[Event "USA Championship 2021"]
[Site "Saint Louis"]
[Date "2021.10.12"]
[Round "5.6"]
[White "Xiong, Jeffery"]
[Black "Shankland, Sam"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "2700"]
[BlackElo "2714"]
[Annotator "TA"]
[PlyCount "75"]
[EventDate "2021.10.06"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
{[%evp 9,75,5,20,-12,13,3,26,0,8,12,45,52,52,40,56,43,41,38,41,31,70,62,70,0,
56,66,68,73,101,97,120,120,131,112,120,107,162,156,178,171,186,101,148,150,174,
145,173,150,201,210,188,165,154,168,216,218,204,212,215,207,264,233,484,486,
497,477,487,479] Harding,T: 'Albert Becker (1896-1984)'} 1. Nf3 c5 2. c3 d5 3.
d4 e6 4. Bf4 Bd6 5. e3 Nc6 6. Bg3 {[%csl Ga7,Gb2,Gc3,Rc7,Gd4,Ge3,Re7,Gf2,Gg7]
[%CAl Gd4e5,Gf6g7,Gf6g5,Ge5f4,Gf3g5,Gf3e5,Gg3d6,Rd6e7,Gd4c5,Gb6a7,Gb6a5,Gc5b4,
Rc5d6,Rd6c7] [#] D02: 1 d4 d5 2 Nf3 sidelines, including 2...Nf6 3 g3 and 2...
Nf6 3 Bf4.} Nge7 {is recently more successful than 6...Nf6.} (6... Nf6 7. Nbd2
O-O (7... Bxg3 8. hxg3 Qd6 (8... Qe7 9. Qa4 O-O 10. Ne5 Nxe5 11. dxe5 Nd7 12.
Nf3 c4 13. Qd1 f6 14. exf6 Nxf6 15. Qd4 Ne4 16. Bxc4 Nxf2 17. Kxf2 dxc4 18.
Qxc4 h6 19. Rad1 Kh8 20. Kg1 e5 21. Rh5 Bf5 22. Qh4 Qe6 23. g4 Bg6 24. Rxe5
Qxa2 25. g5 h5 26. Qb4 Rad8 27. Kh2 b6 {1/2-1/2 (27) Hebden,M (2556)-Arkell,K
(2438) London 1999 CBM 071 [Avrukh,B]}) 9. Bd3 e5 10. dxe5 Nxe5 11. Nxe5 Qxe5
12. Qa4+ Bd7 13. Qf4 Qe7 14. O-O-O O-O-O 15. e4 dxe4 16. Nxe4 Nxe4 17. Bxe4 h6
18. Bd5 Rhe8 19. Rd2 Be6 20. Re1 Qf8 21. Bxe6+ Rxe6 22. Rxe6 fxe6 23. Qxf8 Rxf8
24. Kd1 Kc7 25. Ke2 Rf5 26. g4 Re5+ 27. Kf3 Rd5 28. Ke3 Re5+ 29. Kf4 Rd5 30.
Rxd5 exd5 31. g5 hxg5+ 32. Kxg5 Kd6 33. Kf5 b5 34. f4 a5 35. a3 a4 36. g4 c4
37. g5 d4 38. cxd4 b4 39. Kg6 bxa3 40. bxa3 c3 41. f5 c2 42. Kxg7 c1=Q 43. g6
Qc7+ {0-1 Grachev,B-Potkin,V/Ulan Ude RUS 2009/}) (7... c4 8. Ne5 Qc7 9. f4 b5
10. Qf3 Bb7 11. Be2 b4 12. O-O O-O-O 13. Rfc1 h5 14. Nxc6 Bxc6 15. cxb4 h4 16.
Be1 Bxb4 17. a3 Bxd2 18. Bxd2 Ne4 19. Be1 Ba4 20. Bxc4 dxc4 21. Qxe4 Bc6 22.
