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| Sudoku Tip |
Many people incorrectly spell Sudoku as
"Suduko" or "Sudoko".
The correct English spelling is Sudoku
- which means "single number" in
Japanese
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Killer Sudoku (also known as Samunamupure) is based on normal 9 X 9 Sudokus with the usual rules.
However, there is one additional rule - there are dotted regions (sometimes called "cages") superimposed
on the Sudoku grid, and the numbers in each region must add up to the
total to the smaller number marked in the top left of the region.
For example - if there is a dotted region that is two cells across and one down
and marked with a 6, you can deduce the cells must either contain a 5 and 1 (or vice-versa),
or a 4 and 2 (or vice-versa) - they cells can not contain a 3 and 3 because of
the Sudoku rule that you can't have the same number twice in the same row.
Killer Sudokus can be very tough to solve - and are an excellent new
challenge if you're board with solving classic Sudoku.
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By Sudoku Syndication
HarperCollins UK
Paperback (256 pages)
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Click Here | Product Description:
This fifth and toughest Times Killer Su Doku book will test readers' skills to the limit, adding the challenge of arithmetic and taking Su Doku to a new and even deadlier level of difficulty. The puzzles use the same 9x9 grid as Su Doku but with 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. With 150 new Tough and Deadly Killer Su Doku puzzles, there is no chance to ease yourself in with easy puzzles. For those who like to live dangerously and push beyond their mental comfort zone, steel yourself for the toughest collection yet. |
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By Dj Ape
CreateSpace
Paperback (90 pages)
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Same format, same difficulties, NEW puzzles! Another sequel in the Killer Sudoku series of books from DJAPE. Brand new puzzles, with the same intensity and intricacy as the old ones. There are no trivial puzzles in this book - the accent is again on moderate and difficult puzzles. Contents: - 100 Killer Sudoku - 10 Killer Sudoku X - 10 Killer Sudoku with diagonal cages - 30 ZERO Killer Sudoku (blank cages) |
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By Collins Uk Staff
Harper Paperbacks
Released: 2006-01-24
Paperback (208 pages)
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Click Here | - ISBN13: 9780061126475
- Notes: Brand New from Publisher. No Remainder Mark.
Product Description:
Just when you thought it was safe to pick up a pencil Killer Su Doku is based on the original Su Doku grid, with the same rules and numbers—1 to 9—but with an added deadly twist. This time there is an element of arithmetic involved and there are few, if any, clues. The aim is to not only complete every row, column, and cube so that it contains the digits 1 to 9, but to also fill in the outlined cubes so they add up to the same number. Hints to solve the puzzle are hidden in the joined squares where only one combination of numbers applies. In the case of joined squares, if the printed number is 3, it should be 1 and 2 that go into the squares. Likewise, in the case of three joined squares, if the printed number is 6, the only combination possible is 1, 2, and 3. To add one final fiendish level, each puzzle also has a time worked out by its Japanese creators so you can try to beat the clock. |
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Virgin Books
Released: 2010-02-16
Paperback (144 pages)
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Click Here | - ISBN13: 9780753511589
- Notes: Brand New from Publisher. No Remainder Mark.
Product Description:
If you thought Sudoku was difficult wait until you try Killer Sudoku! The next step up from normal Sudoku, these killer puzzles use the same grid as Sudoku and require the reader to fill in the numbers 1 to 9 as before. But this time the numbers in the outlined boxes must also all add up to a specific number. With five difficulty ratings, from 'very easy' to 'deadly', the 100 brand-new Killer Sudoku puzzles in this book will provide a challenge to the most ardent Sudoku addict. |
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By Dr Gareth Moore
CreateSpace
Paperback (72 pages)
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Sudoku no longer a challenge? Then add a Killer twist! Place 1 to 9 into each of the rows, columns and boxes, whilst obeying the dashed-line shape totals. It's as easy as 1 + 2 + 3. This book features 100 top-quality puzzles from Dr Gareth Moore, author of over 20 best selling international puzzle and brain-training titles from a wide range of publishers. |
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By Steve Arons
Plume
Paperback (208 pages)
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Click Here | - ISBN13: 9780452287952
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By Dj Ape
CreateSpace
Paperback (90 pages)
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3rd book in the series, with all NEW puzzles in the same format and same difficulties! Another sequel in the Killer Sudoku series of books from DJAPE. Brand new puzzles, with the same intensity and intricacy as the old ones. There are no trivial puzzles in this book - the accent is again on moderate and difficult puzzles. Contents: - 100 Killer Sudoku - 10 Killer Sudoku X - 10 Killer Sudoku with diagonal cages - 30 ZERO Killer Sudoku (blank cages) |
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By D. J. Ape
Ronin Publishing
Paperback (144 pages)
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Click Here | - ISBN13: 9781579510350
- Notes: Brand New from Publisher. No Remainder Mark.
Product Description:
Introduced by The Times, the British publisher who pioneered the sudoku craze, the “killer sudoku” poses a double challenge: the basic rules of sudoku still apply, but puzzles initially have no numbers showing. All that is known is the sum of the numbers inside irregular boxes, called cages, in which the classic 9 x 9 sudoku grid is subdivided. Killer Sudoku contains 101 of these brain-busters grouped into six levels of difficulty. The introduction explains the basic techniques needed to solve these new versions of the world's most popular number puzzle. |
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By Dj Ape
CreateSpace
Paperback (112 pages)
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A new and very special collection of Killer Sudoku puzzles by Djape, containing a variety of puzzles, including some types that have never been published before: Clueless, Zero Killer, Killer X, Odd/Even Zero Killer, Non-consecutive Killer, TwoDoku, Butterfly, Samurai... All in all, 101 puzzle that will surely kill your time! |
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By Sudoku Syndication
HarperCollins UK
Paperback (320 pages)
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Click Here | - ISBN13: 9780007275656
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Product Description:
Fans of Su Doku have an ever increasing desire for trickier puzzles and Killer Su Doku should satiate their appetites as it poses an even greater challenge than the Fiendish Su Doku puzzles. It takes the number placing puzzle to the next level by adding an element of arithmetic and one cannot rely on logic alone. The puzzles use the same 9x9 grid but there is a double test. The aim is not only to complete every row, column, and cube so that it contains the digits 1–9, the numbers within a second dotted-line grid have to add up to a specific total. Included are some Gentle and Moderate puzzles to serve as a warm-up but the emphasis is on the Tricky, Tough, and Deadly levels. |
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6: Killer Sudoku