Link to April CTF by Brock is broken

[igorline]

Sadly kovan.etherscan.io is down.
Is there a place to see the code for the challenge?

[plotchy]

RIP. I don't have the source anymore. Maybe brock still has it, or we can make a similar, smaller challenge where calldata value is used as a jump

[plotchy]

adding that the April challenge is also nice to demonstrate the optional symbolic jump logic. the graph gets super cluttered with it. making a smaller example to showcase this would be helpful