Author: David Dahlem
Date: 09:30:32 05/17/05
Go up one level in this thread
On May 17, 2005 at 06:25:25, Kurt Utzinger wrote: >On May 16, 2005 at 12:06:13, David Dahlem wrote: > >>In a game against Crafty Cito, in this position ... >> >>[D]5rk1/n1q4p/4brp1/1p2p1Q1/p3B1PN/P2PP3/1R5P/1R4K1 w - - 0 40 >> >>Little Goliath Evolution played Rb2, instantly, without any thinking time. In >>analysis mode, Evolution doesn't show a pv from this position, only the one >>move, Rb2. This looks like some kind of bug. Could someone else try Evolution on >>this position? > > > Hi Dave > No problem here with LG Evolution in this position > on P4 1.8/32 MB hash > Kurt > >Neue Partie, >5rk1/n1q4p/4brp1/1p2p1Q1/p3B1PN/P2PP3/1R5P/1R4K1 w - - 0 1 > >Analysis by Little Goliath Evolution: > >40.d4 exd4 41.Nf5 dxe3 42.Nxe3 > ³ (-0.36) Tiefe: 6/23 00:00:00 37kN > µ (-1.27) Tiefe: 7/23 00:00:00 201kN >40.Nf5 Qc3 41.Nd6 Rf1+ 42.Rxf1 Rxf1+ 43.Kxf1 Qc1+ 44.Kf2 Qxb2+ 45.Ke1 Qxh2 >46.Qd8+ Kg7 > µ (-1.15) Tiefe: 7/23 00:00:00 226kN > µ (-0.89) Tiefe: 7/27 00:00:00 311kN >40.Rb4 Qc2 41.Bxg6 hxg6 42.Nxg6 Qf2+ 43.Kh1 R8f7 44.Nxe5+ Rg7 45.Qh5 Qxe3 >46.Qe8+ Kh7 47.Re4 > µ (-0.80) Tiefe: 7/27 00:00:00 314kN > µ (-0.93) Tiefe: 11/36 00:00:10 11998kN >40.Rg2 Kg7 41.Nf5+ Kh8 42.Ng3 Qd6 43.Ra1 R6f7 > µ (-0.84) Tiefe: 11/36 00:00:14 16795kN > ³ (-0.65) Tiefe: 13/37 00:00:44 45673kN >40.Rb4 Qc2 41.R4b2 Qc3 42.Bxg6 hxg6 43.Nxg6 Rf1+ 44.Rxf1 Rxf1+ 45.Kxf1 Qc1+ >46.Kf2 Qxb2+ 47.Kg3 Qxa3 48.Nxe5+ > ³ (-0.57) Tiefe: 13/37 00:00:55 60160kN > ³ (-0.57) Tiefe: 13/37 00:00:55 60160kN > >(Utzinger, MyTown 17.05.2005) Hi Kurt As Guenther mentioned, the bug appears to be only when using the large book. So far, i haven't seen this bug when using the small book. Here are some more positions where LG Evolution plays stupid moves instantly when using the large book .. rq3rk1/pb2bpp1/4p2p/3nP3/1p2N1Q1/3B4/PP3PPP/R1B2RK1 w - - 0 1 Evolution played Be3?? giving away a pawn. 4rrk1/1p3pbp/p5p1/8/3q2P1/4P3/P3QBPP/1RR3K1 b - - 0 1 Evolution played Ra8?? giving away it's queen. 5rk1/pp3rp1/2nbbq1p/3p1P2/8/P3B3/1PBQN1PP/4RRK1 b - - 0 1 Evolution played Nd8?? losing a bishop. 4rrk1/1p1n1ppp/1qp2n2/p7/PbBP1B2/1QN4P/1P3PP1/2RR2K1 w - - 0 1 Evolution played Qa3?? giving away it's queen. r3rbk1/pppq1p1p/5np1/3pRN2/3P1B2/2PQ3P/PP3PP1/R5K1 w - - 0 1 Evolution played Qd2?? losing a knight. r2k1b1r/1p2pppp/p4n2/1B3b2/1n1P4/2N1B3/PP1K1PPP/R5NR w - - 0 1 Evolution played Ke2?? losing the bishop. r1bq3k/pp2p1bp/3p2p1/3Qnr2/2P2B2/2N4P/PP2BPP1/R4RK1 w - - 0 1 Evolution played Rfc1?? losing the bishop. Regards Dave
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.