This could well be the most difficult puzzle I’ve ever created. Yet, unlike some previous ones which were intentionally created to require trial&error, this one can surely be solved without guessing. This is a Zero Killer Sudoku puzzle in a Clueless format. Once more I want to thank Ruud for inventing the “Clueless” arrangement 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 clues given to you to start with. Some cells are not joined in any cages, […]
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 Samurai X puzzles is now also in place. On Tuesday, there will be a new […]
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 consider including them more often, or maybe even on a regular basis. We’ll see. Jigsaw […]
Ok, some of you thought that my previous invention was “nice” or even “very cool”, but some also thought that it was “really easy” and “not a challenge”. So I have to keep inventing new stuff. I quickly checked the web and couldn’t find this variation. If you’ve already seen it, please let me know. […]
It’s been a while! 🙂 For various reasons I haven’t made any posts in the last few months but that’s about to change. Thanks to Princess Amy, I’m presenting you a very special Sudoku puzzle. It consists of 1 Killer, 1 Odd/Even, 1 , 1 Consecutive and 1 Butterfly Sudoku puzzle, arranged Samurai Sudoku-style. Make […]
Here is something brand new, well, for this site anyway: Hanjie puzzles, previously known under the name “Tsunami”. I have been supplying these puzzles to Euromedia Finland since July who are publishing a Hanjie magazine every month. Each issue of their magazine contains 31 of my Hanjie puzzles in various sizes, from 10×10, 15×15 and […]
How many Sudoku variants are there? I don’t know. To calculate, you’d have to multiply the number of overlapping types with the number of variants that impose additional constraints on each puzzle. I produce puzzles with 5 different constraints: Killer, Odd/Even, Greater/Less than, Consecutive, and Non-Consecutive. But then again, you can put an “X” on […]