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Where is our head of challenges? Writeup(中文版)
2026-08-17
2026-09-21
IMPORTANT

This article was translated into English by ChatGPT and may contain errors. For the most accurate and complete experience, please refer to the original Chinese version.

Challenge Where is our head of challenges?(100)#

Our Head of Challenges went abroad and took a photo during the trip. Can you determine where it was taken?

Challenge

Submit the location as latitude and longitude, rounded to two decimal places, in the following format:

THJCC{longitude,latitude}

Example: THJCC{121.56,25.04}

Challenge Design Inspiration:#

Our head of the challenge-setting team said he was going to Australia, so I asked him to take a photo and let all the CTF players see if they could figure out where he went.

Solution:#

This challenge should not be too difficult. You can see a big ZURICH building in the photo, and I also know that our head of challenges went to Australia for a trip Even though the challenge description does not say so, I am sure players can still find where it is (just kidding), so we can simply search for “ZURICH Australia” and find only four results: Google Maps Opening them one by one, we find that only Zurich Financial Services Australia Ltd fits.

When I opened Google Earth, I found that it should be this building, though it looks like the company changed only recently. Google Earth

The next part is figuring out the viewpoint. Using Google Earth’s 3D feature, we can find a very similar angle:

Viewpoint

And that is pretty much it. Plenty of people solved it anyway, and AI solves it quickly too, so I will not say much more :D

Flag:

THJCC{144.95,-37.81}

Where is our head of challenges? Writeup(中文版)
https://pg72.tw/posts/thjcc-3rd-se-writeup/where-is-our-head-of-challenges_en/
作者
PGpenguin72
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2026-08-17
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CC BY-NC-SA 4.0
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