2 Knights vs. 2 Rooks
I've been into studying positional exchange sacrifice recently, and it seems natural that I've been sacrificing a lot of them too. Yesterday I managed to sacrifice two in one game, Petrosian style. Here it is.
I like the position after 40 moves (g7-g5). It shows what exactly exchanges were given for - black knights control all the board and pain chain is very strong while white rooks have no objects to attack.