There's a merry little club called "The Tic-Tac-Toe Club". And, although they consider themselves to be very enlightened, they love to death gathering around their favorite place on Earth: a shady little cave.
But, contrary to what is usually the case, there are no lights there inside.
The reflection of a tough game
Just an endless constellation of dully twinkling lights:
played on a grid ...
... and encouraged by an evil little bird.