The Main Line, 4.e3 Be7 5.Bd3 is a variation of the Torre Attack, catalogued as ECO A46. The line runs 1. d4 Nf6 2. Nf3 e6 3. Bg5 d5 4. e3 Be7 5. Bd3, reaching the position shown below after 9 half-moves.
Both sides have pawns in the centre (White on d4, Black on d5). Development is level at three minor pieces each. It is Black to move after five moves.
On the Torre Attack generally: ECO A46. A chess opening with 6 known variations.
You can play through this variation move by move in your browser — Learn mode walks the line with an explanation at each step, and Drill mode replays it from memory so you find out whether you actually know it. No account is required.
See all 5 Torre Attack variations →
The Main Line, 4.e3 Be7 5.Bd3 goes 1. d4 Nf6 2. Nf3 e6 3. Bg5 d5 4. e3 Be7 5. Bd3. It is a variation of the Torre Attack and is catalogued as ECO A46.
The Main Line, 4.e3 Be7 5.Bd3 is ECO A46. ECO codes group openings by their move order, so nearby codes cover closely related lines of the Torre Attack.
Stockfish evaluates the position after 1. d4 Nf6 2. Nf3 e6 3. Bg5 d5 4. e3 Be7 5. Bd3 at +0.19 at depth 18, which is balanced. Engine evaluation is only a starting point — at club level the practical value of a line is mostly about whether you know its plans better than your opponent does.
Both sides have pawns in the centre (White on d4, Black on d5). Development is level at three minor pieces each. It is Black to move.