The first task of this year qualification round of google code jam was only the problem: “check if a given tic-tac-toe game field has won by player “X” or “O” or it is a draw or “is not finished”. Read the complete description on the google code jam dashboard.
One change: There is a field “T” used as joker (for both player).
+----+ |XOOX| # The "\"-line with XXTX won! |OXXO| |OOTX| |OOOX| +----+