Author: Dann Corbit
Date: 11:49:17 05/27/02
Go up one level in this thread
On May 27, 2002 at 14:31:16, Bo Sjögren wrote:
>Many years ago I was outplayed for most of the game, but my opponent
>allowed me to "close the shop":
>
>[D]8/p7/6kp/1p2p3/1P2P2P/2P5/1P3K2/8 w - -
>
>White must play 1.h5+!, which I think we concluded after the game wins
>rather easily. But instead he played 1. b3?? and after 1...h5! he
>thought for five minutes, and shook his head (and my hand)...
>
>Does the current crop of engines recognise the danger? It seems CT14
>prefers 1.h5+, but is almost as happy with 1.b3 -- just a one minute
>check. Will any engine conclude that 1.b3 is indeed a draw, and how
>will it do it; by some kind of intelligence, or brute force? (I of
>course have the feeling that brute force is not enough for this type
>of problem.)
Yace says:
Crafty is the magic word, Scid wants to see
Yace (Yet another chess engine) version 0.99.57
Type help for a (very unhelpful) list of commands
Make sure, you have a file yace.ini in the current directory, with a line:
hash 30M
or similar, otherwise Yace will only use a very small hash of 1M.
feature done=0
Could not open "dbbook.bin" in mode rb: Winboard does not like my error message
entries 87381 size 1048572 size_wanted 1048576 tts3 29126
pos_learn = 1
Stored 8 learned positions into hash table
book_learn = 4
Could not open "dblearn.bin" in mode rb: Winboard does not like my error message
hash size wanted 65000000
Stored 8 learned positions into hash table
entries 5416665 size 64999980 size_wanted 65000000 tts3 1805554
5-men endgame table bases found
white ( 1): hash 300M
hash size wanted 300000000
Stored 8 learned positions into hash table
entries 24999999 size 299999988 size_wanted 300000000 tts3 8333332
white ( 1): st 9999
white ( 1): epd \1.epd
8/p7/6kp/1p2p3/1P2P2P/2P5/1P3K2/8 w - - bm h5+ am b3;
Stored 8 learned positions into hash table
solution h5+!ERROR move am rejected
b3!
usetime = 9998.00, mintime = 9998.00 maxtime = 9998.00 tl 9998.00 ml 0
1 0.000 1.15 1t 1.Ke3 {80}
12 0.000 1.15 1. 1.Ke3 {80}
22 0.009 1.00 2t 1.Ke3 Kf6 {80}
52 0.009 1.00 2. 1.Ke3 Kf6 {80}
100 0.009 -0.17 3-- 1.Ke3 Kh5 2.c4 bxc4H {0}
113 0.010 -0.17 3t 1.Ke3 Kh5 2.c4H {80}
