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 | 4436524a3e6f37b68d0f23683681b249a4edcf52 |
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| Author | Timothy Herchen |
| Date | 2026-07-06 09:31:28 UTC |
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add rbit fallback
GCC 12.2 added `__rbitll` intrinsic to `arm_acle.h`, so we can add a fallback for older versions
Clang 10 (our new minimum supported version) is unaffected by all this
closes https://github.com/official-stockfish/Stockfish/pull/6949
No functional change
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