Ciro Santilli @cirosantilli 40

Good and portable, used it a lot to work in cafe's to go together with my laptop stand.

Bought 2018.

I don't use it much because it is too tall and does not fit in well with table heights and my anatomy, shame!

Bought 2026-05 after the Timberlands were damaged during trip to Scotland.

Waterproof.

Low version since I'll use it mostly for commuting.

Size: UK 10.

Rented it for one week in 2026.

Compared to my Golf mk6:

Bad:

Good:

Synonym to science makes progress funeral by funeral.

2026-04-29: MartinSmith Ukelele Model: UK-212-PNK-A. Picked up from nursery slightly broken. On Amazon: www.amazon.co.uk/dp/B00413PFDE £25.63 as of 2026-04-29. To repair it buying:

2026-03-31: Hohner Special 20 Harmonica - C Major (M560016P) www.amazon.co.uk/dp/B0DXLH3SVJ £37.15. Now that's an instrument that's hard to make sound out of!

Popped up for Ciro Santilli on April 19th 2026 after solving Project Euler problem 993.

The problem is available only as an image. Furthermore, the problem image itself, i.e.:

wget -O secret.png https://projecteuler.net/resources/images/bonus_secret_statement.png?1738588439

(I hope it's not fingerprinted to my login lol) must be passed as an input of your solver.

The output of the program is another image of Euler with caption:

so and the final answer must be inferred to be the string:

Leonhard

ChatGPT web 5.4 solved it directly from the image.

This section is about official bonus problems of Project Euler.

These sometimes pop up after you solve another problem, and it is not well documented when they show up.

According to their copyright statement, these problems are copyrighted unlike the others, so we can't reproduce them here. But we can give answers I believe.

A partial list can be found at: github.com/igorvanloo/Project-Euler-Explained/tree/main/Bonus%20Problems

This section is about the main problems as opposed to the bonus Project Euler problems.