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.strong as White's attack appears to ,it is an illusion; the weak isolani willeventually give Black the advantage.18.lle3ed8 19.c3 Ad5 20.Ae4Blockading the isolani can lead not onlyfl)e6 Basic positional policy againstto winning the pawn, but can also crean isolated pawn, blockading andate considerable counterplay.Laskerattacking.21.Now White hasf3demonstrates this simple idea, and thenthe weak pawn on to attack, butMarshall shows how complicated it'sLasker has tactical responses to inexecution can be in the following concrease his advantage.21.h4test between the two Grandmasters.22.Ad5 d5 This new blockadýÿforetells the isolani's extinction.23.e1( 111) Marshall, F-Lasker, EmIf 23.f7?! then 23.t0d4 (threateningMoscow 1925both 24.e5 and 24.t0e2) 24.'ii'c4fl)f6 4.Ag51.d4 d5 2.c4 e6 3.il)c3 {24.el e5) 24.b5 follows.23.fl)d4fl) 7 5.e3 c6 6.cd5 ed5 7.Ad324.ID"e3 ýÿ:ladS Both players haved6 8.il)f3 0-0 9.'«fc2 h6 10.Ah4similar advantages in the position, anlleS U.0-0 fl)f8 12.e4 de4 It is veryopen file with doubled l:ts and centraldifficult for Black to avoid the isolani.ized.Black does have an extra pawn, but it is the better placement of his(112) Maroczy,G-Lasker,Edpieces that wins the game.The Black 'LlNew York 1924actually has more tactical possibilitiesl.e4 e6 2.ýÿf3 d5 3.d4 ýÿ6 4.ýÿe3than its counterpart, and the Black 'Wýÿbd7 5.Ag5 Ab4 6.ed5 ed5 7.e3can support an attack far more easilye6 8.Ad3 0-0 9.0-0 ,ble8 10.e2than White's.25.l::te4 Y!'!Vf6 26.ýÿg4h6 ll.Ah4 ýÿf8 12.a3 Ae7 13.b4g6 27.h3 h5 28.ýÿe5 "t'fd6g5 t4.Ag3 ýÿh5 t5.Ae5 Ae629.ýÿe4 b8 30.ýÿe5 e5 Now it is16.b5 f6 17.Ag3 e5 18.de5 ýÿg3clearly a matter of the technique to win19.hg3 Ae5 20.ýÿe2 Securing thethe game.Yet being the tactical geniusd4 square, which remains a prime strahe was, Marshall has not given up fighttegic point throughout the game.ing yet.31.'9Wel e7 32.b4 ýÿe620 21."t'fb2 ýÿd7 22.ýÿed4.e733.\Ja3 dl Lasker demonstratesýÿe5 23.Ae 2 ae8 24.b(fdlthat he is also no stranger to tactics.White's plans have been centered34.5 e5 35.\Jf3 ýÿg5 36.\Jh5bcaround the d4 square.Overprotectionl':l8d21 37.ýÿd3of strategically important squares is ani mportant principle in positionalthought, and was well known even 70years ago.24.Af7 25.a4 Ab426.b(abl Ae5 27.@b3 d7 Blackis playing without a plan of action.Therestriction of his choices by the opposing blockade places him in a totallydefensive posture.28.b(bel Af829.a5.tiel 30.b(el bleB 31.e2ýÿe4 32.a6 ba6 On 32.b6 33.lt:lc6Black's difficulties become worse.33.ba6 So far White has used hisblockade to maintain the initiative, re37.ýÿe411 Beautiful.The l:ts will besulting in Black's weak a-pawn.Thistoo much for White's 'iW.38.ýÿe5weakness is highlighted by the adet 39.wh2 ýÿf2 40.f5 :esvanced White a-pawn, which can alsoPreventing the draw by perpetualsupport infiltration along the b-file withcheck.41.ýÿb7 ýÿdl 42.\Je5 ,ble6its control of the b7 square.33.d643.el ýÿ3 44.c8 44.'N!Yd2?? lt:lfl.34.,bla2 ýÿe5 35.'1Jdl b6 Not1t'e344.wh7 45.'«Je3 l::t 46.g6.35.lt:lf3?!, which would simply removedg2 47.wht bl2g3, o-1Black's most active piece from theboard and weaken the isolani's defense.The next game is a classic study in the36.at.blbs 37.ýÿf5 Vb3 38.fluse of blockading strategy to maintain.blb6 39.ýÿ3d4 b2 4o.ýÿb5 Ah5the initiative.In order to indirectly protect the weakness on a 7, Black is forced to weakenhis defense of dS.4t.Ah5 b542.Ae2 l:.tb8 43.'tVdll Winning the 00 lVI IUU l gam L il gyisolani.43.b3 If 43.d8 44.l::ta5and the weak pawn is lost.b3b3 45.dt b2 46.wfl c647.Dd5 M 4s.ýÿdt wh7 49.g4c6 50.d7 whs 5t.Af3 nht52.we2 Dh2 53.wdt Dht 54.wd2b2 55.wc3 b6 56.Ae2 b457.wc2 Aa3 5S.b7 Ac5 59.h6e5 60.Ad31 Avoiding a possible ýÿsof opposite color ending, which wouldgive Black drawing chances.60.d36t.b6 et 62.wdt Ab6 63.wetwg7 64.f5 wf7 65.d2 we6Alexander Baburin's interesting com66.wc3 wd5 67.wb4 wc6 6S.e7ment here is worth repeating: "This is ac.Yd6 69.gS After 69.'0c8 ýÿc6very dubious decision - the White ýÿ70.cob6? ýÿb6 the ýÿ and ýÿ ending iswas not particularly active, while thedrawn.69.Ads 70.wb5 wd5Black one was rather useful, being able7t.h6 Ab6 72.f5 Ads 73.f3to control the d4 square." Control ofAb6 74.g3 Ads 75.e4 we5the d4 square is important to both sides,76.wc6 Ab6 77.d6 Af2and both.is are able to exert pressure7S.cS, 1-0on d4.White wishes to control d4 toblockade the isolani; Black wishes toIn the next game Black trys to removecontrol d4 to support his d-pawn's ada possible blockading piece, but onlyvance.Ergo, this exchange is dubiousexchanges off the piece best suited tofor Black because White can replacehis isolani's advance.After this dubiousthe ýÿ as a blockader with his l:l.Blackidea he is doomed to live with the blockhas a difficult time finding pieces toade on d4 without opportunities forsupport an advance of his isolani, piecescounterplay.which can control d4 like his darksquared.i.25.b2 flc7 26.ýÿ 2( 11 3) Rustemov,A-Filippov, Ve5 The Vis now trying to replace theMinsk 1996.i in support of a.d4 advance, but she4.c3l.d4 d5 2.c4 c6 3.e3 f6is not nearly as effective.27.a6 c7e6 5.f3 7 6 [ Pobierz caÅ‚ość w formacie PDF ] |
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