Study Time: An Oldie From Platov

Not as old as one from Plato, but chess as we know it today wasn't around back then. And "Platov" is ambiguous: there's Mikhail and Vassily, brothers who often produced joint compositions. The one here is by Vassily alone. (HT: Chess Today) The first entry is the position to solve, the second one provides the solution. (And do your best to ignore the bottom right of the overall window!)