After all the Chinese GM decided that  the rooks will work better on the central files.
1. d2d4  1... g8f6  2. c2c4  2... e7e6  3. g1f3  3... d7d5  4. b1c3  4... f8e7  5. c1f4  5... e8g8  6. e2e3  6... b8d7  7. f1e2  7... d5c4  8. e1g1  8... a7a6  9. a2a4  9... f6d5  10. e2c4  10... d5f4  11. e3f4  11... c7c5  12. d4c5  12... e7c5 A novelty, played  after three minutes of thought. 13. d1e2 Ding also took time to play this obvious move. The rooks are  connected and ready to occupy both open files, The queen is eyeing the  pawn on e6. 13... b7b6 