(5) Cole - Purcell,B [B50]
Berkeley Chess Club Berkeley, CA, 19.03.2004
1.e4 c5 2.Nf3 d6 3.Bc4 e6
[ 3...Nc6 4.d4 cxd4 5.Nxd4 Nf6 6.Nc3 Qb6 7.Nxc6 bxc6 8.0-0 g6 9.Qe2 Bg7 10.e5 dxe5 11.Qxe5 0-0 12.Qxe7 Bf5 13.Bb3 Rae8 14.Qa3 Ng4 15.Bf4 Bd4 16.Bg3 Bc5 17.Qa4 Rd8 18.Qf4 Rd4 19.Qf3 Bd6 20.Bxd6 Rxd6 21.h3 Nf6 22.g4 Bc8 23.Rad1 Qd8 24.Rxd6 Qxd6 25.Rd1 Qe5 26.Qe3 Qxe3 27.fxe3 Re8 28.Rf1 Kg7 29.g5 Nh5 30.Rxf7+ Kh8 31.h4 1-0 Varaljai,I-Lendvai,N/Hungary tt 1995/[NiC YB\41-32 (nc)] (31)]
4.0-0 Nc6 5.d3 Nf6 6.Nc3 Be7 Diagram
7.Ne2
[ 7.a3 a6
( 7...0-0 8.Ba2 d5 9.Bf4 d4 10.Ne2 Nh5 11.Bd2 e5 12.Bd5 Qd6 13.h3 Be6 14.Bxc6 bxc6 15.g4 Nf6 16.Ng5 Nd7 17.b3 a5 18.a4 Bxg5 19.Bxg5 f6
20.Bd2 Rfb8 21.f4 Rb7 22.Qe1 Qc7 23.Qh4 Rab8 24.Rf2 c4 25.bxc4 Nc5 26.g5 fxg5 27.Qxg5 Bxh3 28.Qxe5 Qxe5 29.fxe5 Ne6 30.Bxa5 Bg4
31.Ng3 Nc5 32.Rf4 h5 33.Nf5 Ra8 34.Bd2 Rxa4 35.Rxa4 Nxa4 36.Nxd4 c5 37.Nf5 Rb2 38.e6 Kf8 39.Rf2
1-0 Ostergaard,A-Grego,L/IECG email 1998/E-Mail 2000 (39))
8.Ne1 b5 9.Ba2 Bb7 10.f4 Qb6 11.Be3 g6 12.f5 gxf5 13.exf5 Nd4 14.fxe6 Nxe6 15.Qe2 0-0-0 16.Bf2 d5 17.Bh4 c4+ 18.Kh1 Ng8 19.Bxe7 Nxe7
20.Rxf7 Rde8 21.dxc4 dxc4 22.Rf6 Ng6 23.Qh5 Qe3 24.Nd5 Nef4 25.Qg4+ Kb8 26.Nxe3 Rxe3 27.Rxf4 Rhe8 28.Rf1 R8e4 29.Qd7 Re7 30.Qd6+ Ka7 31.Rd1 Re8 32.Bb1 Re2 33.c3 Ne5 34.Qc5+ Ka8 35.h3 Rxb2 36.Rf8 Rxf8 37.Qxf8+ 1-0 De Aquino,E-De Oliveira,N/Fortaleza 1963/EXT 2001 (37);
7.d4 cxd4 8.Nxd4 0-0 9.Nf3 a6 10.a3 b6 11.Bd3 Bb7 12.Ne2 Qc7 13.Nf4 Ne5 14.Re1 Rfd8 15.Bd2 Nxf3+ 16.Qxf3 d5 17.e5 Ne4 18.Bc3 Bc5
19.Bxe4 dxe4 20.Qg3 Kh8 21.Nh5 Rg8 22.Qf4 Rad8 23.Red1 Bd5 24.Qg3 Qb7 25.Bd2 Be7 26.Nf4 Qc7 27.Rac1 Bb7 28.b4 Rd7 29.Nh3 Rgd8
30.Ng5 Bxg5 31.Qxg5 Rd5 32.c3 h6 33.Qe3 Qd7 34.Rc2 Rd3 35.Qe2 Qd5 36.Rb2 Qxe5 37.Qe1 Qd5 38.h3 e3 ZÜ.
