ctf-writeups

Train Mania

Difficulty: Easy
Author: Quack

I recently stumpled upon this cool train! But I'd like to know a bit more about it... Can you please tell me the operating company, model number and its maximum service speed (km/h in regular traffic)?

The flag format is brunner{OPERATOR-MODELNUMBER-SERVICESPEED}.
So if the operator you have found is DSB, the model number RB1, and the maximum service speed is 173 km/h, the flag would be brunner{DSB-RB1-173}.

A video is provided in the attachment. Take a snapshot, and ask AI:

The operator is SJ, the model name is X2. From Wikipedia, the top commercial speed is 200 km/h.

So the flag is: brunner{SJ-X2-200}.