Wednesday, April 12, 2017

Caro-Kann Defence 5.Nc5!?

Bobby Fischer played 5.Nc5 several times in simuls in the 1960s. I've played it several times myself. This game and the notes share some of my experiences. White gets no advantage, except it might be a surprise weapon vs humans. A game vs my friend Jack Clauser is in the notes.

I faced the Caro-Kann Defence from PII233Crafty in 1998. I was rated in the 2400s in blitz on the Internet Chess Club. I drew the high rated PII233Crafty chess engine. Later I also drew duckbreath in the same line.

[My new French 3.Be3 Playbook is a step by step guide to the Alapin Diemer Gambit.]

Sawyer (2412) - PII233Crafty (2726), ICC 5 0 Internet Chess Club, 13.11.1998 begins 1.d4 d5 2.e4 c6 3.Nc3 dxe4 4.Nxe4 Bf5 5.Nc5 b6 [The main alternative was played vs me by Jack Clauser. After 5...e5 6.Nxb7 Qe7 (This was the old move. Nowadays almost everyone plays 6...Qb6=) 7.Na5 exd4+ 8.Be2 Qb4+ 9.Bd2 Qxb2 10.Bd3 (10.Rc1+/=) 10...Bxd3 11.cxd3+/= 1-0 in 22. Sawyer - Clauser, corr 1994] 6.Nb3 In 1998 when I was rated in the 2400s in blitz on the Internet Chess Club, I drew three games vs the high rated PII233Crafty chess engine. Later I also drew duckbreath in the same line. All those long games began 6...Nf6 [Another good line for Black is 6...e6 7.Nf3 Nd7 (7...Bd6=) 8.Be3 Qc7 9.Bd3 Bxd3 10.Qxd3 Ngf6 11.0-0 c5 12.dxc5 Nxc5 13.Nxc5 Bxc5 14.Bxc5 Qxc5 15.Rad1 0-0= The game position was equal, but I was outplayed. I blundered on move 33. Then I dragged the game out until mate. I am not proud of the way I handled it. 1-0 in 69. Pekelder - Sawyer, corr APCT 1978] 7.Nf3 e6 8.Bd3 Bb4+ 9.c3 Bxd3 [I drew three other games that continued 9...Bd6 10.Bxf5 exf5 11.0-0 0-0 12.Bg5 h6 13.Bxf6 Qxf6 14.Re1+/= White has a better pawn structure, but Black has kingside attack chances. Game drawn by repetition 1/2-1/2 in 91. Sawyer - PII233Crafty, Internet Chess Club 1998] 10.Qxd3 Bd6 11.0-0 [11.Bg5 Nbd7 12.Nbd2 Qc7 13.0-0 0-0 14.Rad1=] 11...0-0 12.Re1 Nbd7 13.Bg5 Qc7 14.Bh4 Rae8 15.Bg3 [15.Nbd2 e5 16.Bxf6 Nxf6 17.dxe5 Bxe5 18.Nc4=] 15...Bxg3 16.hxg3 e5 17.dxe5 Nxe5 18.Nxe5 Rxe5 19.Rxe5 Qxe5 20.Rd1 Re8 21.Nd4 Qd5 22.c4 Qd6 23.Nf3 Qxd3 24.Rxd3 Kf8 25.Kf1 c5 26.b3 g6 27.Nd2 Re6 28.f3 Ke7 29.Kf2 h5 30.Re3 Nd7 31.Rxe6+ Kxe6 32.Ke3 Nb8 33.Ne4 Nc6 34.Nc3 Ke5 35.Nd5 Nd4 36.Ne7 Nf5+ 37.Nxf5 Kxf5 38.Kf2!? a6  [This is a wasted tempo when you may be trying to achieve zugzwang. 38...Ke5 39.Ke3 g5-/+] 39.a3  [This costs a tempo. White should try 39.Ke3 g5 40.Kd3 Ke5 41.Ke3=] 39...Ke6 40.Ke3 Ke5 41.Kd3 f6 [41...g5-/+] 42.Ke3 Kf5 43.Kf2 Ke6 44.Ke3 Ke5 45.Kd3 a5 46.Ke3 Kf5 47.Ke2 Ke5 48.Ke3 Kf5 49.Ke2 Ke5 50.Ke3 Game drawn by repetition 1/2-1/2


You may also like: King Pawn (1.e4 e5) and Queen Pawn (1.d4 d5)
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