{"id":4643,"date":"2026-11-02T15:47:33","date_gmt":"2026-11-02T15:47:33","guid":{"rendered":"https:\/\/www.chess.lumn.eu\/wordpress\/?p=4643"},"modified":"2026-11-04T17:01:14","modified_gmt":"2026-11-04T17:01:14","slug":"novag-star-diamond-110mhz","status":"publish","type":"post","link":"https:\/\/www.chess.lumn.eu\/wordpress\/2026\/11\/02\/novag-star-diamond-110mhz\/","title":{"rendered":"Novag Star Diamond \u00e0 110 MHz"},"content":{"rendered":"\n<link rel=\"preconnect\" href=\"https:\/\/fonts.googleapis.com\">\n<link href=\"https:\/\/fonts.googleapis.com\/css2?family=DM+Serif+Display&#038;family=DM+Sans:wght@400;500;700&#038;family=JetBrains+Mono:wght@400;600&#038;display=swap\" rel=\"stylesheet\">\n<style>\n.naum-body{--creme:#f7f4ee;--encre:#2b2b2b;--rouge:#c0392b;--or:#b8863b;--trait:#e3ddd0;--gris:#6b665c;\nmax-width:860px;margin:0 auto;padding:0 0 3rem;background:var(--creme);color:var(--encre);\nfont-family:\"DM 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r=\"2.75\"><\/circle><circle cx=\"14\" cy=\"9\" r=\"2.75\"><\/circle><circle cx=\"22.5\" cy=\"8\" r=\"2.75\"><\/circle><circle cx=\"31\" cy=\"9\" r=\"2.75\"><\/circle><circle cx=\"39\" cy=\"12\" r=\"2.75\"><\/circle><\/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><path d=\"M11 38.5a35 35 1 0 0 23 0\" fill=\"none\" stroke-linecap=\"butt\"><\/path><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\"><\/path><\/g><g id=\"black-king\" class=\"black king\" fill=\"none\" fill-rule=\"evenodd\" stroke=\"#000\" stroke-width=\"1.5\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><path d=\"M22.5 11.63V6\" stroke-linejoin=\"miter\"><\/path><path d=\"M22.5 25s4.5-7.5 3-10.5c0 0-1-2.5-3-2.5s-3 2.5-3 2.5c-1.5 3 3 10.5 3 10.5\" fill=\"#000\" stroke-linecap=\"butt\" stroke-linejoin=\"miter\"><\/path><path d=\"M11.5 37c5.5 3.5 15.5 3.5 21 0v-7s9-4.5 6-10.5c-4-6.5-13.5-3.5-16 4V27v-3.5c-3.5-7.5-13-10.5-16-4-3 6 5 10 5 10V37z\" fill=\"#000\"><\/path><path d=\"M20 8h5\" stroke-linejoin=\"miter\"><\/path><path d=\"M32 29.5s8.5-4 6.03-9.65C34.15 14 25 18 22.5 24.5l.01 2.1-.01-2.1C20 18 9.906 14 6.997 19.85c-2.497 5.65 4.853 9 4.853 9M11.5 30c5.5-3 15.5-3 21 0m-21 3.5c5.5-3 15.5-3 21 0m-21 3.5c5.5-3 15.5-3 21 0\" stroke=\"#fff\"><\/path><\/g>\n<\/defs><\/svg>\n<div class=\"hero\">\n<svg class=\"hero-bg\" viewBox=\"0 0 860 320\" preserveAspectRatio=\"xMidYMid slice\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\n<defs><pattern id=\"sdgrid\" width=\"40\" height=\"40\" patternUnits=\"userSpaceOnUse\"><path d=\"M40 0H0v40\" fill=\"none\" stroke=\"#b8863b\" stroke-width=\".5\"\/><\/pattern><\/defs>\n<rect width=\"860\" height=\"320\" fill=\"url(#sdgrid)\"\/>\n<circle cx=\"200\" cy=\"160\" r=\"80\" fill=\"none\" stroke=\"#b8863b\" stroke-width=\".8\"\/>\n<circle cx=\"200\" cy=\"160\" r=\"50\" fill=\"none\" stroke=\"#b8863b\" stroke-width=\".5\"\/>\n<line x1=\"280\" y1=\"160\" x2=\"400\" y2=\"160\" stroke=\"#b8863b\" stroke-width=\".5\"\/>\n<circle cx=\"640\" cy=\"100\" r=\"40\" fill=\"none\" stroke=\"#c0392b\" stroke-width=\".6\"\/>\n<line x1=\"680\" y1=\"100\" x2=\"780\" y2=\"100\" stroke=\"#c0392b\" stroke-width=\".4\"\/>\n<\/svg>\n<div class=\"hero-content\">\n<p class=\"eyebrow\">Laboratoire \u00b7 acc\u00e9l\u00e9ration<\/p>\n<h1 class=\"titre\">Novag Star Diamond \u00e0 110&nbsp;MHz<\/h1>\n<p class=\"sous-titre\">Gauntlet acc\u00e9l\u00e9r\u00e9 CB-Emu&nbsp;: le programme de David Kittinger, quatre fois plus vite<\/p>\n<div class=\"hero-machine\">\n<div class=\"hero-svg-wrap\">\n<svg viewBox=\"0 0 220 175\" width=\"220\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" role=\"img\" aria-label=\"Novag Star Diamond, dessin stylis\u00e9\">\n<rect x=\"12\" y=\"8\" width=\"196\" height=\"160\" rx=\"5\" fill=\"#5a3a22\" stroke=\"#2c1b10\" stroke-width=\"1.2\"\/>\n<rect x=\"20\" y=\"15\" width=\"118\" height=\"118\" fill=\"#2c1b10\"\/>\n<g><defs><pattern id=\"sdck\" x=\"22\" y=\"17\" width=\"28.5\" height=\"28.5\" patternUnits=\"userSpaceOnUse\"><rect width=\"28.5\" height=\"28.5\" fill=\"#efe6d2\"\/><rect x=\"14.25\" width=\"14.25\" height=\"14.25\" fill=\"#b58a5a\"\/><rect y=\"14.25\" width=\"14.25\" height=\"14.25\" fill=\"#b58a5a\"\/><\/pattern><\/defs><rect x=\"22\" y=\"17\" width=\"114\" height=\"114\" fill=\"url(#sdck)\"\/><\/g>\n<rect x=\"144\" y=\"15\" width=\"56\" height=\"118\" rx=\"2\" fill=\"#241912\"\/>\n<rect x=\"150\" y=\"22\" width=\"44\" height=\"26\" rx=\"2\" fill=\"#93a682\"\/>\n<text x=\"172\" y=\"33\" text-anchor=\"middle\" font-family=\"'JetBrains Mono',monospace\" font-size=\"6.5\" fill=\"#1f281b\">Dhg7#<\/text>\n<text x=\"172\" y=\"43\" text-anchor=\"middle\" font-family=\"'JetBrains Mono',monospace\" font-size=\"5.5\" fill=\"#2c3826\">110 MHz<\/text>\n<defs><pattern id=\"sdtk\" x=\"150\" y=\"56\" width=\"16\" height=\"12\" patternUnits=\"userSpaceOnUse\"><rect width=\"11\" height=\"7\" rx=\"1.5\" fill=\"#3a2c22\" stroke=\"#5a4636\" stroke-width=\".4\"\/><\/pattern><\/defs><rect x=\"150\" y=\"56\" width=\"48\" height=\"48\" fill=\"url(#sdtk)\"\/><rect x=\"150\" y=\"104\" width=\"27\" height=\"8\" fill=\"url(#sdtk)\"\/>\n<circle cx=\"190\" cy=\"124\" r=\"2.2\" fill=\"#c0392b\"\/><circle cx=\"190\" cy=\"124\" r=\"4.5\" fill=\"#c0392b\" opacity=\".15\"\/>\n<rect x=\"20\" y=\"139\" width=\"180\" height=\"22\" rx=\"2\" fill=\"#241912\"\/>\n<text x=\"28\" y=\"153\" font-family=\"'DM Serif Display',Georgia,serif\" font-size=\"9.5\" fill=\"#b8863b\" letter-spacing=\".5\">NOVAG<\/text>\n<text x=\"66\" y=\"153\" font-family=\"'DM Sans',sans-serif\" font-size=\"7\" fill=\"#a09882\" letter-spacing=\"1.2\">STAR DIAMOND<\/text>\n<text x=\"196\" y=\"153\" text-anchor=\"end\" font-family=\"'JetBrains Mono',monospace\" font-size=\"6\" fill=\"#6b665c\">H8 \u00b7 \u00d74,3<\/text>\n<\/svg>\n<\/div>\n<div class=\"hero-specs\">\n<div class=\"spec\"><div class=\"sv\">2359<\/div><div class=\"sl\">Elo \u00b128<\/div><\/div>\n<div class=\"spec\"><div class=\"sv\">\u00d74,3<\/div><div class=\"sl\">25 \u2192 110 MHz<\/div><\/div>\n<div class=\"spec\"><div class=\"sv\">162<\/div><div class=\"sl\">parties<\/div><\/div>\n<div class=\"spec\"><div class=\"sv\">+133<\/div><div class=\"sl\">gain vs base<\/div><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n\n<div class=\"article-body\">\n\n<div class=\"badge\">Gauntlet termin\u00e9 \u00b7 2 novembre 2026 \u00b7 vitesse contr\u00f4l\u00e9e<\/div>\n\n<p class=\"chapeau\">La Novag Star Diamond (2003) fait tourner le programme de David Kittinger sur un processeur Hitachi H8 \u00e0 25&nbsp;MHz. \u00c9mul\u00e9e par CB-Emu (MessChess\/MAME), elle est ici acc\u00e9l\u00e9r\u00e9e \u00d74,30 (80&nbsp;% du maximum mesur\u00e9 sur le PC h\u00f4te), soit 107,5&nbsp;MHz, arrondis \u00e0 110. Un gauntlet en \u00e9chelle l&#8217;a oppos\u00e9e \u00e0 27&nbsp;adversaires cot\u00e9s de 2176 \u00e0 2424. R\u00e9sultat&nbsp;: <strong>2359 \u00b128 sur 162 parties<\/strong>, soit 133&nbsp;points de plus que la Star Diamond d&#8217;origine (2226). C&#8217;est aussi le premier gauntlet acc\u00e9l\u00e9r\u00e9 du laboratoire dont la vitesse a \u00e9t\u00e9 contr\u00f4l\u00e9e partie par partie. Et une partie \u00e0 retenir&nbsp;: une victoire contre le Stockfish&nbsp;68020 du laboratoire, conclue par une sous-promotion.<\/p>\n\n<div class=\"chiffre-cle\">\n<div class=\"cc\"><div class=\"val\">2359<\/div><div class=\"lab\">Elo, 162 parties<\/div><\/div>\n<div class=\"cc\"><div class=\"val\">+133<\/div><div class=\"lab\">sur la Star Diamond d&#8217;origine (2226)<\/div><\/div>\n<div class=\"cc\"><div class=\"val\">56,8 %<\/div><div class=\"lab\">score (92 \/ 162)<\/div><\/div>\n<div class=\"cc\"><div class=\"val\">63<\/div><div class=\"lab\">points par doublement de fr\u00e9quence<\/div><\/div>\n<\/div>\n\n<h2 class=\"sect\">1. R\u00e9sultats d\u00e9taill\u00e9s par adversaire<\/h2>\n<div class=\"tbl-wrap\"><table>\n<thead><tr><th>Adversaire<\/th><th class=\"n\">Elo<\/th><th class=\"n\">Score<\/th><th class=\"n\">%<\/th><th class=\"n\">Perf<\/th><\/tr><\/thead>\n<tbody>\n<tr><td>Gideon 3.1 ChessMachine 150&nbsp;MHz<\/td><td class=\"n\">2424<\/td><td class=\"n\">2 \/ 6<\/td><td class=\"n\">33<\/td><td class=\"n\">2304<\/td><\/tr>\n<tr><td>Fritz 3 (Pentium 90&nbsp;MHz)<\/td><td class=\"n\">2414<\/td><td class=\"n\">1 \/ 6<\/td><td class=\"n\">17<\/td><td class=\"n\">2134<\/td><\/tr>\n<tr><td>The King 2.54 ChessMachine 32&nbsp;MHz<\/td><td class=\"n\">2397<\/td><td class=\"n\">2 \/ 6<\/td><td class=\"n\">33<\/td><td class=\"n\">2277<\/td><\/tr>\n<tr><td>Stockfish 11 (68020 16&nbsp;MHz, portage maison)<\/td><td class=\"n\">2391<\/td><td class=\"n\">1,5 \/ 6<\/td><td class=\"n\">25<\/td><td class=\"n\">2200<\/td><\/tr>\n<tr><td>MChess 1.71 (Pentium 90&nbsp;MHz)<\/td><td class=\"n\">2386<\/td><td class=\"n\">4,5 \/ 6<\/td><td class=\"n\">75<\/td><td class=\"n\">2577<\/td><\/tr>\n<tr><td>Chess Genius 5 (486DX 33&nbsp;MHz)<\/td><td class=\"n\">2377<\/td><td class=\"n\">1,5 \/ 6<\/td><td class=\"n\">25<\/td><td class=\"n\">2186<\/td><\/tr>\n<tr><td>Chess Genius 4 (486DX 33&nbsp;MHz)<\/td><td class=\"n\">2375<\/td><td class=\"n\">2 \/ 6<\/td><td class=\"n\">33<\/td><td class=\"n\">2255<\/td><\/tr>\n<tr><td>Chess Genius 2 (486DX 33&nbsp;MHz)<\/td><td class=\"n\">2373<\/td><td class=\"n\">3 \/ 6<\/td><td class=\"n\">50<\/td><td