This is a problem that I composed a few years ago. It has not been widely published, so the chances are that you will not have seen it before. It is not too complicated, but it does have some surprise twists.
Here it is, presented as a puzzle:
White to play and win. After the obvious 1.Rxd7 Kxd7?, 2.Bb5+ wins outright. But Black has a resource, namely 1...Ra8! This frees up the c8 square, making Kxd7 a real threat.
Now White has two pieces en prise, and 2.Bb5 leads nowhere. So what can he pull out of the hat here? Well he has the remarkable resource 2.Rd8+!!. White sacrifices a whole rook on an unoccupied square. After 2.Rd8+!! Rxd8, 3.Bb5+ Rd7, 4.f5! he has a permanent pin on the Black Rook.
Black is helpless, while White marches his King to c8, and captures the Rook.
Finally, here is the whole puzzle in one browser:
This us my first post on chess.com, and I hope you have enjoyed reading it. After lurking for a long time, it has been great fun to finally play around with the editing tools. I have been very impressed by how easy it is to create an interactive experience for the reader.