Main line, after 2. b4A15
1. c4 Nf6 2. b4
No pawn stands on d4, e4, d5 or e5 - this line is played with the centre squares empty.
- 2. b4 Opens the c1-a3 diagonal for the bishop. Theory calls this the English Orangutan.
A15
English Orangutan
2 named lines in this family, ECO A15. Every one of them opens 1. c4 Nf6, so the notes on those moves are written once, just below, instead of once per line. Under each line you get its moves and the sentences it adds that this page has not already printed. A line's own page carries up to its first 4 per-move notes in full.
The moves every line here plays
1. c4 Nf6
- 1. c4 Fights for d5 from the flank - contesting the centre without committing a centre pawn. Theory calls this the English Opening.
- 1... Nf6 Develops the knight to f6, eyeing d5 and e4. Theory calls this the Anglo-Indian Defense.
Main line, after 2. Nf3A15
1. c4 Nf6 2. Nf3 g6 3. b4
- 2. Nf3 Develops the knight to f3, eyeing d4 and e5.
- 2... g6 Prepares the fianchetto: the bishop will take the long diagonal via g7. Theory calls this the King's Indian Formation.
Walk these lines on a board
An account opens every move's note in this family, the plan behind each line, and a trainer that plays the line back at you. It is free.