Having drawn the knight to g8, White changes the direction of the attack.
30...g6 31.Nh7+ Kf7 32.Bh6 Ke7 33.Bg5+ Kf7 34.Bf6 Rf8 35.Rc7 Nxf6 36.Qxf6+ Ke8 37.Qxg6+ Kd8 38.Rxd7+ Bxd7 39.Nxf8 Bxf8 40.Qf6+ Be7 41.Rg8+ Kc7 42.Qc3+ Kb7 43.Rxb8+ Kxb8 44.h4
Unity Chess Club
Pavel Eljanov 2687 Loek van Wely 2676 Russia 2008 White to move
The black king is only protected by pawns, each of which is worth its weight in gold. By contrast, the white pieces are looking at the kingside, and so White has every reason to eliminate one of the enemy defenders:
If the sacrifice is accepted, White continues to eliminate one of the enemy footsoldiers after another, not minding giving up a piece for each of them: 19...Kxh7 20.Qd3+ Kh8 21.Rxg7 Kxg7 22.Nxe6++–.
21...Na5 22.Qd1 g6 23.Qf1 Kg7 24.Qh3 Rxc1+ 25.Bxc1 Rc8 26.Be3 Nc4 27.Nxg6 1-0
Unity Chess Club
Anatoly Karpov 2720 Lajos Portisch 2630 Torino 1982 White to move
The weakness of f7 is obvious, and a small combination tempting:
More tenacious is 23...Kxf7, although after 24.Rxa5 Qc6 25.Rxa8 Rxa8 26.Bxd6 cxd6 27.Qe2, White should win – the black king is exposed, and the pawns on d6 and b5 are vulnerable.