Dev Builds » 20121105-0641

You are viewing an old NCM Stockfish dev build test. You may find the most recent dev build tests using Stockfish 15 as the baseline here.

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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 a5b1f4774f44e29ad32a93b524ad43fa2d790e1a
Author Marco Costalba
Date 2012-11-05 06:41:28 UTC
Temporary revert previous patch Performs well at very short TC of 40/4+0.05 (courtesy of Jean-Francois): Wins: 2503 Losses: 2146 Draws: 5581 Total: 10230 +12 ELO But is poor at longer TC of 20"+0.05 Wins: 321 Losses: 373 Draws: 1141 Total: 1808 -10 ELO The patch was clearly a tradoff between speed and accuracy and the most interesting part of it are test results that can be commented as follows: - A short TC is very sensible to any speed increase - A longer TC is more sensible to accuracy and less to speed So a patch that does not change speed is suitable to be tested at short TC, while a speed/accuracy compromise patch is IMO better to be tested at longer TC to verify loss of accuracy can be tolerated. In this case the revert is only temporary. We will come back again once we will be able to preserve the evaluation margin. bench: 5809010
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