The Home of Perfect Sudoku and other puzzles
Jigsaw Sudoku puzzles and variants thereof. Solving tips explained. The Law of Leftovers. And more. Jigsaw Sudoku books, too.
This should be a tough one – perhaps too tough? It’s only rated “BRAIN”, but the layout makes it quite difficult, I think. 5 overlapping Jigsaw Sudoku puzzles put together in the Flower Sudoku (Gattai-5) layout, which is similar to…
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…
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…
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…
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…
It is with great pleasure that I announce that my puzzles will now be published in Norway too! A weekly magazine called Ukeavisen Ledelse will start publishing my puzzles this Friday, October 12, 2007. They will print a variety of…
A few visitors to my forum have been creating these puzzles for quite some time. Well, here is one from me. Rules: Everything is exactly the same as in your ordinary Killer Sudoku puzzles, except that there are even fewer…
I promised to explain this technique, which applies to Jigsaw Sudoku (aka irregular blocks) puzzles, a while ago, so it’s time to keep the promise. You can find the same technique explained on various other sites, too. This technique is…
Hello everyone, I’m back! 🙂 After a few weeks of no updates and some problems with the site, it’s time to get back to usual daily and weekly routines. The Washington Post Samurai Sudoku solutions have been updated. The Weekly…
It has been hinted that this kind of puzzle was going to be posted soon – and to end the suspense, here it is! 🙂 My first ever Jigsaw Samurai Sudoku! Not so many sites produce these puzzles. I might…