[Event "Charlotte Holiday IM 2020"]
[Site "Charlotte"]
[Date "2020.12.27"]
[Round "1.1"]
[White "Andrianov, Nikolai"]
[Black "Vivekananthan, Anish"]
[Result "1/2-1/2"]
[ECO "E05"]
[WhiteElo "2392"]
[BlackElo "2305"]
[Annotator "TA"]
[PlyCount "122"]
[EventDate "2020.12.26"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 24,122,12,10,16,0,0,0,0,0,9,15,0,-8,-11,-27,-12,-22,-22,-22,-23,-26,-27,-32,-34,-31,-30,-52,-26,-25,-18,-92,-89,-183,-182,-175,-177,-170,-110,-111,-121,-120,-111,-106,-107,-117,-112,-118,-111,-123,-124,-110,-64,-148,-102,-99,-100,-193,-193,-194,-167,-241,-243,-231,-222,-481,-280,-272,-269,-305,-132,-291,-259,-153,-84,-84,-84,-84,-6,-6,-6,-84,-84,-84,-27,-333,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Be7 5. O-O O-O 6. d4 dxc4 7. Qc2 a6 8. a4 Bd7 9. Qxc4 Bc6 10. Bg5 Bd5 11. Qd3 c5 12. Nc3 Bc6 13. Rfd1 Qa5 {13...cxd4 is vanishing. E05: Open Catalan: 5 Nf3 Be7.} 14. dxc5 Nbd7 15. Nd4 Bxg2 16. Kxg2 {[#]} Nxc5 $146 ({Predecessor:} 16... Qxc5 17. Ne4 Nxe4 18. Bxe7 Qxe7 19. Qxe4 Nf6 20. Qe3 Rac8 21. Rac1 Rxc1 22. Rxc1 Qd7 {½-½ (35) Szabo,Z-Kovacevic,A LSS email 2006}) 17. Qc4 {Black must now prevent Bxf6.} Ncd7 18. Bxf6 Nxf6 19. Nb3 Qe5 20. Qf4 Qxf4 21. gxf4 Rac8 22. Rd4 Rc7 23. Rad1 Rfc8 24. e3 Kf8 25. Kf3 b6 26. h3 g6 27. Nc1 {[#]} (27. Nd2 $11) 27... Ba3 $1 $17 {[%cal Ra3b2]} 28. Rd8+ (28. a5 $17 b5 29. Nd3) 28... Rxd8 $1 $19 29. Rxd8+ Ke7 30. Rd2 {[#]} Bxb2 $1 {[%mdl 512]} 31. Rxb2 $17 {And now N3e2 would win.} Rxc3 $19 {[%mdl 4096] Endgame KRN-KRN} 32. Ne2 Rc6 33. Nd4 Rd6 34. Rc2 Kd7 35. Rc4 Ne8 36. e4 Nc7 37. Ke3 Kc8 38. f5 (38. Nf3 $15) 38... gxf5 39. exf5 e5 40. Nc6 (40. Nf3 $17 {was necessary.}) 40... f6 $1 41. f4 Kb7 $1 42. Nxe5 (42. Nb4 $142 exf4+ 43. Ke4) 42... fxe5 43. fxe5 {KRN-KR} Rh6 44. h4 $2 (44. Rc1 {was worth a try.}) 44... b5 (44... Rh5 $142 45. Rc2 Rxf5) 45. axb5 axb5 46. Rg4 Nd5+ (46... Rh5 $19 {is more deadly.} 47. Kf4 Kc6) 47. Kd4 $2 (47. Kd3 $17) 47... Kc6 48. f6 {[#] and if f7 works, White does fine.} Nxf6 ({Black should try} 48... Nc7 $1 {[%cal Rc7e6] Threatens to win with ...Ne6+.} 49. Ke4 b4) 49. exf6 $17 Rxf6 {KR-KR} 50. Kc3 Rh6 ({Better is} 50... Rf3+ $17 51. Kc2 Rf2+ 52. Kc3 Rf3+ 53. Kd2 Rf5) 51. Kb4 $11 Rh5 52. Rd4 {[#]} (52. Rf4 $11) 52... Rf5 $1 $17 53. Rg4 Kd6 (53... Rf3 $17) 54. Rg7 $2 {[%mdl 8192]} (54. Rd4+ $1 $11 {and White is okay.} Kc6 55. Re4) 54... h5 $2 (54... Rf4+ $19 55. Kxb5 Rxh4) 55. Rg6+ $11 {The position is equal.} Ke7 56. Rb6 Rf4+ 57. Kxb5 Rxh4 {aiming for ...Rh1.} 58. Kc5 Kf7 59. Kd5 Kg7 60. Ke5 Rg4 61. Kf5 Rg1 {Weighted Error Value: White=0.32/Black=0.26} 1/2-1/2

[Event "Charlotte Holiday IM 2020"]
[Site "Charlotte"]
[Date "2020.12.27"]
[Round "1.2"]
[White "Liang, Jason"]
[Black "Chasin, Nico"]
[Result "0-1"]
[ECO "D00"]
[WhiteElo "2317"]
[BlackElo "2303"]
[Annotator "TA"]
[PlyCount "114"]
[EventDate "2020.12.26"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,114,25,23,21,23,21,35,31,52,52,56,45,60,19,27,7,67,0,12,-120,-127,-268,-278,-264,-266,-262,-270,-267,-274,-363,-362,-370,-363,-353,-364,-372,-361,-346,-257,-257,-251,-262,-254,-295,-310,-337,-354,-351,-347,-323,-330,-402,-333,-330,-300,-402,-395,-426,-414,-487,-481,-584,-577,-565,-565,-551,-533,-909,-937,-886,-864,-814,-567,-813,-779,-857,-790,-930,-897,-829,-700,-5479,-5759,-5202,-5018,-5397,-5372,-4133,-3389,-1566,-1264,-29978,-29979,-29975,-29976,-29982,-29982,-29982,-29983,-29983,-29984,-29984,-29985,-29985,-29985,-29985,-29986]} 1. d4 Nf6 2. Bg5 d5 3. e3 c6 4. Bxf6 gxf6 5. Nf3 Qb6 6. Qc1 {D00: 1 d4 d5: Unusual lines.} Bg4 7. Be2 Bh6 8. Nbd2 {[#] White is slightly better.} Rg8 $146 ({Predecessor:} 8... Nd7 9. h3 Bh5 10. g4 Bg6 11. Nh4 Rc8 12. c4 Qc7 13. Nxg6 fxg6 14. cxd5 cxd5 15. Qxc7 Rxc7 {1-0 (36) Distelrath,O-Romstadt,D Germany 1995}) 9. c4 Nd7 10. Qc2 {c5 is the strong threat.} f5 11. h3 Bxf3 12. Bxf3 e6 ({Better is} 12... f4 $11) 13. g4 (13. O-O-O $14) 13... f4 $1 $11 {[%cal Rf4e3]} 14. Qxh7 (14. Qc3 $11 {remains equal.}) 14... Rg6 $17 {White must now prevent ...Nf8.} 15. Ke2 {This costs White the game.} (15. Qh8+ $17 {was worth a try.} Nf8 16. Ke2) 15... Ke7 $19 16. g5 Bxg5 17. h4 {[#]} fxe3 $1 18. hxg5 exd2 19. Bh5 Nf8 ({Weaker is} 19... Qxd4 20. Bxg6 Ne5 21. Bxf7 $11 (21. Rh4 Qxb2 22. Rb1 d1=B+ 23. Kxd1 Qxf2 $11)) (19... Qxb2 $2 20. Rhd1 $19) ({Not} 19... Rxg5 20. Qxf7+ Kd8 21. Rh4 $15) 20. Qh8 Rxg5 21. Qh6 Rf5 22. Qxd2 dxc4 {And now ...Qb5 would win.} 23. Qc3 Qa5 24. Bf3 Qxc3 25. bxc3 Nd7 26. Rab1 Nb6 27. Rh7 Ra5 28. Rb2 Rg8 29. Bh5 Rf5 30. a4 Rg2 31. Bf3 Rg1 32. Rh8 Kf6 33. Ra2 Ra5 34. Rb8 Nxa4 35. Ra3 Rc1 36. Kd2 {[#]} Nc5 $1 37. Kxc1 Rxa3 38. dxc5 Rxc3+ {[%mdl 64] Double Attack} 39. Kd2 Rxf3 40. Rxb7 {[%mdl 4096] Endgame KR-KR} Rf5 41. Rxa7 Rxc5 42. Kc3 Rf5 43. Ra2 Rf4 44. Kb4 Ke5 45. Kc5 c3 46. Re2+ Kf5 47. Rc2 Rf3 48. Re2 Rd3 49. Rc2 Ke4 50. Kxc6 Kd4 {Black mates.} 51. Rc1 Rd2 52. f4 c2 53. Kd6 Kc3+ 54. Ke7 Rd1 55. Rxc2+ Kxc2 56. Kxf7 Rf1 57. Kxe6 Rxf4 {Weighted Error Value: White=0.48/Black=0.14} 0-1

[Event "Charlotte Holiday IM 2020"]
[Site "Charlotte"]
[Date "2020.12.27"]
[Round "1.3"]
[White "Tsay, Vincent"]
[Black "Vijay, Keerthi K."]
[Result "1/2-1/2"]
[ECO "B06"]
[WhiteElo "2266"]
[BlackElo "2242"]
[Annotator "TA"]
[PlyCount "71"]
[EventDate "2020.12.26"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,71,47,68,66,72,74,79,75,115,104,134,125,131,108,104,80,101,81,96,101,98,94,91,91,90,74,70,26,26,24,13,7,38,0,0,0,28,0,0,0,0,0,0,0,0,-2,-2,-16,-16,-16,-16,-16,-16,-16,0,0,0,0,0,0,4,0,12,0]} 1. d4 d6 2. e4 g6 3. Nc3 Bg7 4. Be3 Nc6 5. Nf3 e5 6. dxe5 {B06: Modern Defence.} Nxe5 7. Nxe5 Bxe5 8. Qd2 {White is better.} Be6 9. Be2 Ne7 10. f4 Bg7 11. O-O-O Qd7 {[#]} 12. Bd4 $146 ({Predecessor:} 12. h3 a6 13. g4 f6 14. Nd5 Nxd5 15. exd5 Bf7 16. c4 b5 17. c5 dxc5 18. Bxc5 {1-0 (24) Kristiansen,J (2405)-Hvenekilde,J (2245) Aarhus 1976}) 12... f6 13. h4 h5 14. Rhe1 a6 {[#]} 15. Nd5 $1 {[%cal Rd5f6]} Bxd5 16. exd5 O-O 17. Bc3 Rae8 18. Rg1 {aiming for g4.} f5 19. Rge1 Nc8 20. Bf3 Nb6 21. Bxg7 Qxg7 22. Qb4 Qd7 23. g3 Qa4 {The position is equal.} 24. a3 Qxb4 25. axb4 Rxe1 26. Rxe1 $11 {[%mdl 4096] Endgame KRB-KRN} Kf7 27. b3 Ra8 28. Re3 (28. Rd1 {feels hotter.} Nd7 29. Kd2 Re8 30. c4 Nf6 31. Rc1) 28... Re8 29. Kd2 Rxe3 30. Kxe3 {KB-KN} Nc8 31. c4 b5 32. Be2 Na7 33. Kd4 Kf6 34. Bf1 Kf7 35. Be2 Kf6 36. Bf1 {Weighted Error Value: White=0.08/Black=0.06} 1/2-1/2

[Event "Charlotte Holiday IM 2020"]
[Site "Charlotte"]
[Date "2020.12.27"]
[Round "1.4"]
[White "Li, Eric"]
[Black "Martin Del Campo C., Roberto"]
[Result "0-1"]
[ECO "A54"]
[WhiteElo "2311"]
[BlackElo "2313"]
[Annotator "TA"]
[PlyCount "172"]
[EventDate "2020.12.26"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,172,80,65,70,80,71,111,107,120,87,78,70,111,96,116,100,102,85,87,87,134,-83,-91,-83,-107,-105,-97,-99,-70,-137,-130,-123,-106,-206,-135,-128,-129,-147,-117,-272,-31,-32,-29,-73,-73,-73,-79,-83,-73,-73,-73,-73,-74,-75,-75,-125,-118,-118,-118,-226,-88,-88,-88,-88,-58,-58,-58,-58,-58,-58,-58,-58,-58,-58,-8,-138,-138,-138,-138,-139,-138,-138,-138,-138,-138,-138,-138,-138,-138,-138,-58,-138,-138,-138,-138,-138,-138,-138,-138,-139,-138,-138,-138,-138,-138,-176,-137,-137,-137,-12796,-12679,-1148,-137,-137,-137,-137,-137,-176,-176,-176,-176,-176,-176,-176,-176,-29945,-12850,-12653,-11426,-6386,-8,-8,-8,-119,-8,-8,-8,-8,-8,-8,0,0,0,-29955,-29962,-29978,-29979,-29979,-29980,-29980,-29981,-29981,-29982,-29982,-29983,-29983,-29982,-29982,-29983,-29983,-29984,-29984,-29985,-29985,-29986]} 1. d4 Nf6 2. c4 d6 3. Nc3 e5 4. Nf3 e4 5. Nd2 Bf5 6. Qb3 {A54: Old Indian Defence with Nf3, but without e4.} Nc6 7. e3 {[#]} Qc8 $146 ({Predecessor:} 7... Rb8 8. g3 Qd7 9. h3 d5 10. cxd5 Nb4 11. Bg2 a5 12. a3 a4 13. Nxa4 Nbxd5 {1-0 (77) Khismatullin,D (2635)-Glidzhain,G (2331) Ufa 2012}) 8. g3 {White is better.} Rb8 9. h4 Be7 10. Bg2 O-O 11. Ncxe4 Nxe4 12. Nxe4 ({Reject} 12. Bxe4 $6 Bxe4 13. Nxe4 Qe6 $11) 12... Re8 13. f3 b5 14. cxb5 d5 15. Qd1 $2 Nb4 $17 16. a3 dxe4 17. axb4 Bxb4+ 18. Kf2 Rxb5 19. Rf1 (19. Rxa7 $15 exf3 20. Bxf3) 19... a5 20. Kg1 Qd7 21. f4 (21. b3 $17) 21... Rd5 22. Bd2 c5 23. Bc3 cxd4 24. Bxd4 (24. exd4 $17 Rc8 25. Rc1) 24... Bc5 $2 ({Black should play} 24... Bg4 $19 25. Qa4 Rxd4 26. exd4 Qxd4+ {[%mdl 64] Double Attack} 27. Kh2 Rd8) 25. Rxa5 $15 {[#]} Rd8 $1 {[%cal Rc5d4]} 26. Qa4 (26. Rxc5 Rxc5) 26... Bxd4 27. exd4 {next Qxd7 is good for White.} Rxa5 28. Qxa5 Qxd4+ 29. Kh2 g6 30. Qc3 Qxc3 31. bxc3 $17 {[%mdl 4096] Endgame KRB-KRB} Rd2 32. Kg1 Rc2 33. Re1 Rxc3 34. Bxe4 (34. Kf2 $17 {is a better defense.}) 34... Rxg3+ (34... Bxe4 $19 35. Rxe4 f5 36. Re8+ Kf7) 35. Kf2 Rg4 36. Kf3 Rxh4 37. Bxf5 gxf5 {KR-KR} 38. Re5 Rh3+ 39. Kg2 Rh5 40. Kg3 Kg7 41. Ra5 Kg6 {White must now prevent ...Rh1.} 42. Ra8 (42. Ra6+ $11 Kg7 43. Ra5) 42... Rh1 43. Rg8+ Kf6 44. Ra8 Rg1+ 45. Kf3 Rb1 46. Rg8 Rb3+ 47. Kg2 Rb7 48. Kg3 Rd7 49. Kg2 Ke6 (49... Rd4 $17 50. Kf3 Rd1) 50. Re8+ ({White should try} 50. Rg5 $1 $15) 50... Re7 $1 {[%cal Re7e8]} 51. Rd8 f6 52. Kf3 Rd7 53. Re8+ Kf7 54. Rh8 Kg6 55. Rg8+ Kh5 56. Rf8 Rd3+ 57. Ke2 Rh3 58. Rxf6 Kg4 59. Ra6 $2 {[%mdl 8192]} (59. Kf2 $17) 59... Kxf4 $19 60. Ra4+ Kg5 $2 (60... Kg3 $1 $19 {and Black stays clearly on top. Strongly threatening ...Rh2+.} 61. Ra3+ Kg4) 61. Kf2 $17 h5 62. Kg2 Rb3 63. Rc4 h4 64. Ra4 Rg3+ 65. Kh2 Re3 66. Kg2 Re4 67. Ra3 $2 (67. Ra7 $19) 67... Kg4 68. Ra8 Re2+ 69. Kg1 h3 $2 (69... Kf3 $19 {Hoping for ...f4.} 70. Kf1 f4) 70. Rg8+ $11 Kf3 {( -> ...Rg2+)} 71. Rh8 Re1+ (71... Kg3 $1 $17 {[%cal Re2e1]} 72. Rg8+ Kf3) 72. Kh2 f4 (72... Kf2 {looks sharper.} 73. Rxh3 Re2 74. Ra3 Rc2 75. Ra4 Kf3+) 73. Rxh3+ Kf2 74. Ra3 f3 {aiming for ...Re8.} (74... Re8 {seems wilder.} 75. Ra2+ Kf1 76. Ra1+ Re1 77. Ra3 Re2+) 75. Ra2+ Re2 (75... Kf1 $5 76. Kg3 $8 Re3 77. Rf2+ Ke1 $11) 76. Ra3 $2 {[%mdl 8192] [#]} (76. Ra8 $11) 76... Kf1+ $1 {Black mates.} 77. Kh3 f2 78. Kh2 Re8 79. Ra1+ Ke2 80. Ra2+ Kf3 {[%cal Re8h8]} 81. Ra3+ {[#]} Re3 $1 82. Ra1 Re1 83. Ra3+ Ke4 84. Ra4+ Kd5 85. Ra5+ Kc6 86. Ra6+ Kb7 {Weighted Error Value: White=0.41/Black=0.33} 0-1

[Event "Charlotte Holiday IM 2020"]
[Site "Charlotte"]
[Date "2020.12.27"]
[Round "1.5"]
[White "Diulger, Alexey"]
[Black "Velikanov, Alexander"]
[Result "0-1"]
[ECO "A16"]
[WhiteElo "2298"]
[BlackElo "2308"]
[Annotator "TA"]
[PlyCount "56"]
[EventDate "2020.12.26"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,56,13,26,-22,-30,-35,-30,-23,-33,-90,-69,-70,-59,-70,24,16,46,40,23,10,31,0,0,0,39,-45,-47,-49,-53,-54,-51,-116,-124,-391,-373,-373,-375,-1421,-1391,-5502,-5502,-5502,-5489,-3437,-2459,-2459,-2372,-1988,-1818]} 1. c4 Nf6 2. Nc3 g6 3. e4 Bg7 4. e5 Ng8 5. d4 c5 6. Be3 {[#] A16: English Opening: 1...Nf6 with ...d5.} cxd4 $146 ({Predecessor:} 6... Nc6 7. d5 Nxe5 8. f4 Nxc4 9. Bxc4 d6 10. Nf3 Nf6 11. h3 O-O 12. O-O Bf5 {1-0 (24) Reh,P (2106)-Collmann,M (1594) Bad Zwesten 2005}) 7. Bxd4 Nc6 8. Nf3 {Black has an edge.} Nh6 9. Nd5 (9. e6 $15 Nxd4 10. exf7+ Nxf7 11. Nxd4) 9... Nxd4 $17 10. Qxd4 d6 11. c5 dxe5 ({Better is} 11... O-O $15 12. Qb4 e6 13. Nf6+ Bxf6 14. exf6 dxc5 15. Qxc5 Qxf6) 12. Qa4+ $1 $11 (12. Nxe5 $2 O-O $19) 12... Bd7 13. Bb5 Bxb5 $1 14. Qxb5+ {[%mdl 64] Double Attack} Kf8 15. Qxb7 Rb8 $36 {[%mdl 2048] Black has good play.} 16. Qxa7 {And now Nb6 would win.} e4 {[#]} ({Wrong is} 16... Rxb2 $2 17. c6 $1 $18) (16... Ra8 $5 {[%cal Ra8a7]} 17. Qb7 Rb8 $11) 17. Nb6 (17. c6 $1 $14 Rc8 18. Rd1 $1 Rxc6 19. Ng5) 17... Bxb2 $15 18. Rd1 Bc3+ 19. Ke2 exf3+ 20. gxf3 (20. Kxf3 $15 Qe8 21. Nd7+ Kg7 22. Qxb8 Qxb8 23. Nxb8 Rxb8 24. Rd3) 20... Qe8 $17 {White must now prevent ...Qb5+.} 21. Rd3 $2 {[%mdl 8192] [#] Loses the game.} (21. Qxb8 $17 {was worth a try.} Qxb8 22. Nd7+ Kg7 23. Nxb8 Rxb8 24. a4) 21... Kg7 $1 $19 22. Rxc3 {Threatening c6.} Qb5+ 23. Kd2 $2 (23. Nc4 Ra8 24. Qb6 Rxa2+ 25. Kf1) 23... Qb2+ {Black is clearly winning.} 24. Kd3 Rhd8+ 25. Kc4 Nf5 {[%csl Gf5][%cal Rd8d4]} 26. Rb3 Rd4+ 27. Kb5 Qe2+ 28. Kc6 Rdd8 {Weighted Error Value: White=0.97/Black=0.25} 0-1

