X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fevaluate.cpp;h=3099924c0f2be48c2da9fde43c2303c562fcdb2b;hp=9a55fbd88789a5096731061fb66d4109591cf8b6;hb=2eec710318255df054a77abb7cd48d680453fd26;hpb=aa10d0aaa60ec3480d3cb1b4a7fcc4084df25d8f

diff --git a/src/evaluate.cpp b/src/evaluate.cpp
index 9a55fbd8..3099924c 100644
--- a/src/evaluate.cpp
+++ b/src/evaluate.cpp
@@ -152,6 +152,8 @@ namespace {
 
   // Hanging contains a bonus for each enemy hanging piece
   const Score Hanging = S(23, 20);
+  const Score KingPawnThreatOne  = S(0, 64);
+  const Score KingPawnThreatMany = S(0, 128);
 
   #undef S
 
@@ -527,7 +529,11 @@ namespace {
         b = weakEnemies & ~ei.attackedBy[Them][ALL_PIECES];
         if (b)
             score += more_than_one(b) ? Hanging * popcount<Max15>(b) : Hanging;
-    }
+
+        b = weakEnemies & pos.pieces(Them, PAWN) & ei.attackedBy[Us][KING];
+        if (b)
+            score += more_than_one(b) ? KingPawnThreatMany : KingPawnThreatOne;
+	}
 
     if (Trace)
         Tracing::terms[Us][Tracing::THREAT] = score;