Shakmaty Bereolos - The Official Chess Site of Peter Bereolos

White: Peter Bereolos
Black: GM Dmitry Gurevich
51st Indiana State Championship, 1992
Round 5 Board 3

1.d4 Nf6 2.c4 e6 3.Nf3 c5 4.Nc3 cxd4 5.Nxd4 a6 6.g3 Qc7

7.e4 The main move here is the pawn sacrifice 7.Bg2 After the text, White is already down to 41% in the database. 7...Bb4 8.Qd3 This is the main move that has been played here, but now White's results have sunk to 30% in 24 games. The engines give 8.Bd2 as equal, I only found one example from practice 8...0-0 (8...Bxc3 9.Bxc3 Nxe4 10.Qg4 Nxc3 11.Qxg7 Rf8 12.bxc3 should be better for White despite his doubled c-pawns) 9.Qe2 d5 10.e5 Bxc3 11.Bxc3 Ne4 12.Bb4 Rd8 13.f3 Qb6 14.Nc2 Nc6 15.Ba3 Nc5 16.0-0-0 d4 17.Qf2 Nxe5 18.Rxd4 Bd7 19.Qe3 Qc7 20.Be2 b6 21.Rhd1 Nc6 22.R4d2 Nb7 23.f4 Be8 24.Rxd8 Rxd8 25.Rxd8 Ncxd8 26.f5 Nc5 27.fxe6 Ndxe6 28.Nd4 Bd7 29.b3 Qd6 30.Bb2 Nxd4 31.Qxd4 Qh6+ 32.Qd2 Qe6 33.Qg5 f6 34.Qd5 Qxd5 35.cxd5 a5 36.Kd2 Kf7 37.Ke3 Ke7 38.Kd4 Kd6 39.Ba3 Be8 40.b4 axb4 41.Bxb4 Ba4 42.Bc4 g6 43.Bd3 f5 44.h4 Bd1 45.Bb5 h6 46.a4 Kc7 47.Bxc5 bxc5+ 48.Kxc5 g5 49.hxg5 hxg5 50.a5 f4 51.gxf4 gxf4 52.a6 1-0 Ernst-Berkvens Hoogeveen 2000 8...Bxc3+ 9.bxc3 9.Qxc3!? 9...d6 10.Ba3 Nbd7 11.Nb3 Nc5 12.Nxc5 12.Bxc5 is worth consideration, the two bishops are not going to be worth much in this position. 12...dxc5 13.Bg2 e5 14.0-0 0-0 15.f4 Rd8 16.Qe3 b6 17.Rad1 Be6 18.Rd5!? trying to open the position for the bishops

18...Re8 19.fxe5 Ng4 20.Qf4 Bxd5 21.cxd5 Nxe5 22.c4 Qd7 23.Bb2 Nd3 23...Nxc4? 24.Bxg7 24.Qd2 Nxb2 25.Qxb2 Qd6 26.Rf5 f6 27.Rf4 Rab8 28.Bh3 b5 29.Be6+ Rxe6 30.dxe6 bxc4 31.Qa3 Qxe6 32.Qxc5 Rc8 33.Qf2 c3 34.Qc2 Qe5 35.Rf5 Qd4+ 36.Kg2 Qd2+ 36...Rb8 would have ended the game much quicker 37.Rf2 Qxc2 38.Rxc2 Kf7 39.Kf3 Ke6 40.Ke3 Ke5 41.Kd3 g5 42.Ke3 h5

43.h3?! this gives Black a clear route to the g3 square. 43.Kd3 is more tenacious. 43...Rc7 (43...h4 44.gxh4 gxh4 45.Ke3) 44.Ke3 Rc4 45.Kd3 Rxe4 46.Rxc3 and perhaps White has some drawing chances 43...h4 44.g4 Rc7 45.Rc1 45. Kd3 Kf4 46. Rf2+ Kg3 illustrates the problem with White's 43rd move 45...c2 46.Kd2 Kd4 47.a4 a5 48.Rxc2 Rxc2+ 49.Kxc2 Kxe4 50.Kc3 f5 0-1