ECO D37 · Queen's Gambit Declined
Queen's Gambit Declined: Harrwitz Attack, Two Knights Defense, Blockade Line
The position after 1.d4 Nf6 2.c4 e6 3.Nc3 d5 4.Nf3 Be7 5.Bf4 O-O 6.e3 Nbd7 7.c5.
1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. Nf3 Be7 5. Bf4 O-O 6. e3 Nbd7 7. c5
Queen's Gambit Declined: Harrwitz Attack, Two Knights Defense, Blockade Line is filed under ECO D37, a variation of Queen's Gambit Declined: Harrwitz Attack, Two Knights Defense. It is the position after 1.d4 Nf6 2.c4 e6 3.Nc3 d5 4.Nf3 Be7 5.Bf4 O-O 6.e3 Nbd7 7.c5 — 13 half-moves in, with Black to move. Named theory ends here; beyond this the position is yours to work out.