In the figure, place the numbers 1-13 at the locations a-m such that
each of the six sides and each of the six lines through the center has the same sum
(all 12 sums equal.) To aid in comparisons, when submitting answers, minimize 'a', then 'b'. Solve for '1' both at 'a' and 'b'. |
a b c l d k m e j f i h g |

Solution

Mail to Ken