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World's Hardest Killer Sudoku: Is Your IQ Good Enough to Solve These INSANE Puzzles?
Paperback
Series: Killer Sudoku: The Master 45-Sum Architecture, Book 1
ISBN13: 9781790247530
Publisher: Independently Published
Published: Nov 23 2018
Pages: 114
Weight: 0.36
Height: 0.24 Width: 6.00 Depth: 9.00
Language: English
This book delivers exactly what the title promises: 100 Killer Sudoku puzzles of the absolute hardest difficulty. No easy puzzles, no medium fillers - just IQ-level and INSANE-level challenges, one per page.
Killer Sudoku adds cage totals to standard Sudoku rules. At this level, you will need:
- Rule of 45 - the fundamental Killer technique
- Innies and Outies - deducing cell values from cage math
- Cage splitting and merging - advanced logical steps
- Naked and hidden sets - from classical Sudoku applied to Killer
- 100 Killer Sudoku puzzles - IQ and INSANE levels only
- One puzzle per page - 6 x 9 inch format
- Thick paper, bold font, all solutions included
By DJAPE - PhD in Computer Science, Washington Post puzzle contributor since 2006, renowned for publishing the world's most challenging Killer Sudoku collections. A perfect gift for the Killer Sudoku solver who thinks they have seen it all - they haven't.
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