From 2b9154882a0e924c28d4de7b98309d889334428c Mon Sep 17 00:00:00 2001
From: Linmiao Xu <linmiao.xu@gmail.com>
Date: Mon, 16 Sep 2024 01:49:04 -0400
Subject: [PATCH] Tweak 7 eval params

Values found from 120k / 120k spsa games at 30+0.3

Passed STC:
https://tests.stockfishchess.org/tests/view/66ecd7ce86d5ee47d953b003
LLR: 2.93 (-2.94,2.94) <0.00,2.00>
Total: 241312 W: 62994 L: 62373 D: 115945
Ptnml(0-2): 754, 28684, 61280, 29063, 875

Passed LTC:
https://tests.stockfishchess.org/tests/view/66f1f3a286d5ee47d953b331
LLR: 2.94 (-2.94,2.94) <0.50,2.50>
Total: 304896 W: 77580 L: 76709 D: 150607
Ptnml(0-2): 198, 33413, 84360, 34274, 203

closes https://github.com/official-stockfish/Stockfish/pull/5611

bench 1173651
---
 src/evaluate.cpp | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/evaluate.cpp b/src/evaluate.cpp
index 221ccde8b8b..087765e36cb 100644
--- a/src/evaluate.cpp
+++ b/src/evaluate.cpp
@@ -77,11 +77,11 @@ Value Eval::evaluate(const Eval::NNUE::Networks&    networks,
 
     // Blend optimism and eval with nnue complexity
     int nnueComplexity = std::abs(psqt - positional);
-    optimism += optimism * nnueComplexity / (smallNet ? 433 : 453);
-    nnue -= nnue * nnueComplexity / (smallNet ? 18815 : 17864);
+    optimism += optimism * nnueComplexity / (smallNet ? 430 : 474);
+    nnue -= nnue * nnueComplexity / (smallNet ? 20233 : 17879);
 
     int material = (smallNet ? 553 : 532) * pos.count<PAWN>() + pos.non_pawn_material();
-    v = (nnue * (73921 + material) + optimism * (8112 + material)) / (smallNet ? 68104 : 74715);
+    v = (nnue * (76898 + material) + optimism * (8112 + material)) / (smallNet ? 74411 : 76256);
 
     // Evaluation grain (to get more alpha-beta cuts) with randomization (for robustness)
     v = (v / 16) * 16 - 1 + (pos.key() & 0x2);