Author: leonid
Date: 09:13:11 08/21/01
Go up one level in this thread
On August 21, 2001 at 10:15:53, Jim Monaghan wrote:
>Hi Leonid,
Hi!
>This one was easy for Yace on my old Cel 300 (96MB ram) 24MB hash. Mate in 9 (17
>ply) in 2 min 21 seconds!
Is this mate found by brute force or selective search?
If this result is of brute force it is close or much better that mine. My
computer is Celeron 600. No hash. Time - 6 min 34 sec. NPS - 58k
Nine moves are actually minimal number that lead to mate.
Selective also found mate in 9 moves in 0.22 sec. NPS - 597k
Cheers,
Leonid.
>6 29983 20125 9753876 t 1.Rg6+ Qfg7 2.Nf6+ Kf8 3.Nfh7+ Qgxh7 4.Nxh7+ Qxh7
>5.Rg8+ Qxg8 6.Qh6+ Ke7 7.Qfh4+H Qg5H 8.Q6xg5+H Kxf7H 9.Qg7#H {-2421}
>6 29983 40268 20622908 . 1.Rg6+ Qfg7 2.Nf6+ Kf8 3.Nfh7+ Qgxh7 4.Nxh7+ Qxh7
>5.Rg8+ Qxg8 6.Qh6+ Ke7 7.Qfh4+ Qg5 8.Q6xg5+ Kxf7 9.Qg7# {-2421}
>7 29983 61264 35037966 t 1.Rg6+ Qfg7 2.Nf6+ Kf8 3.Nfh7+ Qgxh7 4.Nxh7+ Qxh7
>5.Rg8+ Qxg8 6.Qh6+ Ke7 7.Qfh4+ Qg5H 8.Q6xg5+H Kxf7H {HT} {-2421}
>input: exit
>7 29983 61807 35315780 u. 1.Rg6+ Qfg7 2.Nf6+ Kf8 3.Nfh7+ Qgxh7 4.Nxh7+ Qxh7
>5.Rg8+ Qxg8 6.Qh6+ Ke7 7.Qfh4+ Qg5 8.Q6xg5+ Kxf7 {HT} {-2421}
> 35315780 10:18.0 Mat09 7u. 1.Rg6+ Qfg7 2.Nf6+ Kf8 3.Nfh7+ Qgxh7 4.Nxh7+
> Qxh7 5.Rg8+ Qxg8 6.Qh6+ Ke7 7.Qfh4+ Qg5
> 8.Q6xg5+ Kxf7 {HT} {-2421}
>35315780 Nodes, 71.47% Leavenodes, 57138 Nodes/sec
>19576748 eval, 100.00% score, 210545440 genmoves, 11.22% captures le 306/325
>ext: pawn 0, rcp 1884, chk 713960, repchk 59231, null 11603, prune 12205
>htable: 21756374 store, 298 rejected, 25237390 probe, 16.6% f/p, 19.3% f/s
>entries 1999998 age 1 renew 0
>egtb probes 0, found 0 max_depth 29
>
>Yace is an excellent mate finder. It doesn't get bogged down in positionally
>promising lines. Yace always tries to search for the truth ... Thank you,
>Dieter!
>
>Cheers,
>Jim
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