Black is winning.

Initiating an attack and provoking a weakness in the enemy pawn structure.

1...g6 was more solid, when White could try 2.Qh6 Bf8 3.Qh3 followed by Ne4, eyeing the new weakness on f6.

One more provocative measure to soften up the black defence.

As a result of Black's first move, 5...g6? now fails to 6.Bxg6 fxg6 7.Qxg6.

The last piece joins in with decisive effect.

White soon won.

Provoking e3-e4 in order to restrict the bishop on g2 and gain control of the dark squares.

4.Qb3 Qf6 5.Qb2 Ra4 with a clear initiative.