{"id":4210,"date":"2026-10-03T14:38:49","date_gmt":"2026-10-03T14:38:49","guid":{"rendered":"https:\/\/www.chess.lumn.eu\/wordpress\/2026\/10\/03\/fidelity-par-excellence-73-mhz-le-choc-des-cadences\/"},"modified":"2026-10-17T16:12:27","modified_gmt":"2026-10-17T16:12:27","slug":"fidelity-par-excellence-73-mhz-le-choc-des-cadences","status":"publish","type":"post","link":"https:\/\/www.chess.lumn.eu\/wordpress\/2026\/10\/03\/fidelity-par-excellence-73-mhz-le-choc-des-cadences\/","title":{"rendered":"Fidelity Par Excellence 73 MHz : le choc des cadences"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"4210\" class=\"elementor elementor-4210\">\n\t\t\t\t\t\t<div class=\"elementor-inner\">\n\t\t\t\t<div class=\"elementor-section-wrap\">\n\t\t\t\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-5f1b510 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"5f1b510\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t\t\t<div class=\"elementor-row\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-749c7c1\" data-id=\"749c7c1\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-column-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-1ff8d90 elementor-widget elementor-widget-html\" data-id=\"1ff8d90\" data-element_type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<link rel=\"preconnect\" href=\"https:\/\/fonts.googleapis.com\">\n<link href=\"https:\/\/fonts.googleapis.com\/css2?family=DM+Serif+Display&family=DM+Sans:wght@400;500;700&family=JetBrains+Mono:wght@400;600&display=swap\" rel=\"stylesheet\">\n<style>\n\/* Tout le CSS est cloisonne sous .wrap : aucun selecteur nu (body, h2, a, table...)\n   pour ne jamais deborder sur la page WordPress ni colorer la colonne de droite. *\/\n.wrap{\n  --bg:#f7f4ee; 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text-align:right; white-space:nowrap}\n.wrap table.compare tr.accel td{background:#fdf6df; font-weight:600}\n.wrap .diagram-wrap{background:var(--box); border:1px solid var(--line); border-radius:10px; padding:18px; margin:22px 0; text-align:center;}\n.wrap .diagram-wrap svg{max-width:420px; width:100%; height:auto}\n.wrap .diagram-caption{font-size:.88em; color:#6b5d4d; margin-top:10px; font-style:italic}\n.wrap .movetext{font-family:'JetBrains Mono',monospace; font-size:.84em; background:#f1ede2; border-radius:8px; padding:14px 16px; margin:16px 0; line-height:1.9; color:#3a332a; overflow-x:auto;}\n.wrap .sources{font-size:.88em; color:#6b5d4d}\n.wrap .sources li{margin-bottom:6px}\n.wrap footer{margin-top:60px; padding-top:24px; border-top:1px solid var(--line); font-size:.85em; color:#8a7d6b}\n.wrap .kicker{font-weight:700; color:var(--accent)}\n<\/style>\n<div class=\"wrap\">\n\n<div class=\"hero-label\">Laboratoire CB-Emu &middot; Acc\u00e9l\u00e9ration d'engine<\/div>\n<h1 class=\"naum-title\">Fidelity Par Excellence \u00e0 73 MHz : <em>le Sargon de 1986 change de braquet<\/em><\/h1>\n<p class=\"subtitle\">Un 65C02 cadenc\u00e9 \u00e0 5 MHz en 1986, rejou\u00e9 \u00e0 73 MHz sous \u00e9mulation MAME \u2014 m\u00eame ROM, m\u00eame livre, m\u00eame logique de jeu, seulement l'horloge qui change. R\u00e9sultat : pr\u00e8s de 350 points Elo gagn\u00e9s et un adversaire qui bat d\u00e9sormais des machines qu'il n'aurait jamais d\u00fb approcher.<\/p>\n\n<h2>Le Par Excellence, pour m\u00e9moire<\/h2>\n<p>Le <strong>Fidelity Par Excellence<\/strong> (mod\u00e8le 6083, commercialis\u00e9 \u00e0 partir de 1986) fait partie de la derni\u00e8re g\u00e9n\u00e9ration de d\u00e9di\u00e9s Fidelity b\u00e2tie autour d'un 65C02 et d'un moteur d\u00e9riv\u00e9 de <strong>Sargon<\/strong>, \u00e9crit par <strong>Dan et Kathe Spracklen<\/strong> \u2014 le m\u00eame couple qui avait fond\u00e9 la lign\u00e9e Sargon puis rejoint Fidelity pour encha\u00eener Excellence, Par Excellence et Elite Avant Garde. Fidelity annon\u00e7ait une force de 2100 USCF ; la Swedish Chess Computer Association (SSDF), plus s\u00e9v\u00e8re comme toujours, l'avait mesur\u00e9 autour de <strong>1835<\/strong>. Le tout tournait sur un 65C02 \u00e0 <strong>5 MHz<\/strong>, une fr\u00e9quence modeste m\u00eame pour l'\u00e9poque \u2014 d\u00e9j\u00e0 d\u00e9pass\u00e9e en 1986 par les Mephisto et Saitek \u00e0 base de 68000 ou de Rockwell 65C02 plus rapides.