Author: Vincent Lejeune
Date: 08:18:35 03/27/05
Go up one level in this thread
On March 27, 2005 at 10:24:52, Mike Byrne wrote: >On March 27, 2005 at 06:56:35, Vincent Lejeune wrote: > >>On March 26, 2005 at 21:30:04, Robert Hyatt wrote: >> >>>On March 26, 2005 at 19:46:58, Vincent Lejeune wrote: >>> >>>>On March 26, 2005 at 15:34:45, Dieter Buerssner wrote: >>>> >>>>>On March 26, 2005 at 15:29:42, Dieter Buerssner wrote: >>>>> >>>>>>On March 26, 2005 at 15:20:17, Mike Byrne wrote: >>>>>> >>>>>>>after the main line : Kf2 f5 h3 Kc7 g3 hxg3 is winning no? >>>>>>> >>>>>>>Black(2): his >>>>>>> white black >>>>>>> 1 Kf2 f5 >>>>>>> 2 h3 Kc7 >>>>>>> 3 g3 ... >>>>>>> 17 25.52 -7.17 3. ... hxg3+ 4. Kxg3 f4+ 5. Kg4 b6 >>>>>>> 6. h4 f3 7. Kxf3 gxh4 8. c6 Kxc6 9. >>>>>>> Kg4 b5 10. a5 b4 11. Kxh4 Kb5 12. Kg4 >>>>>>> >>>>>> >>>>>>In this line, Yace says 8. c6? is losing, while 8.cxb6 is draw. >>>>> >>>>>It is such an obvious blunder, that it looks like a bug in Crafty. >>>>> >>>>>Regards, >>>>>Dieter >>>> >>>> >>>>Probably a bug in the static eval of the pawn endgame. after 3 min@3 Ghz : >>> >>>I can't reproduce Mikes PV with this "c6 bug"... I don't get c6 at any point >>>that I can see, it always takes... >>> >>>Any ideas? >> >> >>I succeded to replicate c6 as best move : >>1) without any EGTB >>2) starting with this position 8/1p1k4/5p2/2Pp2p1/P2P3p/8/6PP/6K1 w - - 0 1 >>3) under chessbase interface >>4) played 1. Kf2 f5 2. h3 Kc7 3. g3 hxg3+ 4. Kxg3 with 5 between each move >>5) the score is rising for white but it so long I stopped >>Is it a problem related to only pawns endgame eval or linked to hashtables too ? >> > >I suggest not to test under Chessbase GUI unless you are using the native >chessbase crafty engine. I use the native chessbase crafty engine.
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