Tag Archives: Sudoku Variant

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 […]
Posted in Free sample puzzles, Sudoku Variants | Also tagged , , , , , , | 3 Responses

Introducing Slitherlink (loop the loop, takegaki, fences, dotty dilemma… you name it)

Another kind of puzzles that I’ve started creating recently… Slitherlink! These puzzles are also known under many different names. Slitherlink puzzles are not a Sudoku variant. They can be of any size and the rules are: 1. Connect the dots to form a single loop with no points of intersection. 2. The clues given tell […]
Posted in Free sample puzzles, Puzzle variants | Also tagged , , , , , , , , , , , , , | 5 Responses

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 Sudoku nonets too. You have to use them both in order to solve the puzzle. […]
Posted in Free sample puzzles, Jigsaw Sudoku, Sudoku Variants | Also tagged , , , , , , , , | 2 Responses

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 Sudoku for Thursday, January 14, 2010 – Difficulty: COOL. Click on the puzzle thumbnail to […]
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Outside Sudoku

Here is something new (for this site) for the New Year: Outside Sudoku. This puzzle is also shown today on the Daily Sudoku variants page, but I thought I should properly introduce it. The rules: 1. For the 9×9 grid all standard Sudoku rules apply. However, you don’t have any starting clues in there! 2. […]
Posted in Free sample puzzles, General, Sudoku Variants | Also tagged , , , , , , , , , | 17 Responses

Sudoku Straights: Where Poker meets Sudoku – 150 puzzles (PDF e-book)

I’ve prepared another very special book – very first of its kind, as far as I know. It contains Sudoku straights puzzles, which I post every Friday on the Daily Sudoku variants page. (click on the cover page to go to lulu and buy!) US $5.95 or £4.24 or €4.61 (PDF e-book) (payable by PayPal […]
Posted in General, Killer Sudoku, Puzzle books, Puzzle variants, Sudoku Variants | Also tagged , , , , , , , , , , , , , , , | 4 Responses

Sudoku Straights

It’s only Wednesday, but I decided to present you with another Sudoku Straights puzzle. Remember that they are shown every Friday on the Daily Sudoku variants page. The rules: 1. Use numbers 1-9. Numbers cannot be repeated in rows/columns. 2. There are no nonets (3×3 boxes) like in other Sudoku puzzles. 3. Black cells do […]
Posted in Free sample puzzles, Sudoku Variants | Also tagged , , , , , , , , | 6 Responses
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