The Home of Perfect Sudoku and other puzzles
Killer Sudoku and variants thereof, including Zero Killer, Killer Samurai Sudoku, Killer Flower Sudoku and more. Solving techniques for Killer Sudoku also explained here. Killer Sudoku books.
Weekend Special: Here is a new type of Killer Sudoku puzzles in which cages can be formed between cells that are not horizontally or vertically adjacent to each other, but that can also be diagonally adjacent. When you download this…
Multimediapress from France have started publishing our puzzles in their monthly magazines. To the best of my knowledge (please correct me if I’m wrong), they are the first in the world to publish Killer Samurai puzzles in press. I wish…
At long last, I can announce that a book with our Killer Sudoku puzzles will be published worldwide! We have partnered with Via Optima (from Portugal) and Ronin Publishing (from US) to deliver you this book. It will be published…
Another Killer Samurai with full (quad) symmetry! This time it’s more (but not terribly) difficult. I’m gone skiing for the weekend, so I hope these puzzles will last you until Monday. 🙂
You knew this was coming – surely the largest Killer Sudoku puzzle ever! It’s a Butterfly Samurai Killer puzzle! It consists of 20 (twenty) 9×9 Sudoku sub-puzzles. There are 5 groups of 4 puzzles. Each group of 4 is arranged…
Here we go – Killer Samurai with full (quad) symmetry! The first step (innies and outies) in solving it is here.
Here is this weekend’s special – a unique and never-seen-before Killer Butterfly X There are 4 “classic” 9×9 Sudoku puzzles inside this one. They all overlap and they all must be solved according to the rules of Sudoku and Killer…
Here we go – Killer Samurai with full (quad) symmetry! The first step (innies and outies) in solving it is here.
I don’t know if there is a species that go under that name and if there are, my apologies to them. Another world premiere Sudoku variation puzzle – Butterfly Killer Sudoku. Thanks to one of our regular visitors udosuk for…
Killer Samurai Sudoku X for New Year’s Day – this is the only place you can find these kind of Sudoku puzzles! Warning: Today’s puzzle is very difficult! Basically, not only do you have to fight against 5 interconnected Sudokus,…