D55
Queen's Gambit Declined: Neo-Orthodox Variation, Main Line
1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 h6 6. Bh4 O-O 7. e3
The Queen's Gambit Declined: Neo-Orthodox Variation, Main Line is a chess opening classified under ECO code D55. It is reached after the moves 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 h6 6. Bh4 O-O 7. e3.
It belongs to the Queen's Gambit Declined family — one of many ways the line can branch. Understanding the parent system’s plans is the fastest way to play this variation well.
Play the Queen's Gambit Declined: Neo-Orthodox Variation, Main Line? See where you go wrong.
Deepline reviews your real games, finds the exact moves that cost you, and trains the fixes.
Analyze my games free →Related openings
Queen's Gambit Declined: Baltic Defense, Pseudo-SlavQueen's Gambit Declined: Austrian Attack, Salvio CountergambitQueen's Gambit Declined: Austrian DefenseQueen's Gambit Declined: Austrian Defense, Gusev CountergambitQueen's Gambit Declined: Austrian Defense, Haberditz VariationQueen's Gambit Declined: Baltic DefenseQueen's Gambit Declined: Baltic Defense, Argentinian GambitQueen's Gambit Declined: Baltic Defense, Pseudo-ChigorinQueen's Gambit Declined: Baltic Defense, Queen AttackQueen's Gambit Declined: Baltic Defense, Queen Attack Deferred