{"id":4541,"date":"2026-10-18T21:30:00","date_gmt":"2026-10-18T21:30:00","guid":{"rendered":"https:\/\/www.chess.lumn.eu\/wordpress\/?p=4541"},"modified":"2026-10-19T08:30:24","modified_gmt":"2026-10-19T08:30:24","slug":"gideon-3-1-chessmachine-14-32-150-mhz","status":"publish","type":"post","link":"https:\/\/www.chess.lumn.eu\/wordpress\/2026\/10\/18\/gideon-3-1-chessmachine-14-32-150-mhz\/","title":{"rendered":"Gideon 3.1 sur ChessMachine : 14, 32 et 150 MHz au banc"},"content":{"rendered":"<link rel=\"preconnect\" href=\"https:\/\/fonts.googleapis.com\">\n<link rel=\"preconnect\" href=\"https:\/\/fonts.gstatic.com\" crossorigin>\n<link href=\"https:\/\/fonts.googleapis.com\/css2?family=DM+Serif+Display:ital@0;1&#038;family=DM+Sans:ital,opsz,wght@0,9..40,300..700;1,9..40,400&#038;family=JetBrains+Mono:wght@400;500;700&#038;display=swap\" rel=\"stylesheet\">\n<style>\n.naum-body{\n--creme:#f7f4ee; --encre:#2b2b2b; --rouge:#c0392b; --or:#b8863b; --trait:#e3ddd0; 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21 0\" fill=\"none\" \/><\/g><g id=\"black-bishop\" class=\"black bishop\" fill=\"none\" fill-rule=\"evenodd\" stroke=\"#000\" stroke-width=\"1.5\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><path d=\"M9 36c3.39-.97 10.11.43 13.5-2 3.39 2.43 10.11 1.03 13.5 2 0 0 1.65.54 3 2-.68.97-1.65.99-3 .5-3.39-.97-10.11.46-13.5-1-3.39 1.46-10.11.03-13.5 1-1.354.49-2.323.47-3-.5 1.354-1.94 3-2 3-2zm6-4c2.5 2.5 12.5 2.5 15 0 .5-1.5 0-2 0-2 0-2.5-2.5-4-2.5-4 5.5-1.5 6-11.5-5-15.5-11 4-10.5 14-5 15.5 0 0-2.5 1.5-2.5 4 0 0-.5.5 0 2zM25 8a2.5 2.5 0 1 1-5 0 2.5 2.5 0 1 1 5 0z\" fill=\"#000\" stroke-linecap=\"butt\" \/><path d=\"M17.5 26h10M15 30h15m-7.5-14.5v5M20 18h5\" stroke=\"#fff\" stroke-linejoin=\"miter\" \/><\/g><g id=\"black-queen\" class=\"black queen\" fill=\"#000\" fill-rule=\"evenodd\" stroke=\"#000\" stroke-width=\"1.5\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><g fill=\"#000\" stroke=\"none\"><circle cx=\"6\" cy=\"12\" r=\"2.75\" \/><circle cx=\"14\" cy=\"9\" r=\"2.75\" \/><circle cx=\"22.5\" cy=\"8\" r=\"2.75\" \/><circle cx=\"31\" cy=\"9\" r=\"2.75\" \/><circle cx=\"39\" cy=\"12\" r=\"2.75\" \/><\/g><path d=\"M9 26c8.5-1.5 21-1.5 27 0l2.5-12.5L31 25l-.3-14.1-5.2 13.6-3-14.5-3 14.5-5.2-13.6L14 25 6.5 13.5 9 26zM9 26c0 2 1.5 2 2.5 4 1 1.5 1 1 .5 3.5-1.5 1-1.5 2.5-1.5 2.5-1.5 1.5.5 2.5.5 2.5 6.5 1 16.5 1 23 0 0 0 1.5-1 0-2.5 0 0 .5-1.5-1-2.5-.5-2.5-.5-2 .5-3.5 1-2 2.5-2 2.5-4-8.5-1.5-18.5-1.5-27 0z\" stroke-linecap=\"butt\" \/><path d=\"M11 38.5a35 35 1 0 0 23 0\" fill=\"none\" stroke-linecap=\"butt\" \/><path d=\"M11 29a35 35 1 0 1 23 0M12.5 31.5h20M11.5 34.5a35 35 1 0 0 22 0M10.5 37.5a35 35 1 0 0 24 0\" fill=\"none\" stroke=\"#fff\" \/><\/g><\/defs><\/svg><\/p>\n<article class=\"naum-body\">\n<p class=\"eyebrow\">Laboratoire \u00b7 ChessMachine \u00b7 octobre 2026<\/p>\n<h1>Gideon 3.1 sur ChessMachine : <em>14, 32 et 150 MHz au banc<\/em><\/h1>\n<p class=\"chapeau\">Le champion du monde de Madrid 1992 a jou\u00e9 484 parties de laboratoire \u00e0 trois horloges diff\u00e9rentes. R\u00e9sultat : trois cotes, un \u00e9cart de 170 points entre les deux cartes d&#8217;origine, une acc\u00e9l\u00e9ration qui rapporte moins que pr\u00e9vu, et trois parties \u00e0 savourer, dont une victoire sur Stockfish.<\/p>\n<div class=\"synthese\">\n<div><b>2158<\/b><span>Gideon 3.1 \u00e0 14 MHz \u00b7 183 parties \u00b7 \u00b1 15<\/span><\/div>\n<div><b>2328<\/b><span>Gideon 3.1 \u00e0 32 MHz \u00b7 151 parties \u00b7 \u00b1 16<\/span><\/div>\n<div><b>2387<\/b><span>Gideon 3.1 \u00e0 150 MHz \u00b7 150 parties \u00b7 \u00b1 16<\/span><\/div>\n<div><b>+170<\/b><span>de 14 \u00e0 32 MHz, l&#8217;\u00e9cart \u00ab qui intriguait \u00bb est confirm\u00e9<\/span><\/div>\n<\/div>\n<h2>De quoi on parle<\/h2>\n<p>Gideon 3.1 est le programme d&#8217;Ed Schr\u00f6der qui a remport\u00e9 le championnat du monde des ordinateurs d&#8217;\u00e9checs \u00e0 Madrid, en novembre 1992, sur une carte TASC ChessMachine \u00e0 32 MHz. L&#8217;<a href=\"https:\/\/www.chess.lumn.eu\/wordpress\/2026\/10\/04\/tasc-chessmachine-the-king-gideon-uci\/\">article pr\u00e9c\u00e9dent<\/a> racontait comment la carte, son processeur ARM2 et son livre d&#8217;ouvertures ont \u00e9t\u00e9 \u00e9mul\u00e9s et branch\u00e9s en UCI. Il se terminait sur une promesse : les gauntlets diraient si l&#8217;\u00e9mulation retrouve l&#8217;ordre des listes publi\u00e9es, et si l&#8217;\u00e9cart de 141 points que la Wiki-Elo-Liste donne entre les cartes \u00e0 14 et \u00e0 32 MHz est r\u00e9el. Les gauntlets sont finis. Voici ce qu&#8217;ils disent.<\/p>\n<p>Trois versions ont jou\u00e9 : les deux cartes d&#8217;origine, \u00e0 14 et \u00e0 32 MHz, et une version acc\u00e9l\u00e9r\u00e9e \u00e0 150 MHz, dans l&#8217;esprit des machines CB-Emu \u00ab turbo \u00bb du laboratoire. M\u00eame programme, m\u00eame livre (<code>STANDARD.OBK<\/code>, celui des tournois AEGON), m\u00eame m\u00e9moire de 512 Ko : seule l&#8217;horloge change. Chaque version a affront\u00e9 une \u00e9chelle d&#8217;adversaires \u00e0 cote fixe, dix parties par adversaire \u00e0 60 coups en 15 minutes, jusqu&#8217;\u00e0 ce que deux adversaires lui aient pris plus de 75 % des points, puis un compl\u00e9ment jusqu&#8217;\u00e0 150 parties. La cote est celle de la <a href=\"https:\/\/www.chess.lumn.eu\/wordpress\/2026\/05\/13\/performance-elo\/\">liste Performance Elo<\/a> du site, recalcul\u00e9e par Ordo avec l&#8217;ensemble des parties du laboratoire.<\/p>\n<h2>Trois horloges, trois cotes<\/h2>\n<div class=\"tbl-wrap\">\n<table>\n<thead>\n<tr>\n<th>Version<\/th>\n<th class=\"n\">Parties<\/th>\n<th class=\"n\">Score<\/th>\n<th class=\"n\">Elo labo<\/th>\n<th class=\"n\">Wiki-Elo<\/th>\n<th class=\"n\">BT-2450<\/th>\n<th class=\"n\">BT-2630<\/th>\n<th class=\"n\">Prof.<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Gideon 3.1 ChessMachine 14 MHz<\/td>\n<td class=\"n\">183<\/td>\n<td class=\"n\">99 \u00b7 54 %<\/td>\n<td class=\"n\"><b>2158<\/b> \u00b1 15<\/td>\n<td class=\"n\">2246<\/td>\n<td class=\"n\">2191 \u00b7 25\/30<\/td>\n<td class=\"n\">2220 \u00b7 20\/30<\/td>\n<td class=\"n\">6,7<\/td>\n<\/tr>\n<tr>\n<td>Gideon 3.1 ChessMachine 32 MHz<\/td>\n<td class=\"n\">151<\/td>\n<td class=\"n\">58 \u00b7 38 %<\/td>\n<td class=\"n\"><b>2328<\/b> \u00b1 16<\/td>\n<td class=\"n\">2387<\/td>\n<td class=\"n\">2251 \u00b7 26\/30<\/td>\n<td class=\"n\">2280 \u00b7 21\/30<\/td>\n<td class=\"n\">7,5<\/td>\n<\/tr>\n<tr>\n<td>Gideon 3.1 ChessMachine 150 MHz<\/td>\n<td class=\"n\">150<\/td>\n<td class=\"n\">66 \u00b7 44 %<\/td>\n<td class=\"n\"><b>2387<\/b> \u00b1 16<\/td>\n<td class=\"n\">\u2014<\/td>\n<td class=\"n\">2295 \u00b7 26\/30<\/td>\n<td class=\"n\">2325 \u00b7 21\/30<\/td>\n<td class=\"n\">9,2<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p class=\"legende\">Elo labo : liste Performance Elo du 17 octobre 2026. Wiki-Elo : liste de schach-computer.info, colonne \u00ab actif \u00bb, d\u00e9cembre 2025. BT : tests BT-2450 et BT-2630 du laboratoire, 15 minutes par position, avec le nombre de positions r\u00e9solues. Prof. : profondeur moyenne annonc\u00e9e par le programme sur ses coups de plus de 8 secondes.<\/p>\n<p>Le score brut ne veut rien dire tout seul : la carte \u00e0 14 MHz a 54 % parce qu&#8217;elle a jou\u00e9 des adversaires plus faibles, pris dans une liste qui commence au Saitek Maestro D++. Les deux autres ont pris la liste des programmes DOS, qui d\u00e9marre au MChess 1.71 sur 486 et monte jusqu&#8217;aux moteurs Windows de 2800. C&#8217;est la cote qui compare, et elle dit ceci :<\/p>\n<ul>\n<li><strong>De 14 \u00e0 32 MHz, +170 points.<\/strong> La Wiki-Elo-Liste en donnait 141, le laboratoire en mesure un peu plus. Multiplier l&#8217;horloge par 2,3 vaut ici un bon demi-coup de profondeur (6,7 \u00e0 7,5) et beaucoup plus de points qu&#8217;on n&#8217;en attend d&#8217;ordinaire d&#8217;un seul doublement. Le programme de 1992 est manifestement brid\u00e9 \u00e0 14 MHz.<\/li>\n<li><strong>De 32 \u00e0 150 MHz, +59 points seulement.<\/strong> L\u00e0, c&#8217;est l&#8217;inverse : multiplier l&#8217;horloge par 4,7 rapporte 1,7 demi-coup de profondeur (7,5 \u00e0 9,2) mais \u00e0 peine 60 points. Les tests BT disent la m\u00eame chose, avec +45 points de BT-Elo sur les deux tests et pas une position r\u00e9solue de plus. Deux explications se pr\u00e9sentent, et elles ne s&#8217;excluent pas : au-del\u00e0 de 32 MHz, Gideon atteint des profondeurs o\u00f9 son \u00e9valuation et sa s\u00e9lectivit\u00e9 d&#8217;\u00e9poque comptent plus que la vitesse ; et la fr\u00e9quence de 150 MHz, mesur\u00e9e programme seul, n&#8217;est peut-\u00eatre pas tenue quand quatorze \u00e9mulations tournent de front sur le Ryzen. Le relais le signale quand c&#8217;est le cas ; ce point sera v\u00e9rifi\u00e9 avant de pousser l&#8217;acc\u00e9l\u00e9ration plus loin.<\/li>\n<li><strong>L&#8217;\u00e9chelle du laboratoire est plus basse que la Wiki-Elo-Liste<\/strong> de 60 \u00e0 90 points dans cette zone, ce qu&#8217;on savait d\u00e9j\u00e0 par le Mephisto RISC II et le Saitek RISC 2500. L&#8217;ordre, lui, est respect\u00e9.<\/li>\n<\/ul>\n<div class=\"box naum-coherence-box\"><span class=\"box-titre\">M\u00eames adversaires, trois horloges<\/span>Sur les six adversaires communs aux trois gauntlets, la progression est r\u00e9guli\u00e8re : MChess 1.71 486 : 55 % \u2192 64 % \u2192 85 % ; Fruit 2.1 68040 : 0 % \u2192 46 % \u2192 71 % ; Fritz 3 486 : 25 % \u2192 64 % \u2192 72 % ; Mephisto Berlin Pro : 40 % \u2192 62 % \u2192 82 % ; Fruit 2.1 ARM9 : 10 % \u2192 36 % \u2192 42 % ; Chess Genius 1 486 : 50 % (3 parties) \u2192 54 % \u2192 67 %. La carte \u00e0 14 MHz n&#8217;a pas pris un demi-point \u00e0 Fruit sur 68040 ; celle \u00e0 150 MHz lui en prend sept sur dix.<\/div>\n<h2>La lign\u00e9e Schr\u00f6der sur la liste du laboratoire<\/h2>\n<p>Gideon n&#8217;est pas un programme isol\u00e9 : c&#8217;est le Rebel d&#8217;Ed Schr\u00f6der, compil\u00e9 pour l&#8217;ARM2 de la ChessMachine apr\u00e8s \u00eatre pass\u00e9 par le 65C02 de la Final ChessCard. Le m\u00eame code, \u00e0 quelques ann\u00e9es pr\u00e8s, tourne dans le Mephisto RISC II, dans les Rebel 6, 9 et 12 pour DOS, dans Rebel 6.0 pour Windows, et aujourd&#8217;hui dans Rebel 16 sur huit c\u0153urs. La liste du laboratoire les a tous, mesur\u00e9s dans les m\u00eames conditions, ce qui donne une vue assez unique d&#8217;un programme \u00e0 travers trente ans de mat\u00e9riel.<\/p>\n<div class=\"bar-wrap\">\n<div class=\"bar ici\">\n<div class=\"lib\"><b>Gideon 3.1 ChessMachine 14 MHz<\/b><br \/><span style=\"font-size:.78rem\">ARM2 14 MHz \u00b7 183 p.<\/span><\/div>\n<div class=\"trk\"><i style=\"width:8.3%\"><\/i><\/div>\n<div class=\"val\">2158<\/div>\n<\/div>\n<div class=\"bar\">\n<div class=\"lib\"><b>Rebel 6 486DX 33 MHz<\/b><br \/><span style=\"font-size:.78rem\">PC \u00e9mul\u00e9 \u00b7 211 p.<\/span><\/div>\n<div class=\"trk\"><i style=\"width:10.9%\"><\/i><\/div>\n<div class=\"val\">2207<\/div>\n<\/div>\n<div class=\"bar\">\n<div class=\"lib\"><b>Mephisto RISC II<\/b><br \/><span style=\"font-size:.78rem\">ARM2 14 MHz + 65SC02 \u00b7 658 p.<\/span><\/div>\n<div class=\"trk\"><i style=\"width:12.2%\"><\/i><\/div>\n<div class=\"val\">2231<\/div>\n<\/div>\n<div class=\"bar\">\n<div class=\"lib\"><b>Rebel 9 486DX 33 MHz<\/b><br \/><span style=\"font-size:.78rem\">PC \u00e9mul\u00e9 \u00b7 150 p.<\/span><\/div>\n<div class=\"trk\"><i style=\"width:12.7%\"><\/i><\/div>\n<div class=\"val\">2241<\/div>\n<\/div>\n<div class=\"bar ici\">\n<div class=\"lib\"><b>Gideon 3.1 ChessMachine 32 MHz<\/b><br \/><span style=\"font-size:.78rem\">ARM2 32 MHz \u00b7 151 p.<\/span><\/div>\n<div class=\"trk\"><i style=\"width:17.3%\"><\/i><\/div>\n<div class=\"val\">2328<\/div>\n<\/div>\n<div class=\"bar ici\">\n<div class=\"lib\"><b>Gideon 3.1 ChessMachine 150 MHz<\/b><br \/><span style=\"font-size:.78rem\">ARM 150 MHz, acc\u00e9l\u00e9r\u00e9e \u00b7 150 p.<\/span><\/div>\n<div class=\"trk\"><i style=\"width:20.4%\"><\/i><\/div>\n<div class=\"val\">2387<\/div>\n<\/div>\n<div class=\"bar\">\n<div class=\"lib\"><b>Rebel 9 Pentium 90 MHz<\/b><br \/><span style=\"font-size:.78rem\">PC \u00e9mul\u00e9 \u00b7 150 p.<\/span><\/div>\n<div class=\"trk\"><i style=\"width:21.9%\"><\/i><\/div>\n<div class=\"val\">2417<\/div>\n<\/div>\n<div class=\"bar\">\n<div class=\"lib\"><b>Rebel 6 Pentium 90 MHz<\/b><br \/><span style=\"font-size:.78rem\">PC \u00e9mul\u00e9 \u00b7 156 p.<\/span><\/div>\n<div class=\"trk\"><i style=\"width:23.5%\"><\/i><\/div>\n<div class=\"val\">2447<\/div>\n<\/div>\n<div class=\"bar\">\n<div class=\"lib\"><b>Rebel 12 Pentium 90 MHz<\/b><br \/><span style=\"font-size:.78rem\">PC \u00e9mul\u00e9 \u00b7 135 p.<\/span><\/div>\n<div class=\"trk\"><i style=\"width:25.1%\"><\/i><\/div>\n<div class=\"val\">2477<\/div>\n<\/div>\n<div class=\"bar\">\n<div class=\"lib\"><b>Rebel 6.0 (Windows), 1 thread<\/b><br \/><span style=\"font-size:.78rem\">Ryzen 9 7950X3D \u00b7 620 p.<\/span><\/div>\n<div class=\"trk\"><i style=\"width:35.5%\"><\/i><\/div>\n<div class=\"val\">2674<\/div>\n<\/div>\n<div class=\"bar\">\n<div class=\"lib\"><b>Rebel-Extreme 1.1, 8 threads<\/b><br \/><span style=\"font-size:.78rem\">Ryzen 9 7950X3D \u00b7 70 p.<\/span><\/div>\n<div class=\"trk\"><i style=\"width:83.4%\"><\/i><\/div>\n<div class=\"val\">3585<\/div>\n<\/div>\n<div class=\"bar\">\n<div class=\"lib\"><b>Rebel 16.3, 8 threads<\/b><br \/><span style=\"font-size:.78rem\">Ryzen 9 7950X3D \u00b7 251 p.<\/span><\/div>\n<div class=\"trk\"><i style=\"width:94.6%\"><\/i><\/div>\n<div class=\"val\">3797<\/div>\n<\/div>\n<\/div>\n<p class=\"legende\">Cotes de la liste Performance Elo du laboratoire, 17 octobre 2026. En rouge, les trois ChessMachine de cet article.<\/p>\n<p>Quelques lectures de ce graphique :<\/p>\n<ul>\n<li><strong>La carte \u00e0 32 MHz de 1992 vaut un Rebel 9 sur Pentium 90 de 1997 \u00e0 90 points pr\u00e8s<\/strong>, et d\u00e9passe nettement les Rebel 6 et 9 sur 486. Au championnat de Madrid, la ChessMachine \u00e9tait bien ce qu&#8217;on disait d&#8217;elle : un PC de course dans une carte.