[Event "Norm Congress-IM 2019"]
[Site "Saint Louis"]
[Date "2019.05.16"]
[Round "1.1"]
[White "Torres Rosas, Luis Carlos"]
[Black "Kiewra, Keaton"]
[Result "0-1"]
[ECO "D56"]
[WhiteElo "2320"]
[BlackElo "2375"]
[Annotator "TA"]
[PlyCount "182"]
[EventDate "2019.05.16"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 25,182,11,10,10,6,13,9,-140,7,0,6,7,39,32,37,41,44,40,53,23,32,20,40,39,39,37,45,44,41,4,6,6,37,33,22,24,18,21,30,10,27,22,40,7,33,-3,-2,-4,-4,-21,-34,-34,-34,-34,-34,-37,-37,-97,-100,-225,-225,-237,-218,-217,-189,-175,-149,-141,-130,-217,-203,-290,-298,-290,-297,-322,-297,-418,-297,-305,-305,-305,-305,-305,-59,-66,-66,-73,-81,-81,-81,-89,-94,-118,-112,-111,-108,-108,-108,-108,-97,-108,-108,-1831,-4313,-2181,-1824,-5081,-5081,-2940,-2437,-2073,-1923,-1589,-1559,-29966,-29967,-29974,-29975,-29975,-29976,-29976,-29963,-29964,-29965,-29965,-29966,-29966,-29964,-29964,-29963,-29964,-29966,-29964,-29965,-29964,-29965,-29968,-29970,-29970,-29964,-29968,-29970,-29970,-29971,-29972,-29973,-29973,-29975,-29974,-29975,-29975,-29976,-29976,-29977,-29981,-29982,-29998,-29999]} 1. d4 d5 2. c4 e6 3. Nc3 Be7 4. Nf3 Nf6 5. Bg5 h6 6. Bh4 O-O 7. e3 Ne4 8. Bxe7 Qxe7 9. Rc1 c6 10. Bd3 Nxc3 11. Rxc3 dxc4 12. Bxc4 Nd7 13. O-O ({Predecessor:} 13. Qc2 b6 {½-½ (46) Borovikov,V (2601)-Bakre,T (2509) Kavala 2010}) 13... b6 {[#]} 14. Qc2 $146 {D56: Queen's Gambit Declined: Lasker Defence} (14. Qe2 Bb7 15. Ba6 Bxa6 16. Qxa6 c5 17. Rfc1 Rfd8 18. h3 e5 19. Qb7 Rdb8 20. Qe4 Re8 21. Rd1 exd4 22. Qxe7 Rxe7 23. exd4 Re2 24. Rd2 Rxd2 25. Nxd2 Rd8 26. Nb3 cxd4 27. Rd3 Re8 {½-½ (27) Le,Q (2715)-Nakamura,H (2763) chess.com INT 2018}) 14... Bb7 15. Bd3 c5 16. Bh7+ {The position is equal.} Kh8 {And now ...Bxf3 would win.} 17. Be4 Bxe4 18. Qxe4 Nf6 19. Qc2 {[%cal Rd4c5]} Nd5 20. Rc4 {[%cal Rd4c5]} cxd4 21. Nxd4 Qg5 22. Nf3 Qf6 23. Rc1 Rad8 24. a3 Rd7 25. h3 Rfd8 26. b4 Ne7 27. Rd4 Rxd4 28. Nxd4 e5 (28... Rc8 $5 {[%cal Rc8c2]} 29. Qd2 Rxc1+ 30. Qxc1 Qe5 $11) 29. Nb5 a6 30. Nc3 Qe6 31. Qe2 Qc8 32. Qb2 Qc4 33. Ne2 Qe6 34. Qc2 Nf5 35. Qc6 Rd1+ 36. Kh2 Rd2 {White must now prevent ...Qxc6.} 37. Qxe6 (37. Ng3 {with more complications.} Rxf2 38. Nxf5 Qxf5 39. Qxb6 Qd3 40. Qb8+) 37... fxe6 38. Ng3 Rxf2 39. Nxf5 exf5 $15 {[%mdl 4096] Endgame KR-KR} 40. Rc6 Ra2 41. Re6 (41. b5 $15) 41... Rxa3 $17 42. Rxe5 (42. Rxb6 $17 Rxe3 43. Rxa6) 42... Rb3 $1 $19 43. Re8+ Kh7 44. Ra8 Rxb4 ({Don't take} 44... Rxe3 45. Rxa6 Re6 46. Kg3 $17) 45. Rxa6 Rb3 46. Kg1 Rb2 47. Ra7 (47. Kh2 $17 {was necessary.}) 47... b5 {[%cal Bb6b5,Bb5b4,Bb4b3,Bb3b2][%mdl 32]} 48. Ra6 (48. Kh2 $142) 48... b4 49. Rb6 b3 50. Kh2 Rb1 51. Kg3 (51. Rb7 {keeps fighting.}) 51... b2 52. h4 g6 53. Rb7+ Kg8 54. Kf2 Rh1 $2 (54... g5 $19 55. hxg5 hxg5) 55. Rxb2 Rxh4 56. Rb7 $1 Re4 57. Kf3 Kf8 58. Ra7 Re7 59. Ra6 Kf7 60. g3 Re6 61. Ra5 Kf6 62. Rb5 Re4 63. Ra5 g5 64. g4 $2 {[%mdl 8192]} (64. Ra6+ $17 Re6 65. Ra4) 64... Rxg4 65. Ra6+ Kg7 66. Ra7+ Kg6 67. Ra6+ Kh5 68. Rf6 Rg1 69. Kf2 Ra1 70. Rxf5 Kg4 {Black mates.} 71. Rf6 Ra2+ 72. Kf1 h5 73. e4 Ra4 74. e5 Re4 75. e6 h4 76. Kf2 Re5 77. Kg2 Kh5 78. Kf3 Re1 79. Kf2 {[#]} Re4 $1 {[%cal Re4e5]} 80. Kf3 {[#]} Re5 $1 81. Rf8 Rxe6 82. Rh8+ Kg6 83. Kg4 Re4+ 84. Kh3 Re3+ 85. Kh2 Kf5 86. Rf8+ Kg4 87. Rf2 h3 88. Ra2 Kh4 89. Ra7 Re2+ 90. Kh1 g4 91. Ra8 Re1+ {Accuracy: White = 43%, Black = 79%.} 0-1

[Event "Norm Congress-IM 2019"]
[Site "Saint Louis"]
[Date "2019.05.16"]
[Round "1.2"]
[White "Grabinsky, Aaron"]
[Black "Ezra Paul Chambers"]
[Result "0-1"]
[ECO "B30"]
[WhiteElo "2338"]
[BlackElo "2241"]
[Annotator "TA"]
[PlyCount "80"]
[EventDate "2019.05.16"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,112,-12,-35,-35,-41,-35,-35,-43,-80,-71,-84,-48,-41,-65,-127,-78,-200,-204,-204,-213,-205,-193,-206,-204,-205,-193,-185,-162,-227,-207,-228,-210,-241,-185,-191,-194,-258,-212,-291,-196,-196,-196,-196,-196,-227,-178,-235,-235,-227,-227,-229,-228,-235,-235,-242,-242,-242,-242,-242,-242,-242,-242,-249,-249,-249,-249,-304,-304,-324,-324,-324,-324,-324,-314,-348,-325,-4789,-4789,-4770,-977,-29989,-29990,-29990,-29991,-29991,-29991,-29992,-29993,-29993,-29994,-29994,-29986,-29986,-29987,-29987,-29988,-29988,-29985]} 1. e4 c5 2. Nf3 Nc6 3. Bb5 e6 4. Bxc6 bxc6 5. d3 Ne7 6. O-O Ng6 7. e5 Be7 8. Nc3 O-O 9. Re1 f6 {B30: Sicilian: 2...Nc6 3 Bb5, lines without ...g6} 10. exf6 Bxf6 11. Be3 (11. Ne4 d6 12. d4 cxd4 13. Nxd4 Bxd4 14. Qxd4 d5 15. Bg5 e5 16. Qc3 Qd7 17. Ng3 {1-0 (34) Mendoza,R (2343)-Uribe,M (2354) Pamplona 2012}) 11... d6 {Black is slightly better.} 12. d4 $146 ({Predecessor:} 12. Qd2 Bxc3 13. Qxc3 Rxf3 14. gxf3 Nh4 15. f4 Qe8 16. Kf1 e5 17. Red1 Qh5 18. fxe5 Ng2 19. Kg1 Nxe3 20. fxe3 Qg4+ 21. Kf2 Be6 {0-1 (21) Lewyk,I-Herriot,B (2072) ICCF email 2011}) 12... cxd4 13. Nxd4 Bd7 14. Ne4 Be7 15. Nf3 ({White should play} 15. Nb3 $15) 15... d5 16. Nc3 (16. Nc5 $17 {is a better defense.}) 16... e5 $19 {aiming for ...Bg4.} 17. Nxd5 cxd5 18. Qxd5+ Rf7 19. Nxe5 Nxe5 20. Qxe5 Bf6 21. Qd5 Rb8 {[%cal Ba8b8,Bb8b2,Bb2c2][%mdl 32]} 22. Rad1 (22. Bd4 $142) 22... Rxb2 23. Bxa7 Rxc2 24. a4 g6 25. a5 Qc8 26. Qb3 (26. Bb6 $142) 26... Rb2 27. Qg3 Qc3 28. Bb6 Qxg3 29. hxg3 Ra2 30. Re3 Kg7 31. Rde1 (31. Rdd3 $142) 31... Bf5 32. R3e2 Ra4 33. Rd1 Re7 34. Rxe7+ Bxe7 35. Rd4 Ra1+ 36. Kh2 h5 37. Rc4 {[#] Black must now prevent Bd4+.} Kf7 38. Rd4 Ke6 39. Rc4 Bd6 40. Rc3 Kd5 {Played: Bd6-b4} 0-1

[Event "Norm Congress-IM 2019"]
[Site "Saint Louis"]
[Date "2019.05.16"]
[Round "1.3"]
[White "Giannatos, Peter"]
[Black "Gauri, Shankar"]
[Result "0-1"]
[ECO "A06"]
[WhiteElo "2290"]
[BlackElo "2375"]
[Annotator "TA"]
[PlyCount "76"]
[EventDate "2019.05.16"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,76,-10,0,-12,0,1,16,10,47,23,36,0,13,0,-15,0,8,-24,-10,0,1,-31,-19,-29,-27,-27,-26,-68,-45,-55,-42,-84,-70,-87,-85,-117,-87,-79,-47,-133,-113,-250,-231,-244,-237,-229,-197,-189,-189,-232,-206,-231,-206,-221,-228,-216,-214,-218,-160,-204,-150,-204,-143,-29988,-29987]} 1. Nf3 d5 2. g3 g6 3. Bg2 Bg7 4. O-O e5 5. d3 Ne7 6. Nbd2 O-O 7. e4 Nbc6 8. a3 {A07: Réti Opening: New York and Capablanca Systems} (8. exd5 Nxd5 9. Re1 Re8 10. a3 Bf5 11. Ne4 b6 12. Bg5 f6 13. c4 Bxe4 14. Rxe4 Nde7 15. Bc1 Qd7 16. Re1 Rad8 17. Bf1 {0-1 (29) Mamedyarov,S (2801)-Giri,A (2782) chess.com INT 2018}) 8... h6 9. b4 {[%cal Bb2b4,Bb4b5][%mdl 32]} dxe4 $146 ({Predecessor:} 9... a5 10. b5 Nd4 11. a4 c6 12. c3 Nxf3+ 13. Qxf3 Be6 14. Ba3 Re8 15. Qe2 f5 {0-1 (41) Schroeder,M-Tikranian,A (2242) Belgium 2017}) 10. dxe4 {The position is equal.} a5 11. b5 Nd4 12. Rb1 Be6 13. c3 Nxf3+ 14. Bxf3 Qd3 15. Rb2 (15. Be2 $5 {[%cal Re2d3]} Qxc3 16. Nb3 $11) 15... Rfd8 16. Be2 Qd6 17. Qa4 Nc8 $36 {[%mdl 2048] White is under pressure.} 18. Nc4 Nb6 19. Nxb6 $1 cxb6 20. Be3 Qc7 21. c4 Bf8 22. Rc1 Kh7 23. c5 Bxc5 ({Reject} 23... bxc5 $6 24. b6 $11) 24. Bxc5 {Be3 is the strong threat.} bxc5 25. b6 Qd6 26. Rd1 (26. Bc4 $1 $15) 26... Qe7 $17 27. Rbd2 (27. Rc1 $17) 27... Rd4 $19 28. Rxd4 cxd4 ({Much less strong is} 28... exd4 29. f4) 29. Rc1 Qd6 30. Qb5 Rd8 {aiming for ...d3.} 31. Bd3 Qxa3 32. Rc7 {[#]} Qb4 $1 {White must now prevent ...Qxb5.} 33. Qxb4 axb4 34. Rxb7 {KRB-KRB} Rd6 35. f4 Kg7 36. Rb8 b3 {[%cal Bb4b3,Bb3b2][%mdl 32]} 37. Kf2 (37. fxe5 $17 Rc6 38. b7) 37... b2 38. Ke2 $2 {[%mdl 8192] [#]} (38. fxe5 $17 Rc6 39. b7) 38... Bc4 $1 {[%mdl 512] Accuracy: White = 32%, Black = 50%.} 0-1

[Event "Norm Congress-IM 2019"]
[Site "Saint Louis"]
[Date "2019.05.16"]
[Round "1.4"]
[White "Chiku-Ratte, Olivier-Kenta"]
[Black "Wu, Rochelle"]
[Result "1/2-1/2"]
[ECO "D70"]
[WhiteElo "2378"]
[BlackElo "2174"]
[Annotator "TA"]
[PlyCount "103"]
[EventDate "2019.05.16"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,103,27,35,18,-34,-31,-20,0,-22,-9,-25,0,-39,170,0,70,71,79,29,37,45,69,97,70,41,168,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. c4 g6 3. f3 d5 4. cxd5 Nxd5 5. e4 Nb6 6. Nc3 Bg7 7. Be3 O-O 8. Qd2 e5 9. d5 c6 {D70: Grünfeld: Unusual White 3rd moves (met by ...d5)} 10. O-O-O ({Better is} 10. h4 $11) (10. Rd1 cxd5 11. exd5 N8d7 12. Nh3 e4 13. fxe4 Ne5 14. Nf2 f5 15. Bc5 Rf7 16. Be2 f4 17. Bf3 {½-½ (25) Aronian,L (2805)-Vachier Lagrave,M (2789) London 2017}) 10... cxd5 $15 11. exd5 Na6 12. h4 Bd7 13. Kb1 Rc8 14. Ne4 Rc7 $146 (14... Qc7 $15 {stays ahead.}) ({Predecessor:} 14... Nc4 15. Bxc4 Rxc4 16. Ne2 Bf5 17. N2g3 Qd7 18. Bh6 Rd4 19. Qe3 Qxd5 20. Rc1 Nb4 21. b3 Bxe4+ 22. fxe4 Qa5 {0-1 (22) Quintiliano Pinto,R (2277)-Mendonca,M (2146) Sao Paulo 2011}) 15. Bh6 $2 ({White should try} 15. h5 $18) 15... Nc4 (15... Bxh6 $11 16. Qxh6 Bf5) 16. Bxc4 $1 $14 Rxc4 17. Bxg7 Kxg7 18. Ne2 Qb6 19. h5 $1 f5 20. Ng5 {Threatens to win with hxg6.} f4 {[#]} (20... h6 $1 $14) 21. Ne6+ $2 ({White has to play} 21. g4 $1 $18) 21... Bxe6 $11 {The position is equal.} 22. dxe6 Qxe6 23. Qd7+ Qxd7 24. Rxd7+ Rf7 25. hxg6 Rxd7 26. Rxh7+ Kxg6 {[#] ( -> ...Rd1+)} 27. Rxd7 {[%mdl 4096] Endgame KRN-KRN} Rc7 28. Rd6+ Kf5 29. Nc3 Rc6 30. Nb5 (30. Rxc6 {seems wilder.} bxc6 31. Kc2 Nb4+ 32. Kd2 Nd5 33. Kd3) 30... Rxd6 31. Nxd6+ {KN-KN} Kg5 32. a3 Kh4 {aiming for ...Kg3.} 33. Ne4 Nc7 34. Kc2 b5 35. Kd3 Ne6 36. Ke2 Nd4+ 37. Kf2 Nf5 38. Nc3 Nd4 39. Ne4 Nf5 40. Nf6 Nd4 41. Nd7 Nc6 42. Nc5 Nd4 43. Nd3 Nc6 44. b4 Kg5 45. Ke2 Kh4 46. Kf2 Kg5 47. Ke2 Kh4 48. Kf1 Kg5 49. Ke2 Kh4 50. Kf2 Kg5 51. Ke2 Kh4 52. Kf2 {Accuracy: White = 68%, Black = 74%.} 1/2-1/2

[Event "Norm Congress-IM 2019"]
[Site "Saint Louis"]
[Date "2019.05.16"]
[Round "1.5"]
[White "Rosen, Eric"]
[Black "Jacobson, Aaron"]
[Result "1/2-1/2"]
[ECO "A16"]
[WhiteElo "2338"]
[BlackElo "2311"]
[Annotator "TA"]
[PlyCount "97"]
[EventDate "2019.05.16"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,97,-12,-12,-12,-12,-18,-15,-14,-16,-20,0,-18,11,10,14,12,0,-122,-110,-114,-122,-125,-123,-108,-68,-75,-55,-132,-55,-78,-43,-55,0,0,0,-16,87,0,0,0,0,0,4,0,10,10,12,3,11,11,14,14,14,5,47,50,52,38,67,19,38,26,39,0,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,-8,-8,-8,-8,-8,-8,-8,8,8,8,-29974]} 1. c4 Nf6 2. Nc3 e5 3. e3 Nc6 4. a3 d5 5. cxd5 Nxd5 6. Qc2 {A25: English Opening vs King's Indian with ...Nc6 but without early d3} Nxc3 7. bxc3 Bd6 8. d4 O-O 9. Nf3 Qe7 10. Be2 Bd7 $146 ({Predecessor:} 10... b6 11. O-O Bb7 12. Re1 Rfe8 13. Bb2 Na5 14. Bb5 c6 {1-0 (22) Kramnik,V (2808)-Karjakin,S (2781) Stavanger 2017}) 11. O-O Rae8 12. Re1 b6 $36 {[%mdl 2048] Black is pushing.} 13. c4 (13. Nd2 $11) 13... exd4 $17 14. Bb2 dxe3 {Strongly threatening ...Bg4.} 15. Bd3 exf2+ 16. Kxf2 Bc5+ 17. Kf1 Qd6 18. Bxh7+ Kh8 19. Red1 $1 {[%cal Rd1d6]} Qe6 20. Rd5 $1 {And now Bf5 would win.} f5 (20... Qh6 $1 $15 21. Rxd7 Qxh7 22. Qxh7+ Kxh7 23. Rxc7 Rc8) 21. Re1 $11 Qf7 {Threatens to win with ...Rxe1+.} 22. Rxe8 (22. Qc1 {keeps more tension.} Rxe1+ 23. Qxe1 Be8 24. Bxf5 Qh5 25. Qg3) 22... Qxe8 {[#]} (22... Bxe8 $11 {keeps the balance.} 23. Rxf5 Qe7) 23. Bxf5 ({White should try} 23. Qc3 $1 $16 {[%csl Gb2][%cal Rc3g7][%mdl 512]} Qe7 24. Bg6) 23... Bxf5 24. Rxf5 Rxf5 25. Qxf5 Kg8 (25... Na5 {is more complex.} 26. Ng5 Qf8 27. Bxg7+ Qxg7 28. Qh3+ Kg8) 26. Qd5+ Qf7 (26... Kh8 {seems wilder.} 27. Qf5) 27. Qxf7+ $1 Kxf7 {[%mdl 4096] Endgame KBN-KBN} 28. Ke2 g6 29. Kd3 Ke6 30. g4 a6 31. a4 Ne7 32. Ng5+ Kd7 33. h4 c6 34. h5 gxh5 35. gxh5 Nf5 36. Ke4 Ng3+ {The position is equal.} 37. Kf3 Nxh5 38. Kg4 Be3 39. Kxh5 {next Ne4 is good for White.} Bxg5 $1 40. Kxg5 {Kf5 is the strong threat. KB-K3P} b5 41. c5 Ke6 $1 42. Ba3 Kd5 43. Kf6 a5 $1 44. axb5 cxb5 {aiming for ...b4.} 45. c6 Kxc6 46. Ke5 b4 47. Kd4 Kb5 (47... bxa3 $5 48. Kc3 $8 Kd5 $11) 48. Bb2 a4 49. Ke4 $2 {[%mdl 40960] Accuracy: White = 71%, Black = 62%. . An unexpected result.} (49. Kd3 $11) 1/2-1/2

[Event "Norm Congress-IM 2019"]
[Site "Saint Louis"]
[Date "2019.05.17"]
[Round "2.1"]
[White "Kiewra, Keaton"]
[Black "Jacobson, Aaron"]
[Result "0-1"]
[ECO "D02"]
[WhiteElo "2375"]
[BlackElo "2311"]
[Annotator "NA RC"]
[PlyCount "98"]
[EventDate "2019.05.16"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. Nf3 {[%emt 0:00:00]} d5 {[%emt 0:00:04]} 2. d4 {[%emt 0:00:00]} Nf6 {[%emt 0:00:05]} 3. c4 {[%emt 0:00:00]} e6 {[%emt 0:00:05]} 4. g3 {[%emt 0:00:45]} Bb4+ {[%emt 0:01:06]} 5. Nc3 {[%emt 0:00:56]} O-O {[%emt 0:01:32]} 6. Bg2 {[%emt 0:01:06]} dxc4 {[%emt 0:00:18]} 7. O-O {[%emt 0:03:25]} Nc6 {[%emt 0:02:46]} 8. a3 {[%emt 0:04:15]} Bxc3 {[%emt 0:03:14]} 9. bxc3 {[%emt 0:00:23]} a6 {[%emt 0:00:37] E20: Nimzo-Indian: 4 g3 and 4 f3} (9... Rb8 10. Bg5 h6 11. Bh4 g5 12. Nxg5 hxg5 13. Bxg5 Kg7 14. e4 Ne7 15. f4 Nh7 16. Qh5 f6 17. Bh6+ Kh8 18. Bxf8 Qxf8 {1-0 (55) Salem,A (2638)-Inarkiev,E (2689) Riadh 2017}) 10. Qc2 $146 {[%emt 0:10:09]} ({Predecessor:} 10. Bf4 b5 11. Ne5 Bb7 12. Nxc6 Bxc6 13. Bxc6 Ra7 14. Qc2 g6 15. Bg5 Qe7 16. Qd2 Kg7 17. Qf4 a5 18. e4 Ra6 19. e5 Nd5 20. Bxd5 Qe8 21. Qf6+ Kg8 22. Bh6 {1-0 (22) Plotkin,D-Muniz,A ICC INT 2009}) 10... Na5 {[%emt 0:10:38]} 11. Nd2 {[%emt 0:02:02]} c5 {[%emt 0:09:00]} 12. dxc5 {[%emt 0:03:26]} Qc7 {[%emt 0:00:21]} 13. a4 {[%emt 0:06:55]} Rd8 {[%emt 0:02:38]} 14. Ba3 {[%emt 0:03:32]} Nd7 {[%emt 0:00:19]} (14... Rb8 $11) 15. Bb4 {[%emt 0:05:57]} ({White should try} 15. Rfd1 $16) 15... Nxc5 {[%emt 0:01:41]} 16. Bxa5 {[%emt 0:00:11]} Qxa5 {[%emt 0:00:04]} 17. Nxc4 {[%emt 0:00:08]} Qc7 {[%emt 0:00:07]} 18. a5 {[%emt 0:01:00]} Bd7 {[%emt 0:03:51]} 19. Rfb1 {[%emt 0:06:09]} Bb5 {[%emt 0:04:48]} 20. Nb6 {[%emt 0:03:01]} Rab8 {[%emt 0:00:15]} 21. c4 {[%emt 0:02:23]} Bc6 {[%emt 0:00:24]} 22. Bxc6 {[%emt 0:01:33]} Qxc6 {[%emt 0:00:08]} 23. Rd1 {[%emt 0:00:29]} g6 {[%emt 0:07:41]} 24. Rxd8+ {[%emt 0:05:27]} Rxd8 {[%emt 0:00:09]} 25. Rd1 {[%emt 0:00:10]} Qc7 {[%emt 0:02:25]} 26. Rd2 {[%emt 0:00:57]} Rd6 {[%emt 0:02:17]} 27. Qd1 {[%emt 0:06:35]} Rxd2 {[%emt 0:04:03]} 28. Qxd2 {[%emt 0:00:03]} Qe5 {[%emt 0:01:12]} 29. Qd8+ {[%emt 0:01:21]} (29. Kg2 $11 {remains equal.}) 29... Kg7 {[%emt 0:00:06]} 30. Nc8 {[%emt 0:00:43] [#]} (30. Kg2 $11) 30... Ne4 $1 {[%emt 0:07:40]} 31. Kg2 {[%emt 0:04:06] [#]} (31. e3 $142) 31... Qc5 $1 {[%emt 0:03:03] Double Attack} 32. e3 {[%emt 0:01:10]} Qxc4 {[%emt 0:03:36]} 33. Qd4+ Qxd4 {[%emt 0:00:06]} 34. exd4 {[%emt 0:09:24]} Kf8 {[%emt 0:06:51]} 35. f3 {[%emt 0:00:09]} Nd2 {[%emt 0:00:11]} 36. Nd6 {[%emt 0:00:04]} Nb3 {[%emt 0:00:07]} 37. Nxb7 {[%emt 0:00:03]} Ke7 {[%emt 0:02:10]} 38. Kf2 {[%emt 0:00:49]} Kd7 {[%emt 0:07:27]} ({Not} 38... Nxd4 39. Ke3 $17) 39. Ke3 {[%emt 0:00:40] [#]} Kc7 $15 {[%emt 0:00:07]} ({Black should play} 39... f6 $1 $19 40. Kd3 Kc6) 40. Nc5 {[%emt 0:00:10]} Nxc5 {[%emt 0:00:32]} 41. dxc5 {[%emt 0:00:03]} Kc6 {[%emt 0:00:11]} 42. Kd4 {[%emt 0:00:14]} f6 {[%emt 0:00:25]} 43. h4 {[%emt 0:11:33]} e5+ {[%emt 0:00:19]} 44. Kc4 {[%emt 0:00:13]} f5 {[%emt 0:00:13]} 45. f4 {[%emt 0:01:12]} e4 {[%emt 0:01:01]} 46. Kd4 {[%emt 0:00:04]} e3 {[%emt 0:03:14]} 47. Kxe3 {[%emt 0:00:05]} Kxc5 {[%emt 0:00:03]} 48. h5 {[%emt 0:00:10]} gxh5 {[%emt 0:00:48]} 49. Kd3 {[%emt 0:00:05]} Kd5 {[%emt 0:00:07]} 0-1

