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🧩 Game area
Moves
0
Time taken
0
Fewest moves
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How to play the slide puzzle
- Choose a grid size — start at 3×3 and move up to 4×4 or 5×5 as you get comfortable.
- Click or tap a tile next to the empty space to slide it into the gap.
- Solve the top row and left column first, then work inward in bands so solved tiles never need to move again.
- Compare your move count with the optimal-path statistic and try to close the gap.
Frequently Asked Questions
How do I play the sliding puzzle (Klotski-style)?
Slide the number tiles to restore the shuffled numbers into the 1–N order.
Can I choose the difficulty?
3×3, 4×4, and other grid sizes are supported — larger grids are harder.
How do you solve a slide puzzle without scrambling earlier work?
Solve it in bands: fix the first row and column, then treat the remaining grid as a smaller puzzle. Avoid moving tiles that are already in their final position.
What does the optimal-path statistic mean?
It estimates the shortest number of moves for the shuffle, giving you a lower bound to compare your move count against.