<\/p>\n<p>Dans le classement du laboratoire, la version non acc\u00e9l\u00e9r\u00e9e (<a href=\"https:\/\/www.chess.lumn.eu\/#eng-fidelity-par-excellence-b\">Fidelity Par Excellence (B)<\/a>, 65C02 5 MHz) se situe \u00e0 :<\/p>\n<div class=\"naum-elo-box\">\n  <div class=\"item\"><span class=\"l\">Cote Ordo<\/span><span class=\"v\">1739 \u00b1 10<\/span><\/div>\n  <div class=\"item\"><span class=\"l\">\u00c9chantillon<\/span><span class=\"v\">333 parties<\/span><\/div>\n  <div class=\"item\"><span class=\"l\">Mat\u00e9riel<\/span><span class=\"v\">65C02 @ 5 MHz<\/span><\/div>\n<\/div>\n\n<h2>L'acc\u00e9l\u00e9ration : ce qui change, ce qui ne change pas<\/h2>\n<p>Le protocole CB-Emu n'alt\u00e8re ni la ROM, ni le livre d'ouvertures, ni un seul octet du code du Par Excellence : la carte m\u00e8re du 6083 tourne telle quelle dans MAME, pilot\u00e9e en UCI par le pont <code>dos_uci<\/code>\/\u00e9chiquier habituel du laboratoire. La seule variable modifi\u00e9e est la <strong>fr\u00e9quence d'horloge du 65C02 \u00e9mul\u00e9<\/strong>, port\u00e9e de 5 \u00e0 <strong>73 MHz<\/strong> \u2014 soit un facteur <strong>\u00d714,6<\/strong>. Le programme explore donc la m\u00eame arborescence, avec la m\u00eame \u00e9valuation et la m\u00eame heuristique de 1986, simplement 14,6 fois plus profond\u00e9ment dans le m\u00eame temps de r\u00e9flexion.<\/p>\n<p class=\"naum-note-box\">Pourquoi 73 MHz pr\u00e9cis\u00e9ment ? C'est la fr\u00e9quence calibr\u00e9e pour ce mod\u00e8le dans l'\u00e9chelle CB-Emu du laboratoire (le facteur d'acc\u00e9l\u00e9ration diff\u00e8re d'une machine \u00e0 l'autre selon la marge de stabilit\u00e9 du c\u0153ur \u00e9mul\u00e9) \u2014 un d\u00e9tail de calibration plus qu'un choix arbitraire.<\/p>\n\n<h2>R\u00e9sultats compar\u00e9s : 5 MHz contre 73 MHz<\/h2>\n<div style=\"overflow-x:auto;max-width:100%\">\n<table class=\"compare\">\n<tr><th>Version<\/th><th>Mat\u00e9riel<\/th><th class=\"n\">Cote Ordo<\/th><th class=\"n\">Parties<\/th><\/tr>\n<tr><td>Fidelity Par Excellence (B)<\/td><td>65C02 @ 5 MHz (origine)<\/td><td class=\"n\">1739 \u00b1 10<\/td><td class=\"n\">333<\/td><\/tr>\n<tr class=\"accel\"><td>Fidelity Par Excellence (B) 73 MHz<\/td><td>65C02 @ 73 MHz (acc\u00e9l\u00e9r\u00e9 \u00d714,6)<\/td><td class=\"n\">2090 \u00b1 12<\/td><td class=\"n\">257<\/td><\/tr>\n<\/table><\/div>\n<p>Soit un gain net de <strong class=\"kicker\">+351 Elo<\/strong> pour la seule vitesse d'horloge. Le d\u00e9tail du gauntlet de la version acc\u00e9l\u00e9r\u00e9e (classement par cote d'adversaire croissante) :<\/p>\n<div style=\"overflow-x:auto;max-width:100%\"><table class=\"ladder\"><tr><th>Adversaire<\/th><th class=\"n\">Cote<\/th><th class=\"n\">Score<\/th><th class=\"n\">%<\/th><th class=\"n\">Perf<\/th><\/tr><tr><td>Saitek Simultano (ver. B)<\/td><td class=\"n\">1757<\/td><td class=\"n\">7.5 \/ 10<\/td><td class=\"n\">75&nbsp;%<\/td><td class=\"n\">1948<\/td><\/tr><tr><td>Novag Constellation Forte A<\/td><td class=\"n\">1803<\/td><td class=\"n\">10.0 \/ 10<\/td><td class=\"n\">100&nbsp;%<\/td><td class=\"n\">2332<\/td><\/tr><tr><td>Fidelity Designer 2100<\/td><td class=\"n\">1794<\/td><td class=\"n\">8.0 \/ 10<\/td><td class=\"n\">80&nbsp;%<\/td><td class=\"n\">2035<\/td><\/tr><tr><td>Mephisto MM IV (v7.10)<\/td><td class=\"n\">1802<\/td><td class=\"n\">8.5 \/ 10<\/td><td class=\"n\">85&nbsp;%<\/td><td class=\"n\">2103<\/td><\/tr><tr><td>Mephisto MM V (v5.1)<\/td><td class=\"n\">1834<\/td><td class=\"n\">7.0 \/ 10<\/td><td class=\"n\">70&nbsp;%<\/td><td class=\"n\">1981<\/td><\/tr><tr><td>Saitek Turbo King II (D+)<\/td><td class=\"n\">1818<\/td><td class=\"n\">9.5 \/ 10<\/td><td class=\"n\">95&nbsp;%<\/td><td class=\"n\">2330<\/td><\/tr><tr><td>Mephisto Modena (set 3)<\/td><td class=\"n\">1838<\/td><td class=\"n\">7.5 \/ 10<\/td><td class=\"n\">75&nbsp;%<\/td><td class=\"n\">2029<\/td><\/tr><tr><td>Saitek Corona II (ver. D+)<\/td><td class=\"n\">1856<\/td><td class=\"n\">10.0 \/ 10<\/td><td class=\"n\">100&nbsp;%<\/td><td class=\"n\">2385<\/td><\/tr><tr><td>Novag Super Expert C v3.6<\/td><td class=\"n\">1886<\/td><td class=\"n\">6.5 \/ 11<\/td><td class=\"n\">59&nbsp;%<\/td><td class=\"n\">1950<\/td><\/tr><tr><td>Novag Super Forte C v3.6<\/td><td class=\"n\">1884<\/td><td class=\"n\">9.0 \/ 10<\/td><td class=\"n\">90&nbsp;%<\/td><td class=\"n\">2266<\/td><\/tr><tr><td>Saitek Maestro D++<\/td><td class=\"n\">1913<\/td><td class=\"n\">7.0 \/ 10<\/td><td class=\"n\">70&nbsp;%<\/td><td class=\"n\">2060<\/td><\/tr><tr><td>Mephisto Nigel Short<\/td><td class=\"n\">1956<\/td><td class=\"n\">9.0 \/ 10<\/td><td class=\"n\">90&nbsp;%<\/td><td class=\"n\">2338<\/td><\/tr><tr><td>Saitek