My friend made a Tic-Tac-Toe game

[DevilsCharm]

The game was over 1000 lines of code, and it had a 2-player mode and a 1-player mode (where you could play an AI), and it was cool. I looked at the code, and it was actually very simple, just extremely, extremely long.

[Lop]

I had a friend make an unbeatable tic-tac-toe game on his calculator once. It would always end in a draw or you loosing.