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... h7h6  9. f1e1  9... f8e8  10. b2b4  10... c5a7  11. b1d2  11... c8e6 An important position for modern Italian Opening theory. I have great difficulty with the number of possible plans and move-orders for both sides in this opening, but I must say that the sequence so far has been very logical and understandable, which is not always the case. 12. c4e6  12... e8e6  13. c1b2 With the development of the bishop, White is ready to advance the pawn to b5, attacking the black knight. Ideas with d4, fighting for the center, or c4, opening the bishop's diagonal, also become possible. 13... d6d5 I have the impression that this move is a bit premature. 14. b4b5  14... c6e7  15. e4d5  15... d8d5  16. c3c4 This is the point. White exchanges the d3-pawn for the one on e5.