\begin{definition}[Definition:Parker Square]
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.
{{NamedforDef|Matthew Thomas Parker|cat = Parker}}
\end{definition}