[Event "USA Championship 2021"]
[Site "Saint Louis"]
[Date "2021.10.10"]
[Round "4.5"]
[White "Shankland, Sam"]
[Black "Dominguez Perez, Leinier"]
[Result "0-1"]
[ECO "D02"]
[WhiteElo "2714"]
[BlackElo "2760"]
[Annotator "TA"]
[PlyCount "110"]
[EventDate "2021.10.06"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
{[%evp 9,110,-2,5,11,9,11,18,0,0,0,8,0,0,5,9,9,17,17,17,16,21,26,27,28,22,24,
14,25,41,0,0,-6,0,-10,-8,0,0,-8,-3,-3,-3,-3,-3,-8,-8,-8,-7,-4,-4,-8,-8,-15,-4,
0,0,-8,-8,-8,-8,-8,-8,-8,-8,-143,-143,-143,-143,-143,-143,-143,-143,-151,-151,
-272,-260,-445,-445,-660,-586,-1063,-3898,-2977,-2262,-845,-1803,-5706,-5289,
-2804,-1510,-1737,-1768,-1486,-1411,-1326,-1057,-956,-557,-2663,-2651,-29976,
-29978,-29971,-29970]} 1. d4 d5 2. Nf3 Nf6 3. Bf4 e6 4. e3 c5 5. c3 Bd6 6. Bb5+
{D02: 1 d4 d5 2 Nf3 sidelines, including 2...Nf6 3 g3 and 2...Nf6 3 Bf4.} (6.
Bg3 Nc6 (6... O-O 7. Bd3 Qc7 $1 {[%mdl 4] is now more promising than 7...Nc6.}
(7... b6 8. Nbd2 Ba6 9. Bxa6 Nxa6 10. O-O Bxg3 11. hxg3 Nc7 12. Ne5 c4 13. f4
b5 14. g4 Ne4 15. a4 a6 16. g5 f6 17. gxf6 gxf6 18. Qg4+ Kh8 19. Ng6+ hxg6 20.
Qxg6 Qe7 21. Rf3 Qg7 22. Qh5+ Qh7 23. Rh3 Qxh5 24. Rxh5+ Kg7 25. Nxe4 dxe4 26.
Rc5 Nd5 27. axb5 axb5 28. Rxa8 Rxa8 29. Rxb5 Nxe3 30. Kf2 Nd1+ 31. Ke2 Ra1 32.
g4 Rb1 33. Rb7+ Kg6 34. Rb6 Rxb2+ 35. Rxb2 Nxb2 36. Ke3 Nd1+ 37. Kxe4 Nxc3+ 38.
Ke3 Nd5+ 39. Kf3 c3 40. Ke4 c2 41. f5+ exf5+ 42. gxf5+ Kf7 43. Kxd5 c1=Q 44.
Kd6 Qd2 45. d5 Qf4+ 46. Kd7 Qxf5+ 47. Kc7 Qxd5 48. Kc8 Qd6 49. Kb7 Ke6 50. Kc8
Qe7 51. Kb8 Kd6 52. Ka8 Kc6 53. Kb8 Qb7# {0-1 (53) Avila Pavas,S (2373)-Sarkar,
J (2356) Chess.com INT 2021}) 8. Nbd2 Nbd7 9. O-O e5 10. e4 (10. dxe5 Nxe5 11.
Nxe5 Bxe5 12. Bxe5 Qxe5 13. Nf3 Qe7 14. Qa4 Bd7 15. Qh4 h6 16. Rfe1 Rfe8 17.
Rad1 Bc6 18. Bf5 Ne4 19. Qxe7 Rxe7 20. Bxe4 dxe4 21. Nd2 Rd8 22. Nb3 Rxd1 23.
