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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
k0080k0080
what is my pointer 2
Pwn
Hard
20 solves
Submissions (latest 3)
xnmhuveb

SOLVED!

Sep 27, 10:46 PM

edwowmath

SOLVED!

Sep 27, 1:51 PM

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🌱
2,225 solves
Upcoming challenges reveal the , , and in advance.
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Sep 2026

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tchentchen
Springing
Web
Medium
74 solves
1
admin
QUIZ ALPACASHOCK
Misc
Welcome🌱
139 solves
2
hiikunzhiikunz
base 16-32-64
Misc
Easy🌱
115 solves
3-4
tan90909090tan90909090
Let's Shut Down Linux
Misc
Medium
67 solves
5
baumroll1234
6-8
minaminaominaminao
Bitflip RSA
Crypto
Hard
56 solves
 
minaminaominaminao
Bitflip RSA
Crypto
Hard
56 solves
9-11
minaminaominaminao
\^o^/
Misc
Hard
44 solves
12-13
tan90909090tan90909090
sin function vs. fsin instruction
Rev
Misc
Medium
56 solves
14-15
tan90909090tan90909090
integer division
Misc
Medium
73 solves
16-18
edwowmathedwowmath
neighboRhood_diStAnce
Crypto
Hard
42 solves
19-21
hiikunzhiikunz
nested eval
Misc
Hard
50 solves
 
hiikunzhiikunz
nested eval
Misc
Hard
50 solves
22-24
2501
The 3rd
Crypto
Hard
36 solves
25-26
haihuiliyuyuan
typhoon-pythoon
Rev
Medium
44 solves
27-30
k0080k0080
what is my pointer 2
Pwn
Hard
20 solves
 
k0080k0080
what is my pointer 2
Pwn
Hard
20 solves
1
Coming soon
2
Coming soon
3
Coming soon
4
Coming soon

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Writeups

Writeup for typhoon-pythoon

lumma

ja
typhoon-pythoon

22 hours ago

gattoartz

Writeup for base 16-32-64

ja

2026/09/26 23:00

Rows:

Catrunner

Topic: Path TraversalReleased: May 25, 2026

145 solves
Misc
Easy🌱2.0

by

minaminao

minaminao

USER

SOLVED AT

harada166

2026/09/26 07:14

2026/09/25 07:29

2026/09/23 08:59

2026/09/14 13:13

2026/09/11 12:57

2026/08/30 17:53

2026/08/27 13:12

2026/08/23 00:27

2026/08/21 19:20

2026/08/11 01:25

2026/08/10 17:01

2026/08/07 12:31

2026/08/07 11:13

2026/08/04 03:24

2026/08/02 00:02

2026/07/22 11:01

2026/07/15 02:13

2026/07/12 15:53

2026/07/10 01:18

2026/07/08 02:37

2026/06/24 13:50

2026/06/20 07:41

2026/06/18 19:51

2026/06/18 09:39

2026/06/18 07:11

Rows:

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