Arrange tiles 1–15 left-to-right, top-to-bottom with the blank in the bottom-right corner.

Can every shuffle be solved?

No — exactly half of all permutations are unsolvable. This game only generates solvable ones.

Sliding Puzzle — 15-Puzzle Game

Play the classic 15-puzzle: slide tiles into order. Solvable shuffles only.

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How to play

Click any tile adjacent to the blank space to slide it into the gap.
Arrange tiles 1–15 in order left-to-right, top-to-bottom, blank in bottom-right.
Use arrow keys to slide tiles: the arrow points the direction the tile moves.
Click 'New Game' to generate a fresh, guaranteed-solvable shuffle.

Slide tiles into numerical order (1–15). Use arrow keys or click tiles. Only solvable positions are generated.

Frequently asked questions

How do I win?: Arrange tiles 1–15 left-to-right, top-to-bottom with the blank in the bottom-right corner.
Can every shuffle be solved?: No — exactly half of all permutations are unsolvable. This game only generates solvable ones.