0-1 Surjanto,E-Tonteri,A/Bruegge 1978/EXT 2004 (38);
7.Re1 Qc7
( 7...0-0 8.e5 dxe5 9.Nxe5 Nd4 10.Be3 a6 11.a3 b5 12.Ba2 Qc7 13.Nf3 Rd8 14.Bxd4 cxd4 15.Ne2 Bc5 16.Rc1 Bb7 17.Ng3 Rac8 18.Qe2 b4
19.axb4 Bxb4 20.Red1 Bd6 21.Bc4 Bf4 22.Ra1 a5 23.Re1 Qb6 24.b3 Ba6 25.Ne4 Nd5 26.g3 Bh6 27.Neg5 Bxc4 28.dxc4 Nc3 29.Qd3 g6 30.Ne4 Bg7 31.Nxc3 dxc3 32.Qe3 Qb4 33.Ra4 Qc5 34.Qxc5 Rxc5 35.Rea1 g5 36.Rxa5 Rxa5 37.Rxa5 g4 38.Nh4 Rd2 39.Kf1 Rxc2 40.Ke1 Bd4 41.c5 Bxf2+
42.Kf1 Rd2 0-1 Poeppel,W-Osthoff,M/Bayern 2003/EXT 2004 (42))
8.a3 0-0 9.Bd2 d5 10.exd5 exd5 11.Bxd5 Bg4 12.Bxc6 bxc6 13.h3 Bh5 14.Ne2 Bxf3 15.gxf3 Qd7 16.Nf4 Bd6 17.Kg2 h5 18.h4 Qf5 19.Qc1 Kh8
20.b4 cxb4 21.axb4 g5 22.hxg5 Qxg5+ 23.Kf1 Qh4 24.Re6 fxe6 25.Ng6+ Kh7 26.Nxh4 Nd5 27.Qe1 Rf6 28.c4 Ne7 29.Bg5 Rf7
30.Qxe6 1-0 Lafortune,G-Forget,C/St Quentin 2002/CBM 88 ext (30);
7.Be3 a6 8.a4 0-0 9.d4 Ng4 10.h3 Nxe3 11.fxe3 Bd7 12.Qd2 Qc7 13.Rad1 Rad8 14.Qe2 Na7 15.Bb3 b5 16.axb5 axb5 17.d5 e5 18.Qd2 Nc8 19.Qe2 b4 20.Na2 Nb6 21.c3 c4 22.Bc2 b3 23.Bxb3 cxb3 24.Nb4 Qc4 25.Qd3 Qxd3 26.Rxd3 Bb5 0-1 McKinnon,K-Pottinger,C/Winnipeg 2003/EXT 2004 (26);
7.Bf4 0-0 8.d4 cxd4 9.Nxd4 Nxd4 10.Qxd4 e5 11.Qe3 exf4 12.Qxf4 a6 13.Rad1 Nh5 14.Qc1 Bg5 15.Qa1 Nf4 16.g3 Qd7 17.gxf4 Qg4+ 18.Kh1 Qf3+ 19.Kg1 Bh3 20.fxg5 Qg2# 0-1 Rodgers,D-Jordaan,W/IECG 2002/Telechess CBM 95 (20)]
7...0-0
[ What square was weakened by white's last move? 7...d5 8.exd5 exd5 9.Bb5]
8.Bg5 Rb8
[ Fritz and crafty still score 8...d5 a third to a half a pawn superior to the alternatives.]
9.a3 b5 10.Ba2 Ba6 11.Re1 Qc7 12.Ng3 b4 13.a4 Na5 might be a slight inaccuracy, allowing.. 14.e5 Nd5 15.Bxd5 exd5 Diagram 16.exd6?
[ >=16.Bxe7 Qxe7 17.Nf5 Qd7 18.N3h4
( 18.Nxd6 Nc6 19.d4 Diagram 19...c4 ( 19...cxd4 is not as good. 20.Nxd4 Rbd8 Diagram ( 20...Nxe5? doesn't quite work. 21.N4f5 f6 22.f4 Ng6 23.Qxd5+ Kh8 24.Ne7 Qxe7 ( 24...Nxe7? 25.Nf7+) 25.Rxe7 Nxe7 26.Qe6 Ng6 27.Nf7+ Rxf7 ( 27...Kg8?? 28.Nh6+ Kh8 29.Qg8+ Rxg8 30.Nf7#) )
21.f4 and white is a pawn plus from the layman's point of view with two more pawns for that rook in horse's clothing on d6.)
