
White to play
The solution is: 20.Nf6! Rh8 [20…gxf6 21.exf6+ Kxf6 22.Nxh7+ Ke7 23.Bg5+ f6 24.Nxf6 Kf7 25.Nxg8+-] 21.Nxe6 Kxe6 22.Nd5 Ra7 23.Bg5 h6 24.Bd8 Kd7 25.e6+ [25.e6+ fxe6 26.Ne7+ Ke8 27.Nxg6+-] 1-0
White to play
The solution is: 20.Nf6! Rh8 [20…gxf6 21.exf6+ Kxf6 22.Nxh7+ Ke7 23.Bg5+ f6 24.Nxf6 Kf7 25.Nxg8+-] 21.Nxe6 Kxe6 22.Nd5 Ra7 23.Bg5 h6 24.Bd8 Kd7 25.e6+ [25.e6+ fxe6 26.Ne7+ Ke8 27.Nxg6+-] 1-0