Indian defenses

Bogo-Indian Defense

1.d4 Nf6 2.c4 e6 3.Nf3 Bb4+

The Bogo-Indian Defense starts with 1.d4 Nf6 2.c4 e6 3.Nf3 Bb4+ and is catalogued under ECO E11, in the indian defenses half of the book. The catalog indexes 21 lines inside it, grouped into 10 named variations.

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Current setup

Move ideas

  1. 1.d4

    Takes central space with a protected pawn and frees the queen’s bishop.

    Idea: Build a stable center that supports a broad positional setup.

  2. 1Nf6

    Develops a knight and prevents White from occupying e4 unchallenged.

    Idea: Keep the central pawns flexible and choose an Indian setup after White commits.

  3. 2.c4

    Advances the c-pawn to gain queenside space and control new squares.

    Idea: Create useful wing space while keeping the central structure flexible.

  4. 2e6

    Advances to e6 to claim central space and control nearby key squares.

    Idea: Give the pieces room to develop behind a durable central foothold.

  5. 3.Nf3

    Develops the knight to f3, bringing it into the game.

    Idea: Improve piece coordination and clear the back rank for castling and the rooks.

  6. 3b6

    Advances the b-pawn to gain queenside space and control new squares.

    Idea: Create useful wing space while keeping the central structure flexible.

  7. 4.g3

    Advances the g-pawn to gain kingside space and control new squares.

    Idea: Create useful wing space while keeping the central structure flexible.

  8. 4Bb7

    Develops the bishop to b7, bringing it into the game.

    Idea: Improve piece coordination and clear the back rank for castling and the rooks.

  9. 5.Bg2

    Develops the bishop to g2, bringing it into the game.

    Idea: Improve piece coordination and clear the back rank for castling and the rooks.

  10. 5Bb4+

    Develops the bishop to b4, bringing it into the game, forcing the king to answer a check.

    Idea: Improve piece coordination and clear the back rank for castling and the rooks.

  11. 6.Bd2

    Develops the bishop to d2, bringing it into the game.

    Idea: Improve piece coordination and clear the back rank for castling and the rooks.

  12. 6Bxd2+

    Captures the bishop on d2 and changes the local pawn or piece balance, forcing the king to answer a check.

    Idea: Remove an active defender and improve the moving piece’s influence.

  13. 7.Qxd2

    Captures the bishop on d2 and changes the local pawn or piece balance.

    Idea: Remove an active defender and improve the moving piece’s influence.

  14. 7O-O

    Tucks the king away and activates the rook in a single move.

    Idea: Finish kingside development so the central pieces can coordinate safely.

  15. 8.Nc3

    Develops the knight to c3, bringing it into the game.

    Idea: Improve piece coordination and clear the back rank for castling and the rooks.

  16. 8Ne4

    Repositions the knight to e4, where it influences a new part of the board.

    Idea: Improve the piece’s activity and support the next stage of the plan.

  17. 9.Qc2

    Repositions the queen to c2, where it influences a new part of the board.

    Idea: Coordinate threats carefully while avoiding unnecessary tempi against the queen.

  18. 9Nxc3

    Captures the knight on c3 and changes the local pawn or piece balance.

    Idea: Remove an active defender and improve the moving piece’s influence.

  19. 10.Ng5

    Repositions the knight to g5, where it influences a new part of the board.

    Idea: Improve the piece’s activity and support the next stage of the plan.

Book continuations

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0 moves
This is the end of the indexed line.

Named variations

Each line below is an indexed entry under Bogo-Indian Defense. Open one to load it on the board and keep exploring from that position.

ECO groups openings by the structures they lead to, so these families tend to share plans with the Bogo-Indian Defense.