The Times Killer Su Doku Book 17

The latest volume in the hugely popular Killer Su Doku series from The Times, featuring the highest-quality puzzles with an extra element of arithmetic. This addition to the successful Times Killer Su Doku series will test your 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 numbers 1-9, it is also necessary to ensure that the outlined cubes add up to the same number as well. With 200 new Moderate, Tricky, Tough and Deadly Killer Su Doku puzzles, there is no chance to ease yourself in with simple puzzles. For those who like to live dangerously and push beyond their mental comfort zone, steel yourself for The Times' next, terribly tough installment.

Killer Su Doku poses an even greater challenge than the Fiendish Su Doku puzzles.Here are 100 previously unpublished puzzles for hard-core Su Doku addicts.

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.

Prepare yourself for the toughest Su Doku challenge there is. These diabolically difficult Ultimate Killer Su Doku puzzles will really put your brainpower to the test as you 'warm up' with the 100 Deadly Killer puzzles before steeling yourself to take on the 100 Extra Deadly Su Dokus. Are you ready for the challenge? 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!

The puzzles in this collection of treacherously difficult puzzles will stretch even the most advanced Su Doku enthusiast. You will need to use all of your best solving techniques to get to the end of this testing challenge. The puzzles in the collection are of the highest quality and are perfect for the advanced solver in need of a constant supply of ultra-difficult puzzles. Guaranteed to provide hours of mind-stretching entertainment.

Challenge your brain with these enjoyable puzzles. The latest title in The Times Fiendish Su Doku series - previously unpublished quality Su Doku puzzles. Includes 180 Fiendish and 20 Super Fiendish puzzles. You don't need to be a mathematical genius to solve the treacherous puzzles in this collection of Fiendishly difficult puzzles - it's simply a question of logic. Perfect for the advanced solver in need of a constant supply of ultra-difficult puzzles, and guaranteed to provide hours of mind-stretching entertainment.

Due to popular demand, having published numerous books with Killer Sudoku puzzles which contained puzzles of all difficulties, this time Djape has decided to publish a book only with the toughest and deadliest Killers. By no means is this a book for a novice Killer Sudoku solver. It is intended only for the most experienced and most persistent of those who are already masters at solving Sudokus with sums. It contains only puzzles of the 3 hardest levels of difficulty which Djape produces: BRAIN, IQ and INSANE, with addition of a few puzzles of an even more fiendish kind - Zero Killer Sudokus. 40 BRAIN (5 diagonal) 50 IQ! 10 ZERO (including 8 ZERO INSANE) 11 INSANE! For a total of 111 most difficult Killer Sudoku puzzles So... are you up for this challenge?