Dev Builds » 20260101-1451

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 e0fb783c30f86d9ff01328b14fefded21492677e
Author Joost VandeVondele
Date 2026-01-01 14:51:09 UTC
Fix incorrect initialization Fixes https://github.com/official-stockfish/Stockfish/issues/6505 Missing initialization seemingly resulting in side effects, as discussed in the issue. Credit to Sopel for spotting the bug. PR used as a testcase for CoPilot, doing the right thing https://github.com/official-stockfish/Stockfish/pull/6478#discussion_r2655467218 closes https://github.com/official-stockfish/Stockfish/pull/6511 No functional change
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