Switches · free daily logic puzzle
Switches is a daily deduction puzzle in the lights-out family: three shared boards a day — easy, medium, and hard — identical for every player in the world. The leaderboard ranks by moves first, then time, so the best players aren't the fastest tappers; they're the ones who plan the whole cascade before the first flip.
Yes. All three daily boards are free in your browser — no download, no sign-up required to play.
At midnight UTC, three fresh boards drop — the same boards for everyone.
Reading the wiring graph. Every flip propagates, so the skill is working out the minimal set of switches to press — often backwards from the solved state.
No account is needed to play. Signing in saves your streak and posts your result to the daily leaderboard.