You may start "September Sudoku Contest 2025" any time between 9/11/2025 12:00:01 AM IST and 9/17/2025 10:59:02 PM IST. (Server current time 9/7/2025 6:33:48 PM)

Your timer will start when you click "Start September Sudoku Contest 2025" — then you will have 62 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.