class=\"n\">2373<\/td><\/tr>\n<tr><td>Chess Genius 3 (486DX 33&nbsp;MHz)<\/td><td class=\"n\">2364<\/td><td class=\"n\">3 \/ 6<\/td><td class=\"n\">50<\/td><td class=\"n\">2364<\/td><\/tr>\n<tr><td>Mephisto Genius 68030 London<\/td><td class=\"n\">2363<\/td><td class=\"n\">4 \/ 6<\/td><td class=\"n\">67<\/td><td class=\"n\">2483<\/td><\/tr>\n<tr><td>Fruit 2.1 (ARM9 30&nbsp;MHz)<\/td><td class=\"n\">2350<\/td><td class=\"n\">3 \/ 6<\/td><td class=\"n\">50<\/td><td class=\"n\">2350<\/td><\/tr>\n<tr><td>Chess Genius 1 (486DX 33&nbsp;MHz)<\/td><td class=\"n\">2336<\/td><td class=\"n\">1,5 \/ 6<\/td><td class=\"n\">25<\/td><td class=\"n\">2145<\/td><\/tr>\n<tr><td>Gideon 3.1 ChessMachine 32&nbsp;MHz<\/td><td class=\"n\">2335<\/td><td class=\"n\">3 \/ 6<\/td><td class=\"n\">50<\/td><td class=\"n\">2335<\/td><\/tr>\n<tr><td>MChess Pro 6 (Pentium 90&nbsp;MHz)<\/td><td class=\"n\">2328<\/td><td class=\"n\">2,5 \/ 6<\/td><td class=\"n\">42<\/td><td class=\"n\">2270<\/td><\/tr>\n<tr><td>The King 2.54 ChessMachine 14&nbsp;MHz<\/td><td class=\"n\">2327<\/td><td class=\"n\">5 \/ 6<\/td><td class=\"n\">83<\/td><td class=\"n\">2607<\/td><\/tr>\n<tr><td>Mephisto Berlin Pro 68020<\/td><td class=\"n\">2315<\/td><td class=\"n\">3 \/ 6<\/td><td class=\"n\">50<\/td><td class=\"n\">2315<\/td><\/tr>\n<tr><td>MChess Pro 6 (486DX 33&nbsp;MHz)<\/td><td class=\"n\">2271<\/td><td class=\"n\">4 \/ 6<\/td><td class=\"n\">67<\/td><td class=\"n\">2391<\/td><\/tr>\n<tr><td>Fritz 1 (Pentium 90&nbsp;MHz)<\/td><td class=\"n\">2269<\/td><td class=\"n\">5,5 \/ 6<\/td><td class=\"n\">92<\/td><td class=\"n\">2686<\/td><\/tr>\n<tr><td>Fruit 2.1 (68040 40&nbsp;MHz)<\/td><td class=\"n\">2256<\/td><td class=\"n\">4 \/ 6<\/td><td class=\"n\">67<\/td><td class=\"n\">2376<\/td><\/tr>\n<tr><td>Fritz 3 (486DX 33&nbsp;MHz)<\/td><td class=\"n\">2255<\/td><td class=\"n\">3,5 \/ 6<\/td><td class=\"n\">58<\/td><td class=\"n\">2313<\/td><\/tr>\n<tr><td>Fritz 2 (Pentium 90&nbsp;MHz)<\/td><td class=\"n\">2228<\/td><td class=\"n\">4,5 \/ 6<\/td><td class=\"n\">75<\/td><td class=\"n\">2419<\/td><\/tr>\n<tr><td>Mephisto RISC II (14&nbsp;MHz)<\/td><td class=\"n\">2225<\/td><td class=\"n\">5 \/ 6<\/td><td class=\"n\">83<\/td><td class=\"n\">2505<\/td><\/tr>\n<tr><td>Rebel 9 (486DX 33&nbsp;MHz)<\/td><td class=\"n\">2224<\/td><td class=\"n\">4,5 \/ 6<\/td><td class=\"n\">75<\/td><td class=\"n\">2415<\/td><\/tr>\n<tr><td>Rebel 6 (486DX 33&nbsp;MHz)<\/td><td class=\"n\">2201<\/td><td class=\"n\">5 \/ 6<\/td><td class=\"n\">83<\/td><td class=\"n\">2481<\/td><\/tr>\n<tr><td>MChess 1.71 (486DX 33&nbsp;MHz)<\/td><td class=\"n\">2187<\/td><td class=\"n\">4,5 \/ 6<\/td><td class=\"n\">75<\/td><td class=\"n\">2378<\/td><\/tr>\n<tr><td>Fritz 2 (486DX 33&nbsp;MHz)<\/td><td class=\"n\">2180<\/td><td class=\"n\">4,5 \/ 6<\/td><td class=\"n\">75<\/td><td class=\"n\">2371<\/td><\/tr>\n<tr><td>Saitek Sparc (rev. 518)<\/td><td class=\"n\">2176<\/td><td class=\"n\">4,5 \/ 6<\/td><td class=\"n\">75<\/td><td class=\"n\">2367<\/td><\/tr>\n<tr class=\"tot\"><td>Total (adversaire moyen)<\/td><td class=\"n\">2308<\/td><td class=\"n\">92 \/ 162<\/td><td class=\"n\">57<\/td><td class=\"n\">2359<\/td><\/tr>\n<\/tbody><\/table><\/div>\n<p class=\"legende\">Cotes de la <a href=\"https:\/\/www.chess.lumn.eu\/wordpress\/2026\/10\/22\/performance-elo\/\">liste maison<\/a>, adversaires \u00e0 cote fixe (calcul du 2&nbsp;novembre 2026, 15&nbsp;h&nbsp;14). Perf&nbsp;= cote de l&#8217;adversaire + 400\u00b7log<sub>10<\/sub>(p\/(1\u2212p)). 78&nbsp;victoires, 28&nbsp;nulles, 56&nbsp;d\u00e9faites&nbsp;; 47,5\/81 avec les Blancs (58,6&nbsp;%), 44,5\/81 avec les Noirs (54,9&nbsp;%). La perf totale r\u00e9sout la somme des scores attendus contre les 27&nbsp;cotes&nbsp;; \u00b128 est l&#8217;\u00e9cart type sur 162&nbsp;parties.<\/p>\n<p>Le profil est net. Jusqu&#8217;\u00e0 2330 environ, la Star Diamond domine&nbsp;: 5\/6 contre le RISC II d&#8217;origine, Rebel&nbsp;6 et The King \u00e0 14&nbsp;MHz, 5,5\/6 contre Fritz&nbsp;1 sur Pentium&nbsp;90. Au-dessus de 2360, elle ne passe plus qu&#8217;une fois sur trois, avec deux exceptions&nbsp;: le Genius 68030 London (4\/6) et MChess&nbsp;1.71 sur Pentium&nbsp;90 (4,5\/6).<\/p>\n\n<h2 class=\"sect\">2. Ce que rapporte un doublement<\/h2>\n<p>Pour comparer des acc\u00e9l\u00e9rations diff\u00e9rentes, on rapporte le gain d&#8217;Elo au nombre de doublements de fr\u00e9quence. Avec \u00d74,30, la Star Diamond a doubl\u00e9 sa fr\u00e9quence 2,10&nbsp;fois&nbsp;: 133&nbsp;points, soit <strong>63&nbsp;points par doublement<\/strong>.<\/p>\n<div class=\"fig\"><svg viewBox=\"0 0 760 318\" role=\"img\" aria-label=\"Gain Elo par doublement de fr\u00e9quence, machines acc\u00e9l\u00e9r\u00e9es du laboratoire\" style=\"width:100%;height:auto;display:block\"><line x1=\"300.0\" y1=\"10\" x2=\"300.0\" y2=\"284\" stroke=\"#e3ddd0\" stroke-width=\"1\"\/><text x=\"300.0\" y=\"299\" text-anchor=\"middle\" font-family=\"JetBrains Mono,monospace\" font-size=\"10.5\" fill=\"#6b665c\">0<\/text><line x1=\"400.0\" y1=\"10\" x2=\"400.0\" y2=\"284\" stroke=\"#e3ddd0\" stroke-width=\"1\"\/><text x=\"400.0\" y=\"299\" text-anchor=\"middle\" font-family=\"JetBrains Mono,monospace\" font-size=\"10.5\" fill=\"#6b665c\">25<\/text><line x1=\"500.0\" y1=\"10\" x2=\"500.0\" y2=\"284\" stroke=\"#e3ddd0\" stroke-width=\"1\"\/><text x=\"500.0\" y=\"299\" text-anchor=\"middle\" font-family=\"JetBrains Mono,monospace\" font-size=\"10.5\" fill=\"#6b665c\">50<\/text><line x1=\"600.0\" y1=\"10\" x2=\"600.0\" y2=\"284\" stroke=\"#e3ddd0\" stroke-width=\"1\"\/><text x=\"600.0\" y=\"299\" text-anchor=\"middle\" font-family=\"JetBrains Mono,monospace\" font-size=\"10.5\" fill=\"#6b665c\">75<\/text><line x1=\"700.0\" y1=\"10\" x2=\"700.0\" y2=\"284\" stroke=\"#e3ddd0\" stroke-width=\"1\"\/><text x=\"700.0\" y=\"299\" text-anchor=\"middle\" font-family=\"JetBrains Mono,monospace\" font-size=\"10.5\" fill=\"#6b665c\">100<\/text><text x=\"290\" y=\"31.0\" text-anchor=\"end\" font-family=\"DM Sans,sans-serif\" font-size=\"12.5\" fill=\"#2b2b2b\">Fidelity Par Excellence 73&nbsp;MHz<\/text><rect x=\"300\" y=\"19.0\" width=\"363.0\" height=\"18\" fill=\"#cfc6b4\"\/><text x=\"669.0\" y=\"32.0\" font-family=\"JetBrains Mono,monospace\" font-size=\"11.5\" fill=\"#2b2b2b\">91<\/text><text x=\"290\" y=\"61.0\" text-anchor=\"end\" font-family=\"DM Sans,sans-serif\" font-size=\"12.5\" fill=\"#2b2b2b\">Saitek Turbo 16K 125&nbsp;MHz<\/text><rect x=\"300\" y=\"49.0\" width=\"337.1\" height=\"18\" fill=\"#cfc6b4\"\/><text x=\"643.1\" y=\"62.0\" font-family=\"JetBrains Mono,monospace\" font-size=\"11.5\" fill=\"#2b2b2b\">84<\/text><text x=\"290\" y=\"91.0\" text-anchor=\"end\" font-family=\"DM Sans,sans-serif\" font-size=\"12.5\" fill=\"#2b2b2b\">Mephisto RISC II 56&nbsp;MHz<\/text><rect x=\"300\" y=\"79.0\" width=\"300.5\" height=\"18\" fill=\"#cfc6b4\"\/><text x=\"606.5\" y=\"92.0\" font-family=\"JetBrains Mono,monospace\" font-size=\"11.5\" fill=\"#2b2b2b\">75<\/text><text x=\"290\" y=\"121.0\" text-anchor=\"end\" font-family=\"DM Sans,sans-serif\" font-size=\"12.5\" fill=\"#2b2b2b\" font-weight=\"700\">Novag Star Diamond 110&nbsp;MHz<\/text><rect x=\"300\" y=\"109.0\" width=\"252.8\" height=\"18\" fill=\"#c0392b\"\/><text x=\"558.8\" y=\"122.0\" font-family=\"JetBrains Mono,monospace\" font-size=\"11.5\" fill=\"#2b2b2b\">63<\/text><text x=\"290\" y=\"151.0\" text-anchor=\"end\" font-family=\"DM Sans,sans-serif\" font-size=\"12.5\" fill=\"#2b2b2b\">Novag Constellation Forte A 91&nbsp;MHz<\/text><rect x=\"300\" y=\"139.0\" width=\"242.7\" height=\"18\" fill=\"#b8863b\"\/><text x=\"548.7\" y=\"152.0\" font-family=\"JetBrains Mono,monospace\" font-size=\"11.5\" fill=\"#2b2b2b\">61<\/text><text x=\"290\" y=\"181.0\" text-anchor=\"end\" font-family=\"DM Sans,sans-serif\" font-size=\"12.5\" fill=\"#2b2b2b\">Saitek RISC 2500 400&nbsp;MHz<\/text><rect x=\"300\" y=\"169.0\" width=\"216.3\" height=\"18\" fill=\"#cfc6b4\"\/><text x=\"522.3\" y=\"182.0\" font-family=\"JetBrains Mono,monospace\" font-size=\"11.5\" fill=\"#2b2b2b\">54<\/text><text x=\"290\" y=\"211.0\" text-anchor=\"end\" font-family=\"DM Sans,sans-serif\" font-size=\"12.5\" fill=\"#2b2b2b\">Mephisto Berlin Pro 230&nbsp;MHz<\/text><rect x=\"300\" y=\"199.0\" width=\"199.3\" height=\"18\" fill=\"#cfc6b4\"\/><text x=\"505.3\" y=\"212.0\" font-family=\"JetBrains Mono,monospace\" font-size=\"11.5\" fill=\"#2b2b2b\">50<\/text><text x=\"290\" y=\"241.0\" text-anchor=\"end\" font-family=\"DM Sans,sans-serif\" font-size=\"12.5\" fill=\"#2b2b2b\">Psion Chess 2.13 \u00e0 1800&nbsp;MHz<\/text><rect x=\"300\" y=\"229.0\" width=\"137.4\" height=\"18\" fill=\"#cfc6b4\"\/><text x=\"443.4\" y=\"242.0\" font-family=\"JetBrains Mono,monospace\" font-size=\"11.5\" fill=\"#2b2b2b\">34<\/text><text x=\"290\" y=\"271.0\" text-anchor=\"end\" font-family=\"DM Sans,sans-serif\" font-size=\"12.5\" fill=\"#2b2b2b\">Mephisto Genius 68030 London 240&nbsp;MHz<\/text><rect x=\"300\" y=\"259.0\" width=\"71.3\" height=\"18\" fill=\"#cfc6b4\"\/><text x=\"377.3\" y=\"272.0\" font-family=\"JetBrains Mono,monospace\" font-size=\"11.5\" fill=\"#2b2b2b\">18<\/text><text x=\"500\" y=\"316\" text-anchor=\"middle\" font-family=\"DM Sans,sans-serif\" font-size=\"12\" fill=\"#6b665c\">Points Elo gagn\u00e9s par doublement