Finished as 30th, when we still had to actually work to get the answers (shortly after that everyone just started posting the answers in the IRC channels). Level 8 was a really nice challenge. After completing the challenge I managed to optimize my level 8 solution a lot, so much that it managed to finish in under 3 minutes by only doing roughly 2400 API calls (2000 for the bruteforcing itself, 400 to compensate for other players).
https://gist.github.com/38c0430b5084f8442858 for those who are interested. There aren't many comments in there though