Disputing the open file.

This doesn't help White, but it was difficult for him to find a constructive move.

Now Black's pieces are very active.

10.Rxc2 Qxc2+ 11.Kh1 Qe4+! with similar consequences.

White resigned.

Intending Rh3 with attacking prospects, as well as Rd3 to increase the pressure towards d6.

By a sensible knight manoeuvre Black managed to parry the Qh6+ threat, as well as any sacrifice with Nf5+. However, the knight is now passive on g8.

White reverts to his main target, the d6-pawn, now that the black knight is no longer defending it.

Before taking the pawn Potkin improves his knight.