Rxd1 b6 24. Rd6 Rd7 25. Rxd7 Bxd7 26. Kf1 Bb5+ 27. Ke1 Bd3 28. f3 f5 29. fxe4
Bxe4 30. Kf2 Bd5 31. Nc1 Kf7 32. b4 cxb4 33. cxb4 Bc4 34. e4 fxe4 35. Ke3 Bd5
36. Kd4 Ke6 37. a3 Bb7 38. Ne2 Kf5 39. h3 g5 40. g3 h5 41. a4 h4 42. g4+ Ke6
43. Nc3 e3 44. Kxe3 Bg2 45. Ne4 Bxe4 46. Kxe4 a6 47. Kd4 Kd6 48. Ke4 Ke6 49.
Kd4 Kd6 {1/2-1/2 (49) Etienne,A (1995)-Stetsenko,I (1683) chess.com INT 2021})
10... exd4 11. cxd4 Bxg3 12. hxg3 dxe4 13. Nxe4 Nxe4 14. Bxe4 Nf6 15. Qc2 Nxe4
16. Qxe4 cxd4 17. Ng5 g6 18. Qxd4 Qb6 $146 ({Predecessor:} 18... Rd8 19. Qh4 h5
20. Rac1 Qb6 21. Qc4 Qf6 22. Ne4 Qe6 23. Qe2 Qe7 24. Rfe1 Bf5 {0-1 (61)
Pajeken,J (2357)-Harsha,B (2509) Chess.com INT 2021}) 19. Qxb6 axb6 20. Ne4 Be6
21. Nc3 b5 22. a3 Rfd8 23. Rfd1 Bb3 24. Rxd8+ Rxd8 25. Nxb5 Rd2 26. Nc3 Rxb2
27. Rb1 Rxb1+ 28. Nxb1 Kf8 29. f3 Ke7 30. Kf2 Kd6 31. Ke3 Kc5 32. Nd2 Bd5 33.
g4 h6 34. g3 Bc6 35. Kd3 Bb5+ 36. Ke4 f6 37. Ke3 Bc6 38. f4 Bd5 39. Kd3 Bg2 40.
Kc3 g5 41. Kd3 Kb5 42. Ne4 Ka4 43. Nxf6 Kxa3 44. Ne4 gxf4 45. gxf4 Bf3 46. Nf2
b5 47. f5 b4 48. f6 Bd5 49. Kd4 Bf7 50. Nd3 b3 51. Kc3 Ka2 52. Nc1+ Ka3 53. Nd3
Ka2 54. Nc1+ Ka3 55. Nd3 {1/2-1/2 (55) Aaryan,V (2277)-Pranesh,M (2437)
Tornelo INT 2021}) 7. Nbd2 O-O 8. Bd3 b6 9. Ne5 (9. e4 Be7 10. e5 Nh5 11. a3 a5
12. Qe2 Ra7 13. O-O c4 14. Bc2 b5 15. h4 g6 16. Bh2 Bxh4 17. g4 Ng7 18. Nxh4
Qxh4 19. Kg2 f5 20. exf6 Qxf6 21. Bd6 Rff7 22. f4 e5 23. dxe5 Qh4 24. f5 gxf5
25. Rh1 Qd8 26. Qe3 d4 27. cxd4 Ne8 28. Rh6 Rg7 29. Rg1 Rad7 30. d5 Ne7 31.
Bxe7 Rdxe7 32. Qd4 Bb7 33. Kf2 Qxd5 34. Qxd5+ Bxd5 35. Bxf5 Rxe5 36. Re1 Rxe1
37. Kxe1 b4 38. axb4 axb4 {Grischuk,A (2774)-Nakamura,H (2816) Skopje 2015 1/
2-1/2}) 9... Bxe5 10. dxe5 Nd7 11. Nf3 f5 12. exf6 Qxf6 13. Qc2 $14 g6 14.
