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Daily AlpacaHack

A daily CTF challenge with a fun new puzzle every day

What is Daily AlpacaHack?

We publish one simple, beginner-friendly or educational CTF challenge every day!

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Solve within 24 hours of release to appear on the leaderboard.

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Today's Challenge
rsk0315
Floating Equality
Misc
Medium
25 solves
Submissions (latest 3)
tadanobutubutu
tadanobutubutu

SOLVED!

Jun 11, 5:09 PM

pppp4649

SOLVED!

Jun 11, 4:26 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🌱
1,877 solves
Upcoming challenges reveal the , , and in advance.
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Jun 2026

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1
admin
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2
minaminaominaminao
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Web
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3
minaminaominaminao
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4
pppp4649pppp4649
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minaminaominaminao
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6
nozokare
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tan90909090tan90909090
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tchentchen
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Web
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12
rsk0315
Floating Equality
Misc
Medium
25 solves
13
pppp4649pppp4649
Planned topicElliptic Curve
Crypto
Hard
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Planned topicJSON
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15
Planned topicHTTP/2
Web
Easy🌱
16
Planned topicPNG
Misc
Medium
17
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Planned topicHeap
Pwn
Hard
22
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28
Planned topicTBA
Pwn
Hard
29
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Writeups

tadanobutubutu

Writeup for Alpaca Certification

tadanobutubutu

ja
Alpaca Certification

1 hour ago

nirvana

Writeup for chmod-swapper

ja

16 hours ago

Daily AlpacaHackに挑戦するつくよみちゃん 06/06/Flag for localhost/nozokare

Daily AlpacaHackに挑戦するつくよみちゃん 06/10/chmod-swapper/shiragi

tadanobutubutu

Writeup for A Piece of DHKE

Daily AlpacaHackに挑戦するつくよみちゃん 06/09/A Piece of DHKE/nozokare

Rows:

Floating Equality

Topic: Floating-PointReleased: Jun 12, 2026

25 solves
Misc
Medium

by

rsk0315

USER

SOLVED AT

tadanobutubutu

tadanobutubutu

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descriptionsolves