[Event "Norm Congress-IM 2019"]
[Site "Saint Louis"]
[Date "2019.05.17"]
[Round "2.2"]
[White "Wu, Rochelle"]
[Black "Rosen, Eric"]
[Result "1/2-1/2"]
[ECO "A50"]
[WhiteElo "2174"]
[BlackElo "2338"]
[Annotator "RC"]
[PlyCount "170"]
[EventDate "2019.05.16"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. d4 {[%emt 0:00:00]} Nf6 {[%emt 0:00:00]} 2. c4 {[%emt 0:00:00]} Nc6 {[%emt 0:00:01]} 3. Nc3 {[%emt 0:04:32]} e5 {[%emt 0:00:35]} 4. d5 {[%emt 0:04:10]} Ne7 {[%emt 0:00:06]} 5. g3 {[%emt 0:01:12]} Ng6 {[%emt 0:01:02]} 6. Bg2 {[%emt 0:01:52]} Bb4 {[%emt 0:00:15]} 7. Bd2 {[%emt 0:03:07]} a5 {[%emt 0:01:30]} 8. e4 {[%emt 0:04:24]} d6 {[%emt 0:00:59]} 9. Nge2 {[%emt 0:01:18]} Bg4 {[%emt 0:10:41]} 10. h3 {[%emt 0:03:19]} Bd7 {[%emt 0:00:35]} 11. Qc2 {[%emt 0:00:43]} Qc8 {[%emt 0:01:31]} 12. O-O-O {[%emt 0:02:45]} c6 {[%emt 0:03:21]} 13. Bg5 {[%emt 0:21:10]} Qc7 {[%emt 0:02:47]} 14. Kb1 {[%emt 0:07:02]} Ne7 {[%emt 0:07:08]} 15. Bxf6 {[%emt 0:03:47]} gxf6 {[%emt 0:00:22]} 16. a3 {[%emt 0:00:31]} Bc5 {[%emt 0:01:12]} 17. f4 {[%emt 0:02:54]} cxd5 {[%emt 0:06:13]} 18. exd5 {[%emt 0:00:06]} Nf5 {[%emt 0:01:18]} 19. Qd3 {[%emt 0:06:05]} Ne3 {[%emt 0:01:52]} 20. Rdg1 {[%emt 0:00:54]} f5 {[%emt 0:03:20]} 21. fxe5 {[%emt 0:03:44]} dxe5 {[%emt 0:00:38]} 22. Nd1 {[%emt 0:02:13]} Nxg2 {[%emt 0:08:45]} 23. Rxg2 {[%emt 0:01:56]} Rc8 {[%emt 0:00:14]} 24. Re1 {[%emt 0:01:04]} O-O {[%emt 0:02:53]} 25. g4 {[%emt 0:04:11]} f4 {[%emt 0:01:02]} 26. Ndc3 {[%emt 0:00:51]} Kh8 {[%emt 0:02:13]} 27. Ne4 {[%emt 0:01:47]} f6 {[%emt 0:10:00]} 28. d6 {[%emt 0:04:40]} Qc6 {[%emt 0:01:22]} 29. Nxf4 {[%emt 0:01:53]} exf4 {[%emt 0:02:05]} 30. Nxc5 {[%emt 0:00:51]} Be8 {[%emt 0:04:01]} 31. Ne4 {[%emt 0:09:07]} Bg6 {[%emt 0:00:38]} 32. b3 {[%emt 0:02:55]} Rcd8 {[%emt 0:09:41]} 33. Kb2 {[%emt 0:00:39]} f3 {[%emt 0:03:23]} 34. Qxf3 {[%emt 0:00:37]} Rxd6 {[%emt 0:00:02]} 35. Rge2 {[%emt 0:00:18]} Re6 {[%emt 0:01:43]} 36. Nd2 {[%emt 0:00:14]} Rxe2 {[%emt 0:00:33]} 37. Rxe2 {[%emt 0:00:05]} Qb6 {[%emt 0:01:20]} 38. Qc3 {[%emt 0:00:11]} Qg1 {[%emt 0:02:41]} 39. Re6 {[%emt 0:01:32]} Kg8 {[%emt 0:01:37]} 40. Rd6 {[%emt 0:00:46]} Qd1 {[%emt 0:04:22]} 41. Qc1 {[%emt 0:00:29]} Qe2 {[%emt 0:00:12]} 42. Qc3 {[%emt 0:00:14]} a4 {[%emt 0:01:24]} 43. bxa4 {[%emt 0:00:15]} Qd1 {[%emt 0:00:22]} 44. c5 {[%emt 0:00:19]} Qh1 {[%emt 0:02:41]} 45. a5 {[%emt 0:00:27]} Re8 {[%emt 0:01:10]} 46. g5 {[%emt 0:00:31]} fxg5 {[%emt 0:02:00]} 47. Rd7 {[%emt 0:00:05]} Bf7 {[%emt 0:00:05]} 48. Qf6 {[%emt 0:00:16]} Rf8 {[%emt 0:00:16]} 49. Qxg5+ {[%emt 0:00:05]} Kh8 {[%emt 0:00:49]} 50. Qe5+ {[%emt 0:00:59]} Kg8 {[%emt 0:00:03]} 51. Ne4 {[%emt 0:00:24]} Qg2+ {[%emt 0:01:28]} 52. Rd2 {[%emt 0:00:06]} Qg7 {[%emt 0:00:08]} 53. Qxg7+ {[%emt 0:01:44]} Kxg7 {[%emt 0:00:01]} 54. Rf2 {[%emt 0:00:28]} Ra8 {[%emt 0:00:33]} 55. Nd6 {[%emt 0:00:07]} Bd5 {[%emt 0:00:16]} 56. Rd2 {[%emt 0:00:25]} Bc6 {[%emt 0:00:22]} 57. Nxb7 {[%emt 0:00:43]} Ra7 {[%emt 0:02:04]} 58. Nd8 {[%emt 0:00:31]} Be4 {[%emt 0:00:03]} 59. c6 {[%emt 0:00:32]} Kf6 {[%emt 0:00:23]} 60. Nb7 {[%emt 0:01:04]} Bxc6 {[%emt 0:00:56]} 61. Rd6+ {[%emt 0:00:04]} Ke5 {[%emt 0:00:03]} 62. Rxc6 {[%emt 0:00:07]} Rxb7+ {[%emt 0:00:07]} 63. Rb6 {[%emt 0:00:04]} Ra7 {[%emt 0:01:23]} 64. a6 {[%emt 0:00:13]} Kd4 {[%emt 0:00:37]} 65. Kb3 {[%emt 0:00:24]} Kc5 {[%emt 0:00:27]} 66. Rb7 {[%emt 0:00:14]} Rxa6 {[%emt 0:00:17]} 67. Rxh7 {[%emt 0:00:04]} Rf6 {[%emt 0:00:25]} 68. Rh5+ {[%emt 0:00:16]} Kc6 {[%emt 0:00:13]} 69. Kb4 {[%emt 0:00:30]} Rf1 {[%emt 0:00:49]} 70. Rh6+ {[%emt 0:01:07]} Kc7 {[%emt 0:00:14]} 71. a4 {[%emt 0:00:22]} Rf4+ {[%emt 0:00:27]} 72. Kb5 {[%emt 0:00:06]} Kb7 {[%emt 0:01:01]} 73. Rh5 {[%emt 0:00:20]} Rf1 {[%emt 0:00:13]} 74. a5 {[%emt 0:00:40]} Rc1 {[%emt 0:00:23]} 75. Rh7+ {[%emt 0:00:32]} Kb8 {[%emt 0:00:22]} 76. a6 {[%emt 0:00:35]} Rb1+ {[%emt 0:01:06]} 77. Kc6 {[%emt 0:00:05]} Ra1 {[%emt 0:00:19]} 78. a7+ {[%emt 0:01:04]} Ka8 {[%emt 0:00:03]} 79. h4 {[%emt 0:00:21]} Ra6+ {[%emt 0:00:34]} 80. Kd5 {[%emt 0:00:36]} Rd6+ {[%emt 0:00:10]} 81. Ke5 {[%emt 0:00:09]} Re6+ {[%emt 0:00:13]} 82. Kf5 {[%emt 0:00:18]} Rf6+ {[%emt 0:00:02]} 83. Kg5 {[%emt 0:00:11]} Rg6+ {[%emt 0:00:03]} 84. Kh5 {[%emt 0:00:18]} Rg5+ {[%emt 0:00:05]} 85. Kh6 {[%emt 0:00:05]} Rg6+ {[%emt 0:00:09]} 1/2-1/2

[Event "Norm Congress-IM 2019"]
[Site "Saint Louis"]
[Date "2019.05.17"]
[Round "2.3"]
[White "Gauri, Shankar"]
[Black "Chiku-Ratte, Olivier-Kenta"]
[Result "1/2-1/2"]
[ECO "A81"]
[WhiteElo "2375"]
[BlackElo "2378"]
[Annotator "TA"]
[PlyCount "171"]
[EventDate "2019.05.16"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,170,68,65,87,87,112,109,132,114,90,66,92,44,52,60,67,61,70,70,54,45,167,157,163,97,98,101,90,89,95,95,83,83,36,47,61,66,56,49,135,127,127,124,123,135,185,189,223,157,164,158,158,144,153,167,223,183,215,201,247,263,283,259,343,317,403,389,382,326,468,473,504,460,435,429,415,279,286,264,401,391,454,77,73,8,8,8,8,15,15,8,49,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,0,8,8,8,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 f5 2. g3 Nf6 3. Bg2 g6 4. Nh3 Bg7 5. Nf4 O-O 6. h4 Qe8 {A81: Dutch Defence: 2 g3} (6... Nc6 7. c3 Qe8 8. Nd2 e5 9. dxe5 Nxe5 10. Nf3 Nxf3+ 11. Bxf3 c6 12. Be3 d5 13. Bd4 Bh6 14. Qc2 Qf7 {½-½ (30) Barsov,A (2503)-Kuzubov,Y (2627) Tashkent 2011}) 7. h5 g5 8. h6 Bh8 {White is better.} 9. Nh3 g4 10. Nf4 e6 $146 ({Predecessor:} 10... Qf7 11. Nc3 d6 12. e4 Nc6 13. Be3 e5 14. dxe5 dxe5 {½-½ (38) Olsson,L (2366)-Ivarsson,S (2280) Sweden 2004}) 11. c4 d6 12. Nc3 c6 13. Nd3 e5 14. dxe5 dxe5 15. e4 Qe6 ({Black should try} 15... Na6 $14) 16. Qd2 Rd8 17. Nc5 ({White should play} 17. b3 $18) 17... Qe7 $16 18. Qg5+ Kf7 19. Nb3 Na6 20. O-O Nb4 21. exf5 {aiming for Be3.} Rg8 22. Qh4 Nc2 23. Rb1 {[#] Bg5 is the strong threat.} Nd4 24. Re1 {Strongly threatening Nxd4.} Nxb3 (24... Nxf5 $14 25. Qh1 Rg6) 25. axb3 Bxf5 26. Ra1 $36 {[%mdl 2048] Black is under strong pressure.} Qe6 27. Be3 Bg6 28. Bxa7 e4 29. Qh1 {[%cal Rc3e4]} Rge8 30. Bd4 Rxa1 31. Rxa1 Qd6 32. Rd1 Rd8 (32... e3 $142 33. Bxe3 Qb4) 33. Kh2 {[#] And now Bb6 would win.} Qe6 34. Qe1 Re8 35. Qe3 Qf5 36. Kg1 Re7 37. Ra1 Re8 38. Ra7 Qc8 39. Na4 Re7 (39... Kg8 $142 40. Nc3 Qc7) 40. Nb6 $18 Qc7 41. Ra8 Re8 42. Rxe8 Kxe8 43. Bxf6 Bxf6 44. Bxe4 Kf7 (44... Qe5 {keeps fighting.}) 45. c5 Qe5 46. Bxg6+ $2 (46. Nc4 $18 Qd4 47. Nd6+ Ke7 48. Qe1 Qxc5 49. Nxb7) 46... Kxg6 $16 47. Qxe5 (47. Qd3+ $16 Qf5 48. Qe3) 47... Bxe5 $18 {[%mdl 4096] Endgame KB-KN} 48. Nc4 Bd4 49. b4 Kxh6 50. b3 {[%cal Bb2b3,Bb3b4][%mdl 32]} Bc3 51. Na5 (51. b5 $5) 51... Bxb4 {The position is equal.} 52. Nxb7 Kg6 53. Nd8 Bxc5 54. Nxc6 Kf6 55. b4 Bb6 56. Kf1 h5 57. Ke2 Kg5 58. Ne5 h4 59. gxh4+ Kxh4 60. Nd7 Ba7 61. b5 Kh3 62. Nf6 (62. Ne5 {seems wilder.} g3 63. fxg3 Kxg3 64. Nd7 Kg2 65. b6) 62... g3 63. fxg3 Kxg3 64. Kd3 Kf4 65. Nd7 Kf5 66. Kc4 Ke6 67. Nc5+ Kd6 68. Na4 Bf2 69. Nb2 Kc7 70. Nd3 Be3 71. Nb4 {White wants to mate with Nd5+.} Kb7 72. Nc6 Kb6 (72... Ba7 $5) 73. Kb4 Bd2+ 74. Ka4 Be1 75. Ne5 Kb7 76. Nd3 Bd2 77. Kb3 Be3 78. Kc4 Bg1 79. Kb4 Be3 80. Nc5+ Bxc5+ 81. Kxc5 $11 {KP-K} Kc7 82. b6+ Kb7 83. Kb5 Kb8 84. Kc6 Kc8 85. b7+ Kb8 86. Kb6 {Accuracy: White = 64%, Black = 61%.} 1/2-1/2

[Event "Norm Congress-IM 2019"]
[Site "Saint Louis"]
[Date "2019.05.17"]
[Round "2.4"]
[White "Ezra Paul Chambers"]
[Black "Giannatos, Peter"]
[Result "0-1"]
[ECO "C10"]
[WhiteElo "2241"]
[BlackElo "2290"]
[Annotator "TA"]
[PlyCount "58"]
[EventDate "2019.05.16"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,68,-9,-20,0,-14,0,0,0,0,0,0,8,13,19,0,12,-18,-20,-30,-4,-172,-176,-192,-199,-436,-213,-248,-168,-341,-327,-540,-368,-535,-341,-435,-413,-498,-497,-497,-499,-524,-513,-499,-404,-407,-396,-483,-475,-541,-533,-529,-529,-630,-518]} 1. e4 e6 2. d4 d5 3. Nc3 Nc6 4. Nf3 Nf6 5. Bg5 Be7 6. e5 Ne4 7. Bxe7 Qxe7 8. Bd3 Nxc3 9. bxc3 Na5 {C10: French with 3 Nc3: Unusual Black 3rd moves and 3...dxe4} (9... f6 10. Qe2 O-O 11. exf6 Rxf6 12. O-O Bd7 13. c4 dxc4 14. Bxc4 Raf8 15. c3 Kh8 16. Bd3 Rh6 17. Rae1 {1-0 (44) Tryggestad,A (2305)-Rozentalis,E (2568) Fagernes 2019}) 10. O-O Bd7 11. Nd2 c5 {The position is equal.} 12. Nb3 b6 $146 ({Predecessor:} 12... Nxb3 13. axb3 O-O 14. Qh5 g6 15. Qe2 a5 16. Qe3 Rfc8 17. Rfb1 {½-½ (51) Pulkkinen,K (2240)-Kekki,P (2285) Espoo 1992}) 13. Nxa5 bxa5 14. c4 dxc4 15. Bxc4 O-O 16. Rb1 Bc6 17. Bb5 Bd5 18. Rb2 $2 (18. c4 $11 {and White has nothing to worry.} Be4 19. Rb2) 18... Rab8 $19 19. Qd2 {[#]} c4 $1 {aiming for ...a6!} 20. Rfb1 $2 (20. Rbb1) 20... Rb6 (20... Qa3 $142 {White must now prevent ...c3.} 21. c3 Be4) 21. c3 Qb7 {...Be4 is the strong threat.} 22. f3 $2 (22. Ba4 Bxg2 23. Bc2) 22... Rb8 23. Qg5 $2 (23. Qc1) 23... h6 24. Qh4 (24. Qc1 $142) 24... Kh7 25. a4 a6 26. Qe1 axb5 27. Rxb5 Qc7 (27... Rxb5 $2 {is the wrong capture.} 28. Rxb5 Qc7 29. Qb1+ Be4 30. Qxe4+ (30. fxe4 Rxb5 31. Qxb5 Qd8 $16) 30... g6 31. g3 $18) 28. R1b2 Rxb5 29. axb5 a4 {Played: Qc7-b6} 0-1

[Event "Norm Congress-IM 2019"]
[Site "Saint Louis"]
[Date "2019.05.17"]
[Round "2.5"]
[White "Torres Rosas, Luis Carlos"]
[Black "Grabinsky, Aaron"]
[Result "1-0"]
[ECO "E00"]
[WhiteElo "2320"]
[BlackElo "2338"]
[Annotator "TA"]
[PlyCount "45"]
[EventDate "2019.05.16"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,83,43,43,43,48,39,44,39,43,30,41,45,47,43,36,6,9,7,9,-8,-20,-12,2,1,10,0,47,53,94,120,254,256,255,235,209,242,777,774,768,738,762,746,683,526,527,484,1480,411,386,399,402,395,388,387,435,435,435,435,550,435,435,435,434,417,435,429,457,442,581,579,572,566,520,452,551,551]} 1. d4 e6 2. c4 Bb4+ 3. Bd2 Qe7 4. e4 Bxd2+ (4... Nf6 5. Bxb4 Qxb4+ 6. Qd2 Qxd2+ 7. Nxd2 d6 8. f4 c5 9. dxc5 dxc5 10. e5 Ng4 11. Bd3 Nc6 12. h3 {1-0 (42) Karpov,A (2616)-Bauer,C (2664) Cap d'Agde 2012}) 5. Qxd2 d6 6. Nc3 {A40: Unusual replies to 1 d4} Nf6 7. Bd3 e5 8. Nge2 {White is slightly better.} Nc6 9. d5 Nb4 $146 ({Predecessor:} 9... Nd4 10. Nxd4 exd4 11. Nb5 a6 12. Nxd4 Nxe4 {½-½ (34) From,S-Hansen,J Denmark 1983}) 10. Bb1 a5 11. a3 Na6 12. b4 O-O 13. O-O Bd7 14. Nb5 Rfd8 15. Rd1 c6 16. dxc6 Bxc6 17. Ng3 {[%cal Rb5d6]} ({But not} 17. bxa5 Nc5 $15) 17... axb4 18. axb4 {[%cal Rb5d6]} d5 19. exd5 Bxb5 (19... Nxd5 $16 {keeps fighting.} 20. cxd5 Rxd5) 20. d6 $18 ({Weaker is} 20. cxb5 Rxd5 21. Bd3 Nc7 $11) 20... Qe8 21. cxb5 Qxb5 {[#]} 22. Nf5 $1 {Strongly threatening Qg5!} Nh5 $2 (22... h6 23. Nxh6+ Kf8) 23. Nh6+ {Played: Qd2-g5} 1-0

