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 make sure you understand how the puzzles are arranged before attempting to solve the puzzle. […]
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 – I hope you will enjoy the puzzle. 🙂 Again, thanks to Ruud from www.sudocue.net […]
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 this site (more about that soon), but in the meanwhile, I’d like to present you […]
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 far the most difficult Killer Sudoku puzzle that the world had seen at that time […]
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 get back in 20 minutes and say it was way too easy). So, you get […]
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 Sudoku puzzles inside this one. They all overlap and they all must be solved according […]
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, but most importantly – they both have the same solution. Or, to be more precise, […]
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 Killer Sudoku. If your friends or family call you names when they see you solving […]