Author: Richard A. Fowell (fowell@netcom.com)
Date: 13:05:55 03/04/00
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On March 04, 2000 at 12:56:41, Djordje Vidanovic wrote: >Take a look at this position. Arose from a game a friend played against Chess >Genius 5.0 on his AMD K6/200 (only 4MB hash): > >[D]k7/1b6/8/8/2Q5/8/6p1/6K1 w - - > > >Genius was set at 5 seconds per move and could not find the win (marching his >King towards the enemy....). Please try your programs at faster time controls >and let me know how they do. > >How exasperatingly dumb programs can be at times! BTW, I had to time to test >only Shredder 3 and it found the winning sequence easily. > > >*** Djordje On my 180 MHz PowerMac at 5 seconds/move: HIARCS 7.0 - failed (draw by 50 move rule) Sigma Chess 4.02 - failed (draw by 50 move rule) The King 2.0 - mated in 67 moves MacChess 5.01 - mated in 21 moves Screamer 1.0 - mated in 13 moves. It is ironic that my the freeware programs did better than the three commercial programs. Shows the dangers of inferring program strength from a limited set of problems, I suppose. To learn more about any of these programs (or to download the last two) see: http://dmoz.org/Games/Board_Games/Chess/Software/Macintosh/ Here's Screamer's result: Screamer: Listing for the game and final position Starting Position: k7/1b6/8/8/2Q5/8/6p1/6K1 w - - Move White Black ------------------------------------------------------ 001 (c4c5) Qc5 (a8b8) Kb8 002 (g1f2) Kf2 (b8a8) Ka8 003 (f2g3) Kg3 (a8b8) Kb8 004 (g3f4) Kf4 (b7c6) Bc6 005 (c5b6) Qb6+ (c6b7) Bb7 006 (f4e5) Ke5 (g2g1) g1=N 007 (b6g1) Qxg1 (b8c7) Kc7 008 (g1c5) Qc5+ (c7d7) Kd7 009 (c5d6) Qd6+ (d7c8) Kc8 010 (d6b6) Qb6 (c8b8) Kb8 011 (e5d6) Kd6 (b8a8) Ka8 012 (d6c7) Kc7 (b7d5) Bd5 013 (b6b8) Qb8++ 8 k Q . . . . . . 7 . . K . . . . . 6 . . . . . . . . 5 . . . b . . . . 4 . . . . . . . . 3 . . . . . . . . 2 . . . . . . . . 1 . . . . . . . . a b c d e f g h
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