Author: blass uri
Date: 08:35:34 01/14/99
Go up one level in this thread
On January 14, 1999 at 10:44:31, Laurence Chen wrote: >On January 14, 1999 at 10:12:44, blass uri wrote: > >> >>On January 14, 1999 at 08:49:37, James T. Walker wrote: >> >>>On January 14, 1999 at 07:36:07, blass uri wrote: >>> >>>> >>>>5rk1/1B6/4p1pp/2b3p1/3qP3/6P1/1P2QPP1/5RK1 w - - 0 1 >>>> >>>>This is a position from the game Junior5-FM Boris Mariasin(The result was draw) >>>> >>>>Junior5 and other programs evaluating it as an advantage fo white because they >>>>do not know to count Attackers-Defenders >>>> >>>>Is there a progam with a more realistic evaluation (small advantage for black or >>>>at least less than 0.2 pawn for white)? >>>> >>>>Uri >>>Hello Uri, >>>I'm a very bad chess player so I don't understand what is happening in this >>>position. I see that white is up a pawn which is about a point. So where is >>>the advantage for black? >> >>The advantage of black is that the black pieces attack f2 and all the white >>pieces must defend f2. >> >>White has no plan to do a progress in the position when black can play h5,g4,h4 >>with an attack. >> >>I am not saying that black is winning but the evaluation should be at least >>equality. >> >>The problem of computers is that they do not count attacker-defemsors of f2 and >>cannot understand that the fact that white is passive give black at least >>equality >> >>Uri >Uri can you prove this position is equal? Really, you are saying that because of >the opposite color bishops in the position. Yet, let me ask you then, what can >Black do? Black is down a pawn, and White has a passed pawn on the Queenside, >that is why the +1.xx evaluation. So the position is not equal, the assessment >is correct, because White can break the pin of f2 easily, and if Black attempts >to advance the Kingside pawns, it gets in big trouble, it exposes the King to >White pieces. White cannot break the pin easily The game was drawn after 26.Ba6 Kg7 27.Bb5 h5 28.Bc4 e5 29.b3 g4 30.Bd5 h4 31.Kh2 Qc3 32.f3 gxf3 33.gxf3 hxg3+ 34.Kxg3 Be3 35.Rh1 Bf4+ 36.Kg2 Rc8 37.Qf2 Be3 38.Qa2 Qc2+ 39.Qxc2 Rxc2+ 40.Kh3 Bf4 41.Bc4 and the sides agree to a draw. What white could do? The only plan for white to get out of the pin is g4 g3,Kg2 but this weakens the white king. After g4 Junior wants to play Rb8 and black gets the pawn back. Uri
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