{"id":869,"date":"2015-04-12T12:29:19","date_gmt":"2015-04-12T10:29:19","guid":{"rendered":"http:\/\/www.progresser-aux-echecs.com\/?p=869"},"modified":"2015-04-17T14:19:08","modified_gmt":"2015-04-17T12:19:08","slug":"championnat-des-etats-unis","status":"publish","type":"post","link":"https:\/\/progresser-aux-echecs.com\/?p=869","title":{"rendered":"Championnat des Etats-Unis"},"content":{"rendered":"<p><a href=\"http:\/\/www.progresser-aux-echecs.com\/wp-content\/uploads\/2015\/04\/usa_2015.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignright wp-image-871\" src=\"http:\/\/www.progresser-aux-echecs.com\/wp-content\/uploads\/2015\/04\/usa_2015-207x300.jpg\" alt=\"usa_2015\" width=\"150\" height=\"218\" \/><\/a>A une ronde de la fin <strong>Hikaru Nakamura<\/strong> est en t\u00eate avec 7 points sur 10, \u00e0 un demi point du surprenant <strong>Ray Robson<\/strong>.<\/p>\n<p>Voici une belle d\u00e9monstration de <strong>technique en finale<\/strong> par Alexander Onischuk, qui jouait jeudi contre le jeune Daniel Naroditsky.<\/p>\n<p>&nbsp;<\/p>\n<h3>Onischuk,Alexander (2665) &#8211; Naroditsky,Daniel (2633)<br \/>\nSaint Louis 2015<\/h3>\n<p style=\"text-align: center;\"><a href=\"http:\/\/www.progresser-aux-echecs.com\/wp-content\/uploads\/2015\/04\/oni-naro_37b.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-873\" src=\"http:\/\/www.progresser-aux-echecs.com\/wp-content\/uploads\/2015\/04\/oni-naro_37b.jpg\" alt=\"oni-naro_37b\" width=\"436\" height=\"436\" srcset=\"https:\/\/progresser-aux-echecs.com\/wp-content\/uploads\/2015\/04\/oni-naro_37b.jpg 436w, https:\/\/progresser-aux-echecs.com\/wp-content\/uploads\/2015\/04\/oni-naro_37b-150x150.jpg 150w, https:\/\/progresser-aux-echecs.com\/wp-content\/uploads\/2015\/04\/oni-naro_37b-300x300.jpg 300w\" sizes=\"auto, (max-width: 436px) 100vw, 436px\" \/><\/a>Les blancs jouent et gagnent.<\/p>\n<p style=\"text-align: center;\">Difficult\u00e9 2 sur 5<\/p>\n<p style=\"text-align: center;\"><!--more Voir la solution--><\/p>\n<p><strong>La solution :<\/strong><\/p>\n\n\n<p class=\"rpbchessboard-spacerBefore\"><\/p>\n\n<div class=\"rpbchessboard-chessgame\">\n    <noscript>\n        <div class=\"rpbchessboard-javascriptWarning\">\n            Vous devez activer JavaScript pour am\u00e9liorer l&#039;affichage des parties d&#039;\u00e9checs.        <\/div>\n    <\/noscript>\n    <div id=\"rpbchessboard-69f1fb4933a89-1\"><\/div>\n    <script type=\"text\/javascript\">\n        (function() {\n            function renderThisPGN() {\n                RPBChessboard.renderPGN(\"rpbchessboard-69f1fb4933a89-1\", {\"pgn\":\"[Event \\\"Cht-USA\\\"]\\r\\n[Site \\\"Saint Louis\\\"]\\r\\n[Date \\\"2015.04.09\\\"]\\r\\n[Round \\\"8\\\"]\\r\\n[White \\\"Onischuk, Alexander\\\"]\\r\\n[Black \\\"Naroditsky, Daniel\\\"]\\r\\n[Result \\\"1-0\\\"]\\r\\n[ECO \\\"E01\\\"]\\r\\n[WhiteElo \\\"2665\\\"]\\r\\n[BlackElo \\\"2633\\\"]\\r\\n[FEN \\\"b2r2k1\\\/p4pp1\\\/2prp3\\\/P5P1\\\/2PP4\\\/4RB2\\\/5PK1\\\/3R4 w - - 0 37\\\"]\\r\\n\\r\\n37. c5 $1 (37. Rb3 c5 $1 38. Bxa8 Rxa8 {n&rsquo;est pas clair.}) (37. Red3 c5 $1 38.\\r\\nBxa8 Rxa8 39. dxc5 Rc6 {avec du contre-jeu.}) 37... Rxd4 38. Rxd4 Rxd4 39. Rb3 Rd8 40. a6 $1 $18\\r\\n{Le Fa8 est d\\u00e9finitivement enferm\\u00e9.\\u00a0 Les blancs jouent maintenant avec un\\r\\nfou d&rsquo;avance.} Kf8 41. Be4 $1 {Ouvre la 3\\u00e8me rang\\u00e9e pour la tour.} f5 (41...\\r\\nKe7 42. Rh3 $1 {suivi de Th7 et de la centralisation du roi.}) 42. gxf6 gxf6\\r\\n43. Rh3 Kg8 44. Rd3 $1 {Une simplification. La technique habituelle quand on a\\r\\nune pi\\u00e8ce d&rsquo;avance !