1. d2d4  1... g8f6  2. g1f3  2... d7d5  3. c1f4  3... e7e6  4. e2e3  4... f8d6  5. b1d2  5... b7b6  6. f4g3  6... e8g8  7. f1d3  7... c8a6  The swap of the light-squared bishops is one of the safest ideas against  the London. 8. a1c1  8... a6d3 It is interesting that in this line it is White who  usually doubles the opponent's pawns after capturing on d6.