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Subject: Re: One mate to solve.

Author: Heiner Marxen

Date: 11:30:39 04/27/02

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On April 27, 2002 at 06:39:33, leonid wrote:

>[D]n6Q/P1NqRR1q/r6Q/rqkbBPbP/Q6q/n1qPqQ1P/N6K/q1q2q1B w - -
>
>Please indicate your result.
>
>Thanks,
>Leonid.

After only 3.3 minutes on my old K7/600 (filling only 32 MB of the available
350 MB hash), Chest mumbles "mate in 9":

PV: Nxa6+ Qxa6 Qxd5+ Qxd5 Qb6+ Kxb6 Qb8+ Qab7 Re6+ Kc5 Bd6+ Kb6 Bb4+ Qd6+ Qxd6+
Qbc6 Qxa5#
PV: Qxd5+ Qxd5 Nxa6+ Qxa6 Qb6+ Kxb6 Qb8+ Qab7 Re6+ Kc5 Bd6+ Kb6 Bb4+ Qd6+ Qxd6+
Qbc6 Qxa5#

The diminuishing EBF shows, that white has only a very small path leading to
the mate...

#  4      0.17s [  8.50]       10kN [  8.12]  1.11        491-         0
#  5      0.89s [  5.24]       55kN [  5.53]  1.51       2509-         0
#  6      5.08s [  5.71]      304kN [  5.51]  2.00      16501-         0
#  7     18.52s [  3.65]     1084kN [  3.56]  3.05      65379-         0
#  8     69.90s [  3.77]     4135kN [  3.82]  4.36     265731-         0
#  9    199.84s [  2.86]    11913kN [  2.88]  6.04     788592-         0

As always, CM (and others) will be much faster ;-)

Cheers,
Heiner



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