de la fr\u00e9quence<\/text><\/svg><\/div>\n<div class=\"tbl-wrap\"><table>\n<thead><tr><th>Machine acc\u00e9l\u00e9r\u00e9e<\/th><th>Programme<\/th><th class=\"n\">Facteur<\/th><th class=\"n\">Doublements<\/th><th class=\"n\">Gain<\/th><th class=\"n\">Par doublement<\/th><\/tr><\/thead>\n<tbody>\n<tr><td>Fidelity Par Excellence 73&nbsp;MHz<\/td><td>Spracklen (Sargon)<\/td><td class=\"n\">\u00d714,6<\/td><td class=\"n\">3,87<\/td><td class=\"n\">+351<\/td><td class=\"n\">91<\/td><\/tr>\n<tr><td>Saitek Turbo 16K 125&nbsp;MHz<\/td><td>Kaplan &amp; Barnes<\/td><td class=\"n\">\u00d710,6<\/td><td class=\"n\">3,41<\/td><td class=\"n\">+287<\/td><td class=\"n\">84<\/td><\/tr>\n<tr><td>Mephisto RISC II 56&nbsp;MHz<\/td><td>Schr\u00f6der (Gideon 3.1)<\/td><td class=\"n\">\u00d73,99<\/td><td class=\"n\">2,00<\/td><td class=\"n\">+150<\/td><td class=\"n\">75<\/td><\/tr>\n<tr class=\"ici\"><td>Novag Star Diamond 110&nbsp;MHz<\/td><td>Kittinger<\/td><td class=\"n\">\u00d74,3<\/td><td class=\"n\">2,10<\/td><td class=\"n\">+133<\/td><td class=\"n\">63<\/td><\/tr>\n<tr><td>Novag Constellation Forte A 91&nbsp;MHz<\/td><td>Kittinger<\/td><td class=\"n\">\u00d718,2<\/td><td class=\"n\">4,19<\/td><td class=\"n\">+254<\/td><td class=\"n\">61<\/td><\/tr>\n<tr><td>Saitek RISC 2500 400&nbsp;MHz<\/td><td>de Koning<\/td><td class=\"n\">\u00d728<\/td><td class=\"n\">4,81<\/td><td class=\"n\">+260<\/td><td class=\"n\">54<\/td><\/tr>\n<tr><td>Mephisto Berlin Pro 230&nbsp;MHz<\/td><td>Lang<\/td><td class=\"n\">\u00d79,52<\/td><td class=\"n\">3,25<\/td><td class=\"n\">+162<\/td><td class=\"n\">50<\/td><\/tr>\n<tr><td>Psion Chess 2.13 \u00e0 1800&nbsp;MHz<\/td><td>Lang<\/td><td class=\"n\">\u00d7112,5<\/td><td class=\"n\">6,81<\/td><td class=\"n\">+234<\/td><td class=\"n\">34<\/td><\/tr>\n<tr><td>Mephisto Genius 68030 London 240&nbsp;MHz<\/td><td>Lang (ChessGenius)<\/td><td class=\"n\">\u00d77,26<\/td><td class=\"n\">2,86<\/td><td class=\"n\">+51<\/td><td class=\"n\">18<\/td><\/tr>\n<\/tbody><\/table><\/div>\n<p class=\"legende\">Gains publi\u00e9s dans les articles du laboratoire, chacun par rapport \u00e0 la machine d&#8217;origine. Doublements&nbsp;= log<sub>2<\/sub>(facteur).<\/p>\n<p>Le rapprochement le plus parlant est celui des deux programmes de David Kittinger. Le <a href=\"https:\/\/www.chess.lumn.eu\/wordpress\/2026\/10\/05\/novag-constellation-forte-a-91-mhz\/\">Constellation Forte A<\/a> de 1986 (6502 \u00e0 5&nbsp;MHz) gagnait 61&nbsp;points par doublement&nbsp;; la Star Diamond de 2003 (H8 \u00e0 25&nbsp;MHz) en gagne 63. Dix-sept ans, deux processeurs, plus de 400&nbsp;points d&#8217;\u00e9cart, et presque le m\u00eame rendement.<\/p>\n<p>La comparaison n&#8217;est pourtant pas \u00e0 \u00e9galit\u00e9. Le Forte A a \u00e9t\u00e9 acc\u00e9l\u00e9r\u00e9 dix-huit fois, la Star Diamond quatre fois seulement. Or le <a href=\"https:\/\/www.chess.lumn.eu\/wordpress\/2026\/10\/12\/psion-chess-2-13-286-1800-mhz\/\">Psion \u00e0 1800&nbsp;MHz<\/a> l&#8217;a montr\u00e9&nbsp;: plus on acc\u00e9l\u00e8re, moins chaque doublement rapporte. Sur les seuls deux premiers doublements, le Forte A a sans doute gagn\u00e9 plus de 61&nbsp;points par doublement. Le programme de 2003, plus fort au d\u00e9part, tire donc probablement un peu moins de la vitesse que son anc\u00eatre. Le <a href=\"https:\/\/www.chess.lumn.eu\/wordpress\/2026\/11\/02\/mephisto-risc-ii-56mhz\/\">RISC II<\/a>, acc\u00e9l\u00e9r\u00e9 dans les m\u00eames proportions (\u00d74), gagne 75&nbsp;points par doublement, 12 de plus que la Star Diamond.<\/p>\n<div class=\"retenir\"><span class=\"mot\">Ce qu&#8217;il faut retenir<\/span>\n<p>\u00c0 110&nbsp;MHz, la Star Diamond (2359) rejoint le Mephisto Genius 68030 London d&#8217;origine (2363) et talonne le RISC II \u00e0 56&nbsp;MHz (2374). Avec 63&nbsp;points par doublement, elle se place au milieu des machines acc\u00e9l\u00e9r\u00e9es du laboratoire, loin du <a href=\"https:\/\/www.chess.lumn.eu\/wordpress\/2026\/10\/25\/chess-genius-68030-240mhz\/\">Genius London \u00e0 240&nbsp;MHz<\/a>, dont le programme sature (18).<\/p>\n<\/div>\n\n<h2 class=\"sect\">3. Corroboration externe<\/h2>\n<p>La <a href=\"https:\/\/www.schach-computer.info\/wiki\/index.php\/Wiki-Elo-Liste\">Wiki-Elo-Liste<\/a> de schach-computer.info (\u00e9tat de d\u00e9cembre 2025) cote les machines r\u00e9elles. Elle ne conna\u00eet pas de Star Diamond acc\u00e9l\u00e9r\u00e9e, mais elle classe toute la lign\u00e9e H8 de Novag. La colonne \u00ab&nbsp;Aktiv&nbsp;\u00bb correspond \u00e0 des parties d&#8217;une demi-heure.<\/p>\n<div class=\"tbl-wrap\"><table>\n<thead><tr><th>Machine<\/th><th>Processeur<\/th><th class=\"n\">Wiki-Elo (Aktiv)<\/th><th class=\"n\">Liste maison<\/th><\/tr><\/thead>\n<tbody>\n<tr><td>Novag Constellation Forte A<\/td><td>6502 5&nbsp;MHz<\/td><td class=\"n\">1858<\/td><td class=\"n\">1803<\/td><\/tr>\n<tr><td>Novag Diamond \/ Sapphire<\/td><td>H8 26,6&nbsp;MHz<\/td><td class=\"n\">2142<\/td><td class=\"n\">2098<\/td><\/tr>\n<tr><td>Novag Diamond II \/ Sapphire II<\/td><td>H8 32&nbsp;MHz<\/td><td class=\"n\">2151<\/td><td class=\"n\">\u2014<\/td><\/tr>\n<tr class=\"ici\"><td>Novag Star Diamond \/ Star Sapphire<\/td><td>H8 25&nbsp;MHz<\/td><td class=\"n\">2181<\/td><td class=\"n\">2226<\/td><\/tr>\n<tr class=\"ici\"><td>Novag Star Diamond acc\u00e9l\u00e9r\u00e9e<\/td><td>H8 \u00ab&nbsp;110&nbsp;MHz&nbsp;\u00bb \u00e9mul\u00e9<\/td><td class=\"n\">\u2014<\/td><td class=\"n\">2359<\/td><\/tr>\n<tr><td>Mephisto Risc 2 (RISC II)<\/td><td>ARM2 14&nbsp;MHz<\/td><td class=\"n\">2246<\/td><td class=\"n\">2224<\/td><\/tr>\n<tr><td>Mephisto London 68030<\/td><td>68030 33&nbsp;MHz<\/td><td class=\"n\">2367<\/td><td class=\"n\">2363<\/td><\/tr>\n<\/tbody><\/table><\/div>\n<p class=\"legende\">Les deux listes n&#8217;ont ni la m\u00eame \u00e9chelle ni la m\u00eame cadence (15&nbsp;s par coup chez nous). On compare donc les \u00e9carts, pas les chiffres bruts. \u00ab&nbsp;Novag Sapphire&nbsp;\u00bb est la machine H8 \u00e0 26,6&nbsp;MHz de la liste maison.<\/p>\n<p>Les deux listes sont d&#8217;accord sur l&#8217;essentiel&nbsp;: la Star Diamond, \u00e0 25&nbsp;MHz, est la plus forte des Novag H8 de la liste, devant la Diamond II pourtant cadenc\u00e9e \u00e0 32&nbsp;MHz. C&#8217;est le programme de 2003 qui fait la diff\u00e9rence, pas l&#8217;horloge. La liste maison accentue l&#8217;\u00e9cart&nbsp;: elle place la Star Diamond 128&nbsp;points au-dessus de la Sapphire, contre 39 pour la Wiki-Elo, et la cote 45&nbsp;points plus haut que la Wiki-Elo, alors que le London a quasiment la m\u00eame cote dans les deux listes et que le RISC II est 22&nbsp;points plus bas chez nous.<\/p>\n\n<h2 class=\"sect\">4. La partie la plus spectaculaire<\/h2>\n<p class=\"eyebrow\">Gauntlet de la Star Diamond acc\u00e9l\u00e9r\u00e9e \u00b7 2 novembre 2026 \u00b7 cadence 60\/900<\/p>\n<div class=\"joueurs\"><span>Novag Star Diamond 110 MHz<b>2359<\/b><\/span><span>Stockfish 11 68020 16 MHz<b>2391<\/b><\/span><span>1-0 en 72 coups<\/span><\/div>\n<p>Contre <a href=\"https:\/\/www.chess.lumn.eu\/wordpress\/2026\/09\/29\/stockfish-11-68020-68040\/\">Stockfish&nbsp;11 sur 68020<\/a>, le portage maison du laboratoire, la Star Diamond n&#8217;a marqu\u00e9 que 1,5&nbsp;point sur 6. Voici sa victoire, et elle a tout&nbsp;: un adversaire qui s&#8217;est cru gagnant \u00e0 +7, une parade qu&#8217;il n&#8217;avait pas vue, un pion pass\u00e9 pouss\u00e9 jusqu&#8217;en d7 et une sous-promotion pour finir.<\/p>\n<div class=\"fig\"><svg viewBox=\"0 0 760 236\" role=\"img\" aria-label=\"\u00c9valuation de Stockfish 16 et de Stockfish 68020, point de vue de la Star Diamond\" style=\"width:100%;height:auto;display:block\"><rect x=\"40\" y=\"12\" width=\"708\" height=\"96.0\" fill=\"rgba(192,57,43,.06)\"\/><line x1=\"40\" y1=\"204.0\" x2=\"748\" y2=\"204.0\" stroke=\"#e3ddd0\" stroke-width=\"1\"\/><text x=\"34\" y=\"208.0\" text-anchor=\"end\" font-family=\"JetBrains Mono,monospace\" font-size=\"10.5\" fill=\"#6b665c\">-10<\/text><line x1=\"40\" y1=\"156.0\" x2=\"748\" y2=\"156.0\" stroke=\"#e3ddd0\" stroke-width=\"1\"\/><text x=\"34\" y=\"160.0\" text-anchor=\"end\" font-family=\"JetBrains Mono,monospace\" font-size=\"10.5\" fill=\"#6b665c\">-5<\/text><line x1=\"40\" 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234.5,107.2 239.4,106.8 244.4,106.6 249.4,112.3 254.4,103.5 259.4,104.4 264.4,104.2 269.4,115.2 274.3,114.7 279.3,112.1 284.3,110.8 289.3,111.8 294.3,110.8 299.3,121.0 304.3,122.2 309.2,126.6 314.2,115.8 319.2,116.1 324.2,104.1 329.2,104.6 334.2,105.1 339.2,104.7 344.1,104.4 349.1,105.2 354.1,104.1 359.1,104.9 364.1,104.6 369.1,105.3 374.1,105.1 379.0,104.9 384.0,104.3 389.0,105.1 394.0,103.2 399.0,114.4 404.0,110.7 409.0,109.2 413.9,108.8 418.9,113.2 423.9,115.2 428.9,115.2 433.9,111.2 438.9,113.1 443.9,114.3 448.8,121.2 453.8,118.8 458.8,125.3 463.8,121.3 468.8,119.6 473.8,120.6 478.8,120.9 483.7,120.1 488.7,119.7 493.7,113.1 498.7,112.2 503.7,109.1 508.7,108.3 513.7,72.8 518.6,62.5 523.6,61.2 528.6,59.9 533.6,58.7 538.6,57.8 543.6,50.8 548.6,44.7 553.5,41.7 558.5,40.2 563.5,12.0 568.5,12.0 573.5,12.0 578.5,12.0 583.5,12.0 588.5,12.0 593.4,12.0 598.4,12.0 603.4,12.0 608.4,12.0 613.4,12.0 618.4,12.0 623.4,12.0 628.3,12.0 633.3,12.0 638.3,12.0 643.3,12.0 648.3,12.0 