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 ...

We are at a critical time and supporting science journalism is more important than ever. Science News and our parent organization, the Society for Science, need your help to strengthen scientific ...

Magic sudoku is a collection of 2000 logic games: sudoku and crucipixel. In sudoku the player have to fill a grid with numbers (no mathematical skill needed!), in crucipixel the player have to fill a ...

The magic square is the basis for Sudoku, pops up in Chinese legend and provides a playful way to introduce children to arithmetic. But all this time it has been concealing a more complex geometrical ...