Kybersoutěž AKA Czech Cybersecurity Competition is a "CTF" for high school/university students in the Czech Republic. It consists of two rounds and finals. The first round is a survey covering basic CS terms and definitions. The second round, which is covered in the blog post, is more CTF-like. Both take place online. After them, if you qualify, you go to the final, which is an on-site one-day CTF. Individual phase in the morning followed by a team phase in the afternoon. If you do good in the finals, you enter a pool of participants from which you can qualify for the ECSC Czech Team for that year.