Black is clearly better.

Advancing the pawn majority and preparing to activate the last piece by Ra2-d2.

A strange move. 2...Rc8 was preferable.

Black desists from disputing the open file. 5...Nf6 6.Bf3 Rd8 must have been better.

The rook reaches its ideal square and ...e6-e5 is prevented.

White enjoys an overwhelming advantage.

Intending ...f7-f5 and ...e6-e5 to advance the kingside pawn majority.

Preferable was 2.g3 f5 3.Bg2 e5 with just a slight black edge – Dolmatov.

Now these two pawns control considerable space, and they can prove useful in a future kingside attack.