Puzzle difficulty rating
As promised, I’ve implemented a difficulty rating system in my Perfect Sudoku software and from now on I will be publishing the level for each puzzle. I’d like to get some response from you on this – how do you…
The Home of Perfect Sudoku and other puzzles
As promised, I’ve implemented a difficulty rating system in my Perfect Sudoku software and from now on I will be publishing the level for each puzzle. I’d like to get some response from you on this – how do you…
Cindy, one of our regular visitors kindly asked me to post a daily puzzle today and I couldn’t say no :). So, even that I usually don’t do it on Saturday’s – you can find a very nice Killer Sudoku…
This site was launched on September 14, so today is one month since the launch. I am happy to announce that yesterday we had 821 unique visitors to the site and more than 4000 page views. For just one month…
Ok, here is the explanation of the “Cage/fence splitting” solving technique for Killer Sudoku puzzles that I promised before. I will use the puzzle posted on Friday, October 7 and solve it step by step using this method. We extend…
I’ve posted two very beautiful puzzles today. Killer Sudoku: This one might look very difficult but after a tough first step, the solution unfolds really easy. This is at least how I got the solution :), there could be a…
Many people have asked about the Killer Sudoku posted on September 27th. I haven’t tried to solve this Killer by hand but it is very much possible that it requires either a lot of math (the technique that I call…
Another brand new Sudoku variation – Sudoku Samurai X (diagonal Samurai Sudoku) has arrived. As far as I know, this is a unique puzzle of this sort – correct me if I’m wrong. Only the visitors of this website have…
I can proudly announce that in the past 24hrs there have been 400 unique visitors to my website and more than 2200 page views. The number of unique visitors has quadrupled in just one week. For some these might be…
This tip is probably the most important solving technique of Killer Sudoku, one that will save you a lot of time. It does involve some math, but very simple one. Basically, the whole story is that you have to bear…
As of today, Monday September 26, I will be posting a new Samunamupure puzzle every day (well, don’t mind if I miss a day from time to time)! Check the “Daily Samunamupure” page for a unique, randomly generated puzzle. It…