num_pages: 278
description: Introduces puzzles and math problems involving coincidence, ciphers, games, the I Ching, geometric figures, and paradoxes
language: English
title: Knotted Doughnuts and Other Mathematical Entertainments
titlecomplete: Knotted Doughnuts and Other Mathematical Entertainments
genres: Mathematics, Science, Nonfiction, Puzzles
ratings_count: 70
publisher: W H Freeman & Co