From: Marco Costalba <mcostalba@gmail.com>
Date: Sun, 29 Apr 2012 17:58:48 +0000 (+0100)
Subject: Remove unreachable extension condition
X-Git-Url: https://git.sesse.net/?p=stockfish;a=commitdiff_plain;h=39c08c17c5812dc947d83a07cae702029319af2f

Remove unreachable extension condition

A PvNode that givesCheck has been already granted
an extension of ONE_PLY in previous condition.

No functional change.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
---

diff --git a/src/search.cpp b/src/search.cpp
index 0087cdc0..55bf52b2 100644
--- a/src/search.cpp
+++ b/src/search.cpp
@@ -863,7 +863,7 @@ split_point_start: // At split points actual search starts from here
           ext = ONE_PLY;
 
       else if (givesCheck && pos.see_sign(move) >= 0)
-          ext = PvNode ? ONE_PLY : ONE_PLY / 2;
+          ext = ONE_PLY / 2;
 
       // Singular extension search. If all moves but one fail low on a search of
       // (alpha-s, beta-s), and just one fails high on (alpha, beta), then that move