{"id":18915,"date":"2020-05-01T22:43:16","date_gmt":"2020-05-01T21:43:16","guid":{"rendered":"http:\/\/www.sachyuo.cz\/?p=18915"},"modified":"2020-05-01T22:43:53","modified_gmt":"2020-05-01T21:43:53","slug":"virove-lekce-zacatecnici-xxvii","status":"publish","type":"post","link":"https:\/\/www.sachyuo.cz\/?p=18915","title":{"rendered":"Virov\u00e9 lekce – za\u010d\u00e1te\u010dn\u00edci XXVII"},"content":{"rendered":"\n

Mo\u017enosti st\u0159elce
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Trochu jsem p\u0159em\u00fd\u0161lel, jestli m\u00e1m je\u0161t\u011b n\u011bco ukazovat a co. Abyste rozum\u011bli, je\u0161t\u011b jste se \u00fapln\u011b v\u0161echno ze \u0161achu nenau\u010dili, je\u0161t\u011b jsme nedo\u0161li na konec. Ale to hlavn\u00ed je a je\u0161t\u011b dlouho bude po\u0159\u00e1d znova hr\u00e1t a cvi\u010dit z\u00e1kladn\u00ed taktiku – napad\u00e1n\u00ed, \u00fastup, kryt\u00ed figur. Prvn\u00ed a druh\u00e9 zlat\u00e9 pravidlo (co mi m\u016f\u017ee ud\u011blat soupe\u0159).

Ale p\u0159ece jen jsem se rozhodl za\u010d\u00edt se strategi\u00ed, postupn\u011b se pod\u00edv\u00e1me na mo\u017enosti figur.

St\u0159elec<\/strong> tah\u00e1 \u0161ikmo po diagon\u00e1l\u00e1ch a z toho vypl\u00fdv\u00e1, \u017ee pot\u0159ebuje voln\u00e9 diagon\u00e1ly<\/strong>, \u010d\u00edm del\u0161\u00ed, t\u00edm lep\u0161\u00ed.

N\u011bkolik p\u0159\u00edklad\u016f, kde st\u0159elec obsadil p\u011bknou diagon\u00e1lu:

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Diagon\u00e1lu uzav\u00edraj\u00ed zejm\u00e9na p\u011b\u0161ci – obecn\u011bji: st\u0159elci vad\u00ed p\u011b\u0161ci<\/strong> – vlastn\u00ed i soupe\u0159ovi. N\u011bkolik uk\u00e1zek velmi \u0161patn\u00e9ho st\u0159elce:

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Diagon\u00e1lu je mo\u017en\u00e9 bu\u010f obsadit, nebo taky uvolnit. St\u0159elc\u016fm vyhovuje otev\u0159en\u00ed pozice<\/strong>, kdy se m\u011bn\u00ed p\u011b\u0161ci a p\u0159est\u00e1vaj\u00ed st\u0159elc\u016fm p\u0159ek\u00e1\u017eet.

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B\u00edl\u00fd tu hraje\u00a01. d5!<\/strong> a jednak otev\u00edr\u00e1 dr\u00e1hu st\u0159elci b2, jednak v\u00fdm\u011bnou odstran\u00ed pe6, kter\u00fd omezuje Sa2. Jedn\u00edm tahem tak vylep\u0161\u00ed oba st\u0159elce.

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<\/a>Oba b\u00edl\u00ed st\u0159elci zat\u00edm stoj\u00ed \u0161patn\u011b, a kdyby byl na tahu \u010dern\u00fd, zahraje Jc6, vezme pod kontrolu pole d4 a pozice je rem\u00edzov\u00e1. Ale b\u00edl\u00fd otev\u00edr\u00e1 hru:\u00a01. d4! exd4\u00a0<\/strong>(1. … Jc6 2, d5 +-)\u00a02. Sxd4+\u00a0<\/strong>Jeden st\u0159elec hraje.\u00a02. … Kc7 3. e5!\u00a0<\/strong>A u\u017e hraj\u00ed oba st\u0159elci a \u010dern\u00fd stoj\u00ed \u0161patn\u011b.

N\u011bkdy je mo\u017en\u00e9 za otev\u0159en\u00ed dr\u00e1hy nebo pozice pro st\u0159elce i n\u011bco ob\u011btovat.

