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Sliding Puzzle — 8 and 15 Puzzle for Kids

Slide the tiles to put the numbers back in order. 3×3 for beginners, 4×4 for puzzle masters.

Why this game helps

Sliding puzzles train planning and spatial reasoning: to move one tile into place, children must think several moves ahead without breaking what is already solved. A great tip: solve the top row first, then the left column.

🧩 About this game

The sliding puzzle, invented in the 1870s, is still one of the best brain-teasers for children: one empty square, numbered tiles in a mess, and the goal of putting them back in order. It trains planning — to move one tile into place you must think several moves ahead without undoing what is already solved. The 3×3 board (the 8-puzzle) is a good start; the 4×4 (the 15-puzzle) is a real challenge, even for adults. Every board is mixed by legal moves only, so it can always be solved.

Best for ages 7–99

Tips for parents and teachers

Frequently asked questions

Is every puzzle solvable?

Yes. The tiles are mixed with real slides from the solved position, so it can always be undone.

How are the stars given?

3×3: 3 stars up to 40 moves. 4×4: 3 stars up to 180 moves.

From what age?

3×3 from about 7, 4×4 from about 10 — and adults enjoy it too.

MathoKids
MathoKids

Numbers, logic and problem solving — offline and free on Google Play.

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