Pembukaan

Queen's Gambit Declined: Exchange, Positional Line, Reshevsky Variation

1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.cxd5 exd5 5.Bg5 c6 6.Qc2 Be7 7.e3 O-O 8.Bd3
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