SUDOKU ONLINE!

So you thought Sudoku came from the Land of the Rising Sun ...

The Sudoku story began in 1783 when Leonhard Euler, a Swiss mathematician, devised 'Latin Squares', which he described as 'a new kind of magic squares'. Euler had come up with a grid in which every number or sym bol appears once in each row or column. More than two centuries later, the difference for Sudoku players is that the grid is subdivided into blocks of nine.

She added: 'I like the puzzle a lot. It's accessible to most people and that's part of the charm. Although some are more difficult than others, the concept is easy to grasp and it doesn't take for ever to solve. There is a universality to it and it becomes addictive.'