Diagram of the BoxOff tray set up for a new game

Setup

Place the empty tray in front of you and keep the piece bag within reach. Draw pieces one at a time and drop each into the next open cell, filling the tray in reading order.

Replace with exact component list and starting count from the rulebook.

The core rule

Remove a matching pair with a clear box between them

Pick any two pieces of the same colour. Draw the smallest rectangle (the “box”) that contains both. If that rectangle contains no other pieces, lift the pair out. If it contains even one other piece, the move is not allowed.

A legal move: two matching pieces with an empty rectangle between them

Legal

The two matching pieces are corners of a rectangle that is otherwise empty, so they come off together.

An illegal move: another piece sits inside the rectangle between the pair

Blocked

Another piece sits inside the rectangle, so this pair cannot be removed yet. Clear the intruder first.

A turn

Step by step

  1. Draw and place

    Take pieces from the bag and fill the tray until it is full, or until the rulebook's draw limit is reached.

  2. Look for a clear box

    Scan for two pieces of one colour whose connecting rectangle is empty.

  3. Remove the pair

    Lift both pieces out. The gaps they leave open up new moves.

  4. Repeat

    Keep removing pairs. Draw again when the rules allow, and keep space open for the pieces still to come.

Winning and losing

Placeholder: you win if you remove every piece and leave the tray empty. You lose if the tray fills and no legal pair remains. Replace this with the precise end-game and scoring text from the rulebook.

Variants

Placeholder: note any two-player, timed, or scoring variants here, plus a pointer to the monthly challenges for fixed starting layouts.

Put it into practice

Set up this month's fixed layout and see how far you get.