1. e2e4  1... c7c5  2. b1c3  2... b8c6  3. f1b5  3... c6d4  4. b5c4  4... e7e6  5. g1e2  5... d8c7  6. d2d3  6... a7a6  7. e2d4  7... c5d4  8. c3e2  8... b7b5  9. c4b3  9... f8c5  10. c2c3  10... d4c3  11. b2c3  11... g8e7 You usually need a good reason not to develop the knight to f6, as it has greater central control on this square. I'm not sure there is a good justification for putting the knight on e7. 12. e1g1  12... c8b7  13. d3d4  13... c5b6  14. b3c2 White's position is a bit more pleasant, with nice central pawns and the bishops pointing at Black's king.