+* Message location is fixed, should be deducted from screen size
+* "glue" don't work when there are two emtpy colums next to each other
+* Levels should also limit number of colors
+ - Difficult <max size>, 5 colors
+* Give a way to rotate the borad
+* Find a better message than "Game Over"
+* Make the message div nicer (round, colors ...)