Author: John Merlino
Date: 11:03:51 08/13/01
Go up one level in this thread
On August 13, 2001 at 03:26:28, Harald Faber wrote: >Following position: > >[D]1rb4r/2p3k1/3b4/4pp2/P1P1P1p1/1N1N2Pq/1PQ3R1/4R1K1 b - - 0 1 > >The last white move was Nc5-b3 and Shredder 5.32 felt fine with +0.2 at a search >depth of 10-11 and awaits f5-f4. But Shredder changes its mind very fast after >the next black obvious move. Is Shredder blind? Or are the other programs blind >too? Would a different move than Nc5-b3 have saved the white position? The default Chessmaster personality, on a PIII-600, takes just under a minute to find Rxb3: Time Depth Score Positions Moves 0:00 1/3 -0.16 5748 1...Be6 2. Nbc5 Qh1+ 3. Kf2 0:00 1/4 -0.21 24134 1...f4 2. Nf2 Qh5 3. Kf1 Be6 0:01 2/5 -0.12 44467 1...f4 2. Nf2 Qh5 3. c5 fxg3 4. cxd6 gxf2+ 5. Kxf2 cxd6 0:01 2/5 -0.26 101987 1...Bb7 2. Nf2 Qh6 3. c5 Be7 4. Kf1 0:02 2/6 -0.31 168266 1...Bb7 2. Nf2 Qh6 3. Qd2 Qxd2 4. Nxd2 Bc5 0:03 2/6 -0.35 239650 1...f4 2. Nf2 Qh5 3. c5 Be7 4. Kf1 Ba6+ 5. Nd3 0:07 3/7 -0.41 504094 1...f4 2. Nf2 Qh5 3. gxf4 exf4 4. c5 Be5 5. Nd3 g3 0:29 3/8 -0.46 2090449 1...f4 2. Nf2 Qh5 3. gxf4 exf4 4. c5 Be5 5. Qd1 Rb4 6. Nxg4 Bxb2 7. Rxb2 Bxg4 0:57 3/8 -1.18 4158392 1...Rxb3 2. Qxb3 fxe4 3. Nf2 Bc5 4. Kf1 Rf8 5. Re2 e3 6. Qc3 exf2 7. Qxe5+ Kg8 1:34 4/9 -1.61 7301870 1...Rxb3 2. Qxb3 fxe4 3. Nf2 Bc5 4. Kf1 Rf8 5. Re2 e3 6. Qb8 exf2 7. Qxc7+ Kg8 Taking back White's move (Nb5c3), CM8000 doesn't seem to be able to find anything better than Qc3: Time Depth Score Positions Moves 0:00 1/3 0.30 4405 1. a5 Ra8 2. b4 0:00 1/4 0.40 15898 1. a5 f4 2. gxf4 exf4 3. Qc3+ Kf7 4. e5 0:01 2/5 0.26 45936 1. a5 Qh1+ 2. Kf2 Qh5 3. Qe2 fxe4 4. Qxe4 Bf5 0:01 2/5 0.31 62838 1. Qd2 f4 2. b4 f3 3. Qg5+ Kf7 0:02 2/6 -1.00 142044 1. Qd2 f4 2. b4 f3 3. Rh2 Bxc5+ 4. bxc5 Qxg3+ 5. Kh1 Rxh2+ 6. Qxh2 Qxh2+ 7. Kxh2 0:06 2/6 0.52 354652 1. Qc3 f4 2. gxf4 Bxc5+ 3. Nxc5 Qxc3 4. bxc3 exf4 5. Rd2 0:10 3/7 0.32 672380 1. Qc3 f4 2. gxf4 Bxc5+ 3. Nxc5 Qxc3 4. bxc3 exf4 5. a5 Kf6 0:25 3/8 0.00 1794530 1. Qc3 f4 2. gxf4 Kf8 3. Kf2 Qf3+ 4. Kg1 Qh3 1:34 4/9 -0.04 6885580 1. Qc3 f4 2. gxf4 g3 3. Nf2 Bxc5 4. Rxg3+ Kf7 5. Rxh3 Bxh3 6. fxe5 Rbg8+ 7. Kh2 Bf5+ 8. Nh3 Rxh3+ 9. Qxh3 Bxh3 10. Kxh3 4:16 4/10 -0.51 19936295 1. Qc3 f4 2. gxf4 g3 3. Nf2 Bxc5 4. Rxg3+ Kf7 5. Rxh3 Bxh3 6. Qxe5 Rbg8+ 7. Qg5 Rxg5+ 8. fxg5 Be6 9. b3 jm
This page took 0 seconds to execute
Last modified: Thu, 15 Apr 21 08:11:13 -0700
Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.