Strategy Guides
Dots and Boxes Strategy: Master Chains and the Double-Cross
Dots and Boxes is not luck. Learn chains, loops and the double-cross trick that lets you control who opens the big chains at the end.
· 7 min read
Board
Dots & Boxes online
Take turns drawing lines; close a box to claim it and go again. Most boxes wins.
2–4 players
Dots & Boxes guide
Draw lines, close boxes and set traps: the pen-and-paper strategy game, now for 2-4 players online.
What is Dots & Boxes?
Dots and Boxes is a pen-and-paper strategy game where players take turns drawing lines between dots, and whoever closes the fourth side of a box claims it and draws again. On DD Games you can play it free in your browser against Easy, Medium, Hard or Auto bots, pass one device around, or play online with 2 to 4 players.
Dots and Boxes is the grid of dots many of us filled in at the back of a school notebook. It looks simple, but the real game is about chains: late in the game every line gives something away, and the player who controls who has to open the long chains usually wins.
DD Games plays it on 3x3, 4x4, 5x5 or 6x6 boards of boxes. The board grows with the table by default (4x4 for two players, 5x5 for three, 6x6 for four), and you can change it before the first line. Bots have three levels plus Auto, which moves up or down with your recent results, and each bot has its own personality and playing style.
How to play Dots & Boxes
- Choose vs Bot to play against 1 to 3 bots, Same device to pass one phone or laptop around, or Online for 2 to 4 players in a room.
- Pick a board of 3x3, 4x4, 5x5 or 6x6 boxes. Online, the host chooses before the first line is drawn.
- On your turn, draw one line between two neighbouring dots, horizontally or vertically.
- If your line closes the fourth side of a box, the box is yours and you draw again. One line can close two boxes at once.
- When every line has been drawn, the player with the most boxes wins.
Rules
- Each turn draws exactly one line; a line that is already drawn cannot be drawn again.
- Closing a box scores one box and earns an immediate extra line, so one turn can take a whole chain.
- A line that closes nothing passes the turn to the next player.
- The default board follows the player count: 4x4 (16 boxes, 40 lines) for 2 players, 5x5 (25 boxes, 60 lines) for 3 and 6x6 (36 boxes, 84 lines) for 4.
- The board size can only be changed before the first line of a game.
- If the top box count is shared, the game is a draw between those players.
Tips and strategy
- Avoid drawing the third side of a box: the next player will simply take it.
- Early on, play safe lines along the edges and in open areas that give nothing away.
- Late in the game every move gives something away, so hand over the shortest chain you can.
- When taking a long chain, consider leaving the last two boxes so your opponent must open the next chain.
- Count the long chains early; controlling who has to open them usually decides the game.
- Against Hard bots, expect them to know the chain tricks too, so start with a smaller board to practise.
Questions
How do you play Dots and Boxes online with friends?
Choose Online, create a room and share the invite link or room code, or use Quick Play. A room takes 2 to 4 players, and the host picks the board size before the first line.
Do you get another turn after closing a box?
Yes. Every time your line completes a box you draw again, so one move can win a whole chain of boxes.
How big is the Dots and Boxes board?
You can play 3x3, 4x4, 5x5 or 6x6 boxes. By default it is 4x4 for 2 players, 5x5 for 3 and 6x6 for 4.
Can I play Dots and Boxes against the computer?
Yes. Choose vs Bot and play against 1 to 3 bots on Easy, Medium or Hard, or pick Auto to let the level adjust to your recent results.
What is the trick to winning Dots and Boxes?
Avoid giving away third sides, and in the endgame think about chains: sometimes you give up the last two boxes of a chain so your opponent has to open the next, longer one.
What happens if Dots and Boxes ends in a tie?
If two or more players share the most boxes when every line is drawn, the game is a draw between them.
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