Su Doku for Dummies (For Dummies (Sports & Hobbies)) [ペーパーバック]

Allow me to explain how messed up are the levels of difficulty of the puzzles in this book.

There are computer programs that let you enter any Sudoku puzzle and then can tell you how hard the puzzle is by classifying it into certain levels of difficulty. A friend of mine who is very good at Sudoku got one such software, and that one uses the following difficulty levels: 1) Very Easy, 2) Easy, 3) Medium, and 4) Hard. There is a separate special level of difficulty called "Very Hard - Unfair", but that's reserved for Sudoku puzzles that require guessing / trial and error.

Sudoku puzzle number 3 in this book, supposedly an "entry level" puzzle according to the book, is ranked as "Medium" by the software mentioned above. Who considers a level of difficulty 3 out of 4 an "entry level"? And I do think these kinds of software have extremely powerful solving engines, making them capable of accurate assessments on the levels of difficulty of any puzzle.

This messed up level of difficulty in such an early exercise can be extremely discouraging for newbies, and on the other hand, in my opinion it is a sympton of little care and very poor editing when putting this book together.

Page 35 of the book (Spanish version) talks about one of the alleged "Beyond the obvious" strategies, a so called "Rule of the three numbers in three cells", or in more standardized terminology found online, the "Hidden Triples" strategy. In my opinion the strategy is very poorly exemplified and explained in the book. Any webpage describing it is much more enlightening and clear. And there are numerous other strategies very carefully explained in several online sources, which are not even mentioned in this book (not even in the Sudoku for Dummies vol 2).

The book has no alphabetical index at the end by the way, so you can't search for strategy names directly, or for key words, and there is a good reason for that: the book has really very little textual information. An alphabetical index would be ridiculous with so few entries. There is only a few pages of text at the beginning, 37 out of 342 pages, Spanish version again. Those text pages basically describe the only rule of Sudoku with some diagrams, and them attempt to explain very few basic solving strategies plus the poorly explained hidden triples. From the 37 first pages remove the first 12 which are mostly contents, intro, etc. So basically, 25 pages of text, in a small format book (7x5 inches). The bulk of the book is just exercises, and their solutions.

This book in general does not match the typical comprehensiveness I've seen in many For Dummies books.

What other reviewer indicates is also true, the paper this book was made of is pretty bad, doesn't stand erasing too well.

Conclusion: NOT recommended. Try other Sudoku books with less faults. And in any case, check the numerous Sudoku resources and compilations of strategies available for free online. This book in my opinion is not worth it. I really regret having purchased it.

This is a good book if you are new work Su Doku puzzles. It has good definitions of terms, but it also has a few typos in the instructions which caused some confusion. I had to reread the sections a couple of times before I understood what was being said. However, once past that, I was able to begin working the puzzles. A good variety of easy, medium and difficult puzzles. I am not too please with the paper content; it does not hold up well to eraser marks.

I first came across SUDOKU in May of this year.I have been a puzzle enthusiast since I was in High School ,over 55 years ago;and have seen a myriad of puzzles and games come and go.I really have no favorites as I enjoy them all.From the time I completed my first SUDOKU,I knew there was something different and special about these puzzles.No special knowledge or special abilities are required for anyone of any language,skill or age to do this puzzle.This is similar to Jigsaws and Crosswords;and the reason these puzzles have become universally popular,probably outstripping all other types of puzzes.I believe we will soon see speed competitions taking various forms including TV.
Checking out the Books available,I found a few already published,and without doubt there will be a flood of them in the near future.You will see among my reviews,a few others I have checked out.
This book is just as good as the others to get you started.It covers the basic methods and hints to help you solve them. In addition,it gives you 240 SUDOKU puzzles. In all fairness,to date ,there is not really much to pick and choose among the half dozen books at this time.However,I would not at all be surprised to see more books shortly;describing more sophistophed and speed enhancing methods and hints.
In the meantime ,you should find SUDOKU puzzles in your local newspapers.To date, I have not seen any SUDOKU magazines on the shelves,but expect to see lots of them shortly.
Don't overlook the Net though,there is lots of good stuff by searching under SUDOKU.
In the meantime ,GOOD SUDOKUING!
By the way you might want to check out my other Sudoku book reviews on Aug 3 (2 books),Aug 6,Aug 10 and Sep 30 of this year.