The Virgin Book of Killer Sudoku
The Virgin Book of Killer Sudoku

Author: Virgin Books

Publisher: Random House

Published: 2006

Total Pages: 146

ISBN-13: 0753511584

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If you thought Sudoku was difficult, wait until you try Killer Sudoku! The next step up from normal Sudoku, the 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. Already hugely popular in the national press, the puzzles are a must for Sudoku fans. 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.

The 3D Sudoku Puzzle Book
The 3D Sudoku Puzzle Book

Author: Parragon

Publisher: Parragon Publishing

Published: 2010-09-01

Total Pages: 384

ISBN-13: 9781445407074

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3D Sudoku is the ultimate challenge for an fan of Sudoku puzzles. With three times as many numbers than normal Sudoku, follow the colored lines and complete the rows and boxes with the numbers 1-9. If youre a fan of Sudoku, then you will love this great new collection of over 300 ultra challenging 3D Sudoku puzzles!

Independent Book of Sudoku
Independent Book of Sudoku

Author: Hazel Norris

Publisher: Chambers Harrap Pub Limited

Published: 2005

Total Pages: 168

ISBN-13: 9780550103048

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Who would have thought that scribbling numbers into boxes could be so much fun - or so fiendishly addictive? Sudoku-mania has gripped the country. At the office and at school, on trains and on aeroplanes, at home and on holiday, we're all hooked. Satisfy your Sudoku cravings with these collections of puzzles from The Independent. Deceptively simple, Sudoku puzzles are solved using logic alone. Just complete the grid so that every row, column and 3×3 box contains the numbers 1-9.

Sudoku Variants
Sudoku Variants

Author: Conceptis Puzzles

Publisher: Sterling Publishing Company, Inc.

Published: 2006-08

Total Pages: 154

ISBN-13: 9781402741111

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Everyone knows sudoku is enjoyable--but these addictive puzzles come in endless variations too! They range from simple to very difficult, and can take almost no time to finish...or require many hours. This entertaining collection showcases a wide range of possibilities, offering solvers who have become accustomed to the standard rules and grids an exciting new challenge. Select from Mega Sudokus that provide a real workout; Diagonals or Odd and Even versions with extra constraints; Sum Sudokus that merge with kakuro; and Multisudoku with overlapping puzzles. There's something for every level--12 x 12 puzzles, ones with irregularly shaped areas, even Mini Sudoku--and lots of fun for everyone.