E.g. to explode DebugView.

When I saw this I thought it was a complete game. However, you have posted your exe for feedback far too early into its development cycle. These issues are ones you should pick out through your own tests and try to iron out. The best way to achieve this is to write down all the rules of Tic-Tac-Toe and tick each off when the exe is able to run them.

What you are likely to do on this current path is upload a new exe every time you make a minor change. After a while, people might be more inclined to ignore it if they think "it's just another exe". What I recommend is that, if you find you are unable to complete one, or more, of the rules and are struggling, present your problem here. Include source code, highlight where you have narrowed the issue down to and use the feedback to work yourself out of the bugs.

Here is a list of bugs I found:

1. Multiple '3 in a rows'.
2. Window name as 'Triangle'.
3. Mouse click near edge of one square places in another square.
4. Grid too small.
5. Game does not reset.
6. Game should show a small text line saying 'Left click... Right click...'.

Work through these and then you should have a basic version of the Game, and post back here on your success.

Regards,

Stitchs.