Most Perfect and Semi Magic Squares


Most perfect magic squares
When a magic square is called most-perfect it fulfills three criteria (square on the left). To start off, any 2 by 2 square within the magic squares has its numbers equate to the same number (magic constant of 2 by 2 squares inside a most-perfect magic square). Secondly, any 2 numbers spaced n/2 apart from each other on a diagonal line (with wrapping around (pandiagonal magic square)) will equal to the same amount. Last of all, it has to be a double even magic square (order 4n, with n being 1,2,...).

Semi magic squares
A semi magic square shares all the same properties as a regular magic square besides the fact that it’s diagonals do not add up to the magic constant (rows and columns do equate correctly). There are a total of 8 semi magic squares of order 3 for example (squares on the right).