Drexel dragonThe Math Forum

The Math Forum Internet Mathematics Library

God's Number is 20

Library Home || Full Table of Contents || Library Help

Visit this site: http://www.cube20.org/

Author:Tomas Rokicki
Description: An outline explaining how every Rubik's Cube™ permutation can be solved in twenty moves or fewer, established algorithmically by machine proof in July, 2010. Read "How did we solve all 43,252,003,274,489,856,000 positions of the cube?" and "What are the Hardest Positions?" Also, watch animations of move-by-move solutions, and see a table of distributions of solutions and a chronology of "God's number" -- the minimum number of moves required by even an omnipotent power.

Levels: High School (9-12), College, Research
Languages: English
Resource Types: Manipulatives, Recreations
Math Topics: Algorithms

[Privacy Policy] [Terms of Use]

Home || The Math Library || Quick Reference || Search || Help

© 1994- The Math Forum at NCTM. All rights reserved.