[Event "Charlotte Holiday IM 2020"]
[Site "Charlotte"]
[Date "2020.12.27"]
[Round "2.1"]
[White "Andrianov, Nikolai"]
[Black "Liang, Jason"]
[Result "1/2-1/2"]
[ECO "A14"]
[WhiteElo "2392"]
[BlackElo "2317"]
[Annotator "TA"]
[PlyCount "113"]
[EventDate "2020.12.26"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,113,7,0,0,0,0,0,0,0,8,-18,-14,-13,-9,-12,-10,-12,-12,-12,-12,-12,-12,-12,-12,-12,-9,-14,-4,-10,0,-10,-2,-41,-35,-35,-33,-43,-50,-50,-43,-47,-40,-49,-50,-85,-74,-50,-22,-23,-24,-25,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. Nf3 d5 2. c4 e6 3. g3 Nf6 4. Bg2 Be7 5. O-O O-O 6. b3 b6 7. Bb2 Bb7 8. e3 c5 9. cxd5 Nxd5 10. d4 Nc6 11. Nc3 Nxc3 {A14: English Opening: 1...e6 with b3 by White.} 12. Bxc3 Rc8 13. dxc5 Bxc5 14. Ne5 {Black should prevent Nd7.} Qe7 15. Qd7 {[#]} Rfd8 $146 ({Predecessor:} 15... f6 16. Qxe7 Bxe7 17. Nd3 Ba6 18. Rfd1 Rfd8 19. Bf1 Kf7 20. f4 Nb8 21. Rac1 Ba3 {0-1 (39) Hasidume,S (1849)-Uygun,A (2055) ICCF email 2009}) 16. Qxe7 Bxe7 17. Rfd1 Nxe5 18. Rxd8+ Bxd8 19. Bxe5 Bxg2 20. Kxg2 $11 {[%mdl 4096] Endgame KRB-KRB} f6 21. Bd6 Kf7 22. Rd1 Ke8 23. Rd2 b5 24. Ba3 a5 25. Bb2 Be7 26. e4 Bb4 27. Re2 a4 28. bxa4 bxa4 29. Bd4 Rc4 30. Ba7 Kd7 31. f4 Kc6 32. g4 Bc5 (32... e5 {is more complex.} 33. fxe5 fxe5 34. Kf3 Rc3+ 35. Re3 Rc1) 33. Bxc5 Kxc5 $17 {KR-KR} (33... Rxc5 {feels hotter.} 34. h4 a3 35. e5 fxe5 36. Kf3 Rc3+) 34. e5 Kd5 35. Rd2+ Rd4 (35... Ke4 {is interesting.} 36. exf6 gxf6 37. Rf2 a3 38. h4 Rc3) 36. Rxd4+ {The position is equal.} Kxd4 37. exf6 gxf6 $11 {KP-KP} 38. h4 Ke4 39. Kg3 a3 40. g5 Kf5 41. Kf3 fxg5 42. hxg5 e5 43. fxe5 Kxg5 {KPP-KPP} 44. Ke4 {[#] And now Kd5 would win.} h5 45. Kd5 {Threatens to win with e6.} h4 46. e6 {e7 would kill now.} h3 {( -> ...h2)} (46... Kf6 $5 47. Kd6 $8 h3 $11) 47. e7 h2 48. e8=Q {White wants to mate with Qe5+.} h1=Q+ {KQ-KQ} 49. Qe4 Qd1+ 50. Kc5 (50. Ke6 {with more complications.} Qc1 51. Qf5+ Kh4 52. Qh7+ Kg4 53. Qf5+) 50... Qc1+ 51. Kb4 Qb2+ 52. Ka4 Qxa2 53. Qe3+ Kf5 54. Qxa3 Qc4+ 55. Qb4 Qa6+ 56. Qa5+ Qxa5+ 57. Kxa5 {Weighted Error Value: White=0.04/Black=0.02} 1/2-1/2

[Event "Charlotte Holiday IM 2020"]
[Site "Charlotte"]
[Date "2020.12.27"]
[Round "2.2"]
[White "Martin Del Campo C., Roberto"]
[Black "Diulger, Alexey"]
[Result "1/2-1/2"]
[ECO "B01"]
[WhiteElo "2313"]
[BlackElo "2298"]
[Annotator "TA"]
[PlyCount "42"]
[EventDate "2020.12.26"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,42,64,89,86,85,86,93,86,125,85,102,89,82,76,272,265,300,300,300,294,305,310,327,253,281,264,292,269,265,274,293,257,275,272,285]} 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qe5+ 4. Be2 Qg5 5. Bf3 Qe5+ 6. Nge2 {[#] B01: Scandinavian Defence.} c6 $146 ({Predecessor:} 6... Bf5 7. O-O Nd7 8. Bxb7 Rb8 9. Bf3 Ngf6 10. a3 Qe6 11. Re1 Bh3 12. Nf4 Qf5 13. Nxh3 {1-0 (13) Metodieva,E-Petrova,D Sofia 2011}) 7. d4 Qa5 8. O-O {White is better.} e6 9. Bf4 Nf6 10. Qd2 Be7 11. Rad1 O-O $2 {[#]} (11... Qd8 $16) 12. Nd5 $1 $18 {[%cal Rd5e7][%mdl 576] Discovered Attack. White has a decisive advantage.} Qxd5 (12... Qd8 13. Nc7) 13. Bxd5 cxd5 14. Ng3 Nc6 15. c3 b5 16. b4 a5 17. a3 a4 18. Rfe1 Bd7 19. Bg5 Rfc8 20. Rc1 Ne8 21. Bxe7 Nxe7 {[%mdl 32768] White took control after the opening.  Weighted Error Value: White=0.15/Black=0.36. An unexpected result.} 1/2-1/2

[Event "Charlotte Holiday IM 2020"]
[Site "Charlotte"]
[Date "2020.12.27"]
[Round "2.3"]
[White "Vijay, Keerthi K."]
[Black "Li, Eric"]
[Result "1/2-1/2"]
[ECO "B50"]
[WhiteElo "2242"]
[BlackElo "2311"]
[Annotator "TA"]
[PlyCount "51"]
[EventDate "2020.12.26"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,51,0,-1,4,7,35,32,31,37,58,62,83,103,108,100,116,125,164,172,174,170,189,79,73,86,73,8,8,8,6,16,10,8,40,27,34,33,28,13,22,10,16,0]} 1. e4 c5 2. Nf3 d6 3. c3 Nf6 4. Be2 g6 5. O-O Bg7 6. Qc2 O-O {B50: Sicilian: 2...d6, Miscellaneous.} 7. d4 b6 8. Rd1 cxd4 {White is slightly better.} 9. cxd4 {[#]} Ba6 $146 ({Predecessor:} 9... Bb7 10. Nc3 Qc7 11. Bd3 Nbd7 12. Qe2 Rac8 13. Bd2 Rfe8 14. b4 e6 15. a4 Nh5 {1-0 (34) Frenkel,R (2174)-Eliagov,K (2268) Beersheba 2014}) 10. Nc3 Qc8 11. Bg5 h6 12. Bxf6 Bxf6 13. Rac1 e6 {[#]} 14. Qd2 $1 Bxe2 15. Qxe2 ({But not} 15. Nxe2 Qa6 $16) 15... Qa6 {[#]} 16. Qxa6 (16. Nb5 $1 $18 {and White stays clearly on top.}) 16... Nxa6 $16 17. Nb5 Rfd8 18. Nc7 (18. h3 $16) 18... Nxc7 $11 19. Rxc7 Kf8 20. Rdc1 Ke8 21. Kf1 h5 22. Ke2 d5 23. e5 Be7 24. h3 Rd7 25. R7c6 Rb7 26. Rc7 {Weighted Error Value: White=0.15/Black=0.09} 1/2-1/2

[Event "Charlotte Holiday IM 2020"]
[Site "Charlotte"]
[Date "2020.12.27"]
[Round "2.4"]
[White "Chasin, Nico"]
[Black "Tsay, Vincent"]
[Result "1/2-1/2"]
[ECO "D52"]
[WhiteElo "2303"]
[BlackElo "2266"]
[Annotator "TA"]
[PlyCount "148"]
[EventDate "2020.12.26"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,148,26,17,26,19,28,15,19,34,38,18,37,31,128,83,106,0,7,0,22,0,0,4,2,6,43,33,56,31,48,0,19,-70,-61,-64,-65,-218,-178,-169,-59,-63,-73,-231,0,0,0,0,0,0,0,5,1,0,0,-18,-19,-18,-23,-14,-21,-90,-97,-91,-90,-205,-72,-78,-83,-79,-8,-8,-10,-8,-15,-8,-10,-50,-51,-51,-51,-51,-50,-47,0,0,0,0,0,0,0,0,0,0,0,0,4,4,4,0,0,0,0,0,0,0,0,0,4,4,4,0,0,0,0,0,4,0,0,0,4,4,4,4,4,4,5,4,4,0,0,0,0]} 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 Nbd7 6. e3 Qa5 7. cxd5 Nxd5 8. Qd2 Bb4 9. Rc1 h6 10. Bh4 Nxc3 11. bxc3 Ba3 12. Rb1 b6 13. Qd3 O-O 14. Be2 Re8 15. O-O e5 (15... Be7 $14) 16. Nd2 Bf8 17. Qc4 ({White should play} 17. a4 $16) 17... Nb8 $1 $11 {[#] Hoping for ...Ba6.} 18. Nb3 Qa6 19. Qxa6 Bxa6 20. c4 Nd7 21. Rfd1 Be7 22. Bg3 Bf6 23. Bg4 Rad8 24. c5 g6 25. d5 (25. a4 $11) 25... cxd5 $15 26. c6 Nf8 27. e4 $2 (27. c7 $15 Ra8 28. f4 (28. Rxd5 h5 $15)) 27... d4 28. f4 h5 (28... exf4 $19 29. Bxf4 Rxe4) 29. c7 Ra8 30. Bh3 (30. fxe5 $17 Bxe5 31. Bh3 Bxg3 32. hxg3) 30... Bc8 $2 ({Black should try} 30... exf4 $19 31. Bf2 d3) 31. fxe5 $11 Bxe5 32. Nxd4 Bxh3 33. gxh3 Bxg3 34. hxg3 Rac8 $1 {[%cal Rc8c7]} 35. Nb5 {Strongly threatening Nd6.} Re7 $1 36. Rd6 a6 37. Rd8 Rexc7 {[%mdl 64] [#] Remove Defender} 38. Nxc7 Rxd8 {[%mdl 4096] Endgame KRN-KRN} 39. Rb2 (39. Rxb6 $11 {remains equal.} Rd3 40. Rxa6) 39... Rd3 40. Kg2 Ra3 41. Rd2 (41. Rxb6 $17 Rxa2+ 42. Kf3) 41... Kg7 (41... b5 $19 {is more deadly.} 42. Nd5 Ne6) 42. Ne8+ $17 Kh6 43. Nd6 h4 (43... f6 $17) 44. gxh4 $11 Ne6 45. Rf2 Kh5 46. Nxf7 Kxh4 47. Kf1 (47. Rf6 $5 {[%cal Rf6e6]} Nd4 48. Kf2 $15) 47... g5 {White must now prevent ...Nf4.} 48. Rf6 Nf4 49. Nxg5 Nh5 $1 {[%cal Rh5f6]} 50. Rg6 Nf4 (50... Rg3 $5 {[%cal Rg3g5]} 51. Rxb6 Kxg5 52. Rxa6 Kf4 $17) 51. Rf6 {The position is equal.} Rxa2 (51... Kg3 {is interesting.} 52. Rxb6 Rxa2 53. Rb3+ Kh4 54. Nf3+ Kxh3 55. Ne5+ Kh4) 52. Rxf4+ Kxg5 {KR-KR} 53. Rf5+ Kg6 54. h4 b5 {And now ...b4 would win.} 55. h5+ Kh6 {Threatening ...b4.} 56. e5 Rd2 57. e6 {Threatening mate with e7.} Rd8 58. Ke2 (58. e7 {keeps more tension.} Re8 59. Re5 Kg7 60. Re6 a5 61. h6+) 58... Re8 59. Re5 Kg7 60. Re3 Kf6 61. h6 Ke7 62. Rg3 b4 ({Worse is} 62... Kxe6 63. Re3+ Kf5 64. Rxe8 Kg6 65. Re6+ Kh7 66. Ke3 b4 67. Kf4) 63. Kd3 Rc8 {aiming for ...Rc3+.} 64. Ke4 {Threatens to win with Kd5.} (64. h7 {seems wilder.} Rh8 65. Rh3 Kxe6 66. Kc4 a5 67. Rh6+) 64... Kxe6 {...Rc4+ is the strong threat.} 65. Rg6+ Kf7 66. Rxa6 Rc4+ 67. Kf5 (67. Kd5 {is more complex.} Rc1 68. Ra8 Rh1 69. Ra7+ Kg6 70. Ra6+) 67... Rc5+ 68. Ke4 Rh5 69. Kd3 b3 70. Kc3 Rh3+ 71. Kb2 Kg8 72. Rb6 Kh7 73. Rxb3 Rxb3+ 74. Kxb3 Kxh6 {Weighted Error Value: White=0.24/Black=0.22} 1/2-1/2

[Event "Charlotte Holiday IM 2020"]
[Site "Charlotte"]
[Date "2020.12.27"]
[Round "2.5"]
[White "Vivekananthan, Anish"]
[Black "Velikanov, Alexander"]
[Result "1/2-1/2"]
[ECO "B80"]
[WhiteElo "2305"]
[BlackElo "2308"]
[Annotator "TA"]
[PlyCount "81"]
[EventDate "2020.12.26"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,81,18,32,0,0,0,0,0,-17,-22,4,0,0,-25,-2,-25,-34,-54,-41,-77,-71,-72,-59,-47,0,0,0,0,0,0,58,65,131,143,141,141,90,0,0,0,26,0,0,-19,-2,-21,0,-36,39,39,158,158,398,273,379,374,494,174,185,199,555,0,0,0,484,0]} 1. e4 c5 2. Nf3 e6 3. g3 Nc6 4. Bg2 Nf6 5. Nc3 d6 6. d4 cxd4 7. Nxd4 Bd7 8. O-O Be7 9. Re1 O-O 10. Ndb5 {B80: Sicilian Scheveningen: 6 g3 and 6 Be3, including English Attack.} Qb8 11. a4 a6 12. Nd4 {[#] The position is equal.} Nxd4 $146 ({Predecessor:} 12... Qc7 13. Nb3 Rac8 14. h3 b6 15. Qe2 Nb4 16. Be3 e5 17. Red1 Be6 18. Rac1 Qb7 19. Na1 Rxc3 20. bxc3 Na2 21. Qd3 Nxc1 22. Rxc1 {0-1 (39) Hulak,K (2470)-Cebalo,M (2510) Zagreb 1981}) 13. Qxd4 Qc7 14. Qd3 Ng4 15. Ne2 {[%cal Bc3e2,Be2f4,Bf4d3][%mdl 32]} Qc5 16. Rf1 (16. Qf3 {seems wilder.} Ne5 17. Qc3 Qxc3 18. Nxc3 g5 19. f4) 16... b5 17. a5 b4 18. h3 Ne5 19. Qd1 Nc4 20. Nf4 Nxa5 21. e5 $1 {[%cal Re5d6]} d5 22. Qg4 $1 Nc6 23. Be3 d4 {[#]} ({Black should play} 23... Qxc2 $11 24. Nxd5 exd5 25. Qxd7 Rfd8) 24. Nd3 $1 $14 Qxc2 (24... Qb6 $14 25. Bh6 g6) 25. Bh6 $1 $16 {[%csl Gh6][%cal Rg4g7]} g6 26. Bxf8 Rxf8 (26... Bxf8 $142 27. Qe4 Rd8) 27. Be4 (27. Qe4 $1 $16) 27... Qc4 $11 28. h4 Qb5 29. Qf4 Na5 30. h5 g5 31. Qg4 Nc4 32. Rfd1 (32. Rfc1 {is more complex.} h6 33. Qe2 b3 34. f4 Kg7 35. Ne1) 32... Kh8 ({Black should try} 32... h6 $15) 33. Bf3 Rd8 (33... Na5 $14) 34. Qxd4 $16 Bc6 $2 (34... Kg8 $16 {was called for.} 35. Qa7 Kf8 36. Qxa6 (36. Rxa6 Be8 $18) 36... h6 37. Qxb5 Bxb5) 35. Bxc6 {Strongly threatening Qxd8+!} Qxc6 36. Qa7 Rd7 {[#]} 37. Rxa6 (37. Nxb4 $1 {[%mdl 512]} Rxd1+ 38. Rxd1) 37... Qb5 38. Qa8+ Rd8 $2 (38... Kg7 {is a better chance.} 39. Raa1 Nxe5 40. Nxe5 Rxd1+ 41. Rxd1 Qxe5) 39. Qa7 Rd7 40. Qa8+ Rd8 $1 {[%cal Rd8a8] [#]} 41. Qa7 $2 {Weighted Error Value: White=0.37/Black=0.41} (41. h6 $1 $18 Qd7 42. Qe4) 1/2-1/2

[Event "Charlotte Holiday IM 2020"]
[Site "Charlotte"]
[Date "2020.12.28"]
[Round "3.1"]
[White "Tsay, Vincent"]
[Black "Andrianov, Nikolai"]
[Result "1/2-1/2"]
[ECO "B07"]
[WhiteElo "2266"]
[BlackElo "2392"]
[Annotator "TA"]
[PlyCount "26"]
[EventDate "2020.12.26"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,26,49,47,80,79,93,85,83,89,68,71,94,89,92,19,29,22,110]} 1. d4 Nf6 2. Bf4 g6 3. Nc3 Bg7 4. e4 d6 5. Qd2 O-O 6. O-O-O Re8 {B07: Pirc Defence: Miscellaneous Systems.} 7. h4 {[#]} Nc6 $146 ({Predecessor:} 7... h5 8. Nf3 Nc6 9. Bc4 Bg4 10. Ng5 d5 11. Nxd5 Nxe4 12. Nxe4 Bxd1 13. Rxd1 Rc8 14. c3 {1-0 (59) Guerra,R-Wang,A (1502) Auckland 2019}) 8. Bh6 e5 {White is better.} 9. d5 Nd4 10. f3 Nh5 11. Bxg7 Kxg7 12. Nce2 (12. g4 $16 Ng3 13. Rh2) 12... Nxe2+ $11 13. Nxe2 Qf6 {Weighted Error Value: White=0.15/Black=0.11} (13... f5 $1 $11 {keeps the balance.}) 1/2-1/2

