Author: Tim Foden
Date: 07:15:46 02/09/01
Go up one level in this thread
On February 09, 2001 at 06:51:15, leonid wrote:
>On February 09, 2001 at 06:47:28, leonid wrote:
>
>>Hi!
>>
>>If you like to solve a forced mate, you can try this position:
>>
>>[D]1bqQBnRn/3N2Qb/Q1QN2np/1Q1Q1qpk/4Qqbn/2B1Qrnn/2Q5/K1R5 w - -
>>
>>Please, indicate your result.
>>
>>By curiosity I looked what is the NPS (nodes/second) for this position. Since
>>the number of moves, during the solution of mate went quit often up to 130 for
>>whites, NPS was more that impressive. If it could be the same all the time! On
>>It went up in around 60% as average. It is the same for your program? NPS depend
>>greatly on number of average moves existing in each ply?
>>
>>Thanks,
>>Leonid.
Green Light Chess v2.13-pr1, 920MHz Duron, 24MB hash,
finds a mate in 8 after 7:51.
Analysis:
>anal
Game stage: Opening
Current eval: 43.36
Ply Time Score Nodes Principal Variation
2 0.08 -- 18165 Qaxc8 (a=45.62 b=46.62 e=45.62)
2 0.08 42.98 18361 Qaxc8 Nxe4
2 0.16 42.99 35609 Q3xf4 Qxa6+ Qbxa6 Nxf4
2 0.16 43.00 36439 Q4xf4 Qxa6+ Qbxa6 Nxf4
2 0.17 43.10 40102 Qexf5 Qxa6+ Qbxa6 Nhxf5
2 0.19 44.47 42854 Nxf5 Qxa6+ Qbxa6 Nxe4
2 0.21 44.47 51692 Nxf5 Qxa6+ Qbxa6 Nxe4
3 0.21 ++ 52071 Nxf5 (a=43.97 b=44.97 e=44.97)
3 0.30 48.72 69182 Nxf5 Qxa6+ Qbxa6 Nhxf5 Nf6+ Kh4 Q4xf4
3 0.76 48.72 353305 Nxf5 Qxa6+ Qbxa6 Nhxf5 Nf6+ Kh4 Q4xf4
4 3.21 -- 1948491 Nxf5 (a=48.22 b=49.22 e=48.22)
4 3.35 48.12 2012980 Nxf5 Qxa6+ Qbxa6 Qxf5 Qexf5 Rxf5 Rxh8
4 3.56 ++ 2128123 Bxg6+ (a=-321.00 b=48.23 e=48.23)
4 4.45 48.42 2706588 Bxg6+ Nh4xg6 Nxf5 Qxf5 Qdxc8 Nxe4
4 4.46 48.42 2709198 Bxg6+ Nh4xg6 Nxf5 Qxf5 Qdxc8 Nxe4
5 11.07 48.16 7163968 Bxg6+ Nh4xg6 Qaxc8 Bxd6 Q4xf4 Ngxf4 Qcxf5 Rxe3
5 20.04 48.20 13044k Qcxc8 Nxe4 Nxf5 Nxf5 Qxf4
5 21.84 48.24 14239k Qaxc8 Nxe4 Nxf5 Nxf5 Qxf4
5 22.33 48.24 14556k Qaxc8 Nxe4 Nxf5 Nxf5 Qxf4
6 29.47 ++ 19473k Bxg6+ (a=47.74 b=48.74 e=48.74)
6 50.75 320.81 36057k Bxg6+ Nh4xg6 Qxh6+ Kxh6 Qxg5+ Q4xg5 Nxf5+ Rxf5 Qxg5+
Kxg5 Qf6+ Kh5 Qxg4+ Kxg4 Qdxf5+ Nxf5 Qbxf5+ Kg3
Qf3# <ht>
6 2:13 320.83 109268k Qxg5+ Nxg5 Bxg6+ Nfxg6 Nf6+ Qxf6 Qxg5+ Q4xg5 Qexg5+
Qxg5 Qxg5+ Kxg5 Bd2+ Re3 Qxe3+ Kh5 Qexh6#
6 2:25 320.83 119054k Qxg5+ Nxg5 Bxg6+ Nfxg6 Nf6+ Qxf6 Qxg5+ Q4xg5 Qexg5+
Qxg5 Qxg5+ Kxg5 Bd2+ Re3 Qxe3+ Kh5 Qexh6#
7 3:15 320.83 168917k Qxg5+ Nxg5 Bxg6+ Nfxg6 Nf6+ Qxf6 Qxg5+ Q4xg5 Qexg5+
Qxg5 Qxg5+ Kxg5 Bd2+ Re3 Qxe3+ Kh5 Qexh6#
7 7:00 320.85 397029k Bxg6+ Nh4xg6 Q4xf4 Qxd8 Qxh6+ Kxh6 Nxf5+ Nxf5 Bg7+
Kh5 Qxg4+ Kxg4 Qdxf3+ Kh4 Qxh3#
7 8:09 320.85 467170k Bxg6+ Nh4xg6 Q4xf4 Qxd8 Qxh6+ Kxh6 Nxf5+ Nxf5 Bg7+
Kh5 Qxg4+ Kxg4 Qdxf3+ Kh4 Qxh3#
8 9:44 320.85 565548k Bxg6+ Nh4xg6 Q4xf4 Rxf4 Qcxf5 Qxd8 Qxh6+ Kxh6 Nf7+
Kh5 Qxg5+ Nxg5 Qxg5+ Qxg5 Qxg5# <ht>
8 18:30 320.85 1110m Bxg6+ Nh4xg6 Q4xf4 Rxf4 Qcxf5 Qxd8 Qxh6+ Kxh6 Nf7+
Kh5 Qxg5+ Nxg5 Qxg5+ Qxg5 Qxg5# <ht>
9 21:00 0/126 Bxg6+ >exit
local: t=21:04 nps=1007888.9 n=1274392901 (f=194046889 q=1080346012)
total: t=21:04 nps=1007888.9 n=1274392901 draws=14928
trans: probes=89072410 hits=6342194 (7.12%) draft=4969004 (5.58%)
tcuts: exact=324 (0.00%) upper=2656502 (2.98%) lower=1748110 (1.96%)
tstor: exact=828 (0.00%) upper=35737010 (73.36%) lower=12974884 (26.64%)
ext: check=114159362 recap=2124961 ppush=7 1rep=2954787 thrt=0
q-moves: gen=33679754 tested=3534917 made/un=703257 max-dep=9
max eval diff: part-1=1.97 part-2=1.96
Cheers, Tim.
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