Hmm, didn't notice this topic before.
I wonder if my solution to Genesis Just a Minute 2 is the intended solution? (I described it on the old forum -- basically, you repeat the Part 1 solution, except you create the holding area by having two opposite-facing lemmings dig and then bash.)
Of course I originally solved JaM2 on the Mac by having lemming 1 bash, lemming 2 dig and bash, and turning the release rate up
Now
that's certainly unintended.