{"id":3116,"date":"2026-02-08T07:54:00","date_gmt":"2026-02-08T07:54:00","guid":{"rendered":"https:\/\/www.chess.lumn.eu\/wordpress\/?p=3116"},"modified":"2026-02-25T14:50:44","modified_gmt":"2026-02-25T14:50:44","slug":"cray-blitz-lheritage-echiqueen-sur-pc-copy","status":"publish","type":"post","link":"https:\/\/www.chess.lumn.eu\/wordpress\/2026\/02\/08\/cray-blitz-lheritage-echiqueen-sur-pc-copy\/","title":{"rendered":"Cray Blitz 4.9h: 2531 points elo sur Ryzen 9"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"3116\" class=\"elementor elementor-3116\">\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-c3a7b5f elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"c3a7b5f\" 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-a446fde\" data-id=\"a446fde\" 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-d82e260 elementor-widget elementor-widget-heading\" data-id=\"d82e260\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Cray Blitz 4.9h : 2531 points elo sur Ryzen 9<\/h2>\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<section class=\"elementor-section elementor-top-section elementor-element elementor-element-f119eac elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"f119eac\" 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-90bc643\" data-id=\"90bc643\" 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-6bcff28 elementor-widget elementor-widget-html\" data-id=\"6bcff28\" data-element_type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\n    .king-intro-wrapper {\n        --k-gold: #b8922e;\n        --k-blue: #002347;\n        --k-cream: #fffdf5;\n        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class=\"king-intro-wrapper\">\n    <article class=\"king-intro\">\n        <h1>Analyse Diff\u00e9rentielle : Rebel 6<\/h1>\n        <div class=\"subtitle\">\n            Calibration Elo via Mesures Mat\u00e9rielles et Limitation BES\n        <\/div>\n\n    <div class=\"context-box\">\n            <p>\n                <span class=\"dropcap\">L<\/span>'int\u00e9gration de <strong>Rebel 6 brid\u00e9 \u00e0 1%<\/strong> sert d'\u00e9talon scientifique \u00e0 cette \u00e9tude. Plut\u00f4t que de reposer sur des th\u00e9ories, sa force de 2483 Elo est ancr\u00e9e dans la r\u00e9alit\u00e9 historique : elle d\u00e9coule directement de la corr\u00e9lation entre ses vitesses de calcul sous Dosbox et les classements officiels SSDF de 1996. Cet ancrage permet de mesurer la puissance de Cray Blitz non pas dans le vide, mais par rapport \u00e0 une r\u00e9f\u00e9rence absolue de l'\u00e2ge d'or des \u00e9checs informatiques.\n            <\/p>\n        <\/div>\n\n        <h3>1. D\u00e9rivation du Coefficient de Performance (60 Elo)<\/h3>\n        <p>\n            Le gain de 60 points Elo pour un doublement de la puissance de calcul n'est pas une r\u00e8gle arbitraire, mais une d\u00e9duction issue de la comparaison entre les architectures 486 et Pentium 90 (P90) :\n        <\/p>\n        <ul>\n            <li><strong>\u00c9cart SSDF :<\/strong> La liste de mars 1996 affiche 2307 Elo pour le 486\/66 et 2415 Elo pour le P90, soit un diff\u00e9rentiel de 108 points.<\/li>\n            <li><strong>Vitesse de calcul :<\/strong> La mesure de r\u00e9solution d'un diagramme sous Dosbox montre que le P90 est environ 3,5 fois plus rapide que le 486\/66.<\/li>\n            <li><strong>R\u00e9sultat :<\/strong> En appliquant le ratio logarithmique \u00e0 cet \u00e9cart de 108 points, on obtient la valeur pivot de <strong>60 points Elo<\/strong> par doublement de vitesse.