The strongest and most energetic, not losing a single tempo!

18...exf5 19.e6 Rg8 20.exf7+ Kxf7 21.Bg2, with a strong attack.
18...Qc7 19.fxe6 Bxe6 (19...fxe6 20.Nf6+ Kd8 21.Nxd5 exd5 22.Qxd5+ Ke8 23.Bc4 Rf8 24.Rhf1+–) 20.Ng7+ Kd7 21.Nxe6 fxe6 22.Qxg4 Qc6 23.Bh3, with the initiative.

Now, the threat of a sacrifice on d5 hangs over Black.

23...Rxf5 24.Bxe6 Qxd4 25.Bxf5++–.

The d6-pawn is Black’s main problem. But to press on it conveniently, White needs to secure some space on the light squares, and this task is achieved by...

With the exchange of light-squared bishops, Black loses his last hopes of counterplay. White can put his rooks on d3 and d1, and Black can no longer hassle them with a bishop from f5 or g4. In another situation, Black could try to activate his position a little with ...b6-b5, but in this position, such a break is impossible.

White gradually seizes space for his pieces – the rook on d5 assists the advance of the a-pawn, if White wishes.

This wins at once, so White is able to dispense with further manoeuvring and strengthening of his position. But now imagine that the d6-pawn was defended. In this case, White can strengthen his position with the moves Kg1-g2 and a2- a4. Later, depending on circumstances, he can play a4-a5, or advance the h-pawn with h2-h4, further restricting the black bishop, and creating the potential threat of h4-h5.

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