X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=src%2Fposition.cpp;h=62e6e2387cb657a58976ce52a4faa9be16db1ff1;hb=02ef1f4496965b5ad8c26ac6bc18245eaffae2ea;hp=08ed1a89e1578f8202392c4bbf61daa8653fcda9;hpb=15ac117ac492e3147b391aa0ee3665fe8876be63;p=stockfish

diff --git a/src/position.cpp b/src/position.cpp
index 08ed1a89..62e6e238 100644
--- a/src/position.cpp
+++ b/src/position.cpp
@@ -1054,7 +1054,10 @@ Key Position::key_after(Move m) const {
   if (captured)
       k ^= Zobrist::psq[captured][to];
 
-  return k ^ Zobrist::psq[pc][to] ^ Zobrist::psq[pc][from];
+  k ^= Zobrist::psq[pc][to] ^ Zobrist::psq[pc][from];
+
+  return (captured || type_of(pc) == PAWN)
+      ? k : adjust_key50<true>(k);
 }