// Blend nnue complexity with (semi)classical complexity
nnueComplexity = ( 406 * nnueComplexity
- + 424 * abs(psq - nnue)
- + (optimism > 0 ? int(optimism) * int(psq - nnue) : 0)
+ + (424 + optimism) * abs(psq - nnue)
) / 1024;
// Return hybrid NNUE complexity to caller