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Chess Opening Theory/1. d4/1...Nf6/2. Bf4/2...e6/3. e3/3...d5/4. Nd2

< Chess Opening Theory‎ | 1. d4‎ | 1...Nf6‎ | 2. Bf4‎ | 2...e6‎ | 3. e3‎ | 3...d5

London System Main Line with Black ...e6 and ...c5 edit

London System - Main Line with Black ...e6 and ...c5
a b c d e f g h
8                 8
7                 7
6                 6
5                 5
4                 4
3                 3
2                 2
1                 1
a b c d e f g h
Position in Forsyth-Edwards Notation (FEN)

rnbqkbnr/ppp2ppp/4pn2/3p4/3P1B2/4P3/PPPN1PPP/R2QKBNR b

Moves: 1. d4 Nf6 2. Bf4 e6 3. e3 d5 4. Nd2

In the London System, following the moves 1. d4 Nf6 2. Bf4 e6 3. e3 d5 4. Nd2, White's strategy emphasizes proactive queenside development for defensive purposes and capitalizes on the activity of the dark-squared bishop to press for an advantage. White's strategy is based on the following core principles:

  1. Queenside Development for Defense: By proactively developing pieces on the queenside, White ensures a robust defense of the b2 pawn. This pawn often becomes vulnerable to attacks, especially when Black aims for ...Qb6, putting direct pressure on it.
  2. Leveraging the Active Bishop: The placement of the dark-squared bishop on f4 grants White a dynamic piece that can exert influence across the board. Its active positioning enhances White's prospects in both the middlegame and the endgame.
  3. Counteracting the Queen’s Gambit Declined Approach: While Black can attempt to adopt the structure and plans of the Queen's Gambit Declined, this often turns favorable for White. With the dark-squared bishop already actively placed outside the pawn chain, White generally retains a minor advantage, especially as the game transitions into endgame scenarios.

Theory table edit

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

1. d4 d5 2. Bf4 Nf6 3. e3 e6 4. Nd2

4
Main line with e6 ...
c5		 =

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References edit

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Wikipedia has related information at London System

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