Bugs: If when you start/restart the game and the numbers don't show click the green flag again and it should. Controls: Up the top it tells you who's turn it is, if it is your turn, press the number where you would like to place your X or your O. It automatically checks whether you got three in a row and will say X wins or O wins when necessary.
If you find a bug, please report how to find it in the comments and i will fix it.
