Diagonal Sudoku

Can you imagine that I never posted a plain Diagonal Sudoku X puzzle here on the main page? I’ve posted a few Diagonal Samurai Sudoku puzzles and of course I often post Sudoku X puzzles on the Sudoku Variants page.…

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Hyper Sudoku

I’ve realized that there are several “staple” Sudoku Variants that I’ve never posted here on the main page. One of them is Hyper Sudoku. Although I never posted a “vanilla” Windoku puzzle (Hyper Sudoku = Windoku), I have posted, for…

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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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Tridoku

Here is a puzzle that I think deserves a lot of attention: TriDoku! It’s a great puzzle-type but for some reason it’s very rarely seen in the Sudoku world. I want to change that! Even though it may not appear…

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Jigsaw+Classic Sudoku combination

Today’s puzzle on the Daily Sudoku variants page is somewhat ambiguous. This is why I’m duplicating it here on the main page. Basically, it’s a Classic and Jigsaw Sudoku combination. In addition to 9 Jigsaw nonets, there are 9 classic…

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Clueless Sudoku

Here is another Sudoku overlapping puzzle variation. As far as I know, it was invented by Ruud from www.sudocue.net – please correct me if I’m wrong. So I thought I should give it a go at creating one such puzzle…

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