The Colle-Zukertort Transposition is a variation of the Rubinstein Opening, catalogued as ECO D05. The line runs 1. d4 d5 2. Nf3 Nf6 3. e3 e6 4. Bd3 c5 5. b3 Be7 6. Bb2 O-O, reaching the position shown below after 12 half-moves.
Both sides have pawns in the centre (White on d4, Black on d5), and one pawn capture is available, so the structure has not settled yet. Development is level at three minor pieces each. It is White to move after six moves. Black has castled while White’s king is still uncommitted.
On the Rubinstein Opening generally: ECO D05. 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 10 Rubinstein Opening variations →
The Colle-Zukertort Transposition goes 1. d4 d5 2. Nf3 Nf6 3. e3 e6 4. Bd3 c5 5. b3 Be7 6. Bb2 O-O. It is a variation of the Rubinstein Opening and is catalogued as ECO D05.
The Colle-Zukertort Transposition is ECO D05. ECO codes group openings by their move order, so nearby codes cover closely related lines of the Rubinstein Opening.
Stockfish evaluates the position after 1. d4 d5 2. Nf3 Nf6 3. e3 e6 4. Bd3 c5 5. b3 Be7 6. Bb2 O-O at +0.15 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), and one pawn capture is available, so the structure has not settled yet. Development is level at three minor pieces each. It is White to move. Black has castled while White’s king is still uncommitted.