Qc2 Bb5 23. b3 Kb8 24. bxc4 Bc6 25. Rab1+ Bb7 26. Qa4 Rd6 27. Ba5 Qd7 28. Qxd7
Rxd7 29. c5 Ka8 30. Rb2 Be4 31. Rd1 Rb7 32. Rb4 h3 33. g3 Rhb8 34. Rd2 Rxb4 35.
axb4 a6 36. Rb2 g6 37. Kf2 Rb5 38. Bb6 f5 39. Ke2 Kb7 40. Kd2 Bd5 41. Kc3 Be4
42. d5 exd5 43. Kd4 Kc6 44. Ke5 Bf3 45. Ke6 Bh5 46. Kf6 Kb7 47. Kg5 Kc6 48. g4
Bxg4 49. Kxg6 Kd7 50. Kf6 Kc6 51. Ke6 {1-0 (51) Barberans Sola,S (1869)-Benet
Saniger,X (1710) Salou 2021}) (7... Ne4 8. Nxe4 dxe4 9. Nd2 f5 10. dxc5 Bxc5
11. Nb3 Qxd1+ 12. Rxd1 Be7 13. Bb5 Bd7 14. O-O a6 15. Bxc6 Bxc6 16. Nd4 Bd5 17.
b3 b5 18. Nxf5 exf5 19. Rxd5 O-O 20. Be5 Rac8 21. a4 bxa4 22. bxa4 Bf6 23. Bd4
Bd8 24. g3 Rc4 25. a5 g6 26. Rb1 Bf6 27. Rd6 Bxd4 28. cxd4 Ra8 29. h4 Ra7 30.
h5 Ra4 31. h6 Rxa5 32. Rb8+ Kf7 33. Rh8 Ra1+ 34. Kg2 Ke7 35. Rb6 Rd7 36. Rxh7+
{1-0 (36) Devos,P-Plavchitch,S Brussels 1936}) (7... Qe7 8. Ne5 Bxe5 9. dxe5
Nd7 10. f4 f5 11. Nf3 Nf8 12. Be2 Ng6 13. h4 O-O 14. h5 Nh8 15. Bh4 Qc7 16. Qd2
Nf7 17. O-O-O Qa5 18. Kb1 b5 19. g4 fxg4 20. Nh2 b4 21. Nxg4 bxc3 22. bxc3 Rb8+
23. Ka1 Rb3 24. Be1 Ba6 25. Rb1 Rxb1+ 26. Kxb1 Rb8+ 27. Ka1 Qa3 28. Bxa6 Na5 {
0-1 (28) Lee,F-Sergeant,E Tunbridge Wells/ Kent 1908}) 8. Bd3 Qe7 (8... Re8
$142 $5 {Harding} 9. Ne5 Bxe5 10. dxe5 Nd7 11. f4 c4 12. Bc2 Qb6 13. Kf2 Qxb2
14. Rc1 Qxa2 15. Qe2 f5 16. exf6 Nxf6 17. Bh4 Rf8 18. Bxf6 Rxf6 19. Nf3 Qa3 20.
Bxh7+ Kxh7 21. Ng5+ Kg8 22. Qh5 Ne5 23. Qh7+ Kf8 24. Qh8+ Ke7 25. Qxg7+ Kd6 26.
Kg3 Nd7 27. e4 Kc6 28. e5 Qf8 29. exf6 Qxf6 30. Qg8 Nc5 31. Qe8+ Bd7 32. Qxa8
e5 33. Nh3 Qg6+ 34. Kf2 Nd3+ 35. Kf1 Nxc1 36. Nf2 Qc2 37. g3 Nd3 38. Qxa7 d4
39. Nxd3 Bh3+ 40. Ke1 cxd3 {0-1 Burn,A-Marshall,F/Ostend BEL 1906/}) 9. Ne5 $1
Bxe5 10. dxe5 Nd7 11. f4 f6 12. Nf3 fxe5 13. fxe5 g6 $2 (13... Qe8 14. O-O Qh5
15. e4 Nb6 16. a4 a5 17. h4 Bd7 18. exd5 Nxd5 19. Be4 Qg4 20. Bxh7+ Kh8 21. Kh2
Ne3 22. Qxd7 Nxf1+ 23. Rxf1 Kxh7 24. Qxb7 Nxe5 25. Nxe5 Qxa4 26. b3 Qe8 27.
Qe4+ Kg8 28. Rxf8+ Qxf8 29. Ng6 Qe8 30. Ne7+ Kf8 31. Bd6 Ra6 32. Qxe6 Rxd6 33.
