1. d2d4  1... d7d5  2. g1f3  2... c7c6  3. c1f4 The London System is always present, especially in blitz matches. 3... d8b6  4. d1c1  4... c8g4  5. e2e3  5... g8f6  6. c2c4 A new position on the sixth move already. 6... b8d7  7. b1c3  7... e7e6  8. c4c5 Pushing c4-c5 in these positions is always a difficult choice, since White loses central control. 8... b6d8  9. f3d2 White's idea is to play b4 without Black having the option of capturing the knight. This piece can later go to b3 and the pawn breaks are well controlled. Black must strike now in order to fight for equality. 9... f6h5 [%c_effect h5;square;h5;type;Mistake;persistent;true] 10. h2h3 [%c_effect h3;square;h3;type;GreatFind;persistent;true] White gets the advantage now. 10... h5f4  11. h3g4  11... f4g6  12. f2f4 [%c_effect f4;square;f4;type;GreatFind;persistent;true] A good prophylactic move, avoiding …e6-e5. 12... f8e7 