Alexei Shirov em Bazna
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Ronda 6
Liviu-Dieter Nisipeanu Teimour Radjabov Gata Kamsky
Jogo comentado pelo GM Dorian Rogozenco...
Ivanchuk,Vassily - Nisipeanu,Liviu Dieter [B80]
Kings' Tournament Bazna ROM (6), 20.06.2009
1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Be3 Be7 7.f4. The Scheveningen Variation. In round 5 against Kamsky Ivanchuk played this system with the Black pieces. 7...0-0 8.Qf3 e5 9.Nf5 Bxf5 10.exf5 Nbd7 11.Bc4 [The main alternative is 11.0-0-0 ] 11...Rc8. A new move. 11...exf4 has been played several times in practice with good results for Black. Undoubtedly both players must have analyzed it and come to their own opinion about the existing theory. 12.Bb3
12...d5. Nisipeanu sacrifices a pawn. The position is extremely sharp. With the king in the center White must react very precisely. 13.Nxd5 [13.Bxd5 is answered by the fantastic 13...Ba3 14.bxa3 Rxc3 and White loses] 13...Nxd5 [13...e4 is not in the spirit of the previous sacrifice, since Black must try to open up the position.] 14.Qxd5 [14.Bxd5 Rxc2 is okay for Black] 14...exf4 15.Bxf4 Bb4+ 16.c3 Qe7+ [If Black starts with 16...Rc5 then 17.Qd3 Qe7+ and now 18.Kf2! since square c5 is no longer available for a check.] 17.Kf1! [After 17.Kf2 Bc5+ 18.Kf3 Nf6 19.Qe5 Qd7 20.Rad1 Qb5 Black has a powerful initiative.] 17...Rc5 [17...Nf6 allows White to exchange queens with 18.Qe5]
18.Re1! After a long thought Ivanchuk made this strong move and it slowly became clear that White has the advantage. Nisipeanu consumed a lot of time, but could find nothing for Black. In this position Nisipeanu calculated only the natural 18.Qd3 By the way, this is also the strongest move according to computer. However, now Black sacrifices the bishop 18...Qf6! and White's position looks extremely dangerous: 19.cxb4
a) 19.Qxd7 Rxf5 20.g3 and here Black if wishes can secure a draw at once: 20...Rxf4+ 21.gxf4 Qxf4+ 22.Kg2 (or 22.Ke2 Qe4+ 23.Kd2 Be7! 24.Rhe1 Bg5+ 25.Kd1 Qf3+ 26.Kc2 Qf2+ 27.Kd1=) 22...Qe4+ 23.Kg3 Qe3+=;
b) The best is 19.g4 but this is hardly a move you'd like to play in a game.; 19...Rxf5 20.g3 Ne5 21.Qe4 Ng6 22.Bc2 Re5 23.Qf3 Nxf4 24.gxf4 Rfe8 and with a piece down Black is actually better!
18...Qh4 [After 18...Rxd5 19.Rxe7 Rxf5 20.cxb4 Rxf4+ the most precise for White is 21.Ke1! Nf6 22.Rxb7 with a pawn up in endgame] 19.Qe4 Ba5 20.Bd6 Qxe4 21.Rxe4 Rxf5+ 22.Ke2
Thanks to the bishop pair White has the advantage, but there is still a long game ahead. Black's next move is a blunder. 22...Nc5? [22...Nf6 23.Re7 Bd8 24.Rxb7 Re8+ 25.Kd3 Ne4 was the only way to put up resistance.] 23.Re3 Rc8 24.g4 [After 24.g4 Rg5 25.h4 Rxg4 26.Bxc5 Black remains without a piece due to the weakness of his backrank. Therefore Nisipeanu resigned.] 1-0.
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