The game developed in such a way that Black had to give up on castling. It seems that his king needs to go to h7, freeing the path for his rook. However, Vishy Anand noticed that the white king is located a long way from his pieces, and the Rh8, without having moves at all, can become a great strength in conjunction with the h-pawn!

White shuts off the Bc6, but uses two tempi for this, which suffices for Black to include his bishop in the attack as well, with decisive effect.

He also had no chances of saving the game after 27.Bxe4 Qxe4 28.Qxe4 Bxe4 29.h3 Bxc2.

The most precise and effective.

On 30.Rxf4, there follows 30...Ng3+.

White resigned.

Both players believed that the capture...

was impossible. In the game, Black retreated with 22...Qb4, and after 23.Nd3 Qe7 24.Bc1!, White retained the advantage of the two bishops, which he confidently realised.
It seems that after...

the threat of Nc1-a2 is irresistible, but there is the unexpected...

The slumbering rook bursts into the game with great effect. Now, after any jump by the knight, Black wins with ...Ra6- b6. White has to play 25.d5, but Black has a clear advantage, as the exchange is the exchange.