1. Main line 1. c4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. Nf3 Nf6 6. O-O O-O 7. b3 Choose a line 1. Main line 1. c4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. Nf3 Nf6 6. O-O O-O 7. b3 2. English Opening: Symmetrical Variation, Duchamp Variation 1. c4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 O-O 5. O-O c5 6. Nc3 Nc6 7. d3 3. English Opening: Symmetrical Variation, Full Symmetry Line 1. c4 Nf6 2. Nf3 c5 3. Nc3 Nc6 4. g3 g6 5. Bg2 Bg7 Close 1. Main line 1. c4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. Nf3 Nf6 6. O-O O-O 7. b3 2. English Opening: Symmetrical Variation, Duchamp Variation 1. c4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 O-O 5. O-O c5 6. Nc3 Nc6 7. d3 3. English Opening: Symmetrical Variation, Full Symmetry Line 1. c4 Nf6 2. Nf3 c5 3. Nc3 Nc6 4. g3 g6 5. Bg2 Bg7 Next