Sliding Puzzle

Sliding Puzzle

The classic 15-tile sliding puzzle. Slide numbered tiles one at a time into the empty space to restore them to order. Choose from 3x3 (8 tiles), 4x4 (15 tiles), or the fiendish 5x5 (24 tiles). Every puzzle is guaranteed solvable. Beat your best move count and earn 3 stars!

How to Play

How to Play:

  • Click or tap any tile next to the empty space to slide it in
  • Rearrange all tiles into numerical order, left-to-right, top-to-bottom
  • The empty space should end up in the bottom-right corner
  • Use the Shuffle button to start a new game at any time

Controls:

  • Click / Tap: slide an adjacent tile
  • Arrow Keys: move the blank space (desktop)
  • Swipe: slide tiles on mobile

Grid Sizes:

  • 3x3 — 8 tiles, great for beginners
  • 4x4 — classic 15-puzzle, moderate difficulty
  • 5x5 — 24 tiles, expert challenge

Rating:

  • 3 Stars: solve at or under par moves
  • 2 Stars: solve within 1.75x par
  • 1 Star: any completion

Frequently Asked Questions

How do you play Sliding Puzzle?

Click or tap any numbered tile next to the empty space to slide it in. Repeat until all tiles are in numerical order from 1 to 15 (for the 4x4 grid), with the empty space in the bottom-right corner. You can also use arrow keys on desktop or swipe on mobile.

Are all Sliding Puzzle shuffles solvable?

Yes. Every shuffle is mathematically guaranteed to be solvable. The game uses a Fisher-Yates shuffle followed by an inversion-parity check to ensure every configuration has a solution.

What grid sizes are available?

Three sizes: 3x3 (8 tiles, beginner), 4x4 (15 tiles, classic), and 5x5 (24 tiles, expert). The 5x5 is extremely challenging — most random positions require 100+ moves to solve.

Is Sliding Puzzle free to play?

Yes, completely free with no downloads or registration. Works on desktop and mobile browsers.

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