<\/li>\n<li><strong>Le Mephisto RISC II fait tourner exactement le m\u00eame Gideon 3.1 \u00e0 la m\u00eame fr\u00e9quence<\/strong> et sort 73 points au-dessus de la ChessMachine \u00e0 14 MHz, avec des barres d&#8217;erreur de \u00b1 8 et \u00b1 15. Sur les tests BT, en revanche, les deux sont au coude \u00e0 coude (2206 contre 2220 au BT-2630). Les candidats \u00e0 l&#8217;explication : le livre, puisque le RISC II joue celui de sa ROM et la ChessMachine le <code>STANDARD.OBK<\/code> de TASC ; la m\u00e9moire, 1 Mo dans le Mephisto d&#8217;apr\u00e8s sa fiche contre 512 Ko ici ; et la gestion du temps, Gideon ne consommant sur la carte que 73 % du temps qu&#8217;on lui donne, ce que le relais compense par un facteur fixe qui n&#8217;est peut-\u00eatre pas celui du logiciel TASC. C&#8217;est le prochain point \u00e0 creuser, avec un match direct entre les deux.<\/li>\n<li><strong>Rebel 6.0 pour Windows, sur un seul c\u0153ur du Ryzen, a battu les deux ChessMachine rapides 19,5 \u00e0 0,5<\/strong> : 9,5-0,5 contre la carte \u00e0 32 MHz, 10-0 contre celle \u00e0 150 MHz. Le grand-p\u00e8re contre le petit-fils, et 300 points d&#8217;\u00e9cart.<\/li>\n<\/ul>\n<h2>Les tests BT<\/h2>\n<p>Les <a href=\"https:\/\/www.chess.lumn.eu\/wordpress\/2026\/10\/19\/tests-bt-mesure-automatisee\/\">tests BT-2450 et BT-2630<\/a> ont \u00e9t\u00e9 pass\u00e9s par les trois versions, quinze minutes par position, en mesurant l&#8217;instant o\u00f9 le bon coup est trouv\u00e9 et gard\u00e9. Pour Gideon, les deux tests racontent une histoire coh\u00e9rente avec les parties : 2191 et 2220 \u00e0 14 MHz, 2251 et 2280 \u00e0 32 MHz, 2295 et 2325 \u00e0 150 MHz. Deux remarques :<\/p>\n<ul>\n<li><strong>Gideon r\u00e9sout mieux qu&#8217;il ne joue.<\/strong> \u00c0 14 MHz, son BT-Elo (2220 au BT-2630) est 60 points au-dessus de sa cote de parties (2158). Pour The King, c&#8217;est l&#8217;inverse, on le verra dans l&#8217;article voisin. Les deux programmes n&#8217;ont pas le m\u00eame rapport entre tactique pure et jeu complet.<\/li>\n<li><strong>Les positions non r\u00e9solues sont toujours les m\u00eames<\/strong>, quelle que soit l&#8217;horloge : 5 positions manqu\u00e9es sur 30 au BT-2450 \u00e0 14 MHz, 4 \u00e0 32 et \u00e0 150 MHz ; 10, 9 et 9 au BT-2630. Une fr\u00e9quence multipli\u00e9e par dix ne d\u00e9bloque qu&#8217;une position par test. Ce sont des positions o\u00f9 ce n&#8217;est pas la profondeur qui manque, mais l&#8217;id\u00e9e.<\/li>\n<\/ul>\n<p>Pour m\u00e9moire, schach-computer.info publie 2203 au BT-2630 pour le Mephisto RISC II, m\u00eame programme \u00e0 la m\u00eame fr\u00e9quence ; le laboratoire mesure 2206 pour le RISC II et 2220 pour la ChessMachine \u00e0 14 MHz. Les trois chiffres sont \u00e0 l&#8217;int\u00e9rieur du bruit du test.<\/p>\n<h2>Trois parties remarquables<\/h2>\n<p>Une par version. Les commentaires suivent la partie coup apr\u00e8s coup ; les \u00e9valuations entre crochets sont celles de Stockfish 17 \u00e0 la profondeur 20, les \u00e9valuations \u00ab annonc\u00e9es \u00bb celles que Gideon a lui-m\u00eame envoy\u00e9es pendant la partie. Les diagrammes sont donn\u00e9s apr\u00e8s le coup indiqu\u00e9 dans leur l\u00e9gende.<\/p>\n<h3>14 MHz : le pion qui enterre une aile<\/h3>\n<p class=\"partie-tete\"><b>Gideon 3.1 ChessMachine 14 MHz \u2013 Mephisto Berlin Pro 68020<\/b> \u00b7 gauntlet du 18 octobre 2026 \u00b7 partie du pion dame \u00b7 1-0 en 44 coups<\/p>\n<p>Le Mephisto Berlin Pro, c&#8217;est le programme de Richard Lang sur 68020, cot\u00e9 2315 au laboratoire, soit 157 points de plus que la petite carte \u00e0 14 MHz. Ce qui suit est une le\u00e7on de jeu positionnel donn\u00e9e par le plus faible des deux.<\/p>\n<p class=\"coups\"><b>1.d4<\/b> <b>Cf6<\/b> <b>2.c4<\/b> <b>e6<\/b> <b>3.Cf3<\/b> <b>d5<\/b> <b>4.e3<\/b> <b>Ce4<\/b> Un cavalier en e4 d\u00e8s le 4<sup>e<\/sup> coup, c&#8217;est un peu t\u00f4t ; Gideon le laisse l\u00e0 et gagne du terrain \u00e0 l&#8217;aile dame. <b>5.Cbd2<\/b> <b>Fb4<\/b> <b>6.a3<\/b> <b>Fd6<\/b> <b>7.c5<\/b> Le pion c5 \u00f4te la case d6 au fou et fixe le pion b7. Berlin Pro ne s&#8217;en inqui\u00e8te pas : il annonce \u22120,24. <b>7\u2026Fe7<\/b> <b>8.Cxe4<\/b> <b>dxe4<\/b> Gideon \u00e9change le cavalier avanc\u00e9 et r\u00e9cup\u00e8re sa structure. Stockfish voit d\u00e9j\u00e0 +1,0. <b>9.Cd2<\/b> <b>f5<\/b> <b>10.b4<\/b> <b>a5<\/b> <b>11.Fb2<\/b> <b>O-O<\/b> <b>12.b5<\/b> <b>b6<\/b> <strong>L&#8217;erreur d\u00e9cisive<\/strong>, jug\u00e9e \u22120,69 par le Berlin Pro \u00e0 la profondeur 4. Il fallait 12\u2026e5 pour ouvrir le centre tant qu&#8217;il en est temps. <b>13.c6<\/b><\/p>\n<div class=\"diag\">\n<figure><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" viewBox=\"0 0 390 390\" style=\"width:100%;height:auto;display:block\"><rect x=\"0\" y=\"0\" width=\"390\" height=\"390\" fill=\"#212121\"\/><rect x=\"15\" y=\"15\" width=\"360\" height=\"360\" fill=\"#ffce9e\"\/><rect x=\"15\" y=\"330\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"105\" y=\"330\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"195\" y=\"330\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"285\" y=\"330\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"60\" y=\"285\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"150\" y=\"285\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"240\" y=\"285\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"330\" y=\"285\" width=\"45\" height=\"45\" 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transform=\"translate(105,15)\"\/><use xlink:href=\"#black-queen\" transform=\"translate(150,15)\"\/><use xlink:href=\"#black-rook\" transform=\"translate(240,15)\"\/><use xlink:href=\"#black-king\" transform=\"translate(285,15)\"\/><use xlink:href=\"#black-pawn\" transform=\"translate(105,60)\"\/><use xlink:href=\"#black-bishop\" transform=\"translate(195,60)\"\/><use xlink:href=\"#black-pawn\" transform=\"translate(285,60)\"\/><use xlink:href=\"#black-pawn\" transform=\"translate(330,60)\"\/><use xlink:href=\"#black-pawn\" transform=\"translate(60,105)\"\/><use xlink:href=\"#white-pawn\" transform=\"translate(105,105)\"\/><use xlink:href=\"#black-pawn\" transform=\"translate(195,105)\"\/><use xlink:href=\"#black-pawn\" transform=\"translate(15,150)\"\/><use xlink:href=\"#white-pawn\" transform=\"translate(60,150)\"\/><use xlink:href=\"#black-pawn\" transform=\"translate(240,150)\"\/><use xlink:href=\"#white-pawn\" transform=\"translate(150,195)\"\/><use xlink:href=\"#black-pawn\" transform=\"translate(195,195)\"\/><use xlink:href=\"#white-pawn\" transform=\"translate(15,240)\"\/><use xlink:href=\"#white-pawn\" transform=\"translate(195,240)\"\/><use xlink:href=\"#white-bishop\" transform=\"translate(60,285)\"\/><use xlink:href=\"#white-knight\" transform=\"translate(150,285)\"\/><use xlink:href=\"#white-pawn\" transform=\"translate(240,285)\"\/><use xlink:href=\"#white-pawn\" transform=\"translate(285,285)\"\/><use xlink:href=\"#white-pawn\" transform=\"translate(330,285)\"\/><use xlink:href=\"#white-rook\" transform=\"translate(15,330)\"\/><use xlink:href=\"#white-queen\" transform=\"translate(150,330)\"\/><use xlink:href=\"#white-king\" transform=\"translate(195,330)\"\/><use xlink:href=\"#white-bishop\" transform=\"translate(240,330)\"\/><use xlink:href=\"#white-rook\" transform=\"translate(330,330)\"\/><text x=\"37\" y=\"11\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">a<\/text><text x=\"37\" y=\"385\" 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y=\"385\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">c<\/text><text x=\"7\" y=\"132\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">6<\/text><text x=\"383\" y=\"132\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">6<\/text><text x=\"172\" y=\"11\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">d<\/text><text x=\"172\" y=\"385\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">d<\/text><text x=\"7\" y=\"177\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">5<\/text><text x=\"383\" y=\"177\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">5<\/text><text x=\"217\" y=\"11\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">e<\/text><text x=\"217\" y=\"385\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">e<\/text><text x=\"7\" y=\"222\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">4<\/text><text x=\"383\" y=\"222\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">4<\/text><text x=\"262\" y=\"11\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">f<\/text><text x=\"262\" y=\"385\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">f<\/text><text x=\"7\" y=\"267\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">3<\/text><text x=\"383\" y=\"267\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">3<\/text><text x=\"307\" y=\"11\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">g<\/text><text x=\"307\" y=\"385\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">g<\/text><text x=\"7\" y=\"312\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">2<\/text><text x=\"383\" y=\"312\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">2<\/text><text x=\"352\" y=\"11\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">h<\/text><text x=\"352\" y=\"385\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">h<\/text><text x=\"7\" y=\"357\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">1<\/text><text x=\"383\" y=\"357\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">1<\/text><\/svg><figcaption>Apr\u00e8s 13.c6 : le cavalier b8 et la tour a8 sont mur\u00e9s. Le cavalier ne bougera qu&#8217;au 32<sup>e<\/sup> coup, pour \u00eatre pris ; la tour au 37<sup>e<\/sup>, pour permettre le mat. Gideon annonce +0,49 \u00e0 la profondeur 6 ; Stockfish, +3,4.<\/figcaption><\/figure>\n<\/div>\n<p class=\"coups\"><b>13\u2026Tf7<\/b> Berlin Pro aurait pu rendre la pi\u00e8ce par 13\u2026Cxc6 14.bxc6 Dd5 et vivre avec un pion de moins ; il pr\u00e9f\u00e8re garder le mat\u00e9riel et perdre la partie. <b>14.Fc4<\/b> <b>Fd6<\/b> <b>15.Fb3<\/b> <b>Dh4<\/b> La dame vient chercher le roi. C&#8217;est tout ce qui reste aux Noirs : une attaque \u00e0 trois pi\u00e8ces contre une aile roi intacte. <b>16.Cc4<\/b> <b>f4<\/b> <b>17.exf4<\/b> <b>Dxf4<\/b> <b>18.De2<\/b> <b>Df5<\/b> <b>19.Ce5<\/b> Stockfish pr\u00e9f\u00e9rait 19.Cxd6, mais Gideon aime son cavalier central et il a raison de ne pas se presser. <b>19\u2026Fxe5<\/b> <b>20.dxe5<\/b> <b>Dg5<\/b> <b>21.O-O<\/b> <b>Tf4<\/b> <b>22.Tad1<\/b> <b>Tg4<\/b> Les tours se massent sur la colonne f ; 22\u2026Tg4 vise g2. <b>23.f4<\/b> <strong>Un coup fort.<\/strong> Gideon ferme la colonne et lance son propre pion, qui va devenir le h\u00e9ros de la partie. <b>23\u2026Dh4<\/b> <b>24.f5<\/b> Annonc\u00e9 +0,88. Le pion f menace de s&#8217;ouvrir le chemin vers e6, puis e7. <b>24\u2026Rf7<\/b> <b>25.Fxe6+<\/b> Le fou se sacrifie pour que le pion passe. Stockfish pr\u00e9f\u00e9rait 25.fxe6+ tout de suite, mais le r\u00e9sultat est le m\u00eame : la 7<sup>e<\/sup> rang\u00e9e va tomber. <b>25\u2026Fxe6<\/b> <b>26.fxe6+<\/b> <b>Re8<\/b><\/p>\n<div class=\"diag\">\n<figure><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" viewBox=\"0 0 390 390\" style=\"width:100%;height:auto;display:block\"><rect x=\"0\" y=\"0\" width=\"390\" height=\"390\" fill=\"#212121\"\/><rect x=\"15\" y=\"15\" width=\"360\" height=\"360\" fill=\"#ffce9e\"\/><rect x=\"15\" y=\"330\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"105\" y=\"330\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"195\" y=\"330\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"285\" y=\"330\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"60\" y=\"285\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"150\" y=\"285\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"240\" y=\"285\" width=\"45\" 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xlink:href=\"#black-rook\" transform=\"translate(15,15)\"\/><use xlink:href=\"#black-knight\" transform=\"translate(60,15)\"\/><use xlink:href=\"#black-king\" transform=\"translate(195,15)\"\/><use xlink:href=\"#black-pawn\" transform=\"translate(105,60)\"\/><use xlink:href=\"#black-pawn\" transform=\"translate(285,60)\"\/><use xlink:href=\"#black-pawn\" transform=\"translate(330,60)\"\/><use xlink:href=\"#black-pawn\" transform=\"translate(60,105)\"\/><use xlink:href=\"#white-pawn\" transform=\"translate(105,105)\"\/><use xlink:href=\"#white-pawn\" transform=\"translate(195,105)\"\/><use xlink:href=\"#black-pawn\" transform=\"translate(15,150)\"\/><use xlink:href=\"#white-pawn\" transform=\"translate(60,150)\"\/><use xlink:href=\"#white-pawn\" transform=\"translate(195,150)\"\/><use xlink:href=\"#black-pawn\" transform=\"translate(195,195)\"\/><use xlink:href=\"#black-rook\" transform=\"translate(285,195)\"\/><use xlink:href=\"#black-queen\" transform=\"translate(330,195)\"\/><use xlink:href=\"#white-pawn\" transform=\"translate(15,240)\"\/><use xlink:href=\"#white-bishop\" transform=\"translate(60,285)\"\/><use xlink:href=\"#white-queen\" transform=\"translate(195,285)\"\/><use xlink:href=\"#white-pawn\" transform=\"translate(285,285)\"\/><use xlink:href=\"#white-pawn\" transform=\"translate(330,285)\"\/><use xlink:href=\"#white-rook\" transform=\"translate(150,330)\"\/><use xlink:href=\"#white-rook\" transform=\"translate(240,330)\"\/><use xlink:href=\"#white-king\" transform=\"translate(285,330)\"\/><text x=\"37\" y=\"11\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">a<\/text><text x=\"37\" y=\"385\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">a<\/text><text x=\"7\" y=\"42\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">8<\/text><text x=\"383\" y=\"42\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" 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fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">4<\/text><text x=\"262\" y=\"11\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">f<\/text><text x=\"262\" y=\"385\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">f<\/text><text x=\"7\" y=\"267\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">3<\/text><text x=\"383\" y=\"267\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">3<\/text><text x=\"307\" y=\"11\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">g<\/text><text x=\"307\" y=\"385\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">g<\/text><text x=\"7\" y=\"312\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">2<\/text><text x=\"383\" y=\"312\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">2<\/text><text x=\"352\" y=\"11\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">h<\/text><text x=\"352\" y=\"385\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">h<\/text><text x=\"7\" y=\"357\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">1<\/text><text x=\"383\" y=\"357\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">1<\/text><\/svg><figcaption>Apr\u00e8s 26\u2026Re8 : deux pions blancs en c6 et e6, \u00e0 une case de la promotion chacun, et le roi noir rejet\u00e9 en e8. Berlin Pro annonce \u22123,00 ; il a compris, trop tard.