White is to move, and Black has a knight under attack.

It turns out that we can first attack the queen, creating in the process the deadly threat 18.Qxc4+. In the game, there followed 17.Qxf5 Qd5 18.Qf3 Qxf3 19.Nxf3 Bf6, with Black having sufficient compensation for the pawn. After:

Thanks to the pin on the bishop, the c4-pawn is lost as well. White is winning.

If we now simply take the bishop, then White’s advantage in the opposite-coloured bishops position will be minimal. Instead, White sees a tactical motif, connected with the unstable position of the black rook and the insufficiently protected black king on h8.

Even more precise than 25.Rxb7 g6.

Black resigned.

With his last move, Black exchanged the light-squared bishop on d3. Everything would be fine for him if White had to take back on d3, but there followed the zwischenzug:

Allowing a forcing finish.
Bad was 24...Qf8? 25.Bxg7 Rxg7 26.Rxg7+ Qxg7 27.Qxe6++–.
The most tenacious was 24...Qe7! 25.Bxg7 25...f4! 26.Rg4 Bf5 27.Bf6+ Bxg4 28.Bxe7 Rxe7, but here too, there follows 29.d5! (29.Qxf4 Rg7!) 29...Rf8 30.f3 Bf5 31.Qxf4+–.

We have a sharp position on the board. It seems as though Black is winning, but it is important to find the correct order of moves. Calculating straightforward variations does not yield the correct answer:
A) 28...Re2? 29.Rxf3! Qxf3 30.Qxe2 Qxf4 31.Qxe6+=;
B) 28...Rd5+? 29.Kc1! (29.Ke1 Qc2!) 29...Qxa2 30.Qa4∞;
C) After 28...Qe2+!?, Black still has to show his endgame technique: 29.Kc1 Re4 30.Qxe2 fxe2 31.Re1 Rxf4 32.Rxe2 Kf7 33.Rd2 Ke7 34.Rg2 Kf6 35.Rd2-/+
Instead, he decides the game with:

Because of 29.Qxb5 Qe2+ 30.Qxe2 fxe2+ 31.Ke1 exf1=Q+ 32.Kxf1 Rf5–+.