Author: Ricardo Gibert
Date: 05:23:20 06/07/03
Go up one level in this thread
On June 06, 2003 at 07:47:50, Thomas McBurney wrote: >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? I as far as I can tell, Whites first 2 moves can be completely random and still win easily! > >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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