What Is a Mechanical Puzzle? Parts, Kinds and Why They Get Hard
A mechanical puzzle is an object you solve by moving or fitting its parts. Its parts, kinds, rules and why half of a sliding tray's positions are unreachable.
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Articles about dissection puzzles
Types of Mechanical Puzzles: Slide, Jump, Pack, Cut, Match, Twist
The six types of mechanical puzzles, sorted by what your hands do: slide, jump, pack, cut and rearrange, colour-match and twist, with how to start each.
Dissection Puzzles: Cutting a Triangle Into a Square
Any polygon can be cut into any other of equal area, but how few pieces? Why four convex pieces is the record for turning a triangle into a square.
Tangram Puzzle Solutions: A Step-by-Step Method
Place the large triangles first, read the corners and flip the parallelogram. Seven pieces, their size rules and nine verified tangram solutions.