Last modified on 29 May 2013, at 09:43

Chess Opening Theory/1. e4/1...c5/2. Nf3

Open Sicilian
a b c d e f g h
8 a8 b8 c8 d8 e8 f8 g8 h8 8
7 a7 b7 c7 d7 e7 f7 g7 h7 7
6 a6 b6 c6 d6 e6 f6 g6 h6 6
5 a5 b5 c5 d5 e5 f5 g5 h5 5
4 a4 b4 c4 d4 e4 f4 g4 h4 4
3 a3 b3 c3 d3 e3 f3 g3 h3 3
2 a2 b2 c2 d2 e2 f2 g2 h2 2
1 a1 b1 c1 d1 e1 f1 g1 h1 1
a b c d e f g h
Position in Forsyth-Edwards Notation(FEN)

rnbqkbnr/pp1ppppp/8/2p5/4P3/5N2/PPPP1PPP/RNBQKB1R

Moves: 1. e4 c5 2.Nf3
ECO code: B27-B99
Parent: Sicilian Defence

Open SicilianEdit

2. Nf3Edit

White's move 2. Nf3 increased his control of the d4 square, enabling him to play d4 next move. Black cannot hope to resist White's plan any further, and should go about his own development. 2...d6 is the main line move, controlling e5 for a potential advance of the e-pawn and letting the queen's bishop out, while also holding down the c-pawn in case White should go down a different path. 2...e6 is an older move freeing the king's bishop although d6 will often follow soon. 2...Nc6 reserves options in the centre and keeps an eye on d4, as does 2...g6 planning Bg7, and 2...a6 can restrain some of White's longer-term plans and provide the springboard for a b5 advance, though it neglects the centre. There are many slightly different Sicilians with similar plans for Black, in which various combinations of these moves may turn up in almost any order.

The one significant departure from the main lines is 2...Nf6, evoking Alekhine's Defence by attacking the e-pawn to tempt it forward.

Theory tableEdit

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

1.e4 c5 2.Nf3

2 3 4 5
Open Sicilian with 2...d6 ...
d6
d4
cxd4
Nxd4
Nf6
Nc3
e6
=
Open Sicilian with 2...e6 ...
e6
d4
cxd4
Nxd4
Nf6
Nc3
a6
=
Open Sicilian with 2...Nc6 ...
Nc6
d4
cxd4
Nxd4
Nf6
Nc3
e5
=
O'Kelly Variation ...
a6
c3
d5
exd5
Nf6
c4
e6
+=
Hyper-Accelerated Dragon ...
g6
d4
cxd4
Qxd4
Nf6
Bb5
Nc6
=
Nimzowitsch Variation ...
Nf6
e5
Nd5
Nc3
e6
Nxd5
exd5
+=
Katalimov Variation ...
b6
d4
cxd4
Nxd4
Bb7
Nc3
d6
+=

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ReferencesEdit

  • Nunn's Chess Openings. 1999. John Nunn (Editor), Graham Burgess, John Emms, Joe Gallagher. ISBN 1-8574-4221-0.
  • Batsford Chess Openings 2 (1989, 1994). Garry Kasparov, Raymond Keene. ISBN 0-8050-3409-9.