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HomeEverything ElseAbsolutely Nasty Sudoku Level 4 (Mensa) |
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| Customer Reviews: | | Average Customer Review:
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 Exactly as advertised! Aug 29, 2010
A two page introduction, frankly, is of absolutely no value in helping puzzlers solve anything in this book. The reason for that is extraordinarily simple. The title is exactly correct. The book is all puzzles, straight sudoku, no variations and they're all difficult. They uniformly require one and, frequently, multiple applications of advanced techniques such as:
Crosshatching
Single candidate squares
Single square candidates
Virtual crosshatching
Naked pairs, triples and quads
Row, column and box claims
Remote pair chains
Non-unique rectangles
Bivalue Universal Grave
X-wings, Swordfish and Jellyfish
XY-wings
XYZ-wings
Conjugate Pair Chains
Multi-colouring
XY-chains
There is no instruction in the book at all that would help you with techniques at this level.
Paper quality is excellent and will take multiple erasures. The ring binding is wonderful and allow puzzles on both sides of the page to be solved on a perfectly flat surface. Good job, Mr Longo, and thank you.
Paul Weiss
1 of 1 found the following review helpful:
 And now for something completely difficult... Jun 11, 2010
If you're a sudoku junkie like me looking for a puzzle book that actually lives up to its title's difficulty, this is the book for you. When I first got this book, I was overjoyed I could not solve the puzzle with the normal methods I used (no guessing either, admit it---that's cheating). If the newspaper's most difficult puzzles don't exercise your brain any more, and the serialized suduko books almost seem like they rotate old puzzles and change the numbers to sell more books, this is something completely different. It's a good thing this is a spiral bound book with thick paper because you WILL be erasing a lot. Mr. Longo, more please more!
1 of 1 found the following review helpful:
My wife loves it! Mar 30, 2010
This is a great challenging Sudoku book! My wife has been looking for something like this for ages and has been disappointed in the past. You will not go wrong with this!! Enjoy.....
1 of 1 found the following review helpful:
 Help! Mar 04, 2010
Definitely Nasty! I would have liked a section included in the book for teaching the techniques that are required to work these puzzles. Intermediate level strategies just won't be enough.
5 of 5 found the following review helpful:
The best level of them all! Dec 12, 2009
After creating a pile of completed sudoku books on my shelf, I decided to tackle the Mensa Absolutely Nasty Sudoku series. And I started at the beginning, working through every puzzle, levels 1-4. I'm almost done with level 4 now, and it has been everything I hoped it would be. I get frustrated, I get angry, I yell at the book -- and that's exactly what I was looking for. Yes, you will have to use ridiculously complicated techniques to solve these puzzles. And best of all, you will feel like you have really accomplished a feat of logic once you are done. It's spiral-bound with high-quality paper, for those who care about such things; basically, for those who are tired of flying through puzzles, this is the perfect book.
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