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.
| Host | Duration | Avg Base NPS | Games | WLD | Standard Elo | Ptnml(0-2) | Gamepair Elo | 
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| ID | Host | Base NPS | Games | WLD | Standard Elo | Ptnml(0-2) | Gamepair Elo | CLI | PGN | 
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| Commit ID | fc54d8730174cdb5cfc4f7074b90128e706e4040 | 
|---|---|
| Author | Syine Mineta | 
| Date | 2025-09-13 06:18:52 UTC | 
| Revert "Adjustment of the aspiration window after fail high/low."
This reverts commit bfc7000597b8b5b0899e99bc911f6120a75c6297.
Fixes https://github.com/official-stockfish/Stockfish/issues/6296
After this commit a bug has been reported when the position is close to
mate or being mated. Since no workarounds have been suggested yet, it
is best to revert this commit until a better solution is found.
closes https://github.com/official-stockfish/Stockfish/pull/6309
Bench: 2493363 | |