1. d2d4  1... g8f6  2. g1f3  2... g7g6  3. c1f4  3... f8g7  4. e2e3  4... d7d6  5. h2h3  5... c7c5  6. b1d2 The London  system has the practical advantage of developing the pieces in a  conventional way, no matter which opening the opponent chooses. 6... c5d4  7. e3d4  7... e8g8  8. f1e2 A position typical for the Reti opening arose,  with reversed colors. 8... d8b6 Lures the knight to the c4 square. 9. d2c4  9... b6c7  10. c4e3 A logical move and a novelty. 10... b8c6  11. c2c3  11... e7e5 That is the whole point behind Black's setup. 12. f4h2  12... c7e7 However, this logical move (the queen sidesteps the X-raying  of the white bishop) is not optimal here.