[Event "86th BRA-ch 2019"]
[Site "Natal"]
[Date "2020.01.10"]
[Round "1.1"]
[White "Diamant, Andre"]
[Black "Ferreira, Vitor Hugo Vieira"]
[Result "1-0"]
[WhiteElo "2547"]
[BlackElo "2123"]
[Annotator "TA"]
[PlyCount "7"]
[EventDate "2020.01.05"]
[EventType "k.o."]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 7,7,-109]} 1. e4 e5 2. Bc4 Nc6 3. Nf3 Nf6 4. Bf1 $146 ({Predecessor:} 4. Ng5 d5 5. exd5 Na5 6. Bb5+ c6 7. dxc6 bxc6 8. Bd3 Nd5 9. Nf3 Bd6 10. O-O O-O 11. Re1 Re8 12. Nc3 f5 13. Bf1 e4 14. Nd4 Bc5 15. Nb3 Nxb3 16. axb3 {1-0 (32) Aronian,L (2775)-Amin,B (2683) Moscow 2019}) 1-0

[Event "86th BRA-ch 2019"]
[Site "Natal"]
[Date "2020.01.10"]
[Round "1.1"]
[White "Fier, Alexandr"]
[Black "De Oliveira, Victor Gabriel C."]
[Result "1-0"]
[ECO "B21"]
[WhiteElo "2528"]
[BlackElo "2146"]
[Annotator "TA"]
[PlyCount "61"]
[EventDate "2020.01.05"]
[EventType "k.o."]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,61,39,39,56,56,54,52,71,66,108,117,122,109,129,122,131,73,83,27,65,10,183,192,255,252,252,246,239,89,62,55,148,148,165,129,174,160,192,60,69,78,205,-624,86,85,156,172,355,218]} 1. e4 c5 2. Nc3 Nc6 3. Bb5 g6 4. Bxc6 dxc6 5. f4 Bg7 6. Nf3 Nf6 7. O-O O-O 8. d3 Qc7 {B21: Sicilian: 2 f4 and Morra Gambit} (8... b5 9. Be3 c4 10. dxc4 b4 11. Na4 Nxe4 12. Qe1 Qa5 13. Bd4 Qxa4 14. Bxg7 Kxg7 15. Qxe4 Bf5 16. Qe5+ {1-0 (57) Bachmann,A (2593)-Hausrath,D (2503) Berlin 2015}) 9. Qe1 b5 $146 ({Predecessor:} 9... Nh5 10. Qh4 Bf6 11. Qf2 Bxc3 12. bxc3 Nxf4 13. Ng5 e5 14. Bxf4 exf4 15. Qxc5 f6 16. Qc4+ {1-0 (51) Bachmann,A (2470)-Stamenkovic,D (2423) Vitoria 2007}) 10. Qh4 b4 {White is slightly better.} 11. Nd1 Bg4 12. Ne3 Bxf3 13. Rxf3 Rad8 14. f5 e6 15. Nc4 (15. fxg6 $142 fxg6 16. Nc4) 15... exf5 $16 16. Bg5 ({White should try} 16. Be3 $16) 16... Ng4 17. Bxd8 (17. Bf4 $1 $14 Be5 18. Nxe5 Nxe5 19. Rh3) 17... Rxd8 $2 (17... Qxd8 $11 {and Black is okay.} 18. Qxd8 Rxd8) 18. exf5 $18 Bd4+ (18... h5 $142 19. fxg6 fxg6) 19. Kh1 h5 20. Re1 {[#] Black must now prevent fxg6.} Bf6 21. Qg3 (21. Qh3 $18 {is the precise move to win.}) 21... Qxg3 $16 22. hxg3 {And now fxg6 would win.} Kg7 (22... g5 $14) 23. fxg6 Kxg6 24. Rf4 Bg5 25. Rff1 Bf6 26. Ne3 ({Better is} 26. Na5 $18) 26... Nxe3 27. Rxe3 Bd4 (27... Bxb2 $16 28. Re7 f6) 28. Kh2 $4 {[%mdl 8192] [#]} (28. Re7 $18) 28... Bxb2 $2 (28... Bxe3 $19 29. b3 Rd6) 29. Re4 Rd7 (29... f6 $142) 30. g4 {Hoping for gxh5+.} Bd4 $2 (30... Rd5 31. Kh3 f6) 31. Kg3 {Accuracy: White = 36%, Black = 25%.} 1-0

