A
dominoes-like game invented by
Ed Pegg, based on a pair of
geometric shapes he discovered. These shapes, two
equilateral but not
equiangular pentagons, are each divided into a
triangle and a
quadrilateral by a line roughly across the
middle, and each side contains a single spot of some
color. The shapes have the names
kay and
vek,
mnemonic for
concave and
convex.
The two shapes combine to form many beautifully chaotic-looking patterns. Ed has yet to determine if the shapes tile the plane, periodically or not.
Ed has invented several games that can be played with the tiles. For more information, including rules for the games, visit his website, www.mathpuzzle.com.