Magic Square/Examples/Order 3

Definition
Order $3$ magic square:
 * $\begin{array}{|c|c|c|}

\hline 2 & 7 & 6 \\ \hline 9 & 5 & 1 \\ \hline 4 & 3 & 8 \\ \hline \end{array}$

Also see

 * Smallest Magic Square is of Order 3
 * Magic Sum of Order 3 Magic Square