Author: Robert Hyatt
Date: 09:25:05 05/08/01
Go up one level in this thread
On May 07, 2001 at 14:47:23, Joshua Lee wrote: > >>>2 Rooks are better the less material on the board. They are worse if there >>>aren't open files they can be used on. >>>The Knight is 3 but if you get to a position even in the endgame where it is >>>better than the Bishop it's Value should increase and the Bishop's Decrease. >>>the Bishop is Worth 3 and a quarter 3.25 or 3250 >>>But obviously not if all pawns are on it's squares and then if all your pawns >>>are on your opponents squares you end up having a bit of a problem so this would >>>tell me (I have yet to write a chess program) That in order to improve past >> >>your engine will lose all endgames if the above gets implemented! >>bishop nearly always beats a knight! >> >>however you'll never >>reach it as rook + pawn > 2 pieces according to above definition. >> >>Remember, pawn structure delivers loads of bonuses/penalties for >>pawn. Usually after giving up 2 pieces for rook+pawn the side left >>with the rook and pawn has a passer extra, so that delivers again >>positional bonuses. >> >>Get the picture slowly? >> >>>what >>>any other programers have done so far, you need a Dynamic/static eval and you >>>need your software to know the difference and to be able to be elastic and to >>>decide when and if to change parameters. > > >I am speaking of the few cases that the knight is better but that argument is >not relevent, I said the program needs to be able to decide which paraqmeters to >use so as to know when it should keep the knight or lose the bishop trade this >pawn not that etc. I am sure with a variable eval whoever implements it first >will probably be loosing the least. As far as the Rook + Pawn goes you may want >to consider Taking the two Pieces for it as Two pieces can fight against a Rook. >At least that's what i was taught. First, the difference between a bishop and knight is not hard to detect. If the bishop is very mobile, and pawns are on both sides of the board, it is better. If either of those is false, then the knight is probably better. I certainly do this in my evaluation. As far as RP trade for two minors, the two minors will almost always win. Same for a piece for 3 pawns... The piece will almost always win unless it is a simple endgame.
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