[Event "Norm Congress-IM 2019"]
[Site "Saint Louis"]
[Date "2019.05.17"]
[Round "3.1"]
[White "Grabinsky, Aaron"]
[Black "Kiewra, Keaton"]
[Result "1/2-1/2"]
[ECO "A01"]
[WhiteElo "2338"]
[BlackElo "2375"]
[Annotator "TA"]
[PlyCount "135"]
[EventDate "2019.05.16"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,135,-21,0,6,8,15,21,-3,31,35,34,25,41,41,51,27,51,55,51,32,48,55,41,26,22,14,28,26,81,32,27,14,31,29,54,12,10,6,31,0,35,31,44,-8,24,0,25,0,0,-26,0,0,0,-58,-49,-67,-67,-35,-7,-8,0,0,0,0,0,0,0,0,0,0,0,0,48,58,53,64,111,112,108,91,89,83,123,132,131,120,311,304,304,304,304,205,152,121,128,136,133,133,128,123,121,120,139,139,104,112,120,91,88,8,8,8,8,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0]} 1. b3 Nf6 2. Bb2 g6 3. Bxf6 exf6 4. c4 Bg7 5. Nc3 f5 6. g3 {A01: Nimzowitsch-Larsen Opening} (6. Rc1 c5 7. g3 O-O 8. Bg2 Nc6 9. Nh3 g5 10. f4 h6 11. O-O d6 12. fxg5 hxg5 {1-0 (40) Rapport,R (2709)-Naiditsch,A (2711) Jurmala 2015}) 6... h5 7. h4 Nc6 {[%cal Bb8c6,Bc6e5,Be5g4][%mdl 32]} 8. e3 Ne5 $146 ({Predecessor:} 8... b6 9. d4 Bb7 10. Bg2 O-O 11. Nh3 Na5 12. Nd5 c6 {1-0 (40) Avalos,J (1661)-Alvarez,L (2111) Laguna Paiva 2018}) 9. d4 Ng4 10. Bg2 a6 11. Nge2 Rb8 12. c5 b6 13. cxb6 Rxb6 14. Rc1 Bb7 15. Bxb7 Rxb7 16. Nf4 O-O 17. O-O Bh6 18. Qf3 Qa8 (18... Qb8 $11) 19. Nd3 Ra7 20. Nd5 Qd8 21. Rc4 a5 22. Nc3 c6 23. d5 Re8 {[%cal Rg4e3]} 24. Re1 (24. e4 {with more complications.} Rxe4 25. Rxe4 fxe4 26. Nxe4 a4 27. b4) 24... Kh7 25. Re2 (25. dxc6 dxc6 26. e4 (26. Qxc6 Rd7 $17) 26... Rd7 $15) 25... Bg7 26. Na4 (26. dxc6 $2 dxc6 27. Rd4 Bxd4 $19) (26. Rc2 $14) 26... Nf6 27. Nc3 a4 28. bxa4 Ng4 29. Rc2 (29. dxc6 $2 dxc6 30. e4 Rd7 $19) 29... Qb8 30. Kg2 Qd6 31. e4 (31. Qf4 $11 Qxf4 32. exf4 (32. Nxf4 Rxe3 33. dxc6 dxc6 $11)) 31... Bxc3 $15 32. R2xc3 {[%cal Rd5c6]} cxd5 33. exd5 Ra5 34. Rd4 Rea8 35. Rcc4 Qa3 36. Ne5 $36 {[%mdl 2048] White has some pressure.} Qxf3+ 37. Nxf3 Kg7 38. Rb4 d6 39. Nd2 Nf6 40. Nb3 R5a7 41. a5 Nd7 42. Rb5 Kf6 43. Rdb4 Nc5 44. Nxc5 dxc5 $16 {[%mdl 4096] Endgame KRR-KRR} 45. Ra4 $1 c4 46. Kf3 ({But not} 46. Rxc4 $6 Rxa5 47. Rb6+ Kg7 $11) 46... Rc8 47. Ke2 $1 c3 $2 (47... Ke5 $16 {keeps fighting.}) 48. Kd1 $18 Re7 {( -> ...c2+)} 49. Rb6+ Ke5 50. Rc6 Rd8 51. a6 ({Don't play} 51. Rxc3 $6 Rxd5+ 52. Kc2 Ra7 $14) 51... Kxd5 52. Rxc3 Ra8 53. Ra5+ Kd6 54. Kd2 Rea7 55. Rca3 Rc8 {[#]} 56. Rd3+ $1 Ke6 57. Rc3 Rd8+ {[#]} 58. Kc2 $1 Rd6 59. a4 ({White should try} 59. Re3+ $16 Kf6 60. Rea3) 59... Rdxa6 $11 {The position is equal.} 60. Rxa6+ Rxa6 {KR-KR} 61. Ra3 f4 62. a5 f6 63. Kc3 Kf5 64. Kc4 {aiming for Kb5.} Kg4 65. Kb5 Ra8 66. a6 {Kb6 is the strong threat.} g5 $1 67. hxg5 fxg5 68. Kb6 {Accuracy: White = 63%, Black = 43%.} 1/2-1/2

[Event "Norm Congress-IM 2019"]
[Site "Saint Louis"]
[Date "2019.05.17"]
[Round "3.2"]
[White "Giannatos, Peter"]
[Black "Torres Rosas, Luis Carlos"]
[Result "0-1"]
[ECO "A05"]
[WhiteElo "2290"]
[BlackElo "2320"]
[Annotator "TA"]
[PlyCount "84"]
[EventDate "2019.05.16"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 22,84,-40,-56,-39,-56,-39,-58,-60,-66,-65,-70,-46,-77,-67,-77,-66,-98,-81,-92,-85,-83,-33,-27,-36,-33,-46,-28,-22,-33,-26,-111,-93,-92,-90,-77,-92,-72,-66,-81,-25,-19,-31,-35,-20,-19,-8,-18,-18,-18,-18,-18,-18,-8,-8,-8,-17,-113,-106,-168,-180,-258,-261,-29998,-29999]} 1. Nf3 Nf6 2. g3 e6 3. Bg2 d5 4. O-O Be7 5. d3 c5 6. Nbd2 Nc6 7. e4 Qc7 8. Re1 O-O 9. Qe2 b5 10. e5 Nd7 11. Nf1 Bb7 12. h4 Rfc8 {C00: French: Unusual White 2nd moves} 13. Bg5 (13. Bd2 b4 14. N1h2 Qd8 15. Bg5 h6 16. Bxe7 Nxe7 17. Qd2 a5 18. h5 c4 19. Nd4 Nc6 20. Nhf3 Nxd4 21. Nxd4 cxd3 22. cxd3 {1-0 (63) Nepomniachtchi,I (2751)-Dominguez Perez,L (2739) Saint Louis 2017}) 13... Bf8 14. N1h2 $146 ({Predecessor:} 14. c3 a5 15. N1h2 a4 16. a3 d4 17. Bf4 dxc3 18. bxc3 Nb6 19. Ng4 Nd5 20. Bd2 {1-0 (36) Gvetadze,S (2325)-Di Benedetto,D (2321) Batumi 2018}) 14... a5 {[%cal Ba7a5,Ba5a4][%mdl 32] Black is slightly better.} 15. Ng4 h6 16. Bf4 Qd8 17. h5 a4 18. a3 b4 19. c3 bxc3 20. bxc3 Ba6 21. Nh4 Ne7 22. c4 {[#] Strongly threatening cxd5.} Bb7 23. Ne3 {And now cxd5 would win.} Nb6 24. Rab1 Bc6 25. Ng4 Nd7 26. Bh3 (26. Ne3 $11 {keeps the balance.} d4 27. Bxc6 Rxc6 28. Ng4) 26... Rab8 27. Qc2 Rxb1 28. Rxb1 Rb8 29. Bg2 Rxb1+ 30. Qxb1 Qb6 (30... Qa5 $17 31. cxd5 Nxd5) 31. Qxb6 $1 $11 Nxb6 32. Bf1 $1 dxc4 33. dxc4 Be4 34. f3 Bb1 {Black wants to play ...Ba2.} 35. Bd2 $1 Nc6 $36 {[%mdl 2048] ...Ba2 is the strong threat. Black fights for an advantage.} 36. f4 Nd4 37. Ba5 Nd7 38. Ne3 f6 39. exf6 (39. Bc7 $11 {remains equal.}) 39... Nxf6 $17 ({Much weaker is} 39... gxf6 $6 40. Bc7 $15) 40. g4 (40. Kf2 $17) 40... Bd6 $19 41. Nhg2 {[#]} (41. Ng6 {is a better defense.}) 41... Ne4 $1 {( -> ...Nf3+)} 42. Nd1 $2 (42. Kh2 $19) 42... Nf3+ 0-1

[Event "Norm Congress-IM 2019"]
[Site "Saint Louis"]
[Date "2019.05.17"]
[Round "3.3"]
[White "Chiku-Ratte, Olivier-Kenta"]
[Black "Ezra Paul Chambers"]
[Result "0-1"]
[ECO "A67"]
[WhiteElo "2378"]
[BlackElo "2241"]
[Annotator "TA"]
[PlyCount "98"]
[EventDate "2019.05.16"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 22,98,17,22,10,27,10,24,27,23,18,8,28,37,33,33,20,19,27,0,0,0,0,0,0,2,9,0,0,0,0,0,0,0,81,79,71,-23,-29,-20,-45,-114,-122,-569,-563,-564,-562,-555,-539,-559,-534,-496,-495,-488,-487,-430,-395,-528,-522,-531,0,-587,-532,-29995,-29996,-29996,-29997,-29997,-29995,-29995,-29993,-29993,-29994,-29994,-29995,-29996,-29994,-29994,-29995]} 1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 g6 7. f4 Bg7 8. Bb5+ Nfd7 9. Nf3 O-O 10. O-O a6 11. Bd3 b5 12. Kh1 Nb6 {A67: Modern Benoni: Taimanov Variation} (12... Bb7 13. f5 c4 14. Bc2 Re8 15. Ng5 Ne5 16. fxg6 hxg6 17. Qe1 Nbd7 18. Qh4 Nf8 19. Bf4 f6 20. Ne6 Nxe6 21. dxe6 {0-1 (45) Fier,A (2573)-Antipov,M (2582) Bastia 2017}) 13. f5 N8d7 14. Bg5 Bf6 {White has an edge.} 15. Bf4 Qe7 16. Qd2 Ne5 $146 ({Predecessor:} 16... Bb7 17. Rae1 Rac8 18. Nd1 Rfe8 19. Qf2 b4 20. Ne3 {½-½ (39) Glek,I-Anikaev,Y (2460) Minsk 1983}) 17. Nxe5 Bxe5 18. Bxe5 Qxe5 19. Rf3 Ra7 20. f6 Kh8 21. Raf1 Rg8 22. Qh6 Rc7 23. g4 {White wants to mate with Rh3.} Nd7 $1 24. g5 {Threatening mate with Qxh7+!} Nf8 $1 25. Rf4 c4 26. Bc2 b4 27. Nd1 Bd7 (27... a5 $11 {remains equal.}) 28. Rh4 $16 b3 29. axb3 ({White should play} 29. Bb1 $1 $16) 29... cxb3 $11 30. Bxb3 {And now Rff4 would win.} Bb5 $1 {[%cal Rb5f1]} 31. Rff4 {[#]} (31. Re1 $15) 31... Be2 $1 $40 {[%mdl 128] White must now prevent ...Qd4. Black is out for blood.} 32. Nc3 $2 {[%mdl 8192]} (32. Rf2 $17 Bh5 33. Rd2) 32... Rxc3 $1 $19 33. bxc3 Qxc3 34. Ba4 {Kg2 is the strong threat.} Qa1+ 35. Kg2 Qxa4 36. e5 Qa2 37. e6 fxe6 38. dxe6 {aiming for f7.} Bh5+ 39. Kg3 Qxe6 40. Re4 Qd5 $2 (40... Qb3+ $19 41. Kf2 Qb2+ 42. Ke1 Qc1+ 43. Kf2 Qc5+ 44. Kf1 {[#]} Ne6 $1 {[%mdl 576] Decoy} 45. Rxe6 Qf5+ {[%mdl 64] Double Attack} 46. Kg1 Qxe6) 41. Re3 $2 {[%mdl 8192]} (41. Rhf4 $1 $11 {and White stays safe.} Qb3+ 42. Kh4) 41... Qd1 {( -> ...Qg1+)} 42. Kf4 Qd4+ {Black mates.} 43. Kg3 Qxe3+ 44. Kg2 Qe2+ 45. Kg1 Qe1+ 46. Kg2 Qxh4 47. f7 Rg7 48. h3 {[#]} Bf3+ $1 {[%mdl 64] Decoy} 49. Kxf3 Rxf7+ {Accuracy: White = 45%, Black = 75%.} 0-1

[Event "Norm Congress-IM 2019"]
[Site "Saint Louis"]
[Date "2019.05.17"]
[Round "3.4"]
[White "Rosen, Eric"]
[Black "Gauri, Shankar"]
[Result "1/2-1/2"]
[ECO "A45"]
[WhiteElo "2338"]
[BlackElo "2375"]
[Annotator "TA"]
[PlyCount "25"]
[EventDate "2019.05.16"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,14,-8,-7,-13,-8,0,-5]} 1. d4 Nf6 2. Bf4 c5 3. e3 d5 4. c3 Nc6 5. Nd2 Bf5 {The position is equal.} (5... Qb6 6. Qb3 Nh5 7. Qxb6 axb6 8. Bc7 cxd4 9. exd4 e5 10. Bxe5 Nxe5 11. dxe5 Bc5 12. g3 O-O {1-0 (76) Aronian,L (2765)-Caruana,F (2832) London 2018}) 6. Qb3 {D00: 1 d4 d5: Unusual lines} Qd7 7. Ngf3 c4 {Predecessor:} 8. Qd1 $146 e6 9. Be2 h6 10. Ne5 Nxe5 11. Bxe5 Be7 12. b3 cxb3 13. axb3 {½-½ (26) Nisipeanu,L (2682)-Ragger,M (2666) Graz 2018} 1/2-1/2

[Event "Norm Congress-IM 2019"]
[Site "Saint Louis"]
[Date "2019.05.17"]
[Round "3.5"]
[White "Jacobson, Aaron"]
[Black "Wu, Rochelle"]
[Result "1/2-1/2"]
[ECO "B92"]
[WhiteElo "2311"]
[BlackElo "2174"]
[Annotator "TA"]
[PlyCount "77"]
[EventDate "2019.05.16"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,77,1,5,1,2,6,4,39,32,35,35,33,21,51,44,61,62,68,49,60,49,77,72,68,60,67,29,89,86,103,76,73,62,54,53,58,53,54,57,73,66,66,60,66,0,0,0,9,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e5 7. Nf3 Be7 8. Bg5 Be6 {B92: Sicilian Najdorf: 6 Be2} 9. Bxf6 Bxf6 10. Qd2 (10. O-O O-O 11. Qd2 Be7 12. Nd5 Nd7 13. Nxe7+ Qxe7 14. Rfd1 Rac8 15. c3 Rc6 16. Ng5 Nf6 17. Nxe6 fxe6 18. Qe3 Qc7 {½-½ (45) Harikrishna,P (2730)-Shankland,S (2731) Prague 2019}) 10... Nc6 11. Nd5 Bxd5 12. Qxd5 Qb6 13. Qb3 $146 ({Predecessor:} 13. Rb1 Ne7 14. Qb3 Qxb3 15. axb3 d5 16. O-O {½-½ (58) Zontakh,A (2507)-Gomes,M (2302) St Petersburg 2018}) 13... Qxb3 14. axb3 Nd4 15. Nxd4 exd4 16. Ra2 Ke7 17. Bd3 g5 18. Ke2 h5 19. Rha1 Be5 20. b4 Rac8 (20... Bxh2 $11 {keeps the balance.} 21. b5 h4) 21. Ra5 $16 g4 22. b5 Bxh2 23. bxa6 bxa6 24. g3 {[#] Rh1 is the strong threat.} h4 25. gxh4 Rxh4 26. Rxa6 g3 27. fxg3 Bxg3 28. Ra7+ Ke6 29. b3 ({Better is} 29. Rf1 $14) 29... Rh2+ $1 $11 {The position is equal.} 30. Kf3 Be5 31. Bc4+ Rxc4 $1 32. bxc4 Rxc2 {[%mdl 4096] Endgame KRR-KRB} 33. Rc7 Rc3+ 34. Kf2 Rc2+ 35. Kf3 Rc3+ 36. Kf2 Rc2+ 37. Kf1 f5 38. exf5+ Kxf5 39. Re1 {Accuracy: White = 59%, Black = 51%.} 1/2-1/2

[Event "Norm Congress-IM 2019"]
[Site "Saint Louis"]
[Date "2019.05.18"]
[Round "4.1"]
[White "Kiewra, Keaton"]
[Black "Wu, Rochelle"]
[Result "1-0"]
[ECO "A45"]
[WhiteElo "2375"]
[BlackElo "2174"]
[Annotator "TA"]
[PlyCount "115"]
[EventDate "2019.05.16"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,115,0,0,0,0,-3,36,31,29,0,15,12,16,0,0,5,4,-21,-13,-16,22,0,0,0,0,0,37,-6,0,0,0,-13,0,0,62,55,88,89,114,103,207,122,116,114,116,126,130,118,221,197,278,275,481,481,621,604,606,588,563,401,402,337,333,331,293,242,318,284,283,229,228,230,283,283,276,283,278,277,376,358,444,331,341,315,340,325,370,372,374,370,402,402,631,573,565,547,760,729,655,573,589,575,956,887,1345,1466,29986,29987]} 1. d4 Nf6 2. Bg5 d5 3. Nd2 c6 4. e3 Bf5 5. Ngf3 Nbd7 6. Be2 {D03: 1 d4 d5 2 Nf3 Nf6 3 Bg5, including Torre Attack with early ...d5} Qb6 7. Qc1 Rc8 $146 ({Predecessor:} 7... e6 8. O-O h6 9. Bh4 Be7 10. Ne5 Nxe5 11. dxe5 Nd7 12. Bg3 {0-1 (41) Parshin,M (1956)-Tihonov,J (2399) Orsha 2019}) 8. O-O {White is slightly better.} c5 9. c3 e6 10. a4 Be7 11. Nh4 Be4 12. f3 Bg6 13. Nxg6 hxg6 14. f4 Ng8 15. Bb5 Qc7 16. Nf3 $36 {[%mdl 2048] White has the initiative.} a6 17. Bd3 Bf6 18. h4 Ne7 19. g4 Nc6 20. Kg2 Qb6 21. Qb1 Ne7 (21... Kf8 $11) 22. a5 $14 Qc7 23. b4 cxb4 24. cxb4 Qc3 (24... Qd6 $16) 25. Rc1 (25. b5 $1 $18) 25... Qxc1 $16 26. Qxc1 Rxc1 27. Rxc1 Kd8 28. b5 Nb8 (28... axb5 $16 29. Bxb5 Nc8) 29. bxa6 bxa6 (29... Nxa6 {keeps fighting.} 30. Ne5 Rf8 31. Bxa6 bxa6) 30. Ne5 $18 Bxe5 $2 (30... Rf8 31. Kg3 Ng8) 31. fxe5 Re8 32. Rf1 Rf8 {[#]} 33. Bxg6 $1 {[%mdl 512]} Ke8 (33... fxg6 34. Rxf8+) 34. Bd3 Nec6 35. Rb1 Kd7 36. h5 Nxa5 37. Bf4 Kc6 38. Rc1+ Nc4 39. Bxc4 dxc4 40. Rxc4+ {[%mdl 4096] Endgame KRB-KRN} Kb5 41. Rc5+ Kb6 42. e4 a5 43. Be3 Na6 44. Rc1 a4 45. g5 Kb5 46. d5 ({Less strong is} 46. h6 gxh6 47. gxh6 a3 $18) 46... a3 47. d6 Nb4 48. Rc5+ ({Much less strong is} 48. h6 a2 $18) 48... Ka4 49. Rc7 a2 {[#] intending ...Nc2!} 50. Bd4 $1 Kb3 (50... Na6 $142 51. Ra7 Kb5) 51. h6 gxh6 52. gxh6 Nc2 53. Bc3 Ne3+ 54. Kf3 Nc4 {[#]} 55. Ba1 $1 {d7 is the strong threat.} f6 56. exf6 e5 57. d7 Rxf6+ 58. Ke2 {Accuracy: White = 72%, Black = 38%.} 1-0

[Event "Norm Congress-IM 2019"]
[Site "Saint Louis"]
[Date "2019.05.18"]
[Round "4.2"]
[White "Gauri, Shankar"]
[Black "Jacobson, Aaron"]
[Result "1/2-1/2"]
[ECO "D02"]
[WhiteElo "2375"]
[BlackElo "2311"]
[Annotator "ChessBase"]
[PlyCount "226"]
[EventDate "2019.05.16"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. d4 {[%emt 0:03:34]} d5 {[%emt 0:00:00]} 2. Nf3 {[%emt 0:03:27]} Nf6 {[%emt 0:00:11]} 3. c4 {[%emt 0:00:07]} e6 {[%emt 0:00:05]} 4. g3 {[%emt 0:00:03]} Bb4+ {[%emt 0:02:00]} 5. Nbd2 {[%emt 0:01:05]} dxc4 {[%emt 0:00:39]} 6. Bg2 {[%emt 0:00:25]} b5 {[%emt 0:08:16]} 7. Ne5 {[%emt 0:01:49]} Nd5 {[%emt 0:01:46]} 8. O-O {[%emt 0:08:15]} Bb7 {[%emt 0:01:28]} 9. Qc2 {[%emt 0:12:32]} Be7 {[%emt 0:21:47]} 10. a3 {[%emt 0:04:48]} a5 {[%emt 0:00:37]} 11. b3 {[%emt 0:15:03]} c3 {[%emt 0:03:49]} 12. Ne4 {[%emt 0:00:06]} b4 {[%emt 0:05:13]} 13. Nc5 {[%emt 0:00:07]} Bxc5 {[%emt 0:01:09]} 14. dxc5 {[%emt 0:00:02]} Nc6 {[%emt 0:09:20]} 15. Nxc6 {[%emt 0:07:05]} Bxc6 {[%emt 0:00:10]} 16. e4 {[%emt 0:09:21]} Nf6 {[%emt 0:01:19]} 17. Bg5 {[%emt 0:04:30]} O-O {[%emt 0:03:39]} 18. Rfd1 {[%emt 0:03:29]} Qe7 {[%emt 0:15:25]} 19. e5 {[%emt 0:06:25]} Bxg2 {[%emt 0:00:08]} 20. Kxg2 {[%emt 0:02:20]} Qxc5 {[%emt 0:00:19]} 21. exf6 {[%emt 0:02:09]} Qxg5 {[%emt 0:01:12]} 22. axb4 {[%emt 0:00:14]} axb4 {[%emt 0:01:20]} 23. Rxa8 {[%emt 0:00:49]} Rxa8 {[%emt 0:00:06]} 24. Qe4 {[%emt 0:00:22]} Rf8 {[%emt 0:02:25]} 25. Qxb4 {[%emt 0:00:46]} Qxf6 {[%emt 0:01:56]} 26. Rc1 {[%emt 0:00:44]} Qf5 {[%emt 0:05:06]} 27. Qxc3 {[%emt 0:00:49]} Rc8 {[%emt 0:01:57]} 28. h4 {[%emt 0:05:51]} c6 {[%emt 0:03:00]} 29. b4 {[%emt 0:00:15]} Qd5+ {[%emt 0:03:32]} 30. Kh2 {[%emt 0:00:01]} Kf8 {[%emt 0:00:24]} 31. Rc2 {[%emt 0:00:23]} h6 {[%emt 0:02:11]} 32. Rd2 {[%emt 0:00:32]} Qf5 {[%emt 0:01:19]} 33. Qd4 {[%emt 0:02:20]} e5 {[%emt 0:01:16]} 34. Qc5+ {[%emt 0:01:17]} Kg8 {[%emt 0:00:04]} 35. Re2 {[%emt 0:00:53]} f6 {[%emt 0:00:45]} 36. Rc2 {[%emt 0:04:30]} Rb8 {[%emt 0:02:20]} 37. Qxc6 {[%emt 0:01:03]} Rxb4 {[%emt 0:00:08]} 38. Qc8+ {[%emt 0:00:28]} Qxc8 {[%emt 0:00:04]} 39. Rxc8+ {[%emt 0:00:02]} Kh7 {[%emt 0:00:36]} 40. Rc7 {[%emt 0:00:49]} h5 {[%emt 0:00:10]} 41. Kg2 {[%emt 0:00:02]} Kg6 {[%emt 0:00:13]} 42. Re7 {[%emt 0:00:12]} Ra4 {[%emt 0:00:28]} 43. Rb7 {[%emt 0:00:03]} Ra6 {[%emt 0:00:39]} 44. Re7 {[%emt 0:00:04]} Rc6 {[%emt 0:00:04]} 45. Kf1 {[%emt 0:00:14]} Rc8 {[%emt 0:01:49]} 46. Kg2 {[%emt 0:00:03]} Rg8 {[%emt 0:00:58]} 47. Ra7 {[%emt 0:01:45]} Kf5 {[%emt 0:00:17]} 48. Rb7 {[%emt 0:00:22]} g6 {[%emt 0:00:46]} 49. Rb6 {[%emt 0:00:04]} Re8 {[%emt 0:00:29]} 50. Rb5 {[%emt 0:00:47]} Ke6 {[%emt 0:00:46]} 51. Rb6+ {[%emt 0:00:02]} Kf7 {[%emt 0:00:08]} 52. Kf3 {[%emt 0:00:19]} Re6 {[%emt 0:00:10]} 53. Rb7+ {[%emt 0:00:07]} Re7 {[%emt 0:00:05]} 54. Rb6 {[%emt 0:00:08]} Rd7 {[%emt 0:01:08]} 55. Ra6 {[%emt 0:00:05]} Ke7 {[%emt 0:00:12]} 56. Rb6 {[%emt 0:00:09]} Rd3+ {[%emt 0:00:13]} 57. Ke2 {[%emt 0:00:33]} Rd6 {[%emt 0:00:28]} 58. Rb7+ {[%emt 0:00:07]} Ke6 {[%emt 0:00:08]} 59. Rb5 {[%emt 0:00:31]} Ra6 {[%emt 0:00:26]} 60. Kf3 {[%emt 0:01:18]} Kd6 {[%emt 0:00:16]} 61. Ke2 {[%emt 0:00:35]} Ke6 {[%emt 0:01:02]} 62. Kf3 {[%emt 0:00:09]} Kf5 {[%emt 0:00:05]} 63. Kg2 {[%emt 0:00:13]} Rd6 {[%emt 0:00:50]} 64. Ra5 {[%emt 0:00:01]} Ke6 {[%emt 0:01:11]} 65. Kf3 {[%emt 0:01:10]} f5 {[%emt 0:00:59]} 66. Ke3 {[%emt 0:00:50]} Rb6 {[%emt 0:00:10]} 67. Kf3 {[%emt 0:00:43]} Kf6 {[%emt 0:00:02]} 68. Kg2 {[%emt 0:00:41]} Re6 {[%emt 0:00:09]} 69. Kf3 {[%emt 0:00:10]} Rc6 {[%emt 0:01:51]} 70. Kg2 {[%emt 0:00:24]} Rb6 {[%emt 0:00:11]} 71. Kf3 {[%emt 0:00:02]} Rd6 {[%emt 0:01:03]} 72. Kg2 {[%emt 0:00:20]} Re6 {[%emt 0:00:04]} 73. Kf3 {[%emt 0:00:03]} g5 {[%emt 0:00:39]} 74. hxg5+ {[%emt 0:00:08]} Kxg5 {[%emt 0:00:03]} 75. Ra8 {[%emt 0:00:26]} e4+ {[%emt 0:01:03]} 76. Ke3 {[%emt 0:00:44]} Rd6 {[%emt 0:01:09]} 77. Rg8+ {[%emt 0:00:02]} Rg6 {[%emt 0:00:05]} 78. Rh8 {[%emt 0:00:05]} Kg4 {[%emt 0:00:21]} 79. Rh7 {[%emt 0:00:01]} Rg8 {[%emt 0:00:06]} 80. Rh6 {[%emt 0:00:14]} Rg5 {[%emt 0:00:26]} 81. Rh8 {[%emt 0:00:19]} Rg6 {[%emt 0:00:31]} 82. Rh7 {[%emt 0:00:02]} Rg8 {[%emt 0:00:19]} 83. Rh6 {[%emt 0:00:52]} Rd8 {[%emt 0:01:12]} 84. Rg6+ {[%emt 0:00:06]} Kh3 {[%emt 0:00:03]} 85. Rg5 {[%emt 0:00:17]} Rd3+ {[%emt 0:00:16]} 86. Ke2 {[%emt 0:00:02]} Rf3 {[%emt 0:00:20]} 87. Kf1 {[%emt 0:04:26]} e3 {[%emt 0:00:12]} 88. Rxh5+ {[%emt 0:00:00]} Kg4 {[%emt 0:00:03]} 89. Rh4+ {[%emt 0:00:00]} Kg5 {[%emt 0:00:02]} 90. Rh2 {[%emt 0:00:41]} exf2 {[%emt 0:00:47]} 91. Rxf2 {[%emt 0:04:31]} Kg4 {[%emt 0:00:06]} 92. Kg2 {[%emt 0:00:31]} Rxg3+ {[%emt 0:00:04]} 93. Kh2 {[%emt 0:00:05]} Rh3+ {[%emt 0:01:37]} 94. Kg2 {[%emt 0:00:06]} Ra3 {[%emt 0:00:59]} 95. Rb2 {[%emt 0:00:21]} f4 {[%emt 0:00:19]} 96. Kf2 {[%emt 0:00:30]} Rf3+ {[%emt 0:00:22]} 97. Kg2 {[%emt 0:00:09]} Rg3+ {[%emt 0:00:03]} 98. Kf2 {[%emt 0:00:04]} Rc3 {[%emt 0:01:38]} 99. Ra2 {[%emt 0:00:18]} Rb3 {[%emt 0:00:02]} 100. Rc2 {[%emt 0:00:10]} Rh3 {[%emt 0:00:41]} 101. Rc8 {[%emt 0:02:16]} Rh2+ {[%emt 0:00:14]} 102. Kg1 {[%emt 0:00:22]} Re2 {[%emt 0:00:05]} 103. Rc3 {[%emt 0:00:40]} Re3 {[%emt 0:00:06]} 104. Rc2 {[%emt 0:00:13]} Kf3 {[%emt 0:01:52]} 105. Rf2+ {[%emt 0:00:13]} Kg4 {[%emt 0:00:16]} 106. Ra2 {[%emt 0:00:31]} Rh3 {[%emt 0:01:03]} 107. Ra8 {[%emt 0:01:06]} Kg3 {[%emt 0:00:35]} 108. Rg8+ {[%emt 0:00:15]} Kf3 {[%emt 0:00:05]} 109. Ra8 {[%emt 0:00:02]} Rg3+ {[%emt 0:01:14]} 110. Kf1 {[%emt 0:00:01]} Ke4 {[%emt 0:00:26]} 111. Kf2 {[%emt 0:00:29]} Rf3+ {[%emt 0:00:04]} 112. Ke2 {[%emt 0:00:08]} Re3+ {[%emt 0:00:14]} 113. Kf2 {[%emt 0:00:01]} Rf3+ 1/2-1/2