Qxd6 Qxe7 34. Qxe7+ Kxe7 35. c4 Ke6 36. g4 Ke5 37. Kg3 Kd4 38. h5 Kc3 39. g5
Kxb3 40. h6 gxh6 41. gxh6 a4 42. h7 a3 43. h8=Q Kxc4 44. Qa1 Kb3 45. Qb1+ {
1-0 Dos Santos,H-Moraes,A/Sao Paulo BRA 1997/}) (13... c4 $5 14. Bc2 Nc5 15.
Qb1 Nd3+ 16. Bxd3 cxd3 17. Qxd3 Bd7 18. e4 dxe4 19. Qxe4 Qc5 20. Ng5 Rf5 21.
O-O-O Qe7 22. Nf3 Be8 23. Rd6 Bg6 24. Qc4 Re8 25. Rhd1 Bh5 26. Rd7 Qf8 27. Qh4
Bxf3 28. gxf3 Rxf3 29. Rxb7 Ne7 30. Rdd7 Rf1+ 31. Kc2 Nf5 32. Qg5 Rc8 33. Rxa7
Kh8 34. Rab7 Qe8 35. Kd2 h6 36. Qg4 Rd8 37. Qa4 Rxd7+ 38. Qxd7 Qh5 39. Kc2 Rd1
40. Qxe6 Qe2+ 41. Kb3 Nd4+ 42. cxd4 Qf3+ 43. Ka4 Qxb7 44. Qd6 Qe4 45. b4 Rxd4
46. Qc5 Qd3 47. Qc6 Rd5 48. b5 Qd2 49. Bf2 Rd3 50. Qc4 Rf3 51. Bg3 Rc3 {
0-1 Stefanova,A-Wells,P/Pulvermuehle GER 2000/}) (13... g5 14. h4 c4 15. Bc2 g4
16. Ng5 h6 (16... h5 17. e4 Ndxe5 18. exd5 Qc5 19. Qd2 Qxd5 20. O-O-O Nd3+ 21.
Bxd3 cxd3 22. Qxd3 Qxd3 23. Rxd3 e5 24. Rd5 Bf5 25. Bxe5 Bg6 26. Bg3 Rad8 27.
Rxd8 Nxd8 28. Rd1 Nc6 29. Ne6 Re8 30. Nf4 Bf7 31. b3 Re3 32. Bf2 Re4 33. g3 a6
34. Rd7 Re7 35. Rxe7 Nxe7 36. c4 Nf5 37. Kd2 Kg7 38. a4 Kf6 39. Ne2 Ke5 40. Bb6
Ke4 41. Ba5 Kf3 42. Bc7 Kf2 43. a5 Be8 44. Be5 Bc6 45. b4 Bf3 46. Nc1 Nxg3 47.
Nd3+ Kg2 48. b5 Nf5 49. c5 axb5 50. Nf4+ Kg3 51. Ke1 Kxh4 52. Bf6+ Kg3 53.
Nxh5+ Kg2 54. Nf4+ Kg1 55. Ne2+ Kh1 56. Be5 Bxe2 57. Kxe2 Ne7 58. Kf2 Nc6 59.
