1. e2e4  1... c7c5  2. g1f3  2... e7e6  3. d2d4  3... c5d4  4. f3d4  4... b8c6  5. b1c3  5... a7a6 The first surprising move. Rapport has always preferred Qc7 here in the past, which is far and away the main move in modern times. 6. g2g4 Bold, but probably not best. Caruana's time management suggested that he hadn't checked 5...a6 much. 6... g8e7  7. c1e3  7... b7b5  8. d4b3  8... c6a5 Rapport was still playing pretty fast at this point, but we are already well outside of normal theory. This position had only been seen once before, in an Ulf Andersson game from 2000. 9. d1d2  9... a5b3 This feels unnecessary to me. The knight on b3 was not going anywhere, so did we need to take it right away $2 It means White no longer has to ever worry about Nc4 and can put the bishop on g2 more comfortably. 10. a2b3  10... c8b7 