From: Joona Kiiski <joona.kiiski@gmail.com>
Date: Fri, 27 Nov 2009 10:06:55 +0000 (+0200)
Subject: Drop OnlyMoveExt PV-condition from 8 plies to 6 plies
X-Git-Url: https://git.sesse.net/?p=stockfish;a=commitdiff_plain;h=1a7047f544b29cc16c970df1379752f0541ed90f;hp=25c22ffe7ad94f76e4330626adb50304b8392d66;ds=sidebyside

Drop OnlyMoveExt PV-condition from 8 plies to 6 plies

Orig - Mod: 731 - 750

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

diff --git a/src/search.cpp b/src/search.cpp
index 8f85e124..95d8be98 100644
--- a/src/search.cpp
+++ b/src/search.cpp
@@ -1169,7 +1169,7 @@ namespace {
       // To verify this we do a reduced search on all the other moves but the ttMove,
       // if result is lower then TT value minus a margin then we assume ttMove is the
       // only one playable. It is a kind of relaxed single reply extension.
-      if (   depth >= 8 * OnePly
+      if (   depth >= 6 * OnePly
           && tte
           && move == tte->move()
           && ext < OnePly