'On no account should any reader, not already hooked, so much as glance at a
Sudoku. That way lies addiction and madness. Sudokus are to the first decade of
the 21st century what Rubik's Cube was to the 1970s. They are an obssession that
divides the population' Tom Utley, " Daily Telegraph "
Sudoku is a hybrid: its name derives from Japanese (loosely translated it means
'number in an allotted place') and its form can be traced back to the magic
squares invented in 18th century Switzerland. The result is a numerical
brainteaser that is fiendish, compulsive, and, in the simplicity of its