Definition:Parker Square

Definition
The Parker square is array of dimension $3 \times 3$, whose elements are square numbers, which is almost, but not quite, a magic square:


 * $\begin{array}{|c|c|c|}

\hline 29^2 & 1^2 & 47^2 \\ \hline 41^2 & 37^2 & 1^2 \\ \hline 23^2 & 41^2 & 29^2 \\ \hline \end{array}$

Its rows, columns and main diagonal all add up to $3051$.

However, its other diagonal adds up to $4107$.

Also, there are $3$ repeated elements: $1^2$, $29^2$ and $41^2$, while the elements of a magic square are supposed to be unique.

Hence, while it is not actually a magic square, it is a near miss.