A little grid. A bright little puzzle.
Tap a tile to flip it and its neighbours. Turn every light off. Arrows select a tile; Space flips it. Every puzzle is solvable.
Your score: · saved on the public high-score board.
Optional details, saved in this browser. Used when you next join a room. No account needed.
A nickname, a few friends, and you’re all set.
Invite friends too. More computer seats can be added in the room.
No account. No download. Just you.
Send the link or scan the code to jump in.
Anyone with this link can join while the room is unlocked.