Sudoku Killer Insane – with Quad Symmetry

I just uploaded an INSANE Killer puzzle to Daily Killer page. Not only that it has the highest difficulty ranking, but it’s also fully symmetrical, just like yesterday’s BRAIN puzzle. Normally, Sudoku Killer puzzles have “rotational” (or diagonal) symmetry, but…

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More exclusive puzzles

I just uploaded my first ever overlapping Killer Sudoku puzzle. I can now create any kind of such puzzles, including Killer Samurai The puzzle should be very easy to solve – I wanted you to get used to them first.…

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Comments

There were quite a few comments from our visitors, especially on the Daily Killer Sudoku page, which makes that and other pages load slow. Therefore, I have moved some of the old comments to this new category. If you’d like…

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Puzzle difficulty

First of all, I posted a Killer X puzzle rated THINKER for today. I would like to know how difficult you find this one. Regarding the INSANE puzzle posted on Friday – I see that there has been a lot…

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