Category Archives: Sudoku Variants

Sudoku Variants, such as TriDoku, Outside Sudoku, Non-Consecutive Sudoku, Greater/Less Than, Sudoku Straights etc

  • Flagship books

    The Way of Samurai_Sudoku, volume 1        Revenge of Killer_Sudoku, volume 1        Jigsaw_sudoku, very twisted puzzles        Hanjie_, Griddlers_, Nonograms_: whatever the name, it is the same game

Odd Even Sudoku

odd-even-sudoku-variants-20121231-INSANE

Merry Christmas to all who celebrate this day! As a small gift for you, I’ve prepared an odd-even sudoku variation puzzle. It’s not the first odd even puzzle I ever posted, but it is the first plain odd even sudoku. And to spice things up a little bit, this is a very difficult odd/even sudoku! [...]Diagonal_Sudoku X

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Flower Sudoku and Outside Sudoku on Kindle

floweroutside

Remember this book: It’s a mix of Flower Sudoku and Outside Sudoku puzzles. Well, it is now also available on all e-ink Kindle devices (Kindle Touch, Kindle Paperwhite, 2nd gen, 3rd gen, Kindle DX, Kindle keyboard, new Kindle… all). I really think this is the best collection of my puzzles. It contains 14 different variations [...]

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Sudoku Variations

I’ve created numerous variations of Sudoku puzzles. Here is a list of some of them. You can find even more of them in the Sample Puzzles category. You can also see my Sudoku Variations books. Diagonal Sudoku Jigsaw Sudoku Flower Sudoku Outside Sudoku Non Consecutive Sudoku Sudoku Samurai Sudoku Straights Tridoku Killer Samurai Sudoku Killer [...]

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How to solve Diagonal Sudoku X

diagonal-sudoku-crossover-technique

I realize that I’ve never posted two sudoku solving techniques which are specific to Diagonal Sudoku puzzles. Here they are. Diagonal and nonet interaction This one is a simple extension of the “row/column and nonet interaction technique”. Just look at this sample puzzle which has been solved using the standard techniques up to this point: [...]

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Diagonal Sudoku

diagonal-sudoku-x-20121210-difficulty-BRAIN-sudoku_variants

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. Well, that’s about to change. Here is a Sodoku X puzzle which is not too [...]Diagonal_Sudoku X

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