} Rxd3 (44... Rb8 45. Rd7 $18) 45. Bxd3 {Le plan de gain\\r\\ndes blancs : on monte le roi, le roi noir se trouve vite en zugzwang et doit\\r\\nbattre en retraite, on s&rsquo;engouffre et on capture les pions noirs.} f5 (45...\\r\\nKg7 46. Kg3 Kh6 47. Kh4 {Le roi noir doit maintenant reculer.}) 46. f4 Kg7 47.\\r\\nKf3 Kf6 48. Ke3 e5 (48... Ke7 49. Kd4 Kf6 50. Bc4 {Zugzwang, on continue avec\\r\\n51.Re5.}) 49. Bc4 {Zugzwang. Encore une technique classique quand on a roi et\\r\\npi\\u00e8ce contre roi seul.} (49. fxe5+ $4 Kxe5 {Le pion c5 est en danger, et s&rsquo;il\\r\\nest pris le Fa8 va rejouer.}) 49... e4 (49... exf4+ 50. Kxf4 Kg6 51. Be6 {et\\r\\n52.Fxf5.}) 50. Kd4 {Les blancs vont jouer 51.Re5 et capturer le pion f5.} 1-0\",\"pieceSymbols\":\"figurines\",\"navigationBoard\":\"frame\",\"withPlayButton\":true,\"withFlipButton\":true,\"withDownloadButton\":true,\"nboSquareSize\":35,\"nboCoordinateVisible\":true,\"nboTurnVisible\":true,\"nboColorset\":\"scid\",\"nboPieceset\":\"cburnett\",\"nboAnimated\":true,\"nboMoveArrowVisible\":false,\"nboMoveArrowColor\":\"b\",\"nboSound\":true,\"idoSquareSize\":35,\"idoCoordinateVisible\":true,\"idoTurnVisible\":true,\"idoColorset\":\"scid\",\"idoPieceset\":\"cburnett\"});\n            }\n            if (document.readyState === 'loading') {\n                document.addEventListener('DOMContentLoaded', renderThisPGN);\n            }\n            else {\n                renderThisPGN();\n            }\n        })();\n    <\/script>\n<\/div>\n\n<p class=\"rpbchessboard-spacerAfter\"><\/p>\n\n<p><a href=\"http:\/\/www.uschesschamps.com\/\">Le site officiel<\/a> du championnat<\/p>\n","protected":false},"excerpt":{"rendered":"<p>A une ronde de la fin Hikaru Nakamura est en t\u00eate avec 7 points sur 10, \u00e0 un demi point du surprenant Ray Robson. Voici une belle d\u00e9monstration de technique en finale par Alexander Onischuk, qui jouait jeudi contre le jeune Daniel Naroditsky. &nbsp; Onischuk,Alexander (2665) &#8211; Naroditsky,Daniel (2633) Saint Louis 2015 Les blancs jouent&hellip; <a class=\"more-link\" href=\"https:\/\/progresser-aux-echecs.com\/?p=869\">Poursuivre la lecture <span class=\"screen-reader-text\">Championnat des Etats-Unis<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[12],"tags":[10,8,7],"class_list":["post-869","post","type-post","status-publish","format-standard","hentry","category-exercice-du-mois","tag-cours","tag-echecs","tag-progresser","entry"],"_links":{"self":[{"href":"https:\/\/progresser-aux-echecs.com\/index.php?rest_route=\/wp\/v2\/posts\/869","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/progresser-aux-echecs.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/progresser-aux-echecs.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/progresser-aux-echecs.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/progresser-aux-echecs.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=869"}],"version-history":[{"count":12,"href":"https:\/\/progresser-aux-echecs.com\/index.php?rest_route=\/wp\/v2\/posts\/869\/revisions"}],"predecessor-version":[{"id":893,"href":"https:\/\/progresser-aux-echecs.com\/index.php?rest_route=\/wp\/v2\/posts\/869\/revisions\/893"}],"wp:attachment":[{"href":"https:\/\/progresser-aux-echecs.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=869"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/progresser-aux-echecs.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=869"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/progresser-aux-echecs.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=869"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}