A daily logic puzzle

Crosslit is a logic puzzle game for Android. There's one new puzzle every day, the same for everyone. Most take 3 to 10 minutes.

Puzzles grow through the week, from 5×5 on Monday to 8×8 at the weekend. When you've solved one, share your time without giving the answer away.

How a puzzle works

1. Tap a tile to place a lamp. It lights its own tile and the four tiles touching it.
2. Light every open tile exactly once. No dark tiles, and no tiles lit twice.
3. Stones never need light, and they can't hold a lamp.
4. Every puzzle has one answer, and logic alone gets you there. If you're stuck, a hint shows the next step and says why.

Get the app

Crosslit is free, with no ads and no accounts. It works offline.

Coming soon to Google Play