Monthly Archives: October 2005

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 [...]

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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 [...]

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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 [...]

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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 [...]

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Download Perfect Sudoku Solver & Generator

From this page you will always be able to download the latest release of Perfect Sudoku. The current version is Perfect Sudoku v0.4 Two most important things about this version: 1. This version is absolutely FREE! No annoying “about” dialogs and “please register” reminders. This of course means you can freely use the software for [...]

Posted in General, Killer Sudoku | Tagged , , , , | 2 Comments