Spoiler: Trick List B: - auto pilot x 2 (tap and move slider to redirect B) - low ceiling (B acts strangely with a low ceiling and may travel over stairs that B can't normally do) R: - eye poke (walk thru a rail) - auto pilot (once) Spoiler: Video Solution
Probably a few variations in the middle as my two wins were different. My win was similar to video though i used a different bot to push the lowest ball. The video seemed to show a risk of B getting pushed off level diagonally opposite winblock but i jammed R in with B to ensure facing the correct direction after the push.
I got stuck trying to get R to autopilot . Anyway, I don't think i would've been able to win without the help of the video .. there are a number of points where it isn't clear what to do next. But once i understood the sequence of tricks, it was lots of fun, and quite a few lessons too. At least i can get R to autopilot now ! Thanks