Will Shortz Presents Ferocious Sudoku: 200 Hard Puzzles

 (18 customer reviews)

This book gives you 100 "difficult" puzzles and 100 "very challenging" puzzles. Although there's no official grading system for Sudoku puzzles, I've done about half the puzzles in this book and I would say those descriptions are accurate. The "difficult" puzzles are hard enough to make me think but not so hard that I've had to use notations to solve them, and the "very challenging" puzzles usually require me to make notations and I've even gotten hung up on a couple of them.

The book is big enough so that the puzzles can be easily read yet small enough that it will fit in your laptop case. It's also very fairly priced for the number of puzzles you get.

Well, I've gone through quite a few sudoku books and thought I was hot stuff. Then Ferocious Sudoku book assaulted my ego. Well, if you're looking to step up to the big leagues, this is the book; I haven't found a tougher one.

These puzzles aren't as hard as I had hoped, but are better than most books. Well worth it, and will pass the time as desired.