[Event "Charlotte Holiday IM 2020"]
[Site "Charlotte"]
[Date "2020.12.28"]
[Round "3.2"]
[White "Liang, Jason"]
[Black "Vivekananthan, Anish"]
[Result "1/2-1/2"]
[ECO "A45"]
[WhiteElo "2317"]
[BlackElo "2305"]
[Annotator "TA"]
[PlyCount "120"]
[EventDate "2020.12.26"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,120,19,25,0,9,0,6,7,33,18,45,23,38,31,31,36,27,-22,0,0,0,-15,64,93,90,62,21,0,21,20,17,29,11,0,0,0,0,-6,0,-79,-90,-85,-34,-64,-43,-67,-44,-91,-91,-74,0,0,0,0,0,0,0,0,26,0,37,37,37,-41,-34,-51,-51,-102,-96,-87,-56,-81,-67,-82,-70,-66,-59,-131,-74,-86,-79,-133,-133,-173,-189,-222,-149,-248,-128,-121,-56,-63,-56,-43,-49,-88,-54,-69,-61,-55,0,0,0,-82,0,-8,0,0,0,0,0,-6,0]} 1. d4 Nf6 2. Bg5 e6 3. e4 h6 4. Bxf6 Qxf6 5. c3 d6 6. Bc4 {A45: Trompowsky Attack.} g6 7. Ne2 Bg7 8. O-O Nd7 9. f4 Qe7 10. Nd2 {[#]} O-O $146 ({Predecessor:} 10... c6 11. Bb3 Nb6 12. Kh1 f5 13. exf5 gxf5 14. Ng3 Qf7 15. Nh5 Rg8 16. Qe2 Bd7 {1-0 (25) Scho,C (2177)-Matzat,A (2145) Germany 2003}) 11. f5 Nb6 {[%cal Re6f5]} 12. fxg6 fxg6 13. Bb3 Kh7 (13... Rxf1+ {is interesting.} 14. Qxf1 a5 15. e5 dxe5 16. dxe5 Bd7) 14. Rxf8 Qxf8 15. Qe1 Bf6 (15... Bd7 $11) 16. e5 $14 dxe5 17. Qg3 exd4 18. Rf1 {Ne4 is the strong threat.} Qg7 19. Ne4 Be7 ({But not} 19... Be5 $6 20. Qh4 $16) 20. Nxd4 Nd5 21. Nf3 {Hoping for Ne5.} Bd7 22. Ne5 Be8 23. Ng4 (23. Re1 {keeps more tension.} a5 24. a3 a4 25. Bc2 b5 26. Nd3) 23... Bc6 24. Bc2 (24. Ne5 $11 {keeps the balance.} Be8 25. Nf3) 24... Rf8 $17 25. Rxf8 Bxf8 (25... Qxf8 $17 26. h3 Nf4) 26. h4 Kh8 27. Qf2 b6 28. Qd2 Ne7 29. Qd8 Nf5 (29... Ng8 $1 $17) 30. Ne5 $1 $11 {[%cal Re5c6]} Bxe4 31. Bxe4 Kh7 32. Nd7 Be7 33. Qxc7 Bc5+ 34. Kf1 Bd6 (34... Qf7 {seems wilder.} 35. Ke2 Bg1 36. Kd2 Nxh4 37. Qxa7 Kg7) 35. Nf6+ Kh8 36. Qc8+ (36. Qxg7+ $1 $14 Kxg7 37. Ne8+ Kf7 38. Bxf5) 36... Qf8 $15 37. Qxf8+ ({Don't blunder} 37. Qxe6 $2 Ng7 $19) 37... Bxf8 {[%mdl 4096] Endgame KBN-KBN} 38. Nd7 (38. Bd3 $15) 38... Bd6 $17 {Strongly threatening ...Ng3+.} 39. Ke2 Nxh4 40. Kd3 Kg7 41. Kc4 Kf7 $1 42. Kb5 Ke7 43. Kc6 (43. Nxb6 $15 axb6 44. Kxb6) 43... Bf4 (43... Nf5 $142 44. Nf8 Kxf8 45. Bxf5 exf5 46. Kxd6 f4) 44. a4 Nf5 45. b4 {[#]} (45. g4 $142) 45... Bd2 $1 46. Nb8 Bxc3 47. b5 g5 {aiming for ...g4.} 48. Bd3 (48. Bb1 $17 {was worth a try.}) 48... Nd6 (48... Ne3 $19 49. Be4 Nc4) 49. Kc7 {[#] And now Nc6+ would win.} Ne8+ (49... e5 $1 $17 50. Nc6+ Ke6 51. Nxa7 e4) 50. Kb7 $15 Kd6 51. Kxa7 Bd4 52. Kb7 Nf6 53. Nc6 Bf2 54. Nd8 Ke7 ({Black should try} 54... Be3 $15) 55. Nc6+ $11 Kd6 ({Better is} 55... Ke8 $11) 56. Nd8 $1 $17 Nd7 (56... Be3 $17) 57. Bc4 {The position is equal.} Nc5+ 58. Kxb6 Nxa4+ 59. Kb7 Nc5+ 60. Kc8 Nd7 {Weighted Error Value: White=0.16/Black=0.19} 1/2-1/2

[Event "Charlotte Holiday IM 2020"]
[Site "Charlotte"]
[Date "2020.12.28"]
[Round "3.3"]
[White "Li, Eric"]
[Black "Chasin, Nico"]
[Result "0-1"]
[ECO "A63"]
[WhiteElo "2311"]
[BlackElo "2303"]
[Annotator "TA"]
[PlyCount "66"]
[EventDate "2020.12.26"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,65,42,20,49,32,42,36,44,27,28,32,35,18,29,0,0,0,0,0,0,0,0,-100,-9,-168,-148,-141,-146,-222,-225,-283,-267,-850,-840,-840,-820,-926,-917,-929,-897,-2436,-2184,-29995,-29996,-29996,-29997,-29999]} 1. d4 Nf6 2. c4 e6 3. g3 c5 4. d5 exd5 5. cxd5 d6 6. Nc3 g6 7. Bg2 a6 8. a4 Bg7 9. Nf3 O-O 10. O-O Nbd7 11. Bf4 Ne8 {A63: Modern Benoni: Fianchetto Variation: 9...Nbd7.} 12. Qc2 Rb8 13. a5 b5 {White is slightly better.} 14. axb6 {[#]} Nxb6 $146 ({Predecessor:} 14... Qxb6 15. Ra2 h6 16. Nd2 g5 17. Nc4 Qc7 18. Bd2 Ne5 19. Na5 Bd7 20. f4 gxf4 21. gxf4 {½-½ (31) Cvitan,E (2027)-Osmanovic,K (2274) Zadar 2015}) 15. e4 Nc7 16. Rfc1 Bg4 17. Nd2 g5 18. Be3 f5 19. exf5 Bxf5 20. Be4 Qf6 21. g4 (21. Bxf5 $11 {keeps the balance.} Qxf5 22. Qxf5 Rxf5 23. Nde4) 21... Bxe4 (21... Bxg4 $17 {White must now prevent ...Qh6.} 22. Bxh7+ Kh8) 22. Qxe4 $2 {White does not recover from this.} (22. Ndxe4 $11 {and White has nothing to worry.} Qf3 23. Nxg5 Qxg4+ 24. Kh1) 22... Rbe8 23. Qg2 Qg6 24. Nf1 {[#]} (24. h3 $17 {might work better.}) 24... Nc4 $1 $19 25. Ra2 Ne5 {Strongly threatening ...Nf3+.} 26. Rd1 $2 (26. Nd2) 26... Nf3+ 27. Kh1 Nh4 28. Qh3 Bxc3 29. bxc3 {[#]} Nxd5 $1 {[%mdl 512]} 30. Rxa6 (30. Rxd5 Qe4+) 30... Nxc3 {( -> ...Qe4+)} 31. Raxd6 Qe4+ {Black mates.} 32. f3 Rxf3 {[%cal Rf3f1]} 33. Nd2 Rf1# {Weighted Error Value: White=0.96/Black=0.10} 0-1

[Event "Charlotte Holiday IM 2020"]
[Site "Charlotte"]
[Date "2020.12.28"]
[Round "3.4"]
[White "Diulger, Alexey"]
[Black "Vijay, Keerthi K."]
[Result "1/2-1/2"]
[ECO "D07"]
[WhiteElo "2298"]
[BlackElo "2242"]
[Annotator "TA"]
[PlyCount "30"]
[EventDate "2020.12.26"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,30,39,29,8,29,2,22,2,-5,0,35,0,38,43,60,42,73,29,45,25,43,21,22]} 1. c4 Nc6 2. d4 d5 3. e3 e6 4. Nf3 Nf6 5. Be2 Bd6 6. Nc3 {D07: Queen's Gambit: Chigorin Defence.} O-O 7. O-O dxc4 {[#]} 8. e4 $146 {[#] aiming for e5.} ({Predecessor:} 8. Bxc4 e5 9. dxe5 Nxe5 10. Be2 Qe7 11. Qc2 Nxf3+ 12. Bxf3 Bg4 13. Bxb7 Rab8 14. Ba6 Bxh2+ 15. Kxh2 {0-1 (25) Riddell,R (1307)-Pennella,D ICCF email 2017}) 8... e5 {Threatens to win with ...exd4.} 9. d5 Ne7 10. Nd2 a6 11. Nxc4 b5 12. Nxd6 Qxd6 13. a3 c6 14. dxc6 Qxc6 15. Bg5 h6 {Weighted Error Value: White=0.16/Black=0.11} 1/2-1/2

[Event "Charlotte Holiday IM 2020"]
[Site "Charlotte"]
[Date "2020.12.28"]
[Round "3.5"]
[White "Velikanov, Alexander"]
[Black "Martin Del Campo C., Roberto"]
[Result "1/2-1/2"]
[ECO "B30"]
[WhiteElo "2308"]
[BlackElo "2313"]
[Annotator "TA"]
[PlyCount "41"]
[EventDate "2020.12.26"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,25,22,22,35,24,50,23,20,0,0,-5,0,0,-2,6,0,-4]} 1. e4 c5 2. Nc3 Nc6 3. Nf3 e5 4. Bc4 d6 5. d3 Be7 6. O-O h6 {B30: Sicilian: 2...Nc6 3 Bb5, lines without ...g6.} 7. Ne1 Bg5 8. f4 (8. Qh5 {keeps more tension.} g6 9. Bxg5 Qxg5 10. Qxg5 hxg5 11. Nf3) 8... exf4 {White has an edge.} 9. Bxf4 {The position is equal.} Bxf4 10. Rxf4 {[#] Black must now prevent Qh5!} Nf6 11. Nd5 Nxd5 12. Bxd5 O-O 13. Qh5 {[#]  Weighted Error Value: White=0.10/Black=0.06} {Predecessor:} Be6 $146 14. Nf3 Nb4 15. Rf1 Bxd5 16. exd5 Nxc2 17. h4 Qd7 18. Nd2 Rae8 19. Ne4 f5 20. Rxf5 Rxf5 21. Rxf5 {0-1 (54) Chrz,P (2088)-Vales,V (2180) Czechia 2013} 1/2-1/2

[Event "Charlotte Holiday IM 2020"]
[Site "Charlotte"]
[Date "2020.12.28"]
[Round "4.1"]
[White "Andrianov, Nikolai"]
[Black "Li, Eric"]
[Result "1-0"]
[ECO "A09"]
[WhiteElo "2392"]
[BlackElo "2311"]
[Annotator "TA"]
[PlyCount "129"]
[EventDate "2020.12.26"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,129,7,-5,-16,-10,-24,-30,-12,-15,-20,-23,-27,-14,-19,-11,-11,-12,-5,-28,-35,-35,-40,-35,-33,-55,-36,-35,-38,-31,-54,25,0,53,1,70,70,70,70,69,70,68,69,63,69,65,55,72,50,57,56,136,115,157,154,140,127,114,122,150,130,152,143,154,152,157,166,197,177,183,151,183,126,126,106,170,185,193,202,259,237,262,260,259,259,254,252,242,139,230,129,127,128,234,270,249,180,220,246,220,220,427,406,420,422,906,469,882,855,1265,1098,1964,1803,1838,1770,29983,29984,29986,29987,29987,29988,29988,29989]} 1. Nf3 d5 2. c4 d4 3. b4 f6 4. e3 e5 5. c5 a5 6. Nxe5 {A09: Réti Opening: 1 Nf3 d5 2 c4.} fxe5 7. Qh5+ Ke7 8. Qxe5+ {Black has an edge.} Be6 {Hoping for ...Nc6.} 9. Bc4 $1 {[%csl Gc4][%cal Re5e6]} (9. exd4 $2 Nc6 $19) 9... Qd7 10. b5 (10. exd4 $2 Nc6 $19) 10... Kf7 11. Bxe6+ (11. Qxd4 Qxd4 12. Bxe6+ Kxe6 $17) (11. Na3 {is interesting.} Bxc4 12. Nxc4 Nf6 13. exd4 Qxb5 14. Qxc7+ Nbd7 15. d3) 11... Qxe6 12. Qxc7+ Qd7 13. Qxd7+ Nxd7 14. exd4 g6 15. Bb2 {[#]} Bg7 $146 {[%mdl 1024] Black has compensation.} ({Predecessor:} 15... Kg7 16. O-O Ndf6 17. Na3 Nd5 18. f4 Be7 19. Rae1 Ngf6 20. Nc4 a4 21. f5 Rhe8 {½-½ (47) Malar,J-Baydashkin,A ICCF email 2015}) 16. Bc3 $1 Nh6 {aiming for ...Nf5.} 17. Na3 Nf5 18. Nc2 Rhe8+ 19. Kd1 Re4 (19... Red8 $15 20. c6 bxc6 21. bxc6 Nf6) 20. f3 (20. Rc1 {seems wilder.} Nf6 21. Ne3 Rae8 22. g3 h5 23. Rf1) 20... Rxd4 (20... Ree8 $11) 21. Nxd4 (21. c6 $14 bxc6 22. bxc6) 21... Nxd4 (21... Bxd4 $11 22. c6 bxc6) 22. c6 $1 $14 {[%cal Rc6d7]} bxc6 23. bxc6 Nxc6 24. Bxg7 Kxg7 25. Rc1 Ra6 26. Re1 Kf7 27. Re4 Rb6 28. a3 Nf6 29. Rec4 Ne5 (29... Ne7 $14) 30. Rc7+ Ke6 31. f4 $1 {[%cal Rf4e5]} Ned7 32. R1c6+ $1 Kd5 33. Rxb6 Nxb6 34. d3 $1 Kd6 35. Ra7 a4 36. Kd2 Ke6 37. Ke3 h5 38. g3 Nfd7 39. h3 Kd6 40. g4 ({White should try} 40. Kf3 $18) 40... hxg4 $16 41. hxg4 Nd5+ (41... Nb8 $16) 42. Kf3 $18 N5b6 43. Ra5 Ke6 44. Ke4 Kd6 45. Rg5 Nf8 46. f5 $1 {[%cal Rf5g6]} gxf5+ 47. Rxf5 ({But not} 47. gxf5 $6 Nd5 $16) 47... Ne6 48. g5 (48. Ra5 $18) 48... Nc8 (48... Nc5+ $16 49. Kf3 Nd5) 49. d4 (49. Rd5+ $1 $18 Ke7 50. Kf5) 49... Ke7 {Strongly threatening ...Nd6+.} 50. Re5 {d5 is the strong threat.} Kf7 {[#]} (50... Kd6 $16 {is a better defense.} 51. Rd5+ Ke7) 51. Ra5 $1 Ne7 52. Kd3 ({Don't take} 52. Rxa4 $6 Nxg5+ 53. Ke5 Nf3+ 54. Kf4 Nd2 $16) 52... Nxd4 53. Rxa4 ({Not} 53. g6+ Kxg6 54. Rxa4 Ndc6 $14) 53... Ne6 {[#]} 54. Ra5 Kg6 $2 (54... Ke8 55. Ke4 Kd7) 55. Re5 Kf7 56. a4 Ng6 (56... Nc7 $142 57. Kc4 Ke8) 57. Rf5+ Ke7 58. a5 Kd6 59. Rf6 Ngf4+ 60. Ke4 Nd5 61. Rh6 Ne7 62. a6 {White mates.} Kd7 {[#]} 63. Rxe6 $1 {[%mdl 576] Promotion} Kxe6 64. a7 Nd5 65. a8=Q {Weighted Error Value: White=0.09/Black=0.34} 1-0

[Event "Charlotte Holiday IM 2020"]
[Site "Charlotte"]
[Date "2020.12.28"]
[Round "4.2"]
[White "Vijay, Keerthi K."]
[Black "Velikanov, Alexander"]
[Result "1/2-1/2"]
[WhiteElo "2242"]
[BlackElo "2308"]
[Annotator "NA"]
[PlyCount "10"]
[EventDate "2020.12.26"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

1. d4 {[%emt 1:30:30]} g6 {[%emt 1:30:30]} 2. Nc3 {[%emt 0:00:30]} Bg7 {[%emt 0:00:30]} 3. e4 {[%emt 0:00:30]} c6 {[%emt 0:00:30]} 4. f4 {[%emt 0:00:30]} d5 {[%emt 0:00:30]} 5. exd5 cxd5 1/2-1/2

[Event "Charlotte Holiday IM 2020"]
[Site "Charlotte"]
[Date "2020.12.28"]
[Round "4.3"]
[White "Chasin, Nico"]
[Black "Diulger, Alexey"]
[Result "0-1"]
[ECO "B13"]
[WhiteElo "2303"]
[BlackElo "2298"]
[Annotator "TA"]
[PlyCount "98"]
[EventDate "2020.12.26"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,98,18,11,4,0,0,0,0,0,5,0,10,0,0,-27,-32,-25,-40,-102,-108,-115,-77,-119,-116,-128,-123,-200,-191,-202,-187,-200,-200,-198,-202,-192,-192,-207,-168,-264,-255,-259,-246,-552,-645,-561,-551,-549,-542,-538,-530,-532,-495,-606,-595,-585,-593,-589,-575,-728,-716,-876,-621,-605,-454,-443,-443,-422,-351,-524,-538,-599,-606,-601,-552,-661,-662,-587,-661,-812,-797,-838,-802,-29981,-29982,-29987,-29988,-29988,-29988,-29990,-29990]} 1. e4 d6 2. d4 c6 3. Nf3 Bg4 4. Bc4 d5 5. exd5 cxd5 6. Bb5+ Nc6 {B13: Caro-Kann: Exchange Variation and Panov-Botvinnik Attack.} 7. h3 Bxf3 8. Qxf3 Qa5+ {The position is equal.} 9. Nc3 e6 10. O-O Nf6 {[#]} 11. Bd2 $146 {Strongly threatening Nxd5.} ({Predecessor:} 11. Qg3 a6 12. Bxc6+ bxc6 13. Rd1 Qd8 14. b3 Nh5 15. Qf3 Nf6 16. Na4 Bd6 17. c4 Nd7 18. Bf4 Bxf4 19. Qxf4 dxc4 20. bxc4 {½-½ (26) Blomqvist,E (2503)-Houska,J (2396) Norway 2018}) 11... Qb6 12. Rfe1 Be7 13. Qg3 O-O 14. Bd3 {White is on the road to losing.} (14. Be3 $15) 14... Qxd4 $17 15. a3 Nh5 16. Qf3 g6 17. g4 {[#]} Qf6 $1 18. Qe3 {[#]} (18. Qxf6 $17 Nxf6 19. Bg5) (18. Kg2 Qxf3+) 18... d4 $1 $19 {[%mdl 64] Double Attack} 19. Qe4 dxc3 20. Bxc3 Qg5 {White must now prevent ...Nf4.} 21. h4 Qxh4 22. gxh5 Qxh5 23. Re3 Bd6 24. Kg2 (24. Qg2 $142 Bf4 25. Rh3) 24... Qh2+ 25. Kf1 Bc5 26. Rf3 $2 (26. Re2 {nothing else works.}) 26... Qh1+ 27. Ke2 Qxa1 28. Qh4 {[#]} Nd4+ $1 29. Bxd4 Bxd4 30. Qxd4 e5 31. Qh4 e4 32. Bxe4 Rae8 {Threatens to win with ...f5.} ({And not} 32... Rfe8 33. Rxf7 h5 34. Re7 $15) 33. Rh3 {[%csl Gh3][%cal Rh4h7]} h5 {And now ...f5 would win.} 34. Rg3 Qxb2 35. Kf1 Qa1+ 36. Kg2 Qe5 37. Bxb7 Kg7 38. c4 Qe7 39. Qxe7 (39. Qd4+ {was the only defense.} Qe5 40. Qc3) 39... Rxe7 {[%mdl 4096] Endgame KRR-KRB} 40. Bd5 Rb8 41. Rd3 Rb2 42. c5 Ree2 43. Rf3 f5 44. c6 Rbc2 45. Rf4 Kf6 {Hoping for ...Ke5!} 46. Kg3 g5 {Black mates.} 47. Rf3 h4+ 48. Kg2 g4 49. Rf4 Ke5 {[%mdl 64] Double Attack.  Weighted Error Value: White=0.38/Black=0.05} 0-1

