Marx’s Melodic Memoir - CTF Challenge Writeup

Challenge: Marx’s Melodic Memoir
Points: 100
Category: Cryptography

Objective

The objective of the “Marx’s Melodic Memoir” challenge is to decode a given music sheet to reveal the hidden flag. Your task is to find a music sheet decoder, manually input every element from the picture, and decipher the flag.

Solution

To successfully complete the “Marx’s Melodic Memoir” challenge, follow these steps:

1. Music Sheet Provided:

   • You are provided with a music sheet that contains encoded information.

2. Find a Music Sheet Decoder:

   • Your first step is to search for music sheet decoders or tools designed to interpret encoded musical notations.

3. Manual Decoding:

   • Using the music sheet decoder you find, manually input every element and symbol from the provided picture.

4. Flag Discovery:

   • As you decode the music sheet, you will uncover the hidden flag, which follows the format: petgrad2023{XXXXXXXXXX}.

5. By following these steps and decoding the music sheet, you will successfully reveal the flag hidden within Marx’s Melodic Memoir.

Flag

The flag for this challenge is in the format: petgrad2023{XXXXXXXXXX}.

In the “Marx’s Melodic Memoir” challenge, your task is to decode the provided music sheet and unveil the hidden flag. Best of luck!