Sunday, August 3, 2008

A Big Diemer Win

Here's an example of Diemer's, er, shall we say exuberant, style of annotation, which I faithfully translated from his German article. It's one of his classic victories. Diemer,EJ - Gereben,Erno Zwolle, 1959 On the third day after Beverwijk, in the third round of the international tournament in Zwolle I met IM Gereben. (I had easily won the first two games, an Alapin Gambit Declined again de Vries, a BDG against Schijf.) For the first time I overran an international master with the BDG, aided to be sure (or naturally!?) by the furious time pressure on my opponent. 1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3 exf3 5.Nxf3 Bg4 The most natural answer, but as this more or less forced loss shows, probably already the mistake. 6.h3 Bxf3 7.Qxf3 c6 8.Be3 e6 9.Bd3 Nbd7 10.0-0 Be7 The critical position. The attempt to aim for 0-0-0 with Nbd7 and Qc7 is almost always unsuccessful, since White can proceed even more rapidly with his mating attack. 11.Rf2 0-0 12.Raf1 Qa5 13.g4! The classical position of the BDG, where already all White pieces bear on the Black King, while Black plays practically two rooks down. 13...h6 After ... 75 minutes! 14.h4 c5 Now my opponent had only 15 minutes for the remaining 26 moves. 15.g5 And here I had used only 20 minutes! 15...hxg5 16.hxg5 cxd4 17.Qh3?! [17.Bxd4 Qxg5+ 18.Kh1 Qh4+ 19.Rh2 Qxd4 20.Qh3 Nh5 21.Bh7+!-tvp] 17...dxe3 18.Rg2 Naturally I also considered 18. Rh2!? and 18. gxf6 and above all 18. Rxf6!?, but the text move appeared to be the safest and--most poisonous! 18...Rfc8!! Could have meant his salvation, or more, if after... 19.gxf6 ...instead of... 19...Nxf6? 19...Bxf6!! had been played. That is, considered objectively, probably a winning position for Black. In any case I'm still unable to find any forced attacking continuation for White, since the Black King will probably be able to reach safety at c7. But I would probably have still won, for this position is so full of snares that no one would have been able to survive the remaining 22 moves in the few seconds left. 20.Qh6 Although he used the rest of his time before he played 19. ...Nxf6, my opponent had simply overlooked this. 20...g6 21.Bxg6 Black resigned, as mate is unavoidable. 1-0