From: Marco Costalba <mcostalba@gmail.com>
Date: Sun, 9 Jun 2013 08:58:24 +0000 (+0200)
Subject: Fix incorrect 'ss' pointer in early stop check
X-Git-Url: https://git.sesse.net/?p=stockfish;a=commitdiff_plain;h=902c0566a62337c1ec98be3839c70e54329140b2

Fix incorrect 'ss' pointer in early stop check

The exclusion search used to verify one move is much
better than other shall be called with 'ss' and not
'ss+1'

No functional change.
---

diff --git a/src/search.cpp b/src/search.cpp
index 1d81fd04..12684455 100644
--- a/src/search.cpp
+++ b/src/search.cpp
@@ -455,11 +455,11 @@ namespace {
                     || Time::now() - SearchTime > (TimeMgr.available_time() * 20) / 100))
             {
                 Value rBeta = bestValue - 2 * PawnValueMg;
-                (ss+1)->excludedMove = RootMoves[0].pv[0];
-                (ss+1)->skipNullMove = true;
-                Value v = search<NonPV>(pos, ss+1, rBeta - 1, rBeta, (depth - 3) * ONE_PLY);
-                (ss+1)->skipNullMove = false;
-                (ss+1)->excludedMove = MOVE_NONE;
+                ss->excludedMove = RootMoves[0].pv[0];
+                ss->skipNullMove = true;
+                Value v = search<NonPV>(pos, ss, rBeta - 1, rBeta, (depth - 3) * ONE_PLY);
+                ss->skipNullMove = false;
+                ss->excludedMove = MOVE_NONE;
 
                 if (v < rBeta)
                     stop = true;