National Open Las Vegas

(1) Gurevich,Dmitry (2582) - Slupik,Christopher (2126) [E61] National Open (1), 10.06.2005 1.d4 d6 2.Nf3 g6 3.c4 Nf6 4.Nc3 Bf5 5.Nh4 Bd7 6.e4 e5 7.Nf3 exd4 8.Nxd4 Bg7 9.Be2 0-0 10.Be3 Re8 11.0-0 Nc6 12.f3 Nh5 13.Qd2 Nf4 14.Rad1 Nxe2+ 15.Ndxe2 Ne5 16.b3 a6 17.h3 Bc6 18.Qc1 Qc8 19.Bh6 Bh8 20.Ng3 b5 21.Nd5 bxc4 22.bxc4 Rb8 23.Kh2 Rb2 24.Rd2 Rxd2 25.Bxd2 Qb7 26.Qc2 Rb8 27.f4 Bxd5 28.cxd5 Nd7 29.Bc3 Bxc3 30.Qxc3 Nc5 31.f5 Qb2 32.Qf3 g5 33.f6 Qe5 34.Qe3 h6 35.Rf5 Qb2 36.e5 Nd7 37.Rxg5+!! Diagram # 37...hxg5 38.Qxg5+ Kf8 39.Qg7+ Ke8 40.Qh8+ Nf8 41.e6! fxe6 42.Qg7 Kd8 43.Qxf8+ Kd7 44.Qe7+ Kc8 45.f7 Kb7 46.dxe6 Qg7 47.Qe8 Qf8 48.Qxf8 1-0

(2) Ivanov,Igor (2549) - Tanner,Robert (2100) [A30] National Open (1), 10.06.2005 1.c4 c5 2.Nf3 Nc6 3.g3 b6 4.Bg2 Bb7 5.0-0 e6 6.Nc3 Nf6 7.e4 d6 8.d4 e5 9.dxe5 dxe5 10.Qa4 Bd6 11.Nd5 h6 12.Nh4 0-0 13.Nf5 Nd4 14.Nxd4 cxd4 15.Bd2 Nxd5 16.cxd5 Qe8 17.Qxe8 Rfxe8 18.Rac1 Rac8 19.Bh3 Rxc1 20.Rxc1 Re7 21.Bc8 Kh7 22.a4 Bxc8 23.Rxc8 Rc7 24.Rxc7 Bxc7 25.Bb4 f6 26.Be7 1-0

(3) De Firmian,Nick (2619) - Schill,William (2289) [B57] National Open (2), 10.06.2005 [Lacrimosa,Leopold] 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bc4 Qb6 7.Ndb5 a6 8.Be3 Qa5 9.Nd4 e6 10.0-0 Be7 11.Bb3 Qh5 12.f3 Na5 13.Qd2 Nxb3 14.axb3 Bd7 15.g4 Qg6 16.Kh1 h6 17.Rg1 Rc8 18.Nde2 Bc6 19.Rg2 Nd7 20.Nd4 Bf6 21.Rd1 Be7 22.Nce2 Qh7 23.c4 g5 24.Ng3 Nf6 25.Nxc6 Rxc6 26.Bd4 0-0 27.Qb4 b5 28.cxb5 axb5 29.Qxb5 Rfc8 30.Rgd2 Qg6 31.Qe2 e5? Diagram # 32.Bc3 h5 33.Nf5 Bf8 34.h3 [34.Rxd6! Bxd6 35.Rxd6 Rxd6 36.Ne7+ ] 34...Ne8 35.b4 Nc7 36.b5 Rxc3 37.bxc3 Ne6 38.Qe3 hxg4 39.hxg4 Nf4 40.b6 1-0

(4) Finegold,Benjamin (2613) - Rensch,Daniel (2418) [E39] National Open (3), 11.06.2005 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 c5 5.dxc5 0-0 6.a3 Bxc5 7.Nf3 b6 8.Bf4 Bb7 9.e3 Nh5 10.Bg3 Bxf3 11.gxf3 f5 12.f4 Nc6 13.Rd1 a6 14.Bg2 Rc8 15.0-0 Nxg3 16.hxg3 Qc7 17.Rc1 Nb8 18.Na4 Qa7 19.Qd3 Rc7 20.Rc2 Rfc8 21.e4 g6 22.Nxc5 bxc5 23.Rd1 Qb6 24.Rcd2 Rf8 25.Qc3 Nc6 26.exf5 Nd4 27.fxg6 hxg6 28.b4 d6 29.Rxd4!? cxd4 30.Rxd4 Kf7 31.Qd3 Ke7 32.Re4 Rf6 33.Bh3 Kf7 34.Bxe6+! Diagram # 34...Kg7 [34...Rxe6 35.Qd5 Rce7 36.f5 gxf5 37.Qxf5+ Rf6 38.Qh7+ ] 35.Qc3 Re7 36.g4 g5 37.c5 1-0

(5) Sharavdorj,Dashzeveg (2526) - Pader,Douglas (2240) [E91] National Open (3) 1.d4 d6 2.Nf3 g6 3.c4 Bg7 4.e4 Nf6 5.Nc3 0-0 6.Be2 Bg4 7.Be3 Nfd7 8.d5 c5 9.0-0 Bxf3 10.Bxf3 Na6 11.Be2 Nc7 12.Qd2 Re8 13.Kh1 a6 14.a4 Qb8 15.f4 e6 16.e5 exd5 17.cxd5 dxe5 18.f5 Ra7 19.d6 Na8 20.fxg6 hxg6 21.Rxf7! Diagram # 21...b5 [21...Kxf7 22.Bc4+ ] 22.Raf1 Nab6 23.a5 Nc8 24.Qd5 1-0

(6) Gimsburg,Mark (2389) - Ibragimov,Ildar (2683) [A25] National Open (4), 11.06.2005 1.c4 e5 2.Nc3 Nc6 3.g3 f5 4.Bg2 Nf6 5.e3 d5 6.Nxd5 Nxd5 7.cxd5 Nb4 8.d3 Nxd5 9.Nf3 Bd6 10.0-0 Nf6 11.b4 Qe7 12.Bb2 0-0 13.b5 Kh8 14.a4 e4 15.dxe4 fxe4 16.Nd2 Bf5 17.Qc2 Rae8 18.Nc4 Qe6 19.Nxd6 cxd6 20.Bd4 Ng4 21.Rad1 Rf7 22.h3 Nh6 23.Kh2 Bg4 24.Rd2 Bf3 25.Bxa7 Rf5 26.Bxf3 exf3 27.g4?? Diagram # 27...Qe5+ 28.Kg1 Nxg4!! [28...Nxg4 29.hxg4 Rh5!! 30.gxh5 Qg5+ 31.Kh2 Qg2# ] 0-1