Dev Builds » 20140126-0923

Use this dev build

NCM plays each Stockfish dev build 20,000 times against Stockfish 15. 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 074c7a3c30dce46b65bc7deb15619a6a33ecf4a8
Author Stefan Geschwentner
Date 2014-01-26 09:23:31 UTC
Variable null-move value based reduction Instead of a fixed reduction of ONE_PLY, now Null move dynamic reduction based on value can grow larger in case we are above beta of a value much higher then PawnValueMg. Note that now an eval returning VALUE_KNOWN_WIN makes null search to drop in qsearch. Passed both short TC: LLR: 2.95 (-2.94,2.94) [-1.50,4.50] Total: 26141 W: 4871 L: 4699 D: 16571 And long TC: LLR: 2.97 (-2.94,2.94) [0.00,6.00] Total: 33695 W: 5309 L: 5056 D: 23330 bench: 7356053
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