<\/figcaption><\/figure>\n<\/div>\n<p class=\"coups\"><b>27.g3<\/b> Gideon pousse g3 pour chasser la dame de h4 ; Stockfish aurait jou\u00e9 27.e7 tout de suite. <b>27\u2026Dg5<\/b> <b>28.Df2<\/b> <b>Tf4<\/b> <b>29.Dxf4<\/b> <b>Dxf4<\/b> <b>30.Txf4<\/b> Les Noirs rendent la tour pour liquider les dames. Il reste \u00e0 Gideon une tour et un fou de plus. <b>30\u2026a4<\/b> <b>31.Tf7<\/b> <b>e3<\/b> <b>32.Txc7<\/b> <b>Cxc6<\/b> La tour entre en c7 et prend le pion ; le cavalier noir sort enfin de sa bo\u00eete, pour \u00eatre \u00e9chang\u00e9 contre le pion c6 qui l&#8217;y avait enferm\u00e9. <b>33.bxc6<\/b> <b>e2<\/b> <b>34.Te1<\/b> <b>Rf8<\/b> <b>35.Txe2<\/b> Le dernier espoir noir, un pion en e2, est cueilli par la tour. Gideon annonce +6,49. <b>35\u2026h5<\/b> <b>36.Tf2+<\/b> <b>Rg8<\/b> <b>37.Tff7<\/b> <b>Te8<\/b> <strong>37\u2026Te8 ??<\/strong> Il fallait 37\u2026Rh8. Gideon annonce maintenant le mat en 7, \u00e0 la profondeur 6, et le joue coup pour coup.<\/p>\n<div class=\"diag\">\n<figure><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" viewBox=\"0 0 390 390\" style=\"width:100%;height:auto;display:block\"><rect x=\"0\" y=\"0\" width=\"390\" height=\"390\" fill=\"#212121\"\/><rect x=\"15\" y=\"15\" width=\"360\" height=\"360\" fill=\"#ffce9e\"\/><rect x=\"15\" y=\"330\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"105\" y=\"330\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"195\" y=\"330\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"285\" y=\"330\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"60\" y=\"285\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"150\" y=\"285\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"240\" y=\"285\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"330\" y=\"285\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"15\" y=\"240\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"105\" y=\"240\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"195\" y=\"240\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"285\" y=\"240\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"60\" y=\"195\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"150\" y=\"195\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"240\" y=\"195\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"330\" y=\"195\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"15\" y=\"150\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"105\" y=\"150\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"195\" y=\"150\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"285\" y=\"150\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"60\" y=\"105\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"150\" y=\"105\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"240\" y=\"105\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"330\" y=\"105\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"15\" y=\"60\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"105\" y=\"60\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"195\" y=\"60\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"285\" y=\"60\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"15\" y=\"15\" width=\"45\" height=\"45\" fill=\"#cdd16a\"\/><rect x=\"60\" y=\"15\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"150\" y=\"15\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"195\" y=\"15\" width=\"45\" height=\"45\" fill=\"#cdd16a\"\/><rect x=\"240\" y=\"15\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"330\" y=\"15\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><use xlink:href=\"#black-rook\" transform=\"translate(195,15)\"\/><use xlink:href=\"#black-king\" transform=\"translate(285,15)\"\/><use xlink:href=\"#white-rook\" transform=\"translate(105,60)\"\/><use xlink:href=\"#white-rook\" transform=\"translate(240,60)\"\/><use xlink:href=\"#black-pawn\" transform=\"translate(285,60)\"\/><use xlink:href=\"#black-pawn\" transform=\"translate(60,105)\"\/><use xlink:href=\"#white-pawn\" transform=\"translate(105,105)\"\/><use xlink:href=\"#white-pawn\" transform=\"translate(195,105)\"\/><use xlink:href=\"#white-pawn\" transform=\"translate(195,150)\"\/><use xlink:href=\"#black-pawn\" transform=\"translate(330,150)\"\/><use xlink:href=\"#black-pawn\" transform=\"translate(15,195)\"\/><use xlink:href=\"#white-pawn\" transform=\"translate(15,240)\"\/><use xlink:href=\"#white-pawn\" transform=\"translate(285,240)\"\/><use xlink:href=\"#white-bishop\" transform=\"translate(60,285)\"\/><use xlink:href=\"#white-pawn\" transform=\"translate(330,285)\"\/><use xlink:href=\"#white-king\" transform=\"translate(285,330)\"\/><text x=\"37\" y=\"11\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">a<\/text><text x=\"37\" y=\"385\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">a<\/text><text x=\"7\" y=\"42\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">8<\/text><text x=\"383\" y=\"42\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">8<\/text><text x=\"82\" y=\"11\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">b<\/text><text x=\"82\" y=\"385\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">b<\/text><text x=\"7\" y=\"87\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">7<\/text><text x=\"383\" y=\"87\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">7<\/text><text x=\"127\" y=\"11\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">c<\/text><text x=\"127\" y=\"385\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">c<\/text><text x=\"7\" y=\"132\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">6<\/text><text x=\"383\" y=\"132\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">6<\/text><text x=\"172\" y=\"11\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">d<\/text><text x=\"172\" y=\"385\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">d<\/text><text x=\"7\" y=\"177\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">5<\/text><text x=\"383\" y=\"177\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">5<\/text><text x=\"217\" y=\"11\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">e<\/text><text x=\"217\" y=\"385\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">e<\/text><text x=\"7\" y=\"222\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">4<\/text><text x=\"383\" y=\"222\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">4<\/text><text x=\"262\" y=\"11\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">f<\/text><text x=\"262\" y=\"385\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">f<\/text><text x=\"7\" y=\"267\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">3<\/text><text x=\"383\" y=\"267\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">3<\/text><text x=\"307\" y=\"11\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">g<\/text><text x=\"307\" y=\"385\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">g<\/text><text x=\"7\" y=\"312\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">2<\/text><text x=\"383\" y=\"312\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">2<\/text><text x=\"352\" y=\"11\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">h<\/text><text x=\"352\" y=\"385\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">h<\/text><text x=\"7\" y=\"357\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">1<\/text><text x=\"383\" y=\"357\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">1<\/text><\/svg><figcaption>Apr\u00e8s 37\u2026Te8 : les deux tours blanches sur la 7<sup>e<\/sup>. Gideon annonce mat en 7.<\/figcaption><\/figure>\n<figure><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" viewBox=\"0 0 390 390\" style=\"width:100%;height:auto;display:block\"><rect x=\"0\" y=\"0\" width=\"390\" height=\"390\" fill=\"#212121\"\/><rect x=\"15\" y=\"15\" width=\"360\" height=\"360\" fill=\"#ffce9e\"\/><rect x=\"15\" y=\"330\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"105\" y=\"330\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"195\" y=\"330\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"285\" y=\"330\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"60\" y=\"285\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"150\" y=\"285\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"240\" y=\"285\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"330\" y=\"285\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"15\" y=\"240\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"105\" y=\"240\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"195\" y=\"240\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"285\" y=\"240\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"60\" y=\"195\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"150\" y=\"195\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"240\" y=\"195\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"330\" y=\"195\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"15\" y=\"150\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"105\" y=\"150\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"195\" y=\"150\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"285\" y=\"150\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"60\" y=\"105\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"150\" y=\"105\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"240\" y=\"105\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"330\" y=\"105\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"15\" y=\"60\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"105\" y=\"60\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"195\" y=\"60\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"285\" y=\"60\" width=\"45\" height=\"45\" fill=\"#aaa23a\"\/><rect x=\"60\" y=\"15\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"150\" y=\"15\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"240\" y=\"15\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"285\" y=\"15\" width=\"45\" height=\"45\" fill=\"#cdd16a\"\/><rect x=\"330\" y=\"15\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><use xlink:href=\"#black-king\" transform=\"translate(195,15)\"\/><use xlink:href=\"#white-rook\" transform=\"translate(285,15)\"\/><use xlink:href=\"#white-rook\" transform=\"translate(330,60)\"\/><use xlink:href=\"#black-pawn\" transform=\"translate(60,105)\"\/><use xlink:href=\"#white-pawn\" transform=\"translate(105,105)\"\/><use xlink:href=\"#white-bishop\" transform=\"translate(150,105)\"\/><use xlink:href=\"#white-pawn\" transform=\"translate(195,150)\"\/><use xlink:href=\"#black-pawn\" transform=\"translate(330,150)\"\/><use xlink:href=\"#black-pawn\" transform=\"translate(15,195)\"\/><use xlink:href=\"#white-pawn\" transform=\"translate(15,240)\"\/><use xlink:href=\"#white-pawn\" transform=\"translate(285,240)\"\/><use xlink:href=\"#white-pawn\" transform=\"translate(330,285)\"\/><use xlink:href=\"#white-king\" transform=\"translate(285,330)\"\/><text x=\"37\" y=\"11\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">a<\/text><text x=\"37\" y=\"385\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">a<\/text><text x=\"7\" y=\"42\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">8<\/text><text x=\"383\" y=\"42\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">8<\/text><text x=\"82\" y=\"11\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">b<\/text><text x=\"82\" y=\"385\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">b<\/text><text x=\"7\" y=\"87\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">7<\/text><text x=\"383\" y=\"87\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">7<\/text><text x=\"127\" y=\"11\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">c<\/text><text x=\"127\" y=\"385\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">c<\/text><text x=\"7\" y=\"132\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">6<\/text><text x=\"383\" y=\"132\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">6<\/text><text x=\"172\" y=\"11\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">d<\/text><text x=\"172\" y=\"385\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">d<\/text><text x=\"7\" y=\"177\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">5<\/text><text x=\"383\" y=\"177\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">5<\/text><text x=\"217\" y=\"11\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">e<\/text><text x=\"217\" y=\"385\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">e<\/text><text x=\"7\" y=\"222\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">4<\/text><text x=\"383\" y=\"222\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">4<\/text><text x=\"262\" y=\"11\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">f<\/text><text x=\"262\" y=\"385\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">f<\/text><text x=\"7\" y=\"267\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">3<\/text><text x=\"383\" y=\"267\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">3<\/text><text x=\"307\" y=\"11\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">g<\/text><text x=\"307\" y=\"385\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">g<\/text><text x=\"7\" y=\"312\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">2<\/text><text x=\"383\" y=\"312\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">2<\/text><text x=\"352\" y=\"11\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">h<\/text><text x=\"352\" y=\"385\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">h<\/text><text x=\"7\" y=\"357\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">1<\/text><text x=\"383\" y=\"357\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">1<\/text><\/svg><figcaption>44.Tg8 mat. Le cavalier b8 n&#8217;a boug\u00e9 que pour \u00eatre pris ; le fou c8 n&#8217;a jou\u00e9 qu&#8217;un coup, pour \u00eatre pris lui aussi.