Dev Builds » 20131020-0804

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 67f91bc5eaed821f35f09c9490a80200e1ab6951
Author Marco Costalba
Date 2013-10-20 08:04:43 UTC
Revert "Further increase safe checks bonus" This reverts commit 4bc2374450e30101392 for two reasons. First regression testing shows almost equal score: Before the patch: ELO: 49.75 +-2.5 (95%) LOS: 100.0% Total: 27205 W: 7113 L: 3244 D: 16848 After the patch: ELO: 48.87 +-2.9 (95%) LOS: 100.0% Total: 20860 W: 5478 L: 2563 D: 12819 Second, and more sensible to me, this patch increases safe check bonuses to 4 times their original value (!) and considering: - Values were already well tuned - Values are highly critical - King safety is highly critical, very TC dependent and very difficult to test - Our testing coverage is partial (self-testing, blitz times) I think is better to be safe than sorry and so I revert the patch. bench: 8440524
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