Author: Slater Wold
Date: 16:42:20 09/18/01
Go up one level in this thread
On September 18, 2001 at 13:44:33, Janosch Zwerensky wrote:
>Hi everyone,
>
>I don't expect that currently any program can solve one of these problems given
>less than weeks of reflection time, but I'd like to know anyway what different
>progs say:
>
>[D] 8/8/8/5Bp1/7k/7P/4pPK1/8 b - - 0 1
>
>Here, 1. ... g4 is the only way for black to win, since everything else (except
>for 1. ... e1N, which obviously doesn't win) leaves white with the possibility
>of responding with 2.Bg4! which permanently locks up black's king and thus
>secures the draw.
>Does any program find 1. ... g4! within a reasonable amount of time?
Reasonable amount of time? NO. But I did find it. WITH CRAFTY!
White(1): epdpfga test.epd test.out
PFGA: EPD record: 1 ID: test.1
end-game phase
clearing hash tables
time surplus 0.00 time limit 60:00 (60:00)
nss depth time score variation (1)
starting thread 1
11 1.01 -5.20 1. ... e1=Q 2. Bg4 Qe5 3. Bf3 Qf4 4.
Bg4 <HT>
11-> 1.26 -5.20 1. ... e1=Q 2. Bg4 Qe5 3. Bf3 Qf4 4.
Bg4 <HT>
12 1.39 -5.20 1. ... e1=Q 2. Bg4 Qe5 3. Bf3 Qf4 4.
Bg4 Qd2 5. Bf3 Qd7 6. Bg4 Qd5+ 7. Kh2
Qf7 8. Kg2 Qf4 <HT>
12-> 1.62 -5.20 1. ... e1=Q 2. Bg4 Qe5 3. Bf3 Qf4 4.
Bg4 Qd2 5. Bf3 Qd7 6. Bg4 Qd5+ 7. Kh2
Qf7 8. Kg2 Qf4 <HT>
13 1.81 -5.20 1. ... e1=Q 2. Bg4 Qe5 3. Bf3 Qf4 4.
Bg4 Qd2 5. Bf3 Qd7 6. Bg4 Qd5+ 7. Kh2
Qf7 8. Kg2 Qf4 <HT>
(3) 13-> 2.45 -5.20 1. ... e1=Q 2. Bg4 Qe5 3. Bf3 Qf4 4.
Bg4 Qd2 5. Bf3 Qd7 6. Bg4 Qd5+ 7. Kh2
Qf7 8. Kg2 Qf4 <HT>
(2) 14 2.89 -5.20 1. ... e1=Q 2. Bg4 Qe5 3. Bf3 Qf4 4.
Bg4 Qd2 5. Bf3 Qd7 6. Bg4 Qd5+ 7. Kh2
Qf7 8. Kg2 Qf4
(4) 14-> 3.86 -5.20 1. ... e1=Q 2. Bg4 Qe5 3. Bf3 Qf4 4.
Bg4 Qd2 5. Bf3 Qd7 6. Bg4 Qd5+ 7. Kh2
Qf7 8. Kg2 Qf4
(3) 15 4.06 -5.20 1. ... e1=Q 2. Bg4 Qe5 3. Bf3 Qf4 4.
Bg4 Qd2 5. Bf3 Qd7 6. Bg4 Qd5+ 7. Kh2
Qe5+ 8. Kg2 Qd5+ <HT>
(4) 15-> 5.97 -5.20 1. ... e1=Q 2. Bg4 Qe5 3. Bf3 Qf4 4.
Bg4 Qd2 5. Bf3 Qd7 6. Bg4 Qd5+ 7. Kh2
Qe5+ 8. Kg2 Qd5+ <HT>
(3) 16 6.73 -5.20 1. ... e1=Q 2. Bg4 Qe5 3. Bf3 Qf4 4.
