X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fucioption.cpp;h=fe1a4709e706568487dccf431c072ae08b12416c;hp=75eb205313124669de33679a1e8434506e6438c7;hb=9b2635634714558cc492d1c31db7c93127369c88;hpb=7c8a8e038f0acd48a30ec7e3971c7d0efcfbf25d

diff --git a/src/ucioption.cpp b/src/ucioption.cpp
index 75eb2053..fe1a4709 100644
--- a/src/ucioption.cpp
+++ b/src/ucioption.cpp
@@ -76,7 +76,7 @@ OptionsMap::OptionsMap() {
   o["Hash"]                        = UCIOption(32, 4, 8192, on_hash_size);
   o["Clear Hash"]                  = UCIOption(on_clear_hash);
   o["Ponder"]                      = UCIOption(true);
-  o["OwnBook"]                     = UCIOption(true);
+  o["OwnBook"]                     = UCIOption(false);
   o["MultiPV"]                     = UCIOption(1, 1, 500);
   o["Skill Level"]                 = UCIOption(20, 0, 20);
   o["Emergency Move Horizon"]      = UCIOption(40, 0, 50);