<\/li>\n        <\/ul>\n\n        <h3>2. R\u00e9f\u00e9rentiel Historique SSDF<\/h3>\n        <table class=\"king-table\">\n            <thead>\n                <tr>\n                    <th>Architecture<\/th>\n                    <th>Score SSDF (Elo)<\/th>\n                    <th>Diff\u00e9rentiel<\/th>\n                <\/tr>\n            <\/thead>\n            <tbody>\n                <tr>\n                    <td>Rebel 6.0 (Pentium 90 MHz)<\/td>\n                    <td>2415<\/td>\n                    <td>\u2014<\/td>\n                <\/tr>\n                <tr>\n                    <td>Rebel 6.0 (486 \/ 50-66 MHz)<\/td>\n                    <td>2307<\/td>\n                    <td>- 108 points<\/td>\n                <\/tr>\n            <\/tbody>\n        <\/table>\n\n        <h3>3. Protocole de Test sur Ryzen 9 via BES<\/h3>\n        <p>\n            Le benchmark actuel mesure le temps requis pour atteindre la profondeur 10 (10 ply). L'utilisation de l'utilitaire <strong>BES (Battle Encoder Shirase)<\/strong> a permis de brider le thread du Ryzen 9 \u00e0 <strong>1% de sa capacit\u00e9<\/strong> afin de cr\u00e9er un point de comparaison stable. \n            BES intervient au niveau logiciel pour suspendre p\u00e9riodiquement l'activit\u00e9 du processus, simulant ainsi fid\u00e8lement une puissance de calcul r\u00e9duite sur un processeur haute fr\u00e9quence.\n        <\/p>\n        \n        <div class=\"math-block\">\n            486\/66 (Dosbox) : 198 secondes<br>\n            Ryzen 9 (1% BES) : 26 secondes<br><br>\n            Ratio de vitesse (R) = 198 \/ 26 = 7.615<br>\n            Calcul du Gain : [Log(7.615) \/ Log(2)] x 60 = +176 Elo\n        <\/div>\n\n        <h3>4. Estimation de la Force Finale<\/h3>\n        <table class=\"king-table\">\n            <thead>\n                <tr>\n                    <th>M\u00e9trique de Calibration<\/th>\n                    <th>R\u00e9sultat Elo<\/th>\n                <\/tr>\n            <\/thead>\n            <tbody>\n                <tr>\n                    <td>Base SSDF 486\/66<\/td>\n                    <td>2307<\/td>\n                <\/tr>\n                <tr>\n                    <td><strong>Estimation Ryzen 9 (Bridage BES 1%)<\/strong><\/td>\n                    <td><strong>2483<\/strong><\/td>\n                <\/tr>\n            <\/tbody>\n        <\/table>\n\n        <p>\n            Cette analyse d\u00e9montre qu'en lib\u00e9rant seulement 1% de la puissance d'un Ryzen 9, Rebel 6 atteint 2483 Elo, validant la sup\u00e9riorit\u00e9 des architectures modernes m\u00eame dans un \u00e9tat de bridage extr\u00eame par rapport aux syst\u00e8mes de r\u00e9f\u00e9rence de 1996.\n        <\/p>\n\n        <div class=\"timeline-box\">\n            \u00c9tude de calibration (F\u00e9vrier 2026)<br>\n            Corr\u00e9lation Dosbox\/P90\/SSDF \u2014 Limitation logicielle BES\n        <\/div>\n\n        <div class=\"signature\">Valter<\/div>\n    <\/article>\n<\/div>\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<section class=\"elementor-section elementor-top-section elementor-element elementor-element-ad54d62 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"ad54d62\" 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-8f61d0c\" data-id=\"8f61d0c\" data-element_type=\"column\">\n\t\t\t<div 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12px;\n        border-bottom: 1px solid rgba(184, 146, 46, 0.2);\n    }\n\n    .king-table tr.highlight {\n        background-color: rgba(184, 146, 46, 0.1);\n        font-weight: bold;\n    }\n\n    .math-block {\n        background: rgba(0, 35, 71, 0.03);\n        padding: 25px;\n        border-left: 3px solid var(--k-blue);\n        margin: 25px 0;\n        font-family: 'Courier New', Courier, monospace;\n    }\n\n    .final-badge {\n        border: 2px solid var(--k-gold);\n        padding: 30px;\n        margin: 40px 0;\n        text-align: