Game guide · ITCGT
Getting started with 15 Puzzle
Try 15 Puzzle at your own pace and keep its objective in view. Arrange 1 to 15 in reading order with the empty square at the bottom right. Use the example below to understand a decision. Identify the playing area and the controls you need. Check the relevant rule before repeating a move.
A small practice goal
Watch the feedback after an action. A message can explain whether the input was accepted or whether a rule needs attention. Keep the objective visible.
The purpose of your moves
Arrange 1 to 15 in reading order with the empty square at the bottom right. Use the instructions to see which actions move you towards it. Start with a deliberate move.
How a round unfolds
- Select a tile directly beside the empty square.
- The tile slides into the gap; diagonal moves are not allowed.
- Use Undo to step back one move.
- Finish the ordered board, or choose New puzzle.
How to interact with the game
Use the on-screen controls with a mouse or touch. A careful first action helps you become familiar with the layout. Read the example below alongside these instructions.
An example to follow
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. Look for the relevant detail.
Keep this in mind
A distant tile cannot jump across other tiles. Take a moment to reassess the position before continuing. Compare the worked example with your own position. Use the reasoning, not an answer copied from a different board.
Game-specific help
What is the goal of 15 Puzzle?
The key detail is this: Arrange 1 to 15 in reading order with the empty square at the bottom right.
While learning, how do I control 15 Puzzle?
The key detail is this: Use the on-screen controls with a mouse or touch.
As a new player, 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.
As a new player, what should I watch out for in 15 Puzzle?
The key detail is this: A distant tile cannot jump across other tiles.
While learning, what format does 15 Puzzle offer?
Here is the relevant explanation: Play using the solo mode shown on this page. Read the controls before starting a new round.
While reading the Guide, which play mode does 15 Puzzle use?
The key detail is this: The mode on this page is Solo. Same-device play uses one screen; this game library does not provide internet matchmaking.
When I return, where should I start with 15 Puzzle?
Keep this in mind: 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.
For my first round, how can I find 15 Puzzle again?
For clarity: Use the Games list or save this game page in your browser bookmarks. The Guide is linked from the playing page.
For this browser game, how do I report an issue with 15 Puzzle?
The key detail is this: 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.