[AtlUmpSteve]

1. No run can score on any play where the BR does not reach first safely. 9-1-1 exception 1.

2. The apparent answer 9-1-1 exception 4 (resulting in a force out) would seem to be no run scores. But there is a twist in this play; B4, a trailing runner made the third out. Therefore, the force was removed prior to the appeal, so the runs would score. If the third out was made by any other runner, leaving the force in effect, the runs would not score.

If you have doubts about this, consider if this play happened with one out, and B4 made only the 2nd out. If the ball remained live, and even though there was no logic to doing so, could R3 legally retreat, and touching all bases in reverse order, return to first base? I say yes, and therefore no longer required to advance as a result of the batter having become a batter-runner (not forced).