Chess Opening Theory/1. e4/1...c5/2. Nf3/2...b6

=Sicilian - Katalimov variation=

2...b6
This fianchetto of the Queen's Bishop leaves Black with many weak white colored squares on the Queenside where allowing a possible Bb5 or Nb5, while it does nothing to develop on the Kingside. White's best move is '''3. d4''' and sets a trap if Black plays 7...d6??, White can win a queen with 8. Bb5+! (see diagram below).

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

1.e4 c5 2.Nf3 b6