
Solution

1.Bxd5+ Kxd5 2. e4+, followed by Kxc4 is a forced sequence whereby white wins an important pawn and exchanges into a winning endgame.
1.Bxd5+ Kxd5 2. e4+, followed by Kxc4 is a forced sequence whereby white wins an important pawn and exchanges into a winning endgame.