PR 2022 R5 - Loops & Shading ( 3rd to 8th June )


Instructions Booklet
Puzzle Booklet ( 8 pages )
Timing / More Information
Online Solving
Discussion Thread

Online solving using Penpa is enabled in this contest. Make sure to read the F.A.Q. on online solving before starting the contest.

Supported browsers : Latest versions of Google Chrome, Microsoft Edge, Opera. At this point, we do not support Firefox.


Madhav Sankaranarayanan

The official period for "PR 2022 R5 - Loops & Shading" is over. However, you can participate unofficially using this link.

Your timer will start when you click "Start PR 2022 R5 - Loops & Shading" — then you will have 60 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

Not submitted Wrong Correct
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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.