
White to play
The solution is: 17.Nd6+! Qxd6 [17…exd6 18.Bxf6 d4 19.Qxd4 Nc6 20.Qf4+-] 18.Qxc8+ Kf7 19.Bb5!+- Bg7 [19…Qb6 20.Be8+ Kg7 21.Rab1 Qa6 22.Bb5] 20.Qxb7 Rd8 [20…a6 21.Ba4] 21.Qxa8 Qb4 22.Rab1 Qxh4 23.Be2 f5 24.g3 1-0
White to play
The solution is: 17.Nd6+! Qxd6 [17…exd6 18.Bxf6 d4 19.Qxd4 Nc6 20.Qf4+-] 18.Qxc8+ Kf7 19.Bb5!+- Bg7 [19…Qb6 20.Be8+ Kg7 21.Rab1 Qa6 22.Bb5] 20.Qxb7 Rd8 [20…a6 21.Ba4] 21.Qxa8 Qb4 22.Rab1 Qxh4 23.Be2 f5 24.g3 1-0