From: ElbertoOne <lubvdberg@gmail.com>
Date: Tue, 2 Oct 2018 07:07:29 +0000 (+0200)
Subject: Simplify check extensions
X-Git-Url: https://git.sesse.net/?p=stockfish;a=commitdiff_plain;h=738a6dfd4c71c3ce11d614076117793b4cdf119e;hp=97d2cc9a9c1c4b6ff1b470676fa18c7fc6509886

Simplify check extensions

Remove the !moveCountPruning condition for check extensions, which seems not necessary.

STC:
LLR: 2.95 (-2.94,2.94) [-3.00,1.00]
Total: 22238 W: 4835 L: 4715 D: 12688
http://tests.stockfishchess.org/tests/view/5bb3241a0ebc592439f6d2ac

LTC:
LLR: 2.95 (-2.94,2.94) [-3.00,1.00]
Total: 36593 W: 5898 L: 5802 D: 24893
http://tests.stockfishchess.org/tests/view/5bb34c220ebc592439f6d5dc

Bench: 4274207
---

diff --git a/src/search.cpp b/src/search.cpp
index 7dc67488..c78a71a9 100644
--- a/src/search.cpp
+++ b/src/search.cpp
@@ -933,7 +933,6 @@ moves_loop: // When in check, search starts from here
               extension = ONE_PLY;
       }
       else if (    givesCheck // Check extension (~2 Elo)
-               && !moveCountPruning
                &&  pos.see_ge(move))
           extension = ONE_PLY;