Miscellaneous
// 6 published technical guides
Misc is the catch-all category: programming puzzles, weird file formats, and challenges that blend multiple skills.
› reference guides
- 01beginner
Encoding and Decoding
Recognise and reverse Base64, hex, URL, binary, and common CTF encodings — the first skill that pays off everywhere.
- 02beginner
Scripting for CTF
Write Python one-liners and short scripts to automate repetitive tasks — iteration, bruteforcing, and service interaction.
- 03advanced
Python Jail Escapes & Sandbox Bypasses
Break out of restricted Python execution environments by traversing class inheritance trees, overriding builtins, and bypassing string/import filters.
- 04beginner
Esoteric Programming Languages (Esolangs)
Decode and analyze Brainfuck, Whitespace, Piet, Befunge, and Malbolge scripts commonly used in CTF puzzles.
- 05intermediate
Damaged QR Code & Barcode Reconstruction
Repair corrupted, inverted, cropped, or partially obscured QR codes using Reed-Solomon error correction and image restoration.
- 06advanced
Reversing Custom CTF Virtual Machines
Reverse engineer custom bytecode interpreters, virtual instruction sets, opcode dispatch tables, and VM stack execution loops.