<\/figcaption><\/figure>\n<\/div>\n<p class=\"coups\"><b>38.Txg7+<\/b> <b>Rh8<\/b> <b>39.Fc3<\/b> <b>Txe6<\/b> <b>40.Th7+<\/b> <b>Rg8<\/b> <b>41.Tcg7+<\/b> <b>Rf8<\/b> <b>42.Fb4+<\/b> <b>Td6<\/b> <b>43.Fxd6+<\/b> <b>Re8<\/b> <b>44.Tg8#<\/b><\/p>\n<p>Pas un coup brillant dans cette partie, et c&#8217;est pr\u00e9cis\u00e9ment ce qui la rend remarquable : une carte \u00e0 14 MHz qui voit six demi-coups a jou\u00e9 un plan, l&#8217;a tenu quarante coups, et n&#8217;a laiss\u00e9 au programme 157 points plus fort que le choix de la fa\u00e7on de perdre.<\/p>\n<h3>32 MHz : le livre savait, le programme non<\/h3>\n<p class=\"partie-tete\"><b>Gideon 3.1 ChessMachine 32 MHz \u2013 Saitek RISC 2500 v1.04 400 MHz<\/b> \u00b7 gauntlet du 16 octobre 2026 \u00b7 gambit de Belgrade \u00b7 1-0 en 26 coups<\/p>\n<p>Le Saitek RISC 2500 acc\u00e9l\u00e9r\u00e9 \u00e0 400 MHz est cot\u00e9 2440 : c&#8217;est le programme de Johan de Koning, l&#8217;autre auteur de la ChessMachine, avec douze fois l&#8217;horloge de la carte de Gideon. Il va perdre en 26 coups, et l&#8217;histoire tient en une remarque sur les temps de r\u00e9flexion : Gideon a jou\u00e9 ses douze premiers coups en 0 seconde.<\/p>\n<p class=\"coups\"><b>1.e4<\/b> <b>e5<\/b> <b>2.Cc3<\/b> <b>Cc6<\/b> <b>3.Cf3<\/b> <b>Cf6<\/b> <b>4.d4<\/b> <b>exd4<\/b> <b>5.Cd5<\/b> Le gambit de Belgrade. Gideon est dans son livre et le restera jusqu&#8217;au 12<sup>e<\/sup> coup. <b>5\u2026Cxe4<\/b> La r\u00e9ponse la plus ambitieuse ; 5\u2026Cb4 est plus s\u00fbre. <b>6.De2<\/b> <b>f5<\/b> <b>7.Cg5<\/b> <b>d3<\/b> 7\u2026d3 rend le pion pour g\u00eaner le d\u00e9veloppement blanc. Tout cela est de la th\u00e9orie des ann\u00e9es 1980. <b>8.cxd3<\/b> <b>Cd4<\/b> <b>9.Dh5+<\/b> <b>g6<\/b> <b>10.Dh4<\/b> La position critique. La th\u00e9orie recommande <strong>10\u2026c6<\/strong>, qui chasse le cavalier d5 et tient tout.<\/p>\n<div class=\"diag\">\n<figure><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" viewBox=\"0 0 390 390\" style=\"width:100%;height:auto;display:block\"><rect x=\"0\" y=\"0\" width=\"390\" height=\"390\" fill=\"#212121\"\/><rect x=\"15\" y=\"15\" width=\"360\" height=\"360\" fill=\"#ffce9e\"\/><rect x=\"15\" y=\"330\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"105\" y=\"330\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"195\" y=\"330\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"285\" y=\"330\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"60\" y=\"285\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"150\" y=\"285\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"240\" y=\"285\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"330\" y=\"285\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"15\" y=\"240\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"105\" y=\"240\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"195\" y=\"240\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"285\" y=\"240\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"60\" y=\"195\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"150\" y=\"195\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"240\" y=\"195\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"330\" y=\"195\" width=\"45\" height=\"45\" fill=\"#aaa23a\"\/><rect x=\"15\" y=\"150\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"105\" y=\"150\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"195\" y=\"150\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"285\" y=\"150\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"330\" y=\"150\" width=\"45\" height=\"45\" fill=\"#cdd16a\"\/><rect x=\"60\" y=\"105\" width=\"45\" 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transform=\"translate(150,15)\"\/><use xlink:href=\"#black-king\" transform=\"translate(195,15)\"\/><use xlink:href=\"#black-bishop\" transform=\"translate(240,15)\"\/><use xlink:href=\"#black-rook\" transform=\"translate(330,15)\"\/><use xlink:href=\"#black-pawn\" transform=\"translate(15,60)\"\/><use xlink:href=\"#black-pawn\" transform=\"translate(60,60)\"\/><use xlink:href=\"#black-pawn\" transform=\"translate(105,60)\"\/><use xlink:href=\"#black-pawn\" transform=\"translate(150,60)\"\/><use xlink:href=\"#black-pawn\" transform=\"translate(330,60)\"\/><use xlink:href=\"#black-pawn\" transform=\"translate(285,105)\"\/><use xlink:href=\"#white-knight\" transform=\"translate(150,150)\"\/><use xlink:href=\"#black-pawn\" transform=\"translate(240,150)\"\/><use xlink:href=\"#white-knight\" transform=\"translate(285,150)\"\/><use xlink:href=\"#black-knight\" transform=\"translate(150,195)\"\/><use xlink:href=\"#black-knight\" transform=\"translate(195,195)\"\/><use xlink:href=\"#white-queen\" transform=\"translate(330,195)\"\/><use xlink:href=\"#white-pawn\" transform=\"translate(150,240)\"\/><use xlink:href=\"#white-pawn\" transform=\"translate(15,285)\"\/><use xlink:href=\"#white-pawn\" transform=\"translate(60,285)\"\/><use xlink:href=\"#white-pawn\" transform=\"translate(240,285)\"\/><use xlink:href=\"#white-pawn\" transform=\"translate(285,285)\"\/><use xlink:href=\"#white-pawn\" transform=\"translate(330,285)\"\/><use xlink:href=\"#white-rook\" transform=\"translate(15,330)\"\/><use xlink:href=\"#white-bishop\" transform=\"translate(105,330)\"\/><use xlink:href=\"#white-king\" transform=\"translate(195,330)\"\/><use xlink:href=\"#white-bishop\" transform=\"translate(240,330)\"\/><use xlink:href=\"#white-rook\" transform=\"translate(330,330)\"\/><text x=\"37\" y=\"11\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">a<\/text><text x=\"37\" y=\"385\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">a<\/text><text x=\"7\" y=\"42\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">8<\/text><text x=\"383\" y=\"42\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">8<\/text><text x=\"82\" y=\"11\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">b<\/text><text x=\"82\" y=\"385\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">b<\/text><text x=\"7\" y=\"87\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">7<\/text><text x=\"383\" y=\"87\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">7<\/text><text x=\"127\" y=\"11\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">c<\/text><text x=\"127\" y=\"385\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">c<\/text><text x=\"7\" y=\"132\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">6<\/text><text x=\"383\" y=\"132\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">6<\/text><text x=\"172\" y=\"11\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">d<\/text><text x=\"172\" y=\"385\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">d<\/text><text x=\"7\" y=\"177\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">5<\/text><text x=\"383\" y=\"177\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">5<\/text><text x=\"217\" y=\"11\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">e<\/text><text x=\"217\" y=\"385\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">e<\/text><text x=\"7\" y=\"222\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">4<\/text><text x=\"383\" y=\"222\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">4<\/text><text x=\"262\" y=\"11\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">f<\/text><text x=\"262\" y=\"385\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">f<\/text><text x=\"7\" y=\"267\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">3<\/text><text x=\"383\" y=\"267\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">3<\/text><text x=\"307\" y=\"11\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">g<\/text><text x=\"307\" y=\"385\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">g<\/text><text x=\"7\" y=\"312\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">2<\/text><text x=\"383\" y=\"312\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">2<\/text><text x=\"352\" y=\"11\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">h<\/text><text x=\"352\" y=\"385\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">h<\/text><text x=\"7\" y=\"357\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">1<\/text><text x=\"383\" y=\"357\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">1<\/text><\/svg><figcaption>Apr\u00e8s 10.Dh4 : le RISC 2500 a 400 MHz pour trouver 10\u2026c6. Il va pr\u00e9f\u00e9rer prendre la tour.<\/figcaption><\/figure>\n<\/div>\n<p class=\"coups\"><b>10\u2026Cc2+<\/b> <b>11.Rd1<\/b> <b>Cxa1<\/b> <strong>La faute.<\/strong> Le RISC 2500 annonce +2,43 \u00e0 la profondeur 8 : il compte la tour gagn\u00e9e. Stockfish compte autre chose et affiche +4,0 pour les Blancs. Le cavalier a1 ne rejouera plus de la partie. <b>12.dxe4<\/b> Toujours dans le livre. Le <code>STANDARD.OBK<\/code> de Cock de Gorter conna\u00eet ce pi\u00e8ge jusqu&#8217;ici.<\/p>\n<div class=\"diag\">\n<figure><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" viewBox=\"0 0 390 390\" style=\"width:100%;height:auto;display:block\"><rect x=\"0\" y=\"0\" width=\"390\" height=\"390\" fill=\"#212121\"\/><rect x=\"15\" y=\"15\" width=\"360\" height=\"360\" fill=\"#ffce9e\"\/><rect x=\"15\" y=\"330\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"105\" y=\"330\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"195\" y=\"330\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"285\" y=\"330\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"60\" y=\"285\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"150\" y=\"285\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"240\" y=\"285\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"330\" y=\"285\" width=\"45\" height=\"45\" 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transform=\"translate(330,195)\"\/><use xlink:href=\"#white-pawn\" transform=\"translate(15,285)\"\/><use xlink:href=\"#white-pawn\" transform=\"translate(60,285)\"\/><use xlink:href=\"#white-pawn\" transform=\"translate(240,285)\"\/><use xlink:href=\"#white-pawn\" transform=\"translate(285,285)\"\/><use xlink:href=\"#white-pawn\" transform=\"translate(330,285)\"\/><use xlink:href=\"#black-knight\" transform=\"translate(15,330)\"\/><use xlink:href=\"#white-bishop\" transform=\"translate(105,330)\"\/><use xlink:href=\"#white-king\" transform=\"translate(150,330)\"\/><use xlink:href=\"#white-bishop\" transform=\"translate(240,330)\"\/><use xlink:href=\"#white-rook\" transform=\"translate(330,330)\"\/><text x=\"37\" y=\"11\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">a<\/text><text x=\"37\" y=\"385\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">a<\/text><text x=\"7\" y=\"42\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">8<\/text><text x=\"383\" y=\"42\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">8<\/text><text x=\"82\" y=\"11\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">b<\/text><text x=\"82\" y=\"385\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">b<\/text><text x=\"7\" y=\"87\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">7<\/text><text x=\"383\" y=\"87\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">7<\/text><text x=\"127\" y=\"11\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">c<\/text><text x=\"127\" y=\"385\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">c<\/text><text x=\"7\" y=\"132\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">6<\/text><text x=\"383\" y=\"132\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">6<\/text><text x=\"172\" y=\"11\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">d<\/text><text x=\"172\" y=\"385\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">d<\/text><text x=\"7\" y=\"177\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">5<\/text><text x=\"383\" y=\"177\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">5<\/text><text x=\"217\" y=\"11\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">e<\/text><text x=\"217\" y=\"385\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">e<\/text><text x=\"7\" y=\"222\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">4<\/text><text x=\"383\" y=\"222\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">4<\/text><text x=\"262\" y=\"11\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">f<\/text><text x=\"262\" y=\"385\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">f<\/text><text x=\"7\" y=\"267\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">3<\/text><text x=\"383\" y=\"267\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">3<\/text><text x=\"307\" y=\"11\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">g<\/text><text x=\"307\" y=\"385\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">g<\/text><text x=\"7\" y=\"312\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">2<\/text><text x=\"383\" y=\"312\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">2<\/text><text x=\"352\" y=\"11\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">h<\/text><text x=\"352\" y=\"385\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">h<\/text><text x=\"7\" y=\"357\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">1<\/text><text x=\"383\" y=\"357\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">1<\/text><\/svg><figcaption>Apr\u00e8s 12.dxe4 : Gideon sort du livre. Il a une pi\u00e8ce de moins pour un pion, le roi en d1, et il annonce \u22121,29 \u00e0 la profondeur 6. Il se croit perdu ; il est gagnant.<\/figcaption><\/figure>\n<\/div>\n<p class=\"coups\"><b>12\u2026Fg7<\/b> <b>13.exf5<\/b> 12\u2026Fg7 est d\u00e9j\u00e0 une faute (12\u2026c6 tenait encore un peu), et 13.exf5 ouvre la colonne f. <b>13\u2026d6<\/b> <b>14.Fd3<\/b> Gideon annonce encore \u22121,12 apr\u00e8s 14.Fd3. Son \u00e9valuation ne sait pas que le cavalier a1 est mort ; sa recherche, elle, trouve les bons coups. <b>14\u2026c6<\/b> <b>15.f6<\/b> <strong>Le coup juste.