20.Nh4
( 20.c3 bxc3 21.bxc3 f6 22.Qd2 Rb3
( 22...fxe5 23.dxe5 Nxe5?? 24.Qxd5+ Nf7 25.Rad1 Rbd8 26.Qa5 ( 26.Nf5!? Qxd5 27.Ne7+) 26...Nxd6 27.Qxa6) )
20...g6 21.Qf3 Nxd4 22.Qxd5 Diagram 22...Ne6
( 22...Nxc2 23.e6 Bb7 24.exd7 Bxd5 25.Re8 Rd8 ( 25...Nxa1? 26.Nc8) 26.Rd1 Diagram 26...Bc6
( 26...Rxd7 27.Rxf8+ Kxf8 28.Rxd5 c3
( 28...Ke7? 29.Nc8+ Kd8 30.Rxd7+ Kxd7 31.Nxa7 c3 32.bxc3 b3 33.Nf3 b2 34.Nd2 Na3 35.Nb5 b1Q+ 36.Nxb1 Nxb1 37.a5+-)
29.bxc3 bxc3 30.Kf1 Nb4 31.Rc5 c2 32.Nxf7 Rd1+ 33.Ke2 c1Q 34.Rxc1 Rxc1)
27.Ne4 ( 27.Rxf8+ Kxf8) 27...Rfxe8 28.Nf6+ Kg7 29.dxe8N+ Rxe8 30.Nxe8+ Bxe8 31.a5)
23.Nf3 b3
( 23...Bb7 24.Qxc4 Bxf3 25.gxf3) 24.c3 Nf4 25.Qe4 Nd3)
18...g6 19.Nxd6 Nc6 20.f4 f6 21.Qf3 Ne7 22.Qg3 fxe5 23.fxe5 Qe6 and white gains a pawn with a good position.]
16...Bxd6 17.Nf5 f6 18.Bh4 Rbe8 19.Nxd6 Qxd6 20.Bg3 Qd7 21.Rxe8?!
[ Giving up the File. I would have perfered 21.Qd2 e.g. 21...Rxe1+ 22.Rxe1 Re8 maintaing tension on the e-file.
It's the only open file on the board. That makes it essential.]
21...Rxe8 22.b3 Qe6 23.Nh4?
[ >=23.Qd2 Qe2 24.Qxe2 Rxe2 25.Rc1 and maybe white can play 26.Kf1 after which the rook must leave. The text removes control of the d2 square.] 23...Qe2 24.Nf5 Qxd1+ 25.Rxd1 Re2 26.Rc1 Bxd3!
Sound, but not on Fritz's list. That's probably a good thing.
27.cxd3 Nxb3 28.Rd1
[ 28.Rb1 Rd2 29.Ne7+ Kf7 30.Nxd5 Rxd3 31.Nf4 interesting position. Fritz finds full compensation for one pawn worth of sacrifice.
The black pieces are active and the b and c pawns should tell.]
28...c4 Diagram 29.dxc4
[ 29.Kf1 Rd2 30.Rxd2 Nxd2+ 31.Ke2 c3 32.Nd4 b3 33.Nb5
( 33.Kd1? b2; 33.Nxb3 Nxb3 34.Kd1 Nd4 35.f3 Nc6)
33...d4 34.Kd1 b2 35.Na3 Kf7 36.Kc2]
29...dxc4 30.Rd8+ Kf7 31.f3 c3 32.Nd4 Nxd4 33.Rxd4 c2 34.Bf4 g5 35.Rc4
the game is hopeless [ 35.Bc1 Re1+ 36.Kf2 Rxc1]
35...gxf4 36.Kf1 Rd2 37.Rc7+ Kg6 38.Ke1 Rd1+ 39.Ke2 c1Q 40.Rxc1 Rxc1 41.Kd2 Rc7 42.a5 b3
the way to do it. the king is cut off.
43.g3 b2
Fritz agrees.. sac the pawn! {:D
44.gxf4 b1Q 45.f5+ Kxf5 46.h4 Diagram 46...Qb3
[ I've had a guy online have a fit about it, but I perfer exploring geometry here. {:) He told me,
"DON'T YOU KNOW HOW TO MATE??"
46...Qc1+ 47.Kd3 Rc2 48.h5 Qd2#;
46...Kf4 47.Ke2 Rc2+ 48.Kd3 Qd1#;
46...Ke5 47.Ke3 Qe1+ 48.Kd3 Rc3#;
46...Qb2+ 47.Ke3 Rc3+ 48.Kd4 Qd2#]
47.a6 Rc2+ Brendan would have made that guy happy with the standard linear mate. 0-1
