Main lineA40
1. d4 e6
In the centre, White holds d4.
A40
Horwitz Defense
2 named lines in this family, ECO A40. Every one of them opens 1. d4 e6, 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 e6
- 1. d4 Stakes a claim in the centre, controlling e5, and frees the bishop and queen.
- 1... e6 Supports the centre, adding control of d5. Theory calls this the Horwitz Defense.
Zilbermints GambitA40
1. d4 e6 2. c4 e5
In the centre, White holds d4 while Black holds e5.
- 2. c4 Fights for d5 from the flank - contesting the centre without committing a centre pawn.
- 2... e5 Challenges the pawn on d4 - the central tension has to resolve. The pawn is genuinely on offer - this is the Zilbermints Gambit: development and initiative over material.
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.