From: Linmiao Xu <linmiao.xu@gmail.com>
Date: Fri, 7 Apr 2023 16:33:28 +0000 (-0400)
Subject: Simplify away nnue scale pawn count multiplier
X-Git-Url: https://git.sesse.net/?a=commitdiff_plain;h=7bd23d4d04d6644b6ccae8ea63cfc6646e4248dd;hp=7bd23d4d04d6644b6ccae8ea63cfc6646e4248dd;p=stockfish

Simplify away nnue scale pawn count multiplier

Removes 2x multipliers in nnue scale calculation along with the pawn count term that was recently reintroduced.

Passed non-regression STC:
https://tests.stockfishchess.org/tests/view/64305bc720eb941419bdf72e
LLR: 2.95 (-2.94,2.94) <-1.75,0.25>
Total: 38008 W: 10234 L: 10021 D: 17753
Ptnml(0-2): 96, 4151, 10323, 4312, 122

Passed non-regression LTC:
https://tests.stockfishchess.org/tests/view/6430b76a028b029b01ac9bfd
LLR: 2.94 (-2.94,2.94) <-1.75,0.25>
Total: 91232 W: 24686 L: 24547 D: 41999
Ptnml(0-2): 30, 8721, 27986, 8838, 41

closes https://github.com/official-stockfish/Stockfish/pull/4510

bench 4017320
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