Author: Dan Homan
Date: 04:42:16 06/04/02
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On June 04, 2002 at 05:03:42, Andrew Williams wrote: >This is from an ICC game between PostModernist and Crafty. The key here is Nb2! >How long does it take your program to find it? > >[D]1r1r2k1/p5pp/4ppq1/2b5/nP6/4P1P1/P2BQ1BP/R2R3K b - b3 0 1 bm Nb2 > >It took crafty 10 seconds on Bob's quad Xeon 700MHz (with the benefit of full >hashtables of course). It takes sixty seconds for PM to find it on my Athlon >1200. EXchess takes 17 seconds on my PIII 600. It sees that the move is clearly better than the alternatives at depth 9 and starts to see postitive scores at depth 11 (at about a minute). 9. -- 9. -2.67 11 2175811 1. ... Bxb4 2. Bxb4 Rxd1+ 3. Qxd1 Qe8 4. Rb1 Rc8 5. Qb3 Nc5 6. Qc2 Qe7 9. -2.02 14 2864587 1. ... Rxd2 2. Qxd2 Rxb4 3. Qd8+ Bf8 4. Qd7 Qf7 5. Qxf7+ Kxf7 6. Rd7+ Kg8 7. Rxa7 9. ++ 17 3447935 1. ... Nb2 9. 0.03 18 3646411 1. ... Nb2 2. bxc5 Nxd1 3. Rxd1 Qc2 4. c6 Rb2 5. c7 Qxc7 6. a3 e5 9. 0.03 23 4524433 1. ... Nb2 2. bxc5 Nxd1 3. Rxd1 Qc2 4. c6 Rb2 5. c7 Qxc7 6. a3 e5 10. -- 10. -0.27 25 5087516 1. ... Nb2 2. bxc5 Nxd1 3. Rxd1 Qc2 4. Bh3 Qxa2 5. c6 e5 6. c7 Qd5+ 7. Kg1 10. -0.27 42 8844264 1. ... Nb2 2. bxc5 Nxd1 3. Rxd1 Qc2 4. Bh3 Qxa2 5. c6 e5 6. c7 Qd5+ 7. Kg1 11. ++ 47 9790992 1. ... Nb2 11. 0.60 66 14174606 1. ... Nb2 2. Rdb1 Qc2 3. Rc1 Qxd2 4. Qxd2 Rxd2 5. bxc5 Nd3 6. Rc4 Rd8 7. Kg1 11. 0.60 71 15383105 1. ... Nb2 2. Rdb1 Qc2 3. Rc1 Qxd2 4. Qxd2 Rxd2 5. bxc5 Nd3 6. Rc4 Rd8 7. Kg1 12. 0.71 97 20707651 1. ... Nb2 2. Rdb1 Qc2 3. Rc1 Qxd2 4. Qxd2 Rxd2 5. Rxc5 Nd1 6. e4 Rd4 7. Rc7 Nf2+ 8. Kg1 Nxe4 12. 0.71 134 28141439 1. ... Nb2 2. Rdb1 Qc2 3. Rc1 Qxd2 4. Qxd2 Rxd2 5. Rxc5 Nd1 6. e4 Rd4 7. Rc7 Nf2+ 8. Kg1 Nxe4 13. 0.83 256 42241681 1. ... Nb2 2. Rdb1 Qc2 3. Rc1 Qxd2 4. Qxd2 Rxd2 5. Rxc5 Nd1 6. e4 Nf2+ 7. Kg1 Rxb4 8. Rc8+ Kf7 9. a3 Rbb2 13. 0.83 305 52633057 1. ... Nb2 2. Rdb1 Qc2 3. Rc1 Qxd2 4. Qxd2 Rxd2 5. Rxc5 Nd1 6. e4 Nf2+ 7. Kg1 Rxb4 8. Rc8+ Kf7 9. a3 Rbb2 - Dan
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