Author: leonid
Date: 09:37:52 08/25/01
Go up one level in this thread
On August 25, 2001 at 05:05:50, Tim Foden wrote:
>On August 24, 2001 at 06:26:22, leonid wrote:
>
>>[D]3kn3/3bn3/3bq3/3rqBRK/3rqNNB/3qq3/3qp3/QQRQQQQQ w - -
>>
>>Do you know that Chinese and English have one striking resemblance? They both
>>like using "up" and "down". Mate position that you see here is in fact one
>>character that say "up".
>>
>
>Green Light Chess 2.15-pr1, 920MHz Duron, 96MB hash,
>says Qb6+ is Mate in 10 after 35 seconds.
>
>Cheers, Tim.
>
>~~~~~~~~~~~~~
>
>Analysis:
>
>>anal
> Game stage: Opening
> Current eval: 7.50
> Ply Time Score Nodes Principal Variation
> 2 0.07 +16.513 5239 Nxe6+ Qxe6 Qxe3 Qd2xe3 Nxe3 exf1=Q Qxe4
> 3 0.11 +16.504 13346 Nxe6+ Qxe6 Qa8+ Nc8 Bxe6 exf1=Q Qexe3
> 3 0.19 +16.504 29680 Nxe6+ Qxe6 Qa8+ Nc8 Bxe6 exf1=Q Qexe3
> 4 0.27 +16.524 52686 Nxe6+ Qxe6 Qa8+ Bc8 Qb6+ Nc7 Bxe6 exd1=Q Rxd1
> 4 0.35 +16.533 86985 Qa8+ Bc8 Qb6+ Bc7 Nxe6+ Qxe6 {ht}
> 4 0.53 +16.533 152385 Qa8+ Bc8 Qb6+ Bc7 Nxe6+ Qxe6 {ht}
> 5 8.20 -- 2742426 Qa8+ (a=16.03 b=17.03 e=16.03)
> 5 9.02 +15.073 3081255 Qa8+ Bc8 Nxe6+ Qxe6 Qb6+ Bc7 Qxe6 Qxe6 Qxe3 Qexe3
> 5 11.01 +15.073 4006609 Qa8+ Bc8 Nxe6+ Qxe6 Qb6+ Bc7 Qxe6 Qxe6 Qxe3 Qexe3
> 6 11.67 ++ 4283483 Qa8+ (a=14.57 b=15.57 e=15.57)
> 6 26.53 +23.057 10830k Qa8+ Bb8 Nxe6+ Bxe6 Qb6+ Kd7 Nxe5+ Qxe5 Qbb7+ Bc7
> Bxd3 exd1=Q+ Rxd1
> 6 31.47 +26.806 12928k Qb6+ Bc7 Qa8+ Nc8 Rg8+ Q5f6 Bxf6+ Qxf6 Qxf6+ Qe7
> Nxe3 exf1=Q Nxd3 Qxf6 Nxf1
> 6 32.31 +26.806 13398k Qb6+ Bc7 Qa8+ Nc8 Rg8+ Q5f6 Bxf6+ Qxf6 Qxf6+ Qe7
> Nxe3 exf1=Q Nxd3 Qxf6 Nxf1
> 7 32.85 ++ 13598k Qb6+ (a=26.31 b=27.31 e=27.31)
> 7 35.00 Mate10 14838k Qb6+ Bc7 Qa8+ Nc8 Rg8+ Q5f6 Bxf6+ Qxf6 Qxc8+ Ke7
> Rxe8+ Bxe8+ Qxe8+ Kxe8 Nxf6+ Kf7 Qg8+ Ke7 Ng6#
> {ht}
> 7 39.01 Mate10 17653k Qb6+ Bc7 Qa8+ Nc8 Rg8+ Q5f6 Bxf6+ Qxf6 Qxc8+ Ke7
> Rxe8+ Bxe8+ Qxe8+ Kxe8 Nxf6+ Kf7 Qg8+ Ke7 Ng6#
> {ht}
> 8 46.67 Mate10 23280k Qb6+ Bc7 Qa8+ Nc8 Rg8+ Q5f6 Bxf6+ Qxf6 Qxc8+ Ke7
> Rxe8+ Bxe8+ Qxe8+ Kxe8 Nxf6+ Kf7 Qg8+ Ke7 Ng6#
> 8 1:28 Mate10 53487k Qb6+ Bc7 Qa8+ Nc8 Rg8+ Q5f6 Bxf6+ Qxf6 Qxc8+ Ke7
> Rxe8+ Bxe8+ Qxe8+ Kxe8 Nxf6+ Kf7 Qg8+ Ke7 Ng6#
> 9 2:20 Mate10 93932k Qb6+ Bc7 Qa8+ Nc8 Rg8+ Q5f6 Bxf6+ Qxf6 Qxc8+ Ke7
> Rxe8+ Bxe8+ Qxe8+ Kxe8 Nxf6+ Kf7 Qg8+ Ke7 Ng6#
> 9 3:10 1/73 Nxe5 >exit
> local: t=3:16 nps=693291.0 n=135928025 (16.9% / 83.1%) fh=95.4%
> total: t=3:16 nps=693291.0 n=135928025 draws=8467
> trans: probes=14146938 hits=1435339 (10.15%) draft=780423 (5.52%)
> tcuts: exact=181 (0.00%) upper=433673 (3.07%) lower=214317 (1.51%)
> tstor: exact=718 (0.01%) upper=7089179 (70.89%) lower=2910813 (29.11%)
> ext: check=15990112 recap=468680 ppush=0 1rep=452794 thrt=0
> q-moves: gen=41852347 tested=9637001 made/un=4546996 max-dep=9
> max eval diff: part-1=2.575 part-2=1.690
Hi!
Since you have very close result for this position, maybe you can see for me
also previous one. I am curious to find why my selective was so bad on it. By
seeing your result my guess could better done.
Selective for previous position was 10 min and 12 sec for mate in 10 moves
depth. I don't know exactly shortest mate for that position, since my 6 moves
brute force took already 2 hours and 2 min. It was too slow for me to look more
deeply.
By precaution will indicate that previous position.
[D]2nkq3/3qqn2/1rqqbbqr/2NQ1QN1/3Q1Q2/4Q3/1QRQ1QB1/1QK3BR w - -
Cheers,
Leonid.
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