It is white to move. How should white proceed?
I don't have time for a full analysis this morning, but 1.f5 looks powerful here- black can't play Bxf5 without allowing Rd5 spearing the queen and bishop. If black tries 1....Bxa2, then b4 opens a discovered attack on the bishop while attacking the black queen. Finally, if black retreats the bishop to c8, then white plays 2.Bb5 Rf8 3.Nd5 with a powerful attack.