President<\/td><td class=\"n\">1920<\/td><td class=\"n\">9.5 \/ 10<\/td><td class=\"n\">95&nbsp;%<\/td><td class=\"n\">2432<\/td><\/tr><tr><td>Novag Zircon II<\/td><td class=\"n\">1966<\/td><td class=\"n\">6.0 \/ 11<\/td><td class=\"n\">55&nbsp;%<\/td><td class=\"n\">1998<\/td><\/tr><tr><td>Mephisto Mondial 68000 XL<\/td><td class=\"n\">1964<\/td><td class=\"n\">7.0 \/ 11<\/td><td class=\"n\">64&nbsp;%<\/td><td class=\"n\">2061<\/td><\/tr><tr><td>Fidelity Designer Mach III<\/td><td class=\"n\">2029<\/td><td class=\"n\">7.0 \/ 11<\/td><td class=\"n\">64&nbsp;%<\/td><td class=\"n\">2126<\/td><\/tr><tr><td>Fidelity Designer Mach IV<\/td><td class=\"n\">2079<\/td><td class=\"n\">6.5 \/ 10<\/td><td class=\"n\">65&nbsp;%<\/td><td class=\"n\">2187<\/td><\/tr><tr><td>Novag Sapphire<\/td><td class=\"n\">2101<\/td><td class=\"n\">3.5 \/ 10<\/td><td class=\"n\">35&nbsp;%<\/td><td class=\"n\">1993<\/td><\/tr><tr><td>Fidelity Elite Avantgarde V9<\/td><td class=\"n\">2125<\/td><td class=\"n\">3.0 \/ 10<\/td><td class=\"n\">30&nbsp;%<\/td><td class=\"n\">1978<\/td><\/tr><tr><td>Mephisto Berlin 68000 v0.03<\/td><td class=\"n\">2120<\/td><td class=\"n\">5.5 \/ 11<\/td><td class=\"n\">50&nbsp;%<\/td><td class=\"n\">2120<\/td><\/tr><tr><td>Saitek Sparc (rev.518)<\/td><td class=\"n\">2165<\/td><td class=\"n\">3.0 \/ 10<\/td><td class=\"n\">30&nbsp;%<\/td><td class=\"n\">2018<\/td><\/tr><tr><td>Novag Star Diamond (v1.04)<\/td><td class=\"n\">2226<\/td><td class=\"n\">0.5 \/ 1<\/td><td class=\"n\">50&nbsp;%<\/td><td class=\"n\">2226<\/td><\/tr><tr><td>Saitek RISC 2500 v1.04<\/td><td class=\"n\">2180<\/td><td class=\"n\">4.0 \/ 11<\/td><td class=\"n\">36&nbsp;%<\/td><td class=\"n\">2083<\/td><\/tr><tr><td>Mephisto RISC II<\/td><td class=\"n\">2228<\/td><td class=\"n\">3.5 \/ 10<\/td><td class=\"n\">35&nbsp;%<\/td><td class=\"n\">2120<\/td><\/tr><tr><td>Mephisto Berlin Pro 68020<\/td><td class=\"n\">2315<\/td><td class=\"n\">1.5 \/ 10<\/td><td class=\"n\">15&nbsp;%<\/td><td class=\"n\">2014<\/td><\/tr><tr><td>Mephisto Genius 68030 London<\/td><td class=\"n\">2363<\/td><td class=\"n\">0.0 \/ 10<\/td><td class=\"n\">0&nbsp;%<\/td><td class=\"n\">1834<\/td><\/tr><\/table><\/div>\n<p class=\"game-sub\">Cote sur l'\u00e9chelle du gauntlet : 2102 &plusmn; 25 (257 parties, adversaires \u00e0 cote fixe).<\/p>\n<p>La cote finale se stabilise autour de <strong>2100 Elo<\/strong> \u2014 un Par Excellence qui, en passant de 5 \u00e0 73 MHz, quitte la cave des machines sous les 1800 points pour s'installer dans le peloton des meilleurs d\u00e9di\u00e9s 8 et 16 bits jamais mesur\u00e9s par le laboratoire, \u00e0 hauteur d'un Mephisto Nigel Short ou d'un Saitek President.<\/p>\n\n<h2>Un gain hors de proportion avec la vitesse<\/h2>\n<p>351 points Elo pour un facteur \u00d714,6 en vitesse, c'est consid\u00e9rable \u2014 bien plus que ce qu'on observe en g\u00e9n\u00e9ral sur des moteurs modernes, o\u00f9 chaque doublement de la vitesse de recherche ne rapporte souvent que 50 \u00e0 80 Elo (la fameuse loi des rendements d\u00e9croissants de la recherche alpha-b\u00eata profonde). L'explication la plus probable tient \u00e0 la nature m\u00eame du programme : un Sargon de 1986 tourne avec un \u00e9lagage minimal, une \u00e9valuation sommaire et une profondeur de recherche tr\u00e8s faible \u00e0 5 MHz \u2014 probablement 3 \u00e0 4 plis en moyenne en milieu de partie. Dans cette zone de profondeur, chaque pli suppl\u00e9mentaire change qualitativement la qualit\u00e9 du jeu (on sort du simple comptage de mat\u00e9riel pour commencer \u00e0 voir les combinaisons \u00e0 deux et trois coups) ; l'effet marginal d'un pli de plus y est donc bien plus fort que pour un moteur qui cherche d\u00e9j\u00e0 20 plis. Acc\u00e9l\u00e9rer un moteur peu profond est, en somme, un des leviers les plus rentables qui soient pour un d\u00e9di\u00e9 de cette g\u00e9n\u00e9ration.