ECO code: E10
Neo-Indian: 3.Nf3 a6 4.Nc3
The Neo-Indian is a flexible system arising after the moves 1.d4 Nf6 2.c4 e6 3.Nf3 a6 4.Nc3. Black’s move 3...a6 is somewhat uncommon and aims to prepare ...b5 in some lines, gaining queenside space and preventing White's pieces from easily advancing to b5. It is a waiting and preparatory move rather than an immediate claim of the center.
Characteristic: The move 3...a6 is a useful waiting move that stops White’s minor pieces or pawns from quickly occupying b5 and prepares for potential queenside expansion. It also keeps options open for Black’s development without committing the central structure too early.
Playing Style: For White, this setup is generally attacking in the center, as White has strong central presence with pawns on d4 and c4, and develops naturally with knights on f3 and c3. Black’s approach with ...a6 is more positional and defensive, aiming to control key squares and prepare counterplay on the queenside rather than contesting the center immediately.
Center Control: White maintains central control with the pawns on d4 and c4, while Black delays central engagement, focusing instead on a flexible setup. This opening does not involve an immediate fight for the center by Black, but White clearly occupies and pressures central squares.
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.
Practice puzzles and train your tactics with real positions from games that used the Neo-Indian: 3.Nf3 a6 4.Nc3, and sharpen your opening mastery.
Puzzle 1 of 2 - Move #9 white