Dev Builds » 20190101-1235

Use this dev build

NCM plays each Stockfish dev build 20,000 times against Stockfish 14. This yields an approximate Elo difference and establishes confidence in the strength of the dev builds.


Host Duration Avg Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN


Commit ID e2d3c163cbdd98de6f0399db358be964d014d313
Author protonspring
Date 2019-01-01 12:35:53 UTC
Remove as useless micro-optimization in pawns generation (#1915) The extra condition is used as a shortcut to skip the following 3 assignments: ```C++ Bitboard b1 = shift<UpRight>(pawnsOn7) & enemies; Bitboard b2 = shift<UpLeft >(pawnsOn7) & enemies; Bitboard b3 = shift<Up >(pawnsOn7) & emptySquares; ``` In case of EVASION with no target on 8th rank (the common case), we end up performing the 3 statements for nothing because b1 = b2 = b3 = 0. But this is just a small micro-optimization and the condition is quite confusing, so just remove it and prefer a readable code instead. STC LLR: 2.95 (-2.94,2.94) [-3.00,1.00] Total: 78020 W: 16978 L: 16967 D: 44075 No functional change.
Copyright 2011–2024 Next Chess Move LLC