News:

15/12/25: Day 13 had two trees very close together. Tree has now been cut down. 

9/12/25: Day 8 error should now be corrected. Had to add some additional information to the task.

9/12/25: The gift submission form is having an upgrade. Once ready, you will be expected to submit the gift names exactly as shown in the bold text on the password pages. The form is auto marked by magic.

Additionally, this years advent will run until December 16th. I will take us up to December 12th, after this Mr. Kershaw will offer the challenges for the final 4 days (expect devilishly hard tasks on these days!). See days 13-16 as an extension task. I am sure that your teacher will reward your efforts whether you have done 12 or all 16 days.

5/12/25: Day 5 I got to without an error! Thanks to two helpful form comments the day 5 Magnetic Tiles extra space has now been fixed! I hope you are enjoying. Things will slowly increase in difficulty. If you have puzzle ideas please send them through. We are always building our puzzle bank.

Initial blurb:

Work your way through a series of coding problems. Each day a new task will appear. solution will provide you with a reference number. Using the passwords page you can then look up the number and gain the required password that will unveil the gift behind the advent door. 

Once you have the password simply add it to the URL as follows

https://sites.google.com/view/codeadvent/????

(You'll need to replace the ???? with the password of course!)

The tasks are generally designed around Python but other languages are available (perhaps not Fortran?)

We know that with a little effort, the site's subpages etc. can be found and we know that if you put the problems through AI it will ( / might) do it for you. You are here because you want to write coded solutions! By being here you are already doing more than most CS students around the country so well done!

Feedback

Please share your (nice and useful) comments/possible improvements etc.

Link

tremendous website. my favourite ever ever ever ever. I will be back... 

Mr Dellow is the best computer science teacher I have had EVER. This website is very well designed and it is very fun to do. Thank you very much sir :)

Here are some archive comments:

~~~

thank you so much for doing these !! i really enjoy them and it's very fun to work them out with my friends :) 

~~~

I've been doing these programs with my computer science class in the UK. We've enjoyed it! 

~~~

PGCE student here - loved today's, never played with assert statements before, so huge thanks! A welcome decompress after spending a chunk of today writing up one of my uni assignments and good CPD to boot 

~~~

Please help with Dec 6th!? I'm going out of my mind! 

~~~

Our students have thoroughly enjoyed these challenges. A really good end of term activity. 

~~~

Thanks so much for doing this and sharing. I've used this for a few years now - the students really engage with the challenges. 

~~~

Im doing this with my school and its really good, im only 14, keep doing it! 

~~~

These are great, thanks, the biggest help they've given with the students I work with are about reading the question. And then explaining back. We've had several chats about does a space count as a character. Love them, thank you for doing them, would love to do one for next year.

~~~

Thank you, we've used this in previous year at Bishop Luffa, my students are enjoying this year's version.