Weekly Tournament

Everyone in the world gets the same sliding puzzle this week. Solve it fastest to top the board.

How to play

Slide tiles into the empty space to put 1–15 in order.
Your time starts with your first move.
Submit your time with a nickname. You can replay to beat your best; only your best counts.
The board resets every Monday at 00:00 UTC.

Is every puzzle solvable?

Yes. The puzzle is generated by shuffling from the solved position, so it always has a solution.