center;\n        background-color: #fff;\n    }\n\n    .final-badge .elo-value {\n        font-size: 3em;\n        display: block;\n        color: var(--k-blue);\n        font-weight: bold;\n        margin: 10px 0;\n    }\n\n    .signature {\n        margin-top: 40px;\n        text-align: right;\n        font-family: 'Brush Script MT', cursive;\n        font-size: 1.8em;\n        color: var(--k-blue);\n    }\n<\/style>\n\n<div class=\"king-intro-wrapper\">\n    <article class=\"king-intro\">\n        <h1>\u00c9valuation de Force : Cray Blitz 4.9h<\/h1>\n        <div class=\"subtitle\">Architecture Ryzen 9 7950X3D \u2014 Rapport de Gauntlet<\/div>\n\n        <p>\n            Ce document \u00e9tablit la force brute de <strong>Cray Blitz 4.9h (version 1990)<\/strong> op\u00e9rant sur une architecture moderne Zen 4. La m\u00e9thodologie repose sur un tournoi de type Gauntlet de 70 parties contre un \u00e9chantillon de moteurs de r\u00e9f\u00e9rence aux Elo certifi\u00e9s.\n        <\/p>\n\n        <h3>Table de Justification des R\u00e9sultats<\/h3>\n        <table class=\"king-table\">\n            <thead>\n                <tr>\n                    <th>Rang<\/th>\n                    <th>Moteur Adverse<\/th>\n                    <th>Elo R\u00e9f.<\/th>\n                    <th>Score<\/th>\n                    <th>Pourcentage<\/th>\n                <\/tr>\n            <\/thead>\n            <tbody>\n                <tr class=\"highlight\">\n                    <td>1<\/td>\n                    <td><strong>Cray Blitz 4.9h (Ryzen 9)<\/strong><\/td>\n                    <td>-<\/td>\n                    <td><strong>56.0 \/ 70<\/strong><\/td>\n                    <td><strong>80.0%<\/strong><\/td>\n                <\/tr>\n                <tr>\n                    <td>2<\/td>\n                    <td>Rebel 6.0 (1% BES)<\/td>\n                    <td>2483<\/td>\n                    <td>6.0 \/ 10<\/td>\n                    <td>60.0%<\/td>\n                <\/tr>\n                <tr>\n                    <td>3<\/td>\n                    <td>Mephisto Genius 68030 London<\/td>\n                    <td>2357<\/td>\n                    <td>2.5 \/ 10<\/td>\n                    <td>25.0%<\/td>\n                <\/tr>\n                <tr>\n                    <td>4<\/td>\n                    <td>Novag Star Diamond (v1.04)<\/td>\n                    <td>2221<\/td>\n                    <td>2.5 \/ 10<\/td>\n                    <td>25.0%<\/td>\n                <\/tr>\n                <tr>\n                    <td>5<\/td>\n                    <td>Mephisto Berlin Pro 68020<\/td>\n                    <td>2322<\/td>\n                    <td>2.0 \/ 10<\/td>\n                    <td>20.0%<\/td>\n                <\/tr>\n                <tr>\n                    <td>6<\/td>\n                    <td>Saitek RISC 2500 v1.04<\/td>\n                    <td>2245<\/td>\n                    <td>1.0 \/ 10<\/td>\n                    <td>10.0%<\/td>\n                <\/tr>\n                <tr>\n                    <td>7<\/td>\n                    <td>Mephisto RISC II<\/td>\n                    <td>2248<\/td>\n                    <td>0.0 \/ 10<\/td>\n                    <td>0.0%<\/td>\n                <\/tr>\n                <tr>\n                    <td>8<\/td>\n                    <td>Saitek Sparc (rev.518)<\/td>\n                    <td>2152<\/td>\n                    <td>0.0 \/ 10<\/td>\n                    <td>0.0%<\/td>\n                <\/tr>\n            <\/tbody>\n        <\/table>\n\n        <h3>Calcul de la Performance Elo (Rp)<\/h3>\n        <p>\n            La force est calcul\u00e9e en utilisant la moyenne d'opposition  pond\u00e9r\u00e9e par le score global obtenu sur l'ensemble du Gauntlet.