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, ...

Magic Squares: A touch of mysticism and a lot of brain-challenging fun! By Marcel Danesi, Ph.D. in Brain Workout One of the most fascinating number games of all time is the magic square. In its ...

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?

“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 ...

This magic square has been known since ancient times. Each row, column and diagonal of three numbers adds to the same magic constant, 15. There is, however, a different type of 3×3 magic square, in ...

Web3 app store Magic Square is dedicating $66 million worth of its native SQR token for grants to projects listed on its platform. The Ecosystem Grant Program consists of 120 million SQR, equivalent ...