--- a/2048.html	Thu Sep 25 16:09:24 2014 +0300
+++ b/2048.html	Fri Sep 26 01:21:58 2014 +0300
@@ -504,7 +504,7 @@
         return false;
       }
       if ( ! board.move[move].call(null, tmpBrd)) {
-        ui.game.setMessage("AI move "+move+" is ivalid!");
+        ui.game.setMessage("AI move '"+move+"' is ivalid!");
         return false;
       }
       return true;