Notifications

We have updated the code to support queueing and stability improvements (some of you may have noticed this earlier). An alternative server has also been added. To connect, use either nc challs.thinkerpal.me 36167 OR nc challs.nusgreyhats.org 36167

https://six-seven.challs.thinkerpal.me:36767/

We will be retiring gh.jloh02.dev as it is rather sluggish. Reminder that if you do have manual submissions (non-bot), please take a video and open a ticket. If you are writing a bot, please ensure it passes the anti-cheat too! (It can take a minute or two)

For misc/old soviet terminal, we're aware that there are issues with uptime due to load. We've been updating the code and seeing how we can resolve this.

PLEASE CHECK DISCORD ANNOUNCEMENTS FOR POLL DETAILS

Hi all, the link in the challenge description is currently down, please use this alternative link here: https://six-seven.chal.zip/

We've brought the main challenge server back up. We recommend still using greyctf.jro.sg so we can load balance and see how dockerd (and instancing) responds to the traffic again.

Hi all, the connection info for the elite ball knowledge challenge has been updated in the challenge description. You may test your working solve scripts on the new host.

greyctf.jro.sg

we're currently restarting all hosted services, do give us a couple of minutes

crypto/filter flag will be down for updates

misc/An old soviet terminal will be down for updates

Hi everyone, an alternate download for the dist for crimewatch, fort knockkies and grey yuumi have been updated on ctfd. No change to the dists have been made

Hi everyone, we will be fixing the infra for the elite ball knowledge challenge. In the meantime, please test the challenge locally. We will announce when it has been fixed.

Hi everyone, the flag for my-greycat has been updated. Do resubmit your old flags if they didn't work before.