Scale up space weight with number of blocked pawns

[stockfish] / src / pawns.h

diff --git a/src/pawns.h b/src/pawns.h
index bd17618f5d8f31fd5009d914b76d78b1a9a7e271..41a88c6f3936935a4475df4e0a28b3a63ffca55d 100644 (file)
--- a/src/pawns.h
+++ b/src/pawns.h
@@ -38,6 +38,7 @@ struct Entry {
   Bitboard passed_pawns(Color c) const { return passedPawns[c]; }
   Bitboard pawn_attacks_span(Color c) const { return pawnAttacksSpan[c]; }
   int passed_count() const { return popcount(passedPawns[WHITE] | passedPawns[BLACK]); }
+  int blocked_count() const { return blockedCount[WHITE] + blockedCount[BLACK]; }
 
   template<Color Us>
   Score king_safety(const Position& pos) {
@@ -59,6 +60,7 @@ struct Entry {
   Square kingSquares[COLOR_NB];
   Score kingSafety[COLOR_NB];
   int castlingRights[COLOR_NB];
+  int blockedCount[COLOR_NB];
 };
 
 typedef HashTable<Entry, 131072> Table;