What is recorded if R1 attempts to steal second but the throw to second is missed by F6 or F4?

When R1 attempts to steal second base, and the throw to second base is missed by the fielder covering the base (F6 or F4), the situation indicates that R1 successfully advanced to second base despite the error in execution by the fielding team. In this case, R1 is credited with a stolen base because the attempt was legitimate, but the play is also classified as a team error because the fielder failed to catch the throw, which is an expected part of the play.

The stolen base is awarded to R1 because they made a bona fide attempt to steal, and their advancement to second base did not occur as a direct result of normal defensive plays. Instead, it resulted from an error on the part of the defense. This combination of events—R1 stealing successfully while the defense mishandles the situation—validates the answer of it being a stolen base along with the designation of a team error.