All ECO Codes
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D14
D14
Queen's Gambit
Declined, Slav Defence, Exchange, Trifunovic Variation
1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.cxd5 cxd5 5.Nc3 Nc6 6.Bf4 Bf5 7.e3 e6 8.Qb3 Bb4