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unusual chesspiece values

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zharvey

Hi,

 I'm *very* new to chess but have read that chesspieces take on different values than the "normal" allotments under special circumstances.  By normal values I mean:

Pawn - 1; Bishop - 3, Knight - 3, Rook - 5, Queen - 9

For instance, if the board is fairly wide-open, the bishop assumes a relative (temporary) value of 4. If the board is cluttered, the knight takes on a value of 4.  I have also heard that pawns change value when they are at the 7th rank, right before promotion, and that the values of rooks and kings can change as well.

 Does anybody know *all* the different "exceptions to the rule" for each piece, and what the different point-values are for each case? Thanks, zharvey


Ruinfeld
I'm in agreement with HotFlow... In addition, some people has their own personal value regarding chess piece, no matter what the positions are. The most common circumstance for this is the value of a Knight and a Bishop. There are people who prefer the Knight in every position, even in an open game, and vice versa.
likesforests

Pawn - 1; Bishop - 3, Knight - 3, Rook - 5, Queen - 9

 

A more advanced material evaluation is: Pawn - 1; Bishop - 3.25; Knight - 3.25, Rook - 5, Queen - 9.75, and if you have both bishops give yourself a +0.50 bonus. These material evaluations are well-known and based on a statistical analysis of millions of chess games. 

 

pawns change value when they are at the 7th rank, right before promotion

 

If your pawn promotes, it's worth a queen. So if your pawn is unstoppable, even if it's way back on the 5th rank, it's worth a queen. If your pawn can be easily captured at no cost to your opponet it's worthless. I think this rule that pawns are worth a pawn until they reach the 7th rank and then magically increase in value is not worth remembering.

 

Here's a position from a game I played today. Black's b4- and d4-pawns together are worth a rook, because that's what it will cost White to stop them.




likesforests

Does anybody know *all* the different "exceptions to the rule" for each piece, and what the different point-values are for each case? Thanks, zharvey

 

No, but each game we play our personal evaluation functions become stronger. Smile