Ivanchuk - Grischuk, 2009 FIDE Grand Prix, Round 11

Below are the Round 11 game between Vasilly Ivanchuk vs Alexander Grischuk in the 2009 FIDE Grand Prix at Nalchik.



Ivanchuk (2746) - Grischuk (2748) [A40]
2009 FIDE Grand Prix, Nalchik (11), 27.04.2009

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 0–0 6.Be2 e5 7.0–0 Nc6 8.d5 Ne7 9.b4 The Bayonet Variation of the King's Indian Defense 9...Nh5 10.c5 Nf4 11.Bxf4 exf4 12.Rc1 h6 13.Nd4 a6 14.h3 Kh8 15.Qd2 Ng8 16.Rfd1 h5 17.Qxf4 Bh6 18.Qg3 h4 19.Qd3 Bxc1 20.Rxc1 Qg5 21.Re1 Bd7 22.c6 bxc6 23.dxc6 Be6 24.Bg4 Bxg4 25.hxg4 Ne7 26.Qd1 Rab8 27.a3 Kg7 28.Re3 Qf6 29.Nf3 Nxc6 30.Nd5 Qe6 31.Nxc7 according to Fritz , black should protect the d6 pawn with 31...Qd7 but Grischuk decided to not defend passively and play 31...Qxg4?
32.Qxd6 and now black is in trouble because his knight on c6 is en prise 32...Rbd8 32...Nd8 33.Ne5 threatening to play Nd7 forking black rooks 33.Qxc6 33.Qxc6 Rd1+ 34.Ne1 h3 35.Qc3+ f6 36.Rxh3 Rc8 37.e5 1-0