[Event "Charlotte Holiday IM 2020"]
[Site "Charlotte"]
[Date "2020.12.28"]
[Round "4.4"]
[White "Vivekananthan, Anish"]
[Black "Martin Del Campo C., Roberto"]
[Result "1/2-1/2"]
[ECO "B23"]
[WhiteElo "2305"]
[BlackElo "2313"]
[Annotator "TA"]
[PlyCount "241"]
[EventDate "2020.12.26"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,241,5,10,10,16,10,24,36,46,7,14,19,23,15,12,16,16,14,16,14,18,18,24,18,21,10,10,9,2,0,31,-11,-7,-8,-7,-24,0,-24,0,-36,-16,-23,-21,-37,-33,-34,-24,-60,-28,-59,-53,-70,-72,-51,0,-148,-139,-139,-143,-137,-139,-155,-120,-112,-125,-153,-153,-152,-133,-137,-135,-143,-128,-134,-134,-141,-132,-185,-141,-225,-156,-134,-147,-145,-156,-137,-122,-216,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-3,-5,-25,0,0,0,0,0,-897,-838,-792,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-368,0,-368,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-368,0,0]} 1. e4 c5 2. Nc3 Nc6 3. Bb5 Nd4 4. Nf3 Nxb5 5. Nxb5 a6 6. Nc3 {B23: Closed Sicilian: Lines without g3.} d6 {The main line 6...d6 scores better than 6...e6.} 7. d4 cxd4 $1 8. Qxd4 {White has an edge.} e5 9. Qd3 h6 10. Nd2 Be6 11. Nc4 Rc8 12. Ne3 Nf6 13. a4 Qc7 14. O-O Be7 15. Bd2 O-O 16. Rfd1 Rfd8 {[#]} 17. Rac1 $146 ({Predecessor:} 17. Be1 Rd7 18. a5 h5 19. h3 g6 20. b3 Qc6 21. Ra2 Rdc7 22. Qe2 Nxe4 23. Ncd5 Nc5 24. Nxc7 Rxc7 25. Qd2 Ne4 26. Qd3 Nc5 27. Qd2 Ne4 28. Qd3 Nc5 29. Qd2 {½-½ (28) Gharamian,T (2626)-Sasikiran,K (2677) Germany 2017}) 17... Bc4 18. Nxc4 Qxc4 19. Be3 Rd7 20. f3 Qb4 21. Rb1 Bd8 22. Kh1 Qc4 23. Ra1 Ba5 {[%cal Ra5c3]} 24. Bd2 Bb6 25. Be1 Bd4 26. Ra3 Qxd3 27. Rxd3 Kf8 28. g3 Ke7 29. Ra1 Ke6 30. Rc1 Rdc7 31. Rcd1 Rc6 (31... Ne8 $15) 32. Kg2 (32. Rxd4 $11 exd4 33. Ne2) 32... d5 $17 33. exd5+ Nxd5 34. Kh3 Bxc3 35. bxc3 Nxc3 36. Bxc3 Rxc3 {[%mdl 4096] Endgame KRR-KRR} 37. Rd6+ Kf5 38. f4 exf4 39. R1d5+ Ke4 40. Rd4+ Ke3 41. Rxf4 R8c7 42. Rdd4 Rxc2 43. Kg4 (43. Rb4 $17) 43... Re7 ({But not} 43... Rxh2 $2 44. Rfe4+ Kf2 45. Rd2+ Kf1 46. Rd1+ Kf2 47. Rd2+ Kf1 48. Rxh2 $18) 44. h4 (44. Rb4 $17) 44... g6 45. Rb4 f5+ 46. Kh3 Re4 47. Rb3+ Ke2 48. Rff3 (48. Rxb7 $17 Rxf4 49. gxf4) 48... g5 $2 (48... Rxa4 $19 49. Rfe3+ Kd2) 49. hxg5 $11 hxg5 50. Rxf5 g4+ 51. Kh4 Rc7 52. a5 Rh7+ 53. Kg5 Rg7+ 54. Kf6 Rd7 55. Kg5 Red4 56. Kh4 Rg7 57. Rb2+ (57. Ra3 {feels hotter.} Rc4 58. Re5+ Kd1 59. Rf5 Rh7+ 60. Kg5) 57... Kd3 58. Rff2 Kc4 59. Rfc2+ Kd5 60. Rc8 Ra4 61. Rf8 $2 {[%mdl 8192] [#]} (61. Rd2+ $11 Ke6 62. Re8+ Kf7 63. Rh8) 61... Ra1 $1 $19 {[%cal Ra1h1]} 62. Rd2+ Ke6 $2 ({Black should try} 62... Kc4 $19 63. Rc8+ Kb4 64. Rd4+ Kxa5 65. Rd5+ b5) 63. Re8+ $11 Kf6 64. Rd6+ $1 Kf5 {[%cal Ra1h1]} (64... Kf7 {is more complex.} 65. Rd7+ Kxe8 66. Rxg7 Ra4 67. Rxb7 Rxa5 68. Kxg4 Ra1) 65. Rd5+ Kf6 {[%cal Ra1h1]} 66. Rd6+ Kf7 {[%cal Ra1h1]} 67. Rd7+ Kxe8 {[%cal Ra1h1]} 68. Rxg7 Rxa5 69. Rxb7 {KR-KR} Ra4 70. Kg5 Kd8 71. Kf5 Kc8 72. Ra7 Kb8 73. Rg7 a5 74. Ke5 Rb4 75. Kd5 a4 76. Kc5 Re4 77. Kd5 a3 78. Kxe4 {White wants to mate with Rd7.} a2 79. Rxg4 a1=Q {KQ-KR} 80. Rf4 Kc7 (80... Qb1+ {keeps more tension.} 81. Ke3 Kc7 82. Rf7+ Kb6 83. Rf4 Qb3+) 81. Kf3 Qb2 82. Kg4 Kd6 83. Kg5 Qd2 84. Kh4 Ke5 85. Kg4 Qg2 86. Kh4 Qh1+ 87. Kg4 Ke6 88. Rf2 Qh6 (88... Qa1 {is interesting.} 89. Rf4 Kd7 90. Kh4 Qg1 91. Kg4 Qd1+) 89. Rf4 Qg6+ 90. Kh3 Ke5 {Strongly threatening ...Qh5+.} 91. Kh2 Qc2+ 92. Kh3 Qe2 93. Kh4 Qh2+ 94. Kg4 Qh1 95. Rf5+ Ke4 96. Rf4+ $2 {[%mdl 8192]} (96. Rf7 $1 $11 {and White has nothing to worry.} Ke3 97. Rf6) 96... Ke3 $19 97. Rf5 $2 {[%mdl 8192]} (97. Rf6 $1 $11 Qe4+ 98. Rf4) 97... Qh2 $2 (97... Qe4+ $19 98. Rf4 Qe6+ 99. Kg5 Qg8+ 100. Kh4 Qh8+ 101. Kg5 Qg7+ 102. Kh4 Qh6+ 103. Kg4 Ke2) 98. Rf3+ $11 Ke4 (98... Kd2 {keeps more tension.} 99. Rf4 Qe2+ 100. Kh3 Kc2 101. Rf6 Kb1) 99. Rf4+ Ke5 {Threatens to win with ...Qc2.} 100. Rf5+ Ke6 101. Rf4 Qe2+ 102. Kh4 Ke5 103. Kh3 Qc2 104. Kh4 (104. Rh4 {seems wilder.} Qd2 105. Rf4 Kd5 106. Rf6 Qb2 107. Rg6) 104... Qh7+ 105. Kg4 $1 Qh6 106. Kf3 Qh3 {And now ...Ke6 would win.} 107. Kf2 Qh1 108. Rh4 Qd1 {White must now prevent ...Qc2+.} (108... Qa1 {with more complications.} 109. Kg2 Qa2+ 110. Kf3 Kf5 111. Rf4+ Ke6) 109. Rf4 Qd2+ 110. Kf3 Qd7 111. Kg2 Qh7 112. Kf3 Qh2 113. Rh4 Qg1 {aiming for ...Qf1+.} 114. Rf4 Qf1+ 115. Kg4 Qg2 {...Qe2+ is the strong threat.} (115... Qa1 {keeps more tension.} 116. Kh3 Ke6 117. Rh4 Qe1 118. Rh6+ Kd7) 116. Kh4 Qh2+ 117. Kg4 Qh1 118. Rf5+ Ke4 {( -> ...Qd1+)} 119. Rf4+ Ke3 {Hoping for ...Qd1+.} 120. Rf5 $2 {[%mdl 8192] [#]} (120. Rf6 $11 Qe4+ 121. Rf4) 120... Qg2 $2 (120... Qe4+ $1 $19 121. Rf4 Qg6+ 122. Kh3 Qh5+ 123. Kg2 Qd5+ 124. Kh2 Qd7) 121. Rf4 {Weighted Error Value: White=0.14/Black=0.12} 1/2-1/2

[Event "Charlotte Holiday IM 2020"]
[Site "Charlotte"]
[Date "2020.12.28"]
[Round "4.5"]
[White "Liang, Jason"]
[Black "Tsay, Vincent"]
[Result "1/2-1/2"]
[ECO "C18"]
[WhiteElo "2317"]
[BlackElo "2266"]
[Annotator "TA"]
[PlyCount "149"]
[EventDate "2020.12.26"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,149,25,27,24,22,20,28,24,17,12,30,17,29,27,32,0,0,0,0,-30,-4,-8,-18,-13,0,-19,-19,-27,-6,-11,0,-3,-5,-87,-63,-92,-36,-95,-23,-23,-22,-23,-29,-31,-27,-45,-31,-31,-29,-29,-24,-29,14,0,0,0,14,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Ba5 6. b4 cxd4 7. Nb5 Bc7 8. f4 Bd7 {The main line 8...Bd7 scores better than 8...Ne7.} 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. Rf2 Bb5 (13... Nd7 {looks sharper.} 14. Qd2 g6 15. Rf1 Nc6 16. Qf2 Bb5) 14. a4 Bxd3 15. cxd3 Nf5 {[#]} ({Much worse is} 15... Qxb4 $6 16. Ba3 $16) 16. Qd2 $146 {[%mdl 1024] White has compensation.} ({Predecessor:} 16. h3 O-O 17. Bb2 Ne7 18. Rc2 Nd7 19. a5 Qb5 20. Rc7 Rfc8 21. Nxd4 Qxb4 22. Bc3 Qxd4+ 23. Bxd4 Rxc7 {1-0 (72) Milde,L (2079)-Droessler,U (2310) ICCF email 2018}) 16... h5 17. Ba3 O-O 18. Qc1 Nc6 {[%cal Bb8c6,Bc6e7,Be7g6][%mdl 32]} 19. b5 Nce7 20. Bc5 Qa5 21. Qa3 (21. Bxe7 $5 Nxe7 22. Nxd4 $11) 21... Rfe8 22. Bb4 Qb6 23. Rc1 Ng6 24. Bc5 Qa5 25. Bb4 (25. Nxd4 $11 Nxd4 26. Bxd4) 25... Qd8 $17 26. Bd2 Rc8 (26... Ngh4 $17 27. Ne1 Ng6) 27. Rff1 {[#]} (27. Rxc8 $15 Qxc8 28. Rf1) 27... Re7 ({Black should play} 27... Ngh4 $1 $17 28. Rxc8 Nxf3+ 29. Rxf3 Qxc8) 28. Ba5 b6 29. Bd2 Rec7 30. Rxc7 Rxc7 31. Rc1 Qc8 32. Rxc7 Qxc7 33. Qc1 Qxc1+ 34. Bxc1 $11 {[%mdl 4096] Endgame KBN-KNN} Kf8 35. Kf2 {The position is equal.} f6 36. g3 Ke7 37. h3 fxe5 38. fxe5 Kd7 39. Bg5 Nh6 (39... Kc8 {is interesting.} 40. Bd2 Kd7 41. Bg5) 40. Bxh6 gxh6 {KN-KN} 41. Ke2 Ke7 42. Kd2 Kd7 43. Kc2 Ke7 44. Kb3 Kd7 45. Kb2 Ke7 46. Kc1 Kd7 47. Kd1 Ke7 48. Ke1 Kd7 49. Ke2 Ke7 50. h4 Kd7 51. Kf2 Ke7 52. Kg2 Kd7 53. Kh3 Ke7 54. Kh2 Kf7 55. Kg1 Ke7 56. Kf1 Kd7 57. Ke1 Ke7 58. Kd1 Kd7 59. Kc1 Ke7 60. Kb2 Kd7 61. Kb3 Ke7 62. Kb4 Kd7 63. a5 Ke7 64. a6 Kd7 65. Kb3 Ke7 66. Kc2 Kd7 67. Kd2 Ke7 68. Ke2 Kd7 69. Kf2 Ke7 70. Kg2 Kd7 71. Kh3 Ke7 72. Kh2 Kd7 73. Kg2 Ke7 74. Kh3 Kf7 75. Kg2 {Weighted Error Value: White=0.11/Black=0.12} 1/2-1/2

[Event "Charlotte Holiday IM 2020"]
[Site "Charlotte"]
[Date "2020.12.28"]
[Round "5.1"]
[White "Diulger, Alexey"]
[Black "Andrianov, Nikolai"]
[Result "1/2-1/2"]
[WhiteElo "2298"]
[BlackElo "2392"]
[Annotator "NA RC"]
[PlyCount "13"]
[EventDate "2020.12.26"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,11,18,19]} 1. e4 {[%emt 1:30:30]} e5 {[%emt 1:30:30]} 2. Nf3 {[%emt 0:00:30]} Nf6 {[%emt 0:00:30]} 3. Nxe5 {[%emt 0:00:30]} d6 {[%emt 0:00:30]} 4. Nf3 {[%emt 0:00:30]} Nxe4 {[%emt 0:00:30]} 5. Qe2 {[%emt 0:00:30]} Qe7 {[%emt 0:00:30]} 6. d3 $11 {[%emt 0:00:30]} Nf6 {[%emt 0:00:30]} 7. Bg5 {[%emt 0:00:30]} 1/2-1/2

[Event "Charlotte Holiday IM 2020"]
[Site "Charlotte"]
[Date "2020.12.29"]
[Round "5.2"]
[White "Li, Eric"]
[Black "Liang, Jason"]
[Result "1-0"]
[ECO "D35"]
[WhiteElo "2311"]
[BlackElo "2317"]
[Annotator "TA"]
[PlyCount "157"]
[EventDate "2020.12.26"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,157,13,9,0,27,28,38,4,4,20,11,18,65,69,107,118,115,69,58,58,92,104,79,85,251,253,264,246,320,334,382,375,392,331,433,350,350,350,350,350,601,595,576,556,652,460,623,336,515,506,568,277,397,397,397,370,396,373,390,256,275,274,273,275,401,0,380,359,393,440,440,432,438,438,437,433,415,395,517,522,494,364,504,412,634,363,333,0,607,606,506,479,733,726,666,661,634,628,3931,2531,29959,10026,29974,29975,29978,29979,29978,29979,29976,29970,29970,29971,6740,6087,29974,29975,29979,29980,29981,29982,29982,29982,29982,29980,29980,29981,29981,29982,29982,29983,29983,29984,29989,29989,29993,29994,29994,29986,29993,29994,29998,4610]} 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. cxd5 exd5 5. Bg5 c6 6. e3 Bd6 7. Bd3 O-O 8. Nf3 Re8 9. O-O Nbd7 10. h3 {D35: Queen's Gambit Declined: Exchange Variation.} Nf8 {[#]} 11. Qa4 $146 ({Predecessor:} 11. Qc2 Ng6 12. Rfe1 h6 13. Bxf6 Qxf6 14. e4 dxe4 15. Nxe4 Qd8 16. Nxd6 Rxe1+ 17. Rxe1 Qxd6 {1-0 (42) Manzone,A (2404)-Levine,J (2073) Chess.com INT 2020}) 11... Bd7 12. Rae1 {White is slightly better.} Qc8 13. Bxf6 gxf6 14. Ne2 Ng6 15. Ng3 f5 16. Qc2 Re4 17. Bxe4 fxe4 18. Ne5 Bxh3 {White leaves nothing to chance now.} 19. f4 (19. gxh3 $6 Bxe5 20. dxe5 Qxh3 $11) 19... Bg4 20. Qb3 ({Don't play} 20. Nxg4 Qxg4 21. Qf2 Kh8 $15) 20... Bxe5 $2 (20... a5 $16) 21. fxe5 $18 ({Less strong is} 21. dxe5 h5 $14) 21... Qd7 22. Rf6 Rf8 23. Ref1 Qc7 24. Qc2 Qe7 25. a3 a5 26. Qc3 Qc7 27. b4 axb4 28. axb4 ({Don't take} 28. Qxb4 Ne7 $18) 28... Qb6 $2 (28... Re8 29. b5 Re6 30. Rxf7 Qxf7) 29. Qd2 Qc7 30. Qf2 Qe7 31. Kh2 Qc7 32. Nh1 Qe7 (32... Be6 {keeps fighting.} 33. Ng3 b6) 33. Qg3 Be6 34. Qe1 (34. Qg5 $142 Re8 35. Ng3) 34... Ra8 (34... Kh8 $142 35. Ng3 Rg8) 35. Ng3 Qf8 36. Kg1 {[#] And now Rxe6! would win.} Qh6 37. Qf2 Rf8 38. Ne2 Qg7 39. Ra1 Rb8 40. Ng3 {[%cal Be2g3,Bg3f5,Bf5d6][%mdl 32]} Qh6 (40... Ne7 {was worth a try.} 41. Qf4 Ng6) 41. Rf1 $2 (41. Nf5 $18 Qg5 42. Ra2) 41... Qg5 {[%mdl 8192]} (41... Rf8 $1 $11) 42. Nf5 Ra8 43. Nd6 {[%mdl 64] [#] Double Attack} Nh4 44. Nxf7 Bxf7 45. Rxf7 {Black must now prevent Rf8+.} Nf3+ 46. Rxf3 exf3 47. Qxf3 {[%mdl 4096] Endgame KQR-KQR} Qg7 48. Qh3 Kh8 49. Rf3 Qg6 50. Kh2 Re8 (50... Rb8 $142 51. Rf6 Qg8) 51. Rg3 Qf7 52. Rf3 $2 (52. Qh4) 52... Qg6 $1 53. Rf6 Qg7 54. Qf3 Ra8 (54... Rb8 $142 55. Rf7 Qg6) 55. Rf7 Qh6+ 56. Qh3 Qxh3+ 57. Kxh3 {KR-KR} Ra3 58. Rxb7 Rxe3+ 59. Kg4 Re4+ 60. Kf5 Rxd4 61. e6 Re4 62. Kf6 {[%cal Rb7b8]} Rf4+ 63. Ke5 Re4+ 64. Kd6 d4 65. Rd7 d3 66. Ke7 {White mates.} Rxb4 67. Rxd3 c5 68. Kf6 {[%cal Rd3d8]} Rf4+ 69. Ke5 Rf2 70. Rd8+ Kg7 71. e7 Rxg2 72. e8=Q Re2+ 73. Kf5 {[%csl Gd8][%cal Re8f8]} Rxe8 74. Rxe8 {KR-KPP} Kh6 75. Rc8 Kh5 76. Rxc5 Kh4 77. Rc4+ Kh5 78. Rc6 h6 79. Ra6 {Weighted Error Value: White=0.52/Black=0.84} (79. Kf4 $142 Kh4 80. Rxh6#) 1-0

