1. d2d4  1... g8f6  2. g1f3  2... g7g6  3. g2g3  3... f8g7  4. f1g2  4... d7d5  5. e1g1  5... e8g8  6. c2c4  6... c7c6  7. d1b3  7... d8b6 A  calm variation of the Grunfeld, where the onus is put on slow, lenghty  improvement of the pieces. 8. b1c3  8... f8d8  9. c1d2  9... d5c4  10. b3c4  10... c8e6  11. c4a4  11... e6f5  12. f1c1 A novelty upon a game of Nepomniachtchi. 12... b8d7  13. b2b4  13... f6e4 In order to soften the long diagonal. Black also  has less space so the trades make sense. 14. e2e3  14... e4c3 Completing the plan. 15. d2c3  15... f5e4  16. a4b3  16... e4d5  17. b3c2  17... d7f6  18. f3e5 There is no other way to get rid of the annoying bishop. 18... d5g2  19. g1g2  19... f6d5  20. e5d3 Both  players can be happy with the opening outcome. Nepomniachtchi can state  that his position is solid and his remaining light pieces are good while  Giri has kept the space advantage. 20... b6c7  21. a2a4  21... a8c8 