[%c_effect c6;square;c6;type;Inaccuracy;persistent;true]
1. d2d4  1... g8f6  2. c2c4  2... e7e6  3. g2g3  3... d7d5  4. f1g2  4... f8b4  5. b1d2 This is a more ambitious line than the main move, 5.Bd2. 5... e8g8  6. g1f3  6... d5c4 A critical move that fits Robson's aggressive and concrete style. 6...b6 is a more positional choice. 7. d1c2  7... c7c5  8. e1g1 This is a rare move. Caruana's famous home preparation strikes again. This is something I can comment on with knowledge of the facts: in 2010, at the Olympiad, I lost a famous game in which the young Caruana had prepared a beautiful queen sacrifice in his laboratory. 8... c5d4  9. d2c4 