Plachutta!

The Plachutta is a device found in chess problems. A piece sacrifices itself on a square where it could be captured by one of two similarly-moving pieces for example, a bishop and a queen moving along a diagonal, or two rooks moving along a different line; whichever black piece captures, it interferes with the other. Plachutta theme is named by Joseph Plachutta. This game by Tarrasch is an brilliant  example of a Plachutta.