The Home of Perfect Sudoku and other puzzles
Another Sudoku variation that I have adopted from my readers: Twin Killer Sudoku. 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…
This is to let you know that I’m taking a long weekend, so there won’t be any puzzles posted on Friday, April 28. To keep you happy :), today’s killer sudoku is rated IQ/INSANE, so it should give you a…
Since my Sudoku K book is still a few months away, it is time to introduce another book with my Killer Sudoku and Samurai Sudoku puzzles and puzzles from other puzzle creators. The book I’m talking about is called “Teach…
I promised something special with the Clueless concept before – and here it is: my first ever Clueless Killer Sudoku puzzle. Again, thanks to Ruud from www.sudocue.net for inventing the “clueless” concept. There are 9 Sudoku puzzles with no overlapping…
Darren Rowse, the man behind www.problogger.net is running a case-study series about blog sites. I submitted the story about www.djapedjape.com and how it all started – and guess what – Darren posted my story as the first case study! If…
Weekend Special: Butterfly Samurai Killer Sudoku with diagonally adjacent cells! 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.…
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…
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…