E60–E99WhiteKing's Indian Defense1. d4 Nf6 2. c4 g6 3. Nc3 112 named linesNormal VariationNormal VariationOrthodox VariationOrthodox Variation
E12–E59BlackNimzo-Indian Defense1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 100 named linesRubinstein SystemNormal VariationClassical VariationNormal Variation
E12–E19BlackQueen's Indian Defense1. d4 Nf6 2. c4 e6 3. Nf3 b6 48 named linesFianchetto VariationTraditional VariationClassical VariationPetrosian Variation
E11BlackBogo-Indian Defense1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 17 named linesNimzowitsch VariationRetreat VariationGrünfeld VariationRetreat Variation
E10BlackBlumenfeld Countergambit1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 b5 3 named linesDuz-Khotimirsky VariationSpielmann Variation
E10BlackBlumenfeld Countergambit Accepted1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 b5 5. dxe6 fxe6 6. cxb5 d5 1 named line