<\/p>\n<p>Cette intuition n'est pas propre au laboratoire : la communaut\u00e9 des collectionneurs de d\u00e9di\u00e9s pratique l'overclocking de 65C02 depuis longtemps. On trouve ainsi, sur le forum allemand <a href=\"https:\/\/www.schachcomputer.info\/forum\/showthread.php?t=5239\" target=\"_blank\" rel=\"noopener\">schachcomputer.info<\/a>, la trace d'une partie de tournoi amateur opposant un <strong>Par Excellence acc\u00e9l\u00e9r\u00e9 \u00e0 16 MHz<\/strong> \u00e0 une <strong>Novag Super Constellation \u00e0 18 MHz<\/strong> \u2014 preuve que le principe (remplacer le quartz du 65C02 pour gagner en force) est une pratique document\u00e9e et appr\u00e9ci\u00e9e chez les passionn\u00e9s, bien avant que l'\u00e9mulation ne permette de le faire proprement et de fa\u00e7on mesurable. Les forums et wikis consult\u00e9s (<a href=\"https:\/\/www.chessprogramming.org\/Par_Excellence\" target=\"_blank\" rel=\"noopener\">Chess Programming Wiki<\/a>, <a href=\"https:\/\/www.schach-computer.info\/wiki\/index.php\/Fidelity_Par_Excellence\" target=\"_blank\" rel=\"noopener\">schach-computer.info<\/a>) ne publient malheureusement pas de cote chiffr\u00e9e pour ces versions maison \u00e0 8, 12 ou 16 MHz \u2014 l'information s'arr\u00eate \u00e0 la confirmation que la pratique existe et qu'elle est prise au s\u00e9rieux par les joueurs de tournois de d\u00e9di\u00e9s. C'est pr\u00e9cis\u00e9ment le vide que la m\u00e9thode du laboratoire comble : une mesure Elo reproductible, sur 257 parties contre une \u00e9chelle calibr\u00e9e, plut\u00f4t qu'une poign\u00e9e de parties amicales.<\/p>\n\n<h2>Trois parties spectaculaires<\/h2>\n<p>\u00c0 2100 Elo de performance moyenne, le Par Excellence 73 MHz ne se contente pas d'empocher des demi-points sur le temps : il produit de vraies combinaisons, v\u00e9rifi\u00e9es ici au moteur (Stockfish 16, profondeur 20) pour s'assurer qu'il ne s'agit pas d'un simple cadeau de l'adversaire. Voici trois parties qui illustrent bien le niveau atteint.<\/p>\n\n<h3 class=\"game-title\">1. Le pi\u00e8ge de la tour en h5<\/h3>\n<p class=\"game-sub\">Fidelity Par Excellence (B) 73 MHz (blancs) \u2014 Saitek Corona II (ver. D+) (noirs), gauntlet CB-Emu, 2026 &middot; Ruy Lopez (Berlin) &middot; 1\u20130 en 29 coups<\/p>\n<p>Apr\u00e8s l'habituelle Berlinoise (7...Be7 8.Bf1 O-O), le Par Excellence lance <strong>10.Rh5!?<\/strong> \u2014 une tour avanc\u00e9e sur une case a priori absurde, qui n'a l'air de rien de plus qu'une provocation. 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case de repli s\u00fbre (14...Dd6 sauvait la pi\u00e8ce) ; en jouant 14...g6 au lieu de reculer, Corona II laisse le pion c3 et le futur 15.cxd4 encaisser la tour.<\/div>\n<\/div>\n<p>15.cxd4 gxh5 16.Qxh5 et le Par Excellence a rendu l'exchange d'une tour contre un pion, mais r\u00e9cup\u00e8re une tour pleine au passage : au compteur, il est tout simplement sorti gagnant de l'\u00e9change de tours engag\u00e9 d\u00e8s le 10\u1d49 coup. Ce qui suit est une vraie chasse au roi : <strong>17.Qxh7+!<\/strong> ouvre le roi noir, qui est tra\u00een\u00e9 de f8 \u00e0 travers tout l'\u00e9chiquier \u2014 e7, d6, c6 \u2014 sous une pluie de coups de la dame et du fou blancs, jusqu'\u00e0 la case a6.<\/p>\n<p>Fait notable : au moment de 17.Qxh7+, Stockfish jugeait encore la position l\u00e9g\u00e8rement favorable aux <em>noirs<\/em> (-5,96). 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28.324H7.867l3.985-10.336H6.25z\" \/><\/g><g transform=\"translate(0, 20) scale(0.75, 0.75)\" fill=\"#e5e5e5\" stroke=\"#e5e5e5\"><path d=\"M10 22.785q-1.125 0-1.773.602-.641.601-.641 1.656t.64 1.656q.649.602 1.774.602t1.773-.602q.649-.61.649-1.656 0-1.055-.649-1.656-.64-.602-1.773-.602zm-1.578-.672q-1.016-.25-1.586-.945-.563-.695-.563-1.695 0-1.399.993-2.211 1-.813 2.734-.813 1.742 0 2.734.813.993.812.993 2.21 0 1-.57 1.696-.563.695-1.571.945 1.14.266 1.773 1.04.641.773.641 1.89 0 1.695-1.04 2.602-1.03.906-2.96.906t-2.969-.906Q6 26.738 6 25.043q0-1.117.64-1.89.641-.774 1.782-1.04zm-.578-2.492q0 .906.562 1.414.57.508 1.594.508 1.016 0 1.586-.508.578-.508.578-1.414 0-.906-.578-1.414-.57-.508-1.586-.508-1.023 0-1.594.508-.562.508-.562 1.414z\" \/><\/g><g transform=\"translate(375, 20) scale(0.75, 0.75)\" fill=\"#e5e5e5\" stroke=\"#e5e5e5\"><path d=\"M10 22.785q-1.125 0-1.773.602-.641.601-.641 1.656t.64 1.656q.649.602 1.774.602t1.773-.602q.649-.61.649-1.656 0-1.055-.649-1.656-.64-.602-1.773-.602zm-1.578-.672q-1.016-.25-1.586-.945-.563-.695-.563-1.695 0-1.399.993-2.211 1-.813 2.734-.813 1.742 0 2.734.813.993.812.993 2.21 0 1-.57 1.696-.563.695-1.571.945 1.14.266 1.773 1.04.641.773.641 1.89 0 1.695-1.04 2.602-1.03.906-2.96.906t-2.969-.906Q6 26.738 6 25.043q0-1.117.64-1.89.641-.774 1.782-1.04zm-.578-2.492q0 .906.562 1.414.57.508 1.594.508 1.016 0 1.586-.508.578-.508.578-1.414 0-.906-.578-1.414-.57-.508-1.586-.508-1.023 0-1.594.508-.562.508-.562 1.414z\" \/><\/g><\/svg>\n<div class=\"diagram-caption\">29.b5# \u2014 le roi noir, d\u00e9busqu\u00e9 d\u00e8s le 17\u1d49 coup, est mat\u00e9 \u00e0 l'autre bout de l'\u00e9chiquier, en a6, cern\u00e9 par la dame, le fou et son propre pion b6.