With his latest library I have now put together a nice little sudoku game.
It requires 2 resistors for the composite video output.
We also need 5 pushbutton switches. Left, right, up, down and fire.
These are wired to the same arduino pins as used by nootropic in his
hackvision board design.
I have dont have a hackvision board but it should run my sudoku program.
How about adding the ability to have the arduino solve a puzzle (eg. taken from a newspaper)? You could type in the starting grid and algorithmically fill in the rest. That would be cool.
But anyway this is a really nice project. Well played.