Author: Tim Foden
Date: 05:19:40 02/11/01
Go up one level in this thread
On February 11, 2001 at 07:41:00, leonid wrote:
>Hi!
>
>If you like to solve a mate, you can try the next one:
>
>[D]3n1nbk/5qpp/2Q2nq1/1pbQNBB1/p1p1QNn1/2B2Q2/1PP1P3/2K4R w - -
>
>Please, say your result.
Hi Leonid,
Green Light Chess v2.13-pr1 finds a mate in 9 ater 10.51 seconds,
and then finds a shorter mate in 8 after 20.73 seconds. It sticks
with this for a full 15 mins. I guess we'll have to wait for other
results to see if a shorter mate is found, or proven not to exist by
chest.
Cheers, Tim.
Analysis, GLC 2.13-pr1, 24MB hash, 920MHz Duron:
>anal
Game stage: Opening
Current eval: 18.38
Ply Time Score Nodes Principal Variation
3 0.01 29.64 5045 Nfxg6+ Qxg6 Nxg6+ Nxg6 Rxh7+ Bxh7
3 0.02 29.64 5184 Nfxg6+ Qxg6 Nxg6+ Nxg6 Rxh7+ Bxh7
4 0.05 29.69 15017 Nfxg6+ Qxg6 Nxg6+ Nxg6 Rxh7+ Bxh7 Qxd8+ Bg8
4 0.09 29.69 28281 Nfxg6+ Qxg6 Nxg6+ Nxg6 Rxh7+ Bxh7 Qxd8+ Bg8
5 0.53 -- 279496 Nfxg6+ (a=29.19 b=30.19 e=29.19)
5 0.54 ++ 282935 Nfxg6+ (a=-321.00 b=29.20 e=29.20)
5 0.55 29.22 288504 Nfxg6+ Qxg6 Nxg6+ Nxg6 Bgxf6 Be3+ Qfxe3 Bxd5
5 0.55 29.22 288589 Nfxg6+ Qxg6 Nxg6+ Nxg6 Bgxf6 Be3+ Qfxe3 Bxd5
6 0.56 ++ 292411 Nfxg6+ (a=28.72 b=29.72 e=29.72)
6 0.76 33.19 417592 Nfxg6+ Qxg6 Nxg6+ Nxg6 Bgxf6 Nxf6 Qxf6 Bf8 Rxh7+
Bxh7 Qfxd8
6 1.28 33.19 793375 Nfxg6+ Qxg6 Nxg6+ Nxg6 Bgxf6 Nxf6 Qxf6 Bf8 Rxh7+
Bxh7 Qfxd8
7 1.32 ++ 805216 Nfxg6+ (a=32.69 b=33.69 e=33.69)
7 2.43 36.34 1614187 Nfxg6+ Nxg6 Nxf7+ Nxf7 Bgxf6 Nxf6 Qxf6 Bd4 Qxg6 Nh6
Qge8
7 5.08 36.34 3523071 Nfxg6+ Nxg6 Nxf7+ Nxf7 Bgxf6 Nxf6 Qxf6 Bd4 Qxg6 Nh6
Qge8
8 5.21 ++ 3602654 Nfxg6+ (a=35.84 b=36.84 e=36.84)
8 10.51 320.83 7709270 Nfxg6+ Nxg6 Nxg6+ Qxg6 Qxg8+ Kxg8 Bxg6 Bf8 Qcd5+ Kh8
Rxh7+ Nxh7 Qg8+ Kxg8 Bxh7+ Kh8 Qxf8# <ht>
8 16.66 320.83 13745k Nfxg6+ Nxg6 Nxg6+ Qxg6 Qxg8+ Kxg8 Bxg6 Bf8 Qcd5+ Kh8
Rxh7+ Nxh7 Qg8+ Kxg8 Bxh7+ Kh8 Qxf8# <ht>
9 20.73 320.85 18003k Nfxg6+ Nxg6 Nxg6+ Qxg6 Qxg8+ Kxg8 Bxg6 Bf8 Qee8 Nxc6
<ht>
9 33.64 320.85 31079k Nfxg6+ Nxg6 Nxg6+ Qxg6 Qxg8+ Kxg8 Bxg6 Bf8 Qee8 Nxc6
<ht>
10 46.11 320.85 44792k Nfxg6+ Nxg6 Nxg6+ Qxg6 Qxg8+ Kxg8 Bxg6 Bf8 Qee8 Nxc6
Bxh7+ Kh8 Qxf8+ Ng8 Qxg8# <ht>
10 1:33 320.85 95317k Nfxg6+ Nxg6 Nxg6+ Qxg6 Qxg8+ Kxg8 Bxg6 Bf8 Qee8 Nxc6
Bxh7+ Kh8 Qxf8+ Ng8 Qxg8# <ht>
11 2:07 320.85 131947k Nfxg6+ Nxg6 Nxg6+ Qxg6 Qxg8+ Kxg8 Bxg6 Bf8 Qee8 Nxc6
Bxh7+ Kh8 Qxf8+ Ng8 Qxg8# <ht>
11 5:39 320.85 362972k Nfxg6+ Nxg6 Nxg6+ Qxg6 Qxg8+ Kxg8 Bxg6 Bf8 Qee8 Nxc6
Bxh7+ Kh8 Qxf8+ Ng8 Qxg8# <ht>
12 7:12 320.85 465267k Nfxg6+ Nxg6 Nxg6+ Qxg6 Qxg8+ Kxg8 Bxg6 Bf8 Qee8 Nxc6
Bxh7+ Kh8 Qxf8+ Ng8 Qxg8# <ht>
12 15:05 320.85 979669k Nfxg6+ Nxg6 Nxg6+ Qxg6 Qxg8+ Kxg8 Bxg6 Bf8 Qee8 Nxc6
Bxh7+ Kh8 Qxf8+ Ng8 Qxg8# <ht>
13 15:35 0/77 Nfxg6+ >exit
local: t=15:41 nps=1083291.8 n=1020411074 (f=240107661 q=780303413)
total: t=15:41 nps=1083291.8 n=1020411074 draws=91764
trans: probes=112029910 hits=9201810 (8.21%) draft=7150131 (6.38%)
tcuts: exact=502 (0.00%) upper=3102575 (2.77%) lower=3993515 (3.56%)
tstor: exact=1151 (0.00%) upper=23363721 (59.79%) lower=15711435 (40.21%)
ext: check=81987653 recap=1071090 ppush=966 1rep=2664045 thrt=0
q-moves: gen=4644993 tested=830649 made/un=164207 max-dep=10
max eval diff: part-1=2.36 part-2=1.71
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Last modified: Thu, 15 Apr 21 08:11:13 -0700
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