The Home of Perfect Sudoku and other puzzles
Weekend Special: Butterfly Samurai Killer Sudoku with diagonal cages! This puzzle consists of 20 (twenty) 9×9 Sudoku sub-puzzles. There are 5 groups of 4 puzzles. Each group of 4 is arranged Butterfly-style, and those 5 groups are arranged Samurai-style. Please…
Well, it’ time to revive the “Daily Sudoku variants” page. First of all, that page has been renamed to “(Non)consecutive”. Since this variation of Sudoku puzzles has proven to be more popular than odd/even and greater/less than, I have decided…
A while ago I posted 2 Clueless Killer Sudoku puzzles and for the second one I suggested that you shouldn’t attempt to solve it. Well here is another puzzle of the same kind. I won’t make any suggestions this time…
There have been no updates for about two weeks because I was away from home for a while. I will make sure to put everything into place now and also I will start working on making some major improvements on…
Well, folks, one year has passed since I posted my first INSANE Killer Sudoku puzzle. Although it wasn’t “perfect” (it contains singleton cages), most probably this site wouldn’t become popular if it hadn’t been for that puzzle. It was by…
It’s been a while since I last posted a Butterfly Killer, let alone one with the “X” factor. So, here it is – and to spice it up a little, I made it quite hard (altho I expect someone to…
Well, folks, it’s been more than one year since I started posting puzzles on this website and I’d like to write a few words about that. Actually, since this site has become popular thanks to Killer Sudoku puzzles I intended…
Somehow butterfly puzzles have been neglected in the past few months and it’s time to rectify. A quick reminder – this breed of overlapping sudoku puzzles was suggested by udosuk and implemented by myself. There are 4 “classic” 9×9 Killer…
Just so you don’t think that I disappeared off the face of the earth (or sea?), here is a new Twin Killer sudoku puzzle for you! Two puzzles that do not overlap. Instead, they are placed next to each other,…
For those who don’t get enough challenge from Killer Samurai Sudoku nor from Harakiri nor from Twin Killer nor from any other overlapping, odd/even, consecutive or greater/less than sudoku – here is the ultimate challenge – my second ever Clueless…