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Play Fifteen Puzzle Online

Slide numbered tiles into the empty space until they return to ascending row order. This original Fifteen Puzzle build includes deterministic solvable 3 by 3, classic 4 by 4, and expert 5 by 5 boards, legal-move feedback, move and misplaced-tile counters, undo, mouse, touch, and keyboard input, accessible tile labels, fullscreen play, and instant restart. Play free with no account or download.

Choose board size

Single-player puzzle

No multiplayer mode

Your turnScore 0

How to play

Slide numbered tiles into the empty space until they return to ascending row order. This original Fifteen Puzzle build includes deterministic solvable 3 by 3, classic 4 by 4, and expert 5 by 5 boards, legal-move feedback, move and misplaced-tile counters, undo, mouse, touch, and keyboard input, accessible tile labels, fullscreen play, and instant restart. Choose a difficulty, make your move, and use Restart whenever you want a fresh game.

Strategy tips

  • Only a numbered tile sharing a horizontal or vertical edge with the empty space can slide.
  • Restore ascending row order from the top-left and keep finished rows out of later cycles whenever possible.
  • Keyboard players use arrows to move focus, Space or Enter to slide, and U to undo the most recent legal move.

FAQ

Is Fifteen Puzzle free?

Yes. It is free to play in your browser.

Do I need an account?

No account or email is required.