O-O-O e5 15. Bb5 e4 16. Rxd5 exf3 $1 {[%csl Rc6,Rf6][%CAl Gd5d6]} 17. Rd6 fxg2
18. Rg1 Qe7 19. Bxc6 Ne5 20. Bd5+ Nf7 21. Rxg6+ Kh8 22. Bxa8 Ne5 23. Bxe5+ Qxe5
24. R6xg2 Bf5 25. e4 {1-0 (25) Favarel,C (2256)-Mathieu,O (1969) Vaujany 2016})
(6. Ne5 O-O 7. Nd2 Nc6 8. Bd3 Qc7 9. Ndf3 Ne4 10. h4 (10. O-O f6 11. Nxc6 bxc6
12. Bxd6 Qxd6 13. Nd2 Nxd2 14. Qxd2 e5 15. dxc5 Qxc5 16. b4 Qe7 17. e4 Be6 18.
f4 Rad8 19. Qe2 d4 20. c4 Qxb4 21. Rab1 Qe7 22. f5 Bf7 23. Rb2 Rb8 24. Rfb1 Qc7
25. Qc2 Rb6 26. c5 Rxb2 27. Qxb2 Qa5 28. Rc1 Rd8 29. a3 g6 30. g4 h5 31. h3
hxg4 32. hxg4 Kg7 33. Kg2 Rb8 34. Qe2 Qxa3 35. Rc2 Rb3 {0-1 (35) Morales Perez,
G (1251)-Hernandez Fonseca,M (1969) Santa Rosa 2021}) 10... f6 11. Nxc6 Bxf4
12. Ne7+ Qxe7 13. exf4 Qd6 14. g3 cxd4 15. Nxd4 Bd7 16. Qc2 e5 17. Ne2 Rae8 18.
Bxe4 dxe4 19. fxe5 fxe5 20. O-O Bc6 21. Rad1 Qf6 22. Rd2 Qf3 23. Rd6 e3 24.
Rxc6 exf2+ 25. Kh2 Qxc6 26. c4 Kh8 27. Nc3 Qf3 28. Nd5 e4 29. Qa4 e3 30. Nxe3
Rxe3 31. Qb4 Qxg3+ 32. Kh1 Qh3# {0-1 (32) Mlynek,M (1502)-Skrzyczek,B (2022)
Wroclaw 2021}) (6. Bd3 Bxf4 7. exf4 cxd4 8. Nxd4 O-O 9. O-O Nc6 10. Nf3 Qc7 11.
Qd2 b6 12. Na3 a6 13. Rfe1 Bb7 14. Nc2 Rad8 15. Ncd4 Ne4 16. Qe3 Ne7 17. Rad1
Ng6 18. g3 Rfe8 19. h4 Qc8 20. Ne5 f6 21. Nxg6 hxg6 22. Ne2 e5 23. fxe5 fxe5
24. f3 d4 25. cxd4 exd4 26. Qf4 Rf8 27. fxe4 Rxf4 28. Nxf4 Qg4 29. Kg2 Rc8 30.
