London System
Also called London.
White sets up the same solid structure against almost anything: d4, Bf4, e3, Nf3, c3.
Its appeal is economy: one set-up, learned once, against most replies. It is played at every level, from beginners to world champions. The usual move order is 1.d4 d5 2.Nf3 Nf6 3.Bf4; playing 2.Bf4 at once is called the Accelerated London.
New to chess? The examples here use it. Play your first moves (five minutes), then learn chess from the beginning, one short lesson at a time.
Want more? Puzzles on this from real games, on Lichess, free and with no account. They are not counted in your progress here.
Learn and practise it
- Lesson: A map of the openings