lol I found a way to do 30 without even messing with the ball at the top
1. Place the first horizontal board on the right edge of the board already on the map and wait for it to settle
2. Then place the second board on the board you just placed where about a fourth of it is left to the right
3. Quickly place the last board in a place where it will make contact with the box
If done correctly it should knock the box off of his perch.
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