Author: Steven J. Brann
Date: 19:15:16 10/21/01
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On October 21, 2001 at 17:57:10, Terry McCracken wrote: >On October 21, 2001 at 17:53:03, Andrew Smith wrote: > >>I hope this diagram works... >> >>[D]r1bk3r/1pp2pp1/p2p1n1p/5q2/8/4BN2/PPPQ1PPP/3RR1K1 w - - >> >>How long does it take your program to find the strong move Bb6! ? By comparison, Chessmaster 8000's time isn't that impressive at 3:42. A PIII 933, custom personality with SS=12 and 256MB hash yields the following: Time Depth Score Positions Moves 0:01 1/6 0.60 121716 1. Qc3 Qb5 2. Bf4 Bg4 3. Nd4 Qd7 0:09 1/7 0.67 496585 1. Qc3 Be6 2. Nd4 Qg6 3. Nxe6+ fxe6 4. Qb3 Ke7 5. Bf4 0:20 1/7 0.75 997161 1. Qb4 Qb5 2. Rxd6+ Bd7 3. Rd4 c5 4. Qxb5 axb5 5. Rd6 Re8 6. Bxh6 Rxe1+ 7. Nxe1 gxh6 8. Rxf6 Rxa2 9. Rxf7 Rxb2 0:24 1/8 0.58 1441971 1. Qb4 Qb5 2. Rxd6+ Bd7 3. Rd4 Re8 4. Qc3 Nd5 5. Qa3 Nxe3 6. Rxe3 Rxe3 7. fxe3 0:49 1/9 0.75 4213243 1. Qb4 Qb5 2. Rxd6+ Bd7 3. Rd4 Qxb4 4. Rxb4 Kc8 5. Bd4 a5 6. Rb3 Re8 7. Rxe8+ Nxe8 1:47 1/10 0.78 11284273 1. Qb4 Qb5 2. Rxd6+ Bd7 3. Rd4 Re8 4. Qa3 c5 5. Rd6 Ne4 6. Rd5 Qc6 3:42 1/10 1.46 26713588 1. Bb6 Nd5 2. Ba5 b6 3. c4 Bb7 4. cxd5 bxa5 5. Qxa5 Rc8 6. Qc3 Re8 4:23 1/11 1.46 32514565 1. Bb6 Nd5 2. Ba5 b6 3. c4 bxa5 4. cxd5 Re8 5. Rxe8+ Kxe8 6. Qc3 Bb7 7. Qxc7 Bxd5 8. Qxd6 Bxf3 9. gxf3 Qxf3 6:32 1/12 1.47 51492661 1. Bb6 Nd5 2. Ba5 b6 3. c4 bxa5 4. cxd5 Re8 5. Rxe8+ Kxe8 6. Qc3 Bb7 7. Qxc7 Bxd5 8. Re1+ Kf8 9. Qxd6+ Kg8 The default personality SS=6 with 64MB hash took 4:35 to see Bb6. Steve
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