Study,study,study

White to play and win

Solving studies is a good way to improve your chess but it isn't for everyone. Like solving cryptic crosswords, you either get them, or you don't. But also like cryptic crosswords, once you crack the code, you can usually solve lots of them quite easily.
I'm not sure where this study fits in to that theory. It is White to play and win, and to be honest, the first few moves kind of suggest themselves. With Black threatening to promote on c1, White's first few moves are designed to deal with this. It then gets more interesting after that, and the full solution is quite entertaining. But like a lot of long studies, it turns out that while there is one line that fits the overall theme, there is an alternative line which is a lot less fun.