Welcome to CodeCracker
Your premier destination for Science Olympiad Codebusters practice
Sharpen your codebreaking skills with our interactive practice platform. Whether you're a beginner or an experienced codebuster, we have exercises to challenge and improve your abilities.
Practice Cipher Types
Aristocrat Ciphers
Monographic substitution ciphers where word spacing and punctuation are preserved. Perfect for beginners!
Patristocrat Ciphers
Similar to Aristocrats but without word spacing, making them more challenging. Test your skills!
Morse Code
Encode and decode messages using sequences of dots and dashes. A classic communication method.
Atbash Cipher
A simple substitution cipher where each letter is reversed (A=Z, B=Y, etc.). Easy to learn!
Caesar Cipher
A shift cipher where each letter is shifted a fixed number of positions in the alphabet.
Affine Cipher
A monoalphabetic substitution cipher that uses mathematical functions for encryption.
Aristocrat Cipher Practice
Decode the message below by figuring out the substitution pattern
Patristocrat Cipher Practice
Decode the message without word spacing to make it more challenging
Morse Code Practice
Decode the message using Morse code patterns