Simplify nnueComplexity calculation.

[stockfish] / src / evaluate.cpp

diff --git a/src/evaluate.cpp b/src/evaluate.cpp
index 6d5a8a0ce158ad5ab0b55b04bef349b9024832b7..080d412b7d968838c20bf803816834202fcca831 100644 (file)
--- a/src/evaluate.cpp
+++ b/src/evaluate.cpp
@@ -1072,8 +1072,7 @@ Value Eval::evaluate(const Position& pos, int* complexity) {
 
       // Blend nnue complexity with (semi)classical complexity
       nnueComplexity = (  406 * nnueComplexity
-                        + 424 * abs(psq - nnue)
-                        + int(optimism) * int(psq - nnue)
+                        + (424 + optimism) * abs(psq - nnue)
                         ) / 1024;
 
       // Return hybrid NNUE complexity to caller