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Will Shortz Presents The Dangerous Book of KenKen: 100 Very Hard Logic Puzzles That Make You Smarter Paperback – July 3, 2012
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About the Author
TETSUYA MIYAMOTO, the creator of KenKen, is a math teacher whose use of KenKen in his classroom has proved so successful that it has lead to a worldwide demand for his puzzle to be published in book form.
WILL SHORTZ has been crossword editor of The New York Times since 1993. He is also the puzzlemaster on NPR's Weekend Edition Sunday.
Top Customer Reviews
The 100 puzzles are labeled as Medium, Difficult and Very Challenging. The algorithm for assigning these levels of difficulty is not perfect. The actual level (as experienced by this solver) went up and down by a lot haphazardly among puzzles in any puzzle size. Many of the Difficult puzzles in a set were harder than many of the later, Very Challenging, puzzles in the set.
I think Mr. Miyamoto tried for a bit of geometrical artistry in his personal creations. I may be wrong, but I imagine that the larger and more orderly collections, Ferocious KenKen (200 puzzles) and Ultimate KenKen Omnibus (500 puzzles), were done by him. Most of those puzzles have a rough near-symmetry. If you fold the top half over the bottom half, the cage shapes sort of match, much more than would occur randomly. The puzzles have a pleasing look. Each section, for example the 8x8 puzzles, progresses fairly steadily in difficulty. Meanwhile the near-symmetry edges toward perfection, almost getting there at the last puzzle. With their orderly progression, these two collections are ideal for developing your skill. Also, they reach a level of difficulty higher than Terrifying KenKen.
Oddly, puzzle #97 stands out in being much harder than any other in the book. It has a lot of big cages. It has two 4-cell +cages (addition), two 4-cell xcages (multiplication), and two 5-cell +cages.Read more ›
Why would that matter?
Sometimes I'm tired, or maybe I only have a few minutes and I would like to complete a puzzle - in these cases it's nice to be able to select a 'medium' (or easy) level puzzle. For this reason I gave it 4 stars instead of 5.
Still, it's KenKen! Some of the puzzles are quite challenging; I can get that special satisfaction, scratch that itch in my brain... If you're hooked on KenKen then you know what I'm talking about.
I had a chance to talk to Will Shortz today and I asked him "so where are they really, really, REALLY hard kenken puzzles?" and he pointed me to "Tom Tom Puzzles" by Tom Snyder. Unfortunately I have that one already :-) but he's right: it gives you a level of challenge that none of the books Shortz is associated with ever will.
Most Recent Customer Reviews
What do you say about a Puzzle book. It is good and provides some entertainment.Published 4 months ago by SharonC
This is an obligatory comment so they can stop asking how great this product is.Published 6 months ago by Russel Nelson
we do KenKens every day- the 7s, 8s, and 9s are challenging,
and it's great to carry a book on planes or have in the car so one's available if you've got some waiting to do.