Bg4 Qd2 5. Bf3 Qd7 6. Bg4 Qd5+ 7. Kh2
Qe5+ 8. Kg2 Qd5+ <HT>
(4) 16-> 10.08 -5.20 1. ... e1=Q 2. Bg4 Qe5 3. Bf3 Qf4 4.
Bg4 Qd2 5. Bf3 Qd7 6. Bg4 Qd5+ 7. Kh2
Qe5+ 8. Kg2 Qd5+ <HT>
(3) 17 10.86 -5.20 1. ... e1=Q 2. Bg4 Qe5 3. Bf3 Qf4 4.
Bg4 Qd2 5. Bf3 Qd7 6. Bg4 Qd5+ 7. Kh2
Qf7 8. Kg1 Qf6 9. Kf1 Qa6+ 10. Kg2
Qb7+ <HT>
(3) 17-> 14.75 -5.20 1. ... e1=Q 2. Bg4 Qe5 3. Bf3 Qf4 4.
Bg4 Qd2 5. Bf3 Qd7 6. Bg4 Qd5+ 7. Kh2
Qf7 8. Kg1 Qf6 9. Kf1 Qa6+ 10. Kg2
Qb7+ <HT>
(2) 18 16.23 -5.20 1. ... e1=Q 2. Bg4 Qe5 3. Bf3 Qf4 4.
Bg4 Qd2 5. Bf3 Qd7 6. Bg4 Qd5+ 7. Kh2
Qf7 8. Kg1 Qf6 9. Kf1 Qe5 10. Kg2 Qf4
(4) 18-> 23.58 -5.20 1. ... e1=Q 2. Bg4 Qe5 3. Bf3 Qf4 4.
Bg4 Qd2 5. Bf3 Qd7 6. Bg4 Qd5+ 7. Kh2
Qf7 8. Kg1 Qf6 9. Kf1 Qe5 10. Kg2 Qf4
(3) 19 25.31 -5.20 1. ... e1=Q 2. Bg4 Qe5 3. Bf3 Qf4 4.
Bg4 Qd2 5. Bf3 Qd7 6. Bg4 Qd5+ 7. Kh2
Qf7 8. Kg1 Qf6 9. Kf1 Qe5 10. Kg2 Qe4
11. Kh2 Qf4+ 12. Kg2
(4) 19-> 33.56 -5.20 1. ... e1=Q 2. Bg4 Qe5 3. Bf3 Qf4 4.
Bg4 Qd2 5. Bf3 Qd7 6. Bg4 Qd5+ 7. Kh2
Qf7 8. Kg1 Qf6 9. Kf1 Qe5 10. Kg2 Qe4
11. Kh2 Qf4+ 12. Kg2
(3) 20 36.42 -5.20 1. ... e1=Q 2. Bg4 Qe5 3. Bf3 Qf4 4.
Bg4 Qd2 5. Bf3 Qd7 6. Bg4 Qd5+ 7. Kh2
Qf7 8. Kg1 Qf6 9. Kf1 Qa1+ 10. Kg2
Qb1 11. Kh2 Qe4 <HT>
(4) 20-> 54.36 -5.20 1. ... e1=Q 2. Bg4 Qe5 3. Bf3 Qf4 4.
Bg4 Qd2 5. Bf3 Qd7 6. Bg4 Qd5+ 7. Kh2
Qf7 8. Kg1 Qf6 9. Kf1 Qa1+ 10. Kg2
Qb1 11. Kh2 Qe4 <HT>
(3) 21 59.73 -5.20 1. ... e1=Q 2. Bg4 Qe5 3. Bf3 Qf4 4.
Bg4 Qd2 5. Bf3 Qd7 6. Bg4 Qd5+ 7. Kh2
Qf7 8. Kg1 Qf6 9. Kf1 Qa1+ 10. Kg2
Qb1 11. Bf3 Qf5 12. Bg4 Qf4
(3) 21-> 1:24 -5.20 1. ... e1=Q 2. Bg4 Qe5 3. Bf3 Qf4 4.
