It’s Your Move: daily chess puzzle #338

White to play and win

Urzica v Ghinda, Romania 1974

Solution

The first move is a nice biff: 1 Bd6! driving the queen away, by 1…Qa6.

What does the Bd8 move achieve? Nothing to do with the Black Q (which isn’t LPDO) but to gain access for the Q: 2 Rg7! Kg7[] 3 Qg5+ and now the Q and B operate well: Be7+ and Bd6 follow.