For Starship's 6th test flight,

An additional objective for this flight will be attempting an in-space burn using a single Raptor engine, further demonstrating the capabilities required to conduct a ship deorbit burn prior to orbital missions.

https://www.spacex.com/launches/mission/?missionId=starship-flight-6

Resolves YES if a Raptor engine relights while in space and completes its burn successfully. Otherwise resolves NO (including if it fails, or if it is not attempted for any reason).

E.g. if SpaceX states that they commanded an early shutdown due to any problem, that's a failure. It would also resolve unsuccessful if Starship explodes for any reason before the burn completes, regardless of whether it's due to an engine problem.

If the mission never attempts the engine relight, for example because Starship explodes before it can happen or they just decide not to attempt it, resolves NO as well.

Only one engine completing the relight and burn is sufficient for YES even if others fail.

This question is about the next Starship mission that is planned to reach space (100km altitude). The question will remain open until that test occurs.