653.3,12.0 658.3,12.0 663.2,12.0 668.2,12.0 673.2,12.0 678.2,12.0 683.2,12.0 688.2,12.0 693.2,12.0 698.1,12.0 703.1,12.0 708.1,12.0 713.1,12.0 718.1,12.0 723.1,12.0 728.1,12.0 733.0,12.0 738.0,12.0 743.0,12.0 748.0,12.0\" fill=\"none\" stroke=\"#c0392b\" stroke-width=\"2.2\"\/><line x1=\"129.7\" y1=\"12\" x2=\"129.7\" y2=\"204\" stroke=\"#b8863b\" stroke-width=\"1\" stroke-dasharray=\"2 4\"\/><text x=\"129.7\" y=\"222\" text-anchor=\"middle\" font-family=\"JetBrains Mono,monospace\" font-size=\"10.5\" fill=\"#6b665c\">10<\/text><line x1=\"229.5\" y1=\"12\" x2=\"229.5\" y2=\"204\" stroke=\"#b8863b\" stroke-width=\"1\" stroke-dasharray=\"2 4\"\/><text x=\"229.5\" y=\"222\" text-anchor=\"middle\" font-family=\"JetBrains Mono,monospace\" font-size=\"10.5\" fill=\"#6b665c\">20<\/text><line x1=\"339.2\" y1=\"12\" x2=\"339.2\" y2=\"204\" stroke=\"#b8863b\" stroke-width=\"1\" stroke-dasharray=\"2 4\"\/><text x=\"339.2\" y=\"222\" text-anchor=\"middle\" font-family=\"JetBrains Mono,monospace\" font-size=\"10.5\" fill=\"#6b665c\">31<\/text><line x1=\"508.7\" y1=\"12\" x2=\"508.7\" y2=\"204\" stroke=\"#b8863b\" stroke-width=\"1\" stroke-dasharray=\"2 4\"\/><text x=\"508.7\" y=\"222\" text-anchor=\"middle\" font-family=\"JetBrains Mono,monospace\" font-size=\"10.5\" fill=\"#6b665c\">48<\/text><line x1=\"628.3\" y1=\"12\" x2=\"628.3\" y2=\"204\" stroke=\"#b8863b\" stroke-width=\"1\" stroke-dasharray=\"2 4\"\/><text x=\"628.3\" y=\"222\" text-anchor=\"middle\" font-family=\"JetBrains Mono,monospace\" font-size=\"10.5\" fill=\"#6b665c\">60<\/text><line x1=\"748.0\" y1=\"12\" x2=\"748.0\" y2=\"204\" stroke=\"#b8863b\" stroke-width=\"1\" stroke-dasharray=\"2 4\"\/><text x=\"748.0\" y=\"222\" text-anchor=\"middle\" font-family=\"JetBrains Mono,monospace\" font-size=\"10.5\" fill=\"#6b665c\">72<\/text><text x=\"330.2\" y=\"194.9\" text-anchor=\"start\" font-family=\"DM Sans,sans-serif\" font-size=\"11.5\" fill=\"#6b665c\">Stockfish 68020&nbsp;: +7,6<\/text><text x=\"345.2\" y=\"92.6\" text-anchor=\"start\" font-family=\"DM Sans,sans-serif\" font-size=\"11.5\" fill=\"#c0392b\">31.Tf1&nbsp;!<\/text><text x=\"505.7\" y=\"86.9\" text-anchor=\"end\" font-family=\"DM Sans,sans-serif\" font-size=\"11.5\" fill=\"#c0392b\">48\u2026b5&nbsp;??<\/text><line x1=\"56\" y1=\"230\" x2=\"80\" y2=\"230\" stroke=\"#c0392b\" stroke-width=\"2.2\"\/><text x=\"86\" y=\"233.5\" font-family=\"DM Sans,sans-serif\" font-size=\"11\" fill=\"#2b2b2b\">Stockfish 16<\/text><line x1=\"176\" y1=\"230\" x2=\"200\" y2=\"230\" stroke=\"#6b665c\" stroke-width=\"1.6\" stroke-dasharray=\"4 3\"\/><text x=\"206\" y=\"233.5\" font-family=\"DM Sans,sans-serif\" font-size=\"11\" fill=\"#2b2b2b\">ce qu&#8217;affichait Stockfish 68020 (retourn\u00e9)<\/text><\/svg><\/div>\n<p class=\"legende\">Trait plein&nbsp;: \u00e9valuation de Stockfish&nbsp;16 du point de vue de la Star Diamond (Blancs) apr\u00e8s chaque demi-coup, plafonn\u00e9e \u00e0 \u00b110. Pointill\u00e9&nbsp;: l&#8217;\u00e9valuation qu&#8217;affichait Stockfish 68020 lui-m\u00eame, retourn\u00e9e au m\u00eame point de vue. La zone teint\u00e9e correspond \u00e0 l&#8217;avantage de la Star Diamond.<\/p>\n\n<h3 class=\"ssect\">Le mirage du 29<sup>e<\/sup> coup<\/h3>\n<p>Apr\u00e8s une partie anglaise tranquille, la Star Diamond se fait prendre au 27<sup>e<\/sup> coup&nbsp;: 27.Fxe4&nbsp;? ramasse un pion empoisonn\u00e9, et 27\u2026Cd2&nbsp;! fourchette la Tour b1 et le Fou e4. Stockfish&nbsp;16 donne alors \u22121,5 aux Blancs. Mais Stockfish 68020, \u00e0 16&nbsp;MHz, voit beaucoup plus grand&nbsp;: +3,27, puis <b>+7,05<\/b> apr\u00e8s 28\u2026Fg7 et <b>+7,59<\/b> apr\u00e8s 29\u2026Df7.<\/p>\n<figure class=\"diag\"><div class=\"sd2d\" data-f=\"r4rk1\/1p3qbp\/2nBb3\/pN4p1\/P2P4\/3B2P1\/2NnP2P\/QRR3K1 w - - 5 30\" data-u=\"d7f7\"><\/div><figcaption>Apr\u00e8s 29\u2026Df7&nbsp;: Stockfish 68020 s&#8217;annonce \u00e0 +7,59. Stockfish&nbsp;16 donne +0,4 aux Blancs.<\/figcaption><\/figure>\n<p>Ce gain massif n&#8217;existe pas. Apr\u00e8s 30.Fxf8 Txf8, <b>31.Tf1&nbsp;!<\/b> oppose la Tour \u00e0 la Dame sur la colonne f, et tout s&#8217;\u00e9change&nbsp;: 31\u2026Dxf1+ 32.Txf1 Txf1+ 33.Dxf1 Cxf1 34.Rxf1. L&#8217;\u00e9valuation de Stockfish 68020 tombe de +5,47 \u00e0 \u22120,50 en un seul coup, quand celle de Stockfish&nbsp;16 n&#8217;a pas boug\u00e9. Le 68020 ne calculait que 8 \u00e0 11&nbsp;demi-coups&nbsp;: la parade \u00e9tait au-del\u00e0 de son horizon.<\/p>\n\n<h3 class=\"ssect\">Le pion d et la fourchette<\/h3>\n<p>La finale de pi\u00e8ces mineures n&#8217;est pas gagn\u00e9e pour autant. La Star Diamond pousse son pion d (37.d5, puis 42.d6) au prix d&#8217;une position nettement inf\u00e9rieure&nbsp;: Stockfish&nbsp;16 descend jusqu&#8217;\u00e0 \u22121,8 au 43<sup>e<\/sup> coup. Puis les Noirs rel\u00e2chent leur prise (47\u2026Fxe4&nbsp;?!) et commettent la faute d\u00e9cisive.<\/p>\n<figure class=\"diag\"><div class=\"sd2d\" data-f=\"8\/5kN1\/3P3p\/pp5P\/4b3\/4P3\/3K4\/8 w - - 0 49\" data-u=\"b6b5\"><\/div><figcaption>Apr\u00e8s 48\u2026b5&nbsp;??&nbsp;: 49.d7&nbsp;! Re7 50.Ce6&nbsp;! Rxd7 51.Cc5+ et le Fou e4 tombe.<\/figcaption><\/figure>\n<p>Le pion d, pouss\u00e9 depuis le 37<sup>e<\/sup> coup, attire le Roi noir en d7, o\u00f9 le Cavalier le fourchette avec le Fou e4. Avec une pi\u00e8ce de plus et deux pions pass\u00e9s (e et h), la Star Diamond n&#8217;a plus qu&#8217;\u00e0 pousser. Stockfish 68020 ne comprend la situation qu&#8217;au 50<sup>e<\/sup> coup (\u22121,31), et n&#8217;en voit l&#8217;issue qu&#8217;au 61<sup>e<\/sup> (\u221259,28).<\/p>\n\n<h3 class=\"ssect\">Sous-promotion<\/h3>\n<figure class=\"diag\"><div class=\"sd2d\" data-f=\"4Q3\/6kP\/5N2\/8\/1p6\/1K6\/8\/n7 w - - 0 69\" data-u=\"a2a1n\"><\/div><figcaption>68\u2026a1=C+&nbsp;! Une Dame ou une Tour en a1 permettait un mat imm\u00e9diat&nbsp;; le Cavalier donne \u00e9chec.<\/figcaption><\/figure>\n<p>Au 68<sup>e<\/sup> coup, les deux camps vont \u00e0 Dame en m\u00eame temps. Stockfish 68020 choisit la seule promotion qui donne \u00e9chec, en Cavalier, et retarde le mat de trois coups. Apr\u00e8s 69.Ra4 Rxf6 70.h8=D+, la Star Diamond a deux Dames, et 72.Dhg7 est mat.<\/p>\n\n<h3 class=\"ssect\">Rejouer la partie<\/h3>\n<div class=\"rejeu\" id=\"sd-rejeu\">\n<div>\n<div id=\"sd-board\"><\/div>\n<div class=\"rj-ctrl\">\n<button type=\"button\" id=\"sd-deb\" aria-label=\"D\u00e9but\">\u23ee<\/button>\n<button type=\"button\" id=\"sd-prec\" aria-label=\"Coup pr\u00e9c\u00e9dent\">\u25c0<\/button>\n<button type=\"button\" id=\"sd-suiv\" aria-label=\"Coup suivant\">\u25b6<\/button>\n<button type=\"button\" id=\"sd-fin\" aria-label=\"Fin\">\u23ed<\/button>\n<span class=\"rj-pos\" id=\"sd-pos\"><\/span>\n<\/div>\n<\/div>\n<div>\n<div class=\"rj-com\" id=\"sd-com\" aria-live=\"polite\"><\/div>\n<div class=\"rj-liste\" id=\"sd-liste\"><\/div>\n<\/div>\n<\/div>\n<p class=\"legende\">Cliquez un coup, ou utilisez les fl\u00e8ches \u2190 \u2192 du clavier une fois l&#8217;\u00e9chiquier survol\u00e9. Les coups en gras sont comment\u00e9s. Sous chaque commentaire&nbsp;: l&#8217;\u00e9valuation affich\u00e9e par la machine qui vient de jouer (la Star Diamond n&#8217;en transmet pas, seulement sa profondeur), et celle de Stockfish&nbsp;16 (environ 0,8&nbsp;s par position) du point de vue de la Star Diamond.<\/p>\n\n<h2 class=\"sect\">5. Observations notables<\/h2>\n<h3 class=\"ssect\">La b\u00eate noire&nbsp;: ChessGenius sur 486<\/h3>\n<p>Contre les cinq versions de Chess Genius sur 486DX \u00e0 33&nbsp;MHz, la Star Diamond ne marque que 11\/30 (37&nbsp;%)&nbsp;: 1,5\/6 contre les versions 1 et 5, 2\/6 contre la 4, 3\/6 contre les 2 et 3. Le m\u00eame programme de Richard Lang, dans le Genius 68030 London, ne lui prend en revanche que 2&nbsp;points sur 6.<\/p>\n<h3 class=\"ssect\">Les Pentium 90, du meilleur au pire<\/h3>\n<p>Son meilleur et son pire r\u00e9sultat viennent tous deux des PC \u00e9mul\u00e9s sur Pentium&nbsp;90&nbsp;: 5,5\/6 contre Fritz&nbsp;1 (perf 2686), mais 1\/6 contre Fritz&nbsp;3 (perf 2134). MChess&nbsp;1.71 lui laisse 4,5\/6, MChess Pro&nbsp;6 seulement 2,5\/6.<\/p>\n<h3 class=\"ssect\">Face aux ChessMachine<\/h3>\n<p>5\/6 contre The King 2.54 \u00e0 14&nbsp;MHz, mais 2\/6 contre la m\u00eame carte \u00e0 32&nbsp;MHz. Contre Gideon&nbsp;3.1, 3\/6 \u00e0 32&nbsp;MHz et 2\/6 \u00e0 150&nbsp;MHz.<\/p>\n<h3 class=\"ssect\">Un livre qui varie<\/h3>\n<p>Une seule des 162&nbsp;parties est identique coup pour coup \u00e0 une autre, contre 19 pour le RISC II acc\u00e9l\u00e9r\u00e9. La biblioth\u00e8que d&#8217;ouvertures de la Star Diamond, environ 123&nbsp;000&nbsp;demi-coups selon la documentation de Novag, varie assez pour que le gauntlet ne se r\u00e9p\u00e8te presque pas.<\/p>\n\n<h2 class=\"sect\">6. M\u00e9thodologie<\/h2>\n<h3 class=\"ssect\">\u00c9mulation<\/h3>\n<p>Pilote MAME <code>sdiamond<\/code> sous MessChess, avec le greffon chessengine de CB-Emu et le relais UCI du laboratoire. La vitesse maximale de la Star Diamond sur le Ryzen&nbsp;9 7950X3D est de \u00d75,38 (m\u00e9diane de 9&nbsp;mesures de 60&nbsp;s, 8&nbsp;\u00e9mulations en parall\u00e8le, 28\/09\/2026). La version acc\u00e9l\u00e9r\u00e9e tourne \u00e0 80&nbsp;% de ce maximum, \u00d74,30&nbsp;: d&#8217;o\u00f9 les 107,5&nbsp;MHz (25&nbsp;\u00d7 4,30), annonc\u00e9s \u00ab&nbsp;110&nbsp;MHz&nbsp;\u00bb. Le relais traduit \u00e0 chaque partie la pendule de l&#8217;interface en niveau de la machine.