# Challenges
Choose a topic, check the difficulty and work towards your next solve.
Challenges marked Computer need a terminal or desktop tools.
22 challenges found | filtered
Page 1/2
Smart deal
Smart deal or smart dill?
Obsidian
You've found the portal to the Nether and saved the coordinates on the map. Take your pickaxe, dig for the last piece...
Wires
zTXt
Public Decryption Formula
Public Decryption Formula (PDF) is the ultimate hacker's dream cheat sheet! It's a top-secret recipe to unl...
Konia 3310
Win the game! Flag format: LearnIT{[a-z]*}
Glue-inator
Doofenshmirtz created a new evil device, the splitter-inator, you have to create a glue-inator and repair the picture.
Ducks Tossing Mini Frisbees
In a dimly lit alleyway, a secret agent known as "Whisper" swiftly handed you a note before disappearing into the nig...
Curse Hunter (2)
As you're running toward the location, a 27-year-old guy approaches you and starts talking. "Hi, my name is Ijichi...
Art
Can you find the secret behind this picture?
Schrodinger Files
A file that exists and does not exist at the same time.
Quantum Cookie Jar
A quantum experiment with cookies. Spooky action at a distance.
PyJail 2
A tighter Python jail with more characters blocked. Think creatively to break free.
PyJail 1
You are trapped in a Python sandbox with restricted input. Escape the jail by executing code despite the blacklist.
Regex
Ten rounds of pattern matching. How sharp are your regex skills?
Maze
Navigate through a series of mazes. Speed and precision are key.
Cursed Math
Cursed math equations hidden behind strange characters. Can you keep up?
Math Challenge
Hangman
A classic game of Hangman. The word might be simpler than you think.
Bear Ninja Cowboy 4
The game adapts to your play style. Can you outsmart an opponent that learns from your moves?
Bear Ninja Cowboy 3
The computer picks its moves using a random number generator. But is it truly random?