Chess engine: Stockfish 19120119

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Stockfish - UCI chess engine, interesting compiled byAlain SAVARD

 King proximity tweak for passed pawns 

 Decrease slightly the penalty for opponent king distance to passed pawn. Instead of 5:2 ratio (or 20:8) we now have 19:8 

 STC 
LLR: 2.95 (-2.94,2.94) [-1.50,4.50] 
Total: 28638 W: 6297 L: 6104 D: 16237 Elo +2.34

 LTC 
LLR: 2.95 (-2.94,2.94) [0.00,3.50] 
Total: 59586 W: 9766 L: 9429 D: 40391 Elo +1.97

 Where to go from here: 
Further tests will try a similar tweak on the friendly king proximity penalty, because recent experiments indicate that this penalty is quite sensitive, but I wanted to try first on the larger term. 


Rating JCER=3257

 Stockfish 19120119 - download


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