Started with the common purpose that we need to choose a dress using toss (yes/no) for each dress :
Positive way (we find a direct tree to the goal) :
3 (from) > 3 (yes) > 2 (yes) > 1(yes)
or gives :
3 > 1 (means 2 no at first shot)
or gives :
3 > 2 > 1
So 9 moves for a first direct approach to the goal, that we can x3 to let a chance to each entity to get its tree ^^ = 27 moves for something fair (let's close the eyes and take one dress randomly, it's easier ^^)
First intention, be clement pls :D
ps: *see > as a toss*