[Event "Norm Congress-IM 2019"]
[Site "Saint Louis"]
[Date "2019.05.18"]
[Round "4.3"]
[White "Ezra Paul Chambers"]
[Black "Rosen, Eric"]
[Result "0-1"]
[ECO "C77"]
[WhiteElo "2241"]
[BlackElo "2338"]
[Annotator "RC"]
[PlyCount "68"]
[EventDate "2019.05.16"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. e4 {[%emt 0:00:00]} e5 {[%emt 0:00:00]} 2. Nf3 {[%emt 0:00:00]} Nc6 {[%emt 0:00:00]} 3. Bb5 {[%emt 0:01:31]} a6 {[%emt 0:00:00]} 4. Ba4 {[%emt 0:00:03]} Nf6 {[%emt 0:00:00]} 5. d3 {[%emt 0:00:51]} b5 {[%emt 0:03:23]} 6. Bb3 {[%emt 0:00:05]} Bc5 {[%emt 0:01:12]} 7. Nc3 {[%emt 0:00:32]} h6 {[%emt 0:02:32]} 8. Nd5 {[%emt 0:02:01]} d6 {[%emt 0:02:49]} 9. c3 {[%emt 0:01:41]} Rb8 {[%emt 0:03:48]} 10. O-O {[%emt 0:09:19]} O-O {[%emt 0:02:24]} 11. h3 {[%emt 0:08:22]} Nxd5 {[%emt 0:12:04]} 12. exd5 {[%emt 0:02:27]} Ne7 {[%emt 0:00:06]} 13. d4 {[%emt 0:00:24]} exd4 {[%emt 0:00:20]} 14. Nxd4 {[%emt 0:00:33]} Bb7 {[%emt 0:02:53]} 15. Ne2 {[%emt 0:27:17]} Ng6 {[%emt 0:02:17]} 16. Bc2 {[%emt 0:02:45]} Qh4 {[%emt 0:01:45]} 17. b3 {[%emt 0:10:48]} Rbe8 {[%emt 0:01:52]} 18. Qd3 {[%emt 0:00:17]} Bxd5 {[%emt 0:03:54]} 19. Ng3 {[%emt 0:03:40]} Re5 {[%emt 0:04:13]} 20. a4 {[%emt 0:00:36]} Rfe8 {[%emt 0:01:24]} 21. axb5 {[%emt 0:00:36]} axb5 {[%emt 0:00:10]} 22. Bd2 {[%emt 0:02:09]} Bc6 {[%emt 0:02:51]} 23. Kh2 {[%emt 0:00:13]} Rd5 {[%emt 0:04:45]} 24. Qf3 {[%emt 0:00:17]} Ne5 {[%emt 0:01:40]} 25. Qf5 {[%emt 0:01:58]} Ng4+ {[%emt 0:02:00]} 26. Qxg4 {[%emt 0:00:06]} Qxg4 {[%emt 0:00:04]} 27. hxg4 {[%emt 0:00:07]} Rxd2 {[%emt 0:00:03]} 28. Ra2 {[%emt 0:00:28]} Rxf2 {[%emt 0:01:36]} 29. Rxf2 {[%emt 0:00:19]} Bxf2 {[%emt 0:00:02]} 30. Nf5 {[%emt 0:00:25]} g6 {[%emt 0:02:18]} 31. Nxh6+ {[%emt 0:00:19]} Kg7 {[%emt 0:00:10]} 32. g5 {[%emt 0:00:07]} Be3 {[%emt 0:01:04]} 33. Ng4 {[%emt 0:00:24]} Bf4+ {[%emt 0:00:25]} 34. Kg1 {[%emt 0:00:29]} Bxg5 {[%emt 0:02:42]} 0-1

[Event "Norm Congress-IM 2019"]
[Site "Saint Louis"]
[Date "2019.05.18"]
[Round "4.4"]
[White "Torres Rosas, Luis Carlos"]
[Black "Chiku-Ratte, Olivier-Kenta"]
[Result "1-0"]
[ECO "E70"]
[WhiteElo "2320"]
[BlackElo "2378"]
[Annotator "TA"]
[PlyCount "99"]
[EventDate "2019.05.16"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 21,99,14,43,44,63,68,57,59,91,84,91,77,84,90,113,104,144,160,142,137,197,186,179,161,302,313,303,300,264,311,314,276,292,272,270,183,515,89,79,93,123,112,129,99,135,108,182,71,120,110,207,209,291,293,290,284,407,397,713,698,933,933,933,921,856,762,2347,2093,29982,29983,29986,29987,29988,29989,29989,29990,29991,29992,29993,29994]} 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nge2 O-O 6. Ng3 e5 7. d5 a5 8. Be2 Na6 9. h4 h5 10. Bg5 Qe8 11. Qd2 Kh7 12. f3 {E70: King's Indian: Miscellaneous lines with 4 e4, including 5 Nge2 and 5 Bd3 0-0 6 Nge2} Ng8 13. O-O-O (13. Nb5 b6 14. a3 Bd7 15. b4 f6 16. Be3 f5 17. exf5 gxf5 18. Bg5 e4 19. Rb1 exf3 20. gxf3 axb4 21. axb4 Bxb5 22. cxb5 {1-0 (35) Aronian,L (2794)-Naiditsch,A (2701) Karlsruhe/Baden-Baden 2018}) 13... f6 $146 ({Predecessor:} 13... a4 14. Rdg1 f6 15. Be3 f5 16. exf5 gxf5 17. Nxh5 Qxh5 18. g4 Qe8 19. h5 a3 {1-0 (31) Kantor,G (2506)-Nitin,S (2415) Budapest 2017}) 14. Be3 {White is slightly better.} Bh6 15. Nf1 f5 16. exf5 gxf5 17. Bg5 Qg6 18. Bd3 Nc5 19. Bc2 Nf6 20. Ng3 Ne8 (20... Rf7 $16 21. Bxh6 Qxh6) 21. Nge2 $18 Nf6 22. Rdg1 Rg8 {[#]} (22... e4 {might work better.} 23. Nf4 Bxg5 24. hxg5 Qxg5 25. Nxh5 Qxd2+ 26. Kxd2 Kg8) 23. g4 $1 {[%mdl 512]} Bxg5 (23... fxg4 24. Bxg6+) 24. hxg5 (24. Qxg5 Qxg5+ 25. hxg5 Rxg5 $14) 24... Qxg5 25. f4 exf4 26. gxf5 (26. Nxf4 Bd7 $18) 26... Qh6 27. Rxg8 ({Less strong is} 27. Qxf4 Bd7 $14) 27... Kxg8 28. Nxf4 Bd7 $2 {[#]} (28... Qg5 29. Ne6 Qxd2+ 30. Kxd2 Bxe6) 29. Nxh5 $2 (29. Rg1+ $1 $18 {and the rest is easy.} Ng4 30. Qh2) 29... Qxd2+ $16 30. Kxd2 Nxh5 31. Rxh5 Re8 32. b3 Re5 33. Ne2 Kg7 (33... Ne4+ $16 {was worth a try.} 34. Bxe4 Rxe4) 34. Ng3 (34. Nd4 $18) 34... Be8 35. Rh4 Bf7 {[#]} (35... c6 $16 {keeps fighting.}) 36. Ne2 $1 $18 a4 37. Nd4 ({Don't do} 37. bxa4 $6 Be8 $18) 37... axb3 38. axb3 Nd7 (38... Kg8 {was necessary.} 39. Nf3 Re8) 39. Ne6+ Bxe6 $2 {[#]} (39... Kg8 40. Rg4+ Kh8) 40. Rh7+ $1 {[%mdl 512]} Kf8 {...Bf7 is the strong threat.} (40... Kxh7 41. fxe6+) 41. dxe6 {[%mdl 4096] Endgame KRB-KRN} Nc5 42. Rxc7 b6 43. Ra7 d5 44. b4 Ne4+ 45. Bxe4 {White mates.} dxe4 46. Rf7+ Ke8 47. Ke3 b5 48. c5 Kd8 49. c6 Kc8 50. e7 {Accuracy: White = 76%, Black = 34%.} 1-0

[Event "Norm Congress-IM 2019"]
[Site "Saint Louis"]
[Date "2019.05.18"]
[Round "4.5"]
[White "Grabinsky, Aaron"]
[Black "Giannatos, Peter"]
[Result "0-1"]
[ECO "D00"]
[WhiteElo "2338"]
[BlackElo "2290"]
[Annotator "ChessBase"]
[PlyCount "76"]
[EventDate "2019.05.16"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. d4 {[%emt 0:00:00]} d5 {[%emt 0:00:00]} 2. Bf4 {[%emt 0:00:00]} Bf5 {[%emt 0:00:00]} 3. e3 {[%emt 0:00:00]} e6 {[%emt 0:00:00]} 4. Nf3 {[%emt 0:01:07]} Bd6 {[%emt 0:00:44]} 5. Bg3 {[%emt 0:00:15]} Nf6 {[%emt 0:00:44]} 6. c4 {[%emt 0:00:40]} O-O {[%emt 0:01:26]} 7. Nc3 {[%emt 0:00:30]} Bxg3 {[%emt 0:11:13]} 8. hxg3 {[%emt 0:00:06]} c6 {[%emt 0:02:33]} 9. Bd3 {[%emt 0:00:54]} dxc4 {[%emt 0:02:12]} 10. Bxc4 {[%emt 0:00:44]} Nbd7 {[%emt 0:02:53]} 11. Nh4 {[%emt 0:03:12]} Nb6 {[%emt 0:02:36]} 12. Bb3 {[%emt 0:00:29]} a5 {[%emt 0:01:59]} 13. Nxf5 {[%emt 0:01:29]} exf5 {[%emt 0:00:05]} 14. Qf3 {[%emt 0:01:07]} a4 {[%emt 0:05:25]} 15. Bc2 {[%emt 0:00:29]} g6 {[%emt 0:00:23]} 16. O-O-O {[%emt 0:01:34]} a3 {[%emt 0:06:40]} 17. b3 {[%emt 0:03:11]} Nbd5 {[%emt 0:00:06]} 18. Nxd5 {[%emt 0:00:44]} cxd5 {[%emt 0:00:21]} 19. Kb1 {[%emt 0:02:31]} Qa5 {[%emt 0:03:47]} 20. Qe2 {[%emt 0:01:23]} Rac8 {[%emt 0:03:15]} 21. Rc1 {[%emt 0:01:36]} Rc3 {[%emt 0:10:26]} 22. Bd3 {[%emt 0:00:52]} Rfc8 {[%emt 0:01:17]} 23. Rxc3 {[%emt 0:00:54]} Rxc3 {[%emt 0:01:36]} 24. Rd1 {[%emt 0:01:15]} Kg7 {[%emt 0:02:48]} 25. Rd2 {[%emt 0:04:15]} Ne4 {[%emt 0:04:30]} 26. Bxe4 {[%emt 0:00:35]} fxe4 {[%emt 0:00:07]} 27. Qd1 {[%emt 0:02:08]} Rd3 {[%emt 0:06:59]} 28. Rxd3 {[%emt 0:02:15]} exd3 {[%emt 0:00:05]} 29. Qxd3 Qe1+ {[%emt 0:00:15]} 30. Kc2 {[%emt 0:00:17]} Qa1 {[%emt 0:00:43]} 31. Qb5 {[%emt 0:00:30]} Qxa2+ {[%emt 0:00:53]} 32. Kc3 {[%emt 0:00:18]} Qb2+ {[%emt 0:01:44]} 33. Kb4 {[%emt 0:00:08]} a2 {[%emt 0:00:32]} 34. Qxd5 {[%emt 0:00:07]} Qd2+ {[%emt 0:00:39]} 35. Kc4 {[%emt 0:01:15]} Qc2+ {[%emt 0:00:27]} 36. Kb4 {[%emt 0:00:08]} a1=Q {[%emt 0:00:40]} 37. Qe5+ {[%emt 0:00:12]} f6 {[%emt 0:00:44]} 38. Qe7+ {[%emt 0:00:08]} Kh6 {[%emt 0:00:05]} 0-1

[Event "Norm Congress-IM 2019"]
[Site "Saint Louis"]
[Date "2019.05.18"]
[Round "5.1"]
[White "Giannatos, Peter"]
[Black "Kiewra, Keaton"]
[Result "0-1"]
[ECO "B70"]
[WhiteElo "2290"]
[BlackElo "2375"]
[Annotator "TA"]
[PlyCount "76"]
[EventDate "2019.05.16"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,76,18,13,51,64,59,31,39,26,52,0,-4,-43,-56,-48,-45,-49,-20,-6,-33,-17,-33,-27,-8,-28,-30,-25,0,-8,31,36,114,70,56,44,68,0,0,-35,-20,-435,-142,-401,-354,-441,-422,-595,-580,-543,-546,-503,-443,-1657,-1651,-29995,-29996,-29996,-29997]} 1. e4 c5 2. Nf3 g6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 Bg7 7. O-O Nc6 8. Nb3 O-O 9. Bg5 Be6 10. Re1 a5 11. a4 Nb4 {B70: Sicilian Dragon: 6 g3 and 6 Be2 (without a later Be3)} (11... h6 12. Be3 d5 13. exd5 Bxd5 14. Nc5 Nb4 15. Nb5 b6 16. Nd3 Nxd3 17. Qxd3 Qc8 18. Bd4 Qb7 19. Bf1 {½-½ (36) Kramnik,V (2788)-Navara,D (2672) Prague 2008}) 12. Nd4 Bd7 13. Bf1 h6 {White is slightly better.} 14. Bh4 Bc6 $146 ({Predecessor:} 14... Rc8 15. Ncb5 g5 16. c3 Nc6 17. Bg3 Qb6 18. Kh1 {1-0 (68) Koziol,K (2258)-Wyczling,B (1959) Szklarska Poreba 2016}) 15. Ncb5 ({Better is} 15. f3 $14) 15... g5 $11 16. c3 gxh4 17. cxb4 Bxe4 18. bxa5 d5 19. b4 e6 20. Rc1 Qe7 21. Qd2 Rac8 22. Nb3 {[#]} h3 $1 {[%mdl 512] Hoping for ...hxg2.} 23. g3 (23. gxh3 Kh8) 23... Nd7 24. f4 e5 25. Bxh3 {Black must now prevent Nc7.} f5 (25... Rxc1 $1 $14 26. Nxc1 Nb8) 26. Bg2 {Rxc8 is the strong threat.} Kh7 27. Bxe4 dxe4 28. Qd6 (28. Rxc8 $14 Rxc8 29. Nd6) 28... Qf7 29. Nd2 exf4 30. gxf4 $2 {[%mdl 8192]} (30. Rxc8 $1 $11 {and White has nothing to worry.} Rxc8 31. Qxf4) 30... Nf6 $2 (30... Rg8 $1 $19 {and Black stays clearly on top.} 31. Kh1 Be5 $1 {[%mdl 512]} 32. Rxc8 (32. fxe5 $2 Qg7 $19) 32... Bxd6 33. Nxd6 Qa2 34. Rxg8 Kxg8) 31. Nf1 $2 {[%mdl 8192]} (31. Rxc8 $17 Rxc8 32. Nf1) 31... Rcd8 32. Qc7 Qg6+ 33. Ng3 (33. Kh1 $142 Nd5 34. Qc2) 33... Nd5 34. Qxb7 Nxf4 {aiming for ...Qg4!} 35. Rc7 {[#]} Rg8 $1 {Threatens to win with ...Qg4!} 36. Qb6 {[#]} (36. Rd7 $142 Rxd7 37. Qxd7) 36... Qg4 $1 $19 {[%mdl 512] ( -> ...Nh3+)} 37. Qc5 Nh3+ 38. Kg2 Rd2+ {Accuracy: White = 20%, Black = 47%.} 0-1

[Event "Norm Congress-IM 2019"]
[Site "Saint Louis"]
[Date "2019.05.18"]
[Round "5.2"]
[White "Chiku-Ratte, Olivier-Kenta"]
[Black "Grabinsky, Aaron"]
[Result "1-0"]
[ECO "E11"]
[WhiteElo "2378"]
[BlackElo "2338"]
[Annotator "TA"]
[PlyCount "103"]
[EventDate "2019.05.16"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,102,39,42,35,55,57,39,47,82,20,20,5,26,21,18,0,0,0,25,18,22,-16,32,41,58,56,56,54,66,33,40,25,120,116,106,115,103,103,122,72,108,59,102,96,107,37,82,84,106,66,69,85,101,101,108,63,55,8,8,19,8,8,50,17,26,22,63,56,76,22,81,91,221,205,243,227,618,621,1733,1706,1495,1472,1525,1425,29991,29992,29992,29993,29997,29998,29998,29999,29999]} 1. d4 e6 2. Nf3 Nf6 3. c4 Bb4+ 4. Bd2 a5 5. g3 d6 6. Bg2 Nc6 7. O-O {E11: Bogo-Indian} e5 8. Bg5 {Strongly threatening a3.} exd4 9. Nxd4 {White is slightly better.} Bd7 (9... Nxd4 10. Qxd4 h6 11. Bxf6 Qxf6 12. Qxf6 gxf6 13. a3 Bc5 14. Nc3 c6 {1-0 (51) Giri,A (2714)-Ivanchuk,V (2775) Reggio Emilia 2012}) 10. Nc2 $146 (10. a3 $16 Bc5 11. Nb5) ({Predecessor:} 10. Nb5 Rc8 11. a3 Bc5 12. N1c3 h6 13. Bxf6 Qxf6 14. Nd5 Qd8 {1-0 (39) Dreev,A (2607)-Apicella,M (2539) Kemer 2007}) 10... h6 $11 11. Bf4 Bc5 12. Nc3 O-O 13. h3 Re8 14. e4 Ne5 15. Qe2 Bc6 16. Rad1 Qe7 17. Rfe1 Qe6 18. Nd5 Bxd5 19. cxd5 Qd7 20. b3 c6 21. dxc6 bxc6 {[#]} (21... Nxc6 $11 22. Bd2 Re6) 22. Be3 $1 $16 {[%cal Re3c5]} Bxe3 23. Nxe3 Qc7 24. Nf5 {Black must now prevent f4.} Rad8 {[%cal Ba8d8,Bd8d7,Bd7a7,Ba7a2][%mdl 32]} 25. Kh2 Ng6 26. Qb2 Kh7 27. Qc3 Rd7 28. Nd4 (28. f4 $16) 28... c5 29. Nf5 Qb6 30. Ne3 Qb4 31. Qc2 a4 32. bxa4 Ra7 33. a5 Qxa5 34. Nc4 Qxa2 35. Qxa2 Rxa2 36. Nxd6 Re7 37. Kg1 h5 38. h4 Ng4 39. f3 $1 $36 {[%cal Rf3g4][%mdl 2048] White has the initiative.} Nf6 40. f4 ({Better is} 40. Ra1 $16 Rd2 41. Nc4) 40... Ng4 (40... Ra3 $11) 41. Rd5 Rc7 (41... Kg8 $16 {keeps fighting.}) 42. Rxh5+ $18 Kg8 {[#]} 43. Rg5 $1 {[%cal Rg5g4]} Nf2 $2 (43... Nh6 44. Bf1 Ra8) 44. Rb1 c4 45. Rb8+ Nf8 46. Re5 g6 47. Ree8 c3 48. Rxf8+ {White mates.} Kg7 49. e5 c2 50. Rg8+ Kh6 51. Rh8+ Kg7 52. Rbg8# {Accuracy: White = 54%, Black = 28%.} 1-0