Tohle je slavn\u00fd z\u00e1v\u011br partie mistra sv\u011bta Aljechin – Johner, Curych 1934<\/strong>:

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<\/a>B\u00edl\u00fd st\u0159elec je omezen vlastn\u00edmi p\u011b\u0161ci a moc mu nepom\u016f\u017ee ani j\u00edt p\u0159es a4 – pole, kam by mohl doj\u00edt (t\u0159eba d7, f7, g6) jsou kryt\u00e1. Ale zkuste si p\u0159edstavit, \u017ee by b\u00edl\u00ed p\u011b\u0161ci zmizeli! R\u00e1zem by byl ze st\u0159elce d\u00e9mon a po Sb3+ by m\u011bl \u010dern\u00fd probl\u00e9m.

Proto Aljechin ob\u011btoval dokonce n\u011bkolik p\u011b\u0161c\u016f:\u00a044. e5!! dxe5\u00a0<\/strong>Kdyby \u010dern\u00fd nebral, b\u00edl\u00fd by zahr\u00e1l e6 a p\u011b\u0161ec by byl obrovsky siln\u00fd. Kdyby hr\u00e1l 44. … fxe5, p\u0159i\u0161lo by 45. f6!! Dxf6 46. Dxg4+ Kf7 47. Se4, b\u00edl\u00fd by dostal p\u011b\u0161ce f3 a m\u011bl by \u00fatok.\u00a045. d6!!<\/strong> \u0160lo i 45. c5!! bxc5 46. Sb3 se stra\u0161nou hrozbou d6+.\u00a045. … c5\u00a0<\/strong>Nejhez\u010d\u00ed to je po 45. … cxd6 46. c5!! – ob\u011b\u0165 t\u0159et\u00edho p\u011b\u0161ce a po jeho bran\u00ed Sb3+.\u00a046. Se4!<\/strong> A st\u0159elec se dostane na d5.\u00a046. … Dd7 47. Dh6!\u00a0<\/strong>Ne\u017e d\u00e1 \u0161ach po b\u00edl\u00fdch pol\u00edch, bere kr\u00e1li \u010dern\u00e1. \u010cern\u00fd se vzdal, nepom\u016f\u017ee ani 47. … Kf7 48. Sd5+ Ke8 49. Dxf6.<\/p>\n

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\u010cern\u00fd nem\u00e1 dobr\u00e9 tahy, hroz\u00ed mu hlavn\u011b 50. Sc6!! Dxc6 51. De7 mat, po 49. … Jh7 je 50. Dh8+! Jf8 51. Dxe5+ Kd8 52. Df6+. To nejsou snadn\u00e9 varianty, ale sta\u010d\u00ed si v\u0161imnout, jak se v porovn\u00e1n\u00ed s minul\u00fdm diagramem\u00a0rozehr\u00e1l b\u00edl\u00fd st\u0159elec<\/strong>.

Tak\u017ee: m\u00e1te doma st\u0159elce? Po\u0159i\u010fte mu diagon\u00e1lu!<\/p>\n","protected":false},"excerpt":{"rendered":"

Mo\u017enosti st\u0159elceTrochu jsem p\u0159em\u00fd\u0161lel, jestli m\u00e1m je\u0161t\u011b n\u011bco ukazovat a co. Abyste rozum\u011bli, je\u0161t\u011b jste se \u00fapln\u011b v\u0161echno ze \u0161achu nenau\u010dili, je\u0161t\u011b jsme nedo\u0161li na konec. Ale to hlavn\u00ed je a je\u0161t\u011b dlouho bude po\u0159\u00e1d znova hr\u00e1t a cvi\u010dit z\u00e1kladn\u00ed taktiku – napad\u00e1n\u00ed, \u00fastup, kryt\u00ed figur. Prvn\u00ed a druh\u00e9 zlat\u00e9 pravidlo (co mi m\u016f\u017ee ud\u011blat […]<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"ngg_post_thumbnail":0,"footnotes":"","_links_to":"","_links_to_target":""},"categories":[7,12],"tags":[],"class_list":["post-18915","post","type-post","status-publish","format-standard","hentry","category-mladez","category-trenink"],"_links":{"self":[{"href":"https:\/\/www.sachyuo.cz\/index.php?rest_route=\/wp\/v2\/posts\/18915","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.sachyuo.cz\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.sachyuo.cz\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.sachyuo.cz\/index.php?rest_route=\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/www.sachyuo.cz\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=18915"}],"version-history":[{"count":2,"href":"https:\/\/www.sachyuo.cz\/index.php?rest_route=\/wp\/v2\/posts\/18915\/revisions"}],"predecessor-version":[{"id":18928,"href":"https:\/\/www.sachyuo.cz\/index.php?rest_route=\/wp\/v2\/posts\/18915\/revisions\/18928"}],"wp:attachment":[{"href":"https:\/\/www.sachyuo.cz\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=18915"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.sachyuo.cz\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=18915"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.sachyuo.cz\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=18915"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}