<\/div>\n<\/div>\n<div class=\"movetext\">1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.O-O Nxe4 5.Re1 Nd6 6.Nxe5 Nxe5 7.Rxe5+ Be7 8.Bf1 O-O 9.d4 Bf6 10.Rh5 Re8 11.Nc3 Ne4 12.Nxe4 Rxe4 13.Bd3 Rxd4 14.c3 g6 15.cxd4 gxh5 16.Qxh5 d5 17.Qxh7+ Kf8 18.Bh6+ Ke7 19.Re1+ Be6 20.Bf5 Kd6 21.Bf4+ Kc6 22.Bxe6 Bxd4 23.Rc1+ Bc5 24.b4 b6 25.Qxf7 a5 26.Bxc7 Qg5 27.Qd7+ Kb7 28.Bf4+ Ka6 29.b5#<\/div>\n\n<h3 class=\"game-title\">2. Le double sacrifice de tour<\/h3>\n<p class=\"game-sub\">Fidelity Par Excellence (B) 73 MHz (blancs) \u2014 Saitek Simultano (ver. B) (noirs), gauntlet CB-Emu, 2026 &middot; Sicilienne &middot; 1\u20130 en 28 coups<\/p>\n<p>Partie beaucoup plus tranchante : apr\u00e8s une Sicilienne ferm\u00e9e, le Par Excellence engage <strong>20.Rf6!?<\/strong> \u2014 une offre de tour sur une case d\u00e9fendue par rien d'autre que son propre culot. Les noirs refusent de prendre imm\u00e9diatement (20...c4) et le Par Excellence hausse les ench\u00e8res avec <strong>21.Rxe6!<\/strong>, mangeant carr\u00e9ment un fou. Un deuxi\u00e8me coup de tour suit bient\u00f4t : apr\u00e8s 22...g6, <strong>23.Rxg6+!!<\/strong> sacrifie la seconde tour pour arracher le roque noir \u00e0 son abri.<\/p>\n<div class=\"diagram-wrap\">\n<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" version=\"1.1\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" viewBox=\"0 0 390 390\" width=\"430\" height=\"430\"><style>\n.square.light { fill: #f0e4d0; }\n.square.dark { fill: #b58b63; }\n.square.light.lastmove { fill: #f4f27a; }\n.square.dark.lastmove { fill: #d4c130; }\n.coord { fill: #6b5a48; font-size: 13px; }\n<\/style><defs><g id=\"white-pawn-b2\" class=\"white pawn\"><path d=\"M22 9c-2.21 0-4 1.79-4 4 0 .89.29 1.71.78 2.38-1.95 1.12-3.28 3.21-3.28 5.62 0 2.03.94 3.84 2.41 5.03-3 1.06-7.41 5.55-7.41 13.47h23c0-7.92-4.41-12.41-7.41-13.47 1.47-1.19 2.41-3 2.41-5.03 0-2.41-1.33-4.5-3.28-5.62.49-.67.78-1.49.78-2.38 0-2.21-1.79-4-4-4z\" fill=\"#fff\" stroke=\"#000\" stroke-width=\"1.5\" stroke-linecap=\"round\" \/><\/g><g 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1.774.602t1.773-.602q.649-.61.649-1.656 0-1.055-.649-1.656-.64-.602-1.773-.602zm-1.578-.672q-1.016-.25-1.586-.945-.563-.695-.563-1.695 0-1.399.993-2.211 1-.813 2.734-.813 1.742 0 2.734.813.993.812.993 2.21 0 1-.57 1.696-.563.695-1.571.945 1.14.266 1.773 1.04.641.773.641 1.89 0 1.695-1.04 2.602-1.03.906-2.96.906t-2.969-.906Q6 26.738 6 25.043q0-1.117.64-1.89.641-.774 1.782-1.04zm-.578-2.492q0 .906.562 1.414.57.508 1.594.508 1.016 0 1.586-.508.578-.508.578-1.414 0-.906-.578-1.414-.57-.508-1.586-.508-1.023 0-1.594.508-.562.508-.562 1.414z\" \/><\/g><g transform=\"translate(375, 20) scale(0.75, 0.75)\" fill=\"#e5e5e5\" stroke=\"#e5e5e5\"><path d=\"M10 22.785q-1.125 0-1.773.602-.641.601-.641 1.656t.64 1.656q.649.602 1.774.602t1.773-.602q.649-.61.649-1.656 0-1.055-.649-1.656-.64-.602-1.773-.602zm-1.578-.672q-1.016-.25-1.586-.945-.563-.695-.563-1.695 0-1.399.993-2.211 1-.813 2.734-.813 1.742 0 2.734.813.993.812.993 2.21 0 1-.57 1.696-.563.695-1.571.945 1.14.266 1.773 1.04.641.773.641 1.89 0 1.695-1.04 2.602-1.03.906-2.96.906t-2.969-.906Q6 26.738 6 25.043q0-1.117.64-1.89.641-.774 1.782-1.04zm-.578-2.492q0 .906.562 1.414.57.508 1.594.508 1.016 0 1.586-.508.578-.508.578-1.414 0-.906-.578-1.414-.57-.508-1.586-.508-1.023 0-1.594.508-.562.508-.562 1.414z\" \/><\/g><line x1=\"307.5\" y1=\"127.5\" x2=\"307.5\" y2=\"120.75\" stroke=\"#888\" stroke-width=\"9.0\" opacity=\"0.5\" stroke-linecap=\"butt\" class=\"arrow\" \/><polygon points=\"307.5,87.0 290.625,120.75 324.375,120.75\" fill=\"#888\" opacity=\"0.5\" class=\"arrow\" \/><\/svg>\n<div class=\"diagram-caption\">Position apr\u00e8s 23.Rxg6+ \u2014 deux tours offertes en trois coups pour d\u00e9truire le rempart de pions devant le roi noir.<\/div>\n<\/div>\n<p>23...hxg6 24.Nf6+! Kh8 et la m\u00e9canique se referme : 25.Qh3 force la dame noire \u00e0 intervenir (25...De1+), mais apr\u00e8s 26.Rxe1, le roi noir n'a plus aucune case. Stockfish, qui \u00e9valuait la position \u00e0 -1,66 (l\u00e9ger avantage noir) juste avant 20.Rf6, confirme qu'au terme de la s\u00e9quence, les blancs ont un <strong>mat forc\u00e9 en quatre coups<\/strong> \u2014 ce double sacrifice de tour n'\u00e9tait donc pas un pari hasardeux mais une combinaison saine de bout en bout.