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

{{Chess Opening Theory/Position|=
 * Sicilian - O'Kelly variation|

|rd|nd|bd|qd|kd|bd|nd|rd|= | |pd|  |pd|pd|pd|pd|pd|= |pd| |  |  |  |  |  |  |= | |  |pd|  |  |  |  |  |= | |  |  |  |pl|  |  |  |= | |  |  |  |  |nl|  |  |= |pl|pl|pl|pl| |pl|pl|pl|= |rl|nl|bl|ql|kl|bl| |rl|=

Truth
White's attack is way too }} =Sicilian - O'Kelly variation=

2...a6
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. Another problem is 3. c4 d6 d4 Bg4 dxc5 Bxf3 gxf3! dxc5 (An alternative is Qa5+ Nc3 Qxc5 (dxc5?! Qb3 (Ra7!?) Qc7? (Black would have done better to give up a pawn) Bf4! with a winning attack) Be3 Qc6 with a huge lead in development and two Bishops). Qxd8+ Kxd8. For the ruined structure, white has a crushing attack and 2 Bishops. d4 is also absolutely normal move

Theory table
For explanation of notation, see Chess Opening Theory Table.

1.e4 c5 2.Nf3 a6