From 45154ebda0170659fbe9cd122230953331877a8b Mon Sep 17 00:00:00 2001
From: dhb <1084714805@qq.com>
Date: Thu, 13 Jun 2024 17:10:46 +0800
Subject: [PATCH] do FHR only when no other extension

---
 Rapfi/search/ab/search.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Rapfi/search/ab/search.cpp b/Rapfi/search/ab/search.cpp
index d2ae5f81..68eca731 100644
--- a/Rapfi/search/ab/search.cpp
+++ b/Rapfi/search/ab/search.cpp
@@ -1076,8 +1076,8 @@ Value search(Board &board, SearchStack *ss, Value alpha, Value beta, Depth depth
                 extension += (distSelf <= 4 ? 0.20f : 0.05f);
         }
 
-        // Fail high reduction
-        if (likelyFailHigh) {
+        // Fail high reduction/extension
+        else if (likelyFailHigh) {
             if (ss->moveP4[self] >= E_BLOCK4) {
                 // If we failed high for two continous E_BLOCK4 moves, extend rather than reduce
                 if ((ss - 2)->moveP4[self] >= E_BLOCK4)