X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fevaluate.cpp;h=e29b9b0f43ba9306fc39425a4bdadec829b9244d;hp=984a85a65e0492c3daaa46ddc72f06709ae32487;hb=57797822f81386fc277de73599a05ad06a7dc7b6;hpb=7062db7cb25a322a3c6bc18b06f1df2dc6431ef8

diff --git a/src/evaluate.cpp b/src/evaluate.cpp
index 984a85a6..e29b9b0f 100644
--- a/src/evaluate.cpp
+++ b/src/evaluate.cpp
@@ -577,6 +577,12 @@ Value do_evaluate(const Position& pos, Value& margin) {
 
         mobility += MobilityBonus[Piece][mob];
 
+        if (Piece == BISHOP && (PseudoAttacks[Piece][pos.king_square(Them)] & s)) {
+             const Bitboard between = BetweenBB[s][pos.king_square(Them)] & pos.pieces();
+             if (!more_than_one(between))
+                 score += make_score(25, 25);
+        }
+
         // Decrease score if we are attacked by an enemy pawn. Remaining part
         // of threat evaluation must be done later when we have full attack info.
         if (ei.attackedBy[Them][PAWN] & s)