1. g1f3  1... d7d5  2. e2e3  2... g8f6  3. c2c4  3... e7e6  4. b2b3  4... f8d6  5. c1b2 The Reti is a chameleon opening and as such, the arising positions often represent familiar defenses with reversed colors and an extra tempo for White. 5... e8g8  6. b1c3  6... f8e8  7. c3b5  7... d6e7  8. b2e5  8... b8a6  9. c4d5  9... e6d5 Both players have entered QID waters, with somewhat unusual placement of the white pieces. 10. f1e2 This is already a novelty, although such an obvious and natural move can hardly be considered new in any situation. 10... c7c6  11. b5d4  11... a6c5 The position is pretty locked; therefore, both players start to maneuver, slowly shifting their pieces for the flanks where they have an advantage. 12. h2h3  12... a7a5  13. d1c2  13... e7d6 The trade of a pair of bishops should be favorable for the second player. 14. e5d6  14... d8d6  15. e1g1  15... c5e6 The knight has also been shifted to a more central spot. 16. d4f5  16... d6d8  17. f1c1  17... e6f4 [%c_effect f4;square;f4;type;GreatFind;persistent;true] Thanks to this little trick, Vidit manages to trade another light piece. Black does not have any problems at all. 18. e2f1  18... c8f5  19. c2f5  19... f4e6  20. f5c2  20... f6e4  21. c2b2 Erigaisi plays very logical, straightforward moves; however, they fail to pose any problems for his opponent. 21... e6g5  22. f3g5  22... d8g5  23. d2d3  23... e4d6 An ideal square for the knight in case White chooses to opt for the Carlsbad pawn structure and plays d3-d4 any time now. 24. a2a4 [%c_effect a4;square;a4;type;Interesting;persistent;true] A typical method in the battle against the black pawn formation, which aims to challenge the root pawn on b7. White wants to play b3-b4 next, however. .. 24... g5h4 [%c_effect h4;square;h4;type;GreatFind;persistent;true] Erigaisi might have underestimated this obstructive move. 25. b2d2  25... h4h6 Another obstruction. 26. a1a2  26... h6e6  27. a2b2  27... e6e7  28. b2c2 Finally, White has a chance to go for b3-b4 but voted against it. 28... e7c7  29. c2c5  29... c7b6 Vidit skillfully maneuvers $1 30. d2c3  30... d6c4 [%c_effect c4;square;c4;type;GreatFind;persistent;true] And provokes the d3-d4 push at last. 31. d3d4  31... c4d6 Thus, Black reaches a nearly perfect version of the Carlsbad with a beautiful knight versus bishop pair. 32. f1d3  32... d6e4 Too solid $1 33. d3e4  33... e8e4  34. c1b1  34... b6b4  35. c3b4  35... a5b4  36. g1f1  36... f7f5 Black should definitely play on the kingside in the endgame as well. 37. g2g3  37... g7g5  38. f1e2  38... g8f7  39. e2d3  39... f5f4  40. a4a5 [%c_effect a5;square;a5;type;GreatFind;persistent;true] Fixing some targets on the queenside. 40... f4e3  41. f2e3  41... h7h5 Black on his turn is trying to win the f3-square for his rooks. 42. b1f1  42... f7g6  43. d3d2  43... e4e6 The culmination of the game. Black has been pressing and at the end of the day, Erigaisi goes passive. 44. f1e1 Almost never a good idea in the rook endgames $1 44... a8f8  45. d2e2  45... g5g4 [%c_effect g4;square;g4;type;GreatFind;persistent;true] That is the thing: the black rooks infiltrate. 46. h3g4  46... h5g4  47. a5a6 Too late... 47... b7a6  48. c5a5  48... f8f3 And Black is winning. 49. e2d3  49... f3g3  50. a5a6  50... g3f3  51. a6a8 