All ECO Codes
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D64
D64
Queen's Gambit
Declined, Orthodox Defence, Rubinstein Attack, Karlsbad Variation
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 Nbd7 7.Rc1 c6 8.Qc2 a6