A powerful way to attack the (almost) hanging central pawns.
1. e2e4  1... c7c5  2. g1f3  2... b8c6  3. f1b5  3... g7g6  4. e1g1  4... f8g7  5. b5c6  5... b7c6  6. f1e1  6... g8h6  7. c2c3  7... e8g8  8. d2d4  8... c5d4  9. c3d4  9... d7d5  10. e4e5  10... f7f6  11. h2h3  11... f6e5  12. d4e5  12... c6c5 