Author: leonid
Date: 13:57:46 05/15/01
Go up one level in this thread
On May 15, 2001 at 16:38:22, Dann Corbit wrote:
>On May 15, 2001 at 06:30:34, leonid wrote:
>
>>Hi!
>>
>>If you would like to solve one simple mate then you have one.
>
>Yace finds the key move soon enough, but the quiescent explosion has proved to
>much to find a quick solution:
>
>E:\yace\Release>yace
>Yace (Yet another chess engine) version 0.99.01
>
>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.
>DBBOOK100 50000 128 20 ff 139673
>entries 87381 size 1048572 size_wanted 1048576 tts3 29126
>pos_learn = 1
>Stored 0 learned positions into hash table
>hash size wanted 300000000
>Stored 0 learned positions into hash table
>entries 24999999 size 299999988 size_wanted 300000000 tts3 8333332
>5-men endgame table bases found
>white ( 1): st 999
>white ( 1): test m.ci
>title "easy for Leonid, not for me"
If this position should be solved by brute force, and not by selective, then
position is slow for me as well. To give you right idea, will say my numbers.
Celeron 600Mhz. Mate solver with no hash. Selective, 9 moves - 2 seconds. Brute
force, 9 moves - 1 hour 23 min. This position is mate in 9 moves.
Cheers,
Leonid.
>Stored 0 learned positions into hash table
>solution Nef5+
>usetime = 998.00, mintime = 998.00 maxtime = 998.00 tl 998.00 ml 0
> 1101466 4.721 -0.39 1t 1.N2xe4 Q6xa2+ 2.Qxa2 Qgxa2+ 3.Qca3 Rxb7 {-160}
> 2233858 9.975 -0.37 1t 1.Q7xe4 Qxa6+ 2.Qca5 Qxa5+ 3.Kxa5 Rxb1 4.gxh7
> Qxb4+ 5.Qexb4 Qxa2+H 6.Qba3H Qxa3+H 7.Qxa3H
> {-160}
> 2566382 11.525 -0.20 1t 1.Q1xe4 Qxa2+ 2.Qca3 Nxe4 3.Bxg5+ Nxg5 4.Qxb8
> Qxa6+ 5.Qa5 Bxd6 {-9}
> 4002496 17.928 1.73 1t 1.Q4xe4 Qxa2+ 2.Q3a3 Rxb7 3.Bxg5+ Kh5 {180}
> 6075699 26.831 2.40 1t+ 1.Qxh7+ Qxh7 2.Bxg5+ {179}
> 6181706 27.300 3.48 1t 1.Qxh7+ Qxh7 2.Bxg5+ Kh5 3.N2xe4 Qxb4+ 4.Q3xb4
> Qxa6+ 5.Qca5 Rxb1 6.gxh7+ Qxe8+ 7.Ka3 Bxd6H
> 8.Nxd6H Rgxb4H 9.Qxa6H Qxe5H 10.Qxc8H {350}
> 8043986 35.506 3.59 1t+ 1.Bxg5+ Kxg5 {330}
> 12568857 55.063 7.40 1t 1.Bxg5+ Kh5 {680}
> 13768830 1:00.7 7.40 1. 1.Bxg5+ Kh5 {680}
> 16880153 1:15.0 7.00 2-- 1.Bxg5+ Kh5 2.N6xe4 Q6xa6+ 3.Qca5 Bxb7 4.Qxa6
> Bxb4 5.Nxg3+ Kxg5 6.Qxe2 Rxb1 7.Qxg4+ Kf6
> 8.gxh7 Qxa2+ 9.Qa3 {670}
> 18377785 1:21.7 4.99 2t 1.Bxg5+ Kh5 2.gxh7+ Qxe8+ 3.Ka3 Qexb7 4.Qxb7
> Bxb7 5.Qxh1+ Nxh1 6.hxg8=Q Qxa6+ 7.Kb2 Rxg5
> 8.Rxa6 Rxg8 {400}
> 18707423 1:23.2 5.00 2t+ 1.Qxh7+ Bh6 {840}
> 19153690 1:25.3 5.17 2t 1.Qxh7+ Qxh7 2.Nef5+ Q4xf5 3.Nxf5+ Qxf5 4.gxh7
> Qxa6+ 5.Ba5 Rxb1 6.h8=Q+ Qh7 7.Qxh7+ Nxh7 {581}
> 42269076 3:09.3 5.18 2t+ 1.Nef5+ Q4xf5 2.Nxf5+ Qxf5 {661}
> 44427858 3:19.1 7.80 2++ 1.Nef5+ Q4xf5 2.Nxf5+ Kh5 {1001}
> 71572865 5:25.4 20.07 2t 1.Nef5+ Kh5 2.Nxg3+ Rxg3 3.Qxh1+ Rh3 4.Qhxh3+
> Nxh3 5.Qxh3+ Qxh3 6.gxh7+ Kh6 7.hxg8=Q Bxb7
> 8.Qxf8+ Kh7 9.gxh3 Qxb4+ 10.Qxb4 Qxa6+ 11.Kb3
> {1950}
> 74007309 5:37.0 20.07 2. 1.Nef5+ Kh5 2.Nxg3+ Rxg3 3.Qxh1+ Rh3 4.Qhxh3+
> Nxh3 5.Qxh3+ Qxh3 6.gxh7+ Kh6 7.hxg8=Q Bxb7
> 8.Qxf8+ Kh7 9.gxh3 Qxb4+ 10.Qxb4 Qxa6+ 11.Kb3
> {1950}
> 94338051 7:14.3 20.47 3++ 1.Nef5+ Kh5 2.Qxh7+ Qxh7 3.Nxg3+ Kh6 4.Ngf5+
> Q6xf5 5.Nxf5+ Kh5 6.gxh7+ Nf7 7.Nxe4 Qxa6+
> 8.Ba5 Qxb4+ 9.Q3xb4 Bxf5 {2002}
> 125640482 9:41.5 20.65 3t 1.Nef5+ Kh5 2.Qxh7+ Qxh7 3.Nxg3+ Rxg3 4.Qxh1+
> Rh3 5.Qcxh3+ Nxh3 6.Qxh3+ Qxh3H 7.gxh7+H Kh6H
> {HT} {178}
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