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…
Category: Sudoku Variants
Sudoku Variants, such as TriDoku, Outside Sudoku, Non-Consecutive Sudoku, Greater/Less Than, Sudoku Straights etc
Outside Consecutive Sudoku
Here is another variant of Outside Sudoku puzzles: a consecutive Sudoku. I’m sure you are aware of the rules, but lets repeat that the numbers in cells that are connected by the pipe “|” symbol MUST BE CONSECUTIVE. Numbers is…
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…
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…
Outside Non-Consecutive Sudoku
I announced this one when I posted my first Outside Sudoku puzzle: it’s a non consecutive Outside Sudoku. Even though it looks like a regular Sudoku puzzle, you must follow one extra rule: two touching numbers must not be consecutive.…
Outside Jigsaw Sudoku
Another novelty in 2010 – Outside Jigsaw Sudoku. Read the rules of Outside Sudoku first. And then, twist it a little – it’s a Jigsaw (Irregular) Sudoku puzzle! UPDATE: One clarification about the rules of Outside Jigsaw Sudokus: The clues…
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…
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.…
Happy New Year!
I hope you all had a nice Christmas and that you are enduring the cold weather well. Well, those in the Northern hemisphere anyway. 🙂 Let me tell you about the changes that I plan for 2009: There will be…
Introducing “Sudoku Sequences” or “Sudoku Straights”
Here is a brand new Sudoku variation as a special Christmas present. Hope you will like it. 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…