Mga Opening

Queen's Gambit Declined: Harrwitz, Main Line

1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 Be7 5.Bf4 O-O 6.e3 c5 7.dxc5 Bxc5 8.Qc2 Nc6 9.a3
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