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- ISBN13: 9781402743993
- Condition: NEW
- Notes: Brand New from Publisher. No Remainder Mark.
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EDITORIAL REVIEWS |
Product Description
Top solvers can try their hand at the One-Sided Gordonian Rectangle; Extended Gordonian Rectangle; Gordonian Polygon; and Alternating Digits. (But they can take comfort in knowing that no more than one will occur in any single puzzle.) |
CUSTOMER REVIEWS (Average Customer Rating: 5.0 based on 9 reviews)
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Very challenging puzzles - worth every penny by WynHun (Earth)  5 Stars
June 07, 2009
These are the most challenging puzzles I have seen. Each require multiple advanced/diabolical rules in order to solve.
The book is spiral bound, so you can easily rip out the solutions and throw them away. Who cares about solutions. There are dozens of Internet sites that can provide solutions.
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Challenging by Busy shopper (Fort Lauderdale, Fl) 5 Stars
February 24, 2009
I bought the puzzle book for my mom who had complained that another book she purchased that was rated 'difficult' was too easy. Well this book was definitely challenging for her. She also liked the fact that it was spiral bound so that she can turn the pages all the way over.
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Great book for expert level players. by Nick D (Berkeley, CA) 5 Stars
December 24, 2008
This series is the best sudoku series available for intermediate and advanced players. The level 4 is close to level 3, but there are more puzzles with difficult linked chains and other advanced techniques. If you have trouble with these you need to buy the Mensa guide to solving sudoku.
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Very difficult book by Jennifer (FL, USA) 5 Stars
July 17, 2008
I enjoy this book, but strongly suggest not buying it unless you have exhausted/outgrown the other Sudoku books. This is the hardest book I have found by far. I didn't work through levels 1 - 3 (probably should have). The next hardest book I have is "Even Higher Sudoku". The latter might be good to try before moving on to this book.
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Best tough Sudoku book by P. Hoff (Huntsville, AL) 5 Stars
April 17, 2008
This is the only Sudoku book I've found where I can't do over half of the puzzles without notes. So if you want to tax your brain a bit and know about Gordian Polygons then this is the sudoku book to buy. Makes the "black belt" and "ultimate ninja" books look easy by comparison. Still all logic and no guessing required.
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SIMILAR PRODUCTS |
| Absolutely Nasty Sudoku Level 3 (Mensa)
by Frank Longo (Author)
The difficulty level soars, as even more tricks get added to the mix: X-Wing; Swordfish; XY-Wing; XYZ-Wing; and the Gordonian Rectangle.
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| Absolutely Nasty Sudoku Level 2 (Mensa)
by Frank Longo (Author)
Even more interaction—this time used in combination with other procedures…and a lot more heavily than in the first book.
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| Will Shortz Presents Ferocious Sudoku: 200 Hard Puzzles
by Will Shortz (Author)
Are you tough enough? Take on this collection of 200 devilishly difficult sudoku puzzles! Includes: -200 hard puzzles-Perfect portable size-Big grids for easy solving
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| Absolutely Nasty Sudoku Level 1 (Mensa)
by Frank Longo (Author)
The vast majority of sudoku puzzles that are labeled "hard," "expert," "challenger," are not really all that difficult. And in a surprising number of cases, they are downright easy. In the "Mensa Absolutely Nasty Sudoku" books, you will find puzzles truly worthy of the label "hard." The puzzles increase in difficulty throughout the four books in the series. It ranges from basic and intermediate puzzles and techniques at Level No. 1, to the most advanced techniques at Level No. 4, along with...
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| New York Post Fiendish Sudoku: The Official Utterly Addictive Number-Placing Puzzle
by Wayne Gould (Author)
200 New Puzzles -- From Fiendish to Super Fiendish Su Doku, "the crossword without words," comes with a warning: it is seriously addictive. You don't need to be a mathematical genius to solve these puzzles; it is simply a question of logic and a little patience.
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