April 4, 2011
Sudoku: Magical History of Magic Squares
Alex Bellos, Guardian
When Lee Sallows was in his 20s he moved from London to the Netherlands and dropped a lot of LSD. During one acid trip he started doodling with magic squares, a type of mathematical pursuit he had recently read about in a scientific magazine.
A magic square is a grid of numbers for which every line, column and diagonal adds up to the same number.
TAGGED: geometry, mathematics, sudoku