SLIDING PUZZLE
MOVES
0
TIME
00:00
BEST
—
How to play
Swap tiles until the numbers 1 to 15 run in order, with the empty space in the bottom-right corner. Click or tap any tile sharing a row or column with the blank — it slides that tile, and every tile between it and the gap, into place in one move. Arrow keys nudge a neighboring tile into the blank on desktop. Every game shuffles from the solved state through legal moves only, so it's always solvable. Moves and time are tracked, and your fastest solve is saved as your best.