<\/p>\n<div class=\"diagram-wrap\">\n<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" version=\"1.1\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" viewBox=\"0 0 390 390\" width=\"430\" height=\"430\"><style>\n.square.light { fill: #f0e4d0; }\n.square.dark { fill: #b58b63; }\n.square.light.lastmove { fill: #f4f27a; }\n.square.dark.lastmove { fill: #d4c130; }\n.coord { fill: #6b5a48; font-size: 13px; }\n<\/style><defs><g id=\"white-pawn-b3\" class=\"white pawn\"><path d=\"M22 9c-2.21 0-4 1.79-4 4 0 .89.29 1.71.78 2.38-1.95 1.12-3.28 3.21-3.28 5.62 0 2.03.94 3.84 2.41 5.03-3 1.06-7.41 5.55-7.41 13.47h23c0-7.92-4.41-12.41-7.41-13.47 1.47-1.19 2.41-3 2.41-5.03 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1.773 1.04.641.773.641 1.89 0 1.695-1.04 2.602-1.03.906-2.96.906t-2.969-.906Q6 26.738 6 25.043q0-1.117.64-1.89.641-.774 1.782-1.04zm-.578-2.492q0 .906.562 1.414.57.508 1.594.508 1.016 0 1.586-.508.578-.508.578-1.414 0-.906-.578-1.414-.57-.508-1.586-.508-1.023 0-1.594.508-.562.508-.562 1.414z\" \/><\/g><g transform=\"translate(375, 20) scale(0.75, 0.75)\" fill=\"#e5e5e5\" stroke=\"#e5e5e5\"><path d=\"M10 22.785q-1.125 0-1.773.602-.641.601-.641 1.656t.64 1.656q.649.602 1.774.602t1.773-.602q.649-.61.649-1.656 0-1.055-.649-1.656-.64-.602-1.773-.602zm-1.578-.672q-1.016-.25-1.586-.945-.563-.695-.563-1.695 0-1.399.993-2.211 1-.813 2.734-.813 1.742 0 2.734.813.993.812.993 2.21 0 1-.57 1.696-.563.695-1.571.945 1.14.266 1.773 1.04.641.773.641 1.89 0 1.695-1.04 2.602-1.03.906-2.96.906t-2.969-.906Q6 26.738 6 25.043q0-1.117.64-1.89.641-.774 1.782-1.04zm-.578-2.492q0 .906.562 1.414.57.508 1.594.508 1.016 0 1.586-.508.578-.508.578-1.414 0-.906-.578-1.414-.57-.508-1.586-.508-1.023 0-1.594.508-.562.508-.562 1.414z\" \/><\/g><\/svg>\n<div class=\"diagram-caption\">28.Dxh4# \u2014 apr\u00e8s deux tours sacrifi\u00e9es, c'est finalement le cavalier (Nf6+) et le fou (Bxf8+) qui ouvrent la voie \u00e0 la dame pour le mat final.<\/div>\n<\/div>\n<div class=\"movetext\">1.e4 c5 2.Nc3 Nc6 3.Nf3 e5 4.Bc4 Be7 5.d3 d6 6.Nd2 a6 7.Nf1 Nf6 8.a4 Bg4 9.f3 Be6 10.Ng3 d5 11.exd5 Nxd5 12.Nf5 Bxf5 13.Bxd5 Qb6 14.Be4 Bxe4 15.fxe4 Qa5 16.O-O O-O 17.Qg4 Nd4 18.Bh6 Ne6 19.Nd5 Bd6 20.Rf6 c4 21.Rxe6 Bc5+ 22.Kh1 g6 23.Rxg6+ hxg6 24.Nf6+ Kh8 25.Qh3 Qe1+ 26.Rxe1 Bf2 27.Bxf8+ Bh4 28.Qxh4#<\/div>\n\n<h3 class=\"game-title\">3. Le retournement par les cavaliers<\/h3>\n<p class=\"game-sub\">Saitek Simultano (ver. B) (blancs) \u2014 Fidelity Par Excellence (B) 73 MHz (noirs), gauntlet CB-Emu, 2026 &middot; Gambit Dame refus\u00e9 &middot; 0\u20131 en 27 coups<\/p>\n<p>La plus belle des trois, parce que le Par Excellence y joue les noirs dans une position objectivement perdante : juste avant la combinaison, Stockfish cr\u00e9ditait les blancs de <strong>+2,67<\/strong> \u2014 un net avantage. C'est pourtant l\u00e0 que le v\u00e9t\u00e9ran de 1986 sort son va-tout : <strong>20...Nxh3+!<\/strong>, un premier sacrifice de cavalier qui fissure le roque blanc, suivi de 21...Ng5 et surtout du second sacrifice, <strong>24...Nxf3+!!<\/strong>, qui arrache la d\u00e9fense du roi blanc.<\/p>\n<div class=\"diagram-wrap\">\n<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" version=\"1.1\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" viewBox=\"0 0 390 390\" width=\"430\" height=\"430\"><style>\n.square.light { fill: #f0e4d0; }\n.square.dark { fill: #b58b63; }\n.square.light.lastmove { fill: #f4f27a; }\n.square.dark.lastmove { fill: #d4c130; }\n.coord { fill: #6b5a48; font-size: 13px; }\n<\/style><defs><g id=\"white-pawn-b4\" class=\"white pawn\"><path d=\"M22 9c-2.21 0-4 1.79-4 4 0 .89.29 1.71.78 2.38-1.95 1.12-3.28 3.21-3.28 5.62 0 2.03.94 3.84 2.41 5.03-3 1.06-7.41 5.55-7.41 13.47h23c0-7.92-4.41-12.41-7.41-13.47 1.47-1.19 2.41-3 2.41-5.03 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1.266.352z\" \/><\/g><g transform=\"translate(0, 290) scale(0.75, 0.75)\" fill=\"#e5e5e5\" stroke=\"#e5e5e5\"><path d=\"M6.25 16.66h7.5v.672L9.516 28.324H7.867l3.985-10.336H6.25z\" \/><\/g><g transform=\"translate(375, 290) scale(0.75, 0.75)\" fill=\"#e5e5e5\" stroke=\"#e5e5e5\"><path d=\"M6.25 16.66h7.5v.672L9.516 28.324H7.867l3.985-10.336H6.25z\" \/><\/g><g transform=\"translate(0, 335) scale(0.75, 0.75)\" fill=\"#e5e5e5\" stroke=\"#e5e5e5\"><path d=\"M10 22.785q-1.125 0-1.773.602-.641.601-.641 1.656t.64 1.656q.649.602 1.774.602t1.773-.602q.649-.61.649-1.656 0-1.055-.649-1.656-.64-.602-1.773-.602zm-1.578-.672q-1.016-.25-1.586-.945-.563-.695-.563-1.695 0-1.399.993-2.211 