Twodoku

Here we go… another “classic” Sudoku that I can’t remember posting before. Twodoku is a Gattai-2 puzzle, which means that there are two overlapping Sudokus. It’s a tough one, I think. In order to solve it, you should use all…

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Butterfly Sudoku

I realized that I never posted a classic Butterfly Sudoku puzzle on the main page of the website. A few of them have been posted on the Daily Sudoku Variants page, but the puzzles posted there disappear from this website…

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OddEven Jigsaw Samurai Sudoku

It’s been a while since I last posted a Samurai Sudoku variant puzzle. Here is a new one. As far as I remember, I never posted such puzzle before. Remember: shaded cells MUST contain only ODD numbers! OddEven Jigsaw Samurai…

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The Law of Leftovers (LOL)

I promised to explain this technique, which applies to Jigsaw Sudoku (aka irregular blocks) puzzles, a while ago, so it’s time to keep the promise. You can find the same technique explained on various other sites, too. This technique is…

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