Sliding Puzzle

Play the classic 15 Sliding Puzzle game online for free. Slide numbered tiles to arrange them in order. Challenge your mind with this timeless logic puzzle. No downloads needed.

Moves 0
Time 00:00
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How to Play

  1. The goal is to arrange the numbered tiles in order from 1 to 15, with the empty space in the bottom-right corner.
  2. Click on a tile adjacent to the empty space to slide it into the empty spot.
  3. Use the arrow keys on your keyboard to move tiles up, down, left, or right.

About Sliding Puzzle

The 15 Puzzle (also called Sliding Puzzle, Gem Puzzle, or Boss Puzzle) is a classic sliding block puzzle invented in the 1870s. It consists of a 4×4 grid with 15 numbered square tiles and one empty space. The objective is to rearrange the tiles into numerical order by sliding them into the empty space. Not all starting positions are solvable — our game only generates solvable puzzles.

Features

  • Classic 4×4 grid with 15 numbered tiles
  • Only solvable puzzles are generated — every game is winnable
  • Move counter and timer to track your progress
  • Best score tracking with local storage
  • Keyboard arrow key support for desktop
  • Touch-friendly for mobile devices

Frequently Asked Questions

Is every puzzle solvable?
Not all random arrangements of the 15 Puzzle are solvable. Our game uses an algorithm that only generates solvable starting positions, so every puzzle you play can be solved.
What is the world record for solving the 15 Puzzle?
The fastest known time to solve a randomly generated 15 Puzzle is around 3 seconds. For computer algorithms, the A* search algorithm can solve any solvable puzzle in the minimum number of moves.
Can I play on my phone?
Yes! Our Sliding Puzzle is fully responsive and works great on mobile phones, tablets, and desktop computers. Just tap the tiles to slide them.