Put the numbers from 1 to 14 on the heptagon that appears on the left so that the sum of the three numbers on each edge of the heptagon is 26.
Solution
There are many solutions, here are some of them. Starting with the position marked with the letter A and writing the numbers clockwise we have:
14,1,11,2,13,5,8,6,12,4,10,7,9,3
14,2,10,3,13,4,9,5,12,6,8,7,11,1
14,2,10,4,12,1,13,5,8,7,11,6,9,3
