Bench: 19132122

TerjeKir · Oct 14, 2023 · 41d9ce3 · 41d9ce3
1 parent 55e7499
commit 41d9ce3
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/src/history.h b/src/history.h
@@ -46,6 +46,7 @@ INLINE int Bonus(Depth depth) {
 INLINE void UpdateContHistories(Stack *ss, Move move, int bonus) {
     ContHistoryUpdate(1, move, bonus);
     ContHistoryUpdate(2, move, bonus);
+    ContHistoryUpdate(3, move, bonus / 4);
     ContHistoryUpdate(4, move, bonus);
 }
 
@@ -93,6 +94,7 @@ INLINE int GetQuietHistory(const Thread *thread, Stack *ss, Move move) {
     return  *QuietEntry(move)
           + *ContEntry(1, move)
           + *ContEntry(2, move)
+          + *ContEntry(3, move) / 4
           + *ContEntry(4, move);
 }