From: Fabian Fichter <ianfab@users.noreply.github.com>
Date: Thu, 15 Nov 2018 22:53:53 +0000 (+0100)
Subject: Avoid qsearch explosions for clobber
X-Git-Url: http://winboard.nl/cgi-bin?a=commitdiff_plain;h=501ae3b4b599f94cc521d4b86c74df2a4a08a987;p=fairystockfish.git

Avoid qsearch explosions for clobber
---

diff --git a/src/search.cpp b/src/search.cpp
index 6942725..8108c61 100644
--- a/src/search.cpp
+++ b/src/search.cpp
@@ -1327,6 +1327,10 @@ moves_loop: // When in check, search starts from here
 
       moveCount++;
 
+      // Avoid qsearch explosion for clobber
+      if (type_of(pos.moved_piece(move)) == CLOBBER_PIECE && bestValue > VALUE_MATED_IN_MAX_PLY)
+          continue;
+
       // Futility pruning
       if (   !inCheck
           && !givesCheck