» Mensa Absolutely Nasty Sudoku Level 4

Mensa Absolutely Nasty Sudoku Level 4 Reviews

Customer Rating:
Summary: Great book for expert level players.
Comment: 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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Customer Rating:
Summary: Very difficult book
Comment: 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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Customer Rating:
Summary: Best tough Sudoku book
Comment: 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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Customer Rating:
Summary: I love the pain!
Comment: As someone who searches for seriously difficult sudoku, I love this book. The puzzles are all very hard, but still require a variety of solving methods, some of which I find approachable, and others of which are truly painful, at least for me. I agree with another reviewer that it would be nice to have "speaking" solutions, that is, solutions that explain how the puzzle was solved, but solving methods vary so much by player that this is probably only a dream. There are truly no linear solution methods, which is what makes sudoku so attractive.

Compared to the many other books that claim to offer very hard sudoku, this one stands way out as telling it like it is.

I criticised the "Mensa Guide" book for its fragile binding and tiny grids, so I have to award big points for the spiral binding and large grids of this book.

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Customer Rating:
Summary: Nail biting and time consuming
Comment: These are some really, really challenging sudoku. It would be nice in the next edition if we could have some descriptions on how to solve using the more complicated techniques. It would also be nice if the answers included reference to which of the more difficult techniques were used to solve them.

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