Sixteen

A sliding puzzle with no gap: shift whole rows and columns round until 1 to 16 are back in order.

A little time to think

Shift rows and columns until the numbers are in order.

Choose today’s puzzle or explore a fresh board. No timer. Undo whenever you like.

Your board saves in this browser.

Your goal

Put the tiles in order, 1–4 on the top row and 13–16 on the bottom. There is no empty space. Each move shifts a whole row or column one step, and the tile pushed off one edge reappears at the other end.

How to play

Tap an arrow at the edge to shift that row or column. Turn on Mark mode to shift it the opposite way. Keyboard: arrows move the marker around the edge and Enter shifts. Type changes the size or sets a short shuffle.

Tips

Fill the top row first, then the next row, using columns to bring tiles up without disturbing finished rows.
For the last row, shift a column down, the row across, the column back up and the row back. Three tiles cycle and the rest stay put.
On a short shuffle, try to answer with exactly as many moves as the shuffle used.

Use the board’s Type menu to choose a size or difficulty. Undo and Redo let you explore. Solve reveals the answer when you choose it.

Saves and credits

Moves save locally. Game → Download save file creates a backup; Upload save file restores it. Clearing browser data removes local saves.

Original puzzle by Simon Tatham and contributors. Leaf Arcade adds presentation, touch controls and local persistence.

MIT license · Source · Full manual