diff --git a/NineChess/src/config.h b/NineChess/src/config.h
index 0c96cbda..961a8f66 100644
--- a/NineChess/src/config.h
+++ b/NineChess/src/config.h
@@ -25,7 +25,7 @@
 
 #define RANDOM_MOVE
 
-#define MILL_FIRST
+//#define MILL_FIRST
 
 //#define DEAL_WITH_HORIZON_EFFECT