<\/p>\n<h3 class=\"ssect\">Gauntlet<\/h3>\n<p>\u00c9chelle d&#8217;adversaires de la liste maison, 6&nbsp;parties par adversaire en alternant les couleurs, 27&nbsp;adversaires de 2176 \u00e0 2424. Cadence 60&nbsp;coups en 15&nbsp;minutes, livres propres de chaque machine, cutechess-cli, plusieurs parties en m\u00eame temps. Cote calcul\u00e9e contre les cotes fixes de la liste maison&nbsp;; la Star Diamond acc\u00e9l\u00e9r\u00e9e entrera dans le prochain calcul Ordo.<\/p>\n<div class=\"box\"><span class=\"box-titre\">Vitesse tenue&nbsp;: contr\u00f4l\u00e9e partie par partie<\/span>\n<p>Depuis le 1<sup>er<\/sup>&nbsp;novembre, le relais mesure \u00e0 chaque coup le facteur de vitesse r\u00e9ellement tenu par MAME et \u00e9crit une ligne par partie&nbsp;: m\u00e9diane, 10<sup>e<\/sup>&nbsp;centile, pire coup, nombre de coups sous 90&nbsp;% de la cible. Sur les 185&nbsp;parties jou\u00e9es, <strong>166 ont tenu la cible \u00e0 101&nbsp;% en m\u00e9diane<\/strong>.<\/p>\n<p>Deux \u00e9pisodes ressortent. Le 2&nbsp;novembre, de 7&nbsp;h&nbsp;35 \u00e0 9&nbsp;h&nbsp;03, l&#8217;\u00e9mulation est tomb\u00e9e \u00e0 79\u201385&nbsp;% de la cible (environ 87 \u00e0 94&nbsp;MHz)&nbsp;: les 15&nbsp;parties concern\u00e9es ont \u00e9t\u00e9 \u00e9cart\u00e9es et rejou\u00e9es, comme 8&nbsp;autres parties interrompues par des incidents. En fin de gauntlet, contre Gideon&nbsp;3.1 \u00e0 150&nbsp;MHz, lui-m\u00eame une \u00e9mulation tr\u00e8s acc\u00e9l\u00e9r\u00e9e, cinq parties ont jou\u00e9 une partie de leurs coups sous 90&nbsp;%, dont deux \u00e0 89\u201390&nbsp;% en m\u00e9diane. Elles ont \u00e9t\u00e9 conserv\u00e9es&nbsp;: sans ces deux parties, la performance passe de 2359 \u00e0 2362.<\/p>\n<\/div>\n\n<h2 class=\"sect\">7. Conclusion<\/h2>\n<div class=\"box\"><span class=\"box-titre\">R\u00e9sultat d\u00e9finitif<\/span>\n<p><strong>Novag Star Diamond \u00e0 110&nbsp;MHz&nbsp;: 2359 \u00b128 Elo<\/strong> (162&nbsp;parties, vitesse contr\u00f4l\u00e9e), 133&nbsp;points au-dessus de la machine d&#8217;origine. Quadrupler la fr\u00e9quence rapporte 63&nbsp;points par doublement, presque exactement le rendement du Forte A, l&#8217;anc\u00eatre de 1986 sign\u00e9 du m\u00eame programmeur. \u00c0 110&nbsp;MHz, la Star Diamond joue au niveau d&#8217;un Mephisto Genius 68030 London.<\/p>\n<\/div>\n\n<hr>\n<h3 class=\"ssect\">Sources<\/h3>\n<ul class=\"sources\">\n<li>Liste maison&nbsp;: <a href=\"https:\/\/www.chess.lumn.eu\/wordpress\/2026\/10\/22\/performance-elo\/\">Performance Elo, tournois maison<\/a> (Ordo, 2&nbsp;novembre 2026, pour la Star Diamond d&#8217;origine&nbsp;; cotes fixes du gauntlet, m\u00eame date).<\/li>\n<li>Wiki-Elo-Liste, schach-computer.info, \u00e9tat de d\u00e9cembre 2025&nbsp;: <a href=\"https:\/\/www.schach-computer.info\/wiki\/index.php\/Wiki-Elo-Liste\">Wiki-Elo-Liste<\/a>.<\/li>\n<li>Caract\u00e9ristiques de la Star Diamond&nbsp;: <a href=\"https:\/\/www.spacious-mind.com\/html\/star_diamond.html\">Spacious Mind, Novag Star Diamond<\/a>.<\/li>\n<li>Articles du laboratoire&nbsp;: <a href=\"https:\/\/www.chess.lumn.eu\/wordpress\/2026\/10\/05\/novag-constellation-forte-a-91-mhz\/\">Forte A \u00e0 91 MHz<\/a>, <a href=\"https:\/\/www.chess.lumn.eu\/wordpress\/2026\/11\/02\/mephisto-risc-ii-56mhz\/\">RISC II \u00e0 56 MHz<\/a>, <a href=\"https:\/\/www.chess.lumn.eu\/wordpress\/2026\/10\/26\/mephisto-berlin-pro-230mhz\/\">Berlin Pro \u00e0 230 MHz<\/a>, <a href=\"https:\/\/www.chess.lumn.eu\/wordpress\/2026\/10\/25\/chess-genius-68030-240mhz\/\">Genius 68030 \u00e0 240 MHz<\/a>, <a href=\"https:\/\/www.chess.lumn.eu\/wordpress\/2026\/10\/12\/psion-chess-2-13-286-1800-mhz\/\">Psion \u00e0 1800 MHz<\/a>, <a href=\"https:\/\/www.chess.lumn.eu\/wordpress\/2026\/10\/09\/saitek-turbo-16k-a-125-mhz\/\">Turbo 16K \u00e0 125 MHz<\/a>, <a href=\"https:\/\/www.chess.lumn.eu\/wordpress\/2026\/10\/03\/saitek-risc-2500-a-400-mhz-le-veteran-de-1992-passe-la-surmultipliee\/\">RISC 2500 \u00e0 400 MHz<\/a>, <a href=\"https:\/\/www.chess.lumn.eu\/wordpress\/2026\/10\/03\/fidelity-par-excellence-73-mhz-le-choc-des-cadences\/\">Par Excellence \u00e0 73 MHz<\/a>, <a href=\"https:\/\/www.chess.lumn.eu\/wordpress\/2026\/09\/29\/stockfish-11-68020-68040\/\">Stockfish 11 sur 68020 et 68040<\/a>.<\/li>\n<li>Partie&nbsp;: PGN du gauntlet (cutechess-cli). Analyses de contr\u00f4le&nbsp;: Stockfish&nbsp;16. Vitesse&nbsp;: journal <code>vitesses_parties.tsv<\/code> du relais UCI.<\/li>\n<\/ul>\n<p class=\"sig\">chess.lumn.eu \u00b7 laboratoire \u00b7 novembre 2026<\/p>\n<\/div>\n\n<script>\n(function(){\nvar R = [{\"f\": \"rnbqkbnr\/pppppppp\/8\/8\/2P5\/8\/PP1PPPPP\/RNBQKBNR b KQkq - 0 1\", \"s\": \"c4\", \"u\": \"c2c4\", \"w\": true, \"n\": 1, \"c\": \"Partie anglaise. La Star Diamond acc\u00e9l\u00e9r\u00e9e (Blancs) joue son propre livre. En face&nbsp;: <b>Stockfish 11 sur 68020 \u00e0 16&nbsp;MHz<\/b>, le portage maison du laboratoire (\u00e9valuation classique), cot\u00e9 2391 et l'un des adversaires les plus durs du gauntlet&nbsp;: la Star Diamond n'y a marqu\u00e9 que 1,5&nbsp;point sur 6.\", \"m\": \"prof.&nbsp;5, 4&nbsp;s\", \"sf\": \"+0,21\"}, {\"f\": \"rnbqkbnr\/pppp1ppp\/8\/4p3\/2P5\/8\/PP1PPPPP\/RNBQKBNR w KQkq - 0 2\", \"s\": \"e5\", \"u\": \"e7e5\", \"w\": false, \"n\": 1, \"c\": \"\", \"m\": \"livre\", \"sf\": \"+0,13\"}, {\"f\": \"rnbqkbnr\/pppp1ppp\/8\/4p3\/2P5\/2N5\/PP1PPPPP\/R1BQKBNR b KQkq - 1 2\", \"s\": \"Cc3\", \"u\": \"b1c3\", \"w\": true, \"n\": 2, \"c\": \"\", \"m\": \"livre ou coup imm\u00e9diat (1,1&nbsp;s)\", \"sf\": \"+0,09\"}, {\"f\": \"rnbqkb1r\/pppp1ppp\/5n2\/4p3\/2P5\/2N5\/PP1PPPPP\/R1BQKBNR w KQkq - 2 3\", \"s\": \"Cf6\", \"u\": \"g8f6\", \"w\": false, \"n\": 2, \"c\": \"\", \"m\": \"livre\", \"sf\": \"+0,22\"}, {\"f\": \"rnbqkb1r\/pppp1ppp\/5n2\/4p3\/2P5\/2N2N2\/PP1PPPPP\/R1BQKB1R b KQkq - 3 3\", \"s\": \"Cf3\", \"u\": \"g1f3\", \"w\": true, \"n\": 3, \"c\": \"\", \"m\": \"livre ou coup imm\u00e9diat (1,1&nbsp;s)\", \"sf\": \"+0,09\"}, {\"f\": \"r1bqkb1r\/pppp1ppp\/2n2n2\/4p3\/2P5\/2N2N2\/PP1PPPPP\/R1BQKB1R w KQkq - 4 4\", \"s\": \"Cc6\", \"u\": \"b8c6\", \"w\": false, \"n\": 3, \"c\": \"\", \"m\": \"livre\", \"sf\": \"+0,08\"}, {\"f\": \"r1bqkb1r\/pppp1ppp\/2n2n2\/4p3\/2P5\/2N2NP1\/PP1PPP1P\/R1BQKB1R b KQkq - 0 4\", \"s\": \"g3\", \"u\": \"g2g3\", \"w\": true, \"n\": 4, \"c\": \"\", \"m\": \"livre ou coup imm\u00e9diat (1,1&nbsp;s)\", \"sf\": \"\u22120,01\"}, {\"f\": \"r1bqkb1r\/ppp2ppp\/2n2n2\/3pp3\/2P5\/2N2NP1\/PP1PPP1P\/R1BQKB1R w KQkq - 0 5\", \"s\": \"d5\", \"u\": \"d7d5\", \"w\": false, \"n\": 4, \"c\": \"\", \"m\": \"livre\", \"sf\": \"+0,14\"}, {\"f\": \"r1bqkb1r\/ppp2ppp\/2n2n2\/3Pp3\/8\/2N2NP1\/PP1PPP1P\/R1BQKB1R b KQkq - 0 5\", \"s\": \"cxd5\", \"u\": \"c4d5\", \"w\": true, \"n\": 5, \"c\": \"\", \"m\": \"livre ou coup imm\u00e9diat (1,1&nbsp;s)\", \"sf\": \"+0,13\"}, {\"f\": \"r1bqkb1r\/ppp2ppp\/2n5\/3np3\/8\/2N2NP1\/PP1PPP1P\/R1BQKB1R w KQkq - 0 6\", \"s\": \"Cxd5\", \"u\": \"f6d5\", \"w\": false, \"n\": 5, \"c\": \"\", \"m\": \"livre\", \"sf\": \"+0,16\"}, {\"f\": \"r1bqkb1r\/ppp2ppp\/2n5\/3np3\/8\/2N2NP1\/PP1PPPBP\/R1BQK2R b KQkq - 1 6\", \"s\": \"Fg2\", \"u\": \"f1g2\", \"w\": true, \"n\": 6, \"c\": \"\", \"m\": \"livre ou coup imm\u00e9diat (1,1&nbsp;s)\", \"sf\": \"+0,05\"}, {\"f\": \"r1bqkb1r\/ppp2ppp\/1nn5\/4p3\/8\/2N2NP1\/PP1PPPBP\/R1BQK2R w KQkq - 2 7\", \"s\": \"Cb6\", \"u\": \"d5b6\", \"w\": false, \"n\": 6, \"c\": \"\", \"m\": \"livre\", \"sf\": \"+0,21\"}, {\"f\": \"r1bqkb1r\/ppp2ppp\/1nn5\/4p3\/8\/2N2NP1\/PP1PPPBP\/R1BQ1RK1 b kq - 3 7\", \"s\": \"O-O\", \"u\": \"e1g1\", \"w\": true, \"n\": 7, \"c\": \"\", \"m\": \"livre ou coup imm\u00e9diat (1,1&nbsp;s)\", \"sf\": \"+0,21\"}, {\"f\": \"r1bqk2r\/ppp1bppp\/1nn5\/4p3\/8\/2N2NP1\/PP1PPPBP\/R1BQ1RK1 w kq - 4 8\", \"s\": \"Fe7\", \"u\": \"f8e7\", \"w\": false, \"n\": 7, \"c\": \"Stockfish 68020 quitte son livre et prend une minute (62&nbsp;s) pour son premier coup calcul\u00e9.\", \"m\": \"+0,11 (prof.&nbsp;10, 62&nbsp;s)\", \"sf\": \"+0,17\"}, {\"f\": \"r1bqk2r\/ppp1bppp\/1nn5\/4p3\/8\/2NP1NP1\/PP2PPBP\/R1BQ1RK1 b kq - 0 8\", \"s\": \"d3\", \"u\": \"d2d3\", \"w\": true, \"n\": 8, \"c\": \"\", \"m\": \"livre ou coup imm\u00e9diat (0,95&nbsp;s)\", \"sf\": \"+0,16\"}, {\"f\": \"r1bq1rk1\/ppp1bppp\/1nn5\/4p3\/8\/2NP1NP1\/PP2PPBP\/R1BQ1RK1 w - - 1 9\", \"s\": \"O-O\", \"u\": \"e8g8\", \"w\": false, \"n\": 8, \"c\": \"\", \"m\": \"livre\", \"sf\": \"+0,23\"}, {\"f\": \"r1bq1rk1\/ppp1bppp\/1nn5\/4p3\/8\/P1NP1NP1\/1P2PPBP\/R1BQ1RK1 b - - 0 9\", \"s\": \"a3\", \"u\": \"a2a3\", \"w\": true, \"n\": 9, \"c\": \"\", \"m\": \"livre ou coup imm\u00e9diat (1,1&nbsp;s)\", \"sf\": \"+0,24\"}, {\"f\": \"r2q1rk1\/ppp1bppp\/1nn1b3\/4p3\/8\/P1NP1NP1\/1P2PPBP\/R1BQ1RK1 w - - 1 10\", \"s\": \"Fe6\", \"u\": \"c8e6\", \"w\": false, \"n\": 9, \"c\": \"\", \"m\": \"+0,27 (prof.&nbsp;9, 16&nbsp;s)\", \"sf\": \"+0,11\"}, {\"f\": \"r2q1rk1\/ppp1bppp\/1nn1b3\/4p3\/1P6\/P1NP1NP1\/4PPBP\/R1BQ1RK1 b - - 0 10\", \"s\": \"b4\", \"u\": \"b2b4\", \"w\": true, \"n\": 10, \"c\": \"\", \"m\": \"livre ou coup imm\u00e9diat (0,96&nbsp;s)\", \"sf\": \"+0,09\"}, {\"f\": \"r2q1rk1\/1pp1bppp\/1nn1b3\/p3p3\/1P6\/P1NP1NP1\/4PPBP\/R1BQ1RK1 w - - 0 11\", \"s\": \"a5\", \"u\": \"a7a5\", \"w\": false, \"n\": 10, \"c\": \"\", \"m\": \"+0,13 (prof.