Chess Opening Theory/1. e4/1...c5/2. Nf3/2...a6

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Sicilian - O'Kelly variation
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/1p1ppppp/p7/2p5/4P3/5N2/PPPP1PPP/RNBQKB1R

Sicilian - O'Kelly variation[edit]

2...a6[edit]

This early a6 prevents White from occupying b5, so after 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 and then 6. Nb5 is prevented. The main problem with this variation is how to deal with 3. c3, which transposes to an Alapin Sicilian with the useless a6 move.

Often White falls for the following trap: 1.e4 c5 2.Nf3 a6 3.d4? cxd4 4.Nxd4 e5! 5.Nb3 Nf6 6.Nc3 Bb4 7.Bd3 d5! and Black has a clear advantage. He is simply too active.

Theory table[edit]

For explanation of notation, see Chess Opening Theory Table.

1.e4 c5 2.Nf3 a6

3 4 5
c3
d5
exd5
Nf6
c4
e6
+=
Nc3
e6
d4
cxd4
Nxd4

See Kan Sicilian
d4
cxd4
Nxd4
e5
Ne2
Bc5
=
...
...
Qxd4!?
Nc6
c4
e6
Nc3
Qc7
Be2
b6
=

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References[edit]

  • Batsford Chess Openings 2 (1989, 1994). Garry Kasparov, Raymond Keene. ISBN 0-8050-3409-9.