Rc1 g5 31. hxg5 Qxg5 32. Bc4+ Rxc4 33. Rxc4 Qb5 34. Rc2 d3 35. Rf2 Qb4 36. Nxd3
Bxe4+ 37. Rxe4 Qxe4+ 38. Rf3 Qe2+ 39. Nf2 Qxb2 40. a3 b5 41. g4 a5 42. Kg3 Qe5+
43. Kg2 Qd5 44. Nd3 b4 45. axb4 axb4 46. Nxb4 Qd2+ 47. Kg3 Qxb4 48. Rf5 g6 {
0-1 (48) Nguyen,N (2641)-Zierk,S (2499) Chess.com INT 2021}) 6... Nc6 7. Bxc6+
{now scores much better than the old 7.Ne5.} (7. Ne5 Qc7 8. Qa4 Bd7 9. Nxd7
Nxd7 10. Bxc6 bxc6 11. Bxd6 Qxd6 12. Qa3 Qb8 13. O-O O-O 14. Nd2 Qb6 15. Rac1
Rab8 16. b3 Rfe8 17. Nf3 e5 18. dxc5 Nxc5 19. Rfd1 e4 20. Ne1 Red8 21. Rc2 Ne6
22. Rcd2 a5 23. Qc1 f5 24. c4 f4 25. exf4 Nxf4 26. Rc2 Rf8 27. Qe3 Qa6 28. g3
Nh3+ 29. Kg2 Qc8 30. f3 Qe6 31. cxd5 cxd5 32. Kh1 Rbd8 33. f4 g5 34. Ng2 Rf7
35. Rcd2 gxf4 36. Nxf4 Nxf4 37. gxf4 Rg7 38. Rg1 Rg6 39. Qd4 Qf5 40. Rdg2 Rdd6
41. Rxg6+ hxg6 42. Rf1 Qh3 43. Kg1 e3 44. Qd3 d4 45. f5 Rd5 46. Qa6 Qg4+ 47.
Kh1 Rxf5 {0-1 (47) Koci,V (2070)-Stancl,V (2180) Czech Republic 2000}) (7. Bg3
Bxg3 8. hxg3 Qb6 9. Qa4 Bd7 10. Nbd2 Rc8 11. O-O O-O 12. Rfc1 a6 13. Bxc6 Bxc6
14. Qa3 Nd7 15. b4 cxb4 16. cxb4 Bb5 17. Nb3 Qd6 18. Nc5 b6 19. Nxd7 Qxd7 20.
Ne5 Qb7 21. Rxc8 Rxc8 22. Rc1 Rc7 23. g4 f6 24. Nf3 h6 25. Nd2 Qc8 26. Rxc7
Qxc7 27. Qb2 Kf7 28. f3 Ke7 29. Kf2 Bd3 30. Qb3 Qc2 31. Qxc2 Bxc2 32. Ke2 Kd6
33. Nf1 Kc6 34. Kd2 Bb1 35. a4 Ba2 36. Kc3 Bc4 37. Ng3 g6 38. f4 Kd6 39. f5 g5
40. fxe6 Kxe6 41. a5 b5 42. Kd2 Ba2 43. Kc2 Bc4 44. Kc3 Ba2 45. Kb2 Bc4 46. Kc2
Kf7 47. Nf5 Ke6 48. Ng3 Kf7 49. Kd2 Ba2 50. Ne2 Bc4 51. Nc3 h5 52. gxh5 f5 53.
Ke1 Kg7 54. Kf2 Kh6 55. g4 fxg4 56. Kg3 Kxh5 57. e4 Kg6 58. Nxd5 Bxd5 59. exd5
Kf5 60. Kf2 Kf6 61. Kg3 Ke7 {0-1 (61) Garcia Guerrero,I (2311)-Figueredo
Losada,L (2353) Mexico City 2021}) (7. Qa4 Bxf4 8. exf4 Qd6 9. Ne5 Bd7 10. Qa3
Nxe5 11. fxe5 Qb6 12. Be2 Ng8 13. dxc5 Qc7 14. f4 Ne7 15. Nd2 g5 16. fxg5 Qxe5
17. Nf3 Qe3 18. Qb4 Nc6 19. Qh4 Qxc5 20. O-O-O Qe3+ 21. Rd2 O-O-O 22. Bb5 h6
23. Bxc6 Bxc6 24. g6 fxg6 25. Re1 Qc5 26. Rxe6 g5 27. Qd4 Qa5 28. Ne5 Qxa2 29.
Nxc6 bxc6 30. Rxc6+ Kb7 31. Rc5 Rhf8 32. Rxd5 Rf1+ 33. Kc2 Rxd5 34. Qxd5+ Qxd5
35. Rxd5 Rh1 36. h3 Rg1 37. Rd2 h5 38. Kd3 g4 39. hxg4 hxg4 40. Ke3 Rf1 41. Rf2
Ra1 42. Rf4 a5 43. Kd3 g3 44. Rg4 a4 45. Rxg3 Ra2 46. Kc2 a3 47. Kb3 Rxb2+ 48.
Kxa3 Rb1 49. Ka2 Rb5 50. Rg8 Kc6 51. g4 Kd6 52. g5 Ke6 53. g6 Kf6 54. Ka3 Rb1
55. Ka4 Ke6 56. c4 Rg1 57. Kb5 Kd6 58. g7 {1-0 (58) Lewtak,D (2380)-Marcinczyk,
M (2090) Warsaw 2021}) 7... bxc6 8. Bxd6 {The position is equal.} Qxd6 9. Qa4
O-O (9... Nd7 10. O-O cxd4 11. cxd4 c5 12. Rc1 cxd4 13. exd4 O-O 14. Qa3 Qxa3
15. Nxa3 Ba6 16. Rc7 Rfd8 17. Rac1 Kf8 18. h3 Ke8 19. R1c6 Be2 20. Nd2 a5 21.
f3 Rdb8 22. Kf2 Bd3 23. Ke3 Bg6 24. b3 a4 25. Nc2 axb3 26. axb3 Kd8 27. Ne1 Ra1
28. Nd3 Bxd3 29. Kxd3 g5 30. Rc1 Ra2 31. R7c2 Ra7 32. h4 h6 33. hxg5 {1/2-1/2
(33) Bluebaum,M (2670)-Babula,V (2559) Playchess.com INT 2021}) 10. Nbd2 (10.
Qa3 Ne4 11. Nfd2 cxd4 12. Nxe4 Qxa3 13. Nxa3 dxe4 14. cxd4 Rb8 (14... Ba6 15.
Rc1 e5 16. Rxc6 Rac8 17. Rxc8 Rxc8 18. Kd2 exd4 19. exd4 f5 20. Rc1 Rxc1 21.
