This is the archive of the old posts from Djape .Net, more or less as they used to be. Please go to to see the new website.

Weekend Special – Insane Killer

Ok thanks for all your comments to my post regarding the difficulty of some puzzles. I completely changed the rating system and created a large number of puzzles just to test it. As promised – I just posted an extra killer puzzle, rated (by the new rating system) as INSANE. It’s actually one of the puzzles with the highest overall difficulty rating – I hope you find this one challenging. If not – well, I’ll have to redo the rating again :). Let me know how you feel about this one… Have a good weekend!
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  1. Adele
    Posted November 13, 2005 at 10:44 am | Permalink

    The weekend Killer took hubby 45 mins to do – now he is bored.
    Cannot get enough of these to keep him going/amused.

  2. Stan
    Posted November 13, 2005 at 2:10 pm | Permalink

    I really enjoyed this one. Found it hard to get started and then a really nice flow as the possibilities narrowed. Took me over an hour. Time well (mis)spent:-). Many thanks and keep up the good work.

    More, more, more ……..

  3. teostress
    Posted November 13, 2005 at 6:43 pm | Permalink

    About one hour to “get rid” of the insane….
    I really enjoy Insane more than other difficulty levels…

    Thank you again for your beautiful work!


  4. robert berell
    Posted November 13, 2005 at 8:45 pm | Permalink

    I cannot access the Killer suduko for November 12-13 on your website. I must be missing something, could you email the comlete url of the page where I can find it as I am crazy for Killer sudukos..thanks for all your work on this site.

  5. cindy_spain
    Posted November 14, 2005 at 10:15 am | Permalink

    Excellent insane killer! Took me about 45 min.


  6. udosuk
    Posted November 14, 2005 at 7:16 am | Permalink

    The insane killer on Sunday is available in the Daily Killer Sudoku column:

    Afterward it will be moved to the “puzzle archive”:

    I found this one quite challenging, and deserve the rating of “insane”. I even applied x-wing in some stage, although it might not be really necessary. I guess what made me feel uneasy was the need to add up a large group of cells. Pardon me but I just prefer to perform mind computation instead of using a calculator (a real one). In this puzzle there are outies of whole bands and stacks and while I was capable of those it just took more time and strained my brain a little bit. Next time I won’t hesitate to open the Excel sheet and let the CPU do all those manual chores…

  7. Cathy
    Posted November 14, 2005 at 6:29 pm | Permalink

    It’s no good – I’m obviously missing something here. Please can someone give me a little extra clue, I’ve only got 5 numbers so far: r3c7=2, r4c9=4, r5c9=2, r7c7=1, c7c8=2. Lots of candidates in the right hand stack (box 6 with naked pairs and a triplet) and a number of split cages but they don’t seem to help.


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