An ultimate tic tac toe game
2 player game
Inspired by http://mathwithbaddrawings.com/2013/06/16/ultimate-tic-tac-toe/
Win three games of Tic Tac Toe in a row.
You may only play in the big field that
corresponds to the last small field your
opponent played. When you are sent to a
field that is already decided, you can
choose freely.