**Question:** Is there a deadline for forming teams? E.g. can individual participant join together during any phase? **Answer:** The composition of the teams can be changed during a small time window between each round of the Challenge. Once the round has started, the composition of the team can not be changed until the end of the round. New teams can register during this time window. Individual participants that are not already part of a team can join during any phase of the challenge, but they cannot join together and form a team before the end of the round.