Black is also worse after 17...gxh4 18.Nf4 Qd7 19.Bh3 0-0-0 20.Nxe6 Qxe6 21.Ng5!? Qg8 22.Rxf5 Kb8 23.Kh2+/=. Although the white king is exposed, Black cannot bring up any reserves to attack it, as his knights on b6 and c6 are virtually just spectators. This means that White effectively has two extra pieces on the kingside!

18...Bxg5 19.Bxg5 Qd7 20.Nf4±.

The f5-pawn cannot be held.

Black resigned.

White has a bishop that has no good square. After his next move, however, such a square appears, and the black king is seriously weakened:

Other replies are no better.

Black resigned.

Black lands a blow at the most vulnerable point:

A picturesque position. White is completely stalemated.

There is no defence against the transfer of the bishop to f2. White resigned.