The Ultimate Sudoku Challenge

( 12 )

Overview

Confident solvers who think they’ve got Sudoku down cold will have to think again, because these are absolutely the most fiendishly difficult, devilishly baffling Sudokus ever devised…and the biggest, too. Created by hand in Japan—from Nikoli, the company responsible for the puzzles’ popularity in that country—the collection includes megasudokus on a 25 x 25 grid, designed to give even the sharpest minds a workout. True to its title, it’s the ultimate challenge, and one that millions of Sudoku-obsessed fans will ...

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Overview

Confident solvers who think they’ve got Sudoku down cold will have to think again, because these are absolutely the most fiendishly difficult, devilishly baffling Sudokus ever devised…and the biggest, too. Created by hand in Japan—from Nikoli, the company responsible for the puzzles’ popularity in that country—the collection includes megasudokus on a 25 x 25 grid, designed to give even the sharpest minds a workout. True to its title, it’s the ultimate challenge, and one that millions of Sudoku-obsessed fans will find irresistible. And for total newcomers brave enough to high-dive in at the deep end, there’s a quick tutorial to get them started.

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Product Details

  • ISBN-13: 9781402736490
  • Publisher: Sterling
  • Publication date: 12/28/2005
  • Pages: 288
  • Sales rank: 123,608
  • Product dimensions: 5.00 (w) x 7.00 (h) x 0.80 (d)

Customer Reviews

Average Rating 4
( 12 )
Rating Distribution

5 Star

(6)

4 Star

(3)

3 Star

(0)

2 Star

(2)

1 Star

(1)

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Sort by: Showing all of 12 Customer Reviews
  • Posted May 28, 2010

    more from this reviewer

    Great book to take with you when you know you have to wait. Challenging and rewarding.

    The solving techniques are explained and easy to follow. The challenges are very rewarding when completed. I try to get through the puzzles without mistakes, but that rarely happens. The book is small enough to make it easy to carry. I take it with me everywhere (restaurants and doctor or dentist offices) and when there is a wait, try to make progress on my current puzzle. I even take it to bed to work on before finally dozing off. I am not fond of puzzles that are too easy to solve, and I also don't like the puzzles that are so hard you can't solve them at all. This book of puzzles is in that in-between area that makes it just right.

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  • Posted December 28, 2009

    no guessing required

    tough puzzles but do not require any guessing. many hours of fun

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  • Posted November 11, 2009

    I Also Recommend:

    25's !

    This is one of those rare Sudoku compilations that contain the more complex 25 number grids. Sometimes it is nice just to become totally immersed in the game.

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  • Posted September 19, 2009

    Get this book!

    Fun, challenging, Sudoku puzzles

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  • Posted September 19, 2009

    Easy to use but not so easy to do

    Puzzles are difficult, but not super-difficult. What I like about this book is its format. One puzzle per page... lots of space to place possibilities.

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  • Posted August 29, 2009

    Not ultimate

    These sudokus are not particularly hard although a little time consuming because some of them do require you to fill in grid numbers. Many of them can be worked without ever having to do so though. The puzzles are not rated according to any difficulty level. Easy, good for memory work and just killing time.

    I gave it a 2 rating because it is called the "ultimate" and says it contains difficult puzzles, but it does not.

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  • Anonymous

    Posted August 29, 2009

    I Also Recommend:

    Nothing "Ultimate" about it.

    Medium level of difficulty at best. Nice size and good quakity paper. Frank Longo Sudoku series is much better and black belt is very challenging.

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  • Posted June 20, 2009

    Challenging

    I bought this book when my daughter was expecting her first baby. I wanted something to do while sitting in the waiting room on delivery day ... something that would make the time go by quickly. This did the trick. The puzzles are challenging. They seem to intersperse slightly easier ones with the more difficult ones ... I suppose so you don't get too frustrated. But even the easiest are a higher level of challenge than what I had been used to in the daily paper.

    The baby is now one month old and I have stopped doing the Sudoku in the daily paper altogether, and am instead working through the puzzles in this book, one a day. I haven't gotten to the last section of the book yet, that has some sort of extended Sudoku puzzles ... but I will. I'm plugging away.

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  • Anonymous

    Posted February 23, 2009

    tiny boxes--you could go blind

    Although the puzzles seemed challenging and not the usual 3x3 format, unless I wanted to create my own blank sheets on a larger piece of paper, I couldn't work them. The boxes are incredibly tiny, and it wasn't worth it for me to make my own blanks.

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  • Anonymous

    Posted March 21, 2008

    Difficult sudoku books are hard to find.

    This book was fun. Usually I skip to the back of the book on the easy to hard puzzles. Then when the most challenging turn out to be easy I feel I figure the book is good only for waiting rooms or restaurants where you meet friends who are not very punctual. This book is different. If you know how to do Sudoku and want a challenge, this is a good book to get.

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  • Anonymous

    Posted August 17, 2006

    My Favorite Sudoku Book Yet!

    This book claims to have 'the toughest puzzles' and it delivers. Of course, a few you get in a snap, but many keep you working. I highly recommend this to those who enjoy a challenge.

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  • Anonymous

    Posted June 1, 2010

    No text was provided for this review.

Sort by: Showing all of 12 Customer Reviews

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