Chess opening
Queen's Gambit Declined: Semi-Slav, Koomen VariationD31
The Queen's Gambit Declined: Semi-Slav, Koomen Variation is a chess opening classified under ECO code D31. It is reached after the moves:
1. d4 d5 2. c4 e6 3. Nc3 c6 4. Nf3 dxc4 5. e3 b5 6. a4 Bb4 7. Bd2 Qe7
Play it vs Stockfish Open in analysis board
Comes from
Related lines in the Queen's Gambit Declined
- Queen's Gambit Declined: Baltic Defense, Pseudo-Slav (D02)
- Queen's Gambit Declined: Austrian Attack, Salvio Countergambit (D06)
- Queen's Gambit Declined: Austrian Defense (D06)
- Queen's Gambit Declined: Austrian Defense, Gusev Countergambit (D06)
- Queen's Gambit Declined: Austrian Defense, Haberditz Variation (D06)
- Queen's Gambit Declined: Baltic Defense (D06)
- Queen's Gambit Declined: Baltic Defense, Argentinian Gambit (D06)
- Queen's Gambit Declined: Baltic Defense, Pseudo-Chigorin (D06)
Train this opening
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