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10/16/2007

November 10–November 16, 2009

Problem

Can you find distinct positive integers A, B, C, ..., I so that the diagram below is a magic star? That is, the sum of the numbers along each line is the same.

magic star

Solution

here

List of solvers

Marina Meila (faculty); Congpa You, Lloyd Sakazaki, Mukund Tirumalai, Isaac Abraham, Mike Goodman, Qiyuan Wei, Lincoln Atkinson (outside).

Mike Goodman wins the prize!