December 21, 2024 AlGo
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December 21, 2024
By Oscar Zulu
A friend of yours sent you this image many years ago.
He seemed very agitated at the time and often spoke to you about a very specific date.
What was that date (format YYYYMMDD)?
Answer format: 20050724
Click to reveal your gift
The end of the world was predicted for December 21, 2012: 20121221.
🎁 Congratulations, your gift is a prisme opaque.
You need to have a free account to be ranked.
| # | Username |
|---|---|
| 1 | Z-F |
| 2 | Baptiste.BC |
| 3 | Momo |
| 4 | Ben 10 |
| 5 | Tani6 |
| 6 | Isolde d'Icarus |
| 7 | Grand-Duc |
| 8 | k1rif13 |
| 9 | Arthur I |
| 10 | Maël C. |
| 11 | Josint |
| 12 | Barkana |
| 13 | Loupin |
| 14 | Ragnarok |
| 15 | Th3rd |
| 16 | MBAY |
| 17 | Micka |
| 18 | R3børn |
| 19 | Kortez |
| 20 | VFD |
You need to have a free account to be ranked.
| # | Teamname |
|---|---|
| 1 | Guardians of CyberSOC @ CHU Angers |
| 2 | gpadidé |
| 3 | Les Chasseurs d’Isotopes Numériques |
| 4 | OhZinZint |
| 5 | Garenne |
| 6 | Les Mercenaires d'Oz |
| 7 | YNOV CAMPUS |
| 8 | Doctorants |
| 9 | The6Beers |
| 10 | NetNinjas |
| 11 | BrHackeuses |
| 12 | Heroes 4 Hire |
| 13 | Incompétent Détectives |
| 14 | SRNC maeT |
| 15 | Sip Turf Science |
| 16 | Polytech |
| 17 | Zenika |
| 18 | SYN - sin/Hack - ACK |
| 19 | bubmontaigne |
| 20 | Bib'SciencesPoLille ! |
Challenges
This year, we are delighted to offer you challenges written by OSINT enthusiasts and professionals:
AEGE | C'est vrai ça? | IsFred | Kase Scenarios | OpenFacto | Oscar Zulu | OSINT-FR | OSINT4Fun | OSINTOPIA | Projet FOX | Sofia Santos
- You will discover a new challenge every day at 12:30 PM (UTC+1).
- Badges will be awarded to participants based on their success. To receive them, you need an account and must have badges enabled.
- Points are awarded based on the time between the correct answer and the challenge release: less than 30 minutes 5 points, less than 1 hour 4 points, less than 8 hours 3 points, otherwise 2 points.
- Challenge creators who also participate in the ranking will be assigned the average time of the TOP 10 for the challenges they submitted (symbol in front of their name).
Organization
- Only four people know the answers to the challenges and are therefore excluded from the game: Céline Girardeau, Imaya Girardeau, Alain Godon, and Quentin Simier.
- FR/EN translations are provided by Imaya Girardeau.
- You can join the OSINT4Fun Discord server to chat with other players.
- You can follow the live challenge solving on Quentin Simier’s channel KrowZ.
- /Quentin also produces the video solution on OSINT4Fun. Videos will be uploaded the following day.
Update August 2025
Following the unification of the website, the ranking is no longer the one with points, which can still be found for example on the Wayback Machine.