Kxc1 Kf7 22. Nb1 Ke6 23. Nc3 Bb7 24. g3 g5 25. b4 f4 26. Kd2 h5 27. a4 a6 28.
b5 axb5 29. axb5 h4 30. gxf4 gxf4 31. b6 Ba8 32. d5+ Ke5 33. Nxe4 Kxd5 34. Ng5
Kc5 35. Ne6+ Kxb6 36. Nxf4 Kc5 37. Ke3 Kd6 38. Ng6 h3 39. Nf4 Ke5 40. Nxh3 Kf5
41. f3 Bb7 42. Kf2 Ba8 43. Kg3 Bb7 44. Nf2 Bc8 45. Ng4 Kg5 46. h4+ Kf5 47. Ne3+
Kf6 48. Kf4 Be6 49. h5 Ba2 50. Ng4+ Kg7 51. Kg5 Bb1 52. f4 Kf7 53. f5 Ba2 54.
Ne5+ Kg7 55. h6+ Kh7 56. Ng4 Kg8 57. Kf6 Kh7 58. Kg5 Kg8 59. Nf6+ Kf7 60. Nh5
Bb1 61. h7 {1-0 (61) Bluebaum,M (2639)-Makhnev,D (2513) Chess.com INT 2021})
15. b3 c5 16. dxc5 Ba6 17. Rc1 Rfd8 18. Nc4 Rd5 19. Nd6 f5 20. f3 Bd3 21. Kf2
Kf8 22. g4 Ke7 23. Rhg1 g6 24. Rg3 exf3 25. Rxf3 Ba6 26. e4 Rd2+ 27. Kg1 Rxa2
28. exf5 gxf5 29. gxf5 exf5 30. Re1+ Kd7 31. Nxf5 Kc6 32. Rc1 Rd2 33. Ne7+ Kd7
34. Re3 Rf8 35. Ra1 Rff2 36. Rxa6 Rg2+ 37. Kf1 Rxh2 38. Rxa7+ Ke8 39. Nc6+ Kf8
40. Rf3+ Kg8 41. Ne7+ Kg7 42. Nd5+ Kg8 43. Nf6+ Kh8 44. Rxh7+ Rxh7 45. Nxh7
Kxh7 46. Rg3 {1-0 (46) Aronian,L (2781)-So,W (2770) chess24.com INT 2021})
10... cxd4 11. cxd4 c5 {[#]} 12. O-O $146 ({Predecessor:} 12. Qa3 Nd7 13. Rc1
Rb8 14. dxc5 Qc7 15. O-O a5 16. Nb3 Ba6 17. Rfd1 {0-1 (56) Rusev,K (2570)
-Steinbuerg,K (2499) Chess.com INT 2017}) 12... Qa6 13. Qxa6 Bxa6 14. Rfc1 cxd4
15. Nxd4 Rab8 16. b3 Rfc8 17. N2f3 Kf8 18. Ne5 Ke8 19. f4 Ne4 20. a4 Rxc1+ 21.
Rxc1 Rc8 22. Rxc8+ Bxc8 $11 {Endgame KBN-KNN} 23. b4 f6 24. Nec6 a6 25. Na7 Bd7
26. b5 axb5 27. axb5 Ke7 28. b6 {aiming for b7.} Nc5 29. Nac6+ Bxc6 30. Nxc6+ {
KN-KN} Kd6 31. Nd4 g6 32. Kf2 e5 33. fxe5+ fxe5 34. Nf3 Nd7 35. Ng5 h5 36. Nf7+
{White is now going downhill.} (36. b7 $11 {keeps the balance.}) 36... Ke7 $17
37. Ng5 Nxb6 38. e4 d4 39. Ke2 Nd7 40. Kd3 Nc5+ 41. Kc4 {[#]} (41. Ke2 $17)
41... Ne6 $1 $19 {[%CAl Re6g5]} 42. Nf3 (42. Nh3 {was the only chance.}) 42...
Kd6 43. g3 {[#]} (43. Nd2 $142 g5 44. Kb4) 43... g5 $1 {[%CAl Rg5g4]} 44. h4 g4
45. Nd2 Nc5 46. Kb5 Nd3 47. Kc4 Nf2 48. Kb4 Kd7 49. Kc4 Nh1 50. Nf1 Kc6 51. Kb4
Kb6 52. Kc4 Ka5 53. Kd5 {[#]} Nxg3 $1 {[%mdl 512]} 54. Nd2 (54. Nxg3 d3) 54...
Kb4 55. Nc4 Kc3 {Weighted Error Value: White=0.58/Black=0.15} 0-1
