Solvers looking for the extreme mental challenge will find 120 Deadly-level killer puzzles, including, for the first time ever, 20 Extra Deadly, that really test their limits: this is the only place they'll find such a torturous collection in a single book. The Times Ultimate Killer Su Doku is not for the faint of heart. The puzzles use the same 9 x 9 grid as Su Doku but have an added mathematical challenge. The aim is not only to complete every row, column, and cube so that it contains the digits 1–9, it is also necessary to ensure that the outlined cubes add up to the same number as well. But unlike with previous books, there is no chance for solvers to ease themselves in with Easy, or even Tough puzzles: this book is the ultimate Killer Su Doku—completely deadly.
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Most Helpful Customer Reviews
3 of 3 people found the following review helpful:
5.0 out of 5 stars
rawtimes,
Amazon Verified Purchase(What's this?)
This review is from: The Times Ultimate Killer Su Doku: The Deadliest of All Killer Su Dokus (Paperback)
this is the first book of the series. it is the standard. killer sudoku is a combination of Sudoku and Kakuro. it has the rules of both. not only do all the rows, columns and subsquares have all the digits, but the cells are grouped such that each group has a sum. has become my favorite puzzle. although the book is normal paperpack size, the puzzles are as big as the larger selling competition versions. no waste of small and simple puzzles, it is a book filled with brown and black belt level. highly recommended - the whole series. best of genre
2 of 2 people found the following review helpful:
5.0 out of 5 stars
Excellent Workout,
By Dave (NYC) - See all my reviews
Amazon Verified Purchase(What's this?)
This review is from: The Times Ultimate Killer Su Doku: The Deadliest of All Killer Su Dokus (Paperback)
Having done Su Doku for some 5 years now if it's not challenging it's not worth doing for me. This book provides that challenge, and it's small size makes it a great time filler for public transportation - just don't miss your stop!
1 of 1 people found the following review helpful:
5.0 out of 5 stars
tough nut,
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This review is from: The Times Ultimate Killer Su Doku: The Deadliest of All Killer Su Dokus (Paperback)
I am glad I finally found a book that I won't finish in a week.
I would recommend this to everyone that likes a challenge!
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