This one is near and dear to my heart.
Back in 1999, when I was coaching, I conjured up this play named Chaos.
I wrote to M. Butler at the time for an interpretation and ruling.
I actually designed it to be run with bases loaded as a way of getting R1 an opportunity to score. No advantage if just 1st and 2nd.
As previously posted, you cannot invoke LBR because with 2 runners on the same base, it is the equivalent that they are "still running", and the only way to resolve it is to tag the runner that doesn't belong there.
The way Chaos was designed to be run, was that when F1 made a throw towards 2B, R2 would run towards 3B and R3 would run back towards 1B, drawing a run-down, and of course, R1 scores easily in the confusion.
And as previously noted, if the defense kept a "cool head" and made no play, after several seconds umpire kills the play and returns R3 to 1B.
Footnote: I printed the email from MB and would review with UICs before the first game of the tournament to get UIC agreement of the final ruling after potential protests, which I felt would be inevitable. Had a couple tell me that they would not rule in my favor, so I would not run the play in those tournaments.
Only ran the play once and it failed miserably, and never ran it again.
