Product Description

The fourth installment of the successful Times Killer Su Doku series. Adding the challenge of arithmetic and taking Su Doku to a new deadly level of difficulty. The puzzles use the same 9x9 grid as normal Su Doku but with an added mathmatical 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 Killer Su Doku puzzles, you can ease yourself in with the Moderate before taking the plunge and tackling the real killers: 20 Moderate 50 Tricky 50 Tough 30 Deadly For those who like to live dangerously and push beyond their mental comfort zone, steel yourself for The Times' toughest collection yet.

Product Details

• Amazon Sales Rank: #11878 in Books
• Published on: 2008-06-02
• Original language: English
• Binding: Paperback
• 256 pages

Customer Reviews

Features harder grids than any of the other books
I've always been a Killer Sudoku fanatic. I just find Killer to be much more interesting and challenging than normal sudoku.

The Times books are also by far the best - i've tried other Killer Sudoku books and they're just too easy or not laid-out very well. The Times books are well set out and easy to take on holiday or do one when you've got a spare minute at home. So much so for me that i've completed, re-bought and the re-completed each of the other books (1-3) before this one (sad i know!).

This latest offering features much more challenging grids than the other books. Some of the grids you just get stuck on, and however many times you keep going back to it you just can't see what you're missing! As such this is the book for all those that really want to be challenged and get satisfaction from cracking a really hard puzzle.

If you're new to Killer Sudoku, go for the earlier books as they feature more gentle puzzles and won't dishearten those trying it for the first time. However if you're up for a challenge then this book is for you.

Best killer soduku out there
Great book - perfect size to carry around since it's regular paperback and offers enough space around margins to scribble sums in.

Love the fact that it has more tough/deadly/fiendish puzzles than the earlier books - much better value for money for those who like a challenge. Having said that, I think they could be a little harder - some of the 'tough' 50 minute ones can be done in 15 mins once you get into the mindset of whoever compiled them.

Great brain work-out
For a Killer Su Doku addict like me, this is an absolute must-have. Each puzzle has a target completion time, adding a great competitive edge. Plenty of really challenging levels to work through.