Stockfish 2024071906 NNUE for Windows and Linux, interesting compilation by Michael Chaly (progress +2,59)

Stockfish 2024071906 - UCI chess engine, compiled by Michael Chaly

Rating Chess Engines Diary CEDR=3766

Stockfish 2024071906 Michael Chaly (all versions) download

Timestamp: 1721371298

Adjust bonus to move that caused a fail low

This is an elo gainer and simultaneously a minor logical fix to bonuses that caused a fail low.

It increases maximum of statscore based subtraction - but disallows negative bonuses.

Passed STC:

https://tests.stockfishchess.org/tests/view/66955e6f4ff211be9d4ec063

LLR: 2.94 (-2.94,2.94) <0.00,2.00>

Total: 44640 W: 11805 L: 11472 D: 21363 Elo +2.59

Ptnml(0-2): 166, 5178, 11335, 5439, 202

Passed LTC:

https://tests.stockfishchess.org/tests/view/66963fde4ff211be9d4ec190

LLR: 2.95 (-2.94,2.94) <0.50,2.50>

Total: 72288 W: 18478 L: 18082 D: 35728 Elo +1.90

Ptnml(0-2): 50, 7919, 19825, 8285, 65

closes https://github.com/official-stockfish/Stockfish/pull/5494

Bench: 1477054

Stockfish 20240521 - results: