Author: John Merlino
Date: 12:12:51 01/05/02
Go up one level in this thread
On January 05, 2002 at 10:01:24, Dieter Buerssner wrote: >On January 05, 2002 at 06:52:23, Uri Blass wrote: > >>I give an analysis of yace that is probably going to see >>the mate score at depth 16 >> >>How much time do programs need to find the mate? >> >> >>New position >>2R5/8/8/8/1B6/6K1/p1p1p1p1/6kb b - - 0 1 >> >>Analysis by Yace 0.99.56: >> >>1...e1Q+ 2.Bxe1 a1Q >> -+ (-7.61) Depth: 1 00:00:04 >>1...a1Q >> -+ (-9.08) Depth: 1 00:00:04 > >I think, Yace is not so good at mates, where the position already looks won, >because it limits its extension here (or better, doesn't do most extensions at >all). Also, I think it is not important for practical playing strength, because >with a score of +9.x chess programs will usually win (studies might be an >exception). > >Another example, where no large advantage can be found at shallow depth: > >[D] 6r1/2rp1kpp/2qQp3/p3Pp1P/1pP2P2/1P2KP2/P5R1/6R1 w - - > >Regards, >Dieter One second for CM8000: Time Depth Score Positions Moves 0:00 2/5 0.77 24231 1. Qd4 a4 2. Kf2 Qc5 3. Qxc5 Rxc5 0:01 2/6 Mate15 121807 1. Rxg7+ Rxg7 2. Rxg7+ Kxg7 3. Qe7+ Kg8 4. Qe8+ Kg7 5. h6+ Kxh6 6. Qf8+ Kh5 7. Qf7+ Kh4 8. Qxh7+ Kg3 9. Qg7+ Kh4 10. Qg5+ Kh3 11. Kf2 Qb6+ 12. Kf1 Qg1+ 13. Qxg1 Rc8 14. Qg2+ Kh4 15. Qh2# 0:01 3/7 Mate15 218363 1. Rxg7+ Rxg7 2. Rxg7+ Kxg7 3. Qe7+ Kg8 4. Qe8+ Kg7 5. h6+ Kxh6 6. Qf8+ Kh5 7. Qf7+ Kh4 8. Qxh7+ Kg3 9. Qg7+ Kh4 10. Qg5+ Kh3 11. Kf2 Qb6+ 12. Kf1 Qg1+ 13. Qxg1 Rc8 14. Qg2+ Kh4 15. Qh2# 0:04 3/8 Mate15 532298 1. Rxg7+ Rxg7 2. Rxg7+ Kxg7 3. Qe7+ Kg8 4. Qe8+ Kg7 5. h6+ Kxh6 6. Qf8+ Kh5 7. Qf7+ Kh4 8. Qxh7+ Kg3 9. Qg7+ Kh4 10. Qg5+ Kh3 11. Kf2 Qb6+ 12. Kf1 Qg1+ 13. Qxg1 Rc8 14. Qg2+ Kh4 15. Qh2# jm
This page took 0 seconds to execute
Last modified: Thu, 15 Apr 21 08:11:13 -0700
Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.