&nbsp;9, 23&nbsp;s)\", \"sf\": \"+0,15\"}, {\"f\": \"r2q1rk1\/1pp1bppp\/1nn1b3\/pP2p3\/8\/P1NP1NP1\/4PPBP\/R1BQ1RK1 b - - 0 11\", \"s\": \"b5\", \"u\": \"b4b5\", \"w\": true, \"n\": 11, \"c\": \"\", \"m\": \"livre ou coup imm\u00e9diat (0,95&nbsp;s)\", \"sf\": \"+0,18\"}, {\"f\": \"r2q1rk1\/npp1bppp\/1n2b3\/pP2p3\/8\/P1NP1NP1\/4PPBP\/R1BQ1RK1 w - - 1 12\", \"s\": \"Ca7\", \"u\": \"c6a7\", \"w\": false, \"n\": 11, \"c\": \"<b>11\u2026Ca7&nbsp;?!<\/b> Un repli peu naturel&nbsp;; Stockfish&nbsp;16 pr\u00e9f\u00e9rait 11\u2026Cd4. Les Blancs prennent un petit avantage (+0,8).\", \"m\": \"\u22120,36 (prof.&nbsp;9, 16&nbsp;s)\", \"sf\": \"+0,77\"}, {\"f\": \"r2q1rk1\/npp1bppp\/1n2b3\/pP2p3\/8\/P1NP1NP1\/2Q1PPBP\/R1B2RK1 b - - 2 12\", \"s\": \"Dc2\", \"u\": \"d1c2\", \"w\": true, \"n\": 12, \"c\": \"\", \"m\": \"prof.&nbsp;7, 17&nbsp;s\", \"sf\": \"+0,42\"}, {\"f\": \"r2q1rk1\/npp1b1pp\/1n2bp2\/pP2p3\/8\/P1NP1NP1\/2Q1PPBP\/R1B2RK1 w - - 0 13\", \"s\": \"f6\", \"u\": \"f7f6\", \"w\": false, \"n\": 12, \"c\": \"\", \"m\": \"+0,13 (prof.&nbsp;9, 11&nbsp;s)\", \"sf\": \"+0,77\"}, {\"f\": \"r2q1rk1\/npp1b1pp\/1n2bp2\/pP2p3\/P7\/2NP1NP1\/2Q1PPBP\/R1B2RK1 b - - 0 13\", \"s\": \"a4\", \"u\": \"a3a4\", \"w\": true, \"n\": 13, \"c\": \"\", \"m\": \"prof.&nbsp;7, 17&nbsp;s\", \"sf\": \"+0,07\"}, {\"f\": \"r2q1rk1\/np2b1pp\/1np1bp2\/pP2p3\/P7\/2NP1NP1\/2Q1PPBP\/R1B2RK1 w - - 0 14\", \"s\": \"c6\", \"u\": \"c7c6\", \"w\": false, \"n\": 13, \"c\": \"\", \"m\": \"+0,32 (prof.&nbsp;10, 29&nbsp;s)\", \"sf\": \"+0,00\"}, {\"f\": \"r2q1rk1\/np2b1pp\/1np1bp2\/pP2p3\/P7\/2NP1NP1\/1Q2PPBP\/R1B2RK1 b - - 1 14\", \"s\": \"Db2\", \"u\": \"c2b2\", \"w\": true, \"n\": 14, \"c\": \"\", \"m\": \"prof.&nbsp;7, 17&nbsp;s\", \"sf\": \"\u22120,05\"}, {\"f\": \"r2q1rk1\/np2b1pp\/1n2bp2\/pp2p3\/P7\/2NP1NP1\/1Q2PPBP\/R1B2RK1 w - - 0 15\", \"s\": \"cxb5\", \"u\": \"c6b5\", \"w\": false, \"n\": 14, \"c\": \"\", \"m\": \"+0,49 (prof.&nbsp;8, 11&nbsp;s)\", \"sf\": \"+0,12\"}, {\"f\": \"r2q1rk1\/np2b1pp\/1n2bp2\/pN2p3\/P7\/3P1NP1\/1Q2PPBP\/R1B2RK1 b - - 0 15\", \"s\": \"Cxb5\", \"u\": \"c3b5\", \"w\": true, \"n\": 15, \"c\": \"<b>15.Cxb5&nbsp;?!<\/b> La Star Diamond reprend du Cavalier plut\u00f4t que du pion (15.axb5). Stockfish&nbsp;16 passe \u00e0 \u22120,9&nbsp;: 15\u2026Cxb5 aurait donn\u00e9 l'avantage aux Noirs, qui laissent passer l'occasion.\", \"m\": \"prof.&nbsp;7, 17&nbsp;s\", \"sf\": \"\u22120,90\"}, {\"f\": \"r2q1rk1\/1p2b1pp\/1nn1bp2\/pN2p3\/P7\/3P1NP1\/1Q2PPBP\/R1B2RK1 w - - 1 16\", \"s\": \"Cc6\", \"u\": \"a7c6\", \"w\": false, \"n\": 15, \"c\": \"\", \"m\": \"+0,61 (prof.&nbsp;9, 16&nbsp;s)\", \"sf\": \"\u22120,10\"}, {\"f\": \"r2q1rk1\/1p2b1pp\/1nn1bp2\/pN2p3\/P7\/3P1NP1\/1Q1BPPBP\/R4RK1 b - - 2 16\", \"s\": \"Fd2\", \"u\": \"c1d2\", \"w\": true, \"n\": 16, \"c\": \"\", \"m\": \"prof.&nbsp;7, 17&nbsp;s\", \"sf\": \"\u22120,12\"}, {\"f\": \"r2q1rk1\/1p2b1pp\/2n1bp2\/pN1np3\/P7\/3P1NP1\/1Q1BPPBP\/R4RK1 w - - 3 17\", \"s\": \"Cd5\", \"u\": \"b6d5\", \"w\": false, \"n\": 16, \"c\": \"\", \"m\": \"+0,78 (prof.&nbsp;9, 22&nbsp;s)\", \"sf\": \"+0,35\"}, {\"f\": \"r2q1rk1\/1p2b1pp\/2n1bp2\/pN1np3\/P7\/3P1NP1\/1Q1BPPBP\/R1R3K1 b - - 4 17\", \"s\": \"Tfc1\", \"u\": \"f1c1\", \"w\": true, \"n\": 17, \"c\": \"\", \"m\": \"prof.&nbsp;6, 17&nbsp;s\", \"sf\": \"\u22120,13\"}, {\"f\": \"r4rk1\/1p2b1pp\/1qn1bp2\/pN1np3\/P7\/3P1NP1\/1Q1BPPBP\/R1R3K1 w - - 5 18\", \"s\": \"Db6\", \"u\": \"d8b6\", \"w\": false, \"n\": 17, \"c\": \"<b>17\u2026Db6&nbsp;?<\/b> permettait 18.e4&nbsp;! (+1,2 selon Stockfish&nbsp;16). La Star Diamond joue 18.d4 et la chance passe.\", \"m\": \"+1,23 (prof.&nbsp;10, 15&nbsp;s)\", \"sf\": \"+1,22\"}, {\"f\": \"r4rk1\/1p2b1pp\/1qn1bp2\/pN1np3\/P2P4\/5NP1\/1Q1BPPBP\/R1R3K1 b - - 0 18\", \"s\": \"d4\", \"u\": \"d3d4\", \"w\": true, \"n\": 18, \"c\": \"\", \"m\": \"prof.&nbsp;6, 17&nbsp;s\", \"sf\": \"\u22120,11\"}, {\"f\": \"r4rk1\/1p2b1pp\/1qn1bp2\/pN1n4\/P2Pp3\/5NP1\/1Q1BPPBP\/R1R3K1 w - - 0 19\", \"s\": \"e4\", \"u\": \"e5e4\", \"w\": false, \"n\": 18, \"c\": \"\", \"m\": \"+0,96 (prof.&nbsp;8, 11&nbsp;s)\", \"sf\": \"\u22120,04\"}, {\"f\": \"r4rk1\/1p2b1pp\/1qn1bp2\/pN1n4\/P2Pp3\/6P1\/1Q1BPPBP\/R1R1N1K1 b - - 1 19\", \"s\": \"Ce1\", \"u\": \"f3e1\", \"w\": true, \"n\": 19, \"c\": \"\", \"m\": \"prof.&nbsp;7, 17&nbsp;s\", \"sf\": \"\u22120,03\"}, {\"f\": \"r4rk1\/1p2b1pp\/1qn1b3\/pN1n1p2\/P2Pp3\/6P1\/1Q1BPPBP\/R1R1N1K1 w - - 0 20\", \"s\": \"f5\", \"u\": \"f6f5\", \"w\": false, \"n\": 19, \"c\": \"\", \"m\": \"+1,31 (prof.&nbsp;9, 11&nbsp;s)\", \"sf\": \"\u22120,11\"}, {\"f\": \"r4rk1\/1p2b1pp\/1qn1b3\/pN1n1p2\/P2Pp3\/6P1\/1QNBPPBP\/R1R3K1 b - - 1 20\", \"s\": \"Cc2\", \"u\": \"e1c2\", \"w\": true, \"n\": 20, \"c\": \"\", \"m\": \"prof.&nbsp;7, 17&nbsp;s\", \"sf\": \"\u22120,05\"}, {\"f\": \"r4rk1\/1p4pp\/1qn1bb2\/pN1n1p2\/P2Pp3\/6P1\/1QNBPPBP\/R1R3K1 w - - 2 21\", \"s\": \"Ff6\", \"u\": \"e7f6\", \"w\": false, \"n\": 20, \"c\": \"\", \"m\": \"+0,35 (prof.&nbsp;10, 47&nbsp;s)\", \"sf\": \"+0,08\"}, {\"f\": \"r4rk1\/1p4pp\/1qn1bb2\/pN1n1p2\/P2Pp3\/6P1\/1QNBPPBP\/1RR3K1 b - - 3 21\", \"s\": \"Tab1\", \"u\": \"a1b1\", \"w\": true, \"n\": 21, \"c\": \"\", \"m\": \"prof.&nbsp;7, 17&nbsp;s\", \"sf\": \"+0,13\"}, {\"f\": \"r2q1rk1\/1p4pp\/2n1bb2\/pN1n1p2\/P2Pp3\/6P1\/1QNBPPBP\/1RR3K1 w - - 4 22\", \"s\": \"Dd8\", \"u\": \"b6d8\", \"w\": false, \"n\": 21, \"c\": \"\", \"m\": \"+0,71 (prof.&nbsp;10, 36&nbsp;s)\", \"sf\": \"+0,15\"}, {\"f\": \"r2q1rk1\/1p4pp\/2n1bb2\/pN1n1p2\/P2Pp3\/5PP1\/1QNBP1BP\/1RR3K1 b - - 0 22\", \"s\": \"f3\", \"u\": \"f2f3\", \"w\": true, \"n\": 22, \"c\": \"\", \"m\": \"prof.&nbsp;7, 17&nbsp;s\", \"sf\": \"\u22120,45\"}, {\"f\": \"r2q1rk1\/1p4pp\/1nn1bb2\/pN3p2\/P2Pp3\/5PP1\/1QNBP1BP\/1RR3K1 w - - 1 23\", \"s\": \"Cb6\", \"u\": \"d5b6\", \"w\": false, \"n\": 22, \"c\": \"\", \"m\": \"+1,23 (prof.&nbsp;9, 29&nbsp;s)\", \"sf\": \"+0,47\"}, {\"f\": \"r2q1rk1\/1p4pp\/1nn1bb2\/pN3p2\/P2PP3\/6P1\/1QNBP1BP\/1RR3K1 b - - 0 23\", \"s\": \"fxe4\", \"u\": \"f3e4\", \"w\": true, \"n\": 23, \"c\": \"\", \"m\": \"prof.&nbsp;7, 18&nbsp;s\", \"sf\": \"+0,37\"}, {\"f\": \"r2q1rk1\/1p4pp\/1nn1bb2\/pN6\/P2Pp3\/6P1\/1QNBP1BP\/1RR3K1 w - - 0 24\", \"s\": \"fxe4\", \"u\": \"f5e4\", \"w\": false, \"n\": 23, \"c\": \"\", \"m\": \"+0,23 (prof.&nbsp;10, 46&nbsp;s)\", \"sf\": \"+0,40\"}, {\"f\": \"r2q1rk1\/1p4pp\/1nn1bb2\/pN6\/P2Pp3\/6P1\/2NBP1BP\/QRR3K1 b - - 1 24\", \"s\": \"Da1\", \"u\": \"b2a1\", \"w\": true, \"n\": 24, \"c\": \"<b>24.Da1&nbsp;?!<\/b> La Dame part dans le coin, sur la grande diagonale. Stockfish&nbsp;16&nbsp;: \u22120,75.\", \"m\": \"prof.&nbsp;7, 18&nbsp;s\", \"sf\": \"\u22120,75\"}, {\"f\": \"r2q1rk1\/1p4pp\/2n1bb2\/pN6\/P1nPp3\/6P1\/2NBP1BP\/QRR3K1 w - - 2 25\", \"s\": \"Cc4\", \"u\": \"b6c4\", \"w\": false, \"n\": 24, \"c\": \"\", \"m\": \"+0,60 (prof.&nbsp;10, 44&nbsp;s)\", \"sf\": \"\u22120,70\"}, {\"f\": \"r2q1rk1\/1p4pp\/2n1bb2\/pN6\/P1nPpB2\/6P1\/2N1P1BP\/QRR3K1 b - - 3 25\", \"s\": \"Ff4\", \"u\": \"d2f4\", \"w\": true, \"n\": 25, \"c\": \"\", \"m\": \"prof.&nbsp;7, 18&nbsp;s\", \"sf\": \"\u22120,43\"}, {\"f\": \"r2q1rk1\/1p5p\/2n1bb2\/pN4p1\/P1nPpB2\/6P1\/2N1P1BP\/QRR3K1 w - - 0 26\", \"s\": \"g5\", \"u\": \"g7g5\", \"w\": false, \"n\": 25, \"c\": \"<b>25\u2026g5.<\/b> Stockfish 68020 s'annonce d\u00e9j\u00e0 \u00e0 +2,31. Stockfish&nbsp;16 ne voit qu'un l\u00e9ger avantage noir (\u22120,3).\", \"m\": \"+2,31 (prof.&nbsp;9, 11&nbsp;s)\", \"sf\": \"\u22120,29\"}, {\"f\": \"r2q1rk1\/1pB4p\/2n1bb2\/pN4p1\/P1nPp3\/6P1\/2N1P1BP\/QRR3K1 b - - 1 26\", \"s\": \"Fc7\", \"u\": \"f4c7\", \"w\": true, \"n\": 26, \"c\": \"\", \"m\": \"prof.&nbsp;7, 18&nbsp;s\", \"sf\": \"\u22120,40\"}, {\"f\": \"r4rk1\/1pBq3p\/2n1bb2\/pN4p1\/P1nPp3\/6P1\/2N1P1BP\/QRR3K1 w - - 2 27\", \"s\": \"Dd7\", \"u\": \"d8d7\", \"w\": false, \"n\": 26, \"c\": \"\", \"m\": \"+1,99 (prof.&nbsp;11, 27&nbsp;s)\", \"sf\": \"\u22120,29\"}, {\"f\": \"r4rk1\/1pBq3p\/2n1bb2\/pN4p1\/P1nPB3\/6P1\/2N1P2P\/QRR3K1 b - - 0 27\", \"s\": \"Fxe4\", \"u\": \"g2e4\", \"w\": true, \"n\": 27, \"c\": \"<b>27.Fxe4&nbsp;?<\/b> Le pion e4 \u00e9tait empoisonn\u00e9. Il fallait 27.Dc3.\", \"m\": \"prof.&nbsp;7, 18&nbsp;s\", \"sf\": \"\u22121,35\"}, {\"f\": \"r4rk1\/1pBq3p\/2n1bb2\/pN4p1\/P2PB3\/6P1\/2NnP2P\/QRR3K1 w - - 1 28\", \"s\": \"Cd2\", \"u\": \"c4d2\", \"w\": false, \"n\": 27, \"c\": \"<b>27\u2026Cd2&nbsp;!<\/b> Fourchette sur la Tour b1 et le Fou e4. Stockfish&nbsp;16&nbsp;: \u22121,5. La Star Diamond va perdre la qualit\u00e9.\", \"m\": \"+3,27 (prof.&nbsp;8, 9,8&nbsp;s)\", \"sf\": \"\u22121,48\"}, {\"f\": \"r4rk1\/1pBq3p\/2n1bb2\/pN4p1\/P2P4\/3B2P1\/2NnP2P\/QRR3K1 b - - 2 28\", \"s\": \"Fd3\", \"u\": \"e4d3\", \"w\": true, \"n\": 28, \"c\": \"\", \"m\": \"prof.&nbsp;7, 18&nbsp;s\", \"sf\": \"\u22121,94\"}, {\"f\": \"r4rk1\/1pBq2bp\/2n1b3\/pN4p1\/P2P4\/3B2P1\/2NnP2P\/QRR3K1 w - - 3 29\", \"s\": \"Fg7\", \"u\": \"f6g7\", \"w\": false, \"n\": 28, \"c\": \"<b>28\u2026Fg7&nbsp;?!<\/b> Au lieu d'encaisser la qualit\u00e9 tout de suite (28\u2026Cxb1, \u22122,0 selon Stockfish&nbsp;16), Stockfish 68020 joue un coup d'attente et affiche <b>+7,05<\/b>&nbsp;: il croit gagner bien davantage.\", \"m\": \"+7,05 (prof.