I played in the online county championships in the open section for Worcestershire vs Cumbria, david cleak was white against me.
It is easier to write out the moves here- how to combat the London System which used to be known as a safe boring system but I have a way of making safe systems quake.1 d4 Nf6 2 Bf4 [signalling he wants a boring London System] 2..c6 [ a surreptitious reply that is acting all innocent] 3 e3 g5!![a move designed to look like a patzer move but...] 4 Bg3! [if 4 Bxg5?? Qa5+ wins the Bishop on g5] 4...h5! [threatening h4 and if d6 next move, then i have won the bishop] 5 h3 Ne4 [the idea is hidden again to play Qa5+ when Nc3?? would be met by Nxc3 bc Qxc3+ with a won game technically but the knight being on e4 offers other opportunities and forces white to play either Bxb8 or...]6 Bh2?! Qa5+ 7 c3 Qf5?! [a very dubious move but white was threatening b4, i thought of playing Qb6 to get the Queen on a better square but after the move I played it is Black who must be careful after 8 Qc2! when white is threatening 9 f3 and if 8...Qh7?? 9 Bd3!? d5 10 f3 wins a piece but after 8 Qc2! Nd6 9 Bd3 and white has a small pull] 8 Bxb8?? [a terrible blunder!!! because...] 8...Qxf2 is mate.