9（九）

Christopher Woojin Yoo – 雷挺婕 (Léi Tǐngjié)

1st Julius Bär Challengers Chess Tour; 1st stage; Polgár Challenge; time control: 10 minutes plus 5 seconds per move; chess24.com, April 9, 2021

Queen’s Gambit Declined D38

1. d4 Nf6 2. Nf3 d5 3. c4 e6 4. Nc3 Bb4 5. Qb3 c5 6. Bg5 Qa5 7. Bxf6 dxc4 8. Qxc4 gxf6 9. dxc5 Bd7. 9. ... Nc6 transposes to never-ending theory: 10. Rc1 Qxc5 11. Qb3 Qb6 12. e3 Bd7 13. a3 Ba5 14. Qc2 Rc8 15. Be2 Bxc3+ 16. bxc3 Qc5 17. Qb2 Qb6 18. Qa1 Na5 19. Nd2 Nb3 20. Nxb3 Qxb3 21. c4 Rg8 22. Qxf6 Qxa3 23. 0-0 Qe7 24. Qd4 Qc5 25. Ra1 a5 26. Rfb1 Qxd4 27. exd4 a4 28. g3 Bc6 29. d5 exd5 30. cxd5 Bxd5 31. Rxa4 Kf8 32. Bd3 h6 33. Be4 Bc6 34. Rc4 Rg4 35. f4 Rg8 36. Rbc1 Kg7 37. Bxc6 Rxc6 38. Rxc6 bxc6 39. Rxc6 Ra8 40. Rc2 Ra3 41. Kg2 Kg6 42. Kh3 Ra5 43. Kh4 Rb5 44. g4 Kg7 45. f5 Rb3 46. Rg2 Ra3 47. Rg3 Ra2 48. h3 Ra6 49. Rb3 Rc6 50. Kh5 Ra6 51. h4 Rf6 52. Rb5 Ra6 53. Rb7 Rf6 54. Rc7 Kh7 55. Rc5 Ra6 56. Rd5 Kg7 57. Rd7 Rf6 58. Rb7 Kh7 59. Ra7 Kg7 60. Rd7 Kh7 61. Rd5 Ra6 62. g5 hxg5 63. hxg5 Ra1 64. Rd7 Kg8 65. f6 Rh1+ 66. Kg4 Rg1+ 67. Kf5 Rf1+ 68. Ke5 Rg1 69. Kd6 Rxg5 70. Rd8+ Kh7 71. Ke7 Ra5 72. Kxf7 Ra7+ 73. Ke6 Ra6+ 74. Rd6 Ra8 75. Ke7 Ra7+ 76. Rd7 Ra8 77. Kf7 Ra1 78. Re7 Ra8 79. Re6 Rb8 80. Re1 Rb7+ 81. Re7 Rb8 82. Ra7 Rb1 83. Ke6+ Kg6 ½ : ½ Shirov – 侯逸凡 (Hóu Yìfán), 5th Chess World Cup, Tromsø 2013, match game 1. 10. Rc1 Bxc5 11. e3 Nc6 12. Be2 Qb4TN (12. ... Be7 13. 0-0 0-0 14. Qf4 Kh8 15. Rfd1 Rad8 16. Ne4 f5 17. Nd6 Bxd6 18. Rxd6 Bc8 19. Ng5 f6 20. Nxh7 Kxh7 21. Qh4+ Kg8 22. Qg3+ Kh8 23. Qh4+ Kg7 24. Qg3+ Kh8 25. Rc4 f4 26. Rxf4 Rf7 27. Qg6 Rg7 28. Qxf6 Qg5 29. Rxd8+ Nxd8 30. Qxg5 Rxg5 31. Rf8+ Rg8 32. Rxg8+ Kxg8 33. g4 e5 34. f4 exf4 35. exf4 Ne6 36. f5 Nf4 37. Kf2 Kg7 38. Kf3 Nxe2 39. Kxe2 Kf6 40. h4 Bd7 41. Ke3 Ba4 42. Kf4 Bd1 43. g5+ Kf7 44. Ke5 Be2 45. b4 a6 46. a4 b6 47. Kd6 Bg4 48. f6 b5 49. a5 Bh5 50. Ke5 Bg4 51. Kd5 Bh5 52. Kd6 Ke8 53. Kd5 Kf7 54. Kd6 Ke8 55. Ke6 Kf8 56. f7 Bxf7+ 57. Kf6 Bh5 58. g6 Be2 59. Kg5 Bd3 60. h5 Kg7 61. h6+ Kg8 62. Kf6 Be2 63. Kg5 Bd3 64. Kf6 Bc2 65. g7 Kh7 66. Ke7 Bb3 67. Kd6 Kxh6 68. Kc6 Kxg7 69. Kb6 Kf7 70. Kxa6 Ke7 71. Kxb5 Kd7 72. Kb6 Kc8 73. Ka7 Bc4 74. Kb6 Kb8 75. b5 Bxb5 ½ : ½ Vocaturo – Debashis, 12th Tradewise Gibraltar Chess Festival, Catalan Bay 2014) 13. Qd3 Ne5?! 13. ... Be7 14. 0-0 Rd8 seems more solid. 14. Nxe5 fxe5 15. Bf3 f5? Despite any appearance to the contrary, Black is not threatening anything. It was not too late for her to proceed as suggested in note after her 13th move.

16. 0-0! e4 17. Bh5+ Ke7 (17. ... Kd8 18. Qd2+−)

18. Nd5+! exd5? This loses brilliantly (and immediately), but 18. ... Kd6 19. Nxb4+ exd3 20. Nxd3 would leave White a Pawn ahead with great advantage. 19. Qxd5 Be6 20. Qe5 b6 21. Qg7+ Kd6 22. Rfd1+ Kc6 23. Qe7! Rac8. The King is naked. If 23. ... Bc8 then 24. a4! with threat of mate by Rd1-d6#. 24. Qxe6+ Kb7 25. Rd7+ Ka8 26. Qd5+ 1 : 0.