Eröffnungen

Queen's Gambit Declined: Three Knights Variation

1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 Be7 5.e3 O-O 6.Bd3 b6 7.O-O Bb7 8.cxd5 exd5 9.b3
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