From e1de1df6d085e87f414769c0d7bb49d46e04d005 Mon Sep 17 00:00:00 2001
From: Andrey Sofronov <andrey.sofronov@gmail.com>
Date: Thu, 4 Nov 2010 22:53:53 +0200
Subject: [PATCH] search: fixed a bug in NULL move pruning

---
 zwsearch.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/zwsearch.c b/zwsearch.c
index 47c66c1..73d0f1a 100644
--- a/zwsearch.c
+++ b/zwsearch.c
@@ -56,7 +56,6 @@ zwsearch(int beta, int depth, int ply, int check, int do_null)
 	if (depth <= 0 && !check)
 		return quiesce(beta - 1, beta, 0, ply, 0);
 
-	do_null = TRUE;
 	futility_prune = FALSE;
 	futility_max = 0;
 	hash_moves[ply] = 0;
-- 
2.11.4.GIT