X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fposition.cpp;h=b10ea9ea49c787bab1b08670917505cb3cb5023e;hp=537674c9119c123370c44456cfb7b9ea94301451;hb=19540c9ee824abc156d5a12ab353c250a083da4b;hpb=34178205fc762638e633a61ecc45360e1662bdee

diff --git a/src/position.cpp b/src/position.cpp
index 537674c9..b10ea9ea 100644
--- a/src/position.cpp
+++ b/src/position.cpp
@@ -379,8 +379,7 @@ Bitboard Position::hidden_checkers() const {
   {
       b = squares_between(ksq, pop_1st_bit(&pinners)) & occupied_squares();
 
-      // Only one bit set and is an our piece?
-      if (b && !(b & (b - 1)) && (b & pieces(sideToMove)))
+      if (b && single_bit(b) && (b & pieces(sideToMove)))
           result |= b;
   }
   return result;
@@ -1520,7 +1519,7 @@ void Position::init() {
       Bitboard b = cr;
       while (b)
       {
-          Key k = zobCastle[1 << pop_1st_bit(&b)];
+          Key k = zobCastle[1ULL << pop_1st_bit(&b)];
           zobCastle[cr] ^= k ? k : rk.rand<Key>();
       }
   }