Dev Builds » 20140208-1207

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.

Summary

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

Commit ID 0a1092f64eb9eb232094036086fc5c98ed1f3c46
Author Marco Costalba
Date 2014-02-08 12:07:57 UTC
Don't fear races when are harmless Actually race conditions do exist in an engine, just think for a moment to TT concurrent access. Racy code is not a problem per se, if the consequences are well known and correctly handled. In case of TT access we ensure that the TT move is validated before to be tried, here we just retry the same move in less that 1 case out of a million: this is totally harmless considering that very probably the second time the move is tried we get immediately a TT hit and search quickly returns. So we simplify the code for no harm. No fuctional change (in single thread case)
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