Começo da ronda 7 em Bazna
Ronda 7
Alexei Shirov Gata Kamsky Boris Gelfand
Vassily Ivanchuk vs Alexei Shirov
Ivanchuk,Vassily - Shirov,Alexei [D80]
Kings' Tournament Bazna ROM (7), 21.06.2009
It is well-known that Ivanchuk can play virtually everything in the opening. Earlier in this tournament Shirov had problems in the Gruenfeld Defense against Radjabov and today Ivanchuk decided to repeat the variation. 1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Bg5 Ne4 5.Bh4 c5 6.cxd5 Nxc3 7.bxc3 Qxd5 8.e3 Bg7 9.Nf3 Nc6 10.Be2 cxd4 11.cxd4 0-0. Expectedly Shirov deviates from his 3rd round game versus Radjabov. [11...e5 12.dxe5 Qa5+ 13.Qd2 Qxd2+ 14.Kxd2 Nxe5 15.Rab1 0-0 16.Nd4 Nd7 17.Rhc1 Bxd4 18.exd4 Nb6 19.Bf3 led to a large advantage for White in Radjabov,T (2756)-Shirov,A (2745)/Bazna 2009 (round 3).] 12.0-0 b6 13.Rc1 Bb7 14.Qa4 e6 15.Rc3! The Ukrainian comes with a good novelty. Previously White placed the rook on c2, but Ivanchuk keeps square c2 available for the queen. 15...Rfc8 16.Rfc1 a6 17.Ne1 b5 18.Qc2
White's pressure on the c-file is very unpleasant and Shirov comes with an interesting idea. 18...Nxd4!? Changing completely the type of position. After other moves White's play is easier: 18...Na7 19.Bf3 Qd7 20.Bxb7 (20.Rc7 Rxc7 21.Qxc7 Qxc7 22.Rxc7 Bxf3 23.gxf3 is possible as well) 20...Qxb7 21.Rc7 Rxc7 22.Qxc7 Qxc7 23.Rxc7 with advantage; Or 18...Nd8 19.Bf3 Rxc3 20.Qxc3 Qxa2 (20...Qd7 21.Qc7 is advantage for White with equal material) 21.Rc2 Qb1 22.Bxb7 Nxb7 23.Kf1 and the queen comes to c7. 19.exd4 Bxd4 20.Bf3. Ivanchuk's move is stronger than 20.Rxc8+ Rxc8 21.Qd1 Rxc1 22.Qxc1 Qxa2 when Black keeps the important dark-squared bishop alive. 20...Rxc3 21.Qxc3 [21.Bxd5 Rxc2 22.Nxc2 was another attractive possibility. 21...Bxc3 22.Bxd5 Bxd5 23.Rxc3 Bxa2 24.Bf6
24...b4. Worse is 24...Bc4 25.Nf3 a5 26.Ne5. 25.Rc7 b3 26.Nd3 a5 27.Nc5 g5! [27...a4? 28.Nxa4 Rxa4 29.Rc8# mate] 28.Rb7 h6 29.Nxb3 a4 30.Nc5 Bd5
Here Ivanchuk had less than one minute left for 10 moves and he chooses the safest continuation – to exchange rooks. 31.Rd7 [But stronger is 31.Rc7 a3 32.Nd7! a2 33.Ba1 and White is better. 31...a3 32.Rd8+ Rxd8 33.Bxd8 Kg7 34.Ba5 Kg6 35.Bc3 f6 36.f3 h5 37.Kf2 e5 38.g3 Kf5 39.Nd7 Bc6 40.Nc5 g4
The time control is over and the position should be a draw. 41.fxg4+ Kxg4 42.h4. The only way to keep some life in the position. Otherwise Black plays h4 himself. 42...a2 43.Bb2 Bd5 44.Nd7 Kf5 45.Ke3 Bc6 46.Nb6 Kg4 47.Kf2 Kf5 48.Nc4 Ke4! Weaker is 48...Kg4 49.Ne3+ Kh3 50.Nd1! Bd5 51.Nc3 Bb3 52.Ne4. 49.Ne3 Bd7 50.Nd1 Be6 51.Nc3+
51...Kd3. After this the position is still a draw, but why give White some chances? An easy draw was 51...Kf5. 52.Ba1 Bc4. This is already a dangerous decision. Again a simple draw is 52...Bf7, or even 52...Bg8 (to control a square in front of White's h-pawn). 53.g4! Ivanchuk immediately uses his chance. 53...hxg4 54.h5 e4 55.h6 e3+ 56.Ke1 Bg8 57.Nxa2 f5 58.Be5 Ke4 59.Bc7 f4 60.Nc3+ Kf5 [60...Kd3 is also possible: 61.Nd5 f3 62.Bg3 Bh7 63.Nf6 Bf5 64.Nxg4 Kd4] 61.Nd5
After more than 6 hours of play Shirov makes the decisive mistake. 61...Bh7?? 61...g3 leads to an immediate draw: 62.Nxf4 (62.Bxf4 Ke4; 62.Kf1 g2+) 62...Kg5 and Black wins the h-pawn. It is curious that Ivanchuk also didn't see this possibility for Black (as he admitted after the game). 62.Ke2! Missed by Shirov. Now White is winning. 68...g3 69.Kf3 e2 70.Kxe2 g2 71.Kf2 f3 72.Bb6 Ke6 73.Nc3 Kf7 74.Be3 Kg6 75.Nd5 Kf7 76.Kxf3 Bb1 77.Nc3 Bc2 78.Kxg2 Kg6 79.Kg3 Kh5 80.Nd5 Kg6 81.Kh4 Bb1 82.Bg5 Bc2 83.Nf6 Bf5 84.h7 [After 84.h7 Kg7 85.Bh6+ Kh8 86.Bf8 Bxh7 87.Kg5.
After 84.h7 Kg7 85.Bh6+ Kh8 86.Bf8 Bxh7 87.Kg5
Analysis diagram
White plays inevitably Kh6 and Bg7 mate! Therefore Shirov resigned. A very difficult game for both opponents and a painful loss for Shirov, who made a mistake after a very long defense. 1-0. [Click para rever]
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