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Daily AlpacaHack: AlpacaHack 2100

Daily AlpacaHack: AlpacaHack 2100

December 1, 2025
1 min read
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Hello everyone, welcome to my blog post!

In this post, I’ll be solving a challenge from the new feature released on AlpacaHack — the Daily Challenge. With this feature, we get a fresh challenge to solve every day. For Day 1, we received a Misc challenge, so let’s dive in and break it down together!

Description

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Translation

🦙 < The flag is the alpaca in the January 2100 calendar for Daily AlpacaHack.

Understanding the challenge

According to the challenge description, the flag is hidden somewhere in the January 2100 calendar. Our goal is simply to navigate to that specific time period in the web app to retrieve it.

Solution

First, we move to the next month to observe how the URL parameters change.

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We can see that the month is controlled through a URL parameter:

Terminal window
https://alpacahack.com/daily?month=2026-01

To jump directly to January 2100, we just update the parameter:

Terminal window
https://alpacahack.com/daily?month=2100-01

And just like that, we got the flag.

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Flag

Alpaca{brought_AGI_to_humanity..._yes,_Alpaca*GentleIntelligence.}*