Author: Heiner Marxen
Date: 19:39:52 07/25/01
Go up one level in this thread
On July 25, 2001 at 15:12:21, leonid wrote: >On July 25, 2001 at 14:02:16, Heiner Marxen wrote: > >>On July 25, 2001 at 11:12:54, leonid wrote: >> >>>Hi! >>> >>>If you are in the mood to solve one mate, try this: >>> >>>[D]kr1rBR2/bn1qQbN1/q2QqQ2/2nqQqB1/3QqQ2/3qQqN1/3QqQ2/4R1K1 w - - >>> >>>Please indicate your result. >>> >>>Thanks, >>>Leonid. >> >>Hi Loenid, >> >>One of the 10 white queens surely is meant to be a king, but which one? >> >>Cheers, >>Heiner > >Thanks, Heiner for indicate my mistake! This time will try to look well into >position after its deposition. > >Cheers, >Leonid. Hi again, Chest says this is a mate in 12, so it is not exactly easy for Chest. But since black has considerably counter measures, the effective branching factor is quite moderate. Chest needs 5 hours to complete its analysis: PV: Qxb8+ Rxb8 Qxb8+ Bxb8 Qxb8+ Kxb8 Bxd7+ Be8 Rxe8+ Ka7 Qexc5+ Qxc5 Qxc5+ Qxc5 Qxc5+ Nxc5 Qxc5+ Qab6 Qa5+ Qa6 Qcxb6+ Qxb6+ Qfxb6# depth time EBF[T] EBF[N] # 1 0.00s 0kN 0.87 1- 0 # 2 0.00s 0kN 1.00 1- 0 # 3 0.01s 0kN [ 6.20] 0.93 80- 0 # 4 0.07s [ 7.00] 2kN [ 4.57] 1.07 339- 0 # 5 0.24s [ 3.43] 9kN [ 4.04] 1.31 1341- 0 # 6 1.19s [ 4.96] 45kN [ 4.85] 1.57 6240- 0 # 7 4.34s [ 3.65] 171kN [ 3.84] 1.88 24208- 0 # 8 18.54s [ 4.27] 753kN [ 4.41] 2.25 108884- 0 # 9 88.51s [ 4.77] 3772kN [ 5.01] 2.63 538579- 0 # 10 427.96s [ 4.84] 18772kN [ 4.98] 3.14 2625882- 312 # 11 2131.48s [ 4.98] 94378kN [ 5.03] 3.63 12931582- 4264574 # 12 17041.89s [ 8.00] 799505kN [ 8.47] 3.38 103238047- 94490146 Cheers, Heiner
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