1-.813 2.734-.813 1.742 0 2.734.813.993.812.993 2.21 0 1-.57 1.696-.563.695-1.571.945 1.14.266 1.773 1.04.641.773.641 1.89 0 1.695-1.04 2.602-1.03.906-2.96.906t-2.969-.906Q6 26.738 6 25.043q0-1.117.64-1.89.641-.774 1.782-1.04zm-.578-2.492q0 .906.562 1.414.57.508 1.594.508 1.016 0 1.586-.508.578-.508.578-1.414 0-.906-.578-1.414-.57-.508-1.586-.508-1.023 0-1.594.508-.562.508-.562 1.414z\" \/><\/g><g transform=\"translate(375, 335) scale(0.75, 0.75)\" fill=\"#e5e5e5\" stroke=\"#e5e5e5\"><path d=\"M10 22.785q-1.125 0-1.773.602-.641.601-.641 1.656t.64 1.656q.649.602 1.774.602t1.773-.602q.649-.61.649-1.656 0-1.055-.649-1.656-.64-.602-1.773-.602zm-1.578-.672q-1.016-.25-1.586-.945-.563-.695-.563-1.695 0-1.399.993-2.211 1-.813 2.734-.813 1.742 0 2.734.813.993.812.993 2.21 0 1-.57 1.696-.563.695-1.571.945 1.14.266 1.773 1.04.641.773.641 1.89 0 1.695-1.04 2.602-1.03.906-2.96.906t-2.969-.906Q6 26.738 6 25.043q0-1.117.64-1.89.641-.774 1.782-1.04zm-.578-2.492q0 .906.562 1.414.57.508 1.594.508 1.016 0 1.586-.508.578-.508.578-1.414 0-.906-.578-1.414-.57-.508-1.586-.508-1.023 0-1.594.508-.562.508-.562 1.414z\" \/><\/g><line x1=\"127.5\" y1=\"127.5\" x2=\"64.54683438038543\" y2=\"64.54683438038543\" stroke=\"#888\" stroke-width=\"9.0\" opacity=\"0.5\" stroke-linecap=\"butt\" class=\"arrow\" \/><polygon points=\"40.68198051533946,40.68198051533946 52.61440744786245,76.47926131290842 76.47926131290842,52.61440744786245\" fill=\"#888\" opacity=\"0.5\" class=\"arrow\" \/><\/svg>\n<div class=\"diagram-caption\">Position apr\u00e8s 24...Nxf3+ \u2014 le second cavalier se jette dans la gueule du loup pour d\u00e9gager la diagonale de la dame noire vers g3 puis h2.<\/div>\n<\/div>\n<p>25.Kh1 Qxg3! (la dame s'invite \u00e0 son tour, mena\u00e7ant un mat imm\u00e9diat) 26.Bxf7+ Kf8 27.fxg3 et c'est finalement la tour, rest\u00e9e patiemment post\u00e9e en d2 depuis le 23\u1d49 coup, qui porte le coup de gr\u00e2ce : <strong>27...Rh2#<\/strong>. Stockfish confirme qu'apr\u00e8s 24...Nxf3+, les noirs ont un mat forc\u00e9 en cinq coups (#-5) \u2014 une position o\u00f9 les blancs \u00e9taient mieux quelques coups plus t\u00f4t se retrouve mat\u00e9e net, la signature d'une vraie combinaison et non d'un coup de chance.<\/p>\n<div class=\"diagram-wrap\">\n<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" version=\"1.1\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" viewBox=\"0 0 390 390\" width=\"430\" height=\"430\"><style>\n.square.light { fill: #f0e4d0; }\n.square.dark { fill: #b58b63; }\n.square.light.lastmove { fill: #f4f27a; }\n.square.dark.lastmove { fill: #d4c130; }\n.coord { fill: #6b5a48; font-size: 13px; }\n<\/style><defs><g id=\"white-pawn-b5\" class=\"white pawn\"><path d=\"M22 9c-2.21 0-4 1.79-4 4 0 .89.29 1.71.78 2.38-1.95 1.12-3.28 3.21-3.28 5.62 0 2.03.94 3.84 2.41 5.03-3 1.06-7.41 5.55-7.41 13.47h23c0-7.92-4.41-12.41-7.41-13.47 1.47-1.19 2.41-3 2.41-5.03 0-2.41-1.33-4.5-3.28-5.62.49-.67.78-1.49.78-2.38 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0-1.594.508-.562.508-.562 1.414z\" \/><\/g><\/svg>\n<div class=\"diagram-caption\">27...Th2# \u2014 la tour, oubli\u00e9e en d2 depuis plusieurs coups, referme le filet pendant que les deux fous et la dame blanche restent spectateurs \u00e0 l'autre bout de l'\u00e9chiquier.<\/div>\n<\/div>\n<div class=\"movetext\">1.d4 d5 2.c4 e6 3.Nc3 c6 4.e4 dxe4 5.Nxe4 Bb4+ 6.Bd2 Qxd4 7.Bxb4 Qxe4+ 8.Be2 Na6 9.Ba5 b6 10.Bc3 Nf6 11.Bxf6 gxf6 12.Nf3 Bb7 13.O-O Rd8 14.Qe1 Qc2 15.b3 Nc5 16.h3 Rg8 17.Nh4 Nd3 18.Qd1 Qc3 19.Qb1 Nf4 20.Bf3 Nxh3+ 21.Kh2 Ng5 22.Bh5 Qe5+ 23.g3 Rd2 24.Nf3 Nxf3+ 25.Kh1 Qxg3 26.Bxf7+ Kf8 27.fxg3 Rh2#<\/div>\n\n<h2>En r\u00e9sum\u00e9<\/h2>\n<p>Changer uniquement l'horloge d'un 65C02 de 1986, sans toucher une ligne de code, suffit \u00e0 faire gagner <strong>351 Elo<\/strong> au Par Excellence et \u00e0 le faire jouer, de fa\u00e7on mesurable et reproductible sur 257 parties, des combinaisons qui tiennent la route face \u00e0 Stockfish. La pratique n'est pas neuve \u2014 les collectionneurs de d\u00e9di\u00e9s poussent leurs 65C02 depuis longtemps jusqu'\u00e0 16 MHz et au-del\u00e0 \u2014 mais elle manquait d'une mesure Elo rigoureuse : c'est ce que ce gauntlet apporte.<\/p>\n<div class=\"naum-note-box\">Le fichier PGN complet du gauntlet (257 parties) et le d\u00e9tail de l'\u00e9chelle d'adversaires sont disponibles sur demande pour qui voudrait rejouer ou v\u00e9rifier ces parties.