How to Play 15 Puzzle

THE PLAYBOOK · PLJTSS

How to play 15 Puzzle

Read the aim of 15 Puzzle, then make your first move. Arrange 1 to 15 in reading order with the empty square at the bottom right. Choose a clear next step rather than rushing through the instructions. Compare the starting position with the example in the Guide. Check the relevant rule before repeating a move.

A careful first round

Before your first action, say what you are trying to achieve. Then compare the result with the goal. Refer to the controls when needed.

Your goal

Arrange 1 to 15 in reading order with the empty square at the bottom right. An attractive position is not enough unless the goal is met. Review the board or playing area as it changes.

Step by step

1. Select a tile directly beside the empty square.
2. The tile slides into the gap; diagonal moves are not allowed.
3. Use Undo to step back one move.
4. Finish the ordered board, or choose New puzzle.

Controls

Use the on-screen controls with a mouse or touch. On a smaller screen, keep the active part of the board within view. Use one clear input at a time.

A useful example

When the gap is in the last square, only the tile above it and the tile to its left can move into it. Compare this with the rule that governs the move. Look for the relevant detail.

Watch out for this

A distant tile cannot jump across other tiles. Take a moment to reassess the position before continuing. Before your first action, say what you are trying to achieve. Then compare the result with the goal.

Common questions