1...Nxf4 2.Qxf4 Kh8 would be better. But after 2...Bxe4 3.Rxe4 White is much better thanks to his strong bishop and the weakness on f7.

This lets the d-pawn advance, but after 3...Rad8 4.Rad1 that pawn should also tell in the long run.

White is winning.

Eliminating the strong knight on f4 and preparing 2...Bh5, to simplify into an ending with a good knight vs. a bad bishop.

3.Bg2 , declining the bishop exchange, then 3...Qa8 , preparing ...Qa2 and ...Ra8-a3 with strong pressure.

Mission accomplished; the knight clearly outshines the bishop.

By the threat ...h5-h4, Black provokes a new weakness.

8.h4 Rg8 9.Rd1 Qg7 10.Qf3 Kh6 11.Kg2 Ra8!

With 12...Ra2+ coming up, Black is clearly better.

Initiating favourable exchanges in order to install an eternal knight on e5.