Chavez,Malone - Alvez,Ronald

2008 Camp 7 Chess Tournament, 11.May.2008
D02: 1 d4 d5 2 Nf3 sidelines, including 2...Nf6 3 g3 and 2...Nf6 3 Bf4
1.d4 d5 2.Nf3 Nf6 3.Bf4 c6 4.e3 g6 5.Bd3 [5.Be2 Bg7 (5...Qb6 6.Qc1 Bg4 7.0–0 Nbd7 8.h3 Bxf3 9.Bxf3 Bg7 10.Nd2 0–0 11.c3 Rfe8 12.Qc2 e5 13.Bh2 Rac8 14.Rfd1 c5 15.dxe5 Nxe5 16.Be2 d4 17.Bxe5 dxe3 18.Nc4 exf2+ 19.Kf1 Qe6 20.Bxf6 Olah,J (2025)-Zilahi,G (2072)/Budapest 2007) 6.0–0 0–0 7.c4 a6 8.Nbd2 Bf5 9.Rc1 Nbd7 10.h3 Qb6 11.Qb3 Qxb3 12.Nxb3 dxc4 13.Bxc4 Rac8 14.Rfd1 b5 15.Be2 Nd5 16.Bg3 N5b6 17.Na5 c5 18.dxc5 Nxc5 19.Be5 Be4 Annaberdiev,M (2457)-Laylo,D (2448)] 5...Bg7

6.0–0 Novelty [6.Bxb8 Rxb8 7.Nbd2 0–0 8.0–0 Nd7 9.e4 dxe4 10.Nxe4 e5 11.dxe5 Nxe5 12.Nxe5 Bxe5 13.c3 Qh4 14.Ng3 Bxg3 15.hxg3 Qf6 16.Qf3 Qxf3 17.gxf3 Be6 18.a3 Rbd8 19.Bc2 Rd2 20.Rac1 Rfd8 Megalovic-Romano,F; 6.Nbd2 Nbd7 7.Qe2 (7.0–0 0–0 8.h3 Re8 9.Bh2 c5 10.c3 b6 11.Bb5 Bb7 12.Ba4 a6 13.dxc5 b5 14.Bc2 Nxc5 15.Ne5 Nfd7 16.Ndf3 f6 17.Nxd7 Qxd7 18.h4 Qg4 19.Qd4 Qxd4 20.cxd4 Nd7 21.Rac1 Nb6 Qaddara,A (2243)-Ibrahim,I (2133)1–0 ) 7...Qb6 8.Rb1 Nh5 9.Bg3 0–0 10.c3 Re8 11.0–0 Nxg3 12.hxg3 e5 13.dxe5 Nxe5 14.Nxe5 Rxe5 15.Nf3 Bg4 16.Qd1 Rae8 17.Be2 Bxf3 18.Bxf3 a6 19.Re1 Qc7 20.Qc2 f5 Tomio,D-Masella,V/Trieste 2004/½–½ ] 6...0–0 7.Nbd2 Nh5 8.Bg5 Re8 9.c4 Qb6 Black threatens to win material: Qb6xb2 [9...Be6 10.Rc1²] 10.Rb1 [10.Qa4 Bd7+=] 10...e6 Prevents intrusion on f5 [10...h6 11.Bh4+=] 11.a3 [11.c5 Qc7+=] 11...Nd7+= 12.b4 White prepares the advance c5 12...e5 [12...h6 13.Bh4²] 13.dxe5 [13.b5!?+=] 13...Nxe5= 14.Nxe5 Bxe5 [14...Rxe5 15.Bh4=] 15.Nf3 Bg7 16.c5 White gains space 16...Qc7 17.Bh4 Nf6 18.Bg3 White threatens to win material: Bg3xc7 18...Qd8

19.b5 Ne4 20.Qc2 Qa5 21.bxc6 bxc6 22.Bxe4 [22.Nd4!? Nxg3 23.hxg3 (‹23.fxg3 Bh6 24.Nxc6 Bxe3+ 25.Kh1 Qxc5-+) 23...Bxd4 24.exd4 Qxa3 25.Ra1³] 22...Rxe4ยต 23.Rb3 [23.Bd6 Qxa3 24.Rb3 Qa4-+] 23...Rc4 Black threatens to win material: Rc4xc2 [23...Bf5!? 24.Qc1 Rc4-+] 24.Qb1=+ Qxc5 25.Rb8 Rxb8 26.Qxb8 White pins: Qb8xc8 26...Qf8 27.Bd6 White threatens to win material: Bd6xf8 27...Qe8 28.Qxa7 h6 Covers g5 29.Qc7 Qd7 30.Qb8 Qb7 [30...Qe6 31.h3=] 31.Qxb7= Bxb7 32.Ne5 Bxe5 33.Bxe5 Opposite coloured bishops appeared 33...Ba6 34.Rb1 White has a mate threat 34...Bb5 35.g3 g5 36.Rb4 Rc1+ 37.Kg2 f5 38.a4 White threatens to win material: a4xb5 38...Bd3 39.Rb2 [39.f3 Kf7=] 39...g4 [¹39...Bf1+!? 40.Kf3 Rc4-+] 40.f3 Consolidates e4 40...Kh7 41.Rd2 [41.Rd2 Bf1+ 42.Kf2=] 1–0