This time I could work out magic squares and invent chess problems.

In 1870, Scott developed a method to construct magic squares.

The result will thus not be a true magic square:

He also did work in number theory and found a method of constructing magic squares.

"It could be the hidden cross of a magic square."

The figure below shows the largest magic square studied in the contest.

A striking example can be seen in the 10th century al-Antaakii magic square.

Here the magic square has returned to its aqueuous roots.

Twenty-eight is the ninth and last number in early Indian magic square of order 3.

They contrast with magic squares where each sum is the same.