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Killer Sudoku with all operators in TwoDoku format

I don’t think I’ve ever posted a puzzle like this one. Yes it is essentially a Killer puzzle. Yes, it’s also an overlapping sudoku puzzle, Gattai-2 (TwoDoku). But it also has some similarity with Calcudoku puzzles, because you must use all four operators (+, -, *, /). Killer TwoDoku with all ops for Tuesday, February 2, 2010 – Difficulty: BRAIN.
(click to download or right-click to save the image!)

Fiendish Killer Sudoku Book

To see the solution to this puzzle click here
This entry was posted in Free sample puzzles, Killer Sudoku, Puzzle variants and tagged , , , , , , , . Bookmark the permalink. Post a comment or leave a trackback: Trackback URL.


  1. Scott Urman
    Posted February 2, 2010 at 9:52 pm | Permalink

    Neat! Keep the variations coming! (All of these will just have to delay my finishing the puzzles in the books…) 😉

  2. Anne Powell
    Posted February 3, 2010 at 8:26 pm | Permalink

    More please – that was great!

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