148 0.010 0.83 3t+ 1.Kf3 h5 2.Kg3 {80}
185 0.010 0.90 3t 1.Kf3 Kh5 2.Kg3 {80}
230 0.011 0.96 3t+ 1.b3 Kh5 2.Kg3 {80}
248 0.011 0.96 3t 1.b3 Kh5 2.Kg3 {80}
324 0.011 0.96 3. 1.b3 Kh5 2.Kg3 {80}
419 0.011 0.90 4t 1.b3 Kh5 2.Kg3 a6 {80}
1163 0.013 0.90 4. 1.b3 Kh5 2.Kg3 a6 {80}
1399 0.013 1.32 5++ 1.b3 Kh7 2.Ke3 Kg6 3.c4 {80}
1779 0.014 1.56 5t 1.b3 Kh5 2.c4 a6 3.c5H {80}
4019 0.017 1.56 5. 1.b3 Kh5 2.c4 a6 3.c5 {80}
5058 0.029 1.43 6t 1.b3 Kh5 2.c4 Kxh4 3.c5 h5 {0}
9614 0.037 1.43 6. 1.b3 Kh5 2.c4 Kxh4 3.c5 h5 {0}
14326 0.045 1.73 7t 1.b3 Kf6 2.c4 h5 3.Ke3 Ke6 4.cxb5H {160}
28767 0.068 1.73 7. 1.b3 Kf6 2.c4 h5 3.Ke3 Ke6 4.cxb5 {160}
44185 0.093 1.66 8t 1.b3 Kf6 2.c4 a6 3.c5 h5 4.Ke3 Ke6 {80}
70217 0.141 1.66 8. 1.b3 Kf6 2.c4 a6 3.c5 h5 4.Ke3 Ke6 {80}
104152 0.193 1.73 9t 1.b3 h5 2.c4 Kf6 3.cxb5H Ke6H 4.Ke1H {160}
152175 0.269 1.73 9. 1.b3 h5 2.c4 Kf6 3.cxb5 Ke6 4.Ke1 {160}
197671 0.337 1.67 10t 1.b3 h5 2.c4 a6 3.c5 Kf6 4.Ke3 Ke7 {80}
280858 0.472 1.67 10. 1.b3 h5 2.c4 a6 3.c5 Kf6 4.Ke3 Ke7 {80}
369056 0.606 1.72 11t 1.b3 h5 2.c4 a6 3.c5 Kf6 4.Ke3 Ke7 5.Kd2 Kf6
6.c6 {80}
559281 0.914 1.72 11. 1.b3 h5 2.c4 a6 3.c5 Kf6 4.Ke3 Ke7 5.Kd2 Kf6
6.c6 {80}
668492 1.101 1.66 12t 1.b3 h5 2.c4 a6 3.c5 Kf6 4.Ke3 Ke7 5.Kd2 Kd7
6.Kd3 Kc6 {80}
1176965 1.910 1.66 12. 1.b3 h5 2.c4 a6 3.c5 Kf6 4.Ke3 Ke7 5.Kd2 Kd7
6.Kd3 Kc6 {80}
1363084 2.201 1.66 13t 1.b3 h5 2.c4 a6 3.c5 Kf6 4.Ke3 Ke7 5.Kd2 Kd7
6.Ke2 Kc6 7.Kd3 {80}
1886119 3.046 1.66 13. 1.b3 h5 2.c4 a6 3.c5 Kf6 4.Ke3 Ke7 5.Kd2 Kd7
6.Ke2 Kc6 7.Kd3 {80}
2155976 3.479 1.66 14t 1.b3 h5 2.c4 a6 3.c5 Kf6 4.Ke3 Ke7 5.Kd2 Kd7
6.Kc2 Kc7 7.Kc3 Kc6H 8.Kc2H Kd7H 9.Kc3H Kc7H
10.Kd3H Kc6H {80}
2883335 4.640 1.66 14. 1.b3 h5 2.c4 a6 3.c5 Kf6 4.Ke3 Ke7 5.Kd2 Kd7
6.Kc2 Kc7 7.Kc3 Kc6 8.Kc2 Kd7 9.Kc3 Kc7 10.Kd3
Kc6 {80}
3296303 5.311 1.65 15t 1.b3 h5 2.c4 Kf6 3.c5 Ke7 4.Ke3H Kd8H 5.Kd2H
a6H 6.Kd3H Ke7H 7.Kc2H Kd7H 8.Kc3H Kc7H 9.Kc2H
Kd7H 10.Kc3H Kc7H 11.Kc2H Kd7HR {80}
6364247 10.343 1.65 15. 1.b3 h5 2.c4 Kf6 3.c5 Ke7 4.Ke3 Kd8 5.Kd2 a6
6.Kd3 Ke7 7.Kc2 Kd7 8.Kc3 Kc7 9.Kc2 Kd7 10.Kc3
Kc7 11.Kc2 Kd7 {80}
7034178 11.431 1.56 16t 1.b3 h5 2.c4 a6 3.c5 Kf7 4.Ke3 Ke7 5.Kd2 Kd7
6.Kd3 Kc6 7.Kc2 Kc7H 8.Kc3H Kc6H 9.Kc2H Kc7H
10.Kc3H Kc6H 11.Kc2HR {80}
7522916 12.261 1.57 16t+ 1.Kf3 Kh5 2.Kg3 Kg6 3.h5+ Kh7 4.c4 bxc4 5.Kg4
