D60 — Queen's Gambit Declined: Orthodox Defense
Closed & Semi-Closed Games (D00–D99)
1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 O-O 6. e3 Nbd7
Full page: Queen's Gambit Declined: Orthodox Defense →ECO D60 covers Queen's Gambit Declined: Orthodox Defense and related lines (Queen's Gambit Declined: Orthodox Defense, Queen's Gambit Declined: Orthodox Defense, Botvinnik Variation, Queen's Gambit Declined: Orthodox Defense, Rauzer Variation). Main line 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 O-O 6. e3 Nbd7 with variations, statistics, and the best responses.
4 lines under D60
Queen's Gambit Declined: Orthodox Defense
1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 O-O 6. e3 Nbd7
Queen's Gambit Declined: Orthodox Defense, Botvinnik Variation
1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 O-O 6. e3 Nbd7 7. Bd3
Queen's Gambit Declined: Orthodox Defense, Rauzer Variation
1. d4 d5 2. Nf3 Nf6 3. c4 e6 4. Nc3 Be7 5. Bg5 O-O 6. e3 Nbd7 7. Qb3
Queen's Gambit Declined: Orthodox Defense, Botvinnik Variation
1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 O-O 6. e3 Nbd7 7. Bd3 c6