Can I play this myself?

It runs in a self-playing loop rather than an interactive mode.

Does it always find a solution?

Yes — every shuffle only uses valid moves, so it is always solvable.

No — it is a pure visual animation.

Yes — free, no download, in your browser.

Sliding Tile Puzzle Screensaver

The Sliding Tile Puzzle screensaver shows the classic 15-puzzle solving itself over and over, shuffling and then calmly re-solving. It is free, runs in your browser, and ESC exits.

How the Sliding Tile Puzzle screensaver works

The saver starts with a solved grid, then performs a random shuffle of valid sliding moves.

A simple solving algorithm then slides tiles back into order, one legal move at a time.

Once solved, the cycle pauses briefly before shuffling again.

Every move follows the real sliding-puzzle rules — only the tile next to the empty space can move.

A worked example

The grid shuffles into a scrambled state, then tile by tile it methodically slides back into perfect numerical order.

Settings & tips

Accent recolours the tile numbers.
Every move follows the real sliding-puzzle rules.
A calming, satisfying loop to watch.

Frequently asked questions

Can I play this myself?: It runs in a self-playing loop rather than an interactive mode.
Does it always find a solution?: Yes — every shuffle only uses valid moves, so it is always solvable.
Is a key needed?: No — it is a pure visual animation.
Is it free?: Yes — free, no download, in your browser.

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