a6 6.Kf5 Kg7 7.Kxe5 Kf7H 8.Kd5H c3H 9.bxc3H
Kf6H 10.b5H axb5H 11.e5+H Kf5H 12.Kd4H {80}
8093690 13.229 1.64 16t 1.Kf3 Kh5 2.Kg3 Kg6 3.h5+ Kxh5 4.b3 Kg5 5.c4
Kf6 6.Kg4 Kg6 7.Kh4 Kf6 8.Kg4H Ke7H 9.Kh5H a6H
10.Kxh6H Kf6H 11.Kh5H Kg7H 12.Kg5H bxc4H
13.bxc4H Kf7H 14.c5H Ke6H 15.Kg4H Kd7H 16.Kf5H
Kc7H 17.Kxe5H Kb7H 18.c6+H Kxc6H 19.Kd4H {80}
13440169 22.096 1.65 16t+ 1.Kg3 h5 2.Kf3 Kf6 3.Ke3 Ke6 4.Kd3 Kd6 5.c4
bxc4+ 6.Kxc4 Kc6 7.b5+ Kd7 8.Kd5 a5 9.Kxe5 Kd8
10.b6 Kc8H 11.b3H Kb7H 12.Kd5H Kxb6H 13.e5H {80}
13445594 22.107 1.64 16t- 1.Kg3 Kh5 2.b3 Kg6 3.h5+ Kxh5 4.Kf3 Kg5 5.c4
Kg6 6.Kg3H Kf7H 7.c5H {HT}
13445594 22.107 1.64 16t 1.Kf3 Kh5 2.Kg3 Kg6 3.h5+ Kxh5 4.b3 Kg5 5.c4
Kf6 6.Kg4 Kg6 7.Kh4 Kf6 8.Kg4 Ke7 9.Kh5 a6
10.Kxh6 Kf6 11.Kh5 Kg7 12.Kg5 bxc4 13.bxc4 Kf7
14.c5 Ke6 15.Kg4 Kd7 16.Kf5 Kc7 17.Kxe5 Kb7
18.c6+ Kxc6 19.Kd4 {80}
13666314 22.465 1.64 16. 1.Kf3 Kh5 2.Kg3 Kg6 3.h5+ Kxh5 4.b3 Kg5 5.c4
Kf6 6.Kg4 Kg6 7.Kh4 Kf6 8.Kg4 Ke7 9.Kh5 a6
10.Kxh6 Kf6 11.Kh5 Kg7 12.Kg5 bxc4 13.bxc4 Kf7
14.c5 Ke6 15.Kg4 Kd7 16.Kf5 Kc7 17.Kxe5 Kb7
18.c6+ Kxc6 19.Kd4 {80}
14970564 24.745 1.65 17t 1.Kf3 h5 2.Ke3 a6 3.Kd3 Kf7 4.c4H Ke7H 5.Kc3H
Ke6H 6.c5H Kd7H 7.Kd3H Ke7H 8.Kc3H Ke6H 9.Kd2H
Ke7H 10.Kc2H Kd7H 11.Kb3H Kc7H 12.Kc2H Kc6H
13.Kc1H Kd7H 14.Kd2H Kc6H 15.Kc2H Kc7H 16.Kc1H
Kd7H 17.Kd2H Kc6H 18.Kc2H Kc7H 19.Kc1H Kd7HR
{80}
20184814 33.579 1.66 17t+ 1.h5+ Kg5 2.Ke3 Kxh5 3.b3 Kg6 4.c4 Kf6 5.c5 h5
6.Kf3 Ke7 7.Kg3 Ke8 8.Kh4 a5H 9.bxa5H Kd7H
10.c6+H Kd8H 11.c7+H Kxc7H 12.Kxh5H b4H 13.Kh6H
Kb7H 14.Kg6H Ka6H 15.Kf6H Kxa5H 16.Kxe5H Kb6H
{80}
21598696 35.916 1.70 17t 1.h5+ Kg5 2.Kg3 Kf6 3.Kf3 Kg5 4.b3 Kxh5 5.c4
Kg5H 6.c5H h5H 7.c6H a5H 8.bxa5H Kf6H 9.a6H h4H
10.c7H b4H 11.c8=QH h3H {1001}
22186862 36.896 1.70 17. 1.h5+ Kg5 2.Kg3 Kf6 3.Kf3 Kg5 4.b3 Kxh5 5.c4
Kg5 6.c5 h5 7.c6 a5 8.bxa5 Kf6 9.a6 h4 10.c7 b4
11.c8=Q h3 {1001}
30035001 49.971 1.78 18t 1.h5+ Kf6 2.b3 a6 3.c4H Ke6H 4.c5H Kd7H 5.Kg3H
Ke7H 6.Kf3H Kf8H 7.Kg4H Ke8H 8.Kf5H Kd7H
9.Kxe5H a5H 10.bxa5H Kc7H 11.c6H Kc8H 12.a6H
Kb8H 13.a7+H Kxa7H 14.c7H Kb7H 15.c8=Q+H Kxc8H
16.Kd5H b4H 17.e5H Kd7H 18.e6+H Ke8H 19.Ke5H
Ke7H 20.Kf5H {80}
32769452 54.799 1.78 18. 1.h5+ Kf6 2.b3 a6 3.c4 Ke6 4.c5 Kd7 5.Kg3 Ke7
6.Kf3 Kf8 7.Kg4 Ke8 8.Kf5 Kd7 9.Kxe5 a5 10.bxa5
Kc7 11.c6 Kc8 12.a6 Kb8 13.a7+ Kxa7 14.c7 Kb7
