Who it is for
Everything we know about slide puzzles, organised by what you want to do — play a particular size, solve one, turn a photo into one, or read the maths behind why some boards are impossible.
What slide puzzles actually train cognitively, what brain-training claims to treat with caution, and how they compare to sudoku and chess.
How to find a puzzle game without ads: what 'no ads' means in the fine print, IAP vs ad-funded apps, and the App Store signals to read first.
Why slide puzzles suit adults: short games, no skill ceiling, no notifications, no streaks. How to pick one without manipulative casual-game patterns.
Slide puzzles for children — cognitive benefits, board sizes by age (3×3 from 4–5, 4×4 from 7+), and what to look for in a kid-safe app.
Where slide puzzles fit in the wider logic puzzle genre: comparison with sudoku, nonograms, kakuro, klotski, and chess puzzles.