Permanent URL: https://mezzacotta.net/itoons/?comic=454
Strip by: Averagemoe
[A checkerboard. All the black pieces are on white squares, while the red ones are all on black squares.]
Caption: Red to continue insisting the game is on black squares.
The author writes:
I don't think there's a rule against jumping orthogonally. It just never comes up in a normal game.
Original xkcd comic: 1287.