[Event "Charlotte Holiday IM 2020"]
[Site "Charlotte"]
[Date "2020.12.29"]
[Round "5.3"]
[White "Tsay, Vincent"]
[Black "Vivekananthan, Anish"]
[Result "1-0"]
[ECO "E05"]
[WhiteElo "2266"]
[BlackElo "2305"]
[Annotator "TA"]
[PlyCount "75"]
[EventDate "2020.12.26"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,75,22,8,0,20,-4,38,33,66,71,125,118,123,116,118,118,124,122,182,140,175,160,160,158,170,175,158,166,192,182,189,192,216,193,270,231,262,255,377,367,357,222,224,222,397,243,338,228,312,258,294,295,283,227,297,287,314,310,291,289,713,703]} 1. d4 Nf6 2. Nf3 d5 3. c4 e6 4. g3 Be7 5. Bg2 O-O 6. O-O dxc4 7. Qc2 a6 8. a4 Bd7 9. Bg5 {E05: Open Catalan: 5 Nf3 Be7.} Bc6 10. Rd1 Be4 11. Qxc4 {White is slightly better.} b5 12. Qc1 b4 (12... Nbd7 $142) 13. Nbd2 $16 {[#] Bxf6 is the strong threat.} Bb7 $146 ({Predecessor:} 13... Bd5 14. Bxf6 gxf6 15. e4 Bb7 16. d5 e5 17. Bh3 Bc8 18. Bxc8 Qxc8 19. Nh4 Kh8 {1-0 (26) Erdos,V (2618)-Nemeth,Z (2210) Ajka 2020}) 14. Bxf6 Bxf6 15. Qc2 Ra7 16. Rac1 Nc6 (16... Bxf3 $16 17. Nxf3 Qd6) 17. e3 Qb8 18. Ne1 Ne7 19. Qxc7 Qa8 {White must now prevent ...Bxg2.} 20. Bxb7 Rxb7 21. Qc2 Ng6 22. Nb3 a5 23. Qe4 Rfb8 24. Nd3 Qa7 (24... Be7 {is a better defense.} 25. h4 Bd6) 25. Rc5 $18 Bd8 26. Rdc1 Ne7 (26... Rc7 {was necessary.} 27. Kg2 Rd7) 27. Ne5 Bb6 28. Nc6 Nxc6 29. Rxc6 {Hoping for Rc8+.} ({Weaker is} 29. Qxc6 Bxc5 30. Rxc5 Qa8 $11) 29... Bd8 $2 (29... Rd7 30. Nc5 Rc7 31. Rxc7 Qxc7) 30. Qe5 h6 31. h4 Ra8 32. Qf4 Rd7 33. Qe4 Rb8 34. R1c4 Rd5 35. Nc5 Qe7 36. Nd3 Qb7 37. Qf4 {Threatens to win with Rc7!} Ra8 $2 {[#]} (37... Rd7 38. R6c5 Qa7) 38. Rc7 $1 {[%mdl 512] Black did not feel at home in the position after the opening.  Weighted Error Value: White=0.22/Black=0.38} 1-0

[Event "Charlotte Holiday IM 2020"]
[Site "Charlotte"]
[Date "2020.12.29"]
[Round "5.4"]
[White "Velikanov, Alexander"]
[Black "Chasin, Nico"]
[Result "0-1"]
[ECO "B30"]
[WhiteElo "2308"]
[BlackElo "2303"]
[Annotator "TA"]
[PlyCount "72"]
[EventDate "2020.12.26"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,72,37,27,37,32,30,39,0,0,4,0,-83,-73,-256,-251,-259,-251,-260,-260,-246,-245,-280,-237,-226,-247,-245,-227,-282,-287,-431,-426,-434,-400,-433,-455,-466,-461,-477,-373,-741,-739,-738,-734,-743,-718,-885,-846,-836,-750,-1333,-1132,-1279,-1215,-29968,-29968,-29971,-29966,-29986,-29983,-29981,-29982,-29990,-29991,-29994,-29995]} 1. e4 c5 2. Nf3 e6 3. Nc3 Nc6 4. Bb5 Qc7 5. O-O Nge7 6. d4 {B30: Sicilian: 2...Nc6 3 Bb5, lines without ...g6.} cxd4 7. Nxd4 a6 8. Bxc6 {White is slightly better.} bxc6 {[%cal Bb7c6,Bc6c5][%mdl 32] [#]} 9. f4 $146 ({Predecessor:} 9. Be3 d5 10. Nb3 Ng6 11. f4 Rb8 12. f5 exf5 13. exd5 Bd6 14. Qh5 O-O 15. Rad1 Re8 16. Rfe1 Re5 17. Qf3 {½-½ (17) Karabalis,H (2177)-Holmberg,P (1535) IECG email 2002}) 9... d5 10. e5 (10. Re1 $11) 10... c5 $17 11. Ndb5 axb5 $19 12. Nxb5 {[#]} Qc6 {[%cal Rc6b5]} 13. Nd6+ Kd7 14. Nxf7 Rg8 15. c4 g6 16. cxd5 Nxd5 17. Bd2 Bb7 18. Qg4 Be7 19. Nh6 (19. Nd6 $142) 19... Rgf8 20. a3 Qa4 21. Kh1 g5 22. fxg5 Qb5 23. Nf7 {If White can now play g6 this consolidates a bit.} Ba6 24. Bc3 (24. g6 hxg6 25. Rae1) 24... Qxf1+ 25. Rxf1 Bxf1 26. Qf3 Bb5 27. h4 Ra4 28. Qh5 Bd3 29. g3 Ne3 30. Kg1 Ng4 31. b4 Rxa3 {Black mates.} 32. Bb2 Rb3 33. Bc1 {[#]} Rb1 $1 34. Qxg4 Rxc1+ 35. Kg2 Rxf7 36. bxc5 Rc2+ {White did not feel at home in the position after the opening.  Weighted Error Value: White=0.79/Black=0.20} 0-1

[Event "Charlotte Holiday IM 2020"]
[Site "Charlotte"]
[Date "2020.12.29"]
[Round "5.5"]
[White "Martin Del Campo C., Roberto"]
[Black "Vijay, Keerthi K."]
[Result "1/2-1/2"]
[WhiteElo "2313"]
[BlackElo "2242"]
[Annotator "TA"]
[PlyCount "29"]
[EventDate "2020.12.26"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,16,43,48,58,44,72]} 1. e4 c5 2. Nf3 a6 3. c3 d5 4. exd5 Qxd5 5. d4 e6 6. Bd3 Nf6 7. O-O Nc6 {B28: Sicilian: 2 Nf3 a6 (O'Kelly Variation).} 8. Re1 Be7 {[#] Not enough moves} {Predecessor:} 9. dxc5 $146 Bxc5 10. h3 h6 11. Qe2 O-O 12. Nbd2 Rd8 13. Bc2 Be7 14. Nf1 Qb5 15. c4 {½-½ (56) Piorun,K (2611)-Novikov,S (2531) Moscow 2019} 1/2-1/2

[Event "Charlotte Holiday IM 2020"]
[Site "Charlotte"]
[Date "2020.12.29"]
[Round "6.1"]
[White "Andrianov, Nikolai"]
[Black "Velikanov, Alexander"]
[Result "1/2-1/2"]
[WhiteElo "2392"]
[BlackElo "2308"]
[Annotator "NA RC"]
[PlyCount "10"]
[EventDate "2020.12.26"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

1. Nf3 {[%emt 1:30:30]} Nf6 {[%emt 1:30:30]} 2. g3 {[%emt 0:00:30]} g6 {[%emt 0:00:30]} 3. b3 {[%emt 0:00:30]} b6 {[%emt 0:00:30]} 4. Bg2 {[%emt 0:00:30]} Bb7 {[%emt 0:00:30]} 5. Bb2 {[%emt 0:00:30]} Bg7 {[%emt 0:00:30]} 1/2-1/2

[Event "Charlotte Holiday IM 2020"]
[Site "Charlotte"]
[Date "2020.12.29"]
[Round "6.2"]
[White "Chasin, Nico"]
[Black "Martin Del Campo C., Roberto"]
[Result "0-1"]
[ECO "E91"]
[WhiteElo "2303"]
[BlackElo "2313"]
[Annotator "TA"]
[PlyCount "112"]
[EventDate "2020.12.26"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,112,52,70,61,0,8,7,8,6,47,48,63,54,54,46,48,45,80,32,70,40,42,21,0,-164,-179,-201,-167,-172,0,-8,0,0,0,-156,-146,-144,-107,-202,-197,-237,-235,-227,-213,-324,-257,-243,-136,-127,-118,-119,-95,-276,-265,-408,-344,-365,-342,-522,-508,-1747,-1798,-1719,-1704,-1709,-1731,-5548,-5704,-5602,-5587,-5293,-2743,-1777,-1715,-6079,-6079,-6287,-5114,-29981,-29982,-29985,-29986,-29986,-29987,-29988,-29989,-29989,-29990,-29990,-29991,-29992,-29993,-29995,-29996,-29996,-29995,-29995,-29994]} 1. d4 Nf6 2. c4 d6 3. Nf3 g6 4. Nc3 Bg7 5. e4 O-O 6. Be2 Bg4 7. Be3 Nfd7 8. Qd2 e5 {The main line 8...e5 scores better than 8...c5.} 9. d5 f5 {E91: King's Indian: Classical: 6 Be2, unusual replies including 6...c5 and 6...Bg4.} 10. Bh6 (10. exf5 $14 gxf5 11. Bg5) 10... f4 11. Bxg7 Kxg7 {[#] The position is equal.} 12. O-O-O $146 ({Predecessor:} 12. h3 Bh5 13. O-O-O Nb6 14. g4 fxg3 15. Ng5 Bxe2 16. Ne6+ Kg8 17. Nxd8 Bxd1 18. Ne6 {1-0 (18) Kluger,G-Sapi,L Budapest 1967}) 12... Bxf3 13. Bxf3 Nf6 14. h4 h6 15. Rdg1 Nbd7 16. g3 Kh7 17. Rh3 (17. gxf4 $6 exf4 18. Nb5 (18. Qxf4 Nxd5 {[%mdl 64] Pin} 19. Qg3 Ne5 $15 {[%mdl 64] Double Attack}) 18... Ne5 $14) 17... Qc8 18. gxf4 exf4 19. Ne2 Ne5 20. Bg2 {[#]} (20. Nxf4 $11 Ng8 21. Bg4 Nxg4 22. Ne6 Rxf2 23. Qd4) 20... Nxe4 $1 $19 {[%mdl 512]} 21. Qd4 {[#]} (21. Bxe4 Qxh3) 21... Nxf2 {[%mdl 512]} 22. Rf3 {[#]} (22. Qxf2 $2 Qxh3 $3 {[%mdl 512]} 23. Bxh3 Nd3+ 24. Kd2 Nxf2 $19) 22... Qf5 $2 23. Qxf2 $11 Nd3+ 24. Rxd3 $1 Qxd3 25. Qf3 $2 (25. Rd1 $11 Qxc4+ 26. Kb1) 25... Qxc4+ $17 {[%mdl 64] Double Attack} 26. Nc3 Qd4 27. Re1 (27. Rd1 $17 {keeps fighting.} Qf6 28. h5) 27... Rae8 $19 28. Re6 Rxe6 29. dxe6 {[#]} c6 $1 30. Qe4 (30. h5 $142) 30... Qf6 31. h5 d5 ({Better is} 31... Kg7 $19 32. hxg6 d5) 32. Qb4 $17 ({Not} 32. hxg6+ $2 Kg7) 32... f3 ({Don't play} 32... gxh5 $6 33. Qxb7+ Kh8 34. Qxc6 $11) 33. Qxb7+ Kh8 34. Bh3 {[#] This move loses the game for White.} (34. hxg6 $17 Qg5+ 35. Kd1 Qxg6 36. Bf1) 34... f2 $1 $19 {[%cal Rf2f1]} ({Stronger than} 34... gxh5 35. Qxc6 f2 36. Bf1 $11) 35. Kc2 (35. Bf1 $142 Qxe6 36. hxg6 Qxg6 37. Qxa7) 35... f1=Q 36. Bxf1 Qxf1 37. Qxc6 {[%mdl 4096] Endgame KQR-KQN} (37. e7 $142 Re8 38. Qxc6 Qf5+ 39. Kb3 Rxe7 40. Nxd5) 37... Qf2+ 38. Kb3 (38. Kc1 $142 d4 39. Nd1 Qf4+ 40. Kb1 Qf5+ 41. Kc1) 38... Rb8+ 39. Nb5 Qb6 40. Qxb6 Rxb6 {KR-KN} 41. a4 a6 {[%mdl 64] Pin} 42. e7 Rb8 {[%mdl 64] Pin} 43. e8=Q+ Rxe8 44. Nc7 Rb8+ 45. Ka3 d4 46. Nxa6 Rd8 47. Nc5 d3 {Black mates.} 48. Ne4 d2 49. Nxd2 Rxd2 50. a5 gxh5 {KR-KPP} 51. b4 h4 52. a6 h3 53. b5 h2 54. b6 h1=Q 55. b7 Qa1+ 56. Kb4 Rb2+ {Weighted Error Value: White=0.82/Black=0.16} 0-1

[Event "Charlotte Holiday IM 2020"]
[Site "Charlotte"]
[Date "2020.12.29"]
[Round "6.3"]
[White "Vivekananthan, Anish"]
[Black "Vijay, Keerthi K."]
[Result "0-1"]
[ECO "C60"]
[WhiteElo "2305"]
[BlackElo "2242"]
[Annotator "TA"]
[PlyCount "76"]
[EventDate "2020.12.26"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,76,14,24,16,18,1,14,2,11,11,7,0,0,-45,-38,-44,-42,-30,-7,-31,-14,-18,-12,-22,-24,-22,-17,-96,-44,-90,-98,-111,-98,-136,-118,-175,-164,-190,-174,-197,-214,-314,-310,-1283,-1262,-1208,-1227,-1203,-981,-1156,-984,-949,-941,-1002,-1007,-971,-969,-1161,-1155,-1141,-1134,-1252,-1247,-1376,-1374,-1362,-1329,-1640,-1613]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nge7 4. O-O g6 5. d4 exd4 6. Bxc6 {C60: Ruy Lopez: Unusual Black 3rd moves and 3...g6.} Nxc6 7. Bg5 f6 {[#]} 8. Bf4 $146 {The position is equal.} ({Predecessor:} 8. Bh4 Bg7 9. Nxd4 O-O 10. Nc3 d6 11. f4 g5 12. Bf2 gxf4 13. Nd5 f5 14. Nxf4 {½-½ (26) Meijers,V (2496)-Sundararajan,K (2446) La Fere 2008}) 8... Bc5 9. c3 dxc3 10. Nxc3 d6 11. a3 Be6 12. b4 Bb6 13. Nd5 Ne5 14. Nd4 Bxd4 15. Qxd4 O-O 16. Bd2 c6 17. Ne3 c5 18. Qb2 (18. Qc3 $11) 18... c4 (18... Nd3 $17 19. Qc3 c4) 19. Rad1 Nd3 $36 {[%mdl 2048] Black is in control. Black continues to play with concentration.} 20. Qc3 b5 21. Nc2 d5 22. Nd4 {[#]} (22. exd5 $17 {was called for.} Qxd5 23. Bh6) 22... Qd7 $1 $19 23. Bh6 Rf7 24. exd5 Bxd5 25. Be3 (25. f3 {keeps fighting.}) 25... Re8 26. Nc2 $2 {[#]} (26. Ne2) 26... Bxg2 $1 {[%mdl 512] ( -> ...Bf3). Black is clearly winning.} 27. Kxg2 (27. f3 Bxf3) 27... Qg4+ 28. Kh1 Qf3+ 29. Kg1 Nf4 30. Bxf4 Qxc3 31. Nd4 Qh3 {...Rd7 is the strong threat.} 32. Bg3 Qh5 33. Rc1 Rd7 34. Nc2 Qf3 35. a4 bxa4 {[%cal Bb5a4,Ba4a3,Ba3a2][%mdl 32]} 36. Ne3 a3 37. Nxc4 a2 38. Nd6 Red8 {Weighted Error Value: White=0.63/Black=0.09} 0-1

[Event "Charlotte Holiday IM 2020"]
[Site "Charlotte"]
[Date "2020.12.29"]
[Round "6.4"]
[White "Liang, Jason"]
[Black "Diulger, Alexey"]
[Result "1-0"]
[ECO "B15"]
[WhiteElo "2317"]
[BlackElo "2298"]
[Annotator "TA"]
[PlyCount "57"]
[EventDate "2020.12.26"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,57,80,85,81,83,56,92,73,116,116,116,118,122,108,112,100,72,81,84,67,115,109,165,159,144,182,178,181,172,101,306,277,270,277,616,608,619,618,618,608,600,583,658,632,1455,1333,2189,1928,2560,2160]} 1. e4 c6 2. d4 g6 3. Nc3 d5 4. Nf3 Nf6 5. e5 Nh5 6. h3 {B15: Caro-Kann: 3 Nc3: 3...g6 and 3...dxe4 4 Nxe4 Nf6 5 Nxf6+ exf6.} Ng7 7. Be2 h5 8. O-O {[#] White is better.} Qb6 $146 ({Predecessor:} 8... Bf5 9. Be3 Nd7 10. a4 a5 11. Re1 Qb6 12. b3 e6 13. Nb1 Be7 14. Nbd2 h4 {½-½ (65) Skripchenko,A (2430)-Rapport,R (2654) Calvi 2013}) 9. Na4 Qc7 10. b3 b5 11. Nc5 e6 12. c4 Bxc5 13. dxc5 bxc4 14. bxc4 Ba6 15. Qa4 Nf5 (15... O-O $16) 16. Rb1 Bxc4 17. Bxc4 dxc4 18. Qxc4 Nd7 19. Rd1 (19. Ng5 $18) 19... Rb8 $2 {[#] Loses the game.} (19... Ne7 $16 {was called for.}) 20. Rxb8+ $18 Qxb8 21. Bg5 Ne7 $2 (21... Qb7 22. Nd2 O-O) 22. Bxe7 {White is clearly winning.} ({Worse is} 22. Qd4 Nd5 $11) 22... Kxe7 23. Qh4+ Ke8 24. Qd4 Qc7 25. Ng5 Nb8 26. Qf4 h4 27. Ne4 Qe7 28. Rb1 Na6 {[#]} 29. Rb7 $1 {[%mdl 512] Weighted Error Value: White=0.08/Black=0.42} 1-0

