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Chess engine: Stockfish 22012210 NNUE (Windows and Linux)

on


Stockfish - UCI chess engine, compiled by J. Oster
Rating CEDR=3533 (1 place)

Timestamp: 1642844904
Simplify limiting extensions.

Replace the current method for limiting extensions to avoid search getting stuck
with a much simpler method.
the test position in https://github.com/official-stockfish/Stockfish/commit/73018a03375b4b72ee482eb5a4a2152d7e4f0aac
can still be searched without stuck search.

fixes #3815 where the search now makes progress with rootDepth
shows robust behavior in a d10 search for 1M positions.

passed STC
https://tests.stockfishchess.org/tests/view/61e303e3babab931824dfb18
LLR: 2.94 (-2.94,2.94) <-2.25,0.25>
Total: 57568 W: 15449 L: 15327 D: 26792 Elo +0.74
Ptnml(0-2): 243, 6211, 15779, 6283, 268

passed LTC
https://tests.stockfishchess.org/tests/view/61e3586cbabab931824e091c
LLR: 2.96 (-2.94,2.94) <-2.25,0.25>
Total: 128200 W: 34632 L: 34613 D: 58955 Elo +0.05
Ptnml(0-2): 124, 12559, 38710, 12588, 119
closes https://github.com/official-stockfish/Stockfish/pull/3899
Bench: 4550528

Stockfish 22012210 NNUE download

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