Boden's Mate
The Peruvian Immortal
The game is won using the checkmate known as Boden's mate.
Most commonly used when you opponent castles queenside, and usually involves sacrificing a piece to open up the diagonal.
The two Bishops checkmate in a criss-cross type fashion.
Problems
Mate in 1. White to move.
Mate in 2. White to move.
Mate in 2. White to move.