Chess Opening Theory/1. d4/1...Nf6/2. c4/2...c5/3. d5/3...b5/4. cxb5/4...a6

= Benko Gambit =

4. ... a6
The standard Benko Gambit line. White has three common options available to him:


 * 5. bxa6, accepting the gambit. Black then plays ...Bxa6, going into the classical Benko Gambit.
 * 5. b6 allows black to regain the pawn immediately via ...Qxb6, but in turn gives black fewer open lines. This is a good line for players who don't wish to get involved in theoretical lines as white.
 * 5. Nc3 is an interesting alternative where white prefers to just continue with development.

Theory table
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'''1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6'''