Click where you want to place your marker. Then wait until the AI places theirs before taking your next turn. Your turn first!
The basic coding on this is finished, but I still need to polish it up and fix any bugs, hence the beta status. You'll be able to choose whether to be a nought (O) or a cross (X) in the final version. I'll add an explanation for the algorithm the AI uses and other stuff like that once it's all prettied up. Have fun! :) If the message saying you won or lost persists after you start again, just click the green flag 'til it disappears. If you encounter any bugs or have any suggestions, let me know in the comments!