Black playing the scilian defence.

Quite aggressive opening move i think better would be to develop the second knight

Black is playing for a fiencheto bishop on the king side

castling the king away early to a safe kingside

Black continues with his idea of the Bishop to g7 and bringing his knight out and castling to a strong kingside.

Continues development

black is looking to break up the centre with a pawn d5

Preparing for d5 by defending the e4 square.

This move has a few good ideas one is to defend the knight at c6 so as to not weaken pawn structure if Bxc6 and also preparing for d5

This is a weak attempt to prevent the pawn thrust as its easily countered by g6