ECO code: A12
English Opening: Anglo-Indian Variation, 2.Nf3 c6 3.b3 d5
This line of the English Opening arises after the moves 1.c4 Nf6 2.Nf3 c6 3.b3 d5. White’s early b3 prepares to fianchetto the light-squared bishop, aiming for strong control over the long diagonal towards the center and queenside. Black responds actively with c6 and then d5, challenging White’s central presence and striving for a solid pawn structure.
Characteristic: The key feature of this variation is White’s flexible setup with a fianchettoed bishop, which supports control over the center from a distance rather than immediate occupation. Black’s c6 and d5 moves are characteristic of the Anglo-Indian Defense, aiming to blunt White’s influence in the center and contest space early.
Attacking or Defensive: As White, this opening tends to be more positional and restrained, focusing on controlling key squares and preparing for a gradual buildup rather than direct attacks. Black’s moves are somewhat defensive but proactive, trying to equalize by challenging the center promptly.
Center Control: The opening features a strategic battle over the center. While White does not immediately occupy the center with pawns, the fianchettoed bishop exerts indirect pressure. Black, on the other hand, directly challenges the center with d5, aiming to establish a foothold.
This opening is defined by the position shown on the board below. The moves displayed are a typical sequence that leads to it, but different sequences can reach the same position and still carry the same opening name.