X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fsearch.h;h=1218ef3be223289f10fbb744d3bab771d1b32fb8;hp=ba8a90539e6f7c343dea616136ec95a3ba59915a;hb=8b15961349e18a9ba113973c53f53913d0cd0fad;hpb=9da3b44ddc7bc9ea7094b91663cbc0f8319c46be

diff --git a/src/search.h b/src/search.h
index ba8a9053..1218ef3b 100644
--- a/src/search.h
+++ b/src/search.h
@@ -57,7 +57,8 @@ struct RootMove {
 
   explicit RootMove(Move m) : pv(1, m) {}
 
-  bool operator<(const RootMove& m) const { return m.score < score; } // Descending sort
+  bool operator<(const RootMove& m) const {
+    return m.score != score ? m.score < score : m.previousScore < previousScore; } // Descending sort
   bool operator==(const Move& m) const { return pv[0] == m; }
   bool extract_ponder_from_tt(Position& pos);