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Triangular Numbers, Gaussian Integers, and KenKen

Author: Watkins, John J.

Source: The College Mathematics Journal, Volume 43, Number 1, January 2012 , pp. 37-42(6)

Publisher: Mathematical Association of America

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Abstract:

Latin squares form the basis for the recreational puzzles sudoku and KenKen. In this article we show how useful several ideas from number theory are in solving a KenKen puzzle. For example, the simple notion of triangular number is surprisingly effective. We also introduce a variation of KenKen that uses the Gaussian integers in order to illustrate the concept of unique factorization.

Document Type: Research Article

DOI: http://dx.doi.org/10.4169/college.math.j.43.1.037

Publication date: January 1, 2012

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