English Opening: Anglo-Indian Defense, Queen's Indian Variation

The English Opening: Anglo-Indian Defense, Queen's Indian Variation is a chess opening classified under ECO code A17 in the Flank Openings family, characterized by moves like 1.c4, 1.Nf3, or 1.f4, aiming to control the center indirectly. It is reached after 5 moves: 1. c4 e6 2. Nc3 Nf6 3. Nf3 b6 4. e4 Bb7 5. Bd3. The resulting position leaves black to move.