A new collection of previously unpublished Fiendish Su Doku puzzles with the added bonus of 30 Super Fiendish puzzles. Perfect for the advanced solver in need of a constant supply of ultra-difficult puzzles. Guaranteed to provide hours of absorbing, brain-stretching entertainment. The puzzles in this collection are of the highest quality and supplied by Sudoku Syndication, the Sudoku suppliers to The Times newspaper. Since the first...
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Teen & Young Adult