Dev Builds » 20140621-1107

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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 e8baf2b772ba8b5eacccd2a64f33faa3b0efa7a8
Author Marco Costalba
Date 2014-06-21 11:07:29 UTC
Ensure ttValue != VALUE_NONE in singular extension search The assert: assert(ttValue != VALUE_NONE); Could fire for multiple reasons (although is very rare), for instance after an IID we can have ttMove != MOVE_NONE while ttValue is still set at VALUE_NONE. But not only this, actually SMP is a source of corrupted ttValue and anyhow we can detect the condition: ttMove != MOVE_NONE && ttValue == VALUE_NONE even north of IID. Reported by Ronald de Man. It is so rare that bench didn't change. bench: 7710548
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