[Event "Charlotte Holiday IM 2020"]
[Site "Charlotte"]
[Date "2020.12.29"]
[Round "6.5"]
[White "Tsay, Vincent"]
[Black "Li, Eric"]
[Result "1/2-1/2"]
[ECO "E16"]
[WhiteElo "2266"]
[BlackElo "2311"]
[Annotator "TA"]
[PlyCount "90"]
[EventDate "2020.12.26"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,90,15,11,5,0,0,-22,-15,-12,-12,-13,-10,-16,-15,-31,0,-11,0,-83,0,0,0,-83,-26,-87,-59,-88,-67,-128,-126,-112,-77,-117,-93,-182,-109,-103,-105,-104,-70,-76,-77,-60,-22,-31,-24,-69,-32,-27,-35,-45,0,0,0,0,0,0,17,20,16,20,20,18,39,0,0,0,0,0,0,0,1,0,0,0,0,0,0]} 1. d4 Nf6 2. Nf3 d5 3. c4 e6 4. g3 Bb4+ 5. Nbd2 O-O 6. Bg2 b6 7. O-O Bb7 8. a3 Be7 {E16: Queen's Indian: 4 g3 Bb7 5 Bg2 Bb4+.} 9. Qc2 Nbd7 10. Ne5 c5 11. cxd5 exd5 12. Nxd7 Qxd7 13. dxc5 bxc5 {[#]} 14. Rd1 $146 ({Predecessor:} 14. b3 Rab8 15. Bb2 d4 16. Nf3 Be4 17. Qd1 Qb7 18. b4 cxb4 19. axb4 Qxb4 20. Bxd4 {½-½ (41) Vasiliev,G (2126)-Blohberger,F (2330) Tallinn 2019}) 14... Rfd8 15. Nb3 Rac8 16. Bd2 (16. Bg5 $1 $11) 16... Qa4 (16... Ba6 $17 17. Bg5 Qe6) 17. Rac1 $11 Ba6 18. Bf1 (18. Bh3 $11) 18... h6 ({Black should try} 18... Qg4 $17) 19. Be1 (19. Bh3 $11 {keeps the balance.}) 19... Qd7 20. Bg2 Qe6 21. Ba5 (21. e3 $15) 21... Re8 $17 22. Re1 d4 23. Bf3 Nd7 24. Be4 (24. Nd2 $17 {is a better defense.}) 24... g6 (24... Bg5 $19 25. Bf5 Qd5) 25. Nd2 Bg5 {[#] And now ...Bxd2 would win.} 26. f4 Be7 27. b3 Nf6 {aiming for ...c4.} 28. Bf3 h5 29. Nc4 Ng4 30. Bd2 Bf8 (30... Bf6 {keeps more tension.} 31. h3 Ne3 32. Bxe3 Bxc4 33. Qxc4 Qxe3+ 34. Kh1 h4) 31. e4 dxe3 32. Nxe3 Nxe3 33. Bxe3 Qb6 34. Bf2 Rxe1+ 35. Rxe1 Bb7 36. Bxb7 Qxb7 37. f5 Qc6 38. fxg6 Qxg6 39. Qxg6+ (39. Qc4 {feels hotter.} Rd8 40. Bxc5 Bxc5+ 41. Qxc5 h4 42. Qc3) 39... fxg6 $11 {[%mdl 4096] Endgame KRB-KRB. The position is equal.} 40. Re6 Kf7 41. Ra6 Rc7 42. h4 Be7 43. Kg2 Rb7 44. b4 cxb4 45. axb4 Bxb4 {Weighted Error Value: White=0.20/Black=0.16} 1/2-1/2

[Event "Charlotte Holiday IM 2020"]
[Site "Charlotte"]
[Date "2020.12.29"]
[Round "7.1"]
[White "Martin Del Campo C., Roberto"]
[Black "Andrianov, Nikolay"]
[Result "1/2-1/2"]
[WhiteElo "2313"]
[BlackElo "1816"]
[Annotator "NA RC"]
[PlyCount "12"]
[EventDate "2020.12.26"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

1. e4 {[%emt 1:30:30]} e5 {[%emt 1:30:30]} 2. Nf3 {[%emt 0:00:30]} Nf6 {[%emt 0:00:30]} 3. Nxe5 {[%emt 0:00:30]} d6 {[%emt 0:00:30]} 4. Nf3 {[%emt 0:00:30]} Nxe4 {[%emt 0:00:30]} 5. Qe2 {[%emt 0:00:30]} Qe7 {[%emt 0:00:30]} 6. d3 {[%emt 0:00:30]} Nf6 {[%emt 0:00:30]} 1/2-1/2

[Event "Charlotte Holiday IM 2020"]
[Site "Charlotte"]
[Date "2020.12.29"]
[Round "7.1"]
[White "Martin Del Campo C., Roberto"]
[Black "Andrianov, Nikolai"]
[Result "1/2-1/2"]
[WhiteElo "2313"]
[BlackElo "2392"]
[Annotator "NA RC"]
[PlyCount "12"]
[EventDate "2020.12.26"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

1. e4 {[%emt 1:30:30]} e5 {[%emt 1:30:30]} 2. Nf3 {[%emt 0:00:30]} Nf6 {[%emt 0:00:30]} 3. Nxe5 {[%emt 0:00:30]} d6 {[%emt 0:00:30]} 4. Nf3 {[%emt 0:00:30]} Nxe4 {[%emt 0:00:30]} 5. Qe2 {[%emt 0:00:30]} Qe7 {[%emt 0:00:30]} 6. d3 {[%emt 0:00:30]} Nf6 {[%emt 0:00:30]} 1/2-1/2

[Event "Charlotte Holiday IM 2020"]
[Site "Charlotte"]
[Date "2020.12.30"]
[Round "7.2"]
[White "Diulger, Alexey"]
[Black "Tsay, Vincent"]
[Result "0-1"]
[ECO "D35"]
[WhiteElo "2298"]
[BlackElo "2266"]
[Annotator "TA"]
[PlyCount "100"]
[EventDate "2020.12.26"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,100,0,0,0,0,-17,-12,0,14,7,1,7,37,36,33,12,12,-17,-16,-18,-17,-31,-30,-39,-37,-45,-40,-34,-23,-35,-15,-30,-16,-24,-15,-12,-10,-37,-15,-18,0,-37,-37,-37,-37,-37,-37,-37,-37,-37,-37,-37,-37,-37,-37,-37,-37,-40,-40,-39,-16,-15,-15,-14,-15,-15,-15,-15,-22,-20,0,0,-13,-14,-14,-14,-17,-14,-17,-23,0,0,0,0,0,-7,-6,-8,-4,-25,-25]} 1. c4 e6 2. Nc3 d5 3. cxd5 exd5 4. d4 c6 5. Bf4 Bd6 6. Bg3 Nf6 7. e3 {D35: Queen's Gambit Declined: Exchange Variation.} Bf5 8. Bd3 Bxd3 9. Qxd3 {The position is equal.} O-O 10. Nge2 Re8 11. O-O {[#]} Nh5 $146 ({Predecessor:} 11... a5 12. a3 Qe7 13. Bxd6 Qxd6 14. Ng3 Nbd7 15. b3 {½-½ (15) Kantsler,B (2475)-Polgar,S (2495) Tel Aviv 1996}) 12. Bxd6 Qxd6 13. Rab1 a5 (13... Nd7 {looks sharper.} 14. f3 Rad8 15. Rbd1 Nb6 16. b3 g6) 14. Ng3 Nxg3 15. hxg3 Nd7 16. Ne2 Nf6 17. Qa3 Qd7 18. f3 h5 19. Rbe1 Qf5 20. Nf4 g6 21. Qd3 Qg5 22. Kf2 Nh7 23. Rh1 Re7 24. a4 Qf6 25. Rh4 Ng5 26. Reh1 Rae8 27. Re1 Ne6 28. Nxe6 $1 Rxe6 29. Re2 Qe7 30. Rh1 Qb4 31. b3 Qa3 32. Qc3 b6 33. Rhe1 Qd6 34. e4 dxe4 35. Rxe4 h4 36. gxh4 Rxe4 37. Rxe4 Rxe4 38. fxe4 $11 {[%mdl 4096] Endgame KQ-KQ} Qf4+ {[%mdl 64] [#] Double Attack} 39. Kg1 Qxe4 40. g3 Kf8 (40... b5 {with more complications.} 41. Kf2 Qd5 42. Ke1 Kg7 43. Kd2 Kh7) 41. Kf2 Qd5 42. g4 Qd6 43. Kg2 $1 Qf6 44. g5 $1 {[%cal Rg5f6]} Qe6 45. Kg3 Ke8 46. Qf3 Qe1+ 47. Kh3 Qe6+ 48. Kg2 Kd7 49. Kf2 Kd6 50. Qg3+ Kd5 {[%mdl 32768] Weighted Error Value: White=0.06/Black=0.05. Sensor Board Error (Ke4/e5)?} 0-1

[Event "Charlotte Holiday IM 2020"]
[Site "Charlotte"]
[Date "2020.12.30"]
[Round "7.3"]
[White "Velikanov, Alexander"]
[Black "Liang, Jason"]
[Result "1-0"]
[ECO "A08"]
[WhiteElo "2308"]
[BlackElo "2317"]
[Annotator "TA"]
[PlyCount "131"]
[EventDate "2020.12.26"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,131,24,23,32,48,0,34,-19,73,68,78,77,111,106,101,54,93,83,93,93,105,75,91,88,101,12,28,22,47,22,35,31,34,16,6,15,11,9,57,38,52,30,43,47,72,36,42,12,106,103,106,109,154,54,181,179,177,195,183,164,209,185,206,114,180,76,61,60,130,127,264,263,255,269,315,325,310,300,209,236,193,210,29979,29980,29972,566,1085,1094,706,670,576,560,1333,1140,1522,1498,29972,29974,29973,29974,29970,29972,29979,29980,29981,29982,29982,29983,29983,29984,29984,29985,29985,29985,29985,29983,29987,29982,29988,29983,29987,29988,29988,29987]} 1. Nf3 c5 2. g3 Nf6 3. Bg2 d5 4. O-O g6 5. c4 d4 6. b4 {A08: King's Indian Attack.} Bg7 7. d3 O-O 8. Nbd2 (8. bxc5 $14 Nc6 9. Nbd2) 8... Nc6 (8... cxb4 $11 {remains equal.} 9. a3 bxa3) 9. bxc5 $16 Nd7 10. Nb3 $1 {[#]} h6 $146 ({Predecessor:} 10... e5 11. Rb1 Nb4 12. Ba3 Nxa2 13. c6 bxc6 14. Bxf8 Nxf8 15. Qc2 Nc3 16. Ra1 Qb6 {0-1 (34) Jovanovic,V (2153)-Kostic,M (2158) Dimitrovgrad 2003}) 11. Bb2 e5 12. Nfd2 f5 13. f4 Qe7 14. Kh1 Re8 15. Bd5+ Kh7 16. Nf3 a5 {next ...a4 is good for Black.} 17. Bxc6 (17. a4 $1 $16) 17... bxc6 $11 18. fxe5 a4 19. Nbxd4 {With the idea e6.} Nxe5 20. Rb1 Qxc5 21. Nxe5 Bxe5 22. Nf3 Bxb2 23. Rxb2 Qe7 24. Rf2 c5 25. Qb1 $36 {[%mdl 2048] White has the initiative.} Ra7 26. Kg1 Rb7 27. Rb6 Qc7 28. Qb5 {Strongly threatening Rxb7.} Re6 (28... Qxb6 $11 29. Qxe8 Qe6 30. Qxe6 (30. Qxa4 Rb1+ 31. Kg2 f4 $11) 30... Bxe6) 29. Rxb7 $16 Bxb7 30. Qxa4 Qe7 31. Qb5 (31. Qc2 $16) 31... Qc7 (31... Bxf3 $14 32. exf3 Re1+ 33. Kg2 Re2) 32. a4 $18 Ba6 33. Qb2 Bb7 34. Rf1 Bc6 35. Kf2 f4 36. Rb1 (36. gxf4 $1 $18 Qxf4 37. e4) 36... g5 {[#]} (36... fxg3+ $16 37. hxg3 Qf7) 37. d4 (37. g4 $1 $18) 37... cxd4 $16 38. Qxd4 fxg3+ {White now steadily converts the win.} (38... Qe7 $14 39. Kf1 g4) 39. hxg3 Qf7 (39... Qe7 $16 {was called for.} 40. Rb2 Rd6) 40. Rb8 $18 {Qh8+ is the strong threat.} Rf6 {Black wants to play ...g4.} 41. Ke1 {aiming for Ne5.} Bxf3 42. exf3 Rxf3 {[%mdl 4096] Endgame intending ...Qe7+. KQR-KQR} 43. Qe4+ Kg7 {And now ...Rf1+ would win.} 44. Ke2 Rf2+ {[#]} 45. Ke3 $1 {Hoping for Rb7.} Qf6 $2 (45... Qa7+ $18 46. Qd4+ Qxd4+ 47. Kxd4 h5) 46. Rb7+ Kf8 47. c5 (47. Qd5 $142 h5 48. Qc5+ Kg8 49. Qc8+ Qf8 50. Qe6+ Kh8 51. Qe5+ {[%mdl 64] Double Attack} Rf6 52. Rb6) 47... Rf1 48. Rb8+ Kg7 49. Qb7+ Kg6 {( -> ...Qc3+)} 50. Qb6 {Black must now prevent Qxf6+.} Re1+ 51. Kd2 Re4 52. a5 Rd4+ 53. Ke3 {White mates.} Ra4 54. Qxf6+ Kxf6 {KR-KR} 55. c6 Rc4 56. a6 Rc3+ 57. Kd4 Rxc6 58. a7 Ra6 59. a8=Q Rxa8 60. Rxa8 {KR-KPP} Kf5 61. Ke3 Kg4 62. Kf2 h5 63. Kg2 h4 64. Ra4+ Kh5 65. gxh4 gxh4 66. Kh3 {Weighted Error Value: White=0.25/Black=0.44} 1-0

[Event "Charlotte Holiday IM 2020"]
[Site "Charlotte"]
[Date "2020.12.30"]
[Round "7.4"]
[White "Li, Eric"]
[Black "Vivekananthan, Anish"]
[Result "0-1"]
[ECO "A42"]
[WhiteElo "2311"]
[BlackElo "2305"]
[Annotator "TA"]
[PlyCount "80"]
[EventDate "2020.12.26"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,80,43,38,20,36,38,39,24,30,20,5,-79,20,17,25,0,0,0,0,0,6,0,0,0,0,0,0,0,14,0,0,0,0,0,0,0,0,-12,-13,-25,-11,-29,-18,-21,-20,-42,-53,-462,-461,-624,-612,-617,-602,-598,-442,-431,-424,-408,-366,-372,-358,-364,-362,-29988,-29989,-29989,-29990,-29992,-29993,-29993,-29994,-29994,-29995]} 1. d4 g6 2. c4 Bg7 3. Nc3 d6 4. e4 e5 5. d5 a5 6. h4 {A42: Modern Defence: Averbakh Variation.} h5 7. g3 Nd7 8. Bh3 {White is slightly better.} Bh6 9. Nge2 Nc5 {[#]} 10. Kf1 $146 (10. Bxc8 $11 Qxc8 11. f3) ({Predecessor:} 10. Bxc8 Qxc8 11. Bxh6 Nxh6 12. Qd2 Kf8 13. O-O-O Kg7 14. f3 Qd7 15. Rdg1 Raf8 16. g4 hxg4 {½-½ (46) Haba,P (2445)-Hertneck,G (2570) Werfen 1995}) 10... Kf8 ({Black should try} 10... Bxh3+ $17 11. Rxh3 Qd7) 11. Kg2 Kg7 12. b3 Bxc1 13. Nxc1 Nh6 14. Bxc8 Qxc8 15. Nd3 b6 16. Qd2 Rf8 17. Rhf1 Qd7 18. Rae1 Kh7 19. Nd1 f5 20. Nxc5 bxc5 21. f4 exf4 22. Rxf4 a4 23. b4 cxb4 24. Qxb4 Rab8 25. Qd2 Rfe8 26. Nf2 Qg7 27. Re2 a3 {[#] Hoping for ...Rb2.} 28. Rf3 $2 {[%mdl 8192] This costs White the game.} (28. Nd3 $1 $15) 28... Rb2 $19 29. Qd1 fxe4 30. Rxa3 Nf5 31. Nh3 e3 32. Ng5+ Kg8 33. Nf3 Reb8 {...Rxe2+ is the strong threat.} 34. Rb3 R8xb3 35. axb3 Qc3 36. Nh2 $2 {[#]} (36. Kh2 $19) 36... Rxe2+ {Black mates.} 37. Qxe2 Qd2 38. Kf3 Nd4+ {[%mdl 64] Double Attack} 39. Ke4 Nxe2 40. Nf3 Nxg3+ {Weighted Error Value: White=0.59/Black=0.11} 0-1

[Event "Charlotte Holiday IM 2020"]
[Site "Charlotte"]
[Date "2020.12.30"]
[Round "7.5"]
[White "Vijay, Keerthi K."]
[Black "Chasin, Nico"]
[Result "1/2-1/2"]
[ECO "A46"]
[WhiteElo "2242"]
[BlackElo "2303"]
[Annotator "TA"]
[PlyCount "100"]
[EventDate "2020.12.26"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,100,-24,-8,-14,0,0,0,0,0,-20,-12,-14,0,-28,-13,-28,-24,-13,25,14,22,16,24,7,44,44,44,42,53,24,26,13,16,17,27,24,36,-22,-12,-12,75,85,120,110,197,200,199,198,196,191,195,195,191,181,317,239,244,89,112,89,118,52,89,95,83,18,60,0,0,0,0,0,0,0,0,-8,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. Nc3 e6 3. Nf3 a6 4. g3 b5 {[#]} 5. Bg2 $146 ({Predecessor:} 5. e4 b4 6. e5 bxc3 7. exf6 cxb2 8. fxg7 Bxg7 9. Bxb2 c5 10. Bg2 Nc6 11. O-O Rb8 {1-0 (51) Rajlich,I (2389)-Szczepkowska,K (2403) Poznan 2016}) 5... Bb7 6. O-O {A46: 1 d4 Nf6 2 Nf3 e6: Torre, London and Colle Systems.} c5 7. Bg5 cxd4 8. Nxd4 Bxg2 9. Kxg2 Be7 10. Qd3 Qc8 11. Qf3 Ra7 12. Rfd1 O-O 13. Ne4 Qb7 14. Bxf6 gxf6 15. g4 Kh8 16. Kf1 Rg8 17. a4 bxa4 18. Rxa4 Rg6 19. b3 d5 20. Ng3 $36 {[%mdl 2048] White is more active.} Nd7 {[%cal Bb8d7,Bd7c5,Bc5e4][%mdl 32]} 21. h3 $1 Bd6 22. Nh5 Nc5 23. Ra2 (23. Raa1 $1 $14) 23... Ne4 $11 24. c4 Be5 (24... Ra8 $11 {keeps the balance.}) 25. Rc2 $1 $16 Ra8 26. cxd5 $1 Qxd5 {[#]} (26... Ng5 $16 {might work better.} 27. Qg2 exd5) 27. Rd3 $1 $18 Bxd4 28. Nf4 $1 {[%csl LRd5,LRg6]} Qe5 29. Nxg6+ hxg6 30. Rc4 Rd8 {Hoping for ...f5.} 31. e3 Rb8 (31... Kg7 {is a better defense.}) 32. exd4 ({Not} 32. Rcxd4 Nc5 $18) 32... Qd5 {[#] Strongly threatening ...Nd2+!} 33. Kg1 $2 (33. Qf4 $1 $18 {[%cal Rf4b8]} e5 34. Qe3) 33... Kg7 $16 34. Rc7 Rd8 35. Re3 (35. Rc1 $16) 35... f5 36. gxf5 exf5 37. Re7 (37. Rd3 $16) 37... Rc8 38. Kg2 ({White should try} 38. Qf4 $1 $14) 38... Rc2 $1 $11 {[%cal Rc2f2] The position is equal.} 39. R7xe4 fxe4 40. Rxe4 {[%mdl 4096] Endgame KQR-KQR} Rb2 41. Rf4 Qxb3 42. Qe4 Qb5 43. d5 {White threatens Qe5+ and mate.} Rb1 {White must now prevent ...Qf1+.} 44. Qc4 (44. Qe5+ {seems wilder.} Kg8 45. Kg3 Qc5 46. Rh4 Rg1+ 47. Kf3) 44... Qxc4 45. Rxc4 {KR-KR} Kf8 46. Rc6 a5 47. Ra6 Rb5 48. d6 {And now Ra8+ would win.} Ke8 49. Ra7 Rd5 50. Kf3 Rxd6 {Blacks defense is rewarded with a draw.  Weighted Error Value: White=0.15/Black=0.15} 1/2-1/2

[Event "Charlotte Holiday IM 2020"]
[Site "Charlotte"]
[Date "2020.12.30"]
[Round "8.1"]
[White "Andrianov, Nikolai"]
[Black "Vijay, Keerthi K."]
[Result "1/2-1/2"]
[WhiteElo "2392"]
[BlackElo "2242"]
[Annotator "NA RC"]
[PlyCount "10"]
[EventDate "2020.12.26"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

1. d4 {[%emt 1:30:30]} g6 {[%emt 1:30:30]} 2. Nf3 {[%emt 0:00:30]} Bg7 {[%emt 0:00:30]} 3. g3 {[%emt 0:00:30]} d5 {[%emt 0:00:30]} 4. Bg2 {[%emt 0:00:30]} Nf6 {[%emt 0:00:30]} 5. O-O {[%emt 0:00:30]} O-O {[%emt 0:00:30]} 1/2-1/2

