Author: Uri Blass
Date: 13:52:43 02/28/02
Go up one level in this thread
On February 28, 2002 at 16:36:41, Dann Corbit wrote: >On February 28, 2002 at 15:00:03, Les Fernandez wrote: > >>[D]8/4b1k1/R5pp/2p1pp2/1pQq4/1P1P3P/1P3PPK/8 w - - >> >> >>I am interested to know if the above position can be held by black. White is >>short on time but can force perpetual by Qe6. Although a rook is better then a >>bishop, most of the time, should white exchange queens here? I am only an >>average player but after doing a little analysis on this position Crafty reports >>the following on a fairly slow machine. (Pentium 350, 256 mb ram) >> >>8/4b1k1/R5pp/2p1pp2/1pQq4/1P1P3P/1P3PPK/8 w - - acd 15; acn 170618898; acs 900; >>ce 155; pv Kg1 Qxc4 bxc4 h5 g3 Kf7 Kg2 Bf6 Rc6 Be7 Kf3 g5; >> >>Although white is reported to have a 1.55 advantage after Kg1 I wonder if the >>position can be held by black. I also took a look at the position with white >>taking the queen and the ce still appeared about the same with black capturing >>white queen with cxd4. >> >>8/4b1k1/R5pp/2p1pp2/1p1Q4/1P1P3P/1P3PPK/8 b - - acd 17; acn 186582676; acs 902; >>ce -151; pv cxd4 Kg3 Kf7 Kf3 h5 Rc6 Bf6 Rb6 Be7 g3 Bf8 h4 Be7; >> >>Question is with queens off the board can the white rook start chopping up the >>black pawns while the black bishop exists? Can someone run this on better >>hardware and tkae it a bit deeper to see what falls out? > >Beowulf does not swap queens as black (which I think is a mistake). Now, when >you are behind, the last thing you want to do is trade equal pieces and >especially queens. I agree that when you are behind you do not want to trade queens. But in this case, I think it saves a draw. Darting away >will probably end in a loss. why do you think that trading queens can save the draw? I know from experience that the stronger side usually win with advantage of a rook against bishop and it is espacially true in the endgame It is possible to compose a close position when the rook can do nothing but the position in the board is not a close position so I have no reason to assume that the rook cannot win against the bishop. Uri
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