The first new move.
1. e2e4  1... e7e5  2. g1f3  2... b8c6  3. f1c4  3... f8c5  4. b1c3 One of the many possible ways to play the Italian Opening. Usually this square is reserved for the pawn, so that White can fight for the center with c3-d4, while the knight is maneuvered via d2 to f1 and g3. To make sense of the knight's positioning on c3, White must maneuver it to g3 via e2, place it on d5, or chase the black bishop with Na4 at some point. 4... g8f6  5. d2d3  5... e8g8  6. c1g5 The good old pin. 6... h7h6  7. g5h4  7... c5e7 The most solid way to play. Black doesn't need to commit to g7-g5 while it's possible to end the pin in a more relaxed way. 8. a2a4 [%c_effect a4;square;a4;type;Interesting;persistent;true] A rare move in this exact position, but gaining space with a2-a4 is an Italian classic. 8... d7d6  9. h4f6 Why White captures the knight now instead of castling is something that will become clear in the next few moves. White still hopes for an attack on the kingside. 9... e7f6  10. c3d5 