You must netcat to a connection. Upon doing so, you see a CAPTCHA message.

1. Run [keygen.py](https://github.com/lobcus/Cyber-Challenges/tree/master/XMas-CTF%202018/The%20ultimate%20Christmas%20game) in the respective folder to obtain the string needed to bypass the CAPTCHA

Now, you must beat the computer at a game of nim.

2. Get nim's game logic from Wikipedia (should be a python file) and beat the computer using it

This was done with manual inputs in the nc. Probably, it would've been better to write a program that would automate this.