“In my younger days, having once some leisure which I still think I might have employed more usefully, I had amused myself in making . . . magic squares,” Benjamin Franklin (1706–1790) wrote in a ...

Only in the last five years has sudoku been capturing people’s recreational time. But 250 years ago, Benjamin Franklin was developing fascinating puzzles with principles quite similar to sudoku, ...

A magic square is an arrangement of numbers where all rows, columns and diagonals add up to the same number, called the magic constant. Can you complete this square by filling in the missing numbers?

Greetings puzzlers near and far. When I say "far," I mean far because this week's winner is Sugiyama from Tokyo Japan who gets the Puzzle Of The Week via Wired Japan! Sugiyama figured out one of the ...

Math Riddles are so challenging, but that makes them worthwhile to solve. Math riddles are logical problems that require strong analytical abilities, high IQ, knowledge of math concepts, and good ...

At a meeting of the Mathematical Club last night H. G. Leach 1G. spoke on "Magic Squares." Little literature, he said, has been published on the subject. The best work, perhaps, appeared in France in ...