Here is something completely new! 🙂 A new variant of Sudoku puzzles, previously unseen anywhere! Two overlapping Outside Sudoku puzzles arranged in the Twodoku format. What else needs to be said? 🙂 Well, just that some clues had to be left on the inside, too. Those are regular Sudoku clues and you use them as […]
Here is a new variant of Outside Sudoku puzzles: Sudoku Straights. The rules of Outside Sudoku are explained here. The rules of Sudoku Straights are explained here. Now, all you need to do is combine them and apply them both. It’s a rather difficult puzzle (or so I think). What do you think? Outside 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 cell that are have no pipe symbol between them MUST NOT BE CONSECUTIVE, they have […]
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 Non/Consecutive Sudoku for Monday, January 18, 2010 – Difficulty: THINKER. Click on the puzzle […]
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 tell you which numbers appear in the 3 closest cells in that row/column. They are […]
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. […]