<\/strong> Le pion attaque le fou et d\u00e9gage f5 pour les pi\u00e8ces. Annonc\u00e9 +0,34 : c&#8217;est le premier coup que Gideon juge en sa faveur. <b>15\u2026Rf8<\/b><\/p>\n<div class=\"diag\">\n<figure><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" viewBox=\"0 0 390 390\" style=\"width:100%;height:auto;display:block\"><rect x=\"0\" y=\"0\" width=\"390\" height=\"390\" fill=\"#212121\"\/><rect x=\"15\" y=\"15\" width=\"360\" height=\"360\" fill=\"#ffce9e\"\/><rect x=\"15\" y=\"330\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"105\" y=\"330\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"195\" y=\"330\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"285\" y=\"330\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"60\" y=\"285\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"150\" y=\"285\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"240\" y=\"285\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"330\" y=\"285\" width=\"45\" height=\"45\" 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transform=\"translate(150,15)\"\/><use xlink:href=\"#black-king\" transform=\"translate(240,15)\"\/><use xlink:href=\"#black-rook\" transform=\"translate(330,15)\"\/><use xlink:href=\"#black-pawn\" transform=\"translate(15,60)\"\/><use xlink:href=\"#black-pawn\" transform=\"translate(60,60)\"\/><use xlink:href=\"#black-bishop\" transform=\"translate(285,60)\"\/><use xlink:href=\"#black-pawn\" transform=\"translate(330,60)\"\/><use xlink:href=\"#black-pawn\" transform=\"translate(105,105)\"\/><use xlink:href=\"#black-pawn\" transform=\"translate(150,105)\"\/><use xlink:href=\"#white-pawn\" transform=\"translate(240,105)\"\/><use xlink:href=\"#black-pawn\" transform=\"translate(285,105)\"\/><use xlink:href=\"#white-knight\" transform=\"translate(150,150)\"\/><use xlink:href=\"#white-knight\" transform=\"translate(285,150)\"\/><use xlink:href=\"#white-queen\" transform=\"translate(330,195)\"\/><use xlink:href=\"#white-bishop\" transform=\"translate(150,240)\"\/><use xlink:href=\"#white-pawn\" transform=\"translate(15,285)\"\/><use xlink:href=\"#white-pawn\" transform=\"translate(60,285)\"\/><use xlink:href=\"#white-pawn\" transform=\"translate(240,285)\"\/><use xlink:href=\"#white-pawn\" transform=\"translate(285,285)\"\/><use xlink:href=\"#white-pawn\" transform=\"translate(330,285)\"\/><use xlink:href=\"#black-knight\" transform=\"translate(15,330)\"\/><use xlink:href=\"#white-bishop\" transform=\"translate(105,330)\"\/><use xlink:href=\"#white-king\" transform=\"translate(150,330)\"\/><use xlink:href=\"#white-rook\" transform=\"translate(330,330)\"\/><text x=\"37\" y=\"11\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">a<\/text><text x=\"37\" y=\"385\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">a<\/text><text x=\"7\" y=\"42\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">8<\/text><text x=\"383\" y=\"42\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">8<\/text><text x=\"82\" y=\"11\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">b<\/text><text x=\"82\" y=\"385\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">b<\/text><text x=\"7\" y=\"87\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">7<\/text><text x=\"383\" y=\"87\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">7<\/text><text x=\"127\" y=\"11\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">c<\/text><text x=\"127\" y=\"385\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">c<\/text><text x=\"7\" y=\"132\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">6<\/text><text x=\"383\" y=\"132\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">6<\/text><text x=\"172\" y=\"11\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">d<\/text><text x=\"172\" y=\"385\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">d<\/text><text x=\"7\" y=\"177\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">5<\/text><text x=\"383\" y=\"177\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">5<\/text><text x=\"217\" y=\"11\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">e<\/text><text x=\"217\" y=\"385\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">e<\/text><text x=\"7\" y=\"222\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">4<\/text><text x=\"383\" y=\"222\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">4<\/text><text x=\"262\" y=\"11\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">f<\/text><text x=\"262\" y=\"385\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">f<\/text><text x=\"7\" y=\"267\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">3<\/text><text x=\"383\" y=\"267\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">3<\/text><text x=\"307\" y=\"11\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">g<\/text><text x=\"307\" y=\"385\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">g<\/text><text x=\"7\" y=\"312\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">2<\/text><text x=\"383\" y=\"312\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">2<\/text><text x=\"352\" y=\"11\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">h<\/text><text x=\"352\" y=\"385\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">h<\/text><text x=\"7\" y=\"357\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">1<\/text><text x=\"383\" y=\"357\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">1<\/text><\/svg><figcaption>Apr\u00e8s 15\u2026Rf8 ?? (15\u2026Ff5 prolongeait) : la case g7 va sauter.<\/figcaption><\/figure>\n<\/div>\n<p class=\"coups\"><b>16.fxg7+<\/b> <b>Rxg7<\/b> Le roi noir reprend en g7 ; le RISC 2500 annonce maintenant \u221210,09. Il a vu. <b>17.Dd4+<\/b> Dame en d4 avec \u00e9chec, et le fou c4 arrive sur la diagonale du roi. <b>17\u2026Rg8<\/b> <b>18.Fc4<\/b> <b>Fg4+<\/b> 18\u2026Fg4+ est un \u00e9chec de d\u00e9sespoir : la dame prend le fou. <b>19.Dxg4<\/b> <b>De8<\/b> <b>20.Cf6+<\/b> <strong>Fourchette roi-dame.<\/strong> Gideon annonce +6,82 ; Stockfish annonce un mat.<\/p>\n<div class=\"diag\">\n<figure><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" viewBox=\"0 0 390 390\" style=\"width:100%;height:auto;display:block\"><rect x=\"0\" y=\"0\" width=\"390\" height=\"390\" fill=\"#212121\"\/><rect x=\"15\" y=\"15\" width=\"360\" height=\"360\" fill=\"#ffce9e\"\/><rect x=\"15\" y=\"330\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"105\" y=\"330\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"195\" y=\"330\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"285\" y=\"330\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"60\" 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text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">4<\/text><text x=\"383\" y=\"222\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">4<\/text><text x=\"262\" y=\"11\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">f<\/text><text x=\"262\" y=\"385\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">f<\/text><text x=\"7\" y=\"267\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">3<\/text><text x=\"383\" y=\"267\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">3<\/text><text x=\"307\" y=\"11\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">g<\/text><text x=\"307\" y=\"385\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">g<\/text><text x=\"7\" y=\"312\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">2<\/text><text x=\"383\" y=\"312\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">2<\/text><text x=\"352\" y=\"11\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">h<\/text><text x=\"352\" y=\"385\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">h<\/text><text x=\"7\" y=\"357\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">1<\/text><text x=\"383\" y=\"357\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">1<\/text><\/svg><figcaption>Apr\u00e8s 20.Cf6+ : la dame e8 est perdue.<\/figcaption><\/figure>\n<figure><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" viewBox=\"0 0 390 390\" style=\"width:100%;height:auto;display:block\"><rect x=\"0\" y=\"0\" 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y=\"195\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"150\" y=\"195\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"240\" y=\"195\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"330\" y=\"195\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"15\" y=\"150\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"105\" y=\"150\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"195\" y=\"150\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"285\" y=\"150\" width=\"45\" height=\"45\" fill=\"#aaa23a\"\/><rect x=\"60\" y=\"105\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"150\" y=\"105\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"240\" y=\"105\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"330\" y=\"105\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"15\" y=\"60\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"105\" y=\"60\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect 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transform=\"translate(285,150)\"\/><use xlink:href=\"#white-bishop\" transform=\"translate(105,195)\"\/><use xlink:href=\"#white-pawn\" transform=\"translate(15,285)\"\/><use xlink:href=\"#white-pawn\" transform=\"translate(60,285)\"\/><use xlink:href=\"#white-pawn\" transform=\"translate(240,285)\"\/><use xlink:href=\"#white-pawn\" transform=\"translate(285,285)\"\/><use xlink:href=\"#white-pawn\" transform=\"translate(330,285)\"\/><use xlink:href=\"#black-knight\" transform=\"translate(15,330)\"\/><use xlink:href=\"#white-bishop\" transform=\"translate(105,330)\"\/><use xlink:href=\"#white-king\" transform=\"translate(150,330)\"\/><use xlink:href=\"#white-rook\" transform=\"translate(330,330)\"\/><text x=\"37\" y=\"11\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">a<\/text><text x=\"37\" y=\"385\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">a<\/text><text x=\"7\" y=\"42\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">8<\/text><text x=\"383\" y=\"42\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">8<\/text><text x=\"82\" y=\"11\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">b<\/text><text x=\"82\" y=\"385\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">b<\/text><text x=\"7\" y=\"87\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">7<\/text><text x=\"383\" y=\"87\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">7<\/text><text x=\"127\" y=\"11\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">c<\/text><text x=\"127\" y=\"385\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">c<\/text><text x=\"7\" y=\"132\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">6<\/text><text x=\"383\" y=\"132\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">6<\/text><text x=\"172\" y=\"11\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">d<\/text><text x=\"172\" y=\"385\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">d<\/text><text x=\"7\" y=\"177\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">5<\/text><text x=\"383\" y=\"177\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">5<\/text><text x=\"217\" y=\"11\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">e<\/text><text x=\"217\" y=\"385\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">e<\/text><text x=\"7\" y=\"222\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">4<\/text><text x=\"383\" y=\"222\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">4<\/text><text x=\"262\" y=\"11\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">f<\/text><text x=\"262\" y=\"385\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">f<\/text><text x=\"7\" y=\"267\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">3<\/text><text x=\"383\" y=\"267\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">3<\/text><text x=\"307\" y=\"11\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">g<\/text><text x=\"307\" y=\"385\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">g<\/text><text x=\"7\" y=\"312\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">2<\/text><text x=\"383\" y=\"312\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">2<\/text><text x=\"352\" y=\"11\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">h<\/text><text x=\"352\" y=\"385\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">h<\/text><text x=\"7\" y=\"357\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">1<\/text><text x=\"383\" y=\"357\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">1<\/text><\/svg><figcaption>26.Dxg5 mat. Le cavalier noir n&#8217;a jamais quitt\u00e9 a1.<\/figcaption><\/figure>\n<\/div>\n<p class=\"coups\"><b>20\u2026Rf8<\/b> <b>21.Cxe8<\/b> <b>Txe8<\/b> <b>22.Dd7<\/b> Le reste est une chasse au roi : dame en d7, puis d8, la tour tombe, et le cavalier revient donner l&#8217;\u00e9chec d\u00e9cisif en e6. <b>22\u2026Te7<\/b> <b>23.Dd8+<\/b> <b>Rg7<\/b> <b>24.Dxe7+<\/b> <b>Rh6<\/b> <b>25.Ce6+<\/b> <b>g5<\/b> <b>26.Dxg5#<\/b><\/p>\n<p>Ce que cette partie montre, c&#8217;est le dispositif ChessMachine tel qu&#8217;il \u00e9tait vendu : un livre d&#8217;ouvertures profond sur le PC, un programme tactique sur la carte. Le livre a men\u00e9 Gideon dans une position que son \u00e9valuation ne comprenait pas, mais que sa recherche a su gagner. Et le RISC 2500, douze fois plus rapide, a fait exactement ce que la th\u00e9orie dit de ne pas faire.<\/p>\n<h3>150 MHz : Stockfish tombe dans une finale de fous<\/h3>\n<p class=\"partie-tete\"><b>Gideon 3.1 ChessMachine 150 MHz \u2013 Stockfish 11 68040 40 MHz<\/b> \u00b7 gauntlet du 16 octobre 2026 \u00b7 gambit dame refus\u00e9 \u00b7 1-0 en 76 coups<\/p>\n<p>Stockfish 11 sur 68040 \u00e0 40 MHz est cot\u00e9 2546 : c&#8217;est l&#8217;adversaire le plus fort qu&#8217;un Gideon ait battu dans ces trois gauntlets, et le seul point et demi pris \u00e0 ce Stockfish en dix parties. La partie est longue, et c&#8217;est une partie de 2026 : Stockfish y joue mieux que Gideon pendant quarante coups, puis commet une faute de finale que la vieille carte exploite avec une pr\u00e9cision parfaite.<\/p>\n<p class=\"coups\"><b>1.d4<\/b> <b>Cf6<\/b> <b>2.c4<\/b> <b>e6<\/b> <b>3.Cf3<\/b> <b>d5<\/b> <b>4.Fg5<\/b> <b>Fe7<\/b> <b>5.Cc3<\/b> <b>h6<\/b> <b>6.Fxf6<\/b> <b>Fxf6<\/b> <b>7.e3<\/b> <b>O-O<\/b> <b>8.Tc1<\/b> <b>c6<\/b> <b>9.Fd3<\/b> <b>c5<\/b> Les deux programmes sortent du livre dans une structure sym\u00e9trique de gambit dame d&#8217;\u00e9change. <b>10.cxd5<\/b> <b>cxd4<\/b> <b>11.Cxd4<\/b> <b>exd5<\/b> <b>12.O-O<\/b> <b>Cc6<\/b> <b>13.Da4<\/b> <strong>13.Da4 ?