Boxed In

The pencil-and-paper classic, rebuilt for touch. Close a box, take another turn — and try not to hand your opponent the chain.

How it works

Players take turns drawing one line between two adjacent dots — across or down, never diagonally.
Each line can only be drawn once.
Close the fourth side of a box and you claim it: one point, and you go again.
One line can close two boxes at once. That is two points, but still only one extra turn.
The game ends when every line is drawn. Most boxes wins.

Every board size has an odd number of boxes, so a two-player game can never end in a draw.

Four board sizes

Small (21 boxes), Classic (55), Large (91) and Grand (153) — a quick game or a long haul. Grand needs a roomy screen to stay tappable.
Five ways to play

Pass-and-play with a friend, or four AI tiers: Beginner, Easy, Hard and Expert.
Six themes

Paper & Ink, Minimal Studio and Midnight Neon are free; Blueprint, Botanic and Carbon come with Pro. Switch any time, even mid-game.
Pick up where you left off

A game in progress is saved automatically and resumes exactly as you left it.
Sound and haptics

A distinct cue for a line, a box, and a double. Both toggle off if you would rather they did not.
No account, ever

No sign-up and no cloud save — your games and stats live on your device. The browser version carries no ads at all; the Android app uses a connection only to load them.