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A Cryptarithm in which the letters used to represent distinct Digits are derived from related words or meaningful phrases. The term was coined by Hunter in 1955 (Madachy 1979, p. 178).


Brooke, M. One Hundred & Fifty Puzzles in Crypt-Arithmetic. New York: Dover, 1963.

Hunter, J. A. H. and Madachy, J. S. ``Alphametics and the Like.'' Ch. 9 in Mathematical Diversions. New York: Dover, pp. 90-95, 1975.

Madachy, J. S. ``Alphametics.'' Ch. 7 in Madachy's Mathematical Recreations. New York: Dover, pp. 178-200, 1979.

© 1996-9 Eric W. Weisstein