This is a critical position of the modern Italian Opening theory.
1. e2e4  1... e7e5  2. g1f3  2... b8c6  3. f1c4  3... g8f6  4. d2d3  4... f8c5  5. e1g1  5... d7d6  6. c2c3  6... e8g8  7. h2h3  7... a7a6  8. a2a4  8... c5a7  9. f1e1  9... h7h6  10. b1d2  10... f8e8  11. b2b4  11... c8e6  12. c4e6 