&nbsp;8, 17&nbsp;s)\", \"sf\": \"\u22120,81\"}, {\"f\": \"r4rk1\/1p1q2bp\/2nBb3\/pN4p1\/P2P4\/3B2P1\/2NnP2P\/QRR3K1 b - - 4 29\", \"s\": \"Fd6\", \"u\": \"c7d6\", \"w\": true, \"n\": 29, \"c\": \"\", \"m\": \"prof.&nbsp;7, 18&nbsp;s\", \"sf\": \"\u22120,84\"}, {\"f\": \"r4rk1\/1p3qbp\/2nBb3\/pN4p1\/P2P4\/3B2P1\/2NnP2P\/QRR3K1 w - - 5 30\", \"s\": \"Df7\", \"u\": \"d7f7\", \"w\": false, \"n\": 29, \"c\": \"<b>29\u2026Df7&nbsp;?<\/b> Le tournant. Stockfish 68020 annonce <b>+7,59<\/b>, persuad\u00e9 d'un gain massif. Stockfish&nbsp;16 donne en r\u00e9alit\u00e9 +0,4 aux Blancs&nbsp;: 29\u2026Fh3 ou 29\u2026Tf7 gardaient un avantage noir d'environ un pion.\", \"m\": \"+7,59 (prof.&nbsp;9, 9,7&nbsp;s)\", \"sf\": \"+0,41\"}, {\"f\": \"r4Bk1\/1p3qbp\/2n1b3\/pN4p1\/P2P4\/3B2P1\/2NnP2P\/QRR3K1 b - - 0 30\", \"s\": \"Fxf8\", \"u\": \"d6f8\", \"w\": true, \"n\": 30, \"c\": \"\", \"m\": \"prof.&nbsp;6, 18&nbsp;s\", \"sf\": \"+0,35\"}, {\"f\": \"5rk1\/1p3qbp\/2n1b3\/pN4p1\/P2P4\/3B2P1\/2NnP2P\/QRR3K1 w - - 0 31\", \"s\": \"Txf8\", \"u\": \"a8f8\", \"w\": false, \"n\": 30, \"c\": \"Stockfish 68020 y croit toujours&nbsp;: +5,47.\", \"m\": \"+5,47 (prof.&nbsp;11, 9,8&nbsp;s)\", \"sf\": \"+0,30\"}, {\"f\": \"5rk1\/1p3qbp\/2n1b3\/pN4p1\/P2P4\/3B2P1\/2NnP2P\/QR3RK1 b - - 1 31\", \"s\": \"Tf1\", \"u\": \"c1f1\", \"w\": true, \"n\": 31, \"c\": \"<b>31.Tf1&nbsp;!<\/b> La parade que l'adversaire n'avait pas vue&nbsp;: la Tour s'oppose \u00e0 la Dame f7 sur la colonne ouverte, et tout s'\u00e9change en quatre coups.\", \"m\": \"prof.&nbsp;8, 18&nbsp;s\", \"sf\": \"+0,34\"}, {\"f\": \"5rk1\/1p4bp\/2n1b3\/pN4p1\/P2P4\/3B2P1\/2NnP2P\/QR3qK1 w - - 0 32\", \"s\": \"Dxf1+\", \"u\": \"f7f1\", \"w\": false, \"n\": 31, \"c\": \"Il faut le voir pour le croire&nbsp;: l'\u00e9valuation de Stockfish 68020 tombe de +5,47 \u00e0 <b>\u22120,50<\/b> en un coup. Stockfish&nbsp;16, lui, n'a pas boug\u00e9 (+0,4). L'illusion venait de l'horizon&nbsp;: \u00e0 16&nbsp;MHz, Stockfish&nbsp;11 ne calculait que 8 \u00e0 11 demi-coups.\", \"m\": \"\u22120,50 (prof.&nbsp;10, 34&nbsp;s)\", \"sf\": \"+0,38\"}, {\"f\": \"5rk1\/1p4bp\/2n1b3\/pN4p1\/P2P4\/3B2P1\/2NnP2P\/Q4RK1 b - - 0 32\", \"s\": \"Txf1\", \"u\": \"b1f1\", \"w\": true, \"n\": 32, \"c\": \"\", \"m\": \"prof.&nbsp;1, 0,91&nbsp;s\", \"sf\": \"+0,29\"}, {\"f\": \"6k1\/1p4bp\/2n1b3\/pN4p1\/P2P4\/3B2P1\/2NnP2P\/Q4rK1 w - - 0 33\", \"s\": \"Txf1+\", \"u\": \"f8f1\", \"w\": false, \"n\": 32, \"c\": \"\", \"m\": \"\u22120,35 (prof.&nbsp;10, 9,3&nbsp;s)\", \"sf\": \"+0,41\"}, {\"f\": \"6k1\/1p4bp\/2n1b3\/pN4p1\/P2P4\/3B2P1\/2NnP2P\/5QK1 b - - 0 33\", \"s\": \"Dxf1\", \"u\": \"a1f1\", \"w\": true, \"n\": 33, \"c\": \"\", \"m\": \"prof.&nbsp;10, 18&nbsp;s\", \"sf\": \"+0,32\"}, {\"f\": \"6k1\/1p4bp\/2n1b3\/pN4p1\/P2P4\/3B2P1\/2N1P2P\/5nK1 w - - 0 34\", \"s\": \"Cxf1\", \"u\": \"d2f1\", \"w\": false, \"n\": 33, \"c\": \"\", \"m\": \"\u22120,23 (prof.&nbsp;10, 9,4&nbsp;s)\", \"sf\": \"+0,35\"}, {\"f\": \"6k1\/1p4bp\/2n1b3\/pN4p1\/P2P4\/3B2P1\/2N1P2P\/5K2 b - - 0 34\", \"s\": \"Rxf1\", \"u\": \"g1f1\", \"w\": true, \"n\": 34, \"c\": \"Finale de pi\u00e8ces mineures&nbsp;: Fou et deux Cavaliers contre deux Fous et un Cavalier, \u00e0 peu pr\u00e8s \u00e9gale.\", \"m\": \"prof.&nbsp;9, 18&nbsp;s\", \"sf\": \"+0,28\"}, {\"f\": \"6k1\/1p4bp\/2n5\/pN4p1\/P2P4\/1b1B2P1\/2N1P2P\/5K2 w - - 1 35\", \"s\": \"Fb3\", \"u\": \"e6b3\", \"w\": false, \"n\": 34, \"c\": \"\", \"m\": \"\u22120,11 (prof.&nbsp;10, 9,6&nbsp;s)\", \"sf\": \"+0,30\"}, {\"f\": \"6k1\/1p4bp\/2n5\/pN4p1\/P2P4\/1b1BP1P1\/2N4P\/5K2 b - - 0 35\", \"s\": \"e3\", \"u\": \"e2e3\", \"w\": true, \"n\": 35, \"c\": \"\", \"m\": \"prof.&nbsp;9, 18&nbsp;s\", \"sf\": \"+0,32\"}, {\"f\": \"6k1\/1p4bp\/2n5\/pN4p1\/b2P4\/3BP1P1\/2N4P\/5K2 w - - 0 36\", \"s\": \"Fxa4\", \"u\": \"b3a4\", \"w\": false, \"n\": 35, \"c\": \"\", \"m\": \"\u22120,15 (prof.&nbsp;9, 9,8&nbsp;s)\", \"sf\": \"+0,39\"}, {\"f\": \"6k1\/1p4bp\/2n5\/pN4p1\/b2P4\/3BP1P1\/2N1K2P\/8 b - - 1 36\", \"s\": \"Re2\", \"u\": \"f1e2\", \"w\": true, \"n\": 36, \"c\": \"\", \"m\": \"prof.&nbsp;8, 18&nbsp;s\", \"sf\": \"+0,30\"}, {\"f\": \"5bk1\/1p5p\/2n5\/pN4p1\/b2P4\/3BP1P1\/2N1K2P\/8 w - - 2 37\", \"s\": \"Ff8\", \"u\": \"g7f8\", \"w\": false, \"n\": 36, \"c\": \"\", \"m\": \"\u22120,02 (prof.&nbsp;9, 32&nbsp;s)\", \"sf\": \"+0,50\"}, {\"f\": \"5bk1\/1p5p\/2n5\/pN1P2p1\/b7\/3BP1P1\/2N1K2P\/8 b - - 0 37\", \"s\": \"d5\", \"u\": \"d4d5\", \"w\": true, \"n\": 37, \"c\": \"<b>37.d5&nbsp;?!<\/b> Le pion d s'avance (Stockfish&nbsp;16&nbsp;: \u22120,7). Il n'a l'air de rien&nbsp;; c'est lui qui gagnera la partie.\", \"m\": \"prof.&nbsp;8, 18&nbsp;s\", \"sf\": \"\u22120,67\"}, {\"f\": \"5bk1\/1p5p\/8\/pN1P2p1\/bn6\/3BP1P1\/2N1K2P\/8 w - - 1 38\", \"s\": \"Cb4\", \"u\": \"c6b4\", \"w\": false, \"n\": 37, \"c\": \"\", \"m\": \"\u22120,26 (prof.&nbsp;8, 13&nbsp;s)\", \"sf\": \"\u22120,28\"}, {\"f\": \"5bk1\/1p5p\/8\/pN1P2p1\/bn1N4\/3BP1P1\/4K2P\/8 b - - 2 38\", \"s\": \"Ccd4\", \"u\": \"c2d4\", \"w\": true, \"n\": 38, \"c\": \"\", \"m\": \"prof.&nbsp;9, 18&nbsp;s\", \"sf\": \"\u22120,13\"}, {\"f\": \"5b2\/1p3k1p\/8\/pN1P2p1\/bn1N4\/3BP1P1\/4K2P\/8 w - - 3 39\", \"s\": \"Rf7\", \"u\": \"g8f7\", \"w\": false, \"n\": 38, \"c\": \"\", \"m\": \"+0,24 (prof.&nbsp;9, 12&nbsp;s)\", \"sf\": \"\u22120,08\"}, {\"f\": \"5b2\/1p3k1p\/8\/p2P2p1\/bn1N4\/2NBP1P1\/4K2P\/8 b - - 4 39\", \"s\": \"Cc3\", \"u\": \"b5c3\", \"w\": true, \"n\": 39, \"c\": \"\", \"m\": \"prof.&nbsp;9, 18&nbsp;s\", \"sf\": \"\u22120,54\"}, {\"f\": \"5b2\/1p3k1p\/8\/p2P2p1\/b2N4\/2NnP1P1\/4K2P\/8 w - - 0 40\", \"s\": \"Cxd3\", \"u\": \"b4d3\", \"w\": false, \"n\": 39, \"c\": \"\", \"m\": \"+0,49 (prof.&nbsp;10, 8,5&nbsp;s)\", \"sf\": \"\u22120,75\"}, {\"f\": \"5b2\/1p3k1p\/8\/p2P2p1\/b2N4\/2NKP1P1\/7P\/8 b - - 0 40\", \"s\": \"Rxd3\", \"u\": \"e2d3\", \"w\": true, \"n\": 40, \"c\": \"\", \"m\": \"prof.&nbsp;9, 19&nbsp;s\", \"sf\": \"\u22120,75\"}, {\"f\": \"4bb2\/1p3k1p\/8\/p2P2p1\/3N4\/2NKP1P1\/7P\/8 w - - 1 41\", \"s\": \"Fe8\", \"u\": \"a4e8\", \"w\": false, \"n\": 40, \"c\": \"\", \"m\": \"+0,59 (prof.&nbsp;9, 16&nbsp;s)\", \"sf\": \"\u22120,33\"}, {\"f\": \"4bb2\/1p3k1p\/8\/p2P2p1\/3NN3\/3KP1P1\/7P\/8 b - - 2 41\", \"s\": \"Ce4\", \"u\": \"c3e4\", \"w\": true, \"n\": 41, \"c\": \"\", \"m\": \"prof.&nbsp;8, 19&nbsp;s\", \"sf\": \"\u22120,53\"}, {\"f\": \"4bb2\/1p3k2\/7p\/p2P2p1\/3NN3\/3KP1P1\/7P\/8 w - - 0 42\", \"s\": \"h6\", \"u\": \"h7h6\", \"w\": false, \"n\": 41, \"c\": \"\", \"m\": \"+0,33 (prof.&nbsp;11, 35&nbsp;s)\", \"sf\": \"\u22120,66\"}, {\"f\": \"4bb2\/1p3k2\/3P3p\/p5p1\/3NN3\/3KP1P1\/7P\/8 b - - 0 42\", \"s\": \"d6\", \"u\": \"d5d6\", \"w\": true, \"n\": 42, \"c\": \"<b>42.d6.<\/b> Le pion pass\u00e9 arrive en d6, au prix d'un net d\u00e9savantage selon Stockfish&nbsp;16 (\u22121,4). Pendant six coups, les Noirs sont mieux.\", \"m\": \"prof.&nbsp;8, 19&nbsp;s\", \"sf\": \"\u22121,38\"}, {\"f\": \"4bb2\/5k2\/1p1P3p\/p5p1\/3NN3\/3KP1P1\/7P\/8 w - - 0 43\", \"s\": \"b6\", \"u\": \"b7b6\", \"w\": false, \"n\": 42, \"c\": \"\", \"m\": \"+0,83 (prof.&nbsp;10, 8,4&nbsp;s)\", \"sf\": \"\u22121,12\"}, {\"f\": \"4bb2\/5k2\/1p1P3p\/p5p1\/3NN2P\/3KP1P1\/8\/8 b - - 0 43\", \"s\": \"h4\", \"u\": \"h2h4\", \"w\": true, \"n\": 43, \"c\": \"<b>43.h4&nbsp;?!<\/b> Stockfish&nbsp;16&nbsp;: \u22121,8, le point le plus bas de la Star Diamond dans la finale.\", \"m\": \"prof.&nbsp;9, 19&nbsp;s\", \"sf\": \"\u22121,80\"}, {\"f\": \"4bb2\/5k2\/1p1P3p\/p7\/3NN2p\/3KP1P1\/8\/8 w - - 0 44\", \"s\": \"gxh4\", \"u\": \"g5h4\", \"w\": false, \"n\": 43, \"c\": \"\", \"m\": \"+0,93 (prof.&nbsp;9, 7&nbsp;s)\", \"sf\": \"\u22121,39\"}, {\"f\": \"4bb2\/5k2\/1p1P3p\/p7\/3NN2P\/3KP3\/8\/8 b - - 0 44\", \"s\": \"gxh4\", \"u\": \"g3h4\", \"w\": true, \"n\": 44, \"c\": \"\", \"m\": \"prof.&nbsp;9, 19&nbsp;s\", \"sf\": \"\u22121,21\"}, {\"f\": \"4b3\/5kb1\/1p1P3p\/p7\/3NN2P\/3KP3\/8\/8 w - - 1 45\", \"s\": \"Fg7\", \"u\": \"f8g7\", \"w\": false, \"n\": 44, \"c\": \"\", \"m\": \"+0,94 (prof.&nbsp;9, 6,9&nbsp;s)\", \"sf\": \"\u22121,31\"}, {\"f\": \"4b3\/5kb1\/1p1P3p\/p4N2\/4N2P\/3KP3\/8\/8 b - - 2 45\", \"s\": \"Cf5\", \"u\": \"d4f5\", \"w\": true, \"n\": 45, \"c\": \"\", \"m\": \"prof.&nbsp;8, 19&nbsp;s\", \"sf\": \"\u22121,34\"}, {\"f\": \"8\/5kb1\/1p1P3p\/pb3N2\/4N2P\/3KP3\/8\/8 w - - 3 46\", \"s\": \"Fb5+\", \"u\": \"e8b5\", \"w\": false, \"n\": 45, \"c\": \"\", \"m\": \"+0,89 (prof.&nbsp;8, 11&nbsp;s)\", \"sf\": \"\u22121,26\"}, {\"f\": \"8\/5kb1\/1p1P3p\/pb3N2\/4N2P\/4P3\/3K4\/8 b - - 4 46\", \"s\": \"Rd2\", \"u\": \"d3d2\", \"w\": true, \"n\": 46, \"c\": \"\", \"m\": \"prof.&nbsp;10, 19&nbsp;s\", \"sf\": \"\u22121,22\"}, {\"f\": \"8\/5kb1\/1pbP3p\/p4N2\/4N2P\/4P3\/3K4\/8 w - - 5 47\", \"s\": \"Fc6\", \"u\": \"b5c6\", \"w\": false, \"n\": 46, \"c\": \"\", \"m\": \"+1,16 (prof.&nbsp;8, 8,1&nbsp;s)\", \"sf\": \"\u22120,53\"}, {\"f\": \"8\/5kN1\/1pbP3p\/p7\/4N2P\/4P3\/3K4\/8 b - - 0 47\", \"s\": \"Cxg7\", \"u\": \"f5g7\", \"w\": true, \"n\": 47, \"c\": \"\", \"m\": \"prof.&nbsp;10, 19&nbsp;s\", \"sf\": \"\u22120,44\"}, {\"f\": \"8\/5kN1\/1p1P3p\/p7\/4b2P\/4P3\/3K4\/8 w - - 0 48\", \"s\": \"Fxe4\", \"u\": \"c6e4\", \"w\": false, \"n\": 47, \"c\": \"<b>47\u2026Fxe4&nbsp;?!<\/b> Plus simple \u00e9tait 47\u2026Rxg7. L'avantage noir s'\u00e9vapore (\u22120,1).\", \"m\": \"+1,57 (prof.