Diagonal Anti-Knight Sudoku - 1

Hi All, We had posted this puzzle on our website on 17-May-2020. It turned out tougher than it looked but Tiit Vunk, the 2016 World Sudoku Champion, smashed it in just 4 minutes. Thought will share with you all who did not get to solve it online.

Rules of classic Sudoku apply. Additionally, digits do not repeat on both the marked diagonal lines and a digit also cannot repeat in a cell which is at a knight's step(as in chess) from itself.

Jigsaw Sudoku Tutorial

Hi All,

Today we made a video on how to approach a Jigsaw Sudoku, aka Irregular Sudoku. Hope this will help people get over their fears of irregular shapes. I still remember how I used to hate this variant initially :)

You can head over to our YouTube channel and check out our videos.

The tutorial can be accessed at this link.

Anti-Knight Untouch Sudoku 1 - 2020

(K)Night King Sudoku.

Hi All,

It had been a long time since I posted a puzzle on the blog. With the website being active for the last one year, I have been busy creating and providing free puzzles there for you all to solve online. If you haven't been there yet, I suggest you head to sudokumaniacs right now and register.

So today's puzzle is a combination or a hybrid sudoku as it is called. The rules of classic sudoku apply. Additionally, each of the 9 digits cannot repeat at a knight's step from itself and also at a king's step from itself. So it is a combination of 2 chess moves.

Hope you all have fun solving it. It is only a slightly difficult side. Happy Solving.