ECO Chess Codes D3Queen's Gambit Declined, Orthodox Defence
D30 - Queen's Gambit Declined/Orthodox Defence
1. d4 d5   
2. c4 e6

D31
1. d4 d5   
2. c4 e6   
3. Nc3

D32 - Queen's Gambit Declined/Tarrasch Defense
1. d4 d5   
2. c4 e6   
3. Nc3 c5

D33 - Queen's Gambit Declined/Tarrasch Defence/Schlechter-Rubinstein system
1. d4 d5   
2. c4 e6   
3. Nc3 c5   
4. cd5 ed5   
5. Nf3 Nc6   
6. g3

D34
1. d4 d5   
2. c4 e6   
3. Nc3 c5   
4. cd5 ed5   
5. Nf3 Nc6   
6. g3 Nf6
7. Bg2 Be7

D35 - Queen's Gambit Declined/Orthodox Defence
1. d4 d5   
2. c4 e6   
3. Nc3 Nf6

D36 - Queen's Gambit Declined/Exchange Variation
1. d4 d5   
2. c4 e6   
3. Nc3 Nf6   
4. cd5 ed5   
5. Bg5 c6 
6. Qc2

D37 - Queen's Gambit Declined/Orthodox Defence
1. d4 d5   
2. c4 e6   
3. Nc3 Nf6   
4. Nf3

D38 - Queen's Gambit Declined/Ragozin Variation
1. d4 d5   
2. c4 e6   
3. Nc3 Nf6   
4. Nf3 Bb4

D39 - Queen's Gambit Declined/Vienna Variation
1. d4 d5   
2. c4 e6  
3. Nc3 Nf6   
4. Nf3 Bb4   
5. Bg5 dc4
ECO Chess Codes
Chess Notation
Chess Openings

Log in or registerto write something here or to contact authors.