[Event "Norm Congress-IM 2019"]
[Site "Saint Louis"]
[Date "2019.05.18"]
[Round "5.3"]
[White "Rosen, Eric"]
[Black "Torres Rosas, Luis Carlos"]
[Result "1/2-1/2"]
[ECO "C07"]
[WhiteElo "2338"]
[BlackElo "2320"]
[Annotator "TA"]
[PlyCount "51"]
[EventDate "2019.05.16"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,20,32,0,1]} 1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 Qxd5 5. Ngf3 cxd4 6. Bc4 Qd6 7. O-O Nf6 8. Nb3 Nc6 9. Nbxd4 Nxd4 10. Qxd4 Qxd4 {C07: French Tarrasch: 3...c5, 4 Ngf3 and 4 exd5 Qxd5} {Predecessor:} 11. Nxd4 $146 Bd7 12. Be2 Bc5 13. Rd1 Rc8 14. c4 O-O 15. Be3 e5 16. Nc2 Bf5 17. Bxc5 Rxc5 18. Ne3 Be6 19. b4 Rc7 20. c5 Ne4 21. Rac1 Rfc8 22. Bf3 Nf6 23. Bd5 Nxd5 24. Nxd5 Bxd5 25. Rxd5 f6 26. Rcd1 {½-½ (26) Anand,V (2786)-So,W (2812) Stavanger 2017} 1/2-1/2

[Event "Norm Congress-IM 2019"]
[Site "Saint Louis"]
[Date "2019.05.18"]
[Round "5.4"]
[White "Jacobson, Aaron"]
[Black "Ezra Paul Chambers"]
[Result "1-0"]
[ECO "B32"]
[WhiteElo "2311"]
[BlackElo "2241"]
[Annotator "TA"]
[PlyCount "99"]
[EventDate "2019.05.16"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,99,25,25,26,32,32,40,39,30,38,30,25,38,31,45,33,23,25,51,8,8,0,2,2,2,0,0,0,15,0,-8,-82,-57,-40,0,-35,0,0,98,89,195,189,189,186,536,242,221,224,1005,303,1044,347,344,275,341,342,290,177,336,336,336,336,336,314,314,0,314,308,320,321,321,321,2279,2219,2147,1394,1294,1104,2513,1691,1460,1212,29981,29982]} 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e5 5. Nb5 d6 6. c4 Be7 7. N1c3 a6 8. Na3 f5 9. exf5 Bxf5 10. Nc2 {B32: Sicilian: Löwenthal and Kalashnikov Variations} Nf6 11. Ne3 (11. Bd3 Be6 12. O-O O-O 13. b3 Qd7 14. Bb2 Bd8 15. Ne4 Bb6 16. Qe2 Rad8 17. Kh1 Nxe4 18. Bxe4 {½-½ (50) Yu,Y (2764)-Potapov,P (2516) St Petersburg 2018}) 11... Be6 12. g3 {White is slightly better.} O-O 13. Bg2 Qd7 14. O-O b5 15. cxb5 axb5 16. Ncd5 Rab8 17. b3 Bd8 18. Bb2 $146 Ne7 19. Qd2 Nexd5 20. Nxd5 Nxd5 21. Bxd5 Bb6 22. Rad1 Rf6 {Hoping for ...Rbf8.} 23. Kg2 Rc8 24. f4 (24. f3 $11) 24... Qf7 $17 {Strongly threatening ...Bxd5+.} 25. Bxe6 Qxe6 26. Rc1 Rff8 27. f5 Qf7 (27... Rxf5 $11 {keeps the balance.} 28. Rxc8+ (28. Qxd6 Qxd6 29. Rxc8+ Kf7 $15) 28... Qxc8 29. Qd5+ Kh8 30. Rxf5 Qc2+ {[%mdl 64] Double Attack} 31. Kh1 Qb1+ {[%mdl 64] Double Attack} 32. Kg2 Qc2+ 33. Kh1 Qb1+ {[%mdl 64] Double Attack} 34. Kg2 Qc2+) 28. Qxd6 $16 {[%mdl 64] [#] Double Attack} Qb7+ (28... Be3 $16 {was necessary.} 29. Rxc8 Rxc8) 29. Kh3 $18 Rxc1 30. Rxc1 (30. Bxc1 Bd4 $16) 30... Bd4 $2 (30... Re8 {is tougher.} 31. Rf1 (31. Bxe5 Qf3 $14) 31... Ba7) 31. Bxd4 (31. Ba3 $142 {[%csl Ga3][%cal Rd6f8]} Qf7 32. Qxf8+ Qxf8 33. Bxf8 Kxf8 34. Rc7) 31... exd4 {[%mdl 4096] Endgame KQR-KQR} 32. Rc5 $40 {[%mdl 128] White attacks with force.} ({Much less strong is} 32. Qxd4 $6 Rxf5 33. Qd6 h6 $16) 32... Ra8 $2 (32... Qf7 33. Qxd4 Qh5+ 34. Kg2 Qe2+ 35. Qf2 Re8 36. Qxe2 Rxe2+ 37. Kh3 Rxa2 38. Rxb5 h5) 33. Qxd4 $2 (33. Rc7 Qb8 34. f6 Qxc7 35. Qxc7 gxf6 36. Qd7 Rxa2 37. Qxd4) 33... b4 $2 (33... Qf7 34. g4 Rb8) 34. Qe5 $2 (34. Qc4+ Qf7 35. Rc8+ Rxc8 36. Qxc8+ Qf8 37. Qxf8+ Kxf8 38. Kg4) 34... Qf7 {( -> ...Qh5+)} 35. Qe6 {And now Rc8+ would win.} Qxe6 36. fxe6 {KR-KR} Kf8 37. Rb5 Ke7 $2 (37... Rxa2 38. Rxb4 Ra6) 38. Rxb4 Rxa2 39. Rb7+ Kf8 40. Rf7+ Kg8 41. Rb7 {[%cal Rb7b8]} Kf8 42. g4 Re2 {[#]} 43. e7+ $1 Ke8 44. b4 {[%cal Bb3b4,Bb4b5,Bb5b6][%mdl 32]} g5 $2 (44... Re3+ 45. Kg2 Re1) 45. b5 Rb2 46. b6 Rb3+ 47. Kg2 h6 48. Kf2 Rb2+ 49. Ke3 Rxh2 50. Rc7 {Accuracy: White = 53%, Black = 31%.} 1-0

[Event "Norm Congress-IM 2019"]
[Site "Saint Louis"]
[Date "2019.05.18"]
[Round "5.5"]
[White "Wu, Rochelle"]
[Black "Gauri, Shankar"]
[Result "1/2-1/2"]
[ECO "E32"]
[WhiteElo "2174"]
[BlackElo "2375"]
[Annotator "TA"]
[PlyCount "115"]
[EventDate "2019.05.16"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,115,0,0,0,0,0,0,0,0,12,0,0,0,0,0,0,0,0,0,0,-7,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-31,-15,-36,-32,-56,-4,-20,-14,-11,-2,-18,-15,-53,-29,-36,-26,-34,-19,-22,-22,-26,-5,-18,0,-20,0,-8,-9,-31,-29,-27,-27,-57,-31,-29,-4,-40,-40,-40,-40,-40,-40,-40,-41,-46,-41,-48,-48,-52,-13,-48,-48,-53,-53,-79,-22,-22,0,0,0,-20,-20,-28,0,-28,-28,-43]} 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 O-O 5. a3 Bxc3+ 6. Qxc3 b6 7. Bg5 Bb7 ({Predecessor:} 7... h6 8. Bh4 Bb7 9. e3 d6 10. Ne2 Nbd7 11. Qc2 c5 12. Rd1 cxd4 13. Rxd4 Qe7 {½-½ (42) Lara Ruiz,J (2301)-Dutra,A (2429) ICCF email 2015}) 8. e3 d6 {E32: Nimzo-Indian: Classical (4 Qc2): 4...0-0} 9. Ne2 $146 (9. f3 Nbd7 10. Nh3 c5 11. dxc5 bxc5 12. Be2 Qb6 13. O-O a5 14. Nf2 a4 15. Rad1 h6 16. Bh4 d5 17. Ng4 Nxg4 18. fxg4 Qc6 19. Rf2 Nb6 {0-1 (61) Sjugirov,S (2663)-Martirosyan,H (2607) chess.com INT 2019}) 9... Nbd7 10. Qc2 c5 {The position is equal.} 11. Rd1 Qe7 12. Nc3 cxd4 13. Rxd4 h6 14. Bh4 Ne5 15. f3 Rac8 16. Be2 Ng6 17. Bf2 d5 18. cxd5 Nxd5 19. Nxd5 Bxd5 20. Qb1 Rfd8 21. O-O Bb3 {...Rxd4 is the strong threat.} 22. Rc1 Rxc1+ 23. Qxc1 Rxd4 24. exd4 Qd7 25. g3 Ne7 26. Bd3 Bd5 27. Qf4 Qd8 ({Better is} 27... g5 $15 28. Qe3 Nf5 29. Bxf5 exf5) 28. Kg2 Nc6 29. Qe3 Qd6 30. Bb5 Ne7 31. Qc3 Bb7 32. Bd3 Nd5 33. Qc2 Nf6 34. Qe2 Qc6 35. Bb5 Qd5 36. Bd3 Qb3 37. Kg1 Qd5 38. Qe5 {White wants to mate with Qb8+.} Qd8 39. Qf4 g5 40. Qe3 Qd5 41. Be2 {[#]} Ng4 $1 {[%mdl 512]} 42. Qc3 (42. fxg4 Qh1#) 42... e5 (42... Nxf2 {keeps more tension.} 43. Kxf2 g4 44. Qe3 Qh5 45. Kg2 Qf5) 43. dxe5 (43. Bc4 {seems wilder.} Qxf3 44. Qxf3 Bxf3 45. h3 Nxf2 46. Kxf2 e4 47. d5) 43... Nxe5 44. Bd4 Nxf3+ 45. Bxf3 Qxf3 46. Qxf3 Bxf3 $15 {[%mdl 4096] Endgame KB-KB} 47. a4 Bc6 48. a5 bxa5 49. Bxa7 f5 50. Bb6 a4 51. Be3 Kf7 52. h4 {[#]} gxh4 (52... f4 $1 $17 {[%mdl 512]} 53. gxf4 gxh4) 53. gxh4 $11 h5 54. Kf2 Ke6 55. Kg3 Ke5 56. Bf4+ Kd4 57. Bd6 Ke4 58. Bc7 {Accuracy: White = 59%, Black = 47%.} 1/2-1/2

[Event "Norm Congress-IM 2019"]
[Site "Saint Louis"]
[Date "2019.05.19"]
[Round "6.1"]
[White "Kiewra, Keaton"]
[Black "Gauri, Shankar"]
[Result "1-0"]
[ECO "A06"]
[WhiteElo "2375"]
[BlackElo "2375"]
[Annotator "TA"]
[PlyCount "91"]
[EventDate "2019.05.16"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,91,12,-7,0,0,0,0,0,-12,0,-13,-14,0,48,65,79,54,91,60,89,86,126,112,106,108,103,90,82,114,132,16,153,143,181,125,124,97,163,145,159,151,160,80,76,66,65,69,65,75,58,39,84,67,190,206,186,136,240,212,704,672,656,629,559,502,687,697,675,662,5214,5106,6520,6440,5074,3055,29986,29987,29990,29991,29990,29982,29997,578]} 1. Nf3 d5 2. e3 Nf6 3. c4 e6 4. b3 Bd6 5. Bb2 O-O 6. Be2 Nbd7 {A13: English Opening: 1...e6} (6... dxc4 7. Bxc4 b6 8. Nc3 Bb7 9. d4 a6 10. O-O b5 11. Bd3 Nbd7 12. a4 b4 13. Nb1 c5 14. Nbd2 cxd4 15. Nxd4 {½-½ (59) Nakamura,H (2746)-So,W (2765) Kolkata 2018}) 7. Qc2 c5 8. Nc3 b6 {The position is equal.} 9. g4 Bb7 10. g5 Ne8 $146 ({Predecessor:} 10... Ne4 11. Rg1 Re8 12. h4 Qb8 13. h5 Ne5 {1-0 (36) Pardo Simon,D (2492)-Prithu,G (1981) Pardubice 2016}) 11. Rg1 Nc7 12. h4 b5 13. Nxb5 Nxb5 14. cxb5 e5 15. h5 Rc8 16. Nh4 Re8 17. Nf5 Bf8 18. g6 fxg6 19. hxg6 {[#] Strongly threatening Nh6+!} h6 20. e4 (20. f4 $16) 20... Nf6 (20... c4 $1 $11) 21. exd5 $16 Bxd5 {[#] Black wants to play ...c4.} 22. Bc4 (22. Ne3 $1 $18) 22... Kh8 {Threatening ...Be4.} 23. Qd3 Rc7 (23... Be4 $16 {might work better.} 24. Qxd8 Rcxd8) 24. Ne3 Rd7 25. Nxd5 Nxd5 26. Bxd5 ({White should try} 26. Qf5) 26... Rxd5 27. Qc2 Be7 28. O-O-O Bg5 29. Kb1 Rf8 30. d3 Rf3 31. Rg3 Rxg3 (31... Rf8 $14) 32. fxg3 $18 e4 {[%cal Rd5d3]} 33. d4 e3 (33... Qe8 $16 {keeps fighting.}) 34. Qe4 cxd4 $2 (34... Bf6) 35. Rxd4 Rxd4 36. Bxd4 Qd7 37. Kc2 Bf6 38. Bxe3 Qc8+ 39. Kd3 h5 40. Bxa7 h4 41. gxh4 Qd7+ 42. Kc4 Qc7+ 43. Bc5 {[%cal Re4e8] White mates.} Qd7 44. b6 Bd8 45. Qf3 {[%cal Rf3f8]} Be7 46. Qh5+ {Accuracy: White = 64%, Black = 37%.} 1-0

[Event "Norm Congress-IM 2019"]
[Site "Saint Louis"]
[Date "2019.05.19"]
[Round "6.2"]
[White "Ezra Paul Chambers"]
[Black "Wu, Rochelle"]
[Result "1-0"]
[ECO "B60"]
[WhiteElo "2241"]
[BlackElo "2174"]
[Annotator "TA"]
[PlyCount "51"]
[EventDate "2019.05.16"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,51,35,63,49,61,30,62,53,87,62,82,80,108,116,104,116,123,111,125,124,252,146,214,89,208,213,215,219,193,181,289,260,347,318,313,224,332,210,178,215]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 Bd7 7. Be2 Rc8 8. Bxf6 {B60: Sicilian: Richter-Rauzer: Unusual Black 6th moves and 6...Bd7 without 7 Qd2} (8. O-O Nxd4 9. Qxd4 Qa5 10. Bxf6 gxf6 11. a4 a6 12. Kh1 h5 13. Qa7 Bc6 14. Bb5 Qc7 15. Bxc6+ Qxc6 16. f4 h4 17. h3 f5 18. exf5 Rg8 19. Rf3 {1-0 (33) Shirov,A (2720)-Czarnota,P (2554) Germany 2006}) 8... gxf6 9. O-O Qb6 $146 ({Predecessor:} 9... Nxd4 10. Qxd4 Qa5 11. a4 Qc5 12. Rfd1 a6 13. Ra3 Bg7 14. Qd2 f5 15. Bd3 Rg8 16. exf5 Bc6 17. Be4 Bxe4 18. Nxe4 Qxf5 19. Re3 Be5 20. Nxd6+ exd6 21. Qxd6 f6 22. f4 Rg7 23. fxe5 Re7 24. Rf1 Qg5 25. Rg3 {1-0 (25) Roganovic,M (2480)-Pecurica,M (2149) Tivat 2011}) 10. Nb3 {White is slightly better.} Bg7 11. Bg4 {aiming for Bxd7+.} Qd8 12. f4 f5 13. Bxf5 Bxf5 14. exf5 Bxc3 15. bxc3 Qb6+ 16. Kh1 Nb8 (16... Rg8 $16 {was called for.}) 17. Qg4 ({White should play} 17. f6 $1 $18) 17... Nd7 {[#]} (17... d5 $16 {was necessary.}) 18. Rae1 (18. f6 $1 $18 {[%mdl 512] and White stays clearly on top.}) 18... Kd8 (18... d5 $16) 19. Qg7 $18 Rf8 20. Rf3 d5 21. Rfe3 Qd6 (21... Qf6 {is a better defense.} 22. Qg3 Re8) 22. Nd4 (22. Qxh7 $6 Nf6 $16) 22... b6 23. a4 ({But not} 23. Rxe7 Qxe7 24. Rxe7 Kxe7 $18) 23... a6 24. g3 ({Don't play} 24. Qxh7 Nf6 $18) 24... h5 {[#]} (24... Qf6 $142 25. Qg4 Rc7) 25. Ne6+ $1 {[%mdl 512]} fxe6 26. fxe6 {Accuracy: White = 49%, Black = 20%.} 1-0

[Event "Norm Congress-IM 2019"]
[Site "Saint Louis"]
[Date "2019.05.19"]
[Round "6.3"]
[White "Torres Rosas, Luis Carlos"]
[Black "Jacobson, Aaron"]
[Result "1-0"]
[ECO "E47"]
[WhiteElo "2320"]
[BlackElo "2311"]
[Annotator "RC"]
[PlyCount "67"]
[EventDate "2019.05.16"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. d4 {[%emt 0:00:30]} Nf6 {[%emt 0:00:00]} 2. c4 {[%emt 0:00:05]} e6 {[%emt 0:00:00]} 3. Nc3 {[%emt 0:00:05]} Bb4 {[%emt 0:00:20]} 4. e3 {[%emt 0:00:34]} O-O {[%emt 0:00:07]} 5. Bd3 {[%emt 0:00:08]} c5 {[%emt 0:00:37]} 6. Nge2 {[%emt 0:00:21]} cxd4 {[%emt 0:00:57]} 7. exd4 {[%emt 0:00:13]} d5 {[%emt 0:00:06]} 8. cxd5 {[%emt 0:01:38]} Nxd5 {[%emt 0:01:06]} 9. O-O {[%emt 0:00:12]} Nc6 {[%emt 0:00:54]} 10. Nxd5 {[%emt 0:03:04]} exd5 {[%emt 0:02:29]} 11. Nf4 {[%emt 0:01:11]} Be7 {[%emt 0:05:12]} 12. Be3 {[%emt 0:05:11]} Bf6 {[%emt 0:03:52]} 13. Nh5 {[%emt 0:04:01]} Re8 {[%emt 0:10:30]} 14. Rc1 {[%emt 0:18:04]} Be6 {[%emt 0:15:43]} 15. Qf3 {[%emt 0:06:54]} Be7 {[%emt 0:19:05]} 16. Nxg7 {[%emt 0:09:14]} Kxg7 {[%emt 0:00:06]} 17. Qh5 {[%emt 0:00:08]} Bf6 {[%emt 0:07:38]} 18. Qh6+ {[%emt 0:12:46]} Kg8 {[%emt 0:00:04]} 19. Bxh7+ {[%emt 0:00:30]} Kh8 {[%emt 0:00:04]} 20. Bf5+ {[%emt 0:00:50]} Kg8 {[%emt 0:00:04]} 21. Qh7+ {[%emt 0:00:24]} Kf8 {[%emt 0:00:04]} 22. Bh6+ {[%emt 0:00:04]} Ke7 {[%emt 0:00:06]} 23. Bxe6 {[%emt 0:00:04]} Kxe6 {[%emt 0:01:23]} 24. Rfe1+ {[%emt 0:02:32]} Kd7 {[%emt 0:00:24]} 25. Qxf7+ {[%emt 0:00:09]} Re7 {[%emt 0:03:42]} 26. Qxd5+ {[%emt 0:00:55]} Ke8 {[%emt 0:00:26]} 27. Qh5+ {[%emt 0:09:41]} Kd7 {[%emt 0:00:08]} 28. Qf5+ {[%emt 0:03:39]} Kc7 {[%emt 0:00:23]} 29. Bf4+ {[%emt 0:01:09]} Kb6 {[%emt 0:00:11]} 30. Qc5+ {[%emt 0:00:19]} Ka6 {[%emt 0:00:05]} 31. Qc4+ {[%emt 0:00:28]} Kb6 {[%emt 0:00:17]} 32. Rxe7 {[%emt 0:04:36]} Qxe7 {[%emt 0:01:45]} 33. d5 {[%emt 0:00:25]} Ne5 {[%emt 0:04:59]} 34. Qb3+ {[%emt 0:01:00]} 1-0

[Event "Norm Congress-IM 2019"]
[Site "Saint Louis"]
[Date "2019.05.19"]
[Round "6.4"]
[White "Grabinsky, Aaron"]
[Black "Rosen, Eric"]
[Result "1-0"]
[ECO "B40"]
[WhiteElo "2338"]
[BlackElo "2338"]
[Annotator "RC"]
[PlyCount "139"]
[EventDate "2019.05.16"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. e4 {[%emt 0:00:00]} c5 {[%emt 0:00:00]} 2. Nf3 {[%emt 0:00:00]} e6 {[%emt 0:00:00]} 3. b3 {[%emt 0:00:00]} b6 {[%emt 0:00:15]} 4. Bd3 {[%emt 0:00:00]} Bb7 {[%emt 0:01:16]} 5. O-O {[%emt 0:00:08]} Ne7 {[%emt 0:01:20]} 6. Bb2 {[%emt 0:00:38]} Ng6 {[%emt 0:01:07]} 7. c4 {[%emt 0:01:25]} Nc6 {[%emt 0:01:07]} 8. Re1 {[%emt 0:03:06]} Bd6 {[%emt 0:03:22]} 9. Na3 {[%emt 0:05:20]} Nce5 {[%emt 0:04:48]} 10. Bf1 {[%emt 0:03:06]} Nxf3+ {[%emt 0:02:56]} 11. Qxf3 {[%emt 0:00:34]} Qg5 {[%emt 0:07:27]} 12. d4 {[%emt 0:05:27]} O-O {[%emt 0:08:22]} 13. d5 {[%emt 0:03:45]} Rae8 {[%emt 0:01:30]} 14. Nb5 {[%emt 0:04:54]} Bb8 {[%emt 0:01:03]} 15. Qc3 {[%emt 0:01:13]} Qh6 {[%emt 0:06:09]} 16. g3 {[%emt 0:03:28]} a6 {[%emt 0:00:36]} 17. Na3 {[%emt 0:00:06]} Be5 {[%emt 0:11:40]} 18. Qc2 {[%emt 0:00:07]} f5 {[%emt 0:02:17]} 19. exf5 {[%emt 0:05:10]} Bxb2 {[%emt 0:01:35]} 20. Qxb2 {[%emt 0:00:26]} Rxf5 {[%emt 0:00:17]} 21. Bg2 {[%emt 0:03:52]} Ref8 {[%emt 0:01:47]} 22. f4 {[%emt 0:02:48]} exd5 {[%emt 0:03:20]} 23. Nc2 {[%emt 0:02:31]} R5f7 {[%emt 0:04:54]} 24. Ne3 {[%emt 0:01:22]} Ne7 {[%emt 0:01:52]} 25. Rad1 {[%emt 0:04:19]} Qg6 {[%emt 0:02:39]} 26. Qd2 {[%emt 0:08:06]} d4 {[%emt 0:03:46]} 27. Bxb7 {[%emt 0:01:10]} dxe3 {[%emt 0:00:42]} 28. Rxe3 {[%emt 0:02:08]} Nf5 {[%emt 0:04:02]} 29. Ree1 {[%emt 0:05:00]} Kh8 {[%emt 0:02:47]} 30. Bd5 {[%emt 0:01:17]} Rf6 {[%emt 0:02:43]} 31. Be4 {[%emt 0:00:11]} d6 {[%emt 0:02:58]} 32. Qd5 {[%emt 0:00:41]} h6 {[%emt 0:03:04]} 33. Bxf5 {[%emt 0:01:36]} Rxf5 {[%emt 0:00:40]} 34. Qxd6 {[%emt 0:00:06]} R5f6 {[%emt 0:03:58]} 35. Qd3 {[%emt 0:00:09]} Qxd3 {[%emt 0:01:38]} 36. Rxd3 {[%emt 0:00:08]} R8f7 {[%emt 0:00:18]} 37. Rd5 {[%emt 0:00:35]} Kh7 {[%emt 0:00:19]} 38. Ree5 {[%emt 0:00:18]} Rc6 {[%emt 0:01:57]} 39. Kg2 {[%emt 0:00:54]} Rcf6 {[%emt 0:00:37]} 40. h4 {[%emt 0:00:17]} g6 {[%emt 0:02:08]} 41. h5 {[%emt 0:00:44]} gxh5 {[%emt 0:01:46]} 42. Rxh5 {[%emt 0:00:25]} Rg7 {[%emt 0:00:21]} 43. Kf3 {[%emt 0:01:12]} Rfg6 {[%emt 0:00:32]} 44. Rdg5 {[%emt 0:00:24]} a5 {[%emt 0:05:13]} 45. a4 {[%emt 0:01:29]} Rd6 {[%emt 0:00:47]} 46. Rxg7+ {[%emt 0:00:45]} Kxg7 {[%emt 0:00:02]} 47. Rd5 {[%emt 0:00:33]} Rc6 {[%emt 0:01:01]} 48. g4 {[%emt 0:02:27]} Kf6 {[%emt 0:00:18]} 49. Rh5 {[%emt 0:01:16]} Kg6 {[%emt 0:00:11]} 50. Rd5 {[%emt 0:01:18]} Kf6 {[%emt 0:00:05]} 51. Kg3 {[%emt 0:00:28]} Re6 {[%emt 0:01:21]} 52. Kh4 {[%emt 0:00:28]} Re4 {[%emt 0:00:33]} 53. Rd6+ {[%emt 0:01:25]} Ke7 {[%emt 0:00:28]} 54. Rxh6 {[%emt 0:00:13]} Rxf4 {[%emt 0:00:04]} 55. Rxb6 {[%emt 0:00:06]} Kf7 {[%emt 0:00:39]} 56. Rb5 {[%emt 0:00:31]} Rf3 {[%emt 0:00:37]} 57. Rxa5 {[%emt 0:00:36]} Rxb3 {[%emt 0:00:07]} 58. Rxc5 {[%emt 0:00:06]} Ra3 {[%emt 0:00:27]} 59. a5 {[%emt 0:00:07]} Kf6 {[%emt 0:00:16]} 60. g5+ {[%emt 0:00:13]} Kg6 {[%emt 0:00:23]} 61. Kg4 {[%emt 0:00:19]} Rc3 {[%emt 0:01:04]} 62. Rc6+ {[%emt 0:00:13]} Kf7 {[%emt 0:00:05]} 63. a6 {[%emt 0:00:06]} Ra3 {[%emt 0:00:03]} 64. Kf5 {[%emt 0:00:27]} Ke7 {[%emt 0:00:48]} 65. g6 {[%emt 0:00:28]} Ra5+ {[%emt 0:01:03]} 66. Kf4 {[%emt 0:00:33]} Kd7 {[%emt 0:00:34]} 67. g7 {[%emt 0:00:56]} Kxc6 {[%emt 0:00:04]} 68. g8=Q {[%emt 0:00:08]} Rxa6 {[%emt 0:00:02]} 69. Qc8+ {[%emt 0:00:13]} Kb6 {[%emt 0:00:09]} 70. Qb8+ {[%emt 0:00:10]} 1-0

