E70King's Indian Defence
4.e4
1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4
E70King's Indian Defence
Kramer System
1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nge2
E70King's Indian Defence
Accelerated Averbakh System
1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Bg5