Number puzzle
Sliding Puzzle
Slide the numbered tiles into the empty space and restore the board in the correct order.
Sliding Puzzle
Arrange tiles 1 through 15 in order while using as few moves as possible.
Moves
0
Time
00:00
Best Moves
--
Best Time
--:--
About Sliding Puzzle
Sliding Puzzle is a classic 15 puzzle played on a 4 x 4 board. The numbered tiles share one empty space, and every move slides one adjacent tile into that space.
How to Play
- Tap a tile next to the empty space to move it.
- Arrange the numbers from 1 to 15 in order.
- Try to solve the puzzle using as few moves as possible.
- Use Restart to retry the same puzzle or Shuffle to create a new one.
Rules
- Only tiles directly above, below, left, or right of the empty space can move.
- Invalid tile taps do not change the board or increase the move counter.
- The timer starts after the first valid move.
- The puzzle is complete when the board returns to 1 through 15 with the empty space last.
Tips
- Solve one row or small section at a time instead of chasing every tile at once.
- Use Restart when you want to practice the same shuffled layout again.
- Watch the empty space carefully; every move is really about positioning that slot.
Saving and Controls
Your best completed result is saved in this browser. The lowest move count wins; if two results use the same number of moves, the faster time is kept. You can play with mouse, touch, or arrow keys while the board is focused.