open with #290

katrain/__main__.py

@@ -157,7 +157,10 @@ class KaTrainGui(Screen, KaTrainBase):
         self.board_gui.trainer_config = self.config("trainer")
         self.engine = KataGoEngine(self, self.config("engine"))
         threading.Thread(target=self._message_loop_thread, daemon=True).start()
-        self._do_new_game()
+        if len(sys.argv) == 2 and os.path.isfile(sys.argv[1]):
+            self.load_sgf_file(sys.argv[1], fast=True, rewind=True)
+        else:
+            self._do_new_game()
 
     def update_gui(self, cn, redraw_board=False):
         # Handle prisoners and next player display