One tap flips a tile
and its neighbours.

Lights that were on turn off, and lights that were off turn on. That's the whole trick. Clear this little board in a single tap. Go on, try the middle.

Not all tiles flip the same pattern

Every tile shows a symbol telling you which lights it will flip. Tap a row below to see its pattern light up.

Hints, targets & ratings

• 🎯
  Target: the fewest moves this board can possibly be solved in. Match it for a perfect score.
• 💡
  Hint: once per puzzle, light up a tile that is a correct move from where you are right now. It keeps glowing until you play it, so a stray tap won't waste it.
• ⭐
  Ratings: ★★★ Perfect matches the target, ★★ Great is within 2 moves of it, ★ Solved is anything else.
• ↩️
  Mistakes come in pairs: tapping a tile a second time undoes it, so a misclick always costs you 2 moves. That's why scores land on the target, target + 2, target + 4, and so on.
• 📅
  Daily puzzles: a fresh puzzle per difficulty every day, the same for everyone. Practice mode is unlimited.
• 🏃
  Challenge modes: Gauntlet is a run of ever-bigger boards sharing one move budget. Blitz is 60 seconds against the clock. Both end for real.
• 📊
  Streaks: sign in to track daily streaks, perfect solves, and personal bests.