<\/strong> Stockfish pr\u00e9f\u00e9rait 13.Cxc6. Les Noirs prennent l&#8217;initiative : \u22120,5. <b>13\u2026Cxd4<\/b> <b>14.exd4<\/b> <b>Fe6<\/b> <b>15.Ce2<\/b> <b>Dd6<\/b> <b>16.Tfe1<\/b> <b>Fg5<\/b> Stockfish, \u00e0 40 MHz et 11 demi-coups, man\u0153uvre sa dame et ses pions h et g avec une aisance que Gideon n&#8217;a pas. Il annonce +0,55 pour lui. <b>17.Tc2<\/b> <b>Tfc8<\/b> <b>18.Txc8+<\/b> <b>Txc8<\/b> <b>19.Dxa7<\/b> <b>Db4<\/b> <b>20.Tb1<\/b> <b>g6<\/b> <b>21.h3<\/b> <b>h5<\/b> <b>22.b3<\/b> <strong>22.b3 ?<\/strong> affaiblit tout : 22\u2026Dd2 ! et les Noirs ont presque un pion de mieux, \u22121,9. <b>22\u2026Dd2<\/b><\/p>\n<div class=\"diag\">\n<figure><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" viewBox=\"0 0 390 390\" style=\"width:100%;height:auto;display:block\"><rect x=\"0\" y=\"0\" width=\"390\" height=\"390\" fill=\"#212121\"\/><rect x=\"15\" y=\"15\" width=\"360\" height=\"360\" fill=\"#ffce9e\"\/><rect x=\"15\" y=\"330\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"105\" y=\"330\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"195\" y=\"330\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"285\" y=\"330\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"60\" y=\"285\" width=\"45\" height=\"45\" 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height=\"45\" fill=\"#d18b47\"\/><rect x=\"285\" y=\"150\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"60\" y=\"105\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"150\" y=\"105\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"240\" y=\"105\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"330\" y=\"105\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"15\" y=\"60\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"105\" y=\"60\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"195\" y=\"60\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"285\" y=\"60\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"60\" y=\"15\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"150\" y=\"15\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"240\" y=\"15\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"330\" y=\"15\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><use xlink:href=\"#black-rook\" transform=\"translate(105,15)\"\/><use xlink:href=\"#black-king\" transform=\"translate(285,15)\"\/><use xlink:href=\"#white-queen\" transform=\"translate(15,60)\"\/><use xlink:href=\"#black-pawn\" transform=\"translate(60,60)\"\/><use xlink:href=\"#black-pawn\" transform=\"translate(240,60)\"\/><use xlink:href=\"#black-bishop\" transform=\"translate(195,105)\"\/><use xlink:href=\"#black-pawn\" transform=\"translate(285,105)\"\/><use xlink:href=\"#black-pawn\" transform=\"translate(150,150)\"\/><use xlink:href=\"#black-bishop\" transform=\"translate(285,150)\"\/><use xlink:href=\"#black-pawn\" transform=\"translate(330,150)\"\/><use xlink:href=\"#white-pawn\" transform=\"translate(150,195)\"\/><use xlink:href=\"#white-pawn\" transform=\"translate(60,240)\"\/><use xlink:href=\"#white-bishop\" transform=\"translate(150,240)\"\/><use xlink:href=\"#white-pawn\" transform=\"translate(330,240)\"\/><use xlink:href=\"#white-pawn\" transform=\"translate(15,285)\"\/><use xlink:href=\"#black-queen\" transform=\"translate(150,285)\"\/><use xlink:href=\"#white-knight\" transform=\"translate(195,285)\"\/><use xlink:href=\"#white-pawn\" transform=\"translate(240,285)\"\/><use xlink:href=\"#white-pawn\" transform=\"translate(285,285)\"\/><use xlink:href=\"#white-rook\" transform=\"translate(60,330)\"\/><use xlink:href=\"#white-king\" transform=\"translate(285,330)\"\/><text x=\"37\" y=\"11\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">a<\/text><text x=\"37\" y=\"385\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">a<\/text><text x=\"7\" y=\"42\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">8<\/text><text x=\"383\" y=\"42\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">8<\/text><text x=\"82\" y=\"11\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">b<\/text><text x=\"82\" y=\"385\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">b<\/text><text x=\"7\" y=\"87\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">7<\/text><text x=\"383\" y=\"87\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">7<\/text><text x=\"127\" y=\"11\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">c<\/text><text x=\"127\" y=\"385\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">c<\/text><text x=\"7\" y=\"132\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">6<\/text><text x=\"383\" y=\"132\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">6<\/text><text x=\"172\" y=\"11\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">d<\/text><text x=\"172\" y=\"385\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">d<\/text><text x=\"7\" y=\"177\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">5<\/text><text x=\"383\" y=\"177\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">5<\/text><text x=\"217\" y=\"11\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">e<\/text><text x=\"217\" y=\"385\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">e<\/text><text x=\"7\" y=\"222\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">4<\/text><text x=\"383\" y=\"222\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">4<\/text><text x=\"262\" y=\"11\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">f<\/text><text x=\"262\" y=\"385\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">f<\/text><text x=\"7\" y=\"267\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">3<\/text><text x=\"383\" y=\"267\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">3<\/text><text x=\"307\" y=\"11\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">g<\/text><text x=\"307\" y=\"385\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">g<\/text><text x=\"7\" y=\"312\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">2<\/text><text x=\"383\" y=\"312\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">2<\/text><text x=\"352\" y=\"11\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">h<\/text><text x=\"352\" y=\"385\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">h<\/text><text x=\"7\" y=\"357\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">1<\/text><text x=\"383\" y=\"357\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">1<\/text><\/svg><figcaption>Apr\u00e8s 22\u2026Dd2 : le meilleur moment de Stockfish. Il annonce +7,02 pour lui \u00e0 la profondeur 12, un chiffre sans rapport avec ce que voit Stockfish 17 (\u22121,9) : \u00e0 40 MHz, le Stockfish de 2020 ne va pas assez profond pour tenir ses propres \u00e9valuations.<\/figcaption><\/figure>\n<\/div>\n<p class=\"coups\"><b>23.Fb5<\/b> <b>b6<\/b> 23\u2026b6 ? rel\u00e2che la pression ; 23\u2026Rg7 gardait l&#8217;avantage. Les dames se tournent autour, les pions a et b disparaissent, et la position s&#8217;\u00e9galise. <b>24.a4<\/b> <b>Dc2<\/b> <b>25.Ta1<\/b> <b>Dxb3<\/b> <b>26.Dxb6<\/b> <b>Db4<\/b> <b>27.a5<\/b> <b>Fd8<\/b> <b>28.Da6<\/b> <b>Db2<\/b> <b>29.Td1<\/b> <b>Dc2<\/b> <strong>29\u2026Dc2 ?<\/strong> Stockfish quitte la bonne case ; 29\u2026Fc7 maintenait l&#8217;\u00e9quilibre. Gideon reprend l&#8217;initiative : +0,4. <b>30.Tc1<\/b> <b>Df5<\/b> <b>31.Ta1<\/b> <b>Fh4<\/b> <b>32.f3<\/b> <b>Fd7<\/b> 31\u2026Fh4 et 32\u2026Fd7 sont deux demi-fautes de plus : Stockfish, qui se voyait gagnant dix coups plus t\u00f4t, annonce \u22121,41 et tente de compliquer. <b>33.f4<\/b> <b>De4<\/b> <b>34.Fxd7<\/b> Gideon rate le plus fort (34.Rh2) et laisse les Noirs revenir \u00e0 \u00e9galit\u00e9. Les dames s&#8217;\u00e9changent, il reste fou et tour de chaque c\u00f4t\u00e9, pion pass\u00e9 a5 contre pion d5. <b>34\u2026Tc2<\/b> <b>35.Da8+<\/b> <b>Rg7<\/b> <b>36.De8<\/b> <b>Dxe8<\/b> <b>37.Fxe8<\/b> <b>Txe2<\/b> <b>38.Fc6<\/b> <b>Te1+<\/b> <strong>38\u2026Te1+ ??<\/strong> La faute. Apr\u00e8s 38\u2026Tc2 la finale tient. L\u00e0, les tours s&#8217;\u00e9changent et le pion a devient intenable pour le fou noir.<\/p>\n<div class=\"diag\">\n<figure><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" viewBox=\"0 0 390 390\" style=\"width:100%;height:auto;display:block\"><rect x=\"0\" y=\"0\" width=\"390\" height=\"390\" fill=\"#212121\"\/><rect x=\"15\" y=\"15\" width=\"360\" height=\"360\" fill=\"#ffce9e\"\/><rect x=\"15\" y=\"330\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"105\" y=\"330\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"195\" y=\"330\" width=\"45\" height=\"45\" fill=\"#aaa23a\"\/><rect x=\"285\" y=\"330\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"60\" y=\"285\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"150\" y=\"285\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"195\" y=\"285\" width=\"45\" height=\"45\" fill=\"#cdd16a\"\/><rect x=\"240\" y=\"285\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"330\" y=\"285\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"15\" y=\"240\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"105\" y=\"240\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"195\" y=\"240\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"285\" y=\"240\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"60\" y=\"195\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"150\" y=\"195\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"240\" y=\"195\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"330\" y=\"195\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"15\" y=\"150\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"105\" y=\"150\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"195\" y=\"150\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"285\" y=\"150\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"60\" y=\"105\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"150\" y=\"105\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"240\" y=\"105\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"330\" y=\"105\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"15\" y=\"60\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"105\" y=\"60\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"195\" y=\"60\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"285\" y=\"60\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"60\" y=\"15\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"150\" y=\"15\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"240\" y=\"15\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"330\" y=\"15\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><use xlink:href=\"#black-pawn\" transform=\"translate(240,60)\"\/><use xlink:href=\"#black-king\" transform=\"translate(285,60)\"\/><use xlink:href=\"#white-bishop\" transform=\"translate(105,105)\"\/><use xlink:href=\"#black-pawn\" transform=\"translate(285,105)\"\/><use xlink:href=\"#white-pawn\" transform=\"translate(15,150)\"\/><use xlink:href=\"#black-pawn\" transform=\"translate(150,150)\"\/><use xlink:href=\"#black-pawn\" transform=\"translate(330,150)\"\/><use xlink:href=\"#white-pawn\" transform=\"translate(150,195)\"\/><use xlink:href=\"#white-pawn\" transform=\"translate(240,195)\"\/><use xlink:href=\"#black-bishop\" transform=\"translate(330,195)\"\/><use xlink:href=\"#white-pawn\" transform=\"translate(330,240)\"\/><use xlink:href=\"#white-pawn\" transform=\"translate(285,285)\"\/><use xlink:href=\"#white-rook\" transform=\"translate(15,330)\"\/><use xlink:href=\"#black-rook\" transform=\"translate(195,330)\"\/><use xlink:href=\"#white-king\" transform=\"translate(285,330)\"\/><text x=\"37\" y=\"11\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">a<\/text><text x=\"37\" y=\"385\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">a<\/text><text x=\"7\" y=\"42\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">8<\/text><text x=\"383\" y=\"42\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">8<\/text><text x=\"82\" y=\"11\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">b<\/text><text x=\"82\" y=\"385\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">b<\/text><text x=\"7\" y=\"87\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">7<\/text><text x=\"383\" y=\"87\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">7<\/text><text x=\"127\" y=\"11\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">c<\/text><text x=\"127\" y=\"385\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">c<\/text><text x=\"7\" y=\"132\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">6<\/text><text x=\"383\" y=\"132\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">6<\/text><text x=\"172\" y=\"11\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">d<\/text><text x=\"172\" y=\"385\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">d<\/text><text x=\"7\" y=\"177\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">5<\/text><text x=\"383\" y=\"177\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">5<\/text><text x=\"217\" y=\"11\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">e<\/text><text x=\"217\" y=\"385\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">e<\/text><text x=\"7\" y=\"222\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">4<\/text><text x=\"383\" y=\"222\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">4<\/text><text x=\"262\" y=\"11\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">f<\/text><text x=\"262\" y=\"385\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">f<\/text><text x=\"7\" y=\"267\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">3<\/text><text x=\"383\" y=\"267\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">3<\/text><text x=\"307\" y=\"11\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">g<\/text><text x=\"307\" y=\"385\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">g<\/text><text x=\"7\" y=\"312\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">2<\/text><text x=\"383\" y=\"312\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">2<\/text><text x=\"352\" y=\"11\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">h<\/text><text x=\"352\" y=\"385\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">h<\/text><text x=\"7\" y=\"357\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">1<\/text><text x=\"383\" y=\"357\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">1<\/text><\/svg><figcaption>Apr\u00e8s 38\u2026Te1+ : Stockfish annonce \u22120,84 ; il n&#8217;a pas vu que le fou va devoir se donner pour le pion a.