Wednesday, August 14, 2013

Geoffrey Coleman Vienna Hara-Kiri 5.g4

Playing the final round usually means that you know where you stand where it comes to winning any prizes. A few people who have won most of their games are in contention. The rest are not. In correspondence chess, the rounds have multiple games. In postal chess, rounds took years to play. By the time I got to the 1989 Golden Squires Postal Finals, I knew that my opponents and I: (1) had already complete a dozen games; (2) would play for years without quitting; (3) had knocked off a much of our competition; and (4) we were probably out of the running for the few prizes at the top.

My first game with Geoffrey Coleman was in the section USCF 89SF7. Here we contested a sharp Blackmar-Diemer Gambit Vienna Hara-Kiri 5.g4 Bg6 6.h4 variation, instead of Tartakower's 6.g5 Nd5 7.Nxe4. Probably we were worn out, and being rated close to each other, agreed to a last round draw after the middlegame. My second game with Coleman was played at the same time and is scheduled to be posted on my blog in 10 days.

Christoph Scheerer wrote of this line in his excellent book: "More ambitious but also more risky is the Hara-Kiri Gambit with 5.g4. Sometimes White may even be a pawn up for a change, but in the long run Black will have the superior structure. On the other hand, the position is at least unbalanced, which may allow White to outplay his opponent."

Sawyer (2003) - Coleman (1978), corr USCF 89SF7, 15.09.1992 begins 1.d4 Nf6 2.Nc3 d5 3.e4 dxe4 4.f3 Bf5 5.g4 Bg6 6.h4 exf3 [The critical line is 6...h6! 7.Bg2 Scheerer (7.Nh3 Lane 7...Nc6-/+) 7...Nc6 8.Be3 e5!-/+] 7.Qxf3 Nc6 8.Bb5 Qd6 9.d5?! [9.Bf4 Qe6+ 10.Nge2=] 9...a6 10.dxc6? [10.Bxc6+ bxc6 11.h5 Qe5+ 12.Nge2 Be4 13.Nxe4 Qxe4 14.Qxe4 Nxe4 15.dxc6=] 10...axb5 11.cxb7 Rb8 12.Bf4 Qe6+ [12...e5! 13.h5 Bxc2 14.Rh2 exf4 15.Rxc2=] 13.Nge2 Be4 14.Nxe4 Qxe4 15.Qxe4 Nxe4 16.Bxc7 [16.a4=] 16...Rxb7 17.Ba5 h5 18.g5 e5 19.Nc3 [19.0-0-0 Be7 20.Rhe1 0-0=] 19...Ra7 [19...Nxc3! 20.Bxc3 b4 21.Bd2 Bc5=/+] 20.Bb6 Ra6 21.Nxe4 Rxb6 22.0-0-0 f5 23.Nc3 b4 24.Nd5 Rb7 25.Rhe1 e4 26.Nf4 Kf7?! [26...Rg8=] 27.Rd5?! [Houdini 3 would keep playing with 27.g6+! Kf6 28.Rd8+/-] 1/2-1/2


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