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.f8 ýÿf8 34.a7, 1-0.(132) Lputian,S-Petrosian,AOrr,M-Upton, 1993; Another try fromErevan 1995the diagram is 16.ýÿe7?! 17.abll.d4 f6 2.c4 e6 3.f3 d5 4.c3 ýÿd6, but repositioning the ýÿ to d6Ae7 5.Ag5 h6 6.Ah4 o-o 7.e3 allows White to gain a tempo whenb6 s.Ae2 Ah7 9.Af6 Af6 tO.cd5 creating the isolani.18.e4! de4 19.ýÿc4ed5 ll.b4 c6 12.0-0 eS 13.b3f8 20.e4 and White has the bettera5 14.ba5 l:la5 15.1lfel d7 16.a4 chances according to Chekhov's analyStarting here, let's see how the isolanisis of Mitenkov,A-Akhmadeev Russiadevelops and what effects it has onour1994.Finally, 16.g6!? 17.abl (17.e4?!model.reveals subtle differences compared tothis maneuver in the game cited above.(see next diagram)The placement of Black's and darksquared ýÿ are better in the present16.Aa6 Or 16.a8!? 17.abl ýÿa6position.And very important to our18.ýÿa6 a6 19.h3 e6 20.e4 de4opening model is the presence of the21.e4 e4 22.e4 ýÿe7 with equal white-squared ýÿ- 17.c5! 18.d5 cd4chances to both sides.Black's last move 19.ýÿb5 c5 20.f6 Wf6 2l.b4 l:te4is fo rced to prevent 23.d6, wi th MIOategame uaregy1 0022.lle4 ýÿe4 23.d4 l:ta8 24.3 d8 noticed.22.f!Vc4 22.f6 f6 23.l:!e6fe6 24.c4 c5 25.dc5 c5 26.h3 with25.e2 g5 and Black had a slightedge partly due to the activity of his White holding a slight edge.22.l0f8in Karpov,A-Short,N Monaco 1993.) 23.f6 Jlf6 23.24J:te6 tt'Je6.17.g7 18.fl ýÿa6 19.ýÿa6 a6 25.c6 wins.24.e8 trfd6 25.1i'b3125.c5!? 26.h41 e6 27.1i'b120.ecl ýÿf8 21.el il.d6 22.d3 wh7?1f6 23.h3 was Epishin,V-Lutz,C Dort g6 28.tJb6 d4 29.e5 c2mund 1994, which is a model position 30.a71 it)el?l 31.f7 d7.with the e4 break prevented.17.Aa6 32.g5 hg5 33.tle7, 1-017.acl e2 18.e2 c5! is similiar toKarpov-Short quoted above, but with Continuing our investigation, we willout the white-squared il.s on the board.dig deeper into a position from theAfter 19.d5 cd4 20.f6 f6 21.ttJd4 previous game and expand the possic5 22.ýÿdl ea8 the game was equal bilities of our model.in Lutz,C-Lobron,E Munich 1993.17.a6 18.e4!? 18.ad l!? lla5(1 33) Mitenkov,A-Akhmadeev, V19.e2 (19.e4 de4 20.e4 e6 OurMoscow 1994model features the common deploye71.d4 d5 2.c4 e6 3.c3.4.f3ment of Black's to e6.Such observaf6 5.fJ.h6 6 ".fJ.g5 h4 0-0 7.e3tions allow us to expand our model andb6 S.b7 9.fJ.e2.f6 Jif6 10.cd5continue the investigation.We see nowed5 ll.b4 c6 12.0-0 eS 13.b3that models can be developed whicha5 14.ba5.J:Ia5 15.a4 d7 16.fe1will direct our plans in specific posiJJ.17.1:1abl.d6 18.e4 de4e7tions.21.e3 d5 We have already19.JJ.f8 20.e4c4seen one game in which this move wasan error.It is clear that we should becareful in our judgments when considering model positions or specific moves.Under slightly different conditions, forexample, the move.d5 is wellplayed.22.f6 f6 23.l:1e6 e624.el e5! 25.e6 e6 was equal inGurevich,M-Van Der Sterren,P Wijkaan Zee 1993) 19.e6 20.c2 a8with balanced chances.Epishin,VGoldin,A Novosibirsk 1993.18.de419.e4e61? Here is the "novelty" inIn our analysis of the Lputian-Petrosianthis game, arriving at a piece placementgame above, we reached this positionalready observed in our model.Ifand judged it to be in White's favor.19.a8 20.adl c7 21.c4 WhiteNow let's gather more evidence.held a slight edge in Brenninkmeijer,J.JJ.Hedke,F Groningen 1994.20.a2! 20 c7 2l.l A logical move,20.l:te3?! bS!.20.1:la5 21.J::[ placing the behind the isolani.ae2.J:Id5A common placement we have already 21.lle2 (Planning to double l:.s on the J he Isolated d- awn I UJe-file) 21.a6 (2l.b8 is aimless, g6 40.ii,c6 Wg7 4I.c>filg3 d4 42.Wf2e.g.22.bel a8 23.lZlc3 ýÿd6 h5 43.g4 hg4 44.hg4 ii.c245.We224.e8! and again our model illustrates b1 46.Wd2 c7 47.Wd1 d3the weakness off7) 22.a6 a6 with a 48.f3 After 48.d4 c6 49.d3typical model position, offering equal l:tc4 White has a slight advantage.chances to both sides.Another path is 48.Jtc2 49.Wd2 d3 50.f5 50.ýÿd5!?21.lZlc3 f6 22.d5, setting up a natural 50.gf5 51.gf5 b1 52.Ac6 a7continuation of our model - the push of 53.d5 ac7 54.f6 wg6 55.we3the isolani.21.f6 22.e5d5 55.e4!? 55.wf5 56.e6 fe6 56.f6?22.ýÿe5?! 23.de5 d5 24.l2Jd6 leaves 57.e g7 58.g6 g6 59.f8 winWhite holding the edge.23.c3 :es ning.57.J;le6 d2 58.wd2 af7?!24.d5 cd5 Our model has become58.d7!? is the simplest way to drawthe battleground for a balanced pawn the game, e.g.59.c3 (59.el d5structure (discussed later in this book) , 60.e3 d3 61.e2 f6 equal)with the addition of weak Queenside 59.d5 60.e6 61.f8 ýÿf5 ispawns.25.Jtb5 ýÿe6 26.d3 e5 drawn.59.b6 Not best.Instead,27.e5 f!e5 28.de5 ýÿaS 29.d4 59.el f6 (59.d7 60.f7 d5c8 30.h3 :c5 31.wh2 Vc7 32.f4 61.cl d8 62.e8 wins} 60.g8Ac6 33.Ad3 Va7 34.l.:ta1 Va5 d6 61.e3 threatens 62.h7 with35.J:[b1 After a long series of posi- the better pawnless ending.59.f6tiona! moves both masters overlook 60.ld,b1.J:[d6, 1/2-1/2tactics which should have determinedthe outcome of this game.Karpov makes the execution look easyby concentrating on the strengths of hismodel structure to win the followinggame.(134) Karpov,A-Bonsch, UBaden-Baden 19921.d4 f6 2.c4 e6 3.f3 d5 4.c3Ae7 5.Ag5 h6 6.Ah4 o-o 7.e3b6 s.Ae2 b7 9.Af6 Af6 10.cd5ed5 11.0-0 e8 12.b4 c6 13.h3d6 14.a,fe1 d7 15.Afl Ae716.f!ab1 a5 17.ba5.J:[a5 18.a4Aa6 19.Aa6 a6 20.e4 de435.Va4?? 35.d7 36.b4a721
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