There is no official challenge so we made our own based on the implementation available from the OpenWhiteBox project.
Ref: https://github.com/OpenWhiteBox/AES
target
contains compiled versions (with remotely-applied and locally-applied external encodings), instructions how to compile them by yourself, and instructions how to use it, as well as the solution (the key to recover).traces
contains explanations on how to acquire a visual trace and snapshots used in the tutorial.