Previous version chess engine Stockfish
Author compilation - VoyagerOne
Information on the compilation:
Use explicit logic for pruning
Also a speedup since we don't need to recalculate SEE for extensions...as it already determined to be positive.
Results for 12 tests for each version:
Base Test Diff
Mean 2132395 2191002 -58607
StDev 128058 85917 134239
Non functional change.