[Event "Charlotte Holiday IM 2020"]
[Site "Charlotte"]
[Date "2020.12.30"]
[Round "8.2"]
[White "Vivekananthan, Anish"]
[Black "Chasin, Nico"]
[Result "1-0"]
[ECO "E46"]
[WhiteElo "2305"]
[BlackElo "2303"]
[Annotator "TA"]
[PlyCount "107"]
[EventDate "2020.12.26"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,107,0,18,11,26,22,26,13,23,0,25,31,31,22,31,31,23,31,28,23,37,40,37,28,29,30,22,31,54,36,99,89,87,73,74,73,89,83,113,85,79,87,207,105,279,258,260,261,255,231,411,411,362,373,414,396,412,416,389,386,353,246,267,254,265,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,2196,1708,5702,5627,5551,5489,1541,4797,5601,1565,4909,3287,29982,29983,29982,29983,29983,29984,29989,29990]} 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Bd2 O-O 5. e3 d6 6. Bd3 {E46: Nimzo-Indian: Rubinstein: 4 e3 0-0 5 Ne2 without early Bd3.} c5 7. a3 Ba5 8. Nge2 {White has an edge.} Nc6 9. O-O h6 10. Qc2 {[#]} cxd4 $146 ({Predecessor:} 10... Bb6 11. dxc5 dxc5 12. f4 Re8 13. Rad1 Bd7 14. Ng3 Qe7 15. Nce4 Nxe4 16. Bxe4 f5 {½-½ (27) Reilly,T (2238)-Rasmussen,A (2526) Auckland 2015}) 11. Nxd4 Ne5 12. Be2 Bd7 13. b4 Bb6 14. Ne4 Nxe4 15. Qxe4 f5 16. Qc2 Qe7 17. Rac1 Rac8 18. Qb2 g5 19. Kh1 f4 (19... a6 $14) 20. exf4 $16 gxf4 21. f3 Ng6 22. Nb3 Nh4 23. c5 $1 {[%cal Rc5b6]} Bc7 24. cxd6 Bxd6 25. Nc5 Nf5 (25... Bxc5 $16 26. bxc5 (26. Rxc5 Rxc5 27. bxc5 Qg7 $16) 26... Qg7 27. Qxg7+ Kxg7) 26. Ne4 ({Don't blunder} 26. Nxb7 $2 Ng3+ 27. Kg1 (27. hxg3 $2 fxg3 28. Qd4 {[%mdl 64] Double Attack} Rf4 $19) 27... Nxe2+ $19) (26. Rfe1 $1 $18) 26... Bc7 $2 {[#]} (26... e5 $16 {keeps fighting.}) 27. Rxc7 $1 $18 {[%mdl 576] Remove Defender} Rxc7 28. Bxf4 Rcc8 29. g4 Nh4 (29... Nd4 {might work better.}) 30. Bxh6 Ng6 {[%cal Bh4g6,Bg6f4,Bf4h3][%mdl 32]} 31. Bxf8 Rxf8 32. g5 {Nf6+ is the strong threat.} e5 33. Nf6+ Kg7 34. Bd3 Nf4 35. Be4 Bh3 36. Rg1 Rd8 37. Qf2 $2 ({Better is} 37. Qc2 $18) 37... Bg2+ $1 $11 38. Rxg2 Rd1+ 39. Rg1 Nh3 $1 {[%csl LRf2,LRg1,LRg5][%mdl 64] Double Attack} 40. Qxa7 Rxg1+ 41. Qxg1 Nxg1 42. Kxg1 Qd8 {White must now prevent ...Qd1+.} 43. h4 Qd2 {aiming for ...Qe1+.} 44. Nh5+ ({Don't play} 44. Bxb7 Qe1+ 45. Kg2 Qxh4 $17) 44... Kf8 $2 {[%mdl 8192] [#]} (44... Kf7 $11) 45. g6 $1 $18 {[%cal Rg6g7]} Qe1+ 46. Kg2 Qe2+ 47. Kg3 Ke7 48. g7 Qf1 49. Kg4 (49. Bd5 $142 Qg1+ 50. Kh3 Qh1+ 51. Kg4 Qg1+ 52. Kf5 Qb1+ 53. Kg5 Qg1+ 54. Kh6 Qe3+ 55. f4 Qb6+ 56. Kh7) 49... Qg2+ 50. Kf5 Qh3+ 51. Kg6 {White mates.} Qe6+ 52. Kh7 Qf7 53. Bg6 Qxf3 54. g8=Q {Weighted Error Value: White=0.14/Black=0.35} 1-0

[Event "Charlotte Holiday IM 2020"]
[Site "Charlotte"]
[Date "2020.12.30"]
[Round "8.3"]
[White "Liang, Jason"]
[Black "Martin Del Campo C., Roberto"]
[Result "1-0"]
[ECO "B33"]
[WhiteElo "2317"]
[BlackElo "2313"]
[Annotator "TA"]
[PlyCount "169"]
[EventDate "2020.12.26"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,169,41,41,50,31,45,26,18,0,0,0,0,0,0,0,0,0,0,0,0,-45,62,66,72,78,104,102,127,31,24,-7,-12,-93,-54,-66,-56,-49,-63,-52,61,67,67,34,41,48,69,67,69,0,0,0,0,-16,0,0,0,-20,-10,-29,0,0,0,0,83,85,139,138,154,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,9880,1735,12834,12835,12831,7843,12838,12839,12838,12839,12844,12844,12845,12846,12846,12847,12847,12847,12848,12848,12850,12849,12850,12850,27998,27998,27998,27998,27995,27998,27999,27998,27999,27999,27996,27996,27997,27997,27998,27998,27999,27999,27997,27997,27998,27998,27999,27999,27994,27994,27998,27995,27996,27996,27997,27996,27997,27996,27997,27997]} 1. e4 c5 2. Nc3 e6 3. Nf3 Nc6 4. d4 cxd4 5. Nxd4 Qb6 6. Nb3 Nf6 7. Bd3 a6 8. O-O Qc7 9. f4 d6 {B33: Sicilian: Pelikan and Sveshnikov Variations.} 10. Qf3 Be7 11. Bd2 b5 {White has an edge.} 12. e5 dxe5 13. fxe5 {And now Rae1 would win.} Qa7+ 14. Be3 $1 {[%cal Re3a7]} Nxe5 15. Qg3 {[%mdl 64] Double Attack} Qb8 16. Bf4 $1 $36 {[%cal Rf4e5][%mdl 2048] White is pushing.} (16. Qxg7 $2 Rg8 $19) 16... Qa7+ 17. Be3 Qb8 18. Be4 {[#]} (18. Qxg7 $2 Rg8 $19) (18. Bf4 $5 {[%cal Rf4e5]} Qa7+ 19. Be3 $11) 18... Ng6 $146 (18... Nc4 $15 19. Bxa8 (19. Qxg7 Rg8 $17) 19... Qxg3 20. hxg3 Nxe3 21. Bc6+ Bd7 22. Bxd7+ Kxd7) ({Predecessor:} 18... Neg4 19. Bxa8 Qxg3 20. Bc6+ Kf8 21. hxg3 Nxe3 22. Rf2 Bd6 23. a4 b4 24. Ne4 Nxe4 25. Bxe4 f5 26. Bd3 Ng4 27. Re2 Kf7 {0-1 (30) Ostojic,P-Flesch,J Belgrade 1965}) 19. Bxa8 $14 Qxa8 20. Bc5 b4 21. Bxe7 Nxe7 {[%cal Bg6e7,Be7f5,Bf5e3][%mdl 32]} 22. Ne2 (22. Qxg7 $2 Rg8 $19) ({White should play} 22. Na4 $1 $16) 22... Nf5 23. Qe5 {Black must now prevent Rxf5.} O-O (23... Ng4 $2 24. Qc5 $18) 24. Nbd4 (24. h3 $11 {remains equal.}) 24... Ng4 {[%mdl 1024] Black has strong compensation.} 25. Qc5 {[%cal Rd4f5]} Nfe3 {[%csl Ge3,LRf1,LRg2][%cal Ra8g2][%mdl 64] Double Attack} 26. Rf3 $1 Bb7 27. Rg3 {White wants to play h3.} e5 {[#]} (27... Rc8 $15 28. Qh5 (28. Qg5 h6 $15) 28... e5 29. Rxg4 Nxg4 30. Qxg4 exd4 31. Nxd4 g6) 28. Nf5 $1 {[%cal Rf5e3]} Nxf5 29. Rxg4 f6 30. Qf2 ({Much weaker is} 30. Qxb4 h5 $15) 30... Be4 {next ...h5 is good for Black.} 31. Ng3 Nxg3 32. Qxg3 (32. Rxg3 $14 Qc6 33. a3) 32... Qb7 $11 33. Qb3+ Kh8 34. a3 Qa7+ (34... Qb6+ {looks sharper.} 35. Kh1 f5 36. Rf1 Rd8 37. Rxe4 fxe4 38. Qxb4 Qxb4 39. axb4 g6) 35. Kh1 f5 36. Rg5 (36. Rg3 {keeps more tension.} Qa8 37. Qxb4 f4 38. Rg4 Bf5 39. Rh4) 36... h6 37. Rg6 ({Don't go for} 37. Qxb4 $2 Rb8 $19) 37... f4 38. Qxb4 Qa8 39. Rxa6 Qxa6 (39... Bxg2+ $11 40. Kg1 Qc8 41. Kxg2 Qg4+ 42. Kh1 Qf3+ 43. Kg1 Qg4+ 44. Kf2 Qh4+ 45. Kg2 Qg4+ 46. Kh1 Qf3+ 47. Kg1 Qg4+ 48. Kf2 Qh4+ 49. Kg2 Qg4+) 40. Qxe4 {[%mdl 4096] Endgame KQR-KQR} ({Of course not} 40. Qxf8+ $6 Kh7 $11) 40... Rd8 (40... Qd6 $142) 41. h3 Qb5 42. Re1 $2 ({Better is} 42. b4 $16) 42... Qxb2 43. Qxe5 Qxe5 44. Rxe5 {KR-KR} Rd1+ 45. Kh2 Rd2 46. Rf5 g5 47. c4 Ra2 48. h4 Kg7 49. hxg5 hxg5 50. Rxg5+ Kf6 51. Rg8 (51. Ra5 {seems wilder.} f3 52. Kg1 Ra1+ 53. Kf2 fxg2 54. Kxg2) 51... Ke5 52. Re8+ Kd4 53. Rf8 Ke5 54. Re8+ Kd4 55. Rd8+ Ke5 $2 {[%mdl 8192] [#] Black is now going downhill.} (55... Kxc4 $11 56. Rf8 Rxa3) 56. Rd3 $1 $18 Rc2 57. a4 Ra2 58. c5 Rxa4 {[#]} 59. Rc3 $1 Ra7 60. c6 Kd6 61. Kh3 Kc7 62. Kg4 Ra2 63. Kf3 Ra4 64. Rc2 Rb4 65. Kg4 Ra4 66. Kf5 Rb4 67. Rf2 Kxc6 68. Rxf4 {White mates.} Rb2 69. g4 Kd7 70. Re4 Rb5+ 71. Kg6 Rb6+ 72. Kh5 Rb8 73. g5 Rh8+ 74. Kg6 Rg8+ 75. Kf6 Rf8+ 76. Kg7 Rf1 77. g6 Rg1 78. Kf7 Rf1+ 79. Kg8 Rf2 80. g7 Rf1 81. Kh7 Rh1+ 82. Kg6 Rg1+ 83. Kf6 Kd6 84. Rd4+ Kc7 85. Rd5 {Weighted Error Value: White=0.14/Black=0.16} 1-0

[Event "Charlotte Holiday IM 2020"]
[Site "Charlotte"]
[Date "2020.12.30"]
[Round "8.4"]
[White "Tsay, Vincent"]
[Black "Velikanov, Alexander"]
[Result "1/2-1/2"]
[ECO "D02"]
[WhiteElo "2266"]
[BlackElo "2308"]
[Annotator "TA"]
[PlyCount "159"]
[EventDate "2020.12.26"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,158,-4,8,-8,0,-22,-4,-63,-79,-66,-55,-96,-105,-91,-66,-107,-74,-77,-41,-116,-146,-141,-133,-140,-130,-193,-153,-174,-62,-97,-58,-63,-22,-7,0,0,0,0,0,0,47,0,0,0,0,0,0,-10,0,-558,-543,-543,-536,-523,-500,-536,-520,-826,-650,-982,-975,-949,-954,-891,170,0,0,0,0,0,0,0,19,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,108,110,642,249,249,249,249,249,242,209,209,202,194,190,175,175,168,168,168,161,161,154,212,124,119,0,0,0,497,504,497,168,252,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. Nf3 c5 3. c3 e6 4. Bf4 d5 5. e3 Bd6 6. Bg3 {D02: 1 d4 d5 2 Nf3 sidelines, including 2...Nf6 3 g3 and 2...Nf6 3 Bf4.} Qc7 7. Ne5 Ne4 8. f4 (8. Bb5+ $11 Nc6 9. Nxc6 bxc6 10. Bxd6 Nxd6 11. Be2) 8... cxd4 $15 9. exd4 O-O {[#]} 10. Be2 $146 ({Predecessor:} 10. Nd2 f6 11. Nd3 Bd7 12. Be2 Bc6 13. O-O Nd7 14. Bf3 Rae8 15. Re1 Nxg3 16. hxg3 {½-½ (80) Mueller,M (2147)-Lutz,A (2027) Baden 2020}) 10... f6 11. Nd3 Nc6 12. O-O Bd7 13. Bf3 Ne7 14. Re1 ({Better is} 14. Nd2 $15) 14... Nxg3 $17 15. hxg3 Nf5 16. Kf2 g5 {[%cal Rg5f4]} 17. Qd2 (17. Bg4 $17) 17... Rae8 18. a4 b5 (18... Kh8 $19 19. Na3 Bxa4) 19. axb5 $1 $15 Bxb5 (19... Re7 {feels hotter.} 20. Na3 Rg7 21. Rac1 gxf4 22. gxf4 Kh8) 20. Na3 Bxd3 21. Qxd3 Bxa3 22. Rxa3 gxf4 23. gxf4 Qxf4 24. Rxa7 Qb8 25. Ra2 Qg3+ 26. Kf1 Qh4 $36 {[%mdl 2048] Black fights for an advantage.} 27. Ra6 Ng3+ 28. Kg1 $1 f5 29. Rexe6 $2 {[%mdl 8192]} (29. Qe3 $11) 29... Qh1+ $19 30. Kf2 Ne4+ 31. Ke2 {[%cal Rf3e4]} Rxe6 ({Worse is} 31... Qc1 32. Bxe4 Rxe6 33. Rxe6 $11) 32. Rxe6 {[%cal Rf3e4]} Rb8 $1 {[%cal Rb8b2]} 33. b4 (33. Qc2 $142 Qg1 34. Bxe4 fxe4 35. Rf6) 33... Ra8 $1 {[%cal Ra8a2] ( -> ...Ra2+)} 34. Ra6 Re8 35. Bxe4 Rxe4+ {[%mdl 4096] Endgame KQR-KQR} 36. Kd2 Qe1+ $2 (36... Qxg2+ $19 37. Kd1 Qf2 38. Ra8+ Kf7 39. Ra7+ Kf6 40. Ra6+ Ke7 41. Ra7+ Kd8 42. Ra8+ Kc7 43. Ra7+ Kb8) 37. Kc2 $11 Re3 $1 {[%cal Re3d3]} 38. Ra8+ Kg7 39. Ra7+ Kf6 (39... Kg8 $5 40. Ra8+ $8 (40. Qxf5 $2 {is a self mate.} Qxc3+ {[%mdl 64] Double Attack} 41. Kb1 Re1+ 42. Ka2 Ra1#) 40... Kg7 41. Ra7+ Kg8 42. Ra8+ $11 (42. Qxf5 $2 Qxc3+ {[%mdl 64] Double Attack} 43. Kb1 Re1+ 44. Ka2 Ra1#)) 40. Ra6+ Kg5 (40... Ke7 {is interesting.} 41. Ra7+ Kd8 42. Ra8+ Kc7 43. Ra7+ Kb8) 41. Qd2 Qxd2+ 42. Kxd2 {KR-KR} Rg3 43. Rd6 (43. Ra7 {looks sharper.} Rxg2+ 44. Kd3 Rh2 45. Rg7+ Kf4 46. Rg1) 43... Rxg2+ 44. Kd3 h5 45. Rxd5 h4 46. Rd8 h3 $1 {Hoping for ...f4.} 47. Rh8 Kg4 48. d5 Ra2 (48... h2 $1 $11 49. d6 Rg3+ 50. Kc4 Rh3 51. Rxh3 Kxh3) 49. b5 $16 {d6 is the strong threat.} Rb2 $2 {[%mdl 8192]} (49... Kg3 $16) 50. c4 $2 (50. d6 Rxb5 51. c4) 50... h2 $18 {And now ...Rb3+ would win.} 51. Kc3 Re2 52. d6 Re3+ 53. Kb4 Rh3 54. Rxh3 Kxh3 {K3P-KPP} 55. d7 h1=Q {Strongly threatening ...Qd1.} 56. d8=Q {aiming for Qh8+. KQ-KQ} Qb1+ 57. Kc5 f4 58. Qh8+ Kg3 59. Qg7+ Kf2 {[#]} (59... Kh3 $16 {might work better.}) 60. b6 (60. Kb6 $1 $18) 60... Qf5+ $16 61. Kc6 (61. Kd4 $16 Qa5 62. Qg6) 61... Qe4+ $1 $11 62. Kd6 (62. Kb5 {with more complications.} Qb1+ 63. Ka5 Qa2+ 64. Kb4 Qb1+ 65. Ka5) 62... Qxc4 $2 {[%mdl 8192]} (62... Qd3+ $11 {and Black is okay.} 63. Kc5 Qf5+ 64. Kd4 Qa5) 63. Qb2+ $18 Qe2 64. Qd4+ $2 (64. Qxe2+ Kxe2 65. b7) 64... Qe3 {[#]} 65. Kd5 $2 (65. Qc5 $1 $18 {Black must now prevent b7.} Kg2 66. b7) 65... Qxd4+ $11 {The position is equal.} 66. Kxd4 {Intending b7 and mate. KP-KP} f3 67. b7 Kg2 68. b8=Q f2 69. Qg8+ (69. Qb1 {keeps more tension.} f1=Q 70. Qg6+ Kf2 71. Qc2+ Kg1 72. Qg6+) 69... Kh1 70. Qd5+ (70. Qc4 {with more complications.} Kg2 71. Kc5 f1=Q 72. Qg4+ Kh2 73. Qh4+) 70... Kg1 71. Qg5+ (71. Ke5 {seems wilder.} f1=Q 72. Qd4+ Kh1 73. Qe4+ Qg2 74. Qe1+) 71... Kh1 72. Qh4+ (72. Qb5 {is more complex.} Kg1 73. Qc4 f1=Q 74. Qg8+ Qg2 75. Qb3) 72... Kg1 73. Qg3+ Kh1 74. Qh3+ (74. Kd5 {looks sharper.} f1=Q 75. Qh4+ Kg1 76. Qd4+ Qf2 77. Qd1+) 74... Kg1 75. Qe3 {White threatens Kd3 and mate.} (75. Kc3 {feels hotter.} f1=Q 76. Qe3+ Kh1 77. Qe4+ Kg1 78. Kb3) 75... Kg2 76. Qe2 {Threatening mate with Ke3.} Kg1 77. Qg4+ Kh1 78. Qf3+ Kg1 79. Qg3+ Kh1 80. Qxf2 {What a fight!  Weighted Error Value: White=0.51/Black=0.30} 1/2-1/2

