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The essentials of playing 15 Puzzle

Practice beyond the first move

Before your first action, say what you are trying to achieve. Then compare the result with the goal. Keep the objective visible.

What counts as success

Arrange 1 to 15 in reading order with the empty square at the bottom right. Keep that objective in view throughout the round. Return to the instructions when a step is unclear.

Work through the instructions

  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.

How your actions work

Use the on-screen controls with a mouse or touch. Keep the playing area visible while using these controls. Contact us with the game and device if a control does not respond.

An example before you play

When the gap is in the last square, only the tile above it and the tile to its left can move into it. Your next round may have a different position, so inspect it before acting. Consider the next action carefully.

Check this before moving on

A distant tile cannot jump across other tiles. Take a moment to reassess the position before continuing. Choose one rule to keep in mind for this round. Apply it consistently rather than guessing what another version might allow.

Further help with the game

While reading the Guide, what is the goal of 15 Puzzle?

Keep this in mind: Arrange 1 to 15 in reading order with the empty square at the bottom right.

While reading the Guide, how do I control 15 Puzzle?

The key detail is this: Use the on-screen controls with a mouse or touch.

While reading the Guide, what example helps explain 15 Puzzle?

The key detail is this: When the gap is in the last square, only the tile above it and the tile to its left can move into it.

For my first round, what should I watch out for in 15 Puzzle?

Keep this in mind: A distant tile cannot jump across other tiles.

While learning, what format does 15 Puzzle offer?

Keep this in mind: Play using the solo mode shown on this page. Read the controls before starting a new round.

While learning, which play mode does 15 Puzzle use?

The mode on this page is Solo. Same-device play uses one screen; this game library does not provide internet matchmaking.

Where should I start with 15 Puzzle?

For clarity: Select a tile directly beside the empty square.

Do I need an account or a payment for 15 Puzzle?

Keep this in mind: No player account or payment is needed. Game scores are recreational results, not cash prizes.

While learning, how can I find 15 Puzzle again?

Here is the relevant explanation: Use the Games list or save this game page in your browser bookmarks. The Guide is linked from the playing page.

How do I report an issue with 15 Puzzle?

For clarity: Use the contact form and include the game name, browser, device and the actions that led to the issue. Do not send passwords or payment details.