Author: Thomas McBurney
Date: 04:47:50 06/06/03
Go up one level in this thread
On June 06, 2003 at 05:40:21, Lyn Harper wrote: > [D]k7/5p2/4pP2/4P3/3P4/8/8/4K3 - - w > > Hope the diagram comes out :) > Goood old CM9k does it in pretty short order, without EGDB. About 1min18sec on >my Athlon 2400. But Ruffian, Genius7 and Green Light Chess are stumped ,even >after about 10min. > I don't have Fritz or Shredder. The old Chessica got it in over 5min. > How does your proggy do? That's very interesting. My winboard engine Kanguruh (written in BASIC) found it in less than a second. 1 112 25 1 e1d2 2 111 25 10 e1d2 a8b7 3 112 25 44 e1d2 a8b7 d2e3 4 110 25 140 e1d2 a8b7 d2e3 b7c6 5 111 24 472 e1d2 a8b7 d2e3 b7c6 e3e4 6 111 23 1471 e1d2 a8b7 d2e3 b7c6 e3e4 c6b5 7 110 18 5221 e1d2 a8b7 d2e3 b7c6 e3e4 c6b5 d4d5 7 110 16 7035 e1f2 a8b7 7 110 10 13007 d4d5 e6d5 e5e6 f7e6 f6f7 e6e5 f7f8 a8a7 8 622 8 14867 d4d5 e6d5 e5e6 f7e6 f6f7 a8a7 f7f8 e6e5 9 704 3 26639 d4d5 e6d5 e5e6 f7e6 f6f7 a8b7 f7f8 b7c6 e1d2 10 764 45 66371 d4d5 e6d5 e5e6 f7e6 f6f7 a8b7 f7f8 b7c6 f8e7 d5d4 11 766 149 174174 d4d5 e6d5 e5e6 f7e6 f6f7 a8b7 f7f8 b7c6 f8d8 c6b5 d8e8 b5a5 12 766 563 577212 d4d5 e6d5 e5e6 f7e6 f6f7 a8b7 f7f8 b7c6 f8d8 c6b5 d8e8 b5a5 e8e6 13 807 2132 2161586 d4d5 e6d5 e5e6 f7e6 f6f7 a8b7 f7f8 b7c6 f8e7 c6b5 e1d2 b5a5 e7e6 14 807 5494 5866649 d4d5 e6d5 e5e6 f7e6 f6f7 a8b7 f7f8 b7c6 f8e7 c6b5 e7e6 b5c5 e1d2 c5c4 My other chess program, Deep BASIC which is written in QB45 surprisingly found the correct answer in a second. Not bad for a 16 bit DOS program struggling to get 4000 nps on my Athlon 650. But then changes its mind to Kd2 but still shows the pawn exchanges one move later. After a few more minutes it changes its mind again to d5. Can anybody tell me if Kd2 is still ok if the pawn sacrifices are played next move? MOVE TIME SCORE DEPTH LINE 1. ... 1. 0s 1.11 ( 2) E1D2 A8B7 1. 0s -0.10 ( 3) E1D2 A8B7 D4D5 1. 0s 1.11 ( 3) E1D2 A8B7 D2C3 1. 0s 1.12 ( 3) E1D2 A8B7 D2E3 1. 0s 1.12 ( 4) E1D2 A8B7 D2E3 B7A8 1. 0s 1.10 ( 4) E1D2 A8B7 D2E3 B7C6 1. 0s -0.10 ( 5) E1D2 A8B7 D2E3 B7C6 D4D5 1. 0s 1.10 ( 5) E1D2 A8B7 D2E3 B7C6 E3F4 1. 0s 1.11 ( 5) E1D2 A8B7 D2E3 B7C6 E3E4 1. 0s 1.12 ( 6) E1D2 A8B7 D2E3 B7C6 E3E4 C6B7 1. 0s 1.11 ( 6) E1D2 A8B7 D2E3 B7C6 E3E4 C6D7 1. 1s 7.00 ( 6) D4D5 E6D5 E5E6 F7E6 F6F7 D5D4 1. 1s 6.82 ( 7) D4D5 E6D5 E5E6 F7E6 F6F7 D5D4 F7F8 1. 1s 6.70 ( 7) D4D5 E6D5 E5E6 F7E6 F6F7 E6E5 F7F8 1. 2s 6.70 ( 8) D4D5 E6D5 E5E6 F7E6 F6F7 E6E5 F7F8 A8B7 1. 2s 6.68 ( 8) D4D5 E6D5 E5E6 F7E6 F6F7 E6E5 F7F8 A8A7 1. 5s 7.00 ( 8) E1D2 A8B7 D4D5 E6D5 E5E6 F7E6 F6F7 D5D4 1. 17s 6.82 ( 9) E1D2 A8B7 D4D5 E6D5 E5E6 F7E6 F6F7 D5D4 F7F8 1. 17s 6.70 ( 9) E1D2 A8B7 D4D5 E6D5 E5E6 F7E6 F6F7 E6E5 F7F8 1. 171s 6.69 ( 9) E1D2 A8A7 D4D5 E6D5 E5E6 F7E6 F6F7 E6E5 F7F8 1. 285s 7.00 ( 9) D4D5 E6D5 E5E6 F7E6 F6F7 D5D4 F7F8 A8B7 F8G7 1. 328s 8.06 (10) D4D5 E6D5 E5E6 F7E6 F6F7 D5D4 F7F8 A8B7 F8G7 B7A8 1. 328s 7.88 (10) D4D5 E6D5 E5E6 F7E6 F6F7 E6E5 F7F8 A8B7 F8G7 B7A8 1. 330s 7.86 (10) D4D5 E6D5 E5E6 F7E6 F6F7 A8B7 F7F8 B7C6 F8E7 D5D4 Cheers, Tom
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