In the game, fearing the strong black passed pawn on c3, White forced a draw: 57.Rb8 Bd6 58.Rd8 Bb4 59.Rb8 draw.

Bad was 57...Bc5 58.Rc7 Bd4 59.Rc4 Be5 60.Ke3+– – the white king helps to hold back the c-pawn.

Other continuations also lose:
A) 58...Bd6 59.Ke2 Kb2 60.Rb7+ Kc3 61.Rb6 Bc5 62.Rc6 Kb4 63.Kd2+–;
B) 58...Bc5 59.Rc7 Bb6 60.a7 Bxc7 61.a8=Q+–.

61.Rd6 Kb3 62.Rc6 Bc3 63.a7 c1=Q 64.a8=Q Qh1+ 65.Ke2 Qe1+ 66.Kf3 Qe4#.

When calculating the variations at move 57, one must not only reach this position, but also see the following, quiet move, otherwise White actually loses!

Black is defenceless against the promotion of the white pawn, which means his position is lost. If even such a creative GM can pass by such a possibility, then for other players, working on finding such quiet, prophylactic, but important moves, must be something that is of enormous importance.

Active prophylaxis. Black defends his king against the threat of e4-e5, and wins an important tempo by the attack against d4.

On the passive 20.Rd1, Black continues to play on the dark squares with the move 20...Kf8! – the king goes to a safer square and defends the Re8, which is necessary for the threat of ...Nc6-b4.

The dark squares are creaking, and the queen faces a discovered attack.

This nice exchanging operation ensures Black a decisive advantage in the endgame.