ECO E11

ECO E00–E99 — Indian Defenses: 1.d4 Nf6 with the Nimzo-Indian, Queen's Indian, Catalan and King's Indian complexes.

10 named opening lines are classified under ECO code E11.

• Bogo-Indian Defense — 1.d4 Nf6 2.c4 e6 3.Nf3 Bb4+
• Bogo-Indian Defense: Exchange Variation — 1.d4 Nf6 2.c4 e6 3.Nf3 Bb4+ 4.Bd2 Bxd2+
• Bogo-Indian Defense: Grünfeld Variation — 1.d4 Nf6 2.c4 e6 3.Nf3 Bb4+ 4.Nbd2
• Bogo-Indian Defense: Haiti Variation — 1.d4 Nf6 2.c4 e6 3.Nf3 Bb4+ 4.Bd2 Nc6
• Bogo-Indian Defense: Monticelli Trap — 1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Bb4+ 6.Bd2 Bxd2+ 7.Qxd2 O-O 8.Nc3 Ne4 9.Qc2 Nxc3 10.Ng5
• Bogo-Indian Defense: New England Variation — 1.d4 Nf6 2.c4 e6 3.Nf3 Bb4+ 4.Nfd2
• Bogo-Indian Defense: Nimzowitsch Variation — 1.d4 Nf6 2.c4 e6 3.Nf3 Bb4+ 4.Bd2 Qe7
• Bogo-Indian Defense: Retreat Variation — 1.d4 Nf6 2.c4 e6 3.Nf3 Bb4+ 4.Bd2 Be7
• Bogo-Indian Defense: Vitolins Variation — 1.d4 Nf6 2.c4 e6 3.Nf3 Bb4+ 4.Bd2 c5
• Bogo-Indian Defense: Wade-Smyslov Variation — 1.d4 Nf6 2.c4 e6 3.Nf3 Bb4+ 4.Bd2 a5