Author: leonid
Date: 06:46:33 02/13/01
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On February 13, 2001 at 08:58:07, Tim Foden wrote: >On February 13, 2001 at 07:52:59, leonid wrote: > >>Hi! >> >>Here is one of my usual forced mate but this time just too easy and short. >>Whites hardly have 100 moves and black is almost helpless. Try to solve it if >>you like. >> >>[D]q3Q3/rPnBq3/1Q1qN3/rq1QqQ2/kr1N1Q1Q/qqQb1R2/3BQ3/rRn1b2K w - - >> >>Please, indicate your result. >> >>Thanks, >>Leonid. > >OK, I'll give it a try even though you say it is easy! :-) > >Green Light v2.13-pr1, 920MHz Duron, 24Mb hash, finds a mate in 7: > > 3 2.52 17.36 411424 Qcxb3+ Nxb3 Qxb3+ Qxb3 Rxa1+ Qa3 Rxa3+ Kxa3 Nxb5+ > Raxb5 > 4 2.86 ++ 518728 Qcxb3+ (a=16.86 b=17.86 e=17.86) > 4 3.38 320.87 918986 Qcxb3+ Nxb3 Qxb3+ Rxb3 Nxb5+ Qab4 Nc3+ Ka3 Bc1+ Rb2 > Qxb2+ Qxb2 Qxb2# <ht> > 4 3.96 320.87 1401563 Qcxb3+ Nxb3 Qxb3+ Rxb3 Nxb5+ Qab4 Nc3+ Ka3 Bc1+ Rb2 > Qxb2+ Qxb2 Qxb2# <ht> > 5 4.62 320.87 2018943 Qcxb3+ Nxb3 Qxb3+ Rxb3 Nxb5+ Qab4 Nc3+ Ka3 Bc1+ Rb2 > Qxb2+ Qxb2 Qxb2# > >It sticks with this until ply 8 where I stopped the analysis. > >Cheers, Tim. Is exact! It is mate in 7. Since selective search was able to solve it in 7 and branching factor was very mild, I looked all position by brute force up to 7. Cheers, Leonid.
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