Author: Amir Ban
Date: 03:15:09 09/09/98
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On September 08, 1998 at 21:23:43, Francois Bertin wrote: > > 6r1/p2Pbk2/P4p2/1B3P2/2K1p1p1/8/8/3R4 b - - > > This position happened in a correspondence game I played recently. >I played Rg5, letting White promote to queen, and then sacrificed my bishop >on it, after which White took with rook. I was hoping that my two passed >pawns on the kingside would give me good chances. That was quite >speculative, to say the least and I had to concede victory to my >opponent about 15 moves later. > How was the game lost ? > However, when I put this position in Rebel 9, I was surprised to see >that the program liked the move and even gave a small advantage to Black!? > > I run Rebel on a P-90 with only 8 Mg of memory, so I would like to >know if it would stick to the sacrifice and its evaluation when running >on a more powerful system with much more memory for hash tables. And what >would other programs like Fritz, Hiarc and al. play? > Rg5 looks like a good move, giving black the advantage. It should be good enough to draw, at least. I have: 1... Rg5 2.d8=Q Bxd8 3.Rxd8 g3 and black looks dangerous because white doesn't have time to capture on a7. Black can easily opt for a draw by taking the f5 & a6 pawns. Maybe (1... Rg5) 2.Bc6 is safer for white, but after 2... Rxf5 is doesn't look good either. 1...g3 doesn't win for black because of 2.Kd4, getting the king nearer with tempo because of the threat Bc4+. It looks good enough to draw, though. Amir
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