2017.09.14
1 : 0
Queen's pawn, Mason variation, Steinitz counter-gambit
1.d4 d5 2.Bf4 c5 3.e3 Nc6 4.c3 Qb6 5.Qb3 c4 6.Qc2 Nf6 7.Nd2 Nh5 8.Ne2 e6 9.e4 Nxf4 10.Nxf4 Bd6 11.e5 Be7 12.Nh5 O-O 13.f4 Qc7 14.Be2