Author: Dann Corbit
Date: 15:12:56 02/28/02
Go up one level in this thread
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? ChessMaster says trade the queens right now (which seems to be conventional wisdom). Time Depth Score Positions Moves 0:00 2/6 2.62 36117 1. Qxd4 cxd4 2. Ra7 Kf6 3. f3 Ke6 4. Kg3 0:00 3/7 2.62 111666 1. Qxd4 cxd4 2. Kg3 Kf7 3. Kf3 Bg5 4. Ra7+ Ke6 5. Rc7 0:01 3/8 2.70 299716 1. Qxd4 cxd4 2. Kg3 Kf7 3. Kf3 Bg5 4. Rb6 Bd2 5. Rb7+ Ke6 0:05 4/9 2.68 921101 1. Qxd4 cxd4 2. Kg3 Kf7 3. Kf3 h5 4. Ra7 Ke6 5. Rb7 0:26 5/10 2.73 4482781 1. Qxd4 cxd4 2. Kg3 Kf7 3. Kf3 h5 4. Ra7 Ke6 5. g3 Bg5 6. h4 1:32 6/11 2.67 16186407 1. Qxd4 cxd4 2. Kg3 Kf7 3. Kf3 h5 4. Rc6 g5 5. Rc7 g4+ 6. Kg3 Ke6 9:20 7/12 2.72 97134615 1. Qxd4 cxd4 2. Kg3 Kf7 3. Kf3 h5 4. g3 h4 5. Ra7 hxg3 6. fxg3 Ke6 7. Rc7
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