I have seen this game and played it with my grandkids. It is a two player game and keeps track of who picked what and who won the square. It is big enough to be challenging, but does not require a phd, since it is a kids game.
Enjoy,
Bill
PS, I am working on an UNDO for the last action, but not if you won a square.
PPS, Program has been modified to allow UNDO - 2016-09-03 @ 11:02 PM