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Chess Opening Theory/1. d4/1...Nf6/2. Bf4/2...e6/3. e3

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London System Indian Setup with 2. Bf4 e6

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Indian Defence with 2. Bf4 - London System
a b c d e f g h
8a8 black rookb8 black knightc8 black bishopd8 black queene8 black kingf8 black bishopg8 black kingh8 black rook8
7a7 black pawnb7 black pawnc7 black pawnd7 black pawne7 black kingf7 black pawng7 black pawnh7 black pawn7
6a6 black kingb6 black kingc6 black kingd6 black kinge6 black pawnf6 black knightg6 black kingh6 black king6
5a5 black kingb5 black kingc5 black kingd5 black kinge5 black kingf5 black kingg5 black kingh5 black king5
4a4 black kingb4 black kingc4 black kingd4 white pawne4 black kingf4 white bishopg4 black kingh4 black king4
3a3 black kingb3 black kingc3 black kingd3 black kinge3 white pawnf3 black kingg3 black kingh3 black king3
2a2 white pawnb2 white pawnc2 white pawnd2 black kinge2 black kingf2 white pawng2 white pawnh2 white pawn2
1a1 white rookb1 white knightc1 black kingd1 white queene1 white kingf1 white bishopg1 white knighth1 white rook1
a b c d e f g h
Position in Forsyth-Edwards Notation (FEN)

rnbqkb1r/pppp1ppp/4pn2/8/3P1B2/4P3/PPP2PPP/RN1QKBNR b

Moves: 1. d4 Nf6 2. Bf4 e6 3. e3
Parent: Queens Pawn Opening

After 3. e3, White aims for a solid, unbreakable center and potential queenside expansion, while Black seeks to challenge the center and develop harmoniously, keeping multiple pawn breaks and piece maneuvers in mind. After the moves 1. d4 Nf6 2. Bf4 e6 3. e3, both sides have committed to certain pawn structures and plans:

White's Position and Plans:

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  1. Pawn Structure & Central Control:
    • White's pawn chain (d4-e3) is solid and tough to break. This setup supports the dark-squared bishop on f4 and restricts Black's pawn breaks.
  2. Piece Activity:
    • The Bf4 targets the d6 square and is also out of the pawn chain, ensuring its active participation in the game.
  3. Plans:
    • Development and King Safety: Nf3 and Bd3 are natural moves, followed by O-O.
    • Queenside Play: With the center secure, White can consider a queenside expansion with c4 (often after Nbd2), possibly followed by Qb3, Rc1, and a3-b4.
    • Center Control: Maintaining the pawn on d4 and preventing ...e5 or ...c5 breaks.
    • King's Side Attack: If Black fianchettoes the king's side, h2-h3 followed by g2-g4 can be a pawn storm plan.

Black's Position and Plans:

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  1. Pawn Structure & Central Control:
    • Black's ...e6 provides support for a potential ...d5 pawn break, directly challenging White's center.
  2. Piece Activity:
    • The Nf6 is well placed, pressurizing the e4 square.
  3. Plans:
    • Central Breaks: ...d5 is the most straightforward plan to challenge White's central structure.
    • Bishop Development: The light-squared bishop can be developed to d6, challenging White's Bf4, or to e7. An alternative plan involves a fianchetto setup with ...b6 and ...Bb7.
    • Queenside Play: ...c5 can be an effective pawn break to challenge the center and open lines for the rooks and queen.
    • King's Side Play: If White overextends on the kingside, counterplay with ...Nh5 can challenge the Bf4 or ...f5 can be considered in some setups.
    • Knight Maneuvers: The knight on b8 can be developed to d7 or c6 based on the requirements of the position.

Theory table

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For explanation of theory tables, see theory table and for notation, see algebraic notation..

1. d4 Nf6 2. Bf4 e6 3. e3

3
(to) London System Main Position with e6 ...
d5		 =

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References

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Wikipedia has related information at London System

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