Counting Pairs · The Handshake Puzzle
Three friends at the park, and high fives go all round.
About the Puzzle
Three friends at the park, and high fives go all round.
1 Puzzle
The Handshake Puzzle
Frequently asked questions
Counting Pairs is tagged for Grades 6-9 — puzzles within it get harder as your child improves.
1 Counting Pairs puzzle, each a fresh layout of the same rules.
No — Counting Pairs 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 Counting Pairs puzzle is free to play, no sign-up needed.