The June newsletter – INSANE Killer Sudoku puzzle

This is the insane puzzle I tried sending in June. It seems like it didn’t work. Here it is instead.

It’s been a while, hasn’t it? 🙂 I can’t remember when was the last time I posted an INSANE Killer Sudoku puzzle.

The INSANE rating is reserved for puzzles that might require some guessing OR that are not solvable using the standard methods. Therefore, solving this puzzle that I’m sending now should only be attempted by experienced solvers. Don’t be surprised if you can’t solve it, it is meant to be extremely difficult. Then, again, I’m sure that some of you will reply to me saying something like “this is NOT INSANE, I solved it in 20 minutes!!!”. 🙂 Oh well, I tried my best.

By the way, I DO NOT publish INSANE puzzles in my books.

Anyway, here is the puzzle.

(remember to click on “show images” in your e-mail software)

(click to download or right-click to save the image)

I have been providing these puzzles for FREE since 2005. Please consider clicking this “Like” button

Clicking it will help in keeping this website free.
THANK YOU!
🙂

killer sudoku books

To see the solution to this puzzle click here

 

Oh and since the summer is around the corner, think about stocking up on puzzle books for your holidays!

      

Thanks and enjoy! 🙂

Djape

 

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2 Comments

  1. Alastair
    Posted July 6, 2011 at 12:49 pm | Permalink

    Good one. Took about 4 hours so definitely Insane, but no need for guesswork. Would appreciate more

    Take it easy…

  2. Posted October 16, 2011 at 6:56 pm | Permalink

    I couldn’t get to first base on this one…..sigh. after the first two cells at r3c1 and r7c9…. I couldn’t put it together, sigh…..can anyone offer a clue?

    First time I’ve had to ask 🙁 NF

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