Efstratios Grivas - Dennis Ruijgrok

This is the analysis of the game Efstratios Grivas - Dennis Ruijgrok by chess.gr. The game was played during the Corus Wijk Aan Zee competition.

1.c4 f5 2.Nc3 Nf6 3.g3 g6 4.Bg2 Bg7 5.e4!? fxe4 [5...d6 6.Nge2 Nc6 7.d4 e5 8.0-0+/= Haroun,S-Sorsa,M/Szeged 1994.] 6.Nxe4 Nxe4 [a) 6...0-0 7.Ne2 d6 8.0-0 Nc6 9.Nxf6+ Rxf6 10.d4+/= Koberl,F-Gasztonyi,E/Budapest 1957.; b) 6...Nc6 7.Nxf6+ Bxf6 8.Ne2 d6 9.0-0+/= Uhlmann,W-Zysk,R/Germany 1991.; c) 6...e5 7.Ne2 Nc6 8.0-0 0-0 9.d3+/= Podkriznik,G-Djurkovic,M/Finkenstein 1994.] 7.Bxe4 7...c6! [a) 7...c5 8.h4! Bezold,M-Setzer,G/Berlin 1989.; b) 7...e5?! 8.h4 Qf6 (8...d6 9.h5 Qf6 10.Qf3 Ke7 11.hxg6 hxg6 12.Rxh8 Bxh8 13.Bxb7+/- Pribyl,J-Flaisigova,P/Schwaebisch Gmuend 1998.) 9.d3 Rf8 10.Be3 Nc6 11.Nf3 d6 12.Ng5 Rh8 13.h5 Bf5 14.h6 Bf8 15.Bxc6+ bxc6 16.Qf3 Kd7 17.g4 e4 18.dxe4 Qxb2 19.0-0 Be6 20.Rfd1 Qe5 21.Bf4 Qc5 22.e5 Be7 23.Ne4 Qxc4 24.Rac1 Qxa2 25.exd6 cxd6 26.Bxd6 Bd5 27.Bxe7 1-0 Grivas,E-Szkudlarek,F/Dortmund 1991.; c) 7...Nc6 8.h4 e5 9.h5 Qf6 10.Nh3 d6 11.d3+/= Orso,M-Hoang Thanh Trang/Budapest 1998.; d) 7...d6 8.Ne2 Nd7 9.d4 Nf6 10.Bg2 0-0 11.0-0+/= Fernandez Manrique,A-Santos Izquierdo,C/Tenerife 2005.] 8.Ne2 d5 9.cxd5 cxd5 10.Bg2 Nc6 11.0-0 0-0 12.d3 [12.d4?! Bg4 x d4.] 12...e5!? [12...Bg4 13.h3 Bxe2 14.Qxe2 Nd4 15.Qd1 Rc8 16.Bd2~~ .; 12...Rb8 13.Rb1 e5 14.b4~~ .] 13.Qb3 Be6 14.Qxb7 Qd6 15.Qa6! Qd7! [15...Rab8?! 16.d4! Rb6 (16...exd4 17.Bf4 ) 17.dxe5 Bxe5 18.Qd3 Bxb2 19.Bxb2 Rxb2 20.Nf4+/- .] 16.Bd2 Rab8 17.Rac1 Rb6! [17...Rxb2?! 18.Rxc6 Rxd2 19.Rxe6 Rxe2 20.Rd6 Qc7 21.Bxd5++/- .] 18.Qa3 [18.Qa4? Nd4! 19.Nc3 (19.Qd1 Bg4 ) 19...Ne2+ 20.Kh1 Nxc1 21.Qxd7 Bxd7 22.Bxd5+ Be6 23.Bxe6+ Rxe6 24.Bxc1 Rd6 25.Be3=/+ .] 18...Bg4!? [18...e4!? 19.b3 (19.b4 Bg4 ) 19...exd3 (19...Bg4 20.Nc3 ) 20.Nf4 Nd4 21.Kh1 Nc2 (21...Ne2 22.Nxe6 Qxe6 23.Rc7+/- ) 22.Qa5 (22.Qa4 Qxa4 23.bxa4 Bf5 24.Bxd5+ Kh8 25.Rb1~~ .) 22...Rb5 23.Qa6 Bf5 24.a4 Rb6 25.Qa5~~ .] 19.f3 [19.Nc3 Nd4! 20.Bxd5+ Kh8 21.Be3 Bf3© .] 19...Bf5 20.g4! [20.b4?! Rfb8 .] 20...Be6 21.b3 Qb7! 22.Rc2 22...e4?! [22...Nb4!? 23.Bxb4 Rxb4 24.Qc1 (24.Qa5 Rb5 ) 24...a5 25.Rc7 Qb6+ 26.Kh1~~ .] 23.dxe4 Nd4? [23...dxe4 24.Qc1! Qa6 25.Bh6 Bxh6 26.Qxh6 Ne5 27.Qe3+/= .] 24.Nxd4 Bxd4+ 25.Kh1 dxe4 26.Bh6! Bg7?! [26...Rf7 27.f4! (27.Qa4 Bg7 28.Bxg7 exf3! 29.Rxf3 Rxf3 30.Rf2 Bd5 31.Bxf3 Bxf3+ 32.Kg1 Kxg7 33.Qd4+ Kg8 34.Qf4 Rb4 35.Qxf3 Qxf3 36.Rxf3 Rxg4+= ) 27...Bxg4 28.Qa4 Rd7 29.Qc4+ Be6 30.Qc8+ Qxc8 31.Rxc8+ Kf7 32.Bxe4+/- .] 27.Bxg7 Qxg7 [27...Kxg7 28.Qc1 Kg8 29.Rc7+/- .] 28.h3! Bd5 [28...exf3 29.Rxf3 Rxf3 30.Bxf3+/- .] 29.Qc5 Bb7?! [29...Qd7 30.Rd2 Rb5 31.Qe3 exf3 32.Rxf3 Rxf3 33.Qxf3 Bxf3 34.Rxd7 Bxg2+ 35.Kxg2+/- .] 30.Qc4+! Kh8 31.fxe4 Rxf1+ 32.Qxf1 Qe7 33.Qf4 [33.Rc7! Qe8 34.Qa1+ .] 33...Rf6 34.Qc7 Qb4 35.Qc3 1-0