D35 - 1. c4 e6 2. Nc3 d5 3. d4 Nf6 4. cxd5 exd5 5. Bg5 Be7 6. e3 O-O - Queen's Gambit Declined: Exchange Variation, Positional Variation

├── D35 - 1. c4 e6 2. Nc3 d5 3. d4 Nf6 4. cxd5 exd5 5. Bg5 Be7 6. e3 O-O 7. Bd3 Re8 - Queen's Gambit Declined: Exchange Variation, Positional Variation (9)
└── D35 - 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. cxd5 exd5 5. Bg5 Be7 6. e3 O-O 7. Bd3 h6 - Queen's Gambit Declined: Exchange Variation, Positional Variation (2)