cats and dogs
Submitted by
leo8160 on Sun, 07/26/2009 at 4:51am.
i thought to write about this subject based on a discussion made today about the values of knights and bishops...i took it from Hans Berliner famous book THE SYSTEM (diff from my system of Nymzowisch)
Berliner says:
"in any basic book on chess you will find the values of the pieces as follows
pawn 1 knight 3 bishop 3 rook 5 queen 9
this is convinient in teaching a beginner, but lacks the kind of precission needed to make meaningfull decision...for example from the table we compute that a queen worth 3 minor pieces but grandmaster experience has shown that 3 minor pieces are almost always much superior to a queen. further more 2 minor pieces plus 2 pawns are almost always a good compensation for a queen....one must understand how to make decisions such as these in order to play high level of chess"
Berliner suggested the following table instead:
pawn 1.0 knight 3.2 bishop 3.33 rook 5.1 queen 8.8
he says " you really dont need to memorize the numbers , but u should be able to evaluate that 3 minor pieces are about equal to a queen + 1 pawn.....also 2 rooks are better than a queen + 1 pawn
however , circumstances can alter evaluations , according to pawn structure ...the straight line pieces gain up to 10% in value in wide open positions and lose around 20% in blocked positions...the knight can gain up to 50% in value in blocked positions and lose 30% in the corners and on edges
chess positions may be classified as ranging from wide-open,to open,to average, to closed, to blocked"
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