About Sliding Puzzle (15 Puzzle)
The 15 Puzzle is a classic sliding tile brain teaser. Fifteen numbered tiles sit in a 4×4 grid with one empty space. Slide tiles into the gap to rearrange them into order from 1 to 15. It is simple to learn but surprisingly tricky to solve in few moves.
How to play
- Tap a tile next to the empty space to slide it.
- Keep sliding tiles to arrange them 1 to 15.
- Solve the puzzle in as few moves as you can.
Frequently Asked Questions
Is the puzzle always solvable?
Yes — it is shuffled by making random legal slides from the solved state, so a solution always exists.
How do I solve a sliding puzzle?
Work row by row and corner by corner, placing tiles in order while keeping the rest movable.
Can I reshuffle?
Yes, tap "Shuffle" for a fresh arrangement any time.
Is the Sliding Puzzle free?
Yes, it is completely free with no sign-up.