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Collins Su Doku Grandmaster Author: Collins

ISBN: 9780007463510 Format: Paperback Number Of Pages: 128 Published: 13 September 2012 Country of Publication: GB Dimensions (cm): 15.0 x 10.0 x 1.0 Description: Brace yourself!

This book contains some of the most difficult So Doku puzzles ever created on earth, puzzles so hard they have never been set down in print before.

Compiled by Andrew Stuart, a top British puzzle maker, this collection of Su Doku will test the best. Every puzzle can be solved through logical deduction alone. But they go well beyond the level of the most difficult of daily puzzles and will challenge your solving abilities to breaking point.
40 tough puzzles equivalent to the fiendish puzzles found in newspaper
40 diabolical Su Doku that will make you tear your hair out.
21 extreme' puzzles, the like of which has never been seen

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