Matchstick puzzles are rearrangement puzzles in which a number of matchsticks are arranged as squares, rectangles or triangles.

The problem to solve is usually formulated as : move n (some specified number) matchsticks to make m (another specified number) squares (or triangles, or rectangles,or circles)
).

However some of the puzzles require lateral thinking

Lateral thinking

Lateral thinking is solving problems through an indirect and creative approach, using reasoning that is not immediately obvious and involving ideas that may not be obtainable by using only traditional step-by-step logic...

and are not just about making geometric shapes.

External links

• More than 25 Matchsticks Puzzles
• Twelve Matchsticks Area Puzzle
• Other Matchstick Puzzles
• More Matchsticks