TicTacToe improved. The rules remain mostly he same, only the two players are playing on 9 boards at the same time, and the objetive is to fill in a row, column or diagonal of boards.
Initially you can play on any board, but the next play must occur on the board that has the same coordinate as the last marked spot relative to its own board.
It's harder to explain than it is to pick up by playing, I promise.
You can play it here