Queen's Gambit Declined: Semi-Tarrasch Defense, San Sebastian Variation
D41 · Queen’s pawn · 1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 c5 7.Nf3 cxd4 8.cxd4 Bb4+ 9.Bd2 Qa5
D41 · Queen’s pawn · 1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 c5 7.Nf3 cxd4 8.cxd4 Bb4+ 9.Bd2 Qa5