With 1. Qg1 White sets up four pretty mates:

1. Qg1 Kd5 2. Qc5#
1. Qg1 Kd6 2. Qd4#
1. Qg1 Kf4 2. Bc7#
1. Qg1 f4 2. Qc5#

From Chess Strategy: A Collection of the Most Beautiful Chess Problems, 1865.