Tag Archives: sudoku x

How to solve Diagonal Sudoku X

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

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 […]
Diagonal Sudoku book

Posted in Free sample puzzles, Sudoku Variants | Also tagged , , , , , , , , , | 5 Responses

Outside Sudoku and its variants: You Really Should Try this Type of Sudoku

After two new book reviews from Amazon that I posted, here I’m posting all reviews of one of the books that should catch your attention: Outside Sudoku and its variants. This book is special because it contains a variety of a variety. 🙂 Outside Sudoku puzzles have essentially the same rules as classic Sudoku, but […]
Posted in Jigsaw Sudoku, Reviews | Also tagged , , , , , , , , , , , , , , , , , , , , , , , | 2 Responses

Diagonal Killer Samurai Sudoku X – thanks to my Facebook group

On my Killer and Samurai Sudoku fans Facebook page I recently asked members to post a link to this Facebook group on their walls in order to help me promote it. I also decided to award the first poster with a puzzle of their choice. Who was the first one? Well, you can have a […]
Killer Sudoku Samurai: 65 puzzles (Volume 1)

Posted in Free sample puzzles, Killer Sudoku, Samurai sudoku, Sudoku Variants | Also tagged , , , , , , , , , , , , | 1 Response

Triangular Sudoku variant: TriDoku X

If you can have Diagonal Sudoku or Sudoku X puzzles, why not have a TriDoku X? Although it looks more like a TriDoku *, I decided to keep the “X” in the name. Perhaps it could be called a TriDoku Star? Whatever you call it, I think the additional rules are obvious: in addition to […]
Tridoku , triangular Sudoku

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Perfect Sudoku puzzles in Norway!

It is with great pleasure that I announce that my puzzles will now be published in Norway too! A weekly magazine called Ukeavisen Ledelse will start publishing my puzzles this Friday, October 12, 2007. They will print a variety of my puzzles, including vanilla Sudoku, Sudoku X and Jigsaw Sudoku.
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Clueless Zero Killer Sudoku

This could well be the most difficult puzzle I’ve ever created. Yet, unlike some previous ones which were intentionally created to require trial&error, this one can surely be solved without guessing. This is a Zero Killer Sudoku puzzle in a Clueless format. Once more I want to thank Ruud for inventing the “Clueless” arrangement of […]
Fiendish Killer Sudoku Book

Posted in Free sample puzzles, Killer Sudoku | Also tagged , , , , , , , | 12 Responses
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