Dev Builds » 20250224-1801

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 e9997afb1cb046ed1812974f27c532f6e4d8dbcc
Author Carlos Esparza
Date 2025-02-24 18:01:23 UTC
Replace hint_common_parent_position() by backwards accumulator updates Only calls to `evaluate()` now trigger NNUE accumulator updates. To make sure that we are likely to find parent positions from which to update the accumulators we perform a backwards NNUE update whenever we compute the accumulator from scratch for some position. passed STC LLR: 2.93 (-2.94,2.94) <0.00,2.00> Total: 39680 W: 10474 L: 10164 D: 19042 Ptnml(0-2): 171, 4068, 11042, 4398, 161 https://tests.stockfishchess.org/tests/view/67a27f26eb183d11c65945be passed LTC LLR: 2.94 (-2.94,2.94) <0.50,2.50> Total: 337308 W: 86408 L: 85550 D: 165350 Ptnml(0-2): 276, 30551, 106126, 31441, 260 https://tests.stockfishchess.org/tests/view/67a287efeb183d11c65945ee then simplified: STC LLR: 2.94 (-2.94,2.94) <-1.75,0.25> Total: 28608 W: 7641 L: 7413 D: 13554 Ptnml(0-2): 132, 3036, 7744, 3256, 136 https://tests.stockfishchess.org/tests/view/67a4703719f522d3866d3345 LTC LLR: 2.96 (-2.94,2.94) <-1.75,0.25> Total: 200226 W: 51026 L: 50990 D: 98210 Ptnml(0-2): 170, 18468, 62799, 18508, 168 https://tests.stockfishchess.org/tests/view/67a4f255229c1a170cc08964 The version in this PR is a bit different from the simplified version, but it's compile-time changes only. closes https://github.com/official-stockfish/Stockfish/pull/5870 No functional change
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