Indeterminate starting chess positions

General discussion about computer chess...

Indeterminate starting chess positions

Postby Programmist » Thu Aug 31, 2017 4:36 pm

In the general opinion of many chess analysts, classic chess starting position is drawish with a large margin, moreover, results of high level correspondence chess tournaments prove it. The question arises, does every initial starting position have a clear assessment? And what makes the classic position drawish?

Experimental games and some theory show, that positions with different arrangement of black and white pieces are less definite.

In such positions, one side is often stronger and fights for win, while other side tries to defend. This makes chess game with this starting position a two result game effectively in advanced chess.

Initial position name AlfaDelta-

brnqknrb/pppppppp/8/8/8/8/PPPPPPPP/RKBNQBNR w - - 0 1
Score 3-3 by advanced chess games with long time control


Initial position name EtaAlfa-

rnbqnbkr/pppppppp/8/8/8/8/PPPPPPPP/RNBKNBQR w - - 0 1
(black to win)

Score 4-5 by advanced chess games with long time control


Initial position name BetaZeta+

bnrkqrnb/pppppppp/8/8/8/8/PPPPPPPP/RKBNNBQR w - - 0 1
Score 2-2 by advanced chess games with long time control


Initial position name GammaZeta+

bnrkqrnb/pppppppp/8/8/8/8/PPPPPPPP/RKNBBNQR w - - 0 1
Score 1-3 by advanced chess games with long time control


Initial position name BetaZeta-

bnrqkrnb/pppppppp/8/8/8/8/PPPPPPPP/RKBNNBQR w - - 0 1
Score 2-4 by advanced chess games with long time control


Initial position name GammaZeta-

bnrqkrnb/pppppppp/8/8/8/8/PPPPPPPP/RKNBBNQR w - - 0 1
Score 3-2 by advanced chess games with long time control


Arrangements of white and black pieces were selected among symmetrical ones.
Programmist
 
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