If R1 is obstructed by F6 and misses second base, what is the ruling?

In the scenario where R1 is obstructed by F6 and subsequently misses second base, the ruling is that R1 is safe at third and not out. When a runner is obstructed, they are considered to have been impeded in their progress. This obstruction by F6 impacts R1's ability to legally advance, and the rules provide that the runner cannot be penalized for missing a base as a result of this obstruction.

In this case, R1 is granted the ability to advance to the next base—third base in this instance—despite missing second base because their progress was hindered. The obstruction takes precedence over the missed base, allowing R1 to remain safe as a result of the interference from the defender. Thus, R1 is awarded the base they are attempting to reach, which reinforces the principle that obstruction is designed to protect runners from being unfairly penalized due to defensive actions that prevent them from executing their base-running duties.