Bg4 Qd2 5. Bf3 Qd7 6. Bg4 Qd5+ 7. Kh2
Qf7 8. Kg1 Qf6 9. Kf1 Qa1+ 10. Kg2
Qb1 11. Bf3 Qf5 12. Bg4 Qf4
(2) 22 1:36 -5.20 1. ... e1=Q 2. Bg4 Qe5 3. Bf3 Qf4 4.
Bg4 Qd2 5. Bf3 Qd7 6. Bg4 Qd5+ 7. Kh2
Qf7 8. Kg1 Qf6 9. Kf1 Qa1+ 10. Kg2
Qb1 11. Bf3 Qf5 12. Bg4 Qe4+ 13. Kh2
Qf4+ 14. Kg2
(3) 22-> 2:34 -5.20 1. ... e1=Q 2. Bg4 Qe5 3. Bf3 Qf4 4.
Bg4 Qd2 5. Bf3 Qd7 6. Bg4 Qd5+ 7. Kh2
Qf7 8. Kg1 Qf6 9. Kf1 Qa1+ 10. Kg2
Qb1 11. Bf3 Qf5 12. Bg4 Qe4+ 13. Kh2
Qf4+ 14. Kg2
(2) 23 2:46 -5.20 1. ... e1=Q 2. Bg4 Qe5 3. Bf3 Qf4 4.
Bg4 Qd2 5. Bf3 Qd7 6. Bg4 Qd5+ 7. Kh2
Qf7 8. Kg1 Qf6 9. Kf1 Qa1+ 10. Kg2
Qb1 11. Bf3 Qf5 12. Bg4 Qe4+ 13. Kh2
Qe5+ 14. Kg2 Qf4
(3) 23-> 4:34 -5.20 1. ... e1=Q 2. Bg4 Qe5 3. Bf3 Qf4 4.
Bg4 Qd2 5. Bf3 Qd7 6. Bg4 Qd5+ 7. Kh2
Qf7 8. Kg1 Qf6 9. Kf1 Qa1+ 10. Kg2
Qb1 11. Bf3 Qf5 12. Bg4 Qe4+ 13. Kh2
Qe5+ 14. Kg2 Qf4
(2) 24 5:11 -5.20 1. ... e1=Q 2. Bg4 Qe5 3. Bf3 Qf4 4.
Bg4 Qd2 5. Bf3 Qd7 6. Bg4 Qd5+ 7. Kh2
Qf7 8. Kg1 Qf6 9. Kf1 Qa1+ 10. Kg2
Qb1 11. Bf3 Qg6 12. Bg4 Qc6+ 13. Kh2
Qf6 14. Kg2 Qf4
(4) 24-> 10:41 -5.20 1. ... e1=Q 2. Bg4 Qe5 3. Bf3 Qf4 4.
Bg4 Qd2 5. Bf3 Qd7 6. Bg4 Qd5+ 7. Kh2
Qf7 8. Kg1 Qf6 9. Kf1 Qa1+ 10. Kg2
Qb1 11. Bf3 Qg6 12. Bg4 Qc6+ 13. Kh2
Qf6 14. Kg2 Qf4
(3) 25 11:57 -5.20 1. ... e1=Q 2. Bg4 Qe5 3. Bf3 Qf4 4.
Bg4 Qd2 5. Bf3 Qd7 6. Bg4 Qd5+ 7. Kh2
Qf7 8. Kg1 Qf6 9. Kf1 Qa1+ 10. Kg2
Qb1 11. Bf3 Qg6 12. Bg4 Qc6+ 13. Kh2
Qc2 14. Kg2 Qe4+ 15. Kh2 Qf4+ 16. Kg2
25 14:30 ++ 1. ... g4!!
25 18:30 1/6* 1. ... g4
I will also find the others. :)
Slate
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