Main lineA50
1. d4 Nf6 2. c4 Nc6
In the centre, White holds d4.
A50
Mexican Defense
2 named lines in this family, ECO A50. Every one of them opens 1. d4 Nf6 2. c4 Nc6, 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. d4 Nf6 2. c4 Nc6
- 1. d4 Stakes a claim in the centre, controlling e5, and frees the bishop and queen.
- 1... Nf6 Develops the knight to f6, eyeing d5 and e4.
- 2. c4 Fights for d5 from the flank - contesting the centre without committing a centre pawn.
- 2... Nc6 Develops the knight to c6, eyeing d4 and e5. Theory calls this the Mexican Defense.
Horsefly GambitA50
1. d4 Nf6 2. c4 Nc6 3. d5 Ne5 4. f4
In the centre, White holds d5.
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.