[Event "Charlotte Holiday IM 2020"]
[Site "Charlotte"]
[Date "2020.12.30"]
[Round "8.5"]
[White "Li, Eric"]
[Black "Diulger, Alexey"]
[Result "1/2-1/2"]
[ECO "E82"]
[WhiteElo "2311"]
[BlackElo "2298"]
[Annotator "TA"]
[PlyCount "87"]
[EventDate "2020.12.26"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,87,79,54,78,70,81,70,68,72,81,83,91,68,79,79,83,90,88,72,75,73,90,83,75,76,97,89,87,83,72,53,108,116,102,107,100,108,169,177,196,170,213,96,75,42,47,50,41,37,55,52,51,49,37,0,0,0,0,-30,-24,-23,-20,-188,-168,-196,0,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. c4 d6 3. Nc3 g6 4. e4 Bg7 5. f3 O-O 6. Be3 b6 7. Qd2 $1 {[%mdl 4] now scores much better than the old 7.Bd3.} c5 8. Nge2 cxd4 {E82: King's Indian: Sämisch: 6...b6.} 9. Nxd4 Bb7 10. Be2 Nc6 {White is slightly better.} 11. Nc2 Ne5 12. O-O {[#]} h5 $146 ({Predecessor:} 12... Qc8 13. b3 Rd8 14. Rac1 Bc6 15. Nd5 Qb7 16. Bg5 Bxd5 17. exd5 Re8 18. Rfe1 a6 {1-0 (57) Cucancic,S (2242)-Sajn,S (2098) Rijeka 2018}) 13. Qe1 Qc8 14. Na3 Bc6 15. Rc1 Qb7 16. Qf2 Rac8 17. Rfd1 Kh7 18. b4 Rfd8 19. h3 Be8 20. Bf1 Qa6 21. Qb2 Qb7 22. Qb3 Bh6 ({Better is} 22... h4 $14) 23. Bxh6 $16 Kxh6 24. Nd5 Nxd5 25. exd5 ({Don't play} 25. Rxd5 $6 f6 $11) 25... g5 (25... Kg7 $16 {was worth a try.}) 26. h4 $18 gxh4 27. Qe3+ Kg7 28. Qg5+ (28. Nc2 $18) 28... Ng6 $16 29. Rd4 {Strongly threatening Re1.} e5 30. dxe6 fxe6 31. Bd3 {[#] Black must now prevent Bxg6.} Qe7 32. Qxh5 {And now Nb5 would win.} a5 33. Bxg6 ({And not} 33. bxa5 Rc5 $19) (33. Rg4 {is interesting.} Qf6 34. Bxg6 Bxg6 35. bxa5 Rc5 36. Qxh4 Qxh4 37. Rxh4 bxa5 38. Re1) 33... Bxg6 34. Qxh4 (34. Rg4 {is more complex.} Qf6 35. bxa5 Rc5 36. Qxh4 Qxh4 37. Rxh4 bxa5 38. Nb5) 34... Qxh4 35. Rxh4 axb4 36. Nc2 (36. Nb5 {keeps more tension.} e5 37. Rd1 Rc6 38. Rd2 Bf7 39. Kf2) 36... Bxc2 37. Rxc2 $11 {[%mdl 4096] Endgame KRR-KRR} b5 38. Rb2 $2 (38. Kf2 $1 $11) 38... bxc4 $19 39. Rxb4 c3 ({Black should try} 39... d5 $19 {...c3 is the strong threat.} 40. Kf2 Rb8) 40. Rbg4+ $11 {The position is equal.} Kf6 41. Rh6+ Ke5 42. Rh5+ Kf6 {[#] Hoping for ...d5.} 43. Rh6+ Ke5 44. Rh5+ {White used his chance.  Weighted Error Value: White=0.20/Black=0.15} 1/2-1/2

[Event "Charlotte Holiday IM 2020"]
[Site "Charlotte"]
[Date "2020.12.30"]
[Round "9.1"]
[White "Chasin, Nico"]
[Black "Andrianov, Nikolai"]
[Result "1/2-1/2"]
[WhiteElo "2303"]
[BlackElo "2392"]
[Annotator "NA RC"]
[PlyCount "12"]
[EventDate "2020.12.26"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

1. d4 {[%emt 1:30:30]} d5 {[%emt 1:30:30]} 2. c4 {[%emt 0:00:30]} c6 {[%emt 0:00:30]} 3. Nf3 {[%emt 0:00:30]} Nf6 {[%emt 0:00:30]} 4. Nbd2 {[%emt 0:00:30]} g6 {[%emt 0:00:30]} 5. g3 {[%emt 0:00:30]} Bg7 {[%emt 0:00:30]} 6. Bg2 {[%emt 0:00:30]} O-O {[%emt 0:00:30]} 1/2-1/2

[Event "Charlotte Holiday IM 2020"]
[Site "Charlotte"]
[Date "2020.12.31"]
[Round "9.2"]
[White "Velikanov, Alexander"]
[Black "Li, Eric"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "2308"]
[BlackElo "2311"]
[Annotator "TA"]
[PlyCount "115"]
[EventDate "2020.12.26"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,115,20,19,26,21,24,22,37,23,39,37,51,24,30,33,54,20,12,17,64,45,47,43,62,43,48,54,47,29,43,38,36,16,32,21,28,22,43,27,39,31,49,56,91,67,95,71,361,371,397,387,391,381,564,559,564,521,562,554,562,550,543,552,564,564,5327,558,558,557,543,541,502,502,669,665,654,636,650,644,636,622,722,698,715,708,596,604,723,721,860,855,785,666,822,804,29983,29984,29984,29985]} 1. Nf3 d5 2. g3 Nf6 3. Bg2 c6 4. O-O Bg4 5. d4 Nbd7 6. Nbd2 e6 7. Re1 Be7 8. e4 dxe4 9. Nxe4 Nxe4 10. Rxe4 Bf5 {D02: 1 d4 d5 2 Nf3 sidelines, including 2...Nf6 3 g3 and 2...Nf6 3 Bf4.} 11. Re1 O-O 12. c3 Qb6 {The position is equal.} 13. Nd2 {[#]} Rfc8 $146 ({Predecessor:} 13... Bg6 14. Nc4 Qa6 15. Ne3 Rac8 16. a4 Rfe8 17. a5 b5 18. h4 Nf6 19. Bf3 h6 {1-0 (58) Rotstein,A (2542)-Polak,T (2535) Austria 2010}) 14. Nc4 Qd8 15. Qb3 Bd3 16. Ne3 Qb6 17. d5 (17. Qd1 $5 {[%cal Rd1d3]} Qa6 18. a4 $14) 17... Nc5 ({Don't play} 17... exd5 18. Nxd5 cxd5 19. Rxe7 $16) 18. Qd1 {Hoping for b4.} Bg6 ({But not} 18... cxd5 $6 19. b4 $16) 19. dxe6 Nxe6 20. Nc4 Qb5 21. Ne5 Rd8 22. Qg4 Bf6 {[#]} 23. Bf1 $1 Qa5 24. Nxg6 hxg6 25. Bc4 Qf5 26. Bxe6 fxe6 27. Qe2 Rd5 28. Kg2 Re5 29. Be3 Rf8 30. Rad1 Rf7 31. c4 b5 32. b3 {Black must now prevent g4.} Be7 $2 {[%mdl 8192] [#] This costs Black the game.} (32... g5 $16) 33. g4 $1 $18 {[%cal Rg4f5]} Qf6 34. f4 Re4 35. Qf3 Bb4 (35... Rxe3 $142 36. Qxe3 bxc4 37. Qxe6 cxb3 38. axb3 Bc5 39. Qxf6 Rxf6 40. Rd8+ Kf7 41. Rd7+ Kf8) 36. Qxe4 Bxe1 37. Rxe1 Qh4 38. Bf2 Qxg4+ 39. Bg3 bxc4 40. bxc4 Kh7 41. Qxe6 Rf5 42. Qe2 Rxf4 43. Qxg4 Rxg4 {[%mdl 4096] Endgame KRB-KR} 44. Rc1 Rd4 45. Rc2 g5 46. Kf3 Kg6 47. Ke3 c5 48. Bb8 Rd7 49. Ke4 Kf6 50. Be5+ Ke6 51. Rg2 Rd1 52. Bxg7 Re1+ 53. Kd3 Kf5 54. Bf8 Rd1+ 55. Kc2 Rd4 56. Kc3 Rg4 57. Rxg4 Kxg4 58. Bxc5 {Weighted Error Value: White=0.26/Black=0.34} 1-0

[Event "Charlotte Holiday IM 2020"]
[Site "Charlotte"]
[Date "2020.12.30"]
[Round "9.3"]
[White "Martin Del Campo C., Roberto"]
[Black "Tsay, Vincent"]
[Result "1/2-1/2"]
[WhiteElo "2313"]
[BlackElo "2266"]
[Annotator "TA"]
[PlyCount "52"]
[EventDate "2020.12.26"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,15,33,22]} 1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 Qxd5 5. Ngf3 cxd4 6. Bc4 Qd6 7. O-O Nf6 8. Nb3 {[#]} {Predecessor:} Nc6 $146 {C07: French Tarrasch: 3...c5, 4 Ngf3 and 4 exd5 Qxd5.} 9. Nbxd4 Nxd4 10. Nxd4 Be7 11. c3 O-O 12. Qf3 Qc7 13. Bd3 Bd7 14. Re1 Rfd8 15. Bg5 Qc5 16. Qg3 Nh5 17. Bxe7 Qxe7 18. Qf3 Qg5 19. g3 Rab8 20. h4 Qh6 21. Re5 g6 22. Rae1 Bc6 23. Nxc6 bxc6 24. R5e2 Qf8 25. b3 Ng7 26. Be4 c5 {½-½ (26) Mamedov,R (2659)-Andreikin,D (2724) Moscow 2019} 1/2-1/2

[Event "Charlotte Holiday IM 2020"]
[Site "Charlotte"]
[Date "2020.12.31"]
[Round "9.4"]
[White "Vijay, Keerthi K."]
[Black "Liang, Jason"]
[Result "0-1"]
[ECO "B13"]
[WhiteElo "2242"]
[BlackElo "2317"]
[Annotator "TA"]
[PlyCount "52"]
[EventDate "2020.12.26"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,52,0,0,0,0,3,0,0,0,0,0,8,-125,-117,-133,-112,-115,-135,-137,-79,-174,-168,-158,-165,-189,-118,-107,-106,-152,-100,-107,-99,-106,-40,-416,-374,-414,-403,-891,-882,-932,-831]} 1. e4 c6 2. c4 d5 3. exd5 cxd5 4. cxd5 Nf6 5. Nc3 Nxd5 6. d4 Nc6 7. Nf3 Bf5 {next ...Ndb4 is good for Black. B13: Caro-Kann: Exchange Variation and Panov-Botvinnik Attack.} 8. Bb5 e6 9. O-O Be7 {The position is equal.} 10. Ne5 Rc8 {[#]} 11. Qa4 $146 {[%cal Re5c6]} ({Predecessor:} 11. Be3 O-O 12. Nxc6 bxc6 13. Bd3 Bxd3 14. Qxd3 Qb6 15. Rab1 Rfd8 16. Qe2 Bf6 17. Rfd1 {½-½ (32) Tiraspolski,A (1664)-Schindehuette,F (1507) Frankfurt 2014}) 11... Ndb4 12. Qxa7 (12. a3 $11 {remains equal.} a6 13. axb4 axb5 14. Qxb5) 12... O-O $17 13. Bxc6 bxc6 14. a3 Nc2 15. Ra2 Nxd4 ({Better is} 15... Rc7 16. Qb6 Nxd4) 16. Rd1 (16. Nd7 $17) 16... c5 $19 17. Be3 Rc7 $36 {[%mdl 2048] Black is in control.} 18. Qb6 {[#]} Bf6 (18... f6 $1 $19 {[%cal Rf6e5]} 19. Nf3 e5 20. Bxd4 cxd4 21. Qb3+ Kh8) 19. f4 $17 Qc8 20. a4 Rb7 (20... Be7 $142 {And now ...Rd8 would win.} 21. Nb5 (21. Bxd4 $2 cxd4 22. Nb5 Rc2 $19) 21... Rb7) 21. Qa6 Rd8 22. a5 Qc7 (22... Bc2 $17 23. Rd2 Qb8 24. Bxd4 cxd4 25. Rxc2 dxc3 26. Rxc3 Rd1+ 27. Kf2 g5) 23. Nd3 $2 {[%mdl 8192] [#] White does not recover from this.} (23. Qf1 $1 $15) 23... Nc2 $19 24. Nxc5 Rbb8 ({Much less strong is} 24... Rxd1+ 25. Nxd1 Rb8 26. Bf2 $19) 25. Bf2 (25. Rxd8+ $142 Qxd8 26. N5e4 Bxc3 27. Nxc3 Nxe3 28. Qa7) 25... Bxc3 26. Qe2 Bd4 {Weighted Error Value: White=0.67/Black=0.13} 0-1

[Event "Charlotte Holiday IM 2020"]
[Site "Charlotte"]
[Date "2020.12.31"]
[Round "9.5"]
[White "Diulger, Alexey"]
[Black "Vivekananthan, Anish"]
[Result "1-0"]
[ECO "A42"]
[WhiteElo "2298"]
[BlackElo "2305"]
[Annotator "TA"]
[PlyCount "155"]
[EventDate "2020.12.26"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,155,35,36,16,22,-15,0,-14,47,0,28,-25,29,-9,22,8,66,65,68,60,64,35,36,26,47,41,48,40,72,57,72,62,100,106,97,93,94,87,102,86,148,150,220,111,192,104,153,151,168,75,172,181,191,169,191,179,180,128,227,183,185,178,197,177,231,199,316,299,340,324,465,417,395,375,347,297,460,455,447,351,340,313,462,314,354,174,202,175,294,276,259,255,239,179,322,44,54,48,35,0,145,163,158,142,160,143,185,187,233,228,264,0,0,0,0,0,0,0,0,-64,-70,-67,-58,-68,-58,-79,-58,-58,-8,-8,0,-18,0,-29993,29969,12812,5093,0,0,0,29988,29989,29989,29990,29993,29994]} 1. c4 g6 2. Nc3 Bg7 3. e4 d6 4. d4 e5 5. d5 a5 6. Be3 Nd7 7. a3 {A42: Modern Defence: Averbakh Variation.} Ne7 8. b4 f5 9. f3 $1 {[#] The position is equal.} b6 $146 (9... Nf6 $11) ({Predecessor:} 9... Nf6 10. Bd3 c6 11. dxc6 bxc6 12. Nge2 fxe4 13. Nxe4 Nxe4 14. fxe4 O-O 15. Nc3 Be6 {1-0 (37) Tejero Royo,F (2120)-Madina Yadarola,M (2273) Benidorm 2011}) 10. Rc1 O-O 11. h3 (11. Nh3 $142) 11... Ba6 (11... Nf6 $142) 12. g4 Nf6 13. Bd3 h5 (13... axb4 $11 14. axb4 Rf7) 14. g5 $14 Nd7 15. h4 Kh7 16. Rh2 Rf7 17. Rhc2 Bf8 18. Bf2 Kg8 19. Kf1 Kh7 20. Kg2 Kg8 21. Nge2 Kh7 22. Ng3 fxe4 23. fxe4 Rf4 24. Nge2 Rf7 25. Be3 Ng8 (25... Nb8 $142) 26. Ng3 $16 Bc8 (26... Ne7 $16 27. Rf2 Rxf2+ 28. Bxf2 Bc8) 27. Be2 (27. Nxh5 $1 $18 {Threatens to win with Ng3.} axb4 28. axb4) 27... Kh8 (27... Ndf6 $16) 28. Nb5 (28. Bxh5 $1 $18 Ne7 29. Bg4 {[%mdl 64] Remove Defender, Decoy}) 28... Rh7 29. Qf1 Be7 30. Bd3 (30. Qf2 $18) 30... Bf8 (30... axb4 $16 31. axb4 Nb8) 31. Rf2 $18 Ba6 32. Nc3 Bb7 33. Qe2 Be7 34. Rcf1 (34. Nb5 $18) 34... Qe8 (34... axb4 $16 35. axb4 Nb8) 35. Bc1 Bc8 36. Bb2 Ba6 37. Qd2 Bd8 (37... Qd8 $142 38. Qe3 Qc8) 38. Nce2 Bb7 (38... Rg7 $142 39. Nc3 (39. bxa5 bxa5 40. Bc3 Nc5 $16) 39... Ne7) 39. Nf4 Rc8 40. Ne6 Be7 (40... c6 $142 41. Rf3 Re7) 41. bxa5 Nc5 42. Nxc5 bxc5 43. Ne2 Ra8 (43... Rb8 {was called for.} 44. Nf4 Bc8) 44. Nf4 Bc8 45. Be2 Rg7 46. Nd3 {Qc3 is the strong threat.} Kh7 (46... Rb8 {was necessary.} 47. Ba1 Rb3) 47. Bc3 c6 48. Nb2 (48. Nxe5 $142 dxe5 49. Bxe5) 48... Rb8 49. Bd1 Kh8 (49... Bd8 {keeps fighting.} 50. Qd3 Bc7) 50. Na4 cxd5 51. exd5 Bd8 52. Qe3 Bf5 (52... Bc7 $142 53. Rf8 Qe7) 53. Nb6 $2 ({White has to play} 53. Nxc5 $1 $18 dxc5 54. Qxe5 Qxe5 55. Bxe5) 53... Bxb6 $14 54. axb6 Rxb6 55. a4 {[%cal Ba3a4,Ba4a5][%mdl 32]} Ra7 (55... Ne7 $11 {keeps the balance.}) 56. a5 $16 Rb1 {[#]} 57. Bxh5 $1 {[%mdl 512]} Rxf1 58. Rxf1 Qa4 {[#]} 59. Be2 Ne7 60. h5 Kg8 61. hxg6 $2 ({White should try} 61. Bd3 $18) 61... Nxg6 $11 62. Kg1 Nf4 63. Rxf4 exf4 64. Qxf4 Qc2 65. Qxd6 (65. Qe3 $1 $11 Be4 66. Qd2) 65... Qxc3 $15 (65... Qc1+ $6 66. Kf2 $14) 66. Qb8+ {[%mdl 64] [#] Double Attack} Bc8 $1 67. Qxc8+ {[%mdl 4160] Endgame Double Attack. KQR-KQB} (67. Qxa7 $2 {perishes.} Qg3+ 68. Kh1 Qe1+ 69. Kh2 Qf2+ 70. Kh1 Qe1+ 71. Kg2 Qxe2+ 72. Kg1 Qg4+ 73. Kf2 Qh4+ 74. Ke3 Qd4+ 75. Kf3 Qd3+ 76. Kf4 Qd4+ 77. Kg3 Qg4+ 78. Kf2 Qf4+ 79. Kg2 Qe4+ 80. Kg3 Qg4+ 81. Kf2 $19) 67... Kg7 {Strongly threatening ...Qg3+.} 68. Qe6 ({But not} 68. Qxc5 $2 Rf7 $19) 68... Qc1+ 69. Kf2 {And now Qe5+ would win.} Rf7+ 70. Bf3 $1 Qxg5 71. d6 ({Avoid the trap} 71. Ke2 $2 Re7 $19) 71... Qd2+ 72. Kg3 $2 {[%mdl 8192]} (72. Kg1 $11) 72... Qxa5 $4 {[%mdl 8192]} (72... Qf4+ {and all is fine.} 73. Kf2 Qxf3+ 74. Ke1 Qf1+ 75. Kd2 Rf2+ 76. Kc3 Qa1+ {[%mdl 64] Double Attack} 77. Kb3 Qb2+ 78. Ka4 Qb4#) 73. Qe5+ Rf6 74. d7 $2 (74. Bh5 $18 {White threatens Qg5+ and mate.} Qd8 75. Qe7+ Qxe7 76. dxe7 Rf8 77. e8=Q Rxe8 78. Bxe8 Kf8 79. Bh5) 74... Qd8 $11 75. Bg4 {aiming for Qg5+.} Kf7 $2 {[%mdl 8192]} (75... Qf8 $11 76. Qg5+ Kh7) 76. Qe8+ $1 {[%mdl 64] Promotion. White mates.} Qxe8 77. Bh5+ {[%mdl 64] Skewer} Rg6+ 78. Bxg6+ {White used his chance.  Weighted Error Value: White=0.33/Black=0.43} 1-0

