The Great Circle Challenge is made up of 15 intersecting Great Circles. A Great Circle is like the equator, in that it separates a sphere into 2 equal spaces. The intersecting Great Circles create 120 spherical right triangles. The completed Great Circle Puzzle becomes a work of art you can display anywhere! Educational and fascinating!! In this challenging puzzle, multitudes of possibilities can easily lead you astray—do you think you can stay on the right path?? If you just can’t stand the heat there are step by step instructions that will help you complete this work of art that you can display anywhere. There are only three unique solutions to the puzzle, see an interesting mathematical study at Ítalo José Déjter’s web page.
