diff --git a/AlphaGo/play.py b/AlphaGo/play.py
index c677c04..1066624 100644
--- a/AlphaGo/play.py
+++ b/AlphaGo/play.py
@@ -90,8 +90,9 @@ if __name__ == '__main__':
     parser.add_argument("--black_weight_path", type=str, default=None)
     parser.add_argument("--white_weight_path", type=str, default=None)
     parser.add_argument("--save_path", type=str, default="./go/")
-    parser.add_argument("--debug", type=bool, default=False)
+    parser.add_argument("--debug", action="store_true", default=False)
     parser.add_argument("--game", type=str, default="go")
+    parser.add_argument("--train", action="store_true", default=False)
     args = parser.parse_args()
 
     if not os.path.exists(args.data_path):
@@ -113,7 +114,8 @@ if __name__ == '__main__':
     thread_train = threading.Thread(target=game.model.train, args=("file",),
                                     kwargs={'data_path':args.data_path, 'batch_size':128, 'save_path':args.save_path})
     thread_play = threading.Thread(target=play, args=(engine, args.data_path))
-    thread_list.append(thread_train)
+    if args.train:
+        thread_list.append(thread_train)
     thread_list.append(thread_play)
 
     for t in thread_list: