Protects a7, but Black could have had Rg8 or maybe Bh6

I debated over this move, as I fancied Ra1-e1, keeping a rook on the f-file ready for some kind of attack at the center with the f-pawn... but I didn't like the idea of having less mobility on the back rank

First Queen trade offer... this would have been better if there was a rook on f1, as Qxg3 fxg3 would have a discover attack on the Bishop, winning the f6 pawn

? Black steps back however, and gives away the pawn on e4... perhaps Rook to g8 or e8 was better

You can begin to see just how opposite the dynamics are with the Knight and Bishops - the Knights are connected and moving in on the Kingside, whereas Both Bishops are overlooking long diagonals together

? Although RxR is forced, Black now has control of the e-file

I start having hopes of attacking Black's King, starting with Na5

Black swiftly shuts off any ideas, but offers a Queen trade

Being a pawn up, I couldn't refuse

Black will soon be threatening to gain an advantage using the mobility of the Bishop pair