Add "Null driven IID" UCI option (default true)

[stockfish] / src / search.cpp

diff --git a/src/search.cpp b/src/search.cpp
index 2a2e32f943fae435ef69719364504b7b2f58fedc..dd5e921ef41bb605e543295bcd3d40ee64f14b9b 100644 (file)
--- a/src/search.cpp
+++ b/src/search.cpp
@@ -393,6 +393,7 @@ void think(const Position &pos, bool infinite, bool ponder, int side_to_move,
   if (UseLogFile)
       LogFile.open(get_option_value_string("Search Log Filename").c_str(), std::ios::out | std::ios::app);
 
+  UseNullDrivenIID = get_option_value_bool("Null driven IID");
   UseQSearchFutilityPruning = get_option_value_bool("Futility Pruning (Quiescence Search)");
   UseFutilityPruning = get_option_value_bool("Futility Pruning (Main Search)");