Hello there! This study is based on Levy Rozman's Youtube video on beating the anti-London system. (so basically the anti-anti-London system.) you should probably already know the London System, but here's a quick review.1d4...We start off with d4. Fairly normal.1...d52Bf4...And now, this Bf4 move is the first step into our London adventure! White will keep the center solid with a 'pawn pyramid' with e3 and c3, and usually will follow up with a kingside attack! A example line might go:2...Nf63e3e64Nd2...Remember not to play Nf3 too early, as Black may have tricks with c5 and Qb6.4...c55c3Nc66Ngf3Be77Bd3O-O8Ne5...And we reach the middlegame. White will cement that monster knight on e5 and attack on the kingside, as said before. If you really want to go in more depth, then you should check out some other studies in lichess.org, because there are tons of awesome repertoires based on the London System. Here's one: lichess.org/study/KjivNw7F