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…
Tag: rules
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…
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…
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…
Nurikabe
As you may have noticed, I’ve changed things a little on the site, by removing some of the daily puzzles. While Daily Killer Sudoku and Daily Sudoku variation will remain, as well as bi-Weekly Samurai Sudoku, all other puzzles will…
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…
My first Nurikabe puzzle (a difficult one)
Another addition to my portfolio of various number/logic puzzles are Nurikabe puzzles. I think these puzzles are being undeservedly somewhat neglected in the puzzle world and I intend to change that. The number of solving techniques and approaches that can…
Hitori
UPDATE: After some debate with udosuk (see comments), I’ve decided to adopt the rule that every cell must be either black or white, it can’t be left “undecided”. I’ve changed the original puzzle accordingly so you can download it now.…
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.…