Bf4 Nxa5 60. Kg3 b4 61. Kxg4 b3 62. Bc1 Kg2 {0-1 Bohak,J-Knol,E/corr ICCF 2001/
}) 17. Nh7 Rf7 18. Nf6+ Nxf6 19. exf6 Qxf6 20. Qxg4+ Rg7 21. Qf4 Qxf4 22. Bxf4
Rxg2 23. O-O-O h5 24. Rdg1 Rg4 25. Bg6 (25. Bd1 e5 26. Bxg4 hxg4 27. Bg5 Bf5
28. Rh2 Kf7 29. Rf2 Ke6 30. Rgf1 Rf8 31. h5 e4 32. Bf4 Bh7 33. h6 b5 34. Kd2
Rf6 35. Rg2 Ne5 36. Ke2 Rg6 37. Bxe5 Kxe5 38. Rh1 Kf5 39. Rh5+ Rg5 40. Rf2+ Kg6
41. Rxg5+ Kxg5 42. Rf7 Kxh6 43. Rxa7 Bf5 44. Rb7 g3 45. Rxb5 Kg5 46. Rxd5 g2
47. Kf2 g1=N 48. Kxg1 Kg4 49. Rxf5 Kxf5 50. Kg2 {1-0 Contreras Poblete,J-Van
Esbroeck,J/corr IECG 2006/}) 25... Bd7 26. Bxh5 Rxg1+ 27. Rxg1+ Kh8 28. e4 dxe4
29. Bg6 Rg8 30. Rg5 Be8 31. Bxe4 Rxg5 32. Bxg5 Kg8 33. Kd2 Kg7 34. Be3 a5 35.
Bb6 Kh6 36. Bf3 a4 37. Be3+ Kg7 38. h5 Kf6 39. h6 Bg6 40. Be2 b5 41. Bc5 Nd8
42. Bf3 e5 43. Bb6 Nf7 44. Bc6 Nxh6 45. Bxb5 Nf7 46. Bc5 Bd3 47. Bxa4 Bb1 48.
a3 Ke6 49. b4 Ng5 50. Bc2 Ne4+ 51. Kc1 Bxc2 52. Kxc2 Kd7 53. Bg1 Nf6 54. a4 Nd5
55. b5 Nc7 56. Kd2 Nd5 57. a5 Kc8 58. Bh2 Nc7 59. b6 Na6 60. Bxe5 Nc5 61. Ke3
Kb7 62. Bd6 Nb3 63. Bb4 Kc6 64. Ke4 Nd2+ 65. Kd4 Nf3+ 66. Kxc4 Ne5+ 67. Kd4 Nd7
68. c4 Nb8 69. Ke5 Kb7 70. Kd6 Nc6 71. Bc3 Nd8 72. Bd4 Ka6 73. Kd7 Nb7 74. c5 {
1-0 Cruzado Duenas,C-Taylor,T/corr ICCF 2006/}) 14. O-O $1 $146 (14. Bb5 a6 (
14... Qg7 15. Bxc6 bxc6 16. Qa4 Bb7 17. O-O Rf5 18. Qa5 g5 19. h3 Qe7 20. Rae1
Qd8 21. Qxd8+ Rxd8 22. e4 dxe4 23. Rxe4 Nb6 24. c4 Rd3 25. b3 Nd7 26. Ree1 h6
27. Rd1 Rxd1 28. Rxd1 Rf7 29. Nd2 Bc8 30. Ne4 Re7 31. Bf2 Kg7 32. Bxc5 Rf7 33.
Bxa7 {1-0 Dresen,U-Schuh,D/NRW GER 2004/}) 15. Bxc6 bxc6 16. O-O a5 17. Rf2 Ba6
18. Bf4 Qg7 19. g4 Kh8 20. h4 h6 21. Rc1 Bc4 22. b3 Ba6 23. Rcc2 Rfe8 24. Rh2
c4 25. b4 axb4 26. cxb4 Bb5 27. Qc1 Ra4 28. a3 Ra6 29. Ra2 Ba4 30. Ra1 c5 31.
Rb2 Rb8 32. bxc5 Bb3 33. e4 Kh7 34. exd5 Nxc5 35. Ne1 exd5 36. Qe3 Ne6 37. Nf3
Rf8 38. Bg3 Qa7 39. Qxa7+ Rxa7 40. Bf2 Raf7 41. Nd4 Nxd4 42. Bxd4 Rf4 43. Bf2
Rxg4+ 44. Kh2 c3 45. Rxb3 Rxf2+ 46. Kh3 Rc4 47. Rb7+ Kg8 48. e6 c2 49. e7 Re2
50. Rb8+ Kf7 51. e8=Q+ Rxe8 52. Rf1+ Ke7 53. Re1+ Re4 54. Rxe8+ Kxe8 55. Rc1
Rc4 56. Kg3 d4 57. Kf3 d3 58. Ke3 Rc3 59. a4 Rb3 {0-1 Lee,F-Przepiorka,D/
Barmen GER 1905/}) (14. h4 Qg7 15. h5 gxh5 (15... Ndxe5 16. hxg6 Nxd3+ 17. Qxd3
c4 18. Qc2 Qxg6 19. Qxg6+ hxg6 20. O-O-O b5 21. Rh6 Kg7 22. Rdh1 Kf6 23. Rh7
Ba6 24. Rf1 Kf5 {1-0 Toupalik,B-Lenz,A/corr Schweizerische Schachzeiturn 1913/}
25. Ne5+ Ke4 26. Rh4+ Rf4 27. Rhxf4+ Kxe5 28. Rxc4#) 16. Bf4 Ndxe5 17. Nxe5
Nxe5 18. Bxh7+ Qxh7 19. Bxe5 Rf5 20. Bf4 Bd7 21. Qf3 Qg6 22. Rh3 Kf7 23. O-O-O
Bc6 24. e4 dxe4 25. Qe3 e5 26. Bh2 Qg5 27. Qxg5 Rxg5 28. Rf1+ Ke6 29. g4 Rh8
30. gxh5 Rgxh5 31. Rxh5 Rxh5 32. Bg1 Bb5 33. Re1 Bd3 34. Bxc5 Rh2 35. Bxa7 Rc2+
36. Kd1 Rxb2 37. Be3 Kd5 38. Rg1 Kc4 39. Rg5 Kxc3 40. Rxe5 Rb1+ {0-1
Schlechter,C-Rotlewi,G/Karlsbad CZE 1911/}) 14... Qg7 15. e4 $1 Ndxe5 $2 (15...
