White: Ke2, Rg3, Nb3, e4, f3
Black: Kf4, Qg7, e5
Solution:   1. Nd4 – Qxg3

                  2. Ne6 (Mate)  

Initially this move avoided stalemate provoked by Rxg7 

1. Nd4 – Qd7
2. Rg4+ -Qxg4 
3. fxg4 – exd4
4. Kd3 (Gain)

The move Nc5 avoids the response Qd7