15.c8=Q+ Kxc8 16.Kd5 b4 17.e5 Kd7 18.e6+ Ke8
19.Ke5 Ke7 20.Kf5 {80}
35749604 59.992 2.18 19++ 1.h5+ Kf6 2.b3 a6 3.c4 Ke6 4.c5 Kd7 5.Kg3 Ke7
6.Kg4 Ke6 7.c6 Kd6 8.Kf5 a5 9.bxa5 Kxc6 10.a6
Kc7 11.a7 Kb7 12.a8=Q+ Kxa8H 13.Kxe5H b4H
14.Kd5H Kb8H 15.Kc4H Kc7H 16.Kxb4H Kc6H 17.Ka5H
Kd7H 18.Ka6H Ke6H 19.Ka7H {160}
37461749 1:02.9 2.38 19t 1.h5+ Kf6 2.b3 a6 3.c4 Ke6 4.Kf3 Kf6 5.c5 Kf7
6.Kg4 Ke6 7.c6 Kd6 8.Kf5 Kxc6 9.Kxe5 Kd7 10.Kf5
Kd6 11.Kg6 Ke5 12.Kxh6 Kd4H 13.Kg6H {160}
41457973 1:10.4 2.38 19. 1.h5+ Kf6 2.b3 a6 3.c4 Ke6 4.Kf3 Kf6 5.c5 Kf7
6.Kg4 Ke6 7.c6 Kd6 8.Kf5 Kxc6 9.Kxe5 Kd7 10.Kf5
Kd6 11.Kg6 Ke5 12.Kxh6 Kd4 13.Kg6 {160}
68019334 1:57.6 1.98 20-- 1.h5+ Kxh5 2.Kg3 a6 3.b3 Kg5 4.c4 Kf6 5.Kh4 Kf7
6.cxb5 axb5 7.Kg4 Kg7 8.Kf5 Kh7 9.Kxe5 h5
10.Kd5 h4 11.e5 Kg7 12.e6 h3 13.e7 h2 14.e8=R
h1=Q+ 15.Kc5 {-421}
84795418 2:28.7 1.98 20t 1.h5+ Kxh5 2.b3H Kh4H 3.c4H bxc4H 4.bxc4H h5H
5.c5H a5H 6.bxa5H Kg5H 7.c6H Kg6H 8.a6H h4H
9.a7H h3H {HT}
94614047 2:46.2 1.98 20. 1.h5+ Kxh5 2.b3 Kh4 3.c4 bxc4 4.bxc4 h5 5.c5 a5
6.bxa5 Kg5 7.c6 Kg6 8.a6 h4 9.a7 h3
103802285 3:03.1 2.38 21++ 1.h5+ Kxh5 2.b3 Kh4 3.c4 bxc4 4.bxc4 h5 5.c5 a5
6.bxa5 Kg5 7.c6 Kg6 8.a6 h4 9.a7 h3
110313441 3:14.2 3.38 21++ 1.h5+ Kxh5 2.b3 Kh4 3.c4 bxc4 4.bxc4 h5 5.c5 a5
6.bxa5 Kg5 7.c6 Kg6 8.a6 h4 9.a7 h3
147331514 4:21.2 3.75 21t 1.h5+ Kxh5 2.b3 Kh4 3.c4 Kg5 4.Kg3 h5 5.c5 Kf6
6.Kh4 a6 7.Kxh5 Kf7 8.Kg5 Ke6 9.Kg6 Kd7 10.Kf5H
a5H 11.bxa5H Kc7H 12.Kxe5H Kb7H 13.a6+H Kxa6H
14.c6H Kb6H 15.Kd5H Ka6H 16.e5H Ka5H 17.Kc5H
Ka6H 18.c7H Kb7H 19.c8=Q+H {HT} {1081}
151146237 4:28.3 3.75 21. 1.h5+ Kxh5 2.b3 Kh4 3.c4 Kg5 4.Kg3 h5 5.c5 Kf6
6.Kh4 a6 7.Kxh5 Kf7 8.Kg5 Ke6 9.Kg6 Kd7 10.Kf5
a5 11.bxa5 Kc7 12.Kxe5 Kb7 13.a6+ Kxa6 14.c6
Kb6 15.Kd5 Ka6 16.e5 Ka5 17.Kc5 Ka6 18.c7 Kb7
19.c8=Q+ {HT} {1081}
244824947 7:24.3 4.14 22t 1.h5+ Kxh5 2.Kg3 Kg5 3.b3 Kf6 4.Kh4 Kf7 5.Kh5
Kg7 6.c4H Kh8H 7.Kxh6H bxc4H 8.bxc4H Kg8H 9.c5H
Kf7H 10.b5H Ke7H 11.Kg5H Kf7H 12.Kf5H Kf8H
13.Kxe5H Ke8H 14.b6H a5H 15.Kf5H Kd8H 16.e5H
Kd7H {HT} {160}
249882900 7:35.4 4.14 22. 1.h5+ Kxh5 2.Kg3 Kg5 3.b3 Kf6 4.Kh4 Kf7 5.Kh5
Kg7 6.c4 Kh8 7.Kxh6 bxc4 8.bxc4 Kg8 9.c5 Kf7
10.b5 Ke7 11.Kg5 Kf7 12.Kf5 Kf8 13.Kxe5 Ke8
14.b6 a5 15.Kf5 Kd8 16.e5 Kd7 {HT} {160}
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