Tic-tac-toe is a game where you take turns marking spaces in a 3×3 grid. To win you have to successfully place three of your markers in a horizontal, vertical or diagonal row. In this map you will play against a machine which is entirely powered by redstone! I played two times and both times was a draw. It really speaks to the intelligence of the thing!
How to play?
Find the room as seen in the image down below. There you will find some buttons on the floor, a couple of redstone lamps and a lever. Before you begin make sure to pull up the lever (marked red in the image) before selecting your first marker in the grid.
After you’ve selected a marker (X) it will take severals seconds (in my case around 15 seconds) for the computer (O) to make its choice. You don’t need to press any button for the computer to start. It acts automatically.
Continue until there are no spaces left in the grid. Look at the redstone lamp to see the result. In this case it got to a draw!
To play again pull down the lever, wait a few seconds and then pull it up again.
This is the computer which powers it. It looks quite amazing!