Revenge of Killer Sudoku, volume 6

WARNING! WARNING! WARNING! WARNING! WARNING! WARNING!

There are NO EASY PUZZLES in this new volume of the Revenge of Killer Sudoku book series. Again, I read your reviews and figured out that you wanted more challenging Killer puzzles, so this is what I came up with. 🙂 Not only that the puzzles labeled EASY have been eliminated, but also, I think that the IQ puzzles are more fiendish than before. The same applies to Zero Killer Sudoku puzzles.

So…

  • 100 Killer Sudoku puzzles
  • 10 Killer Sudoku with diagonal cages
  • 10 NON-CONSecutive Killer Sudoku X
  • and 30 ZERO Killer Sudoku (blank cages)

Previous volumes:

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One Comment

  1. Free Online Flash Ga
    Posted October 19, 2012 at 9:38 pm | Permalink

    Really a killer one! Very very hard to crack! But an excellent brain game. Thanks for sharing.

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  • By Difficult Killer Sudoku book on May 21, 2013 at 7:09 am

    […] 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 […]

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