X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fbitbase.cpp;h=9d2cde030754d48799ab40bed23fc68b7751486e;hp=9322e537f2837cd2bf2ba6588bda42baa0e3b524;hb=6b5322ce000d6a8a6f845beda2d7e149e1baea0c;hpb=67d91dfd505ce7e2c641c12e5d14b50896874ec7

diff --git a/src/bitbase.cpp b/src/bitbase.cpp
index 9322e537..9d2cde03 100644
--- a/src/bitbase.cpp
+++ b/src/bitbase.cpp
@@ -196,8 +196,8 @@ namespace {
 
     while (b)
     {
-        r |= Us == WHITE ? db[index(pop_1st_bit(&b), bksq, psq, BLACK)]
-                         : db[index(wksq, pop_1st_bit(&b), psq, WHITE)];
+        r |= Us == WHITE ? db[index(pop_lsb(&b), bksq, psq, BLACK)]
+                         : db[index(wksq, pop_lsb(&b), psq, WHITE)];
 
         if (Us == WHITE && (r & WIN))
             return WIN;