<\/figcaption><\/figure>\n<figure><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" viewBox=\"0 0 390 390\" style=\"width:100%;height:auto;display:block\"><rect x=\"0\" y=\"0\" width=\"390\" height=\"390\" fill=\"#212121\"\/><rect x=\"15\" y=\"15\" width=\"360\" height=\"360\" fill=\"#ffce9e\"\/><rect x=\"15\" y=\"330\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"105\" y=\"330\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"195\" y=\"330\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"285\" y=\"330\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"60\" y=\"285\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"150\" y=\"285\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"240\" y=\"285\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"330\" y=\"285\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"15\" y=\"240\" 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y=\"105\" width=\"45\" height=\"45\" fill=\"#cdd16a\"\/><rect x=\"150\" y=\"105\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"240\" y=\"105\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"330\" y=\"105\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"15\" y=\"60\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"105\" y=\"60\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"195\" y=\"60\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"285\" y=\"60\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"60\" y=\"15\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"150\" y=\"15\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"240\" y=\"15\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"330\" y=\"15\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><use xlink:href=\"#black-bishop\" transform=\"translate(15,60)\"\/><use xlink:href=\"#black-pawn\" transform=\"translate(240,60)\"\/><use xlink:href=\"#black-king\" transform=\"translate(285,60)\"\/><use xlink:href=\"#white-pawn\" transform=\"translate(15,105)\"\/><use xlink:href=\"#black-pawn\" transform=\"translate(285,105)\"\/><use xlink:href=\"#white-bishop\" transform=\"translate(150,150)\"\/><use xlink:href=\"#white-pawn\" transform=\"translate(240,195)\"\/><use xlink:href=\"#black-pawn\" transform=\"translate(330,195)\"\/><use xlink:href=\"#white-king\" transform=\"translate(150,240)\"\/><use xlink:href=\"#white-pawn\" transform=\"translate(330,240)\"\/><use xlink:href=\"#white-pawn\" transform=\"translate(285,285)\"\/><text x=\"37\" y=\"11\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">a<\/text><text x=\"37\" y=\"385\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">a<\/text><text x=\"7\" y=\"42\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">8<\/text><text x=\"383\" y=\"42\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">8<\/text><text x=\"82\" y=\"11\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">b<\/text><text x=\"82\" y=\"385\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">b<\/text><text x=\"7\" y=\"87\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">7<\/text><text x=\"383\" y=\"87\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">7<\/text><text x=\"127\" y=\"11\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">c<\/text><text x=\"127\" y=\"385\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">c<\/text><text x=\"7\" y=\"132\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">6<\/text><text x=\"383\" y=\"132\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">6<\/text><text x=\"172\" y=\"11\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">d<\/text><text x=\"172\" y=\"385\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">d<\/text><text x=\"7\" y=\"177\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">5<\/text><text x=\"383\" y=\"177\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">5<\/text><text x=\"217\" y=\"11\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">e<\/text><text x=\"217\" y=\"385\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">e<\/text><text x=\"7\" y=\"222\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">4<\/text><text x=\"383\" y=\"222\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">4<\/text><text x=\"262\" y=\"11\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">f<\/text><text x=\"262\" y=\"385\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">f<\/text><text x=\"7\" y=\"267\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">3<\/text><text x=\"383\" y=\"267\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">3<\/text><text x=\"307\" y=\"11\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">g<\/text><text x=\"307\" y=\"385\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">g<\/text><text x=\"7\" y=\"312\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">2<\/text><text x=\"383\" y=\"312\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">2<\/text><text x=\"352\" y=\"11\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">h<\/text><text x=\"352\" y=\"385\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">h<\/text><text x=\"7\" y=\"357\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">1<\/text><text x=\"383\" y=\"357\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">1<\/text><\/svg><figcaption>Apr\u00e8s 44.Fxd5 : Gideon a pris le pion d5 et garde son pion a. Stockfish annonce \u22121,61 ; Stockfish 17 \u00e0 la profondeur 20 dit +5,2.<\/figcaption><\/figure>\n<\/div>\n<p class=\"coups\"><b>39.Txe1<\/b> <b>Fxe1<\/b> <b>40.a6<\/b> Le pion avance et le fou noir doit courir derri\u00e8re en prenant les pions du centre au passage. <b>40\u2026Fc3<\/b> <b>41.Rf1<\/b> <b>Fxd4<\/b> <b>42.Re2<\/b> <b>h4<\/b> <b>43.Rd3<\/b> <b>Fa7<\/b> <b>44.Fxd5<\/b> <b>g5<\/b> <b>45.fxg5<\/b> <b>f6<\/b> 44\u2026g5 ? et 45\u2026f6 ? : Stockfish liquide ses pions pour chercher une forteresse qui n&#8217;existe pas. <b>46.Rc4<\/b> <b>fxg5<\/b> <b>47.Rb5<\/b> <b>Rf6<\/b> <b>48.Rc6<\/b> <b>Re5<\/b> <b>49.Rb7<\/b> <b>Ff2<\/b> <b>50.Ff3<\/b> <b>Rf4<\/b> <b>51.a7<\/b> <b>Fxa7<\/b> <b>52.Rxa7<\/b> Le roi blanc est all\u00e9 chercher la promotion, le fou noir est tomb\u00e9 pour le pion a, et Gideon a un fou pour rien avec deux pions chacun.<\/p>\n<div class=\"diag\">\n<figure><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" 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x=\"383\" y=\"177\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">5<\/text><text x=\"217\" y=\"11\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">e<\/text><text x=\"217\" y=\"385\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">e<\/text><text x=\"7\" y=\"222\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">4<\/text><text x=\"383\" y=\"222\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">4<\/text><text x=\"262\" y=\"11\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">f<\/text><text x=\"262\" y=\"385\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">f<\/text><text x=\"7\" y=\"267\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">3<\/text><text x=\"383\" y=\"267\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">3<\/text><text x=\"307\" y=\"11\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">g<\/text><text x=\"307\" y=\"385\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">g<\/text><text x=\"7\" y=\"312\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">2<\/text><text x=\"383\" y=\"312\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">2<\/text><text x=\"352\" y=\"11\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">h<\/text><text x=\"352\" y=\"385\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">h<\/text><text x=\"7\" y=\"357\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">1<\/text><text x=\"383\" y=\"357\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">1<\/text><\/svg><figcaption>Apr\u00e8s 52.Rxa7 : fou et deux pions contre deux pions. Gideon annonce seulement +0,46 \u00e0 la profondeur 14 : il ne sait pas encore qu&#8217;il gagne, mais il va jouer tous les bons coups.<\/figcaption><\/figure>\n<\/div>\n<p class=\"coups\"><b>52\u2026Re5<\/b> <b>53.Ra6<\/b> <b>Rd4<\/b> <b>54.Rb5<\/b> <b>Re3<\/b> <b>55.Rc4<\/b> <b>Rf4<\/b> <b>56.Rd5<\/b> <b>Rf5<\/b> Les deux rois reviennent ; le roi noir essaie de bloquer en f4-f5, le roi blanc contourne par d5 et d6. <b>57.Rd6<\/b> <b>Rf6<\/b> <b>58.Fg4<\/b> <b>Rf7<\/b> <b>59.Re5<\/b> <b>Rg8<\/b> <b>60.Rf6<\/b> <b>Rh8<\/b> <b>61.Rxg5<\/b> <b>Rg8<\/b> <b>62.Rxh4<\/b> Les deux pions noirs tombent. Gideon annonce +2,89 ; Stockfish, \u221264, c&#8217;est-\u00e0-dire mat vu de loin. <b>62\u2026Rf7<\/b> <b>63.Rg5<\/b> <b>Re7<\/b> <b>64.Fe2<\/b> <b>Re6<\/b> <b>65.g4<\/b> <b>Rf7<\/b> <b>66.Rh6<\/b> <b>Rf6<\/b> <b>67.g5+<\/b> <b>Rf5<\/b> <b>68.g6<\/b> <b>Re4<\/b> <b>69.g7<\/b> <b>Rf5<\/b> <b>70.g8=D<\/b> La promotion. Il reste \u00e0 mater avec dame et fou contre roi nu, ce qui n&#8217;est pas toujours simple pour un programme de 1992.<\/p>\n<div class=\"diag\">\n<figure><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" viewBox=\"0 0 390 390\" style=\"width:100%;height:auto;display:block\"><rect x=\"0\" y=\"0\" width=\"390\" height=\"390\" fill=\"#212121\"\/><rect x=\"15\" y=\"15\" width=\"360\" height=\"360\" fill=\"#ffce9e\"\/><rect x=\"15\" y=\"330\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"105\" y=\"330\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"195\" y=\"330\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"285\" y=\"330\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"60\" y=\"285\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"150\" y=\"285\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"240\" y=\"285\" width=\"45\" height=\"45\" fill=\"#d18b47\"\/><rect x=\"330\" y=\"285\" 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font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">b<\/text><text x=\"82\" y=\"385\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">b<\/text><text x=\"7\" y=\"87\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">7<\/text><text x=\"383\" y=\"87\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">7<\/text><text x=\"127\" y=\"11\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">c<\/text><text x=\"127\" y=\"385\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">c<\/text><text x=\"7\" y=\"132\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">6<\/text><text x=\"383\" y=\"132\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">6<\/text><text x=\"172\" y=\"11\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">d<\/text><text x=\"172\" y=\"385\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">d<\/text><text x=\"7\" y=\"177\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">5<\/text><text x=\"383\" y=\"177\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">5<\/text><text x=\"217\" y=\"11\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">e<\/text><text x=\"217\" y=\"385\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">e<\/text><text x=\"7\" y=\"222\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">4<\/text><text x=\"383\" y=\"222\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">4<\/text><text x=\"262\" y=\"11\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">f<\/text><text x=\"262\" y=\"385\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">f<\/text><text x=\"7\" y=\"267\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">3<\/text><text x=\"383\" y=\"267\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">3<\/text><text x=\"307\" y=\"11\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">g<\/text><text x=\"307\" y=\"385\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">g<\/text><text x=\"7\" y=\"312\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">2<\/text><text x=\"383\" y=\"312\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">2<\/text><text x=\"352\" y=\"11\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">h<\/text><text x=\"352\" y=\"385\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">h<\/text><text x=\"7\" y=\"357\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">1<\/text><text x=\"383\" y=\"357\" font-size=\"10\" fill=\"#e5e5e5\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\">1<\/text><\/svg><figcaption>76.Ff3 mat. Le fou de cases blanches donne le mat dans le coin que la dame a ferm\u00e9.<\/figcaption><\/figure>\n<\/div>\n<p class=\"coups\"><b>70\u2026Re5<\/b> <b>71.Rg5<\/b> <b>Re4<\/b> <b>72.Dd8<\/b> Gideon annonce le mat en 5 au 72<sup>e<\/sup> coup et le conduit sans d\u00e9tour : la dame prend g3, le roi est chass\u00e9 en h1, et c&#8217;est le fou qui conclut. <b>72\u2026Re3<\/b> <b>73.Dd3+<\/b> <b>Rf2<\/b> <b>74.Rf4<\/b> <b>Rg2<\/b> <b>75.Dg3+<\/b> <b>Rh1<\/b> <b>76.Ff3#<\/b><\/p>\n<p>Le score de Gideon \u00e0 150 MHz contre ce Stockfish reste 1,5 sur 10. Mais cette partie a quelque chose de la ChessMachine de Madrid : un programme qui ne comprend pas toujours ce qui se passe, qui le dit dans ses \u00e9valuations, et qui gagne quand m\u00eame parce que, le moment venu, il ne rate pas un coup.