Raise penalty for knight attacked by pawn

Raise a bit the penalty for knight attacked by pawn.

STC:
LLR: 2.97 (-2.94,2.94) [-1.50,4.50]
Total: 27744 W: 5563 L: 5380 D: 16801

LTC:
LLR: 2.96 (-2.94,2.94) [0.00,4.00]
Total: 87571 W: 14747 L: 14314 D: 58510

Bench: 8285241

Resolves #270

diff --git a/src/evaluate.cpp b/src/evaluate.cpp
index 77096c9..c880b7c 100644 (file)
--- a/src/evaluate.cpp
+++ b/src/evaluate.cpp
@@ -148,7 +148,7 @@ namespace {
   // ThreatenedByPawn[PieceType] contains a penalty according to which piece
   // type is attacked by an enemy pawn.
   const Score ThreatenedByPawn[] = {
-    S(0, 0), S(0, 0), S(87, 118), S(84, 122), S(114, 203), S(121, 217)
+    S(0, 0), S(0, 0), S(107, 138), S(84, 122), S(114, 203), S(121, 217)
   };
 
   // Assorted bonuses and penalties used by evaluation