[Event "Norm Congress-IM 2019"]
[Site "Saint Louis"]
[Date "2019.05.19"]
[Round "6.5"]
[White "Giannatos, Peter"]
[Black "Chiku-Ratte, Olivier-Kenta"]
[Result "0-1"]
[ECO "B51"]
[WhiteElo "2290"]
[BlackElo "2378"]
[Annotator "TA"]
[PlyCount "96"]
[EventDate "2019.05.16"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,96,31,0,47,33,36,30,43,31,47,12,10,0,62,-37,-25,-27,2,-23,-20,-115,-39,-47,-32,-59,0,0,0,0,15,0,0,-18,-23,-16,-28,-29,-23,-20,16,-40,-43,-37,-47,-110,-109,-106,-47,-84,-48,-150,-150,-145,-135,-235,-218,-209,-187,-464,-450,-533,-527,-613,-613,-734,-654,-887,-893,-879,-776,-676,-664,-866,-858,-2072,-2029,-29967,-5720,-3503,-2952,-2270,-2222,-29990,-29989,-29991,-29992,-29995,-29994]} 1. e4 c5 2. Nf3 d6 3. Bb5+ Nd7 4. d4 a6 5. Bxd7+ Bxd7 6. O-O Bg4 {B51: Sicilian: Moscow Variation (3 Bb5+) without 3...Bd7} (6... cxd4 7. Qxd4 e5 8. Qd3 h6 9. a4 Nf6 10. a5 Be7 11. c4 b5 12. axb6 Qxb6 13. Nc3 O-O 14. Be3 Qb7 15. h3 Rfc8 16. Nd2 Be6 17. Rfb1 a5 18. b3 Ra6 19. Ra2 Bd7 20. Rba1 {½-½ (20) Wang,H (2730)-Nepomniachtchi,I (2763) St Petersburg 2018}) 7. d5 $146 ({Predecessor:} 7. dxc5 dxc5 8. Qxd8+ Rxd8 9. Ne5 Bh5 10. Be3 f6 11. g4 fxe5 12. gxh5 e6 13. Nd2 Nf6 14. f3 Nxh5 {0-1 (46) Sarakauskas,G (2424)-Malisauskas,V (2459) Vilnius 2009}) 7... Nf6 8. h3 Bh5 {White has an edge.} 9. Qe2 Qd7 10. Nbd2 g5 11. e5 dxe5 (11... Nxd5 $11 12. Ne4 O-O-O) 12. Re1 (12. c4 $14) 12... Qxd5 13. c4 Qd6 14. Qxe5 Qxe5 15. Rxe5 (15. Nxe5 $11 g4 16. Ne4 Nxe4 17. hxg4) 15... Nd7 (15... h6 $1 $17 16. Rxc5 e6) 16. Rxg5 $15 Bg6 $1 17. Ne5 f6 ({Black should play} 17... Bh6 $15 18. Nxg6 hxg6) 18. Nxg6 $11 hxg6 19. Rg3 O-O-O 20. Ne4 Rh4 21. f3 Ne5 22. Be3 b6 23. b3 f5 24. f4 {Strongly threatening Ng5.} Bg7 25. Rf1 (25. Rb1 $1 $11) 25... Ng4 $1 $15 {[%cal Rg4e3]} 26. hxg4 fxe4 27. Re1 (27. Kf2 $15) 27... Bc3 $1 $36 {[%cal Rc3e1][%mdl 2048] White is under strong pressure.} 28. Rc1 Bf6 (28... Rd3 $17) 29. Kf2 g5 30. Ke2 ({Better is} 30. fxg5 $15 Be5 31. Rh3 Rxg4 32. Re1) 30... gxf4 31. Bxf4 Rg8 $1 32. Rf1 (32. Rh3 $17) 32... Rhxg4 $19 33. Rxg4 Rxg4 {[%mdl 4096] Endgame KRB-KRB} 34. Rf2 $2 {[#]} (34. Be3) 34... Bd4 $1 {[%cal Rd4f2]} 35. Be3 Rg3 36. Bxd4 cxd4 {KR-KR} 37. Rf4 d3+ 38. Kd1 {[#]} e3 $1 39. Re4 e2+ 40. Kd2 Kd7 41. b4 {If White can now play c5 this consolidates a bit.} Kd6 42. a3 e5 43. Kc3 Ke6 (43... b5 $142 44. Kd2 bxc4 45. Rxc4 Rxg2 46. Re4 Rg1 47. Kxd3 e1=Q 48. Rxe1 Rxe1 49. Kd2 Ra1 50. a4 Rxa4 51. Kc3 e4 52. Kd4 Rxb4+ 53. Ke3 Ke5 54. Ke2 a5 55. Ke3 a4 56. Kf2 a3 57. Kg3 a2 58. Kg2 Rb2+ 59. Kg3 a1=Q 60. Kh4 Qh1+ 61. Kg5 Rg2#) 44. Kd2 Kf5 45. Rh4 e4 46. Rh2 Ke5 {Black mates.} 47. Rh5+ {[#]} Kd4 $1 48. c5 Rxg2 {Accuracy: White = 27%, Black = 53%.} 0-1

[Event "Norm Congress-IM 2019"]
[Site "Saint Louis"]
[Date "2019.05.19"]
[Round "7.1"]
[White "Chiku-Ratte, Olivier-Kenta"]
[Black "Kiewra, Keaton"]
[Result "0-1"]
[ECO "D31"]
[WhiteElo "2378"]
[BlackElo "2375"]
[Annotator "TA"]
[PlyCount "162"]
[EventDate "2019.05.16"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,162,25,22,26,31,19,14,27,20,44,0,22,0,0,0,0,-19,0,0,0,6,19,-2,27,42,30,44,45,53,72,80,151,34,31,0,0,0,0,0,0,0,97,81,117,53,50,47,44,19,21,0,0,0,21,22,20,23,25,21,32,38,12,0,0,0,9,0,0,0,0,0,0,-71,-73,-64,-70,-57,-78,-56,-61,-81,-78,-76,-81,-164,-93,-135,-142,-141,-132,-162,-120,-195,-154,-259,-236,-370,-362,-374,-376,-372,-364,-380,-365,-479,-479,-464,-464,-461,-456,-591,-395,-559,-509,-535,-508,-579,-581,-563,-549,-564,-552,-572,-614,-1199,-1138,-1031,-986,-1991,-1701,-6625,-5911,-29974,-29967,-29984,-29985,-29985,-29986,-29986,-29985,-29990,-29986,-29991,-29987,-29995,-29996,-29996,-29997,-29997,-29998]} 1. d4 d5 2. c4 e6 3. Nc3 Be7 4. cxd5 exd5 5. Bf4 c6 6. e3 Bd6 7. Bxd6 Qxd6 8. Bd3 Ne7 {D31: Queen's Gambit Declined: Semi-Slav without ...Nf6 (+ Marshall Gambit and Noteboom) and Exchange Variation lines without ...Nf6} 9. Qc2 g6 10. O-O-O $146 ({Predecessor:} 10. Nf3 Bf5 11. Bxf5 Nxf5 12. O-O O-O 13. e4 Ne7 14. Qb3 b6 15. Rfe1 Nd7 16. Rac1 {1-0 (34) So,W (2776)-Stojanovic,D (2492) Batumi 2018}) 10... Bf5 {The position is equal.} 11. Bxf5 Nxf5 12. Nge2 Nd7 13. Kb1 O-O-O 14. Nf4 Kb8 15. g4 Ng7 16. Nd3 Ne6 17. h4 h6 18. f4 f6 19. f5 gxf5 20. gxf5 Ng7 21. Qf2 Ne8 22. Rhg1 Qe7 (22... Ka8 $142) 23. Qf4+ (23. Nf4 $16) 23... Ka8 $14 24. Rg3 Nd6 25. b3 Ne4 26. Nxe4 dxe4 27. Nf2 Nb6 (27... Rhe8 $11 {keeps the balance.}) 28. Qxe4 $16 Qd6 29. Rdg1 (29. Qg4 $16) 29... Rhe8 30. Qd3 Nd5 31. Kb2 Nb4 32. Qc4 Nd5 33. Qd3 Nb4 34. Qc3 Nd5 {[%cal Bb4d5,Bd5c7,Bc7b5,Bb5d6,Bd6e4,Be4g3][%mdl 32]} 35. Qd2 c5 36. e4 {[%mdl 64] [#] Discovered Attack} Nc7 $1 37. d5 Nb5 38. a3 Qe5+ 39. Ka2 Nd6 40. Qc3 Qf4 41. Qe3 ({But not} 41. Qxc5 $2 Rc8 $19) 41... Qe5 $1 42. Ng4 (42. Qxc5 Rc8 $17) 42... Qe7 {White must now prevent ...h5.} 43. Re1 (43. Nxh6 Nxe4 44. h5 Nxg3 $19) (43. Qd3 $11) 43... Nxe4 $17 ({Reject} 43... Qxe4 $6 44. Qxe4 Nxe4 45. Rge3 $14) 44. Nf2 {[%cal Rf2e4]} Nxg3 45. Qxe7 Rxe7 46. Rxe7 Nxf5 $15 {[%mdl 4096] Endgame KRN-KRN} 47. Rf7 a6 48. Rxf6 Rxd5 ({Of course not} 48... Nxh4 $6 49. d6 $14) 49. Nh3 (49. Nd3 $17 {was necessary.}) 49... h5 ({Better is} 49... Rd2+ $19 50. Kb1 Nd4 51. Rxh6 Rd3 {[%mdl 64] Double Attack} 52. Rh8+ Ka7) 50. Nf4 Rd2+ 51. Kb1 {[#]} Nd4 $1 52. Nxh5 Nxb3 53. Ng3 (53. Rf3 $17 Nd4 54. Rh3) 53... c4 54. Rf8+ (54. Ne4 $17 Rd4 55. Nd6) 54... Ka7 $19 55. Rc8 (55. Ne4 $142 Rd4 56. Nc3) 55... b5 {Strongly threatening ...Kb7.} 56. Ne4 Rd4 57. Nc3 Rxh4 58. Nd5 Rh5 59. Rc7+ Kb8 60. Rd7 Nc5 61. Rd8+ Kb7 62. Kc2 Rh3 63. Rd6 (63. Nc3 {was the only chance.}) 63... Rxa3 64. Rb6+ Ka7 65. Rc6 Nd3 66. Rc7+ Kb8 {Hoping for ...Nb4+!} 67. Rc6 Ne5 68. Re6 Nf3 {...Nd4+ is the strong threat.} 69. Rf6 Nd4+ 70. Kb2 Rb3+ 71. Ka2 a5 72. Rf7 c3 {( -> ...Rb2+)} 73. Rf8+ Kb7 {Black mates.} 74. Rf7+ Kc6 75. Ne7+ Kc5 76. Rf2 b4 77. Ng6 Ra3+ 78. Kb1 c2+ 79. Kb2 Rb3+ 80. Ka2 c1=Q {[%csl Gb3][%cal Rc1b1]} 81. Rf5+ Nxf5 {Accuracy: White = 37%, Black = 76%.} 0-1

[Event "Norm Congress-IM 2019"]
[Site "Saint Louis"]
[Date "2019.05.19"]
[Round "7.2"]
[White "Rosen, Eric"]
[Black "Giannatos, Peter"]
[Result "1-0"]
[ECO "D31"]
[WhiteElo "2338"]
[BlackElo "2290"]
[Annotator "TA"]
[PlyCount "51"]
[EventDate "2019.05.16"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,51,26,-6,-13,-29,-31,-20,-18,-22,0,0,0,14,0,0,31,26,40,0,97,94,91,54,105,114,114,24,194,198,369,374,547,545,527,522,29990,29991,29991,29992]} 1. d4 d5 2. c4 e6 3. Nc3 Be7 4. cxd5 exd5 5. Bf4 c6 6. Qc2 Nf6 7. e3 Nbd7 8. Nf3 Nh5 {D35: Queen's Gambit Declined: Exchange Variation} 9. Bg3 Nxg3 10. hxg3 Nf6 {The position is equal.} 11. O-O-O $146 ({Predecessor:} 11. Bd3 h6 12. O-O-O Be6 13. Kb1 Qa5 14. Ne5 Ng4 15. Nxg4 Bxg4 {½-½ (102) Piket,J (2640)-Timman,J (2635) Wijk aan Zee 1995}) 11... Bg4 12. Bd3 {[%cal Rd3h7]} h6 13. Kb1 O-O 14. Rc1 c5 15. Ne5 Be6 16. f4 Ng4 (16... c4 $11 17. Be2 b5) 17. Nxg4 $16 Bxg4 18. Bf5 (18. Bh7+ {is interesting.} Kh8 19. Bf5 cxd4 20. exd4 Bxf5 21. Qxf5 Qd6 22. g4) 18... Bxf5 ({Black should play} 18... cxd4 $14 19. exd4 (19. Bxg4 dxc3 20. Qxc3 Qb6 $11) 19... Bxf5 20. Qxf5 Qd6) 19. Qxf5 cxd4 20. exd4 (20. Nxd5 $16 {And now Rc7 would win.} Qd6 21. e4 (21. exd4 Rad8 $14)) 20... Bf6 $2 (20... Qd6 $11) 21. Nxd5 $18 Bxd4 $2 (21... Qd6 {is a better defense.} 22. Nxf6+ (22. Rxh6 gxh6 23. Nxf6+ Kg7 $11) 22... Qxf6 23. Qxf6 gxf6 24. Rxh6 Kg7) 22. Rcd1 Bc5 {[#]} (22... Bxb2 {was worth a try.} 23. Kxb2 Qd6) 23. Rxh6 $1 {[%mdl 576] Deflection} gxh6 24. Nf6+ {[%mdl 64] Discovered Attack} Kg7 {[%cal Rd8d1]} 25. Nh5+ Kg8 26. Qg4+ {Accuracy: White = 65%, Black = 27%.} 1-0

[Event "Norm Congress-IM 2019"]
[Site "Saint Louis"]
[Date "2019.05.19"]
[Round "7.3"]
[White "Jacobson, Aaron"]
[Black "Grabinsky, Aaron"]
[Result "1/2-1/2"]
[ECO "B12"]
[WhiteElo "2311"]
[BlackElo "2338"]
[Annotator "TA"]
[PlyCount "153"]
[EventDate "2019.05.16"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,153,35,29,34,20,59,22,28,-9,29,-24,-24,-29,-25,-20,-14,-12,-19,-34,0,-17,6,-24,0,-28,-28,-29,-24,-28,-28,-63,-63,-63,-65,-77,-16,-19,-19,-16,-11,-24,-26,-20,0,0,0,0,0,-8,0,0,0,-11,0,-20,0,0,0,0,0,0,0,0,0,-41,-37,-62,-62,-87,-28,-69,-65,-267,-237,-172,-117,-518,-518,-495,-493,-998,-955,-1382,-1135,-1045,-776,-748,-725,-1375,-1365,-1300,-736,-5633,-5626,-2263,-421,-308,-308,-308,-308,-308,-308,-308,-308,-308,-308,-308,-130,-135,-143,-132,-39,-308,-308,-308,-308,-371,-325,-308,-8,-387,-406,-402,-364,-343,-176,-189,-131,-130,-138,-297,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 c6 2. d4 d5 3. e5 Bf5 4. Nf3 e6 5. Be2 Ne7 6. O-O Ng6 {B12: Caro-Kann: Advance Variation} (6... Bg6 7. Nbd2 Nf5 8. a4 Nd7 9. a5 h5 10. c3 Be7 11. Ne1 c5 12. Ndf3 a6 13. Nd3 h4 14. b4 cxd4 15. cxd4 {1-0 (41) Harikrishna,P (2725)-Tomashevsky,E (2705) St Petersburg 2018}) 7. a4 Nd7 8. a5 (8. Ne1 $5 {[%cal Rg2g4]}) 8... a6 $146 ({Predecessor:} 8... b5 9. Ne1 h5 10. Bd3 Bxd3 11. Nxd3 c5 12. c3 c4 13. Nf4 Nxf4 14. Bxf4 Qh4 {½-½ (31) Wiesner,M (2323)-Kreindl,H (2254) ICCF email 2011}) 9. Nbd2 f6 {[%cal Rf6e5]} 10. exf6 (10. Ne1 $142 $1) 10... Qxf6 $11 11. Nb3 Bd6 12. Bg5 Qf7 13. Nh4 O-O 14. Bh5 h6 15. Nxf5 Qxf5 16. Be3 Rae8 17. f4 (17. g3 {keeps more tension.} Nh4 18. f4 g6 19. Bg4 Qe4 20. Qe2) 17... Nf6 18. Bxg6 $1 Qxg6 19. Qd3 Qh5 20. Rf3 Ng4 21. h3 Nxe3 22. Qxe3 Qf5 ({Black should play} 22... g5 $1 $17 {[%cal Rd6f4]} 23. fxg5 Rxf3 24. Qxf3 Qxf3 25. gxf3 hxg5) 23. Qf2 $1 g5 24. fxg5 Qxg5 25. Re1 Rxf3 26. Qxf3 Qh4 27. Rf1 {White wants to mate with Qf7+.} Rf8 28. Qe2 Rxf1+ 29. Qxf1 Qe4 30. Qf2 Kg7 31. Kf1 Kg6 (31... Qg6 {looks sharper.} 32. Qe2 h5 33. Ke1 Qf5 34. Kd1 Kg6) 32. Qe2 Qxe2+ (32... Qf4+ {is more complex.} 33. Ke1 Kf6 34. Kd1 h5 35. c3 Qf5) 33. Kxe2 {[%mdl 4096] Endgame KB-KN} Kf5 34. Kf3 e5 35. g4+ Kf6 36. dxe5+ Kxe5 37. c3 c5 38. h4 Be7 39. h5 Kd6 (39... c4 $1 $17 {[%cal Rc4b3]} 40. Nd4 Bg5) 40. Kf4 Bg5+ 41. Kf5 $2 (41. Kg3 $15) 41... Be3 $19 42. Na1 Bc1 43. b4 $2 {[%mdl 8192]} (43. b3 $17 {nothing else works.}) 43... c4 $1 44. Nc2 {If only White now had time for Nd4....} Bd2 45. Kg6 (45. g5 $142 Bxg5 46. Nd4) 45... Ke5 46. Na3 Ke4 47. b5 Kd3 48. bxa6 bxa6 49. Nb5 Be3 50. Nc7 d4 51. Nxa6 Kxc3 52. Nc7 Kd2 (52... Kb3 $142 53. Nd5 Bf2) 53. Nd5 {intending a6.} c3 54. a6 c2 55. a7 c1=Q 56. a8=Q Qc2+ 57. Kg7 Bg5 $1 58. Qf8 Ke1 (58... d3 $1 $19 {White must now prevent ...Qc4.} 59. Qf2+ Kc1 60. Qg1+ Kb2 61. Qb6+ Qb3 62. Qd4+ Kb1) 59. Qb4+ $17 Qd2 60. Qb1+ Kf2 (60... Ke2 $1 $17 {aiming for ...d3.} 61. Qh1 Kf2 62. Qh2+ Kf3 $1 {[%mdl 512]} 63. Qh3+ Ke4 64. Qh1+ Ke5) 61. Qb3 $2 {[%mdl 8192]} ({Only move:} 61. Nb4 $1 $15) 61... Qe2 $19 62. Nb4 Qxg4 {And now ...Bd2+ would win.} 63. Qf7+ Kg3 64. Nd3 Kh4 $2 (64... Qe4 $19 65. Qf1 Kh4) 65. Kh7 $2 {[%mdl 8192]} (65. Ne5 $1 $11 {and White stays safe.} Qe4 66. Qf2+ Kxh5 67. Qf7+ Kh4 68. Qf2+ Kh3 69. Qf1+ Kg3 70. Qg1+ Kf4 71. Ng6+ Kf5 72. Qf1+ Kg4 73. Qg1+ Kh3 74. Qf1+ Kg3 75. Qg1+ Kh3 76. Qf1+ Kh2 77. Qf2+ Kh3 78. Qf1+) 65... Qe4+ 66. Qg6 Qe7+ 67. Kg8 Kg4 (67... Qd8+ $142 68. Kg7 Qe7+ 69. Kg8 Be3) 68. Nf2+ Kf3 (68... Kg3 $19 69. Qf5 Be3 70. Ne4+ Kh4) 69. Qf5+ $17 Ke2 70. Qc2+ $2 (70. Ne4 $17) 70... Kf1 $2 (70... Ke3 $19 {Threatens to win with ...Qe6+.} 71. Nd1+ Kf4 72. Qh2+ Kf5 73. Qf2+ Ke5 74. Qe2+ {[#]} Be3 $1 {[%mdl 512]}) 71. Ne4 $11 {[%csl Ge4][%cal Rc2f2] The position is equal.} Qe6+ 72. Kg7 {[%csl Ge4][%cal Rc2f2]} Qe5+ 73. Kg6 {[%csl Ge4][%cal Rc2f2]} Be3 {Strongly threatening ...Qe8+.} 74. Qd1+ Kg2 75. Qg4+ Kh1 (75... Kf1 $5) 76. Qh3+ Kg1 77. Qg4+ {Accuracy: White = 36%, Black = 55%.} 1/2-1/2