<\/p>\n<h2>Le d\u00e9tail des trois gauntlets<\/h2>\n<h3>Gideon 3.1 ChessMachine 14 MHz \u2014 liste \u00ab Psion \u00bb, d\u00e9part Saitek Maestro D++<\/h3>\n<div class=\"tbl-wrap\">\n<table>\n<thead>\n<tr>\n<th>Adversaire<\/th>\n<th class=\"n\">Cote<\/th>\n<th class=\"n\">Score<\/th>\n<th class=\"n\">%<\/th>\n<th class=\"n\">+ = \u2212<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Saitek Maestro D++<\/td>\n<td class=\"n\">1913<\/td>\n<td class=\"n\">9 \/ 10<\/td>\n<td class=\"n\">90 %<\/td>\n<td class=\"n\">+9 =0 \u22121<\/td>\n<\/tr>\n<tr>\n<td>Saitek President<\/td>\n<td class=\"n\">1920<\/td>\n<td class=\"n\">9,5 \/ 10<\/td>\n<td class=\"n\">95 %<\/td>\n<td class=\"n\">+9 =1 \u22120<\/td>\n<\/tr>\n<tr>\n<td>Mephisto Nigel Short<\/td>\n<td class=\"n\">1956<\/td>\n<td class=\"n\">9 \/ 10<\/td>\n<td class=\"n\">90 %<\/td>\n<td class=\"n\">+8 =2 \u22120<\/td>\n<\/tr>\n<tr>\n<td>Mephisto Mondial 68000 XL<\/td>\n<td class=\"n\">1964<\/td>\n<td class=\"n\">8,5 \/ 10<\/td>\n<td class=\"n\">85 %<\/td>\n<td class=\"n\">+8 =1 \u22121<\/td>\n<\/tr>\n<tr>\n<td>Novag Zircon II<\/td>\n<td class=\"n\">1966<\/td>\n<td class=\"n\">8,5 \/ 10<\/td>\n<td class=\"n\">85 %<\/td>\n<td class=\"n\">+8 =1 \u22121<\/td>\n<\/tr>\n<tr>\n<td>Fidelity Designer Mach III<\/td>\n<td class=\"n\">2029<\/td>\n<td class=\"n\">7 \/ 10<\/td>\n<td class=\"n\">70 %<\/td>\n<td class=\"n\">+6 =2 \u22122<\/td>\n<\/tr>\n<tr>\n<td>Fidelity Designer Mach IV<\/td>\n<td class=\"n\">2079<\/td>\n<td class=\"n\">6 \/ 10<\/td>\n<td class=\"n\">60 %<\/td>\n<td class=\"n\">+5 =2 \u22123<\/td>\n<\/tr>\n<tr>\n<td>Novag Sapphire<\/td>\n<td class=\"n\">2101<\/td>\n<td class=\"n\">4,5 \/ 10<\/td>\n<td class=\"n\">45 %<\/td>\n<td class=\"n\">+4 =1 \u22125<\/td>\n<\/tr>\n<tr>\n<td>Mephisto Berlin 68000 v0.03<\/td>\n<td class=\"n\">2120<\/td>\n<td class=\"n\">4 \/ 10<\/td>\n<td class=\"n\">40 %<\/td>\n<td class=\"n\">+3 =2 \u22125<\/td>\n<\/tr>\n<tr>\n<td>Fidelity Elite Avantgarde V9<\/td>\n<td class=\"n\">2125<\/td>\n<td class=\"n\">6 \/ 10<\/td>\n<td class=\"n\">60 %<\/td>\n<td class=\"n\">+5 =2 \u22123<\/td>\n<\/tr>\n<tr>\n<td>Saitek Sparc (rev.518)<\/td>\n<td class=\"n\">2165<\/td>\n<td class=\"n\">4 \/ 10<\/td>\n<td class=\"n\">40 %<\/td>\n<td class=\"n\">+3 =2 \u22125<\/td>\n<\/tr>\n<tr>\n<td>Rebel 6 486DX 33MHz<\/td>\n<td class=\"n\">2180<\/td>\n<td class=\"n\">2,5 \/ 10<\/td>\n<td class=\"n\">25 %<\/td>\n<td class=\"n\">+1 =3 \u22126<\/td>\n<\/tr>\n<tr>\n<td>MChess 1.71 486DX 33MHz<\/td>\n<td class=\"n\">2193<\/td>\n<td class=\"n\">5,5 \/ 10<\/td>\n<td class=\"n\">55 %<\/td>\n<td class=\"n\">+5 =1 \u22124<\/td>\n<\/tr>\n<tr>\n<td>Mephisto RISC II<\/td>\n<td class=\"n\">2228<\/td>\n<td class=\"n\">6 \/ 10<\/td>\n<td class=\"n\">60 %<\/td>\n<td class=\"n\">+5 =2 \u22123<\/td>\n<\/tr>\n<tr>\n<td>Fruit 2.1 68040 40MHz<\/td>\n<td class=\"n\">2240<\/td>\n<td class=\"n\">0 \/ 10<\/td>\n<td class=\"n\">0 %<\/td>\n<td class=\"n\">+0 =0 \u221210<\/td>\n<\/tr>\n<tr>\n<td>Fritz 3 486DX 33MHz<\/td>\n<td class=\"n\">2252<\/td>\n<td class=\"n\">2,5 \/ 10<\/td>\n<td class=\"n\">25 %<\/td>\n<td class=\"n\">+2 =1 \u22127<\/td>\n<\/tr>\n<tr>\n<td>Fruit 2.1 ARM9 30MHz<\/td>\n<td class=\"n\">2310<\/td>\n<td class=\"n\">1 \/ 10<\/td>\n<td class=\"n\">10 %<\/td>\n<td class=\"n\">+1 =0 \u22129<\/td>\n<\/tr>\n<tr>\n<td>Chess Genius 1 486DX 33MHz<\/td>\n<td class=\"n\">2338<\/td>\n<td class=\"n\">1,5 \/ 3<\/td>\n<td class=\"n\">50 %<\/td>\n<td class=\"n\">+1 =1 \u22121<\/td>\n<\/tr>\n<tr>\n<td>Mephisto Berlin Pro 68020<\/td>\n<td class=\"n\">2315<\/td>\n<td class=\"n\">4 \/ 10<\/td>\n<td class=\"n\">40 %<\/td>\n<td class=\"n\">+4 =0 \u22126<\/td>\n<\/tr>\n<tr>\n<th>Total<\/th>\n<th class=\"n\"><\/th>\n<th class=\"n\">99 \/ 183<\/th>\n<th class=\"n\">54 %<\/th>\n<th class=\"n\"><\/th>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<h3>Gideon 3.1 ChessMachine 32 MHz \u2014 liste des programmes DOS, d\u00e9part MChess 1.71 486<\/h3>\n<div class=\"tbl-wrap\">\n<table>\n<thead>\n<tr>\n<th>Adversaire<\/th>\n<th class=\"n\">Cote<\/th>\n<th class=\"n\">Score<\/th>\n<th class=\"n\">%<\/th>\n<th class=\"n\">+ = \u2212<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>MChess 1.71 486DX 33MHz<\/td>\n<td class=\"n\">2193<\/td>\n<td class=\"n\">7 \/ 11<\/td>\n<td class=\"n\">64 %<\/td>\n<td class=\"n\">+6 =2 \u22123<\/td>\n<\/tr>\n<tr>\n<td>Fruit 2.1 68040 40MHz<\/td>\n<td class=\"n\">2240<\/td>\n<td class=\"n\">5,5 \/ 12<\/td>\n<td class=\"n\">46 %<\/td>\n<td class=\"n\">+5 =1 \u22126<\/td>\n<\/tr>\n<tr>\n<td>Fruit 2.1 ARM9 30MHz<\/td>\n<td class=\"n\">2310<\/td>\n<td class=\"n\">4 \/ 11<\/td>\n<td class=\"n\">36 %<\/td>\n<td class=\"n\">+2 =4 \u22125<\/td>\n<\/tr>\n<tr>\n<td>Fritz 3 486DX 33MHz<\/td>\n<td class=\"n\">2252<\/td>\n<td class=\"n\">7 \/ 11<\/td>\n<td class=\"n\">64 %<\/td>\n<td class=\"n\">+5 =4 \u22122<\/td>\n<\/tr>\n<tr>\n<td>Mephisto Berlin Pro 68020<\/td>\n<td class=\"n\">2315<\/td>\n<td class=\"n\">7,5 \/ 12<\/td>\n<td class=\"n\">62 %<\/td>\n<td class=\"n\">+6 =3 \u22123<\/td>\n<\/tr>\n<tr>\n<td>Chess Genius 1 486DX 33MHz<\/td>\n<td class=\"n\">2338<\/td>\n<td class=\"n\">6,5 \/ 12<\/td>\n<td class=\"n\">54 %<\/td>\n<td class=\"n\">+6 =1 \u22125<\/td>\n<\/tr>\n<tr>\n<td>Stockfish 11 68020 16MHz<\/td>\n<td class=\"n\">2383<\/td>\n<td class=\"n\">7,5 \/ 11<\/td>\n<td class=\"n\">68 %<\/td>\n<td class=\"n\">+7 =1 \u22123<\/td>\n<\/tr>\n<tr>\n<td>Mephisto Genius 68030 London<\/td>\n<td class=\"n\">2363<\/td>\n<td class=\"n\">4,5 \/ 11<\/td>\n<td class=\"n\">41 %<\/td>\n<td class=\"n\">+2 =5 \u22124<\/td>\n<\/tr>\n<tr>\n<td>Saitek RISC 2500 v1.04 400 MHz<\/td>\n<td class=\"n\">2440<\/td>\n<td class=\"n\">7,5 \/ 12<\/td>\n<td class=\"n\">62 %<\/td>\n<td class=\"n\">+7 =1 \u22124<\/td>\n<\/tr>\n<tr>\n<td>Rebel 6.0<\/td>\n<td class=\"n\">2674<\/td>\n<td class=\"n\">0,5 \/ 10<\/td>\n<td class=\"n\">5 %<\/td>\n<td class=\"n\">+0 =1 \u22129<\/td>\n<\/tr>\n<tr>\n<td>Stockfish 11 68040 40MHz<\/td>\n<td class=\"n\">2546<\/td>\n<td class=\"n\">0 \/ 10<\/td>\n<td class=\"n\">0 %<\/td>\n<td class=\"n\">+0 =0 \u221210<\/td>\n<\/tr>\n<tr>\n<td>Yace Paderborn<\/td>\n<td class=\"n\">2726<\/td>\n<td class=\"n\">0,5 \/ 10<\/td>\n<td class=\"n\">5 %<\/td>\n<td class=\"n\">+0 =1 \u22129<\/td>\n<\/tr>\n<tr>\n<td>Fritz 5.32 UCI py<\/td>\n<td class=\"n\">2773<\/td>\n<td class=\"n\">0 \/ 10<\/td>\n<td class=\"n\">0 %<\/td>\n<td class=\"n\">+0 =0 \u221210<\/td>\n<\/tr>\n<tr>\n<td>Hiarcs 7 UCI py<\/td>\n<td class=\"n\">2782<\/td>\n<td class=\"n\">0 \/ 8<\/td>\n<td class=\"n\">0 %<\/td>\n<td class=\"n\">+0 =0 \u22128<\/td>\n<\/tr>\n<tr>\n<th>Total<\/th>\n<th class=\"n\"><\/th>\n<th class=\"n\">58 \/ 151<\/th>\n<th class=\"n\">38 %<\/th>\n<th class=\"n\"><\/th>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<h3>Gideon 3.1 ChessMachine 150 MHz \u2014 liste des programmes DOS, d\u00e9part MChess 1.71 486<\/h3>\n<div class=\"tbl-wrap\">\n<table>\n<thead>\n<tr>\n<th>Adversaire<\/th>\n<th class=\"n\">Cote<\/th>\n<th class=\"n\">Score<\/th>\n<th class=\"n\">%<\/th>\n<th class=\"n\">+ = \u2212<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>MChess 1.71 486DX 33MHz<\/td>\n<td class=\"n\">2193<\/td>\n<td class=\"n\">8,5 \/ 10<\/td>\n<td class=\"n\">85 %<\/td>\n<td class=\"n\">+7 =3 \u22120<\/td>\n<\/tr>\n<tr>\n<td>Fruit 2.1 68040 40MHz<\/td>\n<td class=\"n\">2240<\/td>\n<td class=\"n\">8,5 \/ 12<\/td>\n<td class=\"n\">71 %<\/td>\n<td class=\"n\">+8 =1 \u22123<\/td>\n<\/tr>\n<tr>\n<td>Fruit 2.1 ARM9 30MHz<\/td>\n<td class=\"n\">2310<\/td>\n<td class=\"n\">5 \/ 12<\/td>\n<td class=\"n\">42 %<\/td>\n<td class=\"n\">+4 =2 \u22126<\/td>\n<\/tr>\n<tr>\n<td>Fritz 3 486DX 33MHz<\/td>\n<td class=\"n\">2252<\/td>\n<td class=\"n\">6,5 \/ 9<\/td>\n<td class=\"n\">72 %<\/td>\n<td class=\"n\">+5 =3 \u22121<\/td>\n<\/tr>\n<tr>\n<td>Mephisto Berlin Pro 68020<\/td>\n<td class=\"n\">2315<\/td>\n<td class=\"n\">9 \/ 11<\/td>\n<td class=\"n\">82 %<\/td>\n<td class=\"n\">+7 =4 \u22120<\/td>\n<\/tr>\n<tr>\n<td>Chess Genius 1 486DX 33MHz<\/td>\n<td class=\"n\">2338<\/td>\n<td class=\"n\">8 \/ 12<\/td>\n<td class=\"n\">67 %<\/td>\n<td class=\"n\">+7 =2 \u22123<\/td>\n<\/tr>\n<tr>\n<td>Stockfish 11 68020 16MHz<\/td>\n<td class=\"n\">2383<\/td>\n<td class=\"n\">5,5 \/ 12<\/td>\n<td class=\"n\">46 %<\/td>\n<td class=\"n\">+5 =1 \u22126<\/td>\n<\/tr>\n<tr>\n<td>Mephisto Genius 68030 London<\/td>\n<td class=\"n\">2363<\/td>\n<td class=\"n\">9 \/ 10<\/td>\n<td class=\"n\">90 %<\/td>\n<td class=\"n\">+8 =2 \u22120<\/td>\n<\/tr>\n<tr>\n<td>Saitek RISC 2500 v1.04 400 MHz<\/td>\n<td class=\"n\">2440<\/td>\n<td class=\"n\">4,5 \/ 12<\/td>\n<td class=\"n\">38 %<\/td>\n<td class=\"n\">+4 =1 \u22127<\/td>\n<\/tr>\n<tr>\n<td>Rebel 6.0<\/td>\n<td class=\"n\">2674<\/td>\n<td class=\"n\">0 \/ 10<\/td>\n<td class=\"n\">0 %<\/td>\n<td class=\"n\">+0 =0 \u221210<\/td>\n<\/tr>\n<tr>\n<td>Stockfish 11 68040 40MHz<\/td>\n<td class=\"n\">2546<\/td>\n<td class=\"n\">1,5 \/ 10<\/td>\n<td class=\"n\">15 %<\/td>\n<td class=\"n\">+1 =1 \u22128<\/td>\n<\/tr>\n<tr>\n<td>Yace Paderborn<\/td>\n<td class=\"n\">2726<\/td>\n<td class=\"n\">0 \/ 10<\/td>\n<td class=\"n\">0 %<\/td>\n<td class=\"n\">+0 =0 \u221210<\/td>\n<\/tr>\n<tr>\n<td>Fritz 5.32 UCI py<\/td>\n<td class=\"n\">2773<\/td>\n<td class=\"n\">0 \/ 10<\/td>\n<td class=\"n\">0 %<\/td>\n<td class=\"n\">+0 =0 \u221210<\/td>\n<\/tr>\n<tr>\n<td>Hiarcs 7 UCI py<\/td>\n<td class=\"n\">2782<\/td>\n<td class=\"n\">0 \/ 10<\/td>\n<td class=\"n\">0 %<\/td>\n<td class=\"n\">+0 =0 \u221210<\/td>\n<\/tr>\n<tr>\n<th>Total<\/th>\n<th class=\"n\"><\/th>\n<th class=\"n\">66 \/ 150<\/th>\n<th class=\"n\">44 %<\/th>\n<th class=\"n\"><\/th>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p class=\"legende\">Cotes des adversaires : listes du laboratoire au 17 octobre 2026. Les s\u00e9ries de plus de dix parties viennent du compl\u00e9ment \u00e0 150 parties, qui redistribue les places libres vers les adversaires \u00e0 20\u201380 %.<\/p>\n<h2>Ce qu&#8217;il reste \u00e0 faire<\/h2>\n<ul>\n<li>V\u00e9rifier que la version \u00e0 150 MHz tient bien sa fr\u00e9quence sous charge, et sinon la mesurer seule : le petit gain de 32 \u00e0 150 MHz m\u00e9rite d&#8217;\u00eatre confirm\u00e9 avant d&#8217;\u00eatre interpr\u00e9t\u00e9.<\/li>\n<li>Opposer directement la ChessMachine \u00e0 14 MHz et le Mephisto RISC II, m\u00eame programme, m\u00eame horloge, pour isoler l&#8217;effet du livre et de la m\u00e9moire.<\/li>\n<li>Faire la m\u00eame mesure pour The King 2.54 : c&#8217;est l&#8217;objet de l&#8217;<a href=\"https:\/\/www.chess.lumn.eu\/wordpress\/2026\/10\/18\/the-king-2-54-chessmachine-14-32-140-mhz\/\">article voisin<\/a>, et la comparaison des deux programmes de la carte y est d\u00e9taill\u00e9e.<\/li>\n<\/ul>\n<hr>\n<h3>Sources<\/h3>\n<ul class=\"sources\">\n<li>PGN des trois gauntlets, laboratoire chess.lumn.eu, 15\u201318 octobre 2026 ; cotes de la <a href=\"https:\/\/www.chess.lumn.eu\/wordpress\/2026\/05\/13\/performance-elo\/\">liste Performance Elo<\/a> du 17 octobre 2026.<\/li>\n<li><a href=\"https:\/\/www.chess.lumn.eu\/wordpress\/2026\/10\/19\/tests-bt-mesure-automatisee\/\">Les tests BT, mesur\u00e9s en s\u00e9rie<\/a>, chess.lumn.eu, octobre 2026.<\/li>\n<li><a href=\"https:\/\/www.chess.lumn.eu\/wordpress\/2026\/10\/04\/tasc-chessmachine-the-king-gideon-uci\/\">TASC ChessMachine : The King et Gideon redeviennent des moteurs<\/a>, chess.lumn.eu, octobre 2026.<\/li>\n<li><a href=\"https:\/\/www.schach-computer.info\/wiki\/index.php?title=Wiki-Elo-Liste\">Wiki-Elo-Liste<\/a> et <a href=\"https:\/\/www.schach-computer.info\/wiki\/index.php?title=Tasc_ChessMachine\">Tasc ChessMachine<\/a>, schach-computer.info.<\/li>\n<li>Analyses : Stockfish 17.1, profondeur 20, un c\u0153ur par partie.<\/li>\n<\/ul>\n<p class=\"sig\">chess.lumn.eu \u00b7 laboratoire de calibration \u00b7 18 octobre 2026<\/p>\n<\/article>\n","protected":false},"excerpt":{"rendered":"<p>Le champion du monde de Madrid 1992 a jou\u00e9 484 parties de laboratoire \u00e0 trois horloges : 2158 \u00e0 14 MHz, 2328 \u00e0 32 MHz, 2387 \u00e0 150 MHz. Comparaison avec toute la lign\u00e9e Rebel, tests BT, et trois parties comment\u00e9es, dont une victoire sur Stockfish.<\/p>\n","protected":false},"author":1,"featured_media":4539,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"neve_meta_sidebar":"","neve_meta_container":"","neve_meta_enable_content_width":"","neve_meta_content_width":0,"neve_meta_title_alignment":"","neve_meta_author_avatar":"","neve_post_elements_order":"","neve_meta_disable_header":"","neve_meta_disable_footer":"","neve_meta_disable_title":""},"categories":[70,72],"tags":[],"rttpg_featured_image_url":{"full":["https:\/\/www.chess.lumn.eu\/wordpress\/wp-content\/uploads\/2026\/10\/gideon-chessmachine-14-32-150_une.png",1200,800,false],"landscape":["https:\/\/www.chess.lumn.eu\/wordpress\/wp-content\/uploads\/2026\/10\/gideon-chessmachine-14-32-150_une.png",1200,800,false],"portraits":["https:\/\/www.chess.lumn.eu\/wordpress\/wp-content\/uploads\/2026\/10\/gideon-chessmachine-14-32-150_une.png",1200,800,false],"thumbnail":["https:\/\/www.chess.lumn.eu\/wordpress\/wp-content\/uploads\/2026\/10\/gideon-chessmachine-14-32-150_une-150x150.png",150,150,true],"medium":["https:\/\/www.chess.lumn.eu\/wordpress\/wp-content\/uploads\/2026\/10\/gideon-chessmachine-14-32-150_une-300x200.png",300,200,true],"large":["https:\/\/www.chess.lumn.eu\/wordpress\/wp-content\/uploads\/2026\/10\/gideon-chessmachine-14-32-150_une-1024x683.png",1024,683,true],"1536x1536":["https:\/\/www.chess.lumn.eu\/wordpress\/wp-content\/uploads\/2026\/10\/gideon-chessmachine-14-32-150_une.png",1200,800,false],"2048x2048":["https:\/\/www.chess.lumn.eu\/wordpress\/wp-content\/uploads\/2026\/10\/gideon-chessmachine-14-32-150_une.png",1200,800,false],"neve-blog":["https:\/\/www.chess.lumn.eu\/wordpress\/wp-content\/uploads\/2026\/10\/gideon-chessmachine-14-32-150_une-930x620.png",930,620,true]},"rttpg_author":{"display_name":"valterd","author_link":"https:\/\/www.chess.lumn.eu\/wordpress\/author\/valterd\/"},"rttpg_comment":0,"rttpg_category":"<a href=\"https:\/\/www.chess.lumn.eu\/wordpress\/category\/chess-engines\/\" rel=\"category tag\">Chess Engines<\/a> <a href=\"https:\/\/www.chess.lumn.eu\/wordpress\/category\/emulations\/\" rel=\"category tag\">\u00c9mulations<\/a>","rttpg_excerpt":"Le champion du monde de Madrid 1992 a jou\u00e9 484 parties de laboratoire \u00e0 trois horloges : 2158 \u00e0 14 MHz, 2328 \u00e0 32 MHz, 2387 \u00e0 150 MHz. Comparaison avec toute la lign\u00e9e Rebel, tests BT, et trois parties comment\u00e9es, dont une victoire sur Stockfish.","_links":{"self":[{"href":"https:\/\/www.chess.lumn.eu\/wordpress\/wp-json\/wp\/v2\/posts\/4541"}],"collection":[{"href":"https:\/\/www.chess.lumn.eu\/wordpress\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.chess.lumn.eu\/wordpress\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.chess.lumn.eu\/wordpress\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.chess.lumn.eu\/wordpress\/wp-json\/wp\/v2\/comments?post=4541"}],"version-history":[{"count":2,"href":"https:\/\/www.chess.lumn.eu\/wordpress\/wp-json\/wp\/v2\/posts\/4541\/revisions"}],"predecessor-version":[{"id":4550,"href":"https:\/\/www.chess.lumn.eu\/wordpress\/wp-json\/wp\/v2\/posts\/4541\/revisions\/4550"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.chess.lumn.eu\/wordpress\/wp-json\/wp\/v2\/media\/4539"}],"wp:attachment":[{"href":"https:\/\/www.chess.lumn.eu\/wordpress\/wp-json\/wp\/v2\/media?parent=4541"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.chess.lumn.eu\/wordpress\/wp-json\/wp\/v2\/categories?post=4541"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.chess.lumn.eu\/wordpress\/wp-json\/wp\/v2\/tags?post=4541"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}