• Don’t prevent other teams from having fun.
• Don’t share flags or hints, or you’ll be banned.
• Don’t attack (e.g. DoS) our infrastructure, or you’ll be banned.
• Don’t do automated scanning. It will be considered to be DoS.
• The flag format is TSGCTF{blahblah}, unless otherwise specified.
• The prize will be paid with PayPal. If it doesn't suit you, we can pay that in BitCoin at an arbitrary exchange rate we determine.
• The teams must publish the writeups of the solved problems in CTFTime to get their prizes.
• The number of members in a team is unlimited.
• People who belong to TSG are not allowed to participate in TSG CTF.

Support

If you have issue with TSG CTF, please contact us by joining official Discord server, and clicking "Create Ticket" button in the #ask-admin channel.

About “beginner” challenges

If you are unfamiliar with CTF, we highly recommend you to first take a look at the challenges with "beginner" tag. They will be released at the same time as the CTF launch.

In TSG CTF, Beginner's tasks are not "beginner-level challenges." We define a beginner's task as a challenge that does not require any experience or knowledge specific to CTF, but can be solved with knowledge that even a beginner has. Please don't be discouraged if you can't solve a "beginner's task". At times it can be hard!

Release Schedule

Disclaimer: This schedule is tentative. We will make the best effort to deliver these challenges as planned. However any changes are expected anytime.

07:00 (UTC)

Genre	Difficulty	Author
pwn	beginner	@LLUUIIGGEE
pwn	hard	@mikitorium08
web	beginner easy	@fabon
rev	beginner	@mikanami
rev	easy	@mikitorium08
crypto	beginner easy	@settyan117
crypto	easy-med	@JP3BGY
crypto	hard	@JP3BGY
misc	easy	@sh-mug

09:00 (UTC)

Genre	Difficulty	Author
pwn	easy-med	@caphosra
web	med	@dai
crypto	easy-med	@jiei-univ
misc	easy	@azatorium08
misc	med	@dai

11:00 (UTC)

Genre	Difficulty	Author
pwn	med-hard	@iwashiira
web	med	@fabon
rev	med	@iwashiira
crypto	easy	@jiei-univ
misc	med	@moratorium08

13:00 (UTC)

Genre	Difficulty	Author
pwn	med	@iwashiira
rev	med	@mikit
crypto	easy-med	@jiei-univ
misc	med	@iwashiira