1. d2d4  1... g8f6  2. c2c4  2... e7e6  3. g2g3  3... d7d5  4. f1g2  4... f8b4 [%c_arrow b1c3;keyPressed;none;from;b1;opacity;0.8;to;c3;persistent;false,c1d2;keyPressed;none;from;c1;opacity;0.8;to;d2;persistent;false,b1d2;keyPressed;none;from;b1;opacity;0.8;to;d2;persistent;false] A very popular choice in this particular move order of the Catalan Opening. This check forces White to transpose the game to a Nimzo-Indian after 5.Nc3, place the bishop in a slightly worse position with 5.Bd2, or place the knight in an undesirable square after 5.Nd2. 5. b1d2  5... e8g8  6. g1f3  6... b7b6  7. e1g1  7... c8b7  8. b2b3 A simple and logical move, preparing to develop the bishop. 8... b8d7  9. c1b2  9... d8e7  10. a2a3  10... b4d6  11. f3h4 [%c_effect h4;square;h4;type;Interesting;persistent;true][%c_arrow h4f5;keyPressed;none;from;h4;opacity;0.8;to;f5;persistent;false] An interesting move that shows a small problem with putting the queen on e7. White wants to capture the pawn on d5 and then place the knight on f5. 11... g7g6 [%c_arrow g6f5;keyPressed;none;from;g6;opacity;0.8;to;f5;persistent;false] Useful to protect the f5-square, although it weakens the kingside a little bit. 12. b3b4 A new move. 12... c7c5 This is forced, otherwise White just plays c4-c5. 13. b4c5  13... b6c5  14. c4d5  14... e6d5 Black has to capture with the pawn and accept an isolated queen pawn, which is actually not bad in this position. 15. d4c5  15... d7c5 Black has a good version of an isolated queen pawn position, with good piece development. The game is balanced. 16. d2b3  16... f6e4 16...Rab8 and 16...Ba6 are good alternatives. 17. b3a5 [%c_effect a5;square;a5;type;Interesting;persistent;true][%c_highlight h4;keyPressed;none;opacity;0.8;square;h4;persistent;false,a5;keyPressed;none;opacity;0.8;square;a5;persistent;false][%c_arrow a5b7;keyPressed;none;from;a5;opacity;0.8;to;b7;persistent;false] They say a knight on the rim is dim, but Giri, a player with superb positional understanding, places both of his knights on the side. He does it with clear intentions: the knight goes to a5 to capture the bishop, winning the bishop pair. 17... a8b8  18. d1d4 [%c_highlight d4;keyPressed;none;opacity;0.8;square;d4;persistent;false,b2;keyPressed;none;opacity;0.8;square;b2;persistent;false] The good old queen and bishop battery, forcing Black to move the pawn to f6. 18... f7f6  19. a5b7  19... e7b7  20. d4d1 [%c_highlight d4;keyPressed;none;opacity;0.8;square;d4;persistent;false] A very difficult but necessary move. The queen feels uncomfortable on d4, with Be5 or Nb3 coming, so White just goes back, freeing the d4-square for the bishop. The capture on b2 is not so good for Black, although Caruana plays it anyway. 20... b7b2 [%c_effect b2;square;b2;type;Inaccuracy;persistent;true] A drastic measure, sacrificing a pawn. This was not really necessary. 21. d1d5  21... g8g7  22. g2e4  22... b8d8  23. a1a2  23... b2e5 Black should exchange queens. 24. d5e5  24... d6e5 White is a clear pawn up, but Black has fair drawing chances. 25. e4g2  25... f6f5  26. h4f3  26... e5f6  27. a2c2  27... c5e4  28. f1c1  28... f8f7 [%c_effect f7;square;f7;type;Inaccuracy;persistent;true] This allows Giri to execute a strong knight maneuver. 29. f3e1 [%c_effect e1;square;e1;type;GreatFind;persistent;true][%c_arrow e1d3;keyPressed;none;from;e1;opacity;0.8;to;d3;persistent;false] A magnificent positional move, leading the knight to d3. The position is very difficult to defend now. 29... f7e7  30. e1d3  30... d8d7 [%c_effect d7;square;d7;type;Mistake;persistent;true] The decisive mistake. 31. g2e4 [%c_effect e4;square;e4;type;GreatFind;persistent;true] 31... f5e4  32. d3c5  32... d7d6  33. e2e3 [%c_highlight e4;keyPressed;none;opacity;0.8;square;e4;persistent;false] The endgame is technically winning because the e4-pawn is very weak, apart from White's extra pawn. 33... d6c6  34. a3a4  34... g7h6  35. c5b3 [%c_highlight e4;keyPressed;none;opacity;0.8;square;e4;persistent;false] The plan is to exchange one of the rooks and then attack the e4-pawn. 35... c6b6  36. b3d2  36... b6e6  37. c2c6 [%c_effect c6;square;c6;type;GreatFind;persistent;true] 37... a7a5  38. c6e6  38... e7e6  39. c1c4 The pawn is doomed. 39... e6b6  40. d2e4 The rest is easy for a player with such remarkable technique as Giri. 40... f6e7  41. c4c7  41... b6e6  42. e4d2  42... g6g5  43. d2b3  43... e7b4  44. b3d4  44... e6e5  45. g3g4 [%c_effect g4;square;g4;type;GreatFind;persistent;true][%c_arrow d4f5;keyPressed;none;from;d4;opacity;0.8;to;f5;persistent;false] Securing a dream square for the knight on f5. 45... h6g6  46. g1g2  46... e5d5  47. g2f3  47... d5d8  48. c7c6  48... g6f7  49. d4e6  49... d8d5  50. f3e4  50... d5d2  51. e6g5  51... f7e7  52. f2f4  52... d2a2 