Indeterminate starting chess positions

General discussion about computer chess...

Indeterminate starting chess positions

Postby Programmist » Thu Aug 31, 2017 4:30 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

Initial position name EtaAlfa-

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

Score 4-5

Advanced game with long time control
genadiy-Daiver 0-1

Initial position name BetaZeta+

bnrkqrnb/pppppppp/8/8/8/8/PPPPPPPP/RKBNNBQR w - - 0 1
Score 2-2

Advanced game with long time control
genadiy-burcontovk 1-0

Initial position name GammaZeta+

bnrkqrnb/pppppppp/8/8/8/8/PPPPPPPP/RKNBBNQR w - - 0 1
Score 1-3

Advanced game with long time control
genadiy-Programmist 0-1

Initial position name BetaZeta-

bnrqkrnb/pppppppp/8/8/8/8/PPPPPPPP/RKBNNBQR w - - 0 1
Score 2-4

Advanced game with long time control
Daiver-concord 1-0

Initial position name GammaZeta-

bnrqkrnb/pppppppp/8/8/8/8/PPPPPPPP/RKNBBNQR w - - 0 1
Score 3-2

Advanced game with long time control
Daiver-Programmist 1-0

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