Fix displaying mate

mhib · Oct 31, 2020 · 0cc4dac · 0cc4dac
1 parent e467581
commit 0cc4dac
Showing 1 changed file with 6 additions and 2 deletions.
diff --git a/engine/search.go b/engine/search.go
@@ -148,10 +148,12 @@ func (t *thread) quiescence(depth, alpha, beta, height int, inCheck bool) int {
 			bestMove = move
 			if val > alpha {
 				alpha = val
+				if pvNode {
+					t.stack[height].PV.assign(move, &t.stack[height+1].PV)
+				}
 				if val >= beta {
 					break
 				}
-				t.stack[height].PV.assign(move, &t.stack[height+1].PV)
 			}
 
 		}
@@ -465,10 +467,12 @@ afterPreMovesPruning:
 			bestMove = move
 			if val > alpha {
 				alpha = val
+				if pvNode {
+					t.stack[height].PV.assign(move, &t.stack[height+1].PV)
+				}
 				if alpha >= beta {
 					break
 				}
-				t.stack[height].PV.assign(move, &t.stack[height+1].PV)
 			}
 		}
 	}