&nbsp;8, 11&nbsp;s)\", \"sf\": \"\u22120,11\"}, {\"f\": \"8\/5kN1\/1p1P3p\/p6P\/4b3\/4P3\/3K4\/8 b - - 0 48\", \"s\": \"h5\", \"u\": \"h4h5\", \"w\": true, \"n\": 48, \"c\": \"\", \"m\": \"prof.&nbsp;10, 19&nbsp;s\", \"sf\": \"\u22120,03\"}, {\"f\": \"8\/5kN1\/3P3p\/pp5P\/4b3\/4P3\/3K4\/8 w - - 0 49\", \"s\": \"b5\", \"u\": \"b6b5\", \"w\": false, \"n\": 48, \"c\": \"<b>48\u2026b5&nbsp;??<\/b> La faute d\u00e9cisive. Stockfish&nbsp;16 passe de 0,0 \u00e0 <b>+3,7<\/b>&nbsp;: 48\u2026a4 ou 48\u2026Rf6 tenaient l'\u00e9quilibre. Stockfish 68020 (+1,09) ne voit pas la combinaison.\", \"m\": \"+1,09 (prof.&nbsp;9, 16&nbsp;s)\", \"sf\": \"+3,67\"}, {\"f\": \"8\/3P1kN1\/7p\/pp5P\/4b3\/4P3\/3K4\/8 b - - 0 49\", \"s\": \"d7\", \"u\": \"d6d7\", \"w\": true, \"n\": 49, \"c\": \"<b>49.d7&nbsp;!<\/b> Le pion pouss\u00e9 depuis le 37<sup>e<\/sup> coup devient une arme&nbsp;: il faut le prendre, et le Roi noir va se placer sur la mauvaise case.\", \"m\": \"prof.&nbsp;12, 19&nbsp;s\", \"sf\": \"+4,74\"}, {\"f\": \"8\/3Pk1N1\/7p\/pp5P\/4b3\/4P3\/3K4\/8 w - - 1 50\", \"s\": \"Re7\", \"u\": \"f7e7\", \"w\": false, \"n\": 49, \"c\": \"\", \"m\": \"+2,85 (prof.&nbsp;10, 6,2&nbsp;s)\", \"sf\": \"+4,87\"}, {\"f\": \"8\/3Pk3\/4N2p\/pp5P\/4b3\/4P3\/3K4\/8 b - - 2 50\", \"s\": \"Ce6\", \"u\": \"g7e6\", \"w\": true, \"n\": 50, \"c\": \"<b>50.Ce6&nbsp;!<\/b> Le Cavalier se dirige vers c5.\", \"m\": \"prof.&nbsp;13, 19&nbsp;s\", \"sf\": \"+5,01\"}, {\"f\": \"8\/3k4\/4N2p\/pp5P\/4b3\/4P3\/3K4\/8 w - - 0 51\", \"s\": \"Rxd7\", \"u\": \"e7d7\", \"w\": false, \"n\": 50, \"c\": \"Stockfish 68020 comprend enfin&nbsp;: \u22121,31.\", \"m\": \"\u22121,31 (prof.&nbsp;11, 18&nbsp;s)\", \"sf\": \"+5,14\"}, {\"f\": \"8\/3k4\/7p\/ppN4P\/4b3\/4P3\/3K4\/8 b - - 1 51\", \"s\": \"Cc5+\", \"u\": \"e6c5\", \"w\": true, \"n\": 51, \"c\": \"<b>51.Cc5+&nbsp;!<\/b> Fourchette sur le Roi d7 et le Fou e4. Apr\u00e8s 52.Cxe4, la Star Diamond a une pi\u00e8ce de plus.\", \"m\": \"prof.&nbsp;12, 19&nbsp;s\", \"sf\": \"+5,23\"}, {\"f\": \"8\/8\/2k4p\/ppN4P\/4b3\/4P3\/3K4\/8 w - - 2 52\", \"s\": \"Rc6\", \"u\": \"d7c6\", \"w\": false, \"n\": 51, \"c\": \"\", \"m\": \"\u22121,35 (prof.&nbsp;10, 5,5&nbsp;s)\", \"sf\": \"+5,96\"}, {\"f\": \"8\/8\/2k4p\/pp5P\/4N3\/4P3\/3K4\/8 b - - 0 52\", \"s\": \"Cxe4\", \"u\": \"c5e4\", \"w\": true, \"n\": 52, \"c\": \"\", \"m\": \"prof.&nbsp;12, 19&nbsp;s\", \"sf\": \"+6,59\"}, {\"f\": \"8\/8\/2k4p\/p6P\/1p2N3\/4P3\/3K4\/8 w - - 0 53\", \"s\": \"b4\", \"u\": \"b5b4\", \"w\": false, \"n\": 52, \"c\": \"\", \"m\": \"\u22121,67 (prof.&nbsp;9, 12&nbsp;s)\", \"sf\": \"+6,91\"}, {\"f\": \"8\/8\/2k2N1p\/p6P\/1p6\/4P3\/3K4\/8 b - - 1 53\", \"s\": \"Cf6\", \"u\": \"e4f6\", \"w\": true, \"n\": 53, \"c\": \"\", \"m\": \"prof.&nbsp;11, 19&nbsp;s\", \"sf\": \"+7,06\"}, {\"f\": \"8\/8\/2k2N1p\/7P\/pp6\/4P3\/3K4\/8 w - - 0 54\", \"s\": \"a4\", \"u\": \"a5a4\", \"w\": false, \"n\": 53, \"c\": \"<b>53\u2026a4.<\/b> Stockfish&nbsp;16&nbsp;: +34. D\u00e8s 56.Cxh6, il annonce un mat forc\u00e9.\", \"m\": \"\u22122,41 (prof.&nbsp;11, 23&nbsp;s)\", \"sf\": \"+34,18\"}, {\"f\": \"8\/8\/2k2N1p\/7P\/pp6\/4P3\/2K5\/8 b - - 1 54\", \"s\": \"Rc2\", \"u\": \"d2c2\", \"w\": true, \"n\": 54, \"c\": \"\", \"m\": \"prof.&nbsp;12, 19&nbsp;s\", \"sf\": \"+35,84\"}, {\"f\": \"8\/8\/5N1p\/2k4P\/pp6\/4P3\/2K5\/8 w - - 2 55\", \"s\": \"Rc5\", \"u\": \"c6c5\", \"w\": false, \"n\": 54, \"c\": \"\", \"m\": \"\u22122,69 (prof.&nbsp;9, 5,5&nbsp;s)\", \"sf\": \"+35,86\"}, {\"f\": \"8\/8\/7p\/2k4P\/pp4N1\/4P3\/2K5\/8 b - - 3 55\", \"s\": \"Cg4\", \"u\": \"f6g4\", \"w\": true, \"n\": 55, \"c\": \"\", \"m\": \"prof.&nbsp;11, 20&nbsp;s\", \"sf\": \"+35,86\"}, {\"f\": \"8\/8\/3k3p\/7P\/pp4N1\/4P3\/2K5\/8 w - - 4 56\", \"s\": \"Rd6\", \"u\": \"c5d6\", \"w\": false, \"n\": 55, \"c\": \"\", \"m\": \"\u22123,39 (prof.&nbsp;9, 16&nbsp;s)\", \"sf\": \"gain forc\u00e9\"}, {\"f\": \"8\/8\/3k3N\/7P\/pp6\/4P3\/2K5\/8 b - - 0 56\", \"s\": \"Cxh6\", \"u\": \"g4h6\", \"w\": true, \"n\": 56, \"c\": \"<b>56.Cxh6.<\/b> Le pion h devient pass\u00e9&nbsp;: les Blancs auront deux pions pass\u00e9s, e et h, contre le Roi seul.\", \"m\": \"prof.&nbsp;11, 20&nbsp;s\", \"sf\": \"mat en 51\"}, {\"f\": \"8\/8\/4k2N\/7P\/pp6\/4P3\/2K5\/8 w - - 1 57\", \"s\": \"Re6\", \"u\": \"d6e6\", \"w\": false, \"n\": 56, \"c\": \"\", \"m\": \"\u22123,38 (prof.&nbsp;9, 4,7&nbsp;s)\", \"sf\": \"mat en 36\"}, {\"f\": \"8\/8\/4k3\/7P\/pp4N1\/4P3\/2K5\/8 b - - 2 57\", \"s\": \"Cg4\", \"u\": \"h6g4\", \"w\": true, \"n\": 57, \"c\": \"\", \"m\": \"prof.&nbsp;11, 20&nbsp;s\", \"sf\": \"mat en 26\"}, {\"f\": \"8\/5k2\/8\/7P\/pp4N1\/4P3\/2K5\/8 w - - 3 58\", \"s\": \"Rf7\", \"u\": \"e6f7\", \"w\": false, \"n\": 57, \"c\": \"\", \"m\": \"\u22123,49 (prof.&nbsp;8, 3,4&nbsp;s)\", \"sf\": \"mat en 21\"}, {\"f\": \"8\/5k2\/7P\/8\/pp4N1\/4P3\/2K5\/8 b - - 0 58\", \"s\": \"h6\", \"u\": \"h5h6\", \"w\": true, \"n\": 58, \"c\": \"\", \"m\": \"prof.&nbsp;10, 15&nbsp;s\", \"sf\": \"mat en 19\"}, {\"f\": \"5k2\/8\/7P\/8\/pp4N1\/4P3\/2K5\/8 w - - 1 59\", \"s\": \"Rf8\", \"u\": \"f7f8\", \"w\": false, \"n\": 58, \"c\": \"\", \"m\": \"\u22124,19 (prof.&nbsp;9, 11&nbsp;s)\", \"sf\": \"mat en 18\"}, {\"f\": \"5k2\/8\/7P\/8\/pp2P1N1\/8\/2K5\/8 b - - 0 59\", \"s\": \"e4\", \"u\": \"e3e4\", \"w\": true, \"n\": 59, \"c\": \"\", \"m\": \"prof.&nbsp;10, 11&nbsp;s\", \"sf\": \"mat en 16\"}, {\"f\": \"8\/5k2\/7P\/8\/pp2P1N1\/8\/2K5\/8 w - - 1 60\", \"s\": \"Rf7\", \"u\": \"f8f7\", \"w\": false, \"n\": 59, \"c\": \"\", \"m\": \"\u22124,82 (prof.&nbsp;9, 5,8&nbsp;s)\", \"sf\": \"mat en 15\"}, {\"f\": \"8\/5k2\/7P\/4P3\/pp4N1\/8\/2K5\/8 b - - 0 60\", \"s\": \"e5\", \"u\": \"e4e5\", \"w\": true, \"n\": 60, \"c\": \"\", \"m\": \"prof.&nbsp;9, 8,6&nbsp;s\", \"sf\": \"mat en 14\"}, {\"f\": \"5k2\/8\/7P\/4P3\/pp4N1\/8\/2K5\/8 w - - 1 61\", \"s\": \"Rf8\", \"u\": \"f7f8\", \"w\": false, \"n\": 60, \"c\": \"\", \"m\": \"\u22126,34 (prof.&nbsp;7, 3,3&nbsp;s)\", \"sf\": \"mat en 13\"}, {\"f\": \"5k2\/8\/4P2P\/8\/pp4N1\/8\/2K5\/8 b - - 0 61\", \"s\": \"e6\", \"u\": \"e5e6\", \"w\": true, \"n\": 61, \"c\": \"\", \"m\": \"prof.&nbsp;10, 15&nbsp;s\", \"sf\": \"mat en 12\"}, {\"f\": \"5k2\/8\/4P2P\/8\/1p4N1\/p7\/2K5\/8 w - - 0 62\", \"s\": \"a3\", \"u\": \"a4a3\", \"w\": false, \"n\": 61, \"c\": \"Stockfish 68020 voit enfin l'issue&nbsp;: \u221259,28 \u00e0 17&nbsp;demi-coups, apr\u00e8s 72&nbsp;secondes de r\u00e9flexion.\", \"m\": \"\u221259,28 (prof.&nbsp;17, 72&nbsp;s)\", \"sf\": \"mat en 10\"}, {\"f\": \"5k2\/8\/4P2P\/8\/1p4N1\/pK6\/8\/8 b - - 1 62\", \"s\": \"Rb3\", \"u\": \"c2b3\", \"w\": true, \"n\": 62, \"c\": \"\", \"m\": \"prof.&nbsp;9, 15&nbsp;s\", \"sf\": \"mat en 11\"}, {\"f\": \"6k1\/8\/4P2P\/8\/1p4N1\/pK6\/8\/8 w - - 2 63\", \"s\": \"Rg8\", \"u\": \"f8g8\", \"w\": false, \"n\": 62, \"c\": \"\", \"m\": \"\u221263,04 (prof.&nbsp;15, 68&nbsp;s)\", \"sf\": \"mat en 11\"}, {\"f\": \"6k1\/8\/4PN1P\/8\/1p6\/pK6\/8\/8 b - - 3 63\", \"s\": \"Cf6+\", \"u\": \"g4f6\", \"w\": true, \"n\": 63, \"c\": \"\", \"m\": \"prof.&nbsp;9, 15&nbsp;s\", \"sf\": \"mat en 12\"}, {\"f\": \"5k2\/8\/4PN1P\/8\/1p6\/pK6\/8\/8 w - - 4 64\", \"s\": \"Rf8\", \"u\": \"g8f8\", \"w\": false, \"n\": 63, \"c\": \"\", \"m\": \"\u221215,95 (prof.&nbsp;12, 11&nbsp;s)\", \"sf\": \"mat en 12\"}, {\"f\": \"5k2\/8\/4P2P\/3N4\/1p6\/pK6\/8\/8 b - - 5 64\", \"s\": \"Cd5\", \"u\": \"f6d5\", \"w\": true, \"n\": 64, \"c\": \"\", \"m\": \"prof.&nbsp;9, 15&nbsp;s\", \"sf\": \"mat en 9\"}, {\"f\": \"6k1\/8\/4P2P\/3N4\/1p6\/pK6\/8\/8 w - - 6 65\", \"s\": \"Rg8\", \"u\": \"f8g8\", \"w\": false, \"n\": 64, \"c\": \"\", \"m\": \"\u221263,14 (prof.&nbsp;17, 83&nbsp;s)\", \"sf\": \"mat en 8\"}, {\"f\": \"6k1\/4P3\/7P\/3N4\/1p6\/pK6\/8\/8 b - - 0 65\", \"s\": \"e7\", \"u\": \"e6e7\", \"w\": true, \"n\": 65, \"c\": \"\", \"m\": \"prof.&nbsp;9, 15&nbsp;s\", \"sf\": \"mat en 7\"}, {\"f\": \"8\/4Pk2\/7P\/3N4\/1p6\/pK6\/8\/8 w - - 1 66\", \"s\": \"Rf7\", \"u\": \"g8f7\", \"w\": false, \"n\": 65, \"c\": \"\", \"m\": \"\u221266,85 (prof.&nbsp;17, 68&nbsp;s)\", \"sf\": \"mat en 7\"}, {\"f\": \"8\/4Pk1P\/8\/3N4\/1p6\/pK6\/8\/8 b - - 0 66\", \"s\": \"h7\", \"u\": \"h6h7\", \"w\": true, \"n\": 66, \"c\": \"Les deux pions blancs sont sur la 7<sup>e<\/sup> rang\u00e9e.\", \"m\": \"prof.&nbsp;8, 7&nbsp;s\", \"sf\": \"mat en 6\"}, {\"f\": \"8\/4P1kP\/8\/3N4\/1p6\/pK6\/8\/8 w - - 1 67\", \"s\": \"Rg7\", \"u\": \"f7g7\", \"w\": false, \"n\": 66, \"c\": \"\", \"m\": \"\u221266,85 (prof.&nbsp;16, 16&nbsp;s)\", \"sf\": \"mat en 6\"}, {\"f\": \"8\/4P1kP\/5N2\/8\/1p6\/pK6\/8\/8 b - - 2 67\", \"s\": \"Cf6\", \"u\": \"d5f6\", \"w\": true, \"n\": 67, \"c\": \"\", \"m\": \"prof.&nbsp;6, 1,9&nbsp;s\", \"sf\": \"mat en 5\"}, {\"f\": \"8\/4P1kP\/5N2\/8\/1p6\/1K6\/p7\/8 w - - 0 68\", \"s\": \"a2\", \"u\": \"a3a2\", \"w\": false, \"n\": 67, \"c\": \"\", \"m\": \"\u221262,85 (prof.&nbsp;13, 15&nbsp;s)\", \"sf\": \"mat en 5\"}, {\"f\": \"4Q3\/6kP\/5N2\/8\/1p6\/1K6\/p7\/8 b - - 0 68\", \"s\": \"e8=D\", \"u\": \"e7e8q\", \"w\": true, \"n\": 68, \"c\": \"\", \"m\": \"prof.&nbsp;4, 1,4&nbsp;s\", \"sf\": \"mat en 4\"}, {\"f\": \"4Q3\/6kP\/5N2\/8\/1p6\/1K6\/8\/n7 w - - 0 69\", \"s\": \"a1=C+\", \"u\": \"a2a1n\", \"w\": false, \"n\": 68, \"c\": \"<b>68\u2026a1=C+&nbsp;!<\/b> Sous-promotion&nbsp;: une Dame ou une Tour en a1 permettait un mat imm\u00e9diat. 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