Perhaps you’ve already noticed the cover of my new Killer Sudoku book. In case you haven’t, here is a proper presentation of this new and fiendish sudoku book.
So… many of you have asked for a book with only the most di...
Perhaps you’ve already noticed the cover of my new Killer Sudoku book. In case you haven’t, here is a proper presentation of this new and fiendish sudoku book.
So… many of you have asked for a book with only the most difficult of my Killer Sudokus. In “Revenge of Killer Sudoku 6” I dropped the easy puzzles and focused on THINKER and BRAIN levels of difficulty. Well, this time, I’m raising the bar at least two notches up. There are no more COOL and THINKERs! Instead, there are now just BRAIN, IQ and INSANE puzzles!
Yes, that’s right. INSANE. You asked for it. Here they are. Just to make things clear, what you get in this book is:
40 BRAIN (5 diagonal)
50 IQ!
10 ZERO (including 8 ZERO INSANE)
11 INSANE!
It doesn’t get any better than this. The summer will be HOT with these puzzles! Try them!
