🔢 3×3 · 4×4 · 5×5

Sliding Puzzle

Slide the numbered tiles back into order using the one empty space. Simple to understand, stubborn to finish — and every shuffle is checked to be solvable.

Size 4×4

Moves 0

Time 0:00

Tap a tile beside the gap to slide it

How to Play

👆

Slide a Tile

Tap any tile next to the empty space and it slides across.

↔️

Push a Row

Tap further down the same row or column and the whole line shifts.

🔢

Put Them in Order

Finish with 1 at the top left, counting across, gap at the bottom right.

🟢

Green Means Done

A tile turns green once it is sitting in its finished position.

✅

Always Solvable

Half of all shuffles cannot be solved. Those are rejected before you see them.

🏅

Fewest Moves

Your best time and fewest moves are kept for each size.