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Subject: Re: Mate to solve... Green Light results

Author: Tim Foden

Date: 04:41:33 04/24/01

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On April 23, 2001 at 16:31:49, leonid wrote:

>Hi!
>
>If you would like to solve one mate then try this position:
>
>[D]1n1q1b1n/Nb2k2r/2r1n1pB/QRpPP1PB/1pP1NR2/7p/7K/3R4 w - -
>
>Please indicate your result.
>
>Thanks,
>Leonid

Green Light Chess v.214-pr8, 48M hash, 880MHz Duron.

Mate in 7 after 12 seconds.

Cheers, Tim.

Analysis:

>anal
 Game stage: Opening
 Current eval: 4.03
 Ply  Time   Score   Nodes  Principal Variation
  2   0.01  13.419    5096  Rxb7+ Rc7 Bxf8+ Nxf8 Rxc7+ Nbd7
  3   0.04      ++    5493  Rxb7+   (a=12.92 b=13.92 e=13.92)
  3   0.08  16.237   19927  Rxb7+ Rc7 d6+ Ke8 dxc7 Rxc7 Rxd8+ Kxd8
  3   0.09  16.237   26479  Rxb7+ Rc7 d6+ Ke8 dxc7 Rxc7 Rxd8+ Kxd8
  4   0.10      ++   27326  Rxb7+   (a=15.74 b=16.74 e=16.74)
  4   0.23  19.726   83921  Rxb7+ Rc7 Rxc7+ Qxc7 d6+ Qxd6 Bxf8+ Ke8 Nxd6+ Kd7
                              Qb5+ Kc7
  4   0.28  19.726  109628  Rxb7+ Rc7 Rxc7+ Qxc7 d6+ Qxd6 Bxf8+ Ke8 Nxd6+ Kd7
                              Qb5+ Kc7
  5   0.29      ++  113237  Rxb7+   (a=19.23 b=20.23 e=20.23)
  5   0.50  24.014  248192  Rxb7+ Rc7 Rxc7+ Qxc7 d6+ Ke8 Nf6+ Kf7 Qxc7+ Nxc7
                              Nxh7+ Ke6 dxc7 Bxh6 cxb8=Q
  5   0.72  24.014  379306  Rxb7+ Rc7 Rxc7+ Qxc7 d6+ Ke8 Nf6+ Kf7 Qxc7+ Nxc7
                              Nxh7+ Ke6 dxc7 Bxh6 cxb8=Q
  6   0.73      ++  383956  Rxb7+   (a=23.51 b=24.51 e=24.51)
  6   1.59  Mate09  988104  Rxb7+ Rc7 Rxc7+ Qxc7 d6+ Ke8 Nf6+ Kf7 Qxc7+ Nxc7
                              Ne4+ Ke6 Nxc5+ Kxe5 Re4+ Kf5 Bg4# <ht>
  6   2.52  Mate09 1650176  Rxb7+ Rc7 Rxc7+ Qxc7 d6+ Ke8 Nf6+ Kf7 Qxc7+ Nxc7
                              Ne4+ Ke6 Nxc5+ Kxe5 Re4+ Kf5 Bg4# <ht>
  7   4.82  Mate08 3459529  Rxb7+ Rc7 d6+ Ke8 dxc7 Rxc7 Rxd8+ Kxd8 Rxb8+ Kd7
                              Rf7+ Nxf7 Nf6+ Ke7 Re8# <ht>
  7   7.97  Mate08 5657003  Rxb7+ Rc7 d6+ Ke8 dxc7 Rxc7 Rxd8+ Kxd8 Rxb8+ Kd7
                              Rf7+ Nxf7 Nf6+ Ke7 Re8# <ht>
  8  11.70  Mate07 8737359  Rxb7+ Rc7 Qb6 Nc6 Qxc5+ Nxc5 Nxc6+ Kd7 Bg4+ Ne6
                              Bxe6+ Ke8 Rxf8# <ht>
  8  15.72  Mate07  12071k  Rxb7+ Rc7 Qb6 Nc6 Qxc5+ Nxc5 Nxc6+ Kd7 Bg4+ Ne6
                              Bxe6+ Ke8 Rxf8# <ht>
  9  20.67  Mate07  16306k  Rxb7+ Rc7 Qb6 Nc6 Qxc5+ Nxc5 Nxc6+ Kd7 Bg4+ Ne6
                              Bxe6+ Ke8 Rxf8# <ht>
  9  34.67  Mate07  28190k  Rxb7+ Rc7 Qb6 Nc6 Qxc5+ Nxc5 Nxc6+ Kd7 Bg4+ Ne6
                              Bxe6+ Ke8 Rxf8# <ht>
 10  34.68   0/54           Rxb7+  >exit
 local:  t=36.16  nps=812136.1  n=29368467  (f=6365312  q=23003155)
 total:  t=36.16  nps=812136.1  n=29368467  draws=2170
 trans:  probes=3949027  hits=685885 (17.37%)  draft=240353 (6.09%)
 tcuts:  exact=101 (0.00%)  upper=57592 (1.46%)  lower=124741 (3.16%)
 tstor:  exact=577 (0.03%)  upper=1403714 (68.16%)  lower=655230 (31.81%)
 ext:  check=2779003  recap=80260  ppush=158607  1rep=108061  thrt=0
 q-moves:  gen=389882  tested=66309  made/un=13781  max-dep=10
 max eval diff:  part-1=2.598  part-2=3.985
>



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