1.c4 Nf6 2.Nc3 g6 3.g3 Bg7 4.Bg2 0-0 5.d3 d6 6.Nf3 e5 7.0-0 Nc6 8.Rb1 a5 9.a3 h6 10.b4 axb4 11.axb4 Be6 12.b5 This sequence shows the system fully in operation. White operates in the centre and Q-side; Black operates more on the K-side.