Slide-A-Tile

How to play

1. Pick a grid size. The board is shuffled into a solvable arrangement.
2. Click (or tap) any tile in the same row or column as the empty space to slide it over.
3. You can also use the arrow keys: each arrow slides a tile into the empty cell from that direction.
4. Arrange the tiles 1 → N with the blank in the bottom-right corner.
5. Submit your score to the leaderboard. Best scores rank by fewest moves, then fastest time.

Tips

• Solve the top row and left column first, then work down a smaller sub-puzzle.
• The 3 × 3 board is great for warming up. The 5 × 5 board is unforgiving.