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Daily AlpacaHack

A CTF challenge series with fun puzzles to enjoy every day

What is Daily AlpacaHack?

We regularly publish simple, beginner-friendly or educational CTF challenges!

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Solve each challenge within its time window to appear on the leaderboard.

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Discussion with friends or AI is welcome (account sharing is prohibited).

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Today's Challenge
admin
QUIZ ALPACASHOCK
Misc
Welcome🌱
43 solves
Submissions (latest 3)
xnmhuveb

SOLVED!

Sep 1, 5:39 AM

guren

SOLVED!

Sep 1, 3:31 AM

Leaderboard

Try the first challenge

Is this your first CTF? Let's begin by tackling the first challenge released on Daily AlpacaHack.

View challenge
admin
AlpacaHack 2100
Misc
Welcome🌱
2,174 solves
Upcoming challenges reveal the , , and in advance.
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tchentchen
Springing
Web
Medium
56 solves
1
admin
QUIZ ALPACASHOCK
Misc
Welcome🌱
43 solves
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Want a harder challenge?

Go to B-SIDE

Writeups

tchen

Writeup for Xwitter

tchen

author
en
Xwitter

2026/08/29 05:39

alpha0314sub

Writeup for Flag is A+B

ja

2026/08/29 01:57

power

Writeup for Encoding Basics

ja

2026/08/26 12:20

power

Writeup for Bars

ja

2026/08/26 08:34

Rows:

QUIZ ALPACASHOCK

Topic: WelcomeReleased: Sep 1, 2026

43 solves
Misc
Welcome🌱1.5

by

admin

"What question number is it now?" *

--

Answer, in flag format, which A-SIDE challenge number today's challenge is since Daily AlpacaHack was released. For example, if it is the 100th challenge, the flag will be Alpaca{100}.

Hint
  • Do not count B-SIDE challenges.
  • If you are solving it on the release day, the answer is also shown as the all-time challenge count in the Solves statistics.
  • If you are solving it later, count the A-SIDE challenges released through September 1, 2026, on the Daily AlpacaHack calendar.

(AI-translated)

Please sign in to submit the flag.

descriptionsolves