September Sudoku Contest 2023 ( 22nd to 28th Sep )


Riad Khanmagomedov

The official period for "September Sudoku Contest 2023" is over. However, you can participate unofficially using this link.

Your timer will start when you click "Start September Sudoku Contest 2023" — then you will have 75 minutes to solve and submit your answers.

A timer will be shown the answer page with the remaining time.

If you have any questions or doubts or suggestions, please ask in the forum.

Instant Grading

Instant Grading is not enabled in this contest. You will not be notified if any puzzle submitted is correctly or not.
You must be logged on before you can start the contest.
Password for Puzzle Booklet :

In case the website goes down, send an email to with the answer keys. Anything within time will be considered, but only in the case of the website being down.