Pigeonhole Matching · The Mitten Box
A box of red and blue mittens, in the dark. How many to be sure of a matching pair?
About the Puzzle
A box of red and blue mittens, in the dark. How many to be sure of a matching pair?
4 Puzzles
Frequently asked questions
Pigeonhole Matching is tagged for Grades K-12 — puzzles within it get harder as your child improves.
4 Pigeonhole Matching puzzles, each a fresh layout of the same rules.
No — Pigeonhole Matching plays directly in the browser, right on this page. No login, no download.
Present a real-world scenario and a question that can't be solved by direct calculation — the child has to find the underlying structure or trick (e.g. realizing every handshake gets counted twice). Builds mathematical insight — seeing why something must be true — rather than computation speed.
No — every Pigeonhole Matching puzzle is free to play, no sign-up needed.