I found this one from the chessbase website (first round report by Albert Silver). This position is from the game between Sam Shankland (USA) and Joan Fernandez Lopez (Andorra) after black’s last move 15. – Qb6? White can get a winning position. But how?

The obvious 16. b5 doesn’t work. What will? It took me a while to figure this one out, and of course I didn’t see all the variations. But at least I found the wining move. 🙂 Solution…