<\/div>\n\n<h2>Sources<\/h2>\n<ul class=\"sources\">\n<li><a href=\"https:\/\/www.chessprogramming.org\/Par_Excellence\" target=\"_blank\" rel=\"noopener\">Chess Programming Wiki \u2014 Par Excellence<\/a> (processeur, programmeurs, cote USCF\/SSDF d'origine)<\/li>\n<li><a href=\"https:\/\/www.schach-computer.info\/wiki\/index.php\/Fidelity_Par_Excellence\" target=\"_blank\" rel=\"noopener\">schach-computer.info \u2014 Fidelity Par Excellence<\/a> (fiche technique du mod\u00e8le 6083)<\/li>\n<li><a href=\"https:\/\/www.schachcomputer.info\/forum\/showthread.php?t=5239\" target=\"_blank\" rel=\"noopener\">schachcomputer.info \u2014 \u00ab Par Excellence 16 MHz \u2013 Super Constellation 18 MHz \u00bb<\/a> (trace d'une partie de tournoi amateur entre d\u00e9di\u00e9s acc\u00e9l\u00e9r\u00e9s)<\/li>\n<\/ul>\n\n<footer>Laboratoire CB-Emu &middot; chess.lumn.eu &middot; analyse g\u00e9n\u00e9r\u00e9e \u00e0 partir du gauntlet en \u00e9chelle du 29\/09\u201303\/10\/2026, v\u00e9rifi\u00e9e avec Stockfish 16 (profondeur 20).<\/footer>\n\n<\/div>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Laboratoire CB-Emu &middot; Acc\u00e9l\u00e9ration d&#8217;engine Fidelity Par Excellence \u00e0 73 MHz : le Sargon de 1986 change de braquet Un 65C02 cadenc\u00e9 \u00e0 5 MHz en 1986, rejou\u00e9 \u00e0 73 MHz sous \u00e9mulation MAME \u2014 m\u00eame ROM, m\u00eame livre, m\u00eame logique de jeu, seulement l&#8217;horloge qui change. R\u00e9sultat : pr\u00e8s de 350 points Elo gagn\u00e9s&hellip;&nbsp;<a href=\"https:\/\/www.chess.lumn.eu\/wordpress\/2026\/10\/03\/fidelity-par-excellence-73-mhz-le-choc-des-cadences\/\" class=\"\" rel=\"bookmark\">Read More &raquo;<span class=\"screen-reader-text\">Fidelity Par Excellence 73 MHz : le choc des cadences<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":43,"comment_status":"closed","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\/2018\/01\/FidelityParExcellence_01-e1583421391595.jpg",1619,1080,false],"landscape":["https:\/\/www.chess.lumn.eu\/wordpress\/wp-content\/uploads\/2018\/01\/FidelityParExcellence_01-e1583421391595.jpg",1619,1080,false],"portraits":["https:\/\/www.chess.lumn.eu\/wordpress\/wp-content\/uploads\/2018\/01\/FidelityParExcellence_01-e1583421391595.jpg",1619,1080,false],"thumbnail":["https:\/\/www.chess.lumn.eu\/wordpress\/wp-content\/uploads\/2018\/01\/FidelityParExcellence_01-150x150.jpg",150,150,true],"medium":["https:\/\/www.chess.lumn.eu\/wordpress\/wp-content\/uploads\/2018\/01\/FidelityParExcellence_01-300x200.jpg",300,200,true],"large":["https:\/\/www.chess.lumn.eu\/wordpress\/wp-content\/uploads\/2018\/01\/FidelityParExcellence_01-1024x683.jpg",1024,683,true],"1536x1536":["https:\/\/www.chess.lumn.eu\/wordpress\/wp-content\/uploads\/2018\/01\/FidelityParExcellence_01-e1583421391595.jpg",1536,1025,false],"2048x2048":["https:\/\/www.chess.lumn.eu\/wordpress\/wp-content\/uploads\/2018\/01\/FidelityParExcellence_01-e1583421391595.jpg",1619,1080,false],"neve-blog":["https:\/\/www.chess.lumn.eu\/wordpress\/wp-content\/uploads\/2018\/01\/FidelityParExcellence_01-e1583421391595.jpg",930,620,false]},"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":"Laboratoire CB-Emu &middot; Acc\u00e9l\u00e9ration d&#8217;engine Fidelity Par Excellence \u00e0 73 MHz : le Sargon de 1986 change de braquet Un 65C02 cadenc\u00e9 \u00e0 5 MHz en 1986, rejou\u00e9 \u00e0 73 MHz sous \u00e9mulation MAME \u2014 m\u00eame ROM, m\u00eame livre, m\u00eame logique de jeu, seulement l&#8217;horloge qui change. R\u00e9sultat : pr\u00e8s de 350 points Elo gagn\u00e9s&hellip;&nbsp;Read&hellip;","_links":{"self":[{"href":"https:\/\/www.chess.lumn.eu\/wordpress\/wp-json\/wp\/v2\/posts\/4210"}],"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=4210"}],"version-history":[{"count":22,"href":"https:\/\/www.chess.lumn.eu\/wordpress\/wp-json\/wp\/v2\/posts\/4210\/revisions"}],"predecessor-version":[{"id":4498,"href":"https:\/\/www.chess.lumn.eu\/wordpress\/wp-json\/wp\/v2\/posts\/4210\/revisions\/4498"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.chess.lumn.eu\/wordpress\/wp-json\/wp\/v2\/media\/43"}],"wp:attachment":[{"href":"https:\/\/www.chess.lumn.eu\/wordpress\/wp-json\/wp\/v2\/media?parent=4210"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.chess.lumn.eu\/wordpress\/wp-json\/wp\/v2\/categories?post=4210"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.chess.lumn.eu\/wordpress\/wp-json\/wp\/v2\/tags?post=4210"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}