Direct and indirect attacks are both attacking a square.
If two rooks are lined up on a square containing a pawn, you would say you had two pieces defending the pawn, not one direct and one indirect.
My answer was correct, as if both sides have pieces hitting a square, one is attacking it, one is defending ;)
Semantics. I took it to mean both sides, because it's more of a challenge.
It's just as easy however it's phrased.
The piece can be any piece from the starting 32, including promoted pieces and kings (as long as the king is the very last piece to take the attacker in case an exchange happens, which would be fun to see haha.) Albeit, it is probably impossible to put the king in such position with the rooks, sincei t would always be under check.
I do apologize! I never took into account pawn promotions!