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[stockfish] / src / bitboard.cpp

diff --git a/src/bitboard.cpp b/src/bitboard.cpp
index 384831adc8f7061f09797cbeff28d2e166eae574..cae7e0cae32e2fedf633af09730b631661517252 100644 (file)
--- a/src/bitboard.cpp
+++ b/src/bitboard.cpp
@@ -226,6 +226,7 @@ Bitboard StepAttackBB[16][64];
 Bitboard RayBB[64][8];
 Bitboard BetweenBB[64][64];
 
+Bitboard SquaresInFrontMask[2][64];
 Bitboard PassedPawnMask[2][64];
 Bitboard OutpostMask[2][64];
 
@@ -427,6 +428,7 @@ namespace {
     for (Color c = WHITE; c <= BLACK; c++)
         for (Square s = SQ_A1; s <= SQ_H8; s++)
         {
+            SquaresInFrontMask[c][s] = in_front_bb(c, s) & file_bb(s);
             PassedPawnMask[c][s] = in_front_bb(c, s) & this_and_neighboring_files_bb(s);
             OutpostMask[c][s] = in_front_bb(c, s) & neighboring_files_bb(s);
         }