Butterfly Killer Sudoku

It’s been a while since I last posted a Killer Sudoku variation. As far as I can remember, you folks liked the Butterfly layout of the puzzles, so here is an overlapping, 4-in-1 (Gattai-4), Killer Butterfly Sudoku puzzles. You can also find these puzzles in my Killer Sudoku Compendium book. Killer Butterfly Sudoku for Friday, January 29, 2010 – Difficulty: BRAIN.
(click to download or right-click to save the image!)

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To see the solution to this puzzle click here
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One Comment

  1. Scott Urman
    Posted January 29, 2010 at 8:30 pm | Permalink

    Awesome! These are among my favorite variations (I’ve already done all the ones in the killer sukoku compendium). 🙂

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