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Box Claim — Dots and Boxes Online

by crokocat · Board
Plays on
Desktop · Phone · Tablet
Price
Free · no download · no sign-up

Box Claim is the pen-and-paper classic dots and boxes on a bright little board. Take turns drawing lines; close the fourth side of a box to claim it and draw again. Don't hand over a third side — and when the grid is full, most boxes wins.

Box Claim is dots and boxes, the pen-and-paper classic also known as Boxes, Squares, the Dot Game or Pigs in a Pen, played on a bright little 3D board. Take turns drawing lines between dots; close the fourth side of a box to claim it and draw again. When the grid is full, the player with the most boxes wins.

Every line is a rounded bar in your colour, and a closed box fills with a star tile. Because claiming a box gives you another turn, whole chains of boxes can fall to one player in a single go — which is why the golden rule is never to hand over a box's third side while you still have a safe line to draw.

Late in the game every move gives something away, and the game turns into counting chains. Hand over the shortest chain you can, and try to be the one who receives the long ones. Strong players use the double-dealing move: leave the last two boxes of a chain to the opponent so that they have to open the next, longer chain for you.

The board grows from 3×3 to 5×6 as you climb, and the computer gets sharper, learning to keep control with that double-dealing trick on higher levels. Win by at least a quarter of the board's boxes for three stars. In 2 players mode you play a friend on one screen, taking turns.

Box Claim is free on crokocat and plays in the browser on desktop, phone and tablet with no download — click or tap between two dots to draw a line. It is a quick strategy game that rewards counting more than luck, a good fit for anyone who liked dots and boxes in a school notebook.

How to play Box Claim

Claim more boxes than your opponent:

Desktop: Click between two dots.
Mobile: Tap between two dots.

Game modes

ModeWhat changesWho it's for
LevelsBigger boards and a sharper computer as you climb.Puzzle and strategy fans.
2 playersTwo people on one screen, taking turns.Friends and family.

Tips for Box Claim

Who made Box Claim?

Box Claim was built by crokocat game studio in 2026 — dots and boxes with a computer that learns the chain tricks.

About this game

Controls
Tap between two neighbouring dots to draw a line. With a mouse, a faint line shows where the click goes.
Supported devices
desktop, phone, tablet
Developer
crokocat
Genre
Board
Release date
September 2026
Latest update
September 2026

Related categories

boarddots and boxesstrategyclassic

Frequently asked questions

Is Box Claim free to play?

Yes. Box Claim is free on crokocat with no download and no sign-up — it runs in your browser on desktop, phone and tablet.

What other names does dots and boxes have?

The same game is called Boxes, Squares, the Dot Game, Dot to Dot Grid or Pigs in a Pen. Box Claim plays the standard rules: close the fourth side to claim a box and draw again.

Is Box Claim the same as Dots and Boxes?

Yes. It is the pen-and-paper classic: draw lines in turn, close the fourth side of a box to claim it and draw again, and the most boxes wins.

How do I claim a box?

Draw its fourth side. You then draw another line.

Why does the computer leave two boxes to me?

It's the double-dealing move: taking them would make you give it the next, longer chain.

How do I get three stars?

Win by at least a quarter of the board's boxes.

Can I play with a friend?

Yes — choose 2 players and take turns on one screen.

Guides & tips

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