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Author Archives: djape
Comments
There were quite a few comments from our visitors, especially on the Daily Killer Sudoku page, which makes that and other pages load slow. Therefore, I have moved some of the old comments to this new category. If you’d like to read what other people had to say about our puzzles you may find the […]
Posted in General, Killer Sudoku
Tagged Daily Killer, Daily Killer Sudoku, FREE, killer, killer sudoku, UPDATE
969 Responses
Puzzle difficulty
First of all, I posted a Killer X puzzle rated THINKER for today. I would like to know how difficult you find this one. Regarding the INSANE puzzle posted on Friday – I see that there has been a lot of discussion regarding it’s difficulty and the difficulty of some other puzzles posted last week. […]
Posted in Killer Sudoku
Tagged Cage Splitting, Classic Sudoku, Daily Killer, Daily Killer Sudoku, EASY, hidden subsets, innie, INNIES, INSANE, IQ, killer, killer sudoku, Killer Sudokus, outie, OUTIES, solving technique, SUBSETS, technique, THINKER
3 Responses
Diagonal Samurai Sudoku
Samurai X for Saturday, October 29 – this is the only place you can find these kind of Sudoku puzzles! Basically, not only do you have to fight against 5 interconnected Sudokus, but you also need to be carefull about the diagonals: ALL diagonals in the puzzle must contain one occurrence of each 1-9 digit. […]
You Asked For It!
As promised, I just posted a puzzle with the rating that is currently in the lead in our poll. And that, apparently, is INSANE. This puzzle requires all Killer techniques + it requires some advanced classic Sudoku techniques (match subsets etc). It does not require trial and error! I hope someone will solve it without […]
Posted in Samurai sudoku, Solving tips
Tagged Classic Sudoku, EASY, innie, INNIES, INSANE, IQ, killer, outie, OUTIES, samurai, SUBSETS, technique
12 Responses
Take it Easy
I realised that I’ve never posted an “Easy” Killer puzzle. So, in preparation for the weekend I just uploaded a new puzzle, rated Easy. By the way, which ever “difficulty” is in the lead tomorrow – I will post a puzzle with that rating. It look like it’s either going to be “IQ” or “Insane”. […]
Complex innies/outies – part two
I saw two comments (by Graham and David) for the puzzle posted on October 25, and I think there’s a little clarification on “complext innies/outies” that should be made here. You should look for innies/outies in more than just one row/column/nonet. This is a good example of such puzzle. See this image: Click on the […]
Posted in Free sample puzzles, Killer Sudoku, Solving tips
Tagged innie, INNIES, outie, OUTIES
3 Responses
Changes in difficulty level
I must let you know that I’ve been working on improving the part of my software that determines the difficulty of a puzzle. Therefore, for the puzzle that I will post in a few moments, if you try to open it in “Perfect Sudoku” software, you will get a different rating from what’s indicated in […]
New poll
I’m closing the Mobile phone poll. I’ve been so busy with other things so I’m not sure when will I get my head around implementing Perfect Sudoku for mobiles. Here are the results: Anyhow, here is the new poll – choose your preferred level of difficulty for our Killer puzzles. It will affect which puzzles […]
101 Perfect Killer Book
It is my pleasure to announce that we have partnered with Via Optima publishing house from Portugal and that they will be printing a book with Perfect Killer Sudoku puzzles! The book should be available in bookstores around mid November. At the moment, it will be published only in Portugal. We are looking for publishers […]
Posted in Bookstores, General, Killer Sudoku, Puzzle books
Tagged BOOK, books, bookstore, FREE, killer, killer sudoku, Portugal
1 Response
Cool your brains!
According to the comments, a lot of people enjoyed the IQ Killer posted on Friday. It’s time to cool your brains off a little, with the today’s “COOL” puzzle. For those who haven’t had enough, I posted a really tough Diagonal classic Sudoku. We’re doing quite well on the top 50 Sudoku sites list. A […]
