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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
0 solves
Submissions (latest 3)No submissions yet.
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🌱
2,222 solves
Upcoming challenges reveal the , , and in advance.
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Sep 2026

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怀
tchentchen
Springing
Web
Medium
74 solves
1
admin
QUIZ ALPACASHOCK
Misc
Welcome🌱
136 solves
2
hiikunzhiikunz
base 16-32-64
Misc
Easy🌱
110 solves
3-4
tan90909090tan90909090
Let's Shut Down Linux
Misc
Medium
67 solves
5
baumroll1234
Vending Machine: Revised Version
Misc
Easy🌱
90 solves
6-8
minaminaominaminao
Bitflip RSA
Crypto
Hard
56 solves
怀
minaminaominaminao
Bitflip RSA
Crypto
Hard
56 solves
9-11
minaminaominaminao
ļ¼¼^o^ļ¼
Misc
Hard
44 solves
12-13
tan90909090tan90909090
sin function vs. fsin instruction
Rev
Misc
Medium
55 solves
14-15
tan90909090tan90909090
integer division
Misc
Medium
72 solves
16-18
edwowmathedwowmath
neighboRhood_diStAnce
Crypto
Hard
42 solves
19-21
hiikunzhiikunz
nested eval
Misc
Hard
50 solves
怀
hiikunzhiikunz
nested eval
Misc
Hard
50 solves
22-24
2501
The 3rd
Crypto
Hard
36 solves
25-26
haihuiliyuyuan
typhoon-pythoon
Rev
Medium
42 solves
27-30
k0080k0080
what is my pointer 2
Pwn
Hard
0 solves
怀
k0080k0080
what is my pointer 2
Pwn
Hard
0 solves
1
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2
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3
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4
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Writeups

Writeup for The 3rd

baumroll1234

ja
The 3rd

2026/09/24 21:08

Rows:

Xmas Login

Topic: SQLReleased: Dec 25, 2025

503 solves
Web
Easy🌱2.0

by

hiikunz

hiikunz

USER

SOLVED AT

kinnringo

2026/09/25 08:10

2026/09/23 01:27

2026/09/21 08:52

2026/09/15 11:07

2026/09/15 08:22

2026/09/12 00:16

2026/09/09 12:50

2026/09/09 12:14

2026/09/08 10:20

2026/09/08 01:04

2026/09/07 11:56

2026/09/07 08:20

2026/09/07 06:41

2026/09/06 22:26

2026/09/05 20:02

2026/09/04 13:35

2026/09/01 19:22

2026/08/30 01:26

2026/08/27 10:51

2026/08/26 09:03

2026/08/24 07:55

2026/08/22 23:39

2026/08/22 09:04

2026/08/22 02:19

2026/08/21 14:55

Rows:

descriptionsolveswriteups