Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: One mate to solve.

Author: Heiner Marxen

Date: 08:20:21 01/12/02

Go up one level in this thread


On January 12, 2002 at 09:47:09, leonid wrote:

>[D]KnqqkqnQ/1QqrrqQ1/2QqqQ2/1bBNNBb1/1Q4Q1/P6P/2p2p2/3RR3 w - -
>
>Please indicate your result.
>
>Thanks,
>Leonid.

This one is "easy" for Chest.  After 4.3 minutes it announces two solutions
in 10 moves:

PV: Nxc7+ Qcxc7 Qxf8+ Kxf8 Qxg8+ Kxg8 Qgxg5+ Qg7 Qgxg7+ Rxg7 Bxe6+ Rdf7 Bxf7+
Qxf7 Qbxf7+ Rxf7 Qg2+ Rg7 Qfxg7#
PV: Qxf8+ Kxf8 Qxg8+ Kxg8 Qgxg5+ Qg7 Bxe6+ Rxe6 Qxe6+ Qxe6 Qxe6+ Kh8 Qbh4+ Qh7
Ng6+ Kg7 Nf8+ Qg6 Qgxg6#

EBF is very good this time, and the hash table appears to be very important
for this problem:

#  3      0.02s [  2.00]        1kN [  9.86]  0.94         95-         0
#  4      0.11s [  5.50]        6kN [  6.44]  1.03        729-         0
#  5      0.48s [  4.36]       29kN [  4.57]  1.23       3504-         0
#  6      2.28s [  4.75]      129kN [  4.40]  4.38      15765-         0
#  7      7.41s [  3.25]      413kN [  3.20] 13.02      50036-         0
#  8     21.06s [  2.84]     1195kN [  2.89] 25.65     137982-         0
#  9     78.95s [  3.75]     4625kN [  3.87] 27.37     501489-         0
# 10    258.99s [  3.28]    16220kN [  3.51] 24.70    1453974-         3

Cheers,
Heiner



This page took 0 seconds to execute

Last modified: Thu, 15 Apr 21 08:11:13 -0700

Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.