With the previous example in mind, the intentions behind this little move should be obvious now.
This maneuver is typical of the sort of Pirc position which arose in Bryne-McShane, Malmo 2003 . In that case the (almost forced) queen transfer from the d-file was less successful.
Here White was not so much aiming for the a2-g8 diagonal, but for a more active location for the queen in general.
The liquidation of central pawns and rooks has led to a symmetrical pawn structure, but White still has some pressure with his pair of bishops. He managed to turn his advantage into a win.
Creeping Queens (part Two)
The French Defence features a similar maneuver.
The French Defence features a similar maneuver.