Author: blass uri
Date: 08:40:46 10/01/98
Go up one level in this thread
On October 01, 1998 at 08:21:43, Robert Hyatt wrote: >On October 01, 1998 at 01:11:12, blass uri wrote: > >> >> >> >>8/1r5p/6p1/8/P2k4/K6P/1R4P1/8 black to move >> >>Many programs are playing Rxb2 because they computes that white is losing its >>pawn in the pawn endgame and do not understand that after Rxb2 Kxb2 Kc4 Kc2 Kb4 >>Kd3 Kxa4 white is winning. >> >>Rxb2 is not the first move they want to play because they need time to see that >>black wins a pawn by this stupid mistake after Rxb2 Kxb2 Kc4 Ka3 >> >>Is there a program that understand by static evaluation that white is winning >>with the king at d3?(static evaluation at least 1.5 pawn advantage for white) >> >>Uri > >I get this: > > +---+---+---+---+---+---+---+---+ > 8 | | | | | | | | | > +---+---+---+---+---+---+---+---+ > 7 | | *R| | | | | | *P| > +---+---+---+---+---+---+---+---+ > 6 | | | | | | | *P| | > +---+---+---+---+---+---+---+---+ > 5 | | | | | | | | | > +---+---+---+---+---+---+---+---+ > 4 | P | | | *K| | | | | > +---+---+---+---+---+---+---+---+ > 3 | K | | | | | | | P | > +---+---+---+---+---+---+---+---+ > 2 | | R | | | | | P | | > +---+---+---+---+---+---+---+---+ > 1 | | | | | | | | | > +---+---+---+---+---+---+---+---+ > a b c d e f g h > >Black(1): sc >end-game phase > clearing hash tables >note: scores are for the white side >material evaluation................. 1.00 >development......................... 0.00 >pawn evaluation..................... 0.12 >passed pawn evaluation.............. 0.24 >passed pawn race evaluation......... 0.00 >interactive piece evaluation........ -0.23 >total evaluation.................... 1.13 I did not ask about the static evaluation of the originial position but about the static evaluation of the position after the line Rxb2 Kxb2 Kc4 Kc2 Kb4 kd3 kxa4 > > > >when I do a search, I never get "rxb2" as reasonable: programs get Rxb2 as reasonable because of the following line Rxb2 Kxb2 Kc4 Ka3 g5 g3 h5 g4 h4 Kb2 Kb4 kc2 kxa4 they need time to find this line(more than 1 or 2 seconds). white also can win this pawn ending but programs do not understand this. Uri
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