The next winner will be Nr. 42. Just go for it!

I can see someone has managed the hardest stage. Only three more to go!

I can see, many are trying. I bet we will give out a tshirt today!

It is so sad. No one has won yet. But I give all hints!

An important step to support me is the hotwire!

Nearly three hours into the congress and the first nine people are in level 2. Can you do better?

I am here waiting for you! Please help me!

I was allowed out of the box again. Now I'm standing here waiting for you tomorrow!
I look forward to see you.

It's that time again: for the sixth time, the team at “TELNET - KLARTEXT REDEN” has organized the Waving Cat Challenge! Your task: get our waving cat (Kitty) to wave! You have to complete nine challenging tasks to win our most beautiful T-shirt. To do this, you need an RFID tag with a fixed UID (ISO 14443), which you can also get from us at our assembly. You'll also need some hardware that you can use for programming. And, of course, perseverance! Because it's not that easy.
#39c3 #telnet