From fa51d25189f00cc72140d9d8cee02c5e50f1b8a2 Mon Sep 17 00:00:00 2001
From: Joost VandeVondele <Joost.VandeVondele@gmail.com>
Date: Sat, 9 Nov 2019 06:52:23 +0100
Subject: [PATCH] Test removal of razoring. Bench: 4573100

---
 src/search.cpp | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/src/search.cpp b/src/search.cpp
index 4b90ab1c973..57f536c9de6 100644
--- a/src/search.cpp
+++ b/src/search.cpp
@@ -784,12 +784,6 @@ namespace {
         tte->save(posKey, VALUE_NONE, ttPv, BOUND_NONE, DEPTH_NONE, MOVE_NONE, eval);
     }
 
-    // Step 7. Razoring (~2 Elo)
-    if (   !rootNode // The required rootNode PV handling is not available in qsearch
-        &&  depth < 2
-        &&  eval <= alpha - RazorMargin)
-        return qsearch<NT>(pos, ss, alpha, beta);
-
     improving =   ss->staticEval >= (ss-2)->staticEval
                || (ss-2)->staticEval == VALUE_NONE;