Stockfish 16040820a_AlainSavard - nowa kompilacja silnika szachowego
Poprzednie wersje Stockfish
Autor kompilacji - Alain Savard
Informacje o wersji:
Timestamp: 1460139175
Backward simplication
On top of the usual conditions
a) some opponent in front (but no lever)
b) some neighbours (in front) (but no neighbour behind or same rank)
c) < rank_5
to find out if a pawn is backward we look at the squares in front of this pawn to reach the same rank as the next neighbour.
In current master, a pawn is backward if any of those squares is controlled by an enemy pawn on an adjacent file
In this version, a pawn is ALSO backward if any of those squares is occupied by an enemy pawn.
STC:
http://tests.stockfishchess.org/tests/view/56fe7efd0ebc59301a3541f1
LLR: 2.95 (-2.94,2.94) [-3.00,1.00]
Total: 19051 W: 3557 L: 3433 D: 12061
LTC:
http://tests.stockfishchess.org/tests/view/56febc2d0ebc59301a354209
LLR: 2.95 (-2.94,2.94) [-3.00,1.00]
Total: 40810 W: 5619 L: 5526 D: 29665
Bench: 7525245
Resolves #614
JCER=3247
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