\n        <\/p>\n        <div class=\"math-block\">\n            Moyenne Opposition (Ra) : 2289.7 Elo<br>\n            Score de Cray Blitz : 56 \/ 70 (W = 0.80)<br>\n            Diff\u00e9rentiel (D) : 400 * Log10( 0.80 \/ 0.20 ) = +240.8<br>\n            <strong>Performance Finale : 2289.7 + 240.8 = 2530.5 Elo<\/strong>\n        <\/div>\n\n        <div class=\"final-badge\">\n            <span style=\"font-variant: small-caps; letter-spacing: 2px;\">Force Estim\u00e9e sur Ryzen 9 7950X3D<\/span>\n            <span class=\"elo-value\">2531 ELO<\/span>\n            <span>Niveau Grand Ma\u00eetre International (GMI)<\/span>\n        <\/div>\n\n        <p>\n            L'analyse d\u00e9montre que l'apport de la technologie <strong>3D V-Cache<\/strong> du Ryzen 9, combin\u00e9 \u00e0 la maturit\u00e9 de la version 4.9h de Cray Blitz, permet d'atteindre un niveau de jeu qui sature les capacit\u00e9s tactiques des machines d\u00e9di\u00e9es les plus prestigieuses de l'histoire.\n        <\/p>\n\n        <div class=\"signature\">Valter<\/div>\n    <\/article>\n<\/div>\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>Propuls\u00e9 par la puissance brute du Ryzen 9 7950X3D, Cray Blitz 4.9h (1990) \u00e9tablit une performance de 2531 Elo en dominant largement les machines d\u00e9di\u00e9es de r\u00e9f\u00e9rence. Ce score de 80% contre une opposition moyenne de 2290 Elo le place au niveau d&#8217;un Grand Ma\u00eetre International tactique. L&#8217;\u00e9tude d\u00e9montre toutefois que Rebel 6 (1996) conserve l&#8217;avantage strat\u00e9gique malgr\u00e9 un bridage extr\u00eame \u00e0 1% de processeur.<\/p>\n","protected":false},"author":1,"featured_media":3299,"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":[37],"tags":[],"rttpg_featured_image_url":{"full":["https:\/\/www.chess.lumn.eu\/wordpress\/wp-content\/uploads\/2026\/02\/Gemini_Generated_Image_mgj4r5mgj4r5mgj4.png",1120,928,false],"landscape":["https:\/\/www.chess.lumn.eu\/wordpress\/wp-content\/uploads\/2026\/02\/Gemini_Generated_Image_mgj4r5mgj4r5mgj4.png",1120,928,false],"portraits":["https:\/\/www.chess.lumn.eu\/wordpress\/wp-content\/uploads\/2026\/02\/Gemini_Generated_Image_mgj4r5mgj4r5mgj4.png",1120,928,false],"thumbnail":["https:\/\/www.chess.lumn.eu\/wordpress\/wp-content\/uploads\/2026\/02\/Gemini_Generated_Image_mgj4r5mgj4r5mgj4-150x150.png",150,150,true],"medium":["https:\/\/www.chess.lumn.eu\/wordpress\/wp-content\/uploads\/2026\/02\/Gemini_Generated_Image_mgj4r5mgj4r5mgj4-300x249.png",300,249,true],"large":["https:\/\/www.chess.lumn.eu\/wordpress\/wp-content\/uploads\/2026\/02\/Gemini_Generated_Image_mgj4r5mgj4r5mgj4-1024x848.png",1024,848,true],"1536x1536":["https:\/\/www.chess.lumn.eu\/wordpress\/wp-content\/uploads\/2026\/02\/Gemini_Generated_Image_mgj4r5mgj4r5mgj4.png",1120,928,false],"2048x2048":["https:\/\/www.chess.lumn.eu\/wordpress\/wp-content\/uploads\/2026\/02\/Gemini_Generated_Image_mgj4r5mgj4r5mgj4.png",1120,928,false],"neve-blog":["https:\/\/www.chess.lumn.eu\/wordpress\/wp-content\/uploads\/2026\/02\/Gemini_Generated_Image_mgj4r5mgj4r5mgj4-930x620.png",930,620,true]},"rttpg_author":{"display_name":"valterd","author_link":"https:\/\/www.chess.lumn.eu\/wordpress\/author\/valterd\/"},"rttpg_comment":0,"rttpg_category":"<a href=\"https:\/\/www.chess.lumn.eu\/wordpress\/category\/soft\/\" rel=\"category tag\">Soft<\/a>","rttpg_excerpt":"Propuls\u00e9 par la puissance brute du Ryzen 9 7950X3D, Cray Blitz 4.9h (1990) \u00e9tablit une performance de 2531 Elo en dominant largement les machines d\u00e9di\u00e9es de r\u00e9f\u00e9rence. Ce score de 80% contre une opposition moyenne de 2290 Elo le place au niveau d'un Grand Ma\u00eetre International tactique. 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