The blocks needed for the holes are obvious and the fact they are directional removes big part of the challenge, especially when we realize how much moves it consumes just to go to pick them down there...
After getting the other one, I got this one first try! So happy to finally cleared this to myself. :))
Very good puzzle! That seems soooo simple, but only AFTER one finds the solution. And this is exactly what makes a great puzzle, imo.
Insights