Rapport also hesitates. And he keeps neglecting the development of the kingside.
1. d2d4  1... g8f6  2. c2c4  2... e7e6  3. b1c3  3... f8b4  4. d1c2 Still the main choice against the Nimzo-Indian Defense. 4... e8g8  5. a2a3  5... b4c3  6. c2c3  6... d7d5  7. c1g5  7... c7c5  8. d4c5  8... d5d4  9. c3g3 Rapport has an opinion of his own. The move 9.Qf3 gained popularity, thanks to the efforts by the world champion. 9... b8d7  10. g1f3  10... e6e5  11. a1d1 A risky move. White postpones castling, thus putting his king in serious danger. On the other hand, in an over-the-board game, this is a novelty. It happened in an email game though. 11... f8e8  12. b2b4  12... a7a5 All is correct—the white king can be attacked from any open file. 13. f3d2  13... a5b4  14. a3b4  14... g8f8 Only this, technically speaking, is a novelty, played after more than 20 minutes on the clock. Praggnanandhaa prepares the swap of the opponent's dark-squared bishop.