Many coaches agree that solving endgame studies is one of the best ways to improve your chess skill.
This study, composed exactly 100 years ago by a Latvian master, was used in the Minor Section of the Winton British Chess Solving Championship in February.

Hermanis Mattisons Latvis 1926
There’s always good news and bad news in these positions, but here the news is mostly bad.
It looks like the black pawn will cost you your rook, while your only remaining pawn isn’t going to last long.
This will leave your lone king facing bishop and knight, which is a win (and if you don’t know how to force checkmate with bishop and knight perhaps you should learn).
You need to be creative and imaginative to discover how you can avoid defeat here.
It’s a bank holiday today, so you’ll have plenty of time to work it out. May the Fourth be with you!