Italian Game · if they play 3...Nf6
C55 · Italian Game: Two Knights Defense, Modern Bishop's Opening · you play White
This is the branch for when your opponent leaves the Italian Game main line with 3...Nf6.
The idea
Against the Two Knights, d3 guards e4 so nothing hangs. Castle, Re1 and c3, then the same slow build as the main line.
The moves
1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Be7 5. O-O O-O 6. Re1 d6 7. c3
Free, no sign-up. The board plays the other side and you play every one of your moves. A line you miss comes back tomorrow; one you get comes back after 3 days, then a week, then three weeks.
Opening names from the Lichess chess-openings list (CC0). Every line was checked move by move by the rules engine. Part of Chess Path, a free chess course.