e1e4c62Nc3d53Nf3dxe44Nxe4Bf5is a rare move on master level, but played frequently online.5Ng3Bg6is already quite bad. White can achieve an advantage with6h4!h66...h57.Ne5is also easy to remember, as now Bh7 even loses the pawn on h5Bh78.Qxh5+−7Ne5...This is a key move one should know. The Bishop on g6 is weak and thus needs to retreat7...Bh78Qh5...Might look a little weird, but is easy to explain! g7-g6 is forced and Blacks Bishop is absolutely useless on h7. This is a forced move you can easily remember, as there is a clear strategical & tactical idea behind it.8...g69Qf3Nf6This is the critical moment in my opinion. White has a very simple way to an amazing position: Play Bc4 (developing + attacking f7), then d4, Bf4 and castle short or long. Thanks to active pieces, central control, and the idiot on h7, White is close to winning without being a single pawn up. This line is easy to remember AND play.10Bc4...is just SO much easier.10.Qb3?!is the Engine line, and what the opening course recommends. Not at all a good practical choice.Qd511.Qxb7forced, if not the advantage disappearsQxe5+12.Be2e6Now you need to find one of two quite abstract pawn moves to keep the advantage. Note that only one move has a better evaluation than the simple 10.Bc4. And the most logical Qxa8 is already objectively equal and I would say easier to play for black!13.Qxa8?Most logical, but now it already gets tricky for white!Qc7!13.a4!!You might face this line once every 2 years and need to remember to play a4!! to keep the winning advantage. I'm just going to tell you: basically impossible.10...e611d4±...That is where my File would stop. Including the arrows, this is more than enough.11...Qxd4?11...Nbd712.Bf4±White has a huge advantage due to the Bishop on h7. The moves come easily: 0-0-0, Rhe1, Kb1 and so on.12Qxf6