If a unit is standing (for example) 1,5cm behind an obstacle (for example a wall) can it be charged? Bases are usually 2cm wide so there is no space to place them touching the defenders bases as there is only 1,5cm between the obstacle and the defender. And placing the attacker of the other side of the obstacle prevents base contact,.
How to solve this?
I had a similar situation yesterday. I had a unit of Moloitsy 3 rows deep attacking a unit over an obstacle (12 bases of Moloitsy against 3 bases of Disorganized Pancerni. Very tempting). I had enough space for two rows but the third rows didn't had enough space to be placed on the same side of the obstacle as the first two rows. I had enough movement to reach base contact with the target unit.
We just ruled that the Moloitsy are now Disorganized and just proceeded the close combat as usual. I won through sheer numbers

But did we do it the right way?
And another one:
If a unit enters a building then has the complete unit to fit inside? Or can i split off a number of bases? For example: A unit of 12 bases of Moloitsy wants to enter a building with a capacity of 6 bases. First they have to be given a Defence Order so that they can perform Special Maneuvers. Then a Commander has top spent a Command Point. Can i now place up to 6 bases inside the building? Or am i not allowed to do this?