The Home of Perfect Sudoku and other puzzles
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…
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,…
Ok, this time I will show you a hanjie puzzle that is relatively straightforward until halfway through the puzzle you come to a point where you have to use one advanced solving technique. It will be explained in detail in…
Here is a brand new 20×20 Hanjie (griddlers, pic-a-pix) puzzle for you – October 26, 2006 After this one I intend to start posting some more difficult ones, but this one is still quite easy. Enjoy!
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…
It seems like I’ve overdone it again – the first Hanjie puzzle posted a few days ago was too big according to many of the visitors! To rectify this problem, I’m posting a smaller one – it’s a 15×15 Hanjie,…
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…
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…
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,…