A redstone powered version of the classic game Tic-Tac-Toe made in minecraft. After having taken inspiration from multiple videos showcasing other people's designs, I decided to come up with my own and I am quite pleased with how it turned out. As shown by the images, it is not the most compact design in any way, but works reliably and was easy to understand and build.

UPDATE:
I have recently finished work on my brand new AI or "computer" to play against you. Enjoy the game with both multiplayer and single player in this version! I have spent a few days bug testing and it seems to run quite well, but feel free to leave a comment if you find another bug in the system:)

Additional Notes

Features:
-Two players (blue and red representing naughts and crosses)
-Turn detection and spam protection
-Device for ensuring only one symbol per square
-Win detection for any possible win scenario
-"Game Lobby" with piston doors to enter playing room
UPDATE:
-Single player mode with AI !!!
-Extra cheat protection for both modes