The ultimate test of logic, these challenging puzzles take sudoku to a whole new level. The killer sudoku is a favourite in the Telegraph newspaper and with puzzles across a range of difficulties included in the book, whether you're a seasoned expert or new to the game, you're sure to be utterly hooked.
Product code: AQWVN
Publisher: Octopus Publishing Group
Dimensions: 12.8cm x 19.8cm
Publish date: 04/02/2016
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