Chess Opening Theory/1. e4/1...a6/2. d4/2...b5/3. c4/3...Bb7

= St. George Defence/Three Pawns Attack = In this variation, defending with 4. Bd3 is bad, as 4...bxc4 wins a pawn. Instead, /4. Nc3/ is perfect because 4...b4 can be answered with 5. Qb3. /4. Nd2/ is also an interesting option. The knight blocks the bishop, but his defensive potential is increased as both the c-pawn and the e-pawn are protected.

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

1.e4 a6 2.d4 b5 3.c4 Bb7