The first Times Su Doku book sparked a worldwide publishing phenomenon - sales have topped 4 million copies worldwide since March 2005.
A fifth collection of 100 previously unpublished puzzles from the man who started it all, Wayne Gould. Four levels of difficulty - easy, mild, difficult and fiendish - to challenge, stimulate and divert all Su Doku addicts. The Times Su Doku remains the original, the best and the market leader.
Wayne Gould is the acknowledged Su Doku Master. Since The Times first published the puzzle in November 2004 his puzzles have been seen as the standard to which every other compiler aspires. Wayne Gould lives in New Hampshire, Hong Kong and New Zealand.