Balance a river shoving range HU IP, aka the simplest spot to balance a range in poker.
Figure out how much you need to bet on a turn to avoid giving your opponent implied odds on a flush draw.
Figure out how much more likely your opponent is to have AA if it folds to you in the SB pre-flop in full ring as opposed to 6-max.
Use ICM to find a shoving range on the bubble in an SNG.