Ne7 $2 16. Qd2 c4 17. Bc2 dxe4 18. Ng5 Nc5 19. Qd4 b6 20. Rxf8+ Qxf8 21. Bxe4
Rb8 22. Rf1 Nf5 23. Bxf5 gxf5 24. Qh4 Qe7 25. Qh6 Rb7 26. Rf4 Rd7 27. Rxc4 Rd1+
28. Kf2 Rd2+ 29. Ke3 Ba6 30. Rd4 Re2+ 31. Kf3 Qb7+ 32. Kf4 Nd3+ 33. Rxd3 Re4+
34. Nxe4 Qxe4+ 35. Kg5 Qg4+ 36. Kf6 Bxd3 37. Ke7 Qg7+ 38. Qxg7+ Kxg7 39. Kxe6
Bc4+ 40. Kxf5 Bxa2 41. e6 Bd5 42. Be5+ Kf8 43. Bd6+ Ke8 44. g4 a5 45. g5 {
1-0 Becker,A-Hatscheck/corr 1914/}) (15... d4 $5 16. Qb3 Rxf3 17. Rxf3 Ndxe5
18. Bxe5 Nxe5 19. Rh3 dxc3 20. Qxc3 b6 21. Rd1 $16 {Myers}) 16. Nxe5 Nxe5 17.
Rxf8+ Kxf8 18. Bxe5 (18. exd5 $1 Nxd3 (18... exd5 19. Bb5 $1 Be6 20. Qe2 $18 {
Harding}) 19. Qxd3 Kg8 20. d6 Bd7 21. Qe3 Rf8 22. Qxc5 $18 {Myers}) 18... Qxe5
19. Qf3+ Ke7 20. exd5 exd5 21. Qf2 $1 Kd6 (21... Qd6 22. Rf1 Kd8 23. Qf7 c4 24.
Bc2 Qc5+ 25. Rf2 a5 26. Qxh7 Ra6 27. Bxg6 $16 {Myers}) 22. Re1 Qg5 23. h4 (23.
b4 $5 cxb4 24. cxb4 b6 25. h4 Qg4 26. Qf8+ Kc7 27. Qg7+ Bd7 28. Qe5+ Kd8 29.
Qf6+ Kc7 30. Ba6 Qxb4 31. Rc1+ $18 {Myers}) 23... Qd8 24. Bb5 c4 (24... Kc7 25.
Qxc5+ Kb8 26. Re8 Qc7 27. Qxc7+ Kxc7 28. Rh8 $18 {Myers}) 25. Qf4+ Kc5 26. Re8
Qd6 27. b4+ {1-0 (27) Becker,A-Redeleit,F Austria-Hungary 1914 Myers [Harding,
T]}) (6... Qc7 7. dxc5 Bxg3 8. hxg3 Nf6 9. Nbd2 e5 10. Qa4 Bd7 11. Qh4 Ne7 12.
b4 Nf5 13. Qh2 a5 14. Be2 Ng4 15. Qh5 Nf6 16. Qh2 h5 17. Ng5 b6 18. g4 Ne7 19.
gxh5 bxc5 20. bxc5 a4 21. Rb1 Ra5 22. O-O Rxc5 23. c4 dxc4 24. Nge4 Nxe4 25.
