Main line, through 1... d5A00
1. b4 d5
In the centre, Black holds d5.
A00
Polish Opening, with d5
2 named lines in this family, ECO A00. Every one of them opens 1. b4 d5, 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. b4 d5
- 1. b4 Opens the c1-a3 diagonal for the bishop. Theory calls this the Polish Opening.
- 1... d5 Stakes a claim in the centre, controlling e4, and frees the bishop and queen.
Main line, after 2. Bb2A00
1. b4 d5 2. Bb2 Nf6 3. Nf3
White's queenside bishop takes the long diagonal.
- 2. Bb2 Fianchettoes the bishop onto the long diagonal, pressuring d4 and e5 from a distance.
- 2... Nf6 Develops the knight to f6, eyeing d5 and e4. It also props up the d5 pawn.
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.