But really, what I should have done is this, which would lead to an almost guaranteed win (playback at 32:57):

Edit: This replay was accidentally done with a modified build in which the turn timer stopped counting down before it ran out, resulting in a desynchronization when played in standard builds. I have now added a second attachment, redoing this win, as a standard replay which will play properly. It was actually rather hard to recreate – the HHG usually does not cause a plop, and doesn't cause enough direct damage to be a kill; I got lucky the first time getting it in only 2 attempts.

Edit #2: There are two ways for blue (danie's team) to defeat this and win anyway; the HHG already demonstrated opens a 9 pixel wide gap, making it possible to rope through (attachment #3). This is extremely difficult though, and basically a TA-only move, much more difficult to pull off unassisted than the HHG plop.
But if the Mortar crate is not collected by red, it becomes MUCH easier to get the HHG plop unassisted, and the gap is no longer ropeable even with TA. However, there's still a gap between the protruding root and the ocean that is TA-ropeable (attachment #4), although also extremely difficult and probably essentially impossible to do unassisted.