1. d2d4  1... g8f6  2. c2c4  2... e7e6  3. g1f3  3... f8b4  4. c1d2  4... a7a5  5. a2a3 A good and simple move. The inclusion of a5-a3 doesn't change the outlook much on the queenside. 5... b4d2  6. d1d2  6... d7d5  7. b1c3  7... e8g8  8. e2e3  8... b8d7  9. c4d5  9... e6d5  10. f1d3  10... d8e7  11. e1g1  11... b7b6 