[Event "Norm Congress-IM 2019"]
[Site "Saint Louis"]
[Date "2019.05.19"]
[Round "7.4"]
[White "Wu, Rochelle"]
[Black "Torres Rosas, Luis Carlos"]
[Result "1/2-1/2"]
[ECO "E83"]
[WhiteElo "2174"]
[BlackElo "2320"]
[Annotator "TA"]
[PlyCount "96"]
[EventDate "2019.05.16"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,96,16,19,0,66,31,77,-72,-70,-56,-56,-89,0,15,22,21,26,0,13,19,19,31,49,0,0,-16,0,-40,-25,-34,-34,-66,-11,-35,-27,-35,8,9,60,11,16,11,43,-96,-97,-97,-104,-97,-16,-16,-12,-163,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. c4 g6 3. f3 Bg7 4. e4 d6 5. Nc3 O-O 6. Be3 Nc6 7. Nge2 a6 8. d5 Na5 9. Ng3 c5 $1 10. Be2 {E83: King's Indian: Sämisch Panno (6...Nc6): Lines without either Nge2 or Qd2} Nd7 (10... Bd7 $11) 11. Qc2 (11. Rc1 b5 12. cxb5 axb5 13. Bxb5 Ne5 14. O-O Nac4 15. Bg5 Bd7 16. Bxd7 Qxd7 17. Qe2 Nxb2 18. Qxb2 {1-0 (55) Svidler,P (2747)-Radjabov,T (2793) London 2013}) 11... Ne5 12. Nd1 $146 (12. b3 $16 {is necessary to keep the advantage.}) ({Predecessor:} 12. b3 Qe8 13. O-O f5 14. f4 Ng4 15. Bxg4 fxg4 16. Rac1 b5 17. Qd3 Rb8 {0-1 (62) Skacelik,P (2265)-Mrva,M (2415) Pardubice 1998}) 12... b5 $1 $17 13. cxb5 axb5 14. Bxb5 {[#]} Ba6 ({Better is} 14... Qb6 $1 $17 {[%cal Rb6b5]} 15. a4 Ba6) 15. Bxa6 $11 Rxa6 16. O-O Qa8 17. Nc3 Rb8 18. Rab1 Nac4 19. Bc1 Nb6 20. Nge2 (20. b3 {seems wilder.} c4 21. Be3 Nd3 22. bxc4 Ne5 23. c5) 20... Na4 21. Nxa4 Rxa4 22. Nc3 Rab4 23. b3 $1 c4 24. Bd2 Qa6 (24... Rc8 $15) 25. Nd1 cxb3 26. axb3 R4b7 27. Nf2 Rb5 (27... Qb6 $11) 28. b4 Rc8 $1 {[%cal Rc8c2]} 29. Qb3 Nc4 30. Bc3 {[#]} (30. Bf4 $14 {keeps the upper hand.}) 30... Na5 $1 $17 {[%cal Ra5b3][%mdl 64] Pin} 31. Qa4 {[%mdl 64] Strongly threatening Bxg7. Pin} Bxc3 32. bxa5 Rxb1 (32... Rxa5 $17 33. Qd1 Ra3) 33. Rxb1 $11 Qxa5 34. Qd7 $2 (34. Qxa5 $11 {and White has nothing to worry.} Bxa5 35. Nd3) 34... Qc7 $2 ({Black should try} 34... Ra8 $19 {White must now prevent ...Bd4.} 35. Qb7 Bd4) 35. Qxc7 {The position is equal.} Rxc7 {[%mdl 4096] Endgame KRB-KRN} 36. Rc1 Ba5 37. Rxc7 Bxc7 {KB-KN} 38. Nd3 Bb6+ 39. Kf1 Kf8 40. Ke2 Ke8 41. Nb4 Kd7 42. Kd3 Bg1 43. h3 Bc5 44. Na6 Ba3 45. Nb8+ Kc7 (45... Kc8 $5 46. Nc6 $8 e6 $11) 46. Nc6 Kd7 47. Kc4 Bc1 48. Kb5 Be3 {Accuracy: White = 38%, Black = 52%.} 1/2-1/2

[Event "Norm Congress-IM 2019"]
[Site "Saint Louis"]
[Date "2019.05.19"]
[Round "7.5"]
[White "Gauri, Shankar"]
[Black "Ezra Paul Chambers"]
[Result "1-0"]
[ECO "A05"]
[WhiteElo "2375"]
[BlackElo "2241"]
[Annotator "TA"]
[PlyCount "43"]
[EventDate "2019.05.16"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,43,40,24,29,31,43,32,36,41,25,37,70,-18,0,-20,-17,-35,-30,-17,27,18,22,23,461,462,758,485,512,0]} 1. Nf3 Nf6 2. c4 c6 3. Nc3 d5 4. e3 e6 5. b3 Nbd7 6. Qc2 a6 7. d4 Bd6 8. Bd3 O-O 9. O-O e5 {[#] And now ...e4 would win. D46: Semi-Slav: 5 e3 Nbd7 6 Bd3, Black avoids the Meran} 10. cxd5 cxd5 {White must now prevent ...e4.} 11. e4 exd4 {White is slightly better.} (11... Qc7 12. Nxd5 Nxd5 13. exd5 Qxc2 14. Bxc2 exd4 15. Bb2 Nf6 16. Nxd4 Be5 17. Rad1 {0-1 (30) Wang,Y (2721)-Bu,X (2712) Zaozhuang 2015}) 12. Nxd5 Nxd5 13. exd5 {aiming for Bg5.} Nf6 {[#]} 14. Bg5 $146 (14. Bb2 $14) ({Predecessor:} 14. h3 Qc7 15. Rd1 Qxc2 16. Bxc2 Bb4 17. Rb1 Rd8 18. Bg5 Rxd5 19. Bxf6 gxf6 20. Rxd4 Rxd4 {½-½ (20) Sadowski,M (2553)-Millstone,M (2479) ICCF email 2009}) 14... h6 $11 15. Bh4 Bg4 16. Be2 Bxf3 17. Bxf3 Bb4 (17... g5 $5 {[%cal Rg5h4]} 18. Bg3 Bxg3 19. hxg3 Re8 $11) 18. Rad1 Bc3 19. d6 Qxd6 $2 {[%mdl 8192] [#]} (19... Rb8 $11) 20. Qxc3 $1 $18 {[%mdl 576] Pin. White is clearly winning.} Ra7 (20... Qxh2+ $142 21. Kxh2 dxc3) (20... dxc3 21. Rxd6) 21. Qc2 Raa8 22. Qc3 $2 {[%mdl 32768] Accuracy: White = 26%, Black = 40%. . Loss on time!?} ({White should try} 22. Bxb7 $18 Rad8 23. Qc4) 1-0

[Event "Norm Congress-IM 2019"]
[Site "Saint Louis"]
[Date "2019.05.20"]
[Round "8.1"]
[White "Kiewra, Keaton"]
[Black "Ezra Paul Chambers"]
[Result "1/2-1/2"]
[ECO "D45"]
[WhiteElo "2375"]
[BlackElo "2241"]
[Annotator "TA"]
[PlyCount "44"]
[EventDate "2019.05.16"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,44,39,34,37,17,40,34,47,42,40,40,44,40,43,36,41,23,34,20,25,-9,-11,-11,0,-7,0,-26,-26,-20,-10,-6,-6,-29,-29]} 1. Nf3 d5 2. e3 Nf6 3. c4 c6 4. Nc3 a6 5. d4 e6 6. Bd3 Nbd7 7. e4 dxe4 {D46: Semi-Slav: 5 e3 Nbd7 6 Bd3, Black avoids the Meran} (7... dxc4 8. Bxc4 b5 9. Bb3 b4 10. e5 bxc3 11. exf6 cxb2 12. fxg7 Bxg7 13. Bxb2 c5 14. O-O Bb7 15. Rb1 cxd4 16. Nxd4 {1-0 (52) Kozul,Z (2583)-Solak,D (2630) Neum 2008}) 8. Nxe4 Bb4+ 9. Bd2 Bxd2+ {White is slightly better.} 10. Qxd2 O-O 11. O-O Nxe4 12. Bxe4 Qc7 $146 ({Predecessor:} 12... Qf6 13. Rfe1 c5 14. d5 Nb6 15. Qc2 {0-1 (39) Horton,J (2140)-Franklin,M (2215) Sunningdale 2007}) 13. Qc2 h6 14. Rfe1 c5 15. dxc5 Nxc5 16. Ne5 Nxe4 17. Qxe4 Bd7 18. Rad1 Rad8 19. Rd4 Ba4 20. b3 {[#] Strongly threatening Rxd8.} Rxd4 21. Qxd4 Rd8 22. Qe4 Be8 {Accuracy: White = 54%, Black = 68%.} 1/2-1/2

[Event "Norm Congress-IM 2019"]
[Site "Saint Louis"]
[Date "2019.05.20"]
[Round "8.2"]
[White "Torres Rosas, Luis Carlos"]
[Black "Gauri, Shankar"]
[Result "1/2-1/2"]
[ECO "E12"]
[WhiteElo "2320"]
[BlackElo "2375"]
[Annotator "TA"]
[PlyCount "58"]
[EventDate "2019.05.16"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,58,0,0,0,0,-15,2,8,8,0,0,0,13,0,10,0,16,9,21,6,13,12,19,0,19,-9,25,22,24,14,17,0,60,26,25,13,105,0,3,10,3,0,0,0,0,-81,-65]} 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 Bb7 5. Nc3 d5 6. Bg5 Be7 7. Qa4+ c6 8. cxd5 {E12: Queen's Indian: Unusual White 4th moves, 4 a3, 4 Nc3 Bb7 5 a3 and 4 Nc3 Bb7} Nxd5 9. Bxe7 Qxe7 10. Nxd5 {The position is equal.} exd5 11. e3 O-O 12. Be2 (12. Rc1 c5 13. Be2 Nd7 14. O-O Rfd8 15. Rfd1 a5 {1-0 (34) Mamedyarov,S (2817)-Korobov,A (2698) St Petersburg 2018}) 12... Nd7 13. O-O a5 14. Rac1 Rfe8 $146 ({Predecessor:} 14... f5 15. Rfe1 Qf6 16. g3 g5 17. Qc2 f4 18. exf4 gxf4 19. Qd2 Rae8 {1-0 (31) Finy,M (1889)-Toronyi,D (2064) Hungary 2010}) 15. Rfe1 Qd6 16. Bd3 g6 17. Nd2 Re6 18. g3 Kg7 19. Nf3 Rae8 20. Qb3 Ra8 21. h4 Rf6 22. Ng5 a4 (22... c5 $11 23. Bb5 Rc8) 23. Qc3 {Black must now prevent e4.} (23. Qd1 $5 {[%cal Re3e4]}) 23... c5 $1 24. Bb5 Bc6 {[#]} (24... h6 $11 {keeps the balance.}) 25. e4 (25. Bxc6 $1 $16 Qxc6 26. e4) 25... Bxb5 $11 26. e5 {[%mdl 64] Double Attack} cxd4 27. exf6+ Qxf6 28. Qb4 Bc4 $1 29. Qe7 (29. Re7 $11 Ne5 30. Rxe5 Qxe5 31. Re1) 29... Nc5 {Accuracy: White = 49%, Black = 40%.} 1/2-1/2

[Event "Norm Congress-IM 2019"]
[Site "Saint Louis"]
[Date "2019.05.20"]
[Round "8.3"]
[White "Grabinsky, Aaron"]
[Black "Wu, Rochelle"]
[Result "0-1"]
[ECO "A00"]
[WhiteElo "2338"]
[BlackElo "2174"]
[Annotator "TA"]
[PlyCount "138"]
[EventDate "2019.05.16"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,138,38,34,47,38,43,36,43,23,39,41,64,47,93,96,96,97,87,100,111,58,118,115,132,132,131,118,125,107,107,98,104,100,103,103,104,101,111,106,105,104,104,95,95,92,100,100,109,108,119,105,112,112,112,111,120,116,115,103,108,34,39,0,29,26,38,8,8,8,8,0,0,2,0,0,0,0,0,0,0,0,0,0,0,-7,0,0,0,-9,-9,-498,-509,-459,-418,-1479,-1470,-1033,-1111,-918,-916,-466,-436,-237,-71,-29962,-29964,-29965,-29966,-29966,-12846,-12841,-12788,-191,-151,-151,-151,-29971,-8,-8,0,-29971,-29972,-29974,-29974,-29974,-29974]} 1. e3 d5 2. c4 c6 3. Qc2 Nf6 4. Nf3 g6 5. b3 Bg7 6. Bb2 O-O 7. Be2 Nbd7 8. O-O Re8 {A12: English Opening: 1...c6 with b3 by White} 9. d4 (9. cxd5 cxd5 10. Rc1 a6 11. a4 Nf8 12. b4 {½-½ (34) Kurajica,B (2522)-Jovanic,O (2515) Bjelovar 2019}) 9... Ne4 10. Nc3 Ndf6 {White is slightly better.} 11. Bd3 {[%cal Rc3e4]} Nxc3 12. Bxc3 Nd7 13. Rad1 $146 ({Predecessor:} 13. Rac1 e5 14. cxd5 cxd5 15. Bb5 e4 16. Ne5 a6 17. Bxd7 Bxd7 {½-½ (29) Van Scheltinga,T (2325)-Van der Veen,J Eindhoven 1983}) 13... e5 14. dxe5 Nxe5 15. Bxe5 Bxe5 16. cxd5 Bg4 17. Be2 (17. Be4 $16 c5 18. h3 (18. Qxc5 Bd6 $11) 18... Bxf3 19. Bxf3) 17... Bxf3 ({Better is} 17... cxd5 $14 18. Qc5 (18. Nxe5 Bxe2 19. Qxe2 Rxe5 $14) 18... Qb8) 18. Bxf3 $16 Qh4 {[%csl Ge5][%cal Rh4h2]} 19. g3 Qf6 20. Kg2 {[%cal Rd5c6]} cxd5 21. Rxd5 Rac8 22. Qd2 Rc7 23. Rd7 Re7 24. Rd8+ Kg7 25. Rd1 Qe6 26. Bd5 Qb6 27. Bc4 Bf6 28. Kg1 Qc6 29. Rd6 Qc5 30. Qe2 Be5 31. R6d5 Qb6 32. Kg2 Qc6 33. e4 a6 34. a4 Rcd7 35. f4 Bc7 36. Qb2+ f6 37. Qa3 ({White should play} 37. Qd2 $16 {[%cal Rd5d7]} Rd6 38. Qd3 (38. Rxd6 Qxe4+ 39. Kh3 Bxd6 $11)) 37... Bd6 $1 $14 {[%cal Rd6a3]} 38. Qb2 Rxe4 39. Kh3 {Hoping for Qd2.} Rd8 40. Qd2 {[%cal Rd5d6]} Bb4 41. Qd3 ({Don't blunder} 41. Qxb4 $2 Rxd5 42. Rxd5 Qxd5 $19) 41... Rxd5 42. Bxd5 Qc8+ 43. Kg2 Re7 44. Rf1 Qc5 45. f5 Re3 46. Qd1 Qc7 47. fxg6 hxg6 48. Qd4 Re2+ 49. Kh1 Bc3 50. Qg4 Re5 51. Be4 f5 $40 {[%mdl 128] Black has some attack.} 52. Rxf5 $2 {[%mdl 8192] [#]} (52. Qf4 $11 {and White has nothing to worry.}) 52... Rxe4 $1 $19 {[%mdl 512]} 53. Qxe4 {Rg5! is the strong threat.} gxf5 54. Qxf5 (54. Qf3 $142 Qc8 55. Kg2) 54... Qc6+ 55. Kg1 Bd4+ 56. Kf1 Qf6 $1 {[%cal Rf6f5]} 57. Qxf6+ Kxf6 {[%mdl 4096] Endgame KB-KP} 58. Ke2 (58. Ke1 {keeps fighting.} Kg5 59. h3) 58... a5 $2 (58... Ke5 $19 {has better winning chances. aiming for ...Ke4.} 59. Kf3 Kf5) 59. h4 $2 {[%mdl 8192]} (59. Kd3 $17 Bc5 60. Kc4) 59... Kg6 60. g4 Bf6 61. g5 Bg7 (61... Bc3 $142 62. Kf3 Kh5 63. Ke2 b6 64. Kd3 Be1 65. Kc4 Bxh4 66. g6 Kxg6 67. Kd5 Kf5 68. Kc4 Be7 69. Kd4 Bd6 70. Ke3 Bc5+ 71. Kd3 Ke5 72. Kc3 Kd5 73. Kd3 Bd6 74. Ke3 Kc5 75. Ke4 Kb4 76. Kd5 Bf8 77. Ke6 Kxb3 78. Kd5 Kxa4 79. Kc4 b5+ 80. Kd3 b4 81. Ke2 b3 82. Kd2 b2 83. Kc2 Ka3 84. Kb1 Bh6 85. Kc2 b1=Q+ $1 {[%mdl 512]} 86. Kxb1 Kb3 87. Ka1 a4 88. Kb1 a3 89. Ka1 Bg5 90. Kb1 a2+ 91. Ka1 Bf6#) 62. Kd3 Bf8 63. Kc4 {[#]} b6 $1 64. Kb5 Bc5 65. Kc4 $2 (65. b4 $17 axb4 66. Kc4) 65... Kh5 $2 (65... Bf2 {mates} 66. Kb5 Bxh4 67. Kxb6 Be1 68. Kb5 Kxg5 69. Kc4 Bb4 70. Kd3 Kf4 71. Kd4 Bf8 72. Kd3 Bd6 73. Kd4 Bb4 74. Kd5 Ke3 75. Kc4 Ke2 76. Kd5 Kd3 77. Kc6 Kc3 78. Kb6 Kxb3 79. Kb5 Ka3 80. Kc6 Kxa4 81. Kd7 Kb3 82. Ke6 a4 83. Kd5 a3 84. Ke5 a2 85. Kd5 a1=Q 86. Ke6 Qa5 87. Kf6 Qd5 88. Kg6 Be7 89. Kh7 Qf7+ 90. Kh6 Qg8 91. Kh5 Qg5#) 66. Kb5 $1 $11 Kg6 $2 {[%mdl 8192]} (66... Bd6 $11 67. Kxb6 Bb4) 67. Kc4 Bf2 {Black mates.} 68. Kb5 Bxh4 69. Kxb6 Be1 {Accuracy: White = 43%, Black = 55%.} 0-1

[Event "Norm Congress-IM 2019"]
[Site "Saint Louis"]
[Date "2019.05.20"]
[Round "8.4"]
[White "Giannatos, Peter"]
[Black "Jacobson, Aaron"]
[Result "1-0"]
[ECO "A06"]
[WhiteElo "2290"]
[BlackElo "2311"]
[Annotator "TA"]
[PlyCount "101"]
[EventDate "2019.05.16"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,121,31,27,41,31,33,41,0,0,-8,65,54,52,49,45,56,54,36,39,43,46,46,43,27,47,41,32,30,81,93,91,89,127,108,150,124,127,121,116,115,114,114,114,84,109,103,100,110,204,102,118,76,61,39,47,53,79,34,154,145,168,162,157,146,224,235,259,269,263,238,237,189,223,180,6179,12457,6307,6641,29960,29965,5501,6251,29945,5397,29970,29971,29971,29972,29973,29974,29974,29973,29974,29973,29973,29974,29974,29975,29975,29976,29976,29977,29977,29978,29980,29981,29981,29982,29982,29983,29984,29984,29993,29994]} 1. Nf3 d5 2. g3 g6 3. Bg2 Bg7 4. d4 Nh6 5. O-O ({Predecessor:} 5. Nbd2 Nf5 6. c3 Nd6 {½-½ (35) Gonda,L (2528)-Schmidt,P (2398) Austria 2018}) 5... Nf5 $146 (5... O-O 6. Nbd2 Nf5 7. c3 Nd6 8. Re1 Bf5 9. Nh4 c6 10. Nxf5 gxf5 11. Nb3 Nd7 12. Bf4 Nf6 13. Nc5 b6 {1-0 (40) Pantsulaia,L (2587)-Short,N (2659) Abu Dhabi 2018}) 6. c3 {D02: 1 d4 d5 2 Nf3 sidelines, including 2...Nf6 3 g3 and 2...Nf6 3 Bf4} Nd6 7. Nbd2 Nd7 8. e4 {White is slightly better.} dxe4 9. Ng5 Nf6 ({Black should play} 9... e3 $11 10. fxe3 O-O) 10. Ndxe4 $14 Nfxe4 11. Nxe4 Nxe4 12. Bxe4 O-O 13. Bf4 c6 14. Qb3 Qb6 15. d5 Bd7 16. Rfe1 Rfe8 17. Rad1 {[%cal Ba1d1,Bd1d2,Bd2d7,Bd7c7][%mdl 32]} e5 18. Be3 Qc7 (18... Qxb3 $11 {remains equal.} 19. axb3 Reb8) 19. Rd2 $16 b6 20. Red1 cxd5 21. Bxd5 Be6 22. Bxe6 Rxe6 23. Rd7 Qc6 24. Qd5 Qxd5 25. R1xd5 Kf8 26. c4 Ke8 27. Bg5 {Threatening mate with Rd8+.} Kf8 28. Rc7 {Rdd7! is the strong threat.} e4 {[#]} (28... Bf6 $16) 29. b3 (29. Rdd7 $1 $18 {[%mdl 512]} Be5 30. Rxf7+ Kg8 31. Rcd7 (31. Rxh7 Bxc7 32. Rxc7 Re5 $14) (31. Rxa7 Rxa7 32. Rxa7 Bxb2 $16)) 29... Bf6 30. Bxf6 Rxf6 {[%mdl 4096] Endgame KRR-KRR} 31. Kf1 a5 32. Ke2 h5 33. Rcd7 Rc8 ({Black should try} 33... Rf3 $14) 34. R7d6 Rc6 {[#]} 35. Rxf6 $1 Rxf6 $18 {KR-KR} 36. Re5 Rf3 (36... h4 $16 {was worth a try.} 37. gxh4 (37. Rxe4 hxg3 38. fxg3 Rc6 $16) 37... Rf3) 37. Rxe4 Rf5 38. f4 Rf6 39. Re5 Rd6 40. Ke3 f6 41. Rd5 Rxd5 $2 (41... Re6+ 42. Kf3 f5) 42. cxd5 {KP-KP} Ke7 43. Kd4 Kd6 44. a4 Kd7 45. Kc4 Kd6 46. h3 g5 47. h4 {White mates.} g4 48. Kd4 f5 49. Kc4 Kd7 50. Kb5 Kc7 {[#]} 51. b4 {Played: d5-d6} 1-0

[Event "Norm Congress-IM 2019"]
[Site "Saint Louis"]
[Date "2019.05.20"]
[Round "8.5"]
[White "Chiku-Ratte, Olivier-Kenta"]
[Black "Rosen, Eric"]
[Result "0-1"]
[ECO "E45"]
[WhiteElo "2378"]
[BlackElo "2338"]
[Annotator "TA"]
[PlyCount "64"]
[EventDate "2019.05.16"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,74,14,9,-10,6,4,12,0,6,0,10,0,0,-30,9,-60,-60,-72,-64,-75,-78,-92,-64,-59,-48,-52,-47,-74,-47,-122,-88,-152,-151,-139,-108,-128,-44,-168,-161,-306,-307,-404,-398,-479,-473,-1041,-1041,-985,-831,-1219,-969,-1206,-1150,-29990,-29988,-29988,-29989,-29995,-29996,-29996,-29997,-29997,-29998,-29998,-29999]} 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Nge2 Ba6 6. Ng3 O-O 7. Bd3 {E45: Nimzo-Indian: Rubinstein: 4...b6 5 Ne2 Ba6} d5 8. cxd5 Bxd3 9. Qxd3 {The position is equal.} exd5 10. O-O Re8 11. f3 c5 $146 ({Predecessor:} 11... Bf8 12. Kh1 Nc6 13. Bd2 Nb4 14. Qb1 c5 {0-1 (40) Szuveges,G (2203)-Dgebuadze,A (2540) Helmondsee 2000}) 12. Nce2 Nc6 (12... c4 $5 {[%cal Rc4d3]} 13. Qf5 Qd7 $11) 13. a3 (13. b3 $1 $11) 13... c4 $15 14. Qc2 Bd6 15. Nf5 Bf8 16. Nc3 a6 17. g4 b5 18. g5 Nh5 $1 19. Qg2 g6 20. Qg4 (20. Ng3 $15) 20... Ra7 21. Ng3 ({Better is} 21. Bd2) 21... Nxg3 $17 22. hxg3 Bg7 23. Kg2 {[#]} Ne7 (23... Na5 $1 $17 24. Rb1 Nb3) 24. f4 (24. Bd2 $15) 24... Nf5 $19 {[%cal Be7f5,Bf5d4,Bd4b3][%mdl 96] Discovered Attack} 25. Qf3 {[#]} (25. Nd1 $142) 25... Rae7 $1 26. Nd1 Qd7 27. Rh1 {[#] intending g4.} Bxd4 $1 {[%mdl 512]} 28. exd4 (28. Re1 $142 f6 29. gxf6 Bxf6 30. Nc3 Bxc3 31. bxc3) 28... Nxd4 29. Qc3 Nb3 30. Rb1 Qf5 31. Nf2 Re2 32. Qf6 {[#]} Qe4+ {Played: Re2xf2} 0-1

