WIN-J PLAY Classic games
15 Puzzle · Sliding Number Puzzle
Slide each number into its place, one tile at a time. Enjoy a calm puzzle with one empty space and boards from 3×3 to 5×5.
Preparing your game…
Take a break. Resume when you are ready.
Select a tile beside the empty space. On the board, arrow keys or WASD move the empty space; Ctrl/Cmd+Z undoes one move.
Play stays in this browser. A new game, page reload or language change resets progress. Scores and input are not sent to a server.
How to play
- Choose a 3×3, 4×4 or 5×5 board. Every puzzle is shuffled by legal moves from the solved arrangement, so it can be solved.
- Select a tile directly above, below, left or right of the empty space to slide it. Arrow keys and WASD move the empty space.
- Put the numbers in order from the top left and leave the empty space at the bottom right. See how many moves and how much time you need.
Good to know
Try completing the top row and left column first. Undo reverses your last move and subtracts one from the move count.
Restart returns to the same arrangement; New game creates another. Changing board size or language, or reloading the page, clears your progress.
Play without signing in or submitting a score.