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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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Today's Challenge
admin
Baby Alpaca
Misc
Welcome🌱
45 solves
Submissions (latest 3)
zszushi

SOLVED!

Oct 1, 6:51 AM

Leaderboard

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

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admin
AlpacaHack 2100
Misc
Welcome🌱
2,235 solves
Upcoming challenges reveal the , , and in advance.
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Jan 2026

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29
kanonkanon
one-p-rsa
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30
soon-haarisoon-haari
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31
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1
admin
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Misc
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2
kanonkanon
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3
hiikunzhiikunz
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4
minaminaominaminao
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Web
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483 solves
5
kurenaifkurenaif
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Misc
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399 solves
6
minaminaominaminao
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Misc
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334 solves
7
hiikunzhiikunz
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Crypto
Medium
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8
arkark
secret-table
Web
Medium
338 solves
9
hiikunzhiikunz
SwapSwap
Misc
Easy🌱
344 solves
10
theoremoontheoremoon
RSA2026
Crypto
Medium
242 solves
11
keymoonkeymoon
crazython
Rev
Medium
228 solves
12
hiikunzhiikunz
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Pwn
Medium
225 solves
13
tchentchen
I wanna be the Admin
Web
Easy🌱
385 solves
14
arkark
free-comment
Misc
Hard
170 solves
15
hiikunzhiikunz
Five Alpacas
Crypto
Easy🌱
228 solves
16
k0080k0080
Short Writer
Pwn
Hard
146 solves
17
minaminaominaminao
Base Length
Misc
Medium
184 solves
18
hiikunzhiikunz
dice roll
Web
Medium
249 solves
19
chocoruskchocorusk
ChaChaCha
Crypto
Medium
187 solves
20
k0080k0080
system-v
Rev
Hard
130 solves
21
arkark
dockerstack
Misc
Easy🌱
205 solves
22
hiikunzhiikunz
Animal Viewer
Web
Medium
190 solves
23
minaminaominaminao
Bashrunner
Misc
Hard
137 solves
24
yu212yu212
Paca Paca Authenticator
Crypto
Medium
152 solves
25
tchentchen
Stateless Auth
Web
Medium
206 solves
26
keymoonkeymoon
git gc
Misc
Medium
174 solves
27
chocoruskchocorusk
ToyPQC
Crypto
Hard
121 solves
28
tchentchen
No JS
Web
Medium
162 solves
29
k0080k0080
shellcode-101
Pwn
Medium
168 solves
30
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Crypto
Hard
125 solves
31
arkark
optimal-sort
Misc
Hard
112 solves
1
admin
Camelidae
Misc
Welcome🌱
451 solves

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