Su Doku 'the crossword without words' comes with a health warning: it's seriously addictive! Since the first puzzle appeared in The Times' T2 in 2004, the daily back page Su Doku puzzle has become a phenomenon. Thousands enter the competition each day, including former Betchley Park codebreakers and computer enthusiasts who have even created programs to solve the puzzles they cannot! This bumper book gives you 200 puzzles to test you. Perfect for those in need of a fix as well as those who have yet to discover the euphoric feeling when you get it right! And remember, you don't need to be a mathematical genius to solve these puzzles; it is simply a question of logic... 
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