Chess Opening Theory/1. e4/1...a6/2. c4

= St. George Defence =

2. c4
At first sight, it looks like a refutation of St Georges Defence. But Black keeps the powerful ability to play /2...e5/, transposing into an open game where White have a misplaced pawn on c4.

/2...b5/ looks compromised as Black will lose one of the main benefit of the St Georges : the power at the queen side.

Theory table
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'1.e4 a6 2.c4'