Sliding Puzzle — Free Online 15 Puzzle Game

A free sliding puzzle game with 3x3, 4x4, and 5x5 grid sizes. Arrange the numbered tiles in order by sliding them into the empty space. Features a move counter, timer, best score tracking, and smooth animations.

How to Play

1
Choose a grid size

Select 3×3 for beginners, 4×4 for the classic 15-puzzle, or 5×5 for a challenge.

2
Slide the tiles

Click or tap a tile adjacent to the empty space to slide it. You can also use arrow keys on desktop.

3
Arrange in order

Place all numbered tiles in ascending order from left to right, top to bottom, with the empty space in the bottom-right corner.

4
Beat your record

Try to solve the puzzle in fewer moves and less time. Your best scores are saved for each grid size.

Arrange numbered tiles by sliding them into the empty space

0Moves
0:00Time
—Best

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Features

Three grid sizes: 3×3 (8-puzzle), 4×4 (15-puzzle), and 5×5 (24-puzzle) Move counter and timer to track your performance Guaranteed solvable shuffles — every puzzle has a solution Keyboard and touch controls for desktop and mobile

Frequently Asked Questions

Is every shuffled puzzle solvable?

Yes. The game uses an algorithm that guarantees every shuffle produces a solvable configuration. You will never encounter an impossible puzzle.

What is the 15 puzzle?

The 15 puzzle is a classic sliding puzzle invented in the 1870s. It consists of 15 numbered tiles in a 4×4 grid with one empty space. The goal is to arrange the tiles in numerical order by sliding them.

What is a good number of moves for the 15 puzzle?

The optimal solution for a random 15-puzzle averages about 52 moves. Experienced players can typically solve it in 80-120 moves. Under 100 moves is considered very good.

Does it work on mobile?

Yes. The game supports tap controls on touchscreens. Simply tap any tile adjacent to the empty space to slide it. The layout adapts to any screen size.

💡 Want us to improve this tool just for you?

We can — and it's free! Just send us a quick message with your idea. If you'd like to discuss it in detail, leave your email and we'll get back to you. You can stay anonymous.

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Who is this tool for?
🎮 Gamers 🎓 Students
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