try use tteval for static eval when oppo5

test r15
dhbloo · Jun 13, 2024 · de266ba · de266ba
1 parent fa863d2
commit de266ba
Showing 1 changed file with 3 additions and 5 deletions.
diff --git a/Rapfi/search/ab/search.cpp b/Rapfi/search/ab/search.cpp
@@ -804,13 +804,11 @@ Value search(Board &board, SearchStack *ss, Value alpha, Value beta, Depth depth
     (ss + 2)->killers[0] = Pos::NONE;
     (ss + 2)->killers[1] = Pos::NONE;
 
-    if (oppo4) {
-        // Use static evaluation from previous ply if opponent makes a four/five attack
-        ss->staticEval = -(ss - 1)->staticEval;
+    if (oppo5) {
+        ss->staticEval = (ttHit && ttEval != VALUE_NONE) ? ttEval : -(ss - 1)->staticEval;
 
         // Skip early pruning when we only have one possible move
-        if (oppo5)
-            goto moves_loop;
+        goto moves_loop;
     }
     else if (!RootNode) {
         if (ttHit) {