[Event "Norm Congress-IM 2019"]
[Site "Saint Louis"]
[Date "2019.05.21"]
[Round "9.1"]
[White "Rosen, Eric"]
[Black "Kiewra, Keaton"]
[Result "1/2-1/2"]
[ECO "B23"]
[WhiteElo "2338"]
[BlackElo "2375"]
[Annotator "TA"]
[PlyCount "108"]
[EventDate "2019.05.16"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,108,21,25,0,15,11,11,11,34,14,9,15,8,0,8,13,15,20,30,4,12,0,0,-2,0,0,0,0,0,0,11,0,12,12,10,0,14,23,25,-30,-42,-327,-317,-355,-358,-338,-329,-342,-311,-330,-309,-340,-286,-353,-192,-179,-194,-193,-188,-189,-190,-176,-139,-228,-198,-206,-199,-209,-200,-195,-203,-264,-260,-260,-77,-77,-65,-65,-65,-98,-41,-75,-12,-13,-16,-23,-23,-40,-42,-42,-8,-8,-12,-16,0,-3,0,-110,-105]} 1. e4 c5 2. Nc3 e6 3. g3 Nc6 4. Bg2 Nf6 5. Nge2 Be7 6. O-O O-O 7. h3 {B24: Closed Sicilian: 3 g3 sidelines} d6 8. d4 cxd4 9. Nxd4 {The position is equal.} Qc7 10. Be3 a6 11. Nxc6 bxc6 12. Na4 Rb8 13. c4 c5 14. b3 Bb7 15. Nc3 {[#]} Nd7 $146 ({Predecessor:} 15... Bc6 16. Qd3 Ba8 17. Rad1 Nd7 18. f4 {1-0 (36) Matlakov,M (2700)-Artemiev,V (2709) St Petersburg 2018}) 16. Qc2 Ne5 17. Rad1 Nc6 18. f4 Bf6 19. Ne2 Rfe8 20. g4 g6 21. g5 Bg7 22. h4 a5 23. Qd2 Rbd8 24. h5 a4 25. f5 (25. h6 $142 Bh8 26. Nc3 (26. bxa4 Na5 $11)) 25... exf5 26. Nf4 $2 {[%mdl 8192] [#]} ({White should try} 26. exf5 $15 gxh5 27. Nf4 (27. f6 Bf8 $11)) 26... Nd4 $1 $19 (26... fxe4 27. h6 $11) 27. exf5 Nxf5 28. Bf2 Bxg2 29. Nxg2 axb3 ({Don't play} 29... gxh5 30. Kh1 $19) 30. axb3 Qb7 ({Don't take} 30... gxh5 31. Kh1 $19) 31. Qd3 Re4 32. Bxc5 {[#]} Rg4 $1 {[%mdl 512]} 33. Qf3 Qxf3 $40 {[%mdl 128] Black is out for blood.} 34. Rxf3 Rxg5 {aiming for ...Nh4.} 35. hxg6 hxg6 {...Nh4 is the strong threat.} 36. Bf2 Rb8 37. Rb1 (37. Rh3 $17) 37... Be5 38. Kf1 Rg4 39. Rd1 Nd4 40. Bxd4 Bxd4 ({But not} 40... Rxd4 41. Rxd4 Bxd4 42. Nf4 $15) 41. Nf4 Rg1+ 42. Ke2 Rxd1 $2 (42... Re8+ $19 {and Black stays clearly on top.} 43. Kd2 {[#]} Re3 $1 {[%mdl 512]}) 43. Kxd1 {[%mdl 4096] Endgame KRB-KRN} Kg7 44. Nd5 g5 45. Ne7 {Strongly threatening Nf5+.} Bc5 (45... Bf6 $17 46. Nd5 Be5) 46. Kc2 $15 f6 (46... Rb7 $17 47. Nd5 Kg6 48. Rf6+ Kh5) 47. Nd5 $11 Bd4 48. b4 Be5 49. b5 g4 50. Rf1 $1 Kg6 51. Kd3 Kg5 52. Ke4 Rc8 53. Rf5+ Kh4 54. Kd3 (54. Ne3 $1 $11 {was the only way to keep the balance.}) 54... g3 {Accuracy: White = 43%, Black = 46%.} 1/2-1/2

[Event "Norm Congress-IM 2019"]
[Site "Saint Louis"]
[Date "2019.05.21"]
[Round "9.2"]
[White "Jacobson, Aaron"]
[Black "Chiku-Ratte, Olivier-Kenta"]
[Result "0-1"]
[ECO "B75"]
[WhiteElo "2311"]
[BlackElo "2378"]
[Annotator "TA"]
[PlyCount "102"]
[EventDate "2019.05.16"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,102,60,75,77,65,54,85,84,95,94,162,21,25,18,18,-44,34,41,41,47,83,73,174,168,133,36,53,45,54,-54,-54,-54,-39,-46,-45,-50,0,-765,-436,-1066,-1067,-1048,-727,-736,-695,-736,-731,-731,-725,-699,-704,-676,-662,-1441,-441,-387,0,-483,0,-398,-388,-1570,-77,-74,-77,-427,-435,-1698,-1552,-1034,-1325,-1208,-1043,-29987,-29988,-29988,-29989,-29989,-705,-681,-666,-774,-772,-1056,-1055,-1213,-894,-1507,-683]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 a6 8. Qd2 Nbd7 {[%cal Bb8d7,Bd7e5,Be5c4][%mdl 32]} 9. Be2 {B75: Sicilian Dragon: Yugoslav Attack, Miscellaneous} (9. a4 Ne5 10. Be2 Bd7 11. a5 Rc8 12. g4 Nc4 13. Bxc4 Rxc4 14. g5 Nh5 15. Nd5 O-O 16. Nb6 Rc7 {0-1 (67) Bacrot,E (2725)-Adhiban,B (2655) Riadh 2017}) 9... h5 10. O-O Ne5 11. Rad1 {White is better.} O-O $146 ({Predecessor:} 11... Bd7 12. Nd5 Nxd5 13. exd5 Qc7 14. Rfe1 Nc4 15. Bxc4 Qxc4 16. Bg5 {1-0 (42) Hirneise,J (2370)-Schnabel,B (2146) Heusenstamm 2018}) 12. h3 b5 (12... Qc7 $16 {was necessary.}) 13. Qe1 (13. f4 $18) 13... Qc7 $11 14. a4 Nc4 15. Bc1 (15. Bxc4 $1 $11 bxc4 16. Bg5) 15... b4 ({Better is} 15... e5 $15 16. Nb3 b4) 16. Na2 $14 a5 17. b3 Nb6 18. c3 d5 (18... bxc3 $16 19. Be3 (19. Qxc3 Qxc3 20. Nxc3 Bb7 $11) (19. Nxc3 Bb7 $14) 19... Bb7) 19. cxb4 $18 axb4 20. Qxb4 (20. Be3 $16) 20... dxe4 $14 21. fxe4 Bxh3 $1 {Hoping for ...Qg3!} 22. gxh3 (22. Qc3 $14 Qxc3 23. Nxc3) 22... Qg3+ $15 {[%mdl 64] [#] Double Attack} 23. Kh1 Qxh3+ 24. Kg1 Qg3+ 25. Kh1 {And now Rf3 would win.} Nxe4 26. Qxb6 $4 {[%mdl 8192]} (26. Nc6 $11 Qh3+ 27. Kg1 Qg3+ 28. Kh1 Qh4+ 29. Kg1 Qg3+ 30. Kh1) 26... Rab8 27. Qc6 (27. Qa5 $142 Be5 28. Qxe5 Qxe5 29. Bf4) 27... Be5 $19 {[%csl Ge5][%cal Rg3h2]} 28. Nf3 Rxb3 {( -> ...Qh3+)} 29. Bd3 Qh3+ 30. Kg1 Qg4+ 31. Kh1 Ng3+ {[%mdl 64] Double Attack} 32. Kg2 Nf5+ 33. Kf2 Bg3+ 34. Kg2 {[#] Bxf5 is the strong threat.} Bb8+ (34... Rb2+ $142 $1 {[%mdl 512]} 35. Bc2 (35. Bxb2 Ne3+) 35... Bb8+ 36. Kf2 Ba7+ 37. Ke2 Qg2+ 38. Ke1 Rxc2 39. Qxc2 Qxc2) 35. Kf2 Bg3+ $2 (35... Rd8 $19 36. Qc2 (36. Bxf5 $2 Ba7+ 37. Ke1 Qg3+ 38. Ke2 Qg2+ 39. Ke1 Rxd1+ {[%mdl 64] Overworked Piece} 40. Kxd1 Qxf1+ 41. Kc2 Rxf3 $19) 36... Bg3+ 37. Kg1 Bc7+ 38. Qg2 Rdxd3 39. Qxg4 hxg4 40. Rxd3 Rxd3) 36. Kg1 $2 {[%mdl 8192]} (36. Kg2 $11 Rb2+ {[%mdl 64] Double Attack} 37. Bc2 (37. Bxb2 $2 {is a self mate.} Ne3+ {[%mdl 64] Double Attack} 38. Kh1 Qh3+ {[%mdl 64] Double Attack} 39. Kg1 Qg2#) 37... Bb8+ 38. Kf2 Ba7+ 39. Ke1 Qg3+ 40. Ke2 Qg2+ 41. Ke1 Rxc2 42. Qxc2 {[%mdl 64] Remove Defender} Qxc2 43. Rd2) 36... Bb8+ 37. Kf2 Rd8 38. Nc3 $2 (38. Bxf5 Ba7+ 39. Ke2 (39. Ke1 $2 Qg3+ 40. Ke2 Qg2+ 41. Ke1 Rxd1+ {[%mdl 64] Overworked Piece} 42. Kxd1 Qxf1+ 43. Kc2 Rxf3 $19) 39... Qg2+ 40. Ke1 Rxd1+ {[%mdl 64] Overworked Piece} 41. Kxd1 Qxf1+ 42. Ne1 Qxf5 43. Nc3) 38... Ba7+ $2 (38... Rb2+ $19 {has better winning chances.} 39. Rd2 Rxd2+ 40. Bxd2 Bg3+ 41. Kg1 Rxd3) 39. Ke1 $17 Qg3+ 40. Kd2 $4 {[%mdl 8192]} (40. Ke2 $17) 40... Ne3 $19 {[%mdl 64] Strongly threatening ...Qg2+. Double Attack} 41. Rde1 (41. Ne4 $142 Rbxd3+ 42. Ke2 Nxd1 43. Nxg3 Nc3+ 44. Qxc3 Rxc3 45. Re1) 41... Qg2+ {[%mdl 64] Double Attack} 42. Re2 Qxf1 43. Ne1 Qf4 44. Nf3 Nd5+ {[%mdl 64] Discovered Attack} 45. Kc2 Rxc3+ 46. Qxc3 Qxc1+ (46... Nxc3 $2 47. Bxf4 Nxe2 48. Bxe2 $19) (46... Qxa4+ $142 47. Kd2 Nxc3 48. Kxc3 Rc8+ 49. Kb2 Bd4+ 50. Nxd4 Qxd4+ {[%mdl 64] Double Attack} 51. Ka2 Qxd3 52. Rxe7 Ra8+ 53. Kb2 Rb8+ 54. Rb7 Rxb7+ 55. Ka2 Qc2+ {[%mdl 64] Double Attack} 56. Ka3 Qb3#) 47. Kxc1 {Black is clearly winning.} Nxc3 48. Rxe7 Rxd3 49. Ne5 Re3 50. a5 Re2 {[%cal Ra7e3]} 51. Nxg6 Be3+ {Accuracy: White = 33%, Black = 45%.} 0-1

[Event "Norm Congress-IM 2019"]
[Site "Saint Louis"]
[Date "2019.05.21"]
[Round "9.3"]
[White "Wu, Rochelle"]
[Black "Giannatos, Peter"]
[Result "1/2-1/2"]
[ECO "D35"]
[WhiteElo "2174"]
[BlackElo "2290"]
[Annotator "TA"]
[PlyCount "153"]
[EventDate "2019.05.16"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,153,18,18,16,24,25,23,10,14,4,4,0,19,-39,28,-131,-131,-138,-130,-171,-162,-151,-122,-115,-85,-107,-96,-98,-84,-103,-103,-97,-67,-60,-73,-86,-93,-89,-68,-64,-55,-65,-24,-25,0,-28,-23,-31,-38,-36,-26,-83,-66,-83,-77,-160,-150,-453,-281,-531,-527,-612,-600,-1122,-1102,-938,-450,-579,-562,-775,-258,-242,-232,-224,-14,-14,-14,-18,-25,-197,-148,-170,-8,-8,-8,-8,-8,-8,-8,-8,-19,-262,-254,-248,-196,-155,-156,-162,-155,-155,-78,-72,0,0,0,0,8,-8,0,0,0,0,8,0,0,-8,0,-8,-8,-8,0,0,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8]} 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. cxd5 exd5 5. Bg5 Be7 6. e3 c6 7. Bd3 Bg4 8. Qc2 Bh5 9. Nge2 Bg6 10. f3 {D35: Queen's Gambit Declined: Exchange Variation} (10. Ng3 Na6 11. a3 Nc7 12. Nf5 Ne6 13. h4 Bxf5 14. Bxf5 Qd6 15. O-O-O g6 16. Bd3 O-O-O 17. Kb1 Kb8 18. Bxf6 Bxf6 {1-0 (36) Vishnu,P (2504)-Nabaty,T (2692) Douglas 2018}) 10... Nbd7 11. O-O O-O 12. Rae1 {White has an edge.} Re8 $146 ({Predecessor:} 12... Bxd3 13. Qxd3 h6 14. Bh4 Nh7 15. Bf2 Ndf6 16. e4 dxe4 17. fxe4 {½-½ (44) Gabrenas,J (2003)-Variakojis,L (2173) Birzai 2011}) 13. Nf4 {[%cal Rf4g6]} Bxd3 14. Nxd3 Rc8 15. e4 (15. Qf2 $11) 15... c5 (15... dxe4 $15 16. fxe4 (16. Nxe4 Nxe4 17. Bxe7 Rxe7 $11) 16... c5 17. dxc5 Nxc5 18. Nxc5 Rxc5) 16. e5 $2 (16. dxc5 $11 Nxc5 17. e5 Nxd3 18. Qxd3) 16... cxd4 $17 17. exf6 Nxf6 ({Don't play} 17... gxf6 18. Bh6 $15) 18. Re5 dxc3 19. Rfe1 Qd7 20. bxc3 Bd8 21. Qb3 h6 22. Be3 b6 23. Rxe8+ Nxe8 24. Nf4 Nf6 25. Rd1 Qc6 26. Bd4 Bc7 27. Nd3 Rd8 28. Nb4 Qd6 29. g3 a5 30. Na6 Nd7 31. Nxc7 Qxc7 32. Qxd5 Nc5 33. Qf5 Ne6 34. Kg2 (34. Qb5 $11) 34... Qc4 35. Rd2 b5 ({Much worse is} 35... Nxd4 36. cxd4 Qc3 37. Qd3 $11) 36. Rb2 (36. h4 $142) 36... Rd5 $36 {[%mdl 2048] Black is on the roll.} 37. Be5 $2 (37. Qe4 $17 {is a better chance.}) 37... Qc5 (37... Rd1 38. Rf2 $19) 38. f4 $2 (38. Re2 {was the only chance.}) 38... Qc6 $19 {( -> ...Rd2+)} ({Not} 38... Rd1 39. Kh3 $17) 39. Kh3 f6 40. c4 bxc4 41. Rb8+ Nf8 (41... Kf7 $142 {...Rd2 is the strong threat.} 42. Rh8 {[#]} Nxf4+ $1 {[%mdl 512]} 43. gxf4 Rd3+ 44. Kh4 Qg2 $1 {[%mdl 576] Double Attack} 45. Rf8+ {[%mdl 64] Decoy} Kxf8 46. Qc8+ Kf7 $1 {[%mdl 512]} 47. Qxc4+ Rd5) 42. Rc8 Qa6 43. Rc7 {If White can now play Qg4 this consolidates a bit.} Qe6 $2 (43... c3 44. Qg4 Qf1+ 45. Kh4 g5+ 46. fxg5 hxg5+ 47. Kh5 Qd3) 44. Qxe6+ Nxe6 {[%mdl 4096] Endgame KRB-KRN} 45. Rc8+ Rd8 $2 ({Black should play} 45... Kf7 $19 46. Ba1 Rd1) 46. Rxd8+ $11 Nxd8 {KB-KN} 47. Bc3 Nc6 48. a3 $2 (48. Kg4 $11 {and White stays safe.}) 48... Kf7 49. Kg4 g6 $2 (49... Ke6 $19 50. Kf3 Kd5) 50. f5 g5 {Strongly threatening ...Ne5+.} 51. Kf3 a4 52. Ke4 Na7 53. Bb2 Nb5 {Threatens to win with ...h5.} 54. Kd5 $2 (54. g4 $11 {and White is okay.}) 54... c3 $19 55. Bc1 c2 56. Kc4 Nd6+ 57. Kc3 Nxf5 58. Kxc2 Ke6 59. Kc3 g4 ({Better is} 59... h5 $17 60. Kc4 h4 61. gxh4 Nxh4) 60. Kb4 $11 {The position is equal.} h5 61. Kxa4 Kd7 62. Bb2 Ne3 63. Bxf6 Nf1 64. Kb5 Kc8 65. a4 Nxh2 66. Be5 {And now Kb6 would win.} Kb7 67. a5 Nf3 68. Bf4 Nd4+ 69. Kc4 Ne2 70. Be5 (70. Bd6 {keeps more tension.} Ka6 71. Kd3 Nxg3 72. Bxg3 Kxa5 73. Ke3) 70... Ka6 71. Kd3 Nxg3 72. Bxg3 Kxa5 {KB-KPP} 73. Ke4 Kb5 74. Kf4 Kc4 75. Kg5 Kd5 76. Kxh5 Ke4 77. Kxg4 {Accuracy: White = 37%, Black = 49%.} 1/2-1/2

[Event "Norm Congress-IM 2019"]
[Site "Saint Louis"]
[Date "2019.05.21"]
[Round "9.4"]
[White "Gauri, Shankar"]
[Black "Grabinsky, Aaron"]
[Result "1-0"]
[ECO "A09"]
[WhiteElo "2375"]
[BlackElo "2338"]
[Annotator "TA"]
[PlyCount "52"]
[EventDate "2019.05.16"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,52,7,62,58,54,43,53,39,72,44,52,16,83,88,95,44,44,33,54,38,56,56,89,90,159,151,239,120,364,356,391,420,491,392,558,556,476,281,266,277,562,556,29984,29985,2254]} 1. Nf3 d5 2. c4 d4 3. b4 Bg4 4. Qb3 f6 (4... Bxf3 5. Qxf3 c6 6. g3 e5 7. b5 Nf6 8. Bg2 Be7 9. d3 O-O 10. O-O a6 11. Nd2 Qc7 12. bxc6 Nxc6 {1-0 (41) Duda,J (2731)-Laznicka,V (2670) Prague 2019}) 5. e3 dxe3 (5... Bxf3 $11 6. gxf3 Nc6) 6. fxe3 $14 {A09: Réti Opening: 1 Nf3 d5 2 c4} e5 7. Nc3 $146 ({Predecessor:} 7. c5 Nh6 8. Bb2 c6 9. Nc3 Be7 10. Bc4 Na6 11. d4 exd4 12. O-O-O {1-0 (23) Linares Napoles,O (2322)-Ramon Pita,V (2267) Havana 2010}) 7... Nc6 8. a3 {White is slightly better.} (8. b5 $5 {[%cal Rb5c6]} Na5 9. Qa4 $14) 8... Qd7 9. c5 Be6 $1 {[%cal Re6b3]} 10. Qa4 Nh6 (10... Nge7 $11) 11. Be2 $16 g5 12. Ne4 ({White should play} 12. b5 $16 Ne7 13. c6 $1 {[%mdl 512]} bxc6 14. bxc6) 12... Bg7 $14 13. b5 Nd8 14. O-O O-O 15. h3 Nf5 16. Bb2 b6 ({Better is} 16... Bd5) 17. g4 $36 {[%mdl 2048] And now c6 would win. White is on the roll.} Ne7 {[#]} (17... Nh4 $16 {is a better defense.} 18. Rad1 Qe7 19. cxb6 cxb6) 18. c6 ({Only move:} 18. d4 $1 $18) 18... Qc8 $2 (18... Qd5 $16) 19. d4 $18 exd4 20. Nxd4 Bd5 21. Ng3 Ne6 (21... a6 {keeps fighting.} 22. Ndf5 (22. bxa6 Ndxc6 23. e4 Nxd4 $18) 22... Nxf5 23. Nxf5 Qe6) 22. Ndf5 Nxf5 23. Rxf5 (23. Nxf5 $142 Qe8 24. Rad1) 23... Nc5 24. Qd4 Be6 $2 {[#]} (24... Bf7 25. Rxg5 {[%mdl 64] Pin} Bg6) 25. Rxg5 $1 {[%mdl 576] Pin} Nb3 {[#]} (25... fxg5 26. Qxg7#) 26. Rxg7+ $1 {[%mdl 512]} Kxg7 {Accuracy: White = 67%, Black = 24%.} 1-0

[Event "Norm Congress-IM 2019"]
[Site "Saint Louis"]
[Date "2019.05.21"]
[Round "9.5"]
[White "Ezra Paul Chambers"]
[Black "Torres Rosas, Luis Carlos"]
[Result "1/2-1/2"]
[ECO "C17"]
[WhiteElo "2241"]
[BlackElo "2320"]
[Annotator "TA"]
[PlyCount "70"]
[EventDate "2019.05.16"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,70,27,27,29,24,29,23,27,27,-6,23,31,20,22,25,29,19,25,42,36,42,15,20,0,12,0,0,0,0,0,0,0,0,-8,0,-36,0,0,0,0,0,0,-1,-14,-20,-14,0,0,0,0,0,0,0,0,0]} 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Ba5 6. b4 cxd4 7. Nb5 Bc7 8. f4 Bd7 9. Nxc7+ Qxc7 10. Nf3 {C18: French: 3 Nc3 Bb4: Main line: 7 h4 and 7 Qg4} Ba4 11. Bd3 Ne7 12. O-O {White has an edge.} Qb6 13. Qe2 a6 14. Qf2 Nbc6 15. Bb2 {[%cal Rf3d4]} Bb5 16. Nxd4 Bxd3 17. cxd3 Rc8 {[#]} 18. Rac1 $146 ({Predecessor:} 18. Rfc1 O-O 19. Nxc6 {½-½ (19) Svidler,P (2733)-Vaganian,R (2639) Moscow 2004}) 18... O-O 19. Rc5 Nb8 20. Rfc1 Nd7 21. Rxc8 Rxc8 22. Rxc8+ Nxc8 23. Nb3 Qb5 24. Qc2 Ne7 25. Bd4 Nc6 26. Be3 Qa4 (26... g5 $5) 27. Nd4 {The position is equal.} Qxa3 {[#] Hoping for ...Qa1+.} 28. Nxc6 bxc6 29. Qxc6 Qxb4 {[%cal Rb4e1]} 30. Kf2 Nf8 31. Qxa6 Qc3 {[#] ...d4 is the strong threat.} 32. Ke2 h5 33. Qa8 Qb2+ 34. Bd2 Qb1 35. g3 Qb6 {Accuracy: White = 67%, Black = 52%.} 1/2-1/2

