The Times Big Book of Killer Su Doku - 360 Lethal Su Doku Puzzles
The ideal gift for su doku enthusiasts this Christmas. Killer Su Doku poses an even greater challenge than Fiendish Su Doku puzzles. This is a bumper collection of more than 360 puzzles for hard-core Su Doku solvers. Selected from the pages of The Times these puzzles will keep even the most eager enthusiasts entertained for hours.
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