Dev Builds » 20200928-1455

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 36c2886302ff3f6b730fc5f69d738a5d61be8c46
Author Joost VandeVondele
Date 2020-09-28 14:55:40 UTC
Update default net to nn-04a843f8932e.nnue an optimization of Sergio's nn-03744f8d56d8.nnue tuning the output layer (33 parameters) on game play. WIP code to make layer parameters tunable is https://github.com/vondele/Stockfish/tree/optionOutput Optimization itself is using https://github.com/vondele/nevergrad4sf Writing of the modified net using WIP code based on the learner code https://github.com/vondele/Stockfish/tree/evalWrite Most parameters in the output layer are changed only little (~5 for int8_t). passed STC: https://tests.stockfishchess.org/tests/view/5f716f6b3b22d6afa506941a LLR: 2.94 (-2.94,2.94) {-0.25,1.25} Total: 15488 W: 1859 L: 1689 D: 11940 Ptnml(0-2): 79, 1260, 4917, 1388, 100 passed LTC: https://tests.stockfishchess.org/tests/view/5f71908e3b22d6afa506942e LLR: 2.93 (-2.94,2.94) {0.25,1.25} Total: 8728 W: 518 L: 400 D: 7810 Ptnml(0-2): 7, 338, 3556, 456, 7 closes https://github.com/official-stockfish/Stockfish/pull/3158 Bench: 3789924
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