Nxe4 Rc6 26. Rfc1 Bf5 27. Bf3 c3 28. Rb7 Qxb7 29. Nd6+ Rxd6 30. Bxb7 c2 31. Bf3
Rb6 32. Qxe5 Rb1 33. Bc6+ Kf8 34. Kh2 Rxh5+ 35. Kg3 Rxc1 36. Qb8+ Nc8 37. Qb4+
Kg8 38. Be4 Rb1 39. Qc3 c1=Q 40. Qxc1 Rxc1 41. Bxf5 Rxf5 {0-1 (41) Atanasov,A
(2070)-Khusnutdinov,R (2484) Chess.com INT 2021}) 7. Nbd2 cxd4 8. exd4 {
White has an edge.} O-O (8... Nf5 9. Bd3 O-O 10. Bxd6 Qxd6 11. O-O Bd7 12. a4
f6 13. Re1 Rae8 14. Qb3 g6 15. Bb5 Kg7 16. Qa3 a6 17. Bxc6 Bxc6 18. Qxd6 Nxd6
19. Nb3 Re7 20. a5 Rfe8 21. Nc5 e5 22. dxe5 fxe5 23. b3 Kf6 24. Nd2 d4 25. cxd4
exd4 26. Rxe7 Rxe7 27. Nf3 Nf5 28. Re1 Rxe1+ 29. Nxe1 Ke5 30. f3 Kd5 31. Ncd3
Bb5 32. Kf2 Ne7 33. Nf4+ Kd6 34. h4 Nc6 35. Nc2 Ke5 36. Nh3 d3 37. f4+ Ke4 38.
Ng5+ Kxf4 39. Ne3 Nxa5 40. Nxh7 Nxb3 41. Nf8 Be8 42. Nc4 d2 43. g3+ Ke4 44. Ne3
a5 45. Nh7 a4 46. Nf6+ Kd3 47. Nfd5 a3 48. Nb4+ Kc3 49. Nbc2 d1=Q {0-1 (49)
Panjwani,R (2448)-Bareev,E (2638) ICC INT 2021}) 9. Bd3 Ng6 10. Qc2 f5 {[#]}
11. Bxd6 $146 ({Predecessor:} 11. O-O-O Nf4 12. Bxf4 Bxf4 13. Kb1 Bxd2 14. Qxd2
a6 15. h3 b5 16. Rhe1 Rb8 17. Ne5 Nxe5 18. Rxe5 {1-0 (31) De Prado Rodriguez,O
(2237)-Mateus,D (1778) Famalicao 2015}) 11... Qxd6 12. O-O Bd7 13. Rfe1 Rae8
14. Bb5 Nb8 15. Bf1 Nc6 16. Bb5 Nb8 17. a4 a6 18. Bf1 Nc6 {[%CAl Bb8c6,Bc6d8,
Bd8f7][%mdl 32]} 19. b4 Nd8 20. b5 axb5 21. axb5 ({Don't do} 21. Bxb5 $6 Nf7
$11) 21... Nf7 22. c4 e5 (22... dxc4 $16 {was necessary.} 23. Nxc4 Qc7) 23. c5
$18 Qf6 {Threatening ...e4.} 24. dxe5 Nfxe5 25. Qa4 ({White should play} 25.
Qb3 $18) 25... Nxf3+ 26. Nxf3 Re4 27. Qa7 Bc8 28. Red1 Nf4 (28... Ne5 $16) 29.
Rac1 Re7 30. Qb8 g5 31. c6 bxc6 32. Rxc6 Bd7 33. Rxf6 {[%csl Gf6][%CAl Rb8f8]}
Rxb8 {[#]} 34. Nd4 $1 ({Much less strong is} 34. Nxg5 $6 Kg7 $16) 34... Re5 35.
Rd6 Rb7 (35... Be8 36. g3 Ng6) 36. b6 {White is clearly winning.} Re7 37. g3
Ng6 38. Bg2 {Weighted Error Value: White=0.10/Black=0.24} 1-0
