1. c2c4  1... e7e5  2. g2g3  2... c7c6  3. g1f3  3... e5e4  4. f3d4  4... d7d5  5. c4d5  5... d8d5  6. d4c2  6... g8f6  7. b1c3  7... d5e5  8. f1g2  8... b8a6  9. e1g1  9... f8e7  10. c2e3 Up to here, everything has been pretty well-known theory. Now, while Ian's next move is very natural, I think it is not best.