A nice miniature by Petrov. Black is taught the hard way to think twice about grabbing pawns in the opening...
For me, the star move of the game. Petrov sets the bait: "Here... Here it is: this nice, fat, shiny, juicy centre-pawn... Here, take it... Come on, go ahead now, you know you want it..."
Sure enough, Black can't resist, and grabs the pawn, ignorant of the fact that he will lose the game at once by doing do. Greed is one of the seven deadly sins...
. Of course, Black should have castled:
. 11.Qxc4 Bd6 ⩲
. Maybe, White is slightly better, but Black has a game.
Follow some comments on an already lost game.
On f6, the black queen is running out of squares, as Petrov will prove soon enough. Nevertheless, 11...Qf6 is probably the best Black has.
. Black will have problems castling.
. Probably better, not allowing Bf4 or Bg5.
. A bit more stubborn would have been:
. 15.Nd6+ Qxd6
. 16.Rxd6 Bxd6
. Giving up the queen inmediately, for a rook and knight.
Gallery play by Petrov, pleasing the crowd.
Black just wants to get it over with as soon as possible.
. The way of the sadomadochist would be:
. 16.Bxg6 Nxg6