Author: Dieter Buerssner
Date: 13:40:58 04/12/03
Go up one level in this thread
On April 12, 2003 at 14:49:05, Jorge Pichard wrote:
>This one is fairly easy for most programs
>
>New game
>8/1p2k2p/8/P4K2/8/7P/8/8 w - - 0 1
Yace, P4 2.53 GHz. First with TBs and bitbases. Kg5 from the beginning. After 5
seconds, mate in 30:
[ nodes time score depth]
3915716 4.422 Mat30 23. 1. Kg5 Kf7 2. Kh6 Kg8 3. h4 Kh8 4. Kh5 Kg8 5.
Kg4 Kf8 6. Kf4 Ke8 7. Kg5 Kf7 8. Kf5 Ke7 9. Ke5
Kd7 10. Kf6 Kc6 11. Kg7 Kb5 12. Kxh7 {EGTB}
12...Kxa5! 13. h5 b5! 14. h6 b4! 15. Kg7!! b3
16. h7!! Ka4 17. h8=Q!! Ka3! 18. Qa8+! Kb2! 19.
Qa4 Kc3! 20. Qe4 b2 21. Qb1 Kc4 22. Qxb2 Kd3!
23. Qb3+ Kd4 24. Kf6! Ke4 25. Qc3 Kd5! 26. Qb4!
Kc6 27. Ke6! Kc7 28. Qb5! Kc8! 29. Kd6! Kd8 30.
Qb8# {1001}
Without TBs. Also Kg5 practically from the beginning. Score fluctuates a bit
first, stays at 1.27 rather fast, and later:
42220345 44.076 1.27 28. 1. Kg5 Kf7 2. Kh6 Kg8 3. h4 Kh8 4. Kh5 Kg8 5.
Kg4 Kg7 6. Kg5 Kf7 7. Kf5 Ke7 8. Ke5 Kd7 9. Kf6
Kc6 10. Kg7 h5 11. Kh6 Kb5 12. Kxh5 Kxa5 13.
Kg5 b5 14. h5 b4 15. h6 b3 16. h7 Ka4 17. h8=Q
Ka3
43862717 45.739 1.67 29++ 1. Kg5 Kf7 2. Kh6 Kg8 3. h4 Kh8 4. Kh5 Kg8 5.
Kg4 Kg7 6. Kg5 Kf7 7. Kf5 Ke7 8. Ke5 Kd7 9. Kf6
Kd6 10. Kg7 Ke6 11. Kxh7 Kf7 12. h5 Kf6 13. Kg8
Kg5 14. Kf7 Kh6 15. Ke7 Kg5H 16. h6H Kf4H 17.
h7H b5H 18. h8=QH b4H {HT}
46063605 48.463 2.67 29++ 1. Kg5 Kf7 2. Kh6 Kg8 3. h4 Kh8 4. Kh5 Kg8 5.
Kg4 Kg7 6. Kg5 Kf7 7. Kf5 Ke7 8. Ke5 Kd7 9. Kf6
Kd6 10. h5 Kd5 11. Kg7 Ke5 12. Kxh7 Kd5 13. h6
Kd6 14. Kh8 Ke7 15. Kg8 Ke6H 16. h7H Kd5H 17.
h8=QH b6H {HT}
48921017 51.026 4.73 29t 1. Kg5 Kf7 2. Kh6 Kg8 3. h4 Kh8 4. Kh5 Kg7 5.
Kg5 Kf7 6. Kf5 Ke7 7. Ke5 Kd7 8. Kf6 Kc6 9. h5
Kb5 10. Kg7 Kxa5 11. Kxh7 b5 12. h6 b4 13. Kg7
[...]
176082567 2:53.9 8.13 32t 1. Kg5 Kf7 2. Kh6 Kg8 3. h4 Kh8 4. Kh5 Kg7 5.
Kg5 Kf7 6. Kf5 Ke7 7. Ke5 Kd7 8. Kf6 Kc6 9. h5
Kb5 10. Kg7 Kxa5 11. Kxh7 b5 12. h6 b4 13. Kg7
b3 14. h7 Kb4H 15. h8=QH Kc3H {HT}
Regards,
Dieter
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