White to move. How should White proceed?
What I thought is that white could play 1.d3+. Black has many options for that,
1...Kxd3 leads to 2.Rb3+ and winning the queen.
1...Qxd3 leads to 2.Nb2+ knight fork.
1...Kxb5 leads to 2.Nc3+ then black has the only move 2...Kc5 and then white can win by 3.Ne4+
But if black plays 1...Kd4, white can't get an immediate win.