Author: Matthias Gemuh
Date: 13:50:19 07/23/03
Go up one level in this thread
On July 23, 2003 at 15:24:18, Matthew White wrote: >[D]8/5p1k/6pp/8/q2QB3/2K4P/1p3P2/8 b - - 0 45 > >From Levin (2331) - IM Donaldson, Western States Open 2003 (analysis) >The move actually played was 45... Qa1? 46. Bxg6+!! and draw by perpetual check >Can your engine find the winning 45... b1=N+!! 46. Bxb1 Qa1+ and black enters >the endgame a pawn up > >Every engine that I have tested finds it eventually. However, some do take >longer than others :). > >Matt BigLion 2.0 needs a long time (13 seconds) [1] (-0.29) 1 ...Qa1 (00h:00m:00s) [2] (-0.79) 1 ...Qa1 2.Kc4 (00h:00m:00s) [3] (-0.87) 1 ...Qa1 2.Kc4 Qc1 3.Kb4 (00h:00m:00s) [4] (-0.87) 1 ...Qa1 2.Kc4 Qc1 3.Kb4 b1=Q 4.Bxb1 (00h:00m:00s) [5] (-0.79) 1 ...Qa1 2.Kc4 b1=Q 3.Bxb1 Qxb1 (00h:00m:00s) [6] (-0.91) 1 ...Qa1 2.Kc4 Qc1 3.Kd5 b1=Q 4.Bxb1 Qxb1 (00h:00m:01s) [7] (-0.99) 1 ...Qa1 2.Kc4 b1=Q 3.Bxb1 Qxb1 4.h4 Kg8 (00h:00m:05s) [8] (-1.36) 1 ...b1=N 2.Bxb1 Qa1 3.Kc4 Qxb1 4.h4 h5 5.f4 Qc2 6.Kb4 (00h:00m:13s) [9] (-1.35) 1 ...b1=N 2.Bxb1 Qa1 3.Kc4 Qxb1 4.h4 Qc2 5.Kb5 Qf5 6.Kc6 Qe6 7.Kb7 f6 (00h:00m:33s)
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.