Skip to content
  • Podcast
  • Microcast
  • Books
  • Context
  • Search
    • Podcast Programs
      • Chapters
      • Engaging the World
      • How + Why
      • Medium History
      • The Fire Problem
      • Without...
    • Podcast Series
      • Adjust Accordingly
      • Eichler Sessions
      • Environmental Justice
      • Ethnic Studies
      • Gender and Sexuality
      • Love of Food
      • Placing Equity into Practice
      • Science + Technology
      • Significance of Race
      • Sounds + Stories
      • The Grammar
    • Book Collections
      • Arts
      • Biography + Memoir
      • Business + Education
      • Children
      • Comics + Graphic Novels
      • Cooking
      • History
      • Poetry
      • Science + Technology
      • Young Adult
    • Book Lists
      • Children Bestsellers
      • Fiction Bestsellers
      • Nonfiction Bestsellers
      • Book Awards
      • Indie Next List
      • Indie Next List for Kids
  • Sign in
0

Past ForwardPast Forward

  • Podcast
  • Microcast
  • Books
  • Context
  • Search
    • Podcast Programs
      • Chapters
      • Engaging the World
      • How + Why
      • Medium History
      • The Fire Problem
      • Without...
    • Podcast Series
      • Adjust Accordingly
      • Eichler Sessions
      • Environmental Justice
      • Ethnic Studies
      • Gender and Sexuality
      • Love of Food
      • Placing Equity into Practice
      • Science + Technology
      • Significance of Race
      • Sounds + Stories
      • The Grammar
    • Book Collections
      • Arts
      • Biography + Memoir
      • Business + Education
      • Children
      • Comics + Graphic Novels
      • Cooking
      • History
      • Poetry
      • Science + Technology
      • Young Adult
    • Book Lists
      • Children Bestsellers
      • Fiction Bestsellers
      • Nonfiction Bestsellers
      • Book Awards
      • Indie Next List
      • Indie Next List for Kids

Your cart

Infernal Triangles by Dore, John

Infernal Triangles

Infernal Triangles

John Dore

$11.99

$10.19

 
 
This item is a recurring or deferred purchase. By continuing, I agree to the cancellation policy and authorize you to charge my payment method at the prices, frequency and dates listed on this page until my order is fulfilled or I cancel, if permitted.
The definition of a great puzzle is simplicity and yet that it has many permutations. John Dore has developed puzzles based on combinations of 4 colours in sectored triangles. Building on the work of great recreational mathematicians of the past, Infernal Triangles presents the puzzler with a set of 24 triangles. Readers can cut the triangles printed in the book, or download them free, to make sets. The challenges presented are to use those sets to match the shapes presented in the book. Some are simple, some are not. All can be made with the set of 24 triangles provided--and often that's the challenge!

Binding Type: Paperback
Publisher: Tarquin Group
Published: 05/31/2023
ISBN: 9781907550072
Pages: 64

Mission

Past Forward is a public service dedicated to educational accessibility.

Podcast

Listen to episodes on our website, Apple, Spotify, or wherever you podcast.

Books

Search millions of discounted books with next business day shipping in the US.

Information

To learn more, please visit Context, Disclaimers, Policies, Terms, and Privacy Choices.

© 2014-2025 Past Forward