DETAILS

C51 伊文斯弃兵 1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.b4
训练
C52 伊文斯弃兵主变 1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.b4 Bxb4 5.c3 Ba5
训练