So has experience in this position, as he has played it three times previously. The last time was in 2015 in a game that ended in defeat. His opponent chose the more common 9...c5.
1. d2d4  1... g8f6  2. c2c4  2... e7e6  3. g1f3  3... d7d5  4. b1c3  4... b8d7  5. e2e3  5... f8e7  6. b2b3  6... e8g8  7. c1b2  7... b7b6  8. f1d3  8... c8b7 