Exploiting the unstable position of the black queen on d7, White carried out a decisive attack:

Taking the rook also loses: 22...Kxe7 23.Re1+ Kd6 (23...Kd8 24.Ne6+ Ke7 25.Nc5+) 24.Qb4+ Kc7 25.Ne6+ Kb8 26.Qf4+.

Or 24...Kf8 25.Nxh7+.

Black resigned. There could follow 25...Kg8 26.Rg7+ Kh8 27.Qh4+! Kxg7 28.Qh7+ Kf8 29.Qh8+ Ke7 30.Qg7+ Ke8 31.Qg8+ Ke7 32.Qf7+ Kd8 33.Qf8+ Qe8 34.Nf7+ Kd7 35.Qd6#.

The black king is weakened, and White brings up additional forces:

The correct idea in an inaccurate form. More accurate was the preparatory 17.Rab1!, and only after 17...b5 (on 17...Qc7, there is the strong 18.c4!, and 18...dxc4 is impossible because of 19.Re4) 18.Re3 – with the same threat of g3-g4.

Black misses the chance to save himself by a pawn sacrifice to activate his pieces: 17...Nd7! 18.g4 Nxe5 19.dxe5 f5 20.Rh3 Rf7 21.gxf5 Qb6!, at the same time defending g6 and aiming at f2. White’s pawn structure is broken, and so his winning chances are few, and the most likely outcome is a draw.

Exploiting the dark squares, White conducts an attack.

Now, there is another possibility – a knight on f6 and a rook on h3.

In view of the threat 31.Rxh5, Black resigned.