The Times Ultimate Killer Su Doku Book 15 200 of the deadliest Su Doku puzzles
The Times Ultimate Killer Su Doku Book 15 200 of the deadliest Su Doku puzzles
- ISBN 13:
9780008535872
- ISBN 10:
0008535876
- Format: Paperback
- Copyright: 04/01/2023
- Publisher: Times Books UK
List Price $11.72 Save
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Summary
Not for the faint-hearted. The puzzles use the same 9x9 grid as a regular Su Doku, but have an extra mathematical element that multiplies the challenge. The aim is not only to complete every row, column and cube so that it contains the digits 1 to 9, but also to make sure that the outlined sections, called cages, add up to the number given in each cage.
Warning: Not suitable for amateur puzzlers!