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Chess Opening Theory/1. e4/1...g6/2. d4/2...Bg7/3. Nc3

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Modern Defence, Main Line
a b c d e f g h
8a8 black rookb8 black knightc8 black bishopd8 black queene8 black kingf8 black kingg8 black knighth8 black rook8
7a7 black pawnb7 black pawnc7 black pawnd7 black pawne7 black pawnf7 black pawng7 black bishoph7 black pawn7
6a6 black kingb6 black kingc6 black kingd6 black kinge6 black kingf6 black kingg6 black pawnh6 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 white pawnf4 black kingg4 black kingh4 black king4
3a3 black kingb3 black kingc3 white knightd3 black kinge3 black kingf3 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 black kingc1 white bishopd1 white queene1 white kingf1 white bishopg1 white knighth1 white rook1
a b c d e f g h
Position in Forsyth-Edwards Notation (FEN)

rnbqk1nr/ppppppbp/6p1/8/3PP3/2N5/PPP2PPP/R1BQKBNR b

Moves: 1. e4 g6 2. d4 Bg7 3. Nc3

Modern Defence, Main Line

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This the main line of the Modern Defence. Here Black has allowed White to have a classical pawn duo on e4 and d4. Black must have a plan to attack back or they will be steamrolled.

The most common reply is 3...d6. Here Black attempts to undermine the center through a hypermodern approach.

A more passive approach is 3...c6.

Theory table

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

1. e4 g6 2. d4 Bg7 3. Nc3

3 4
…
d6 		Be3
a6 		=
…
c6 		Nf3 =
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