X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fevaluate.cpp;h=333d04aca277d0b456800017980887967d14e09d;hp=6308f472e37e75cd747ebcfe27e157aae2821ce3;hb=26bd29e45bea7c756550c3c8130ac64ba71375de;hpb=31ac538f96a54b294e79213d33aacf5d8a182c87

diff --git a/src/evaluate.cpp b/src/evaluate.cpp
index 6308f472..333d04ac 100644
--- a/src/evaluate.cpp
+++ b/src/evaluate.cpp
@@ -274,6 +274,7 @@ namespace {
             kingRing[Us] |= shift<EAST>(kingRing[Us]);
 
         kingAttackersCount[Them] = popcount(kingRing[Us] & pe->pawn_attacks(Them));
+        kingRing[Us] &= ~double_pawn_attacks_bb<Us>(pos.pieces(Us, PAWN));
         kingAttacksCount[Them] = kingAttackersWeight[Them] = 0;
     }
   }
@@ -309,7 +310,7 @@ namespace {
         attackedBy[Us][Pt] |= b;
         attackedBy[Us][ALL_PIECES] |= b;
 
-        if (b & kingRing[Them] & ~double_pawn_attacks_bb<Them>(pos.pieces(Them, PAWN)))
+        if (b & kingRing[Them])
         {
             kingAttackersCount[Us]++;
             kingAttackersWeight[Us] += KingAttackWeights[Pt];
@@ -559,8 +560,7 @@ namespace {
 
     // Bonus for restricting their piece moves
     restricted =   attackedBy[Them][ALL_PIECES]
-                & ~attackedBy[Them][PAWN]
-                & ~attackedBy2[Them]
+                & ~stronglyProtected
                 &  attackedBy[Us][ALL_PIECES];
     score += RestrictedPiece * popcount(restricted);