411 REFERENCE · Wikibooks
Chess Opening Theory/1. e4/1...g6/2. d4/2...Bg7
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Modern Defence rd nd bd qd kd nd rd pd pd pd pd pd pd bd pd pd pl pl pl pl pl pl pl pl rl nl bl ql kl bl nl rl
Modern Defence
White now has several choices of pawn structure to adopt. The most flexible move is /3. Nc3/, giving White some time before deciding. However, it denies the access to the Averbakh Variation (/3. c4/), the Geller's System(/3. c3/ and 4. Nf3) and the Three Pawns Attack (/3. c3/ and 4. f4).
/3. Nf3/ is also possible and will transpose early into the other variations.
/3. h4/ is an attacking move that was discovered by Bobby Fischer. It aims to weaken Black's kingside pawn structure and make Black's king more vulnerable. Black may have difficulties castling in some lines arising from this move.
Theory table
.
1. e4 g6 2. d4 Bg7
3
4
5
7
8
9
10
11
12
13
14
Main Variation
Nc3
-
=
c3
-
=
h4
-
=
Averbakh Variation
c4
-
=
Nf3
-
=
e5d6
Nf3Bg4
exd6Qxd6
c3Nc6
Be2Bxf3
Bxf3Rd8
Qe2Nf6
Na3a6
Nc4Qd7
Bf40-0
0-0-0Nd5
=
References
Modern Defence