Practice challenges
Use the links below to explore our archive of practice challenges. These challenges are free to use and are intended to give competitors a taste of the style and complexity of our CTF.
Contact us for access to our beginner guide of challenge walkthroughs.
PECAN+ Challenge Coin
2022 Challenge Coin
Intermediate
PECAN+ 2023 may be over, but this is still a fun challenge!
2023 Challenge Coin
Intermediate
PECAN+ 2024 may be over, but this is still a fun challenge!
Cryptography
Love letter
Easy
A student has encrypted a secret message to send to their girlfriend...
Encoded
Easy
Decoding an ELF binary (encoding not crypto)...
Rock 'N' Roll
Advanced
Rock band 'Primus' released an old notebook to the public...
Forensics
3D flag
Easy
This flag is in 3 dimensions...
ABC company
Intermediate
You've captured some network traffic...
OSINT
Kidnapped part 1
Easy
A 6-year-old child has been reported missing...
Kidnapped part 2
Easy
Can you find the kidnapper's flight...
Kidnapped part 3
Easy
Where did they end up...
Reverse Engineering
All your base
Intermediate
Can you find the access code?
Steganography
Head in the clouds
Easy
Day dreaming and looking at the clouds...
Matchy matchy
Easy
Apparently there's a hidden message inside...
Take note
Intermediate
time for a little night music...
The nerd
Intermediate
Exif? Never heard of her...
Aloha
Intermediate
An empty PDF?
Steg Cat Practice
Intermediate
Another steg practice.
Web exploits
Bite my shiny metal...
Easy
Bender's programming is malfunctioning...
Lamb Source 1
Easy
Can you help Chef Ramsay...
Mr Robot
Easy
Can you find the directory containing the flag...
Agent-007
Intermediate
Your mission is ready...