1. d2d4  1... g8f6  2. c2c4  2... e7e6  3. b1c3  3... f8b4 The Nimzo-Indian had always had solid  reputation. 4. d1c2  4... d7d5 But this is a surprise. So far Ju has always  played either: 5. a2a3  5... b4c3  6. c2c3  6... f6e4  7. c3c2  7... c7c5  8. d4c5  8... b8c6  9. g1f3  9... d8a5  10. c1d2  10... e4d2  11. c2d2  11... d5c4  12. d2a5  12... c6a5  13. e2e3  13... b7b5  14. c5b6  14... a7b6 A solid, sound  novelty. Black needs to hold in the last two games to triumph with the  title and Ju plays the opening very safe. 15. f3d2  15... b6b5  16. a3a4 Tan has to trade more pawns as otherwise there is a serious risk  that her bishop remains workless on the f1-a6 diagonal. 16... a5b7  17. a1a3  17... a8a4  18. a3a4  18... b5a4  19. f1c4  19... c8d7 The opening outcome is perfect for  Black. Ju's only weakness can be easily defended by both the knight and  the bishop, whereas the pawn on b2 does not look great at the moment. 20. d2e4  20... e8e7  21. e1e2  21... h8b8 Hitting the weakness on b2. 22. h1b1  22... d7c6  23. e4c3  23... b7c5 Black managed to arrange her pieces optimally and stands even slightly better. She can now search for weaknesses on the wing where she  is stronger--the kingside. 24. f2f3  24... f7f5  25. e2d2  25... g7g5  26. c4e2  26... h7h5  27. d2c2  27... g5g4 Things start to look grim for the world champion. Ju threatens to open  the g-file and seize it with the rook. Next there will be second-rank  penetration and will all go downhills for White. 28. b1d1 In a  difficult moment Tan demonstrates again her enormous defensive skills. 28... b8g8  29. d1d4  29... g4f3  30. e2f3  30... c6f3  31. g2f3 in both cases Blck retains winning chances,  although White should be objectively able to hold. 31... g8g2  32. d4d2  32... g2g1  33. d2d4 Only this is inaccurate. 33... g1f1  34. c3a4  34... e6e5 An  unpleasant in-between move. 35. d4h4  35... f1f2 A tricky in-between check. 36. c2d1  36... c5a4  37. h4a4  37... f2f3  38. d1e2 Once again, on the verge of the  defeat (and the end of the match!) the world champion plays like a  lion(ess)! 38... f3h3  39. a4a6 Giving two pawns in one go, but keeping the black  king away. 39... h3h2  40. e2f3  40... h2h3  41. f3f2  41... h3h2  42. f2g3  42... h2e2  43. g3f3  43... e2b2  44. a6h6  44... b2h2 Now it seems as Black have enough  resources to win the game, however... 45. e3e4 This saves the day! 45... h2h4 The only chance. 46. e4f5  46... h4f4  47. f3e3  47... f4f5  48. e3e4  48... f5g5 The pawns are defended almost  perfectly. Almost, because the king cannot use the fifth rank and this is  the reason why Black cannot win. 49. h6a6  49... e7f7  50. a6a7  50... f7g6  51. a7a6  51... g6g7  52. a6a7  52... g7h6  53. a7a8  53... g5g7  54. e4e5  54... h6g5 