[Event "86th BRA-ch 2019"]
[Site "Natal"]
[Date "2020.01.10"]
[Round "1.1"]
[White "Labussiere, Victor"]
[Black "Rocha, Vitor Firmo de Souza"]
[Result "1-0"]
[ECO "E04"]
[WhiteElo "2363"]
[BlackElo "2200"]
[Annotator "TA"]
[PlyCount "97"]
[EventDate "2020.01.05"]
[EventType "k.o."]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,97,14,29,16,106,104,102,82,76,69,100,96,138,127,130,137,156,137,149,149,166,154,157,119,131,127,135,122,113,116,129,137,111,112,162,197,179,200,179,181,229,223,238,244,280,240,279,262,271,271,270,269,283,230,423,420,424,422,415,413,414,410,1561,354,410,410,515,515,523,484,854,807,710,629,1255,1183,1587,1350,1218,964,1414,1299,1811,1761,29983,29984,29987,29988]} 1. c4 e6 2. Nf3 Nf6 3. g3 d5 4. d4 dxc4 5. Bg2 a6 6. O-O Nc6 7. Nbd2 {E04: Open Catalan: 5 Nf3} Rb8 $146 (7... b5 $11) ({Predecessor:} 7... b5 8. b3 Rb8 9. Bb2 cxb3 10. Nxb3 Be7 11. Rc1 Bb7 12. Ne1 Na7 13. Bxb7 Rxb7 14. Nd3 O-O {½-½ (41) Vidit,S (2722)-Nakamura,H (2741) Kolkata 2019}) 8. Nxc4 $16 Be7 9. e3 {White is better.} O-O 10. Qe2 Bd7 11. Rd1 Re8 12. e4 Qc8 13. Bf4 Nh5 14. Be3 Nf6 15. Nfe5 b5 {[#] ...Rd8 is the strong threat.} 16. Nd2 {[%cal Bc4d2,Bd2b3,Bb3c5][%mdl 32]} Rd8 17. Rac1 Nxe5 18. dxe5 Ne8 19. Nb3 b4 20. f4 $36 {[%mdl 2048] White has strong initiative.} Bb5 21. Qf2 Rxd1+ 22. Rxd1 a5 23. Bc5 (23. Nxa5 Ra8 $16) 23... Bxc5 24. Nxc5 g6 25. Bf1 a4 26. Qd4 Bxf1 27. Kxf1 ({Resist} 27. Rxf1 $6 Qd8) 27... h5 28. Kf2 a3 29. b3 Rb5 30. Rc1 {[%cal Bd1c1,Bc1c4,Bc4c6][%mdl 32]} c6 31. Nd3 Qb7 32. Rc4 Qb6 $2 {[#]} (32... h4 33. gxh4 (33. Nxb4 c5 $11) (33. Rxb4 hxg3+ 34. hxg3 Rxb4 $18) 33... Qe7) 33. Qxb6 $18 Rxb6 34. Nxb4 Nc7 35. Rxc6 Rxb4 36. Rxc7 Rxe4 {[%mdl 4096] Endgame KR-KR} (36... g5 $142 37. Ke3 gxf4+ 38. gxf4 Rb8) 37. Ra7 $2 (37. Rc8+ Kg7 38. Rc4 Rxc4 39. bxc4) 37... Rd4 {intending ...Rd2+.} 38. Ke3 Rd1 39. Rxa3 h4 40. gxh4 Rh1 (40... Rb1 $142 41. Ra8+ Kg7) 41. Ra8+ Kg7 42. b4 {[%cal Bb3b4,Bb4b5,Bb5b6,Bb6b7][%mdl 32]} Rxh2 43. b5 Kh6 44. a4 Rb2 45. Kf3 Rb1 46. Rb8 Ra1 47. b6 Rxa4 48. b7 Ra3+ 49. Kg4 {Accuracy: White = 73%, Black = 37%.} 1-0

[Event "86th BRA-ch 2019"]
[Site "Natal"]
[Date "2020.01.10"]
[Round "1.1"]
[White "Martins, Vinicius Tine"]
[Black "Zallio, Luciano de Souza"]
[Result "1-0"]
[ECO "E04"]
[WhiteElo "2309"]
[BlackElo "2245"]
[Annotator "TA"]
[PlyCount "67"]
[EventDate "2020.01.05"]
[EventType "k.o."]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,67,20,50,-67,-56,-96,-102,-89,-90,-86,-65,-97,-94,-93,-92,-94,-108,-126,-77,-85,-74,-83,-77,-63,-80,-74,-73,-92,-64,-82,-79,-89,-93,-87,-10,-16,4,4,4,2,7,2,2,0,77,82,244,215,243,243,1080,1076,1024,1021,2011,1757]} 1. d4 d5 2. Nf3 e6 3. c4 Nf6 4. g3 dxc4 5. Bg2 c5 6. O-O Nc6 7. Qa4 cxd4 {[#]} 8. Qxc4 {E04: Open Catalan: 5 Nf3} ({White should play} 8. Nxd4 $1 $14 {[%mdl 512]} Qxd4 9. Bxc6+ Bd7 10. Rd1 Bxc6 11. Qxc6+ $1 {[%mdl 512]} bxc6 12. Rxd4) (8. Nxd4 Qxd4 9. Bxc6+ Bd7 10. Rd1 Bxc6 11. Qxc6+ bxc6 12. Rxd4 Nd5 13. Rxc4 Kd7 14. Nd2 Be7 15. Nf3 f6 16. Bd2 Rhb8 17. e4 Nb6 18. Rc2 e5 19. Rd1 Ke8 20. Rxc6 {1-0 (52) Rapport,R (2736)-Turner,M (2524) England 2019}) 8... Be7 $15 9. Rd1 e5 10. e3 {[%cal Re3d4] Black is better.} Bg4 11. h3 $146 ({Predecessor:} 11. exd4 Nxd4 12. Rxd4 exd4 13. Nxd4 O-O 14. Bf4 Rc8 15. Qa4 Nd5 {½-½ (61) Turov,V (2112)-Grigoriev,V (2000) Perm 2010}) 11... Be6 12. Qe2 O-O 13. exd4 exd4 {[#]} 14. Be3 $1 {[%cal Rf3d4][%mdl 512]} Bc5 {[#] aiming for ...Qb6.} (14... dxe3 15. Rxd8) 15. Nc3 $1 {[%mdl 512]} Re8 (15... dxc3 16. Rxd8) 16. Qb5 Bb6 {White must now prevent ...Bd7.} 17. Na4 Bd7 18. Nxb6 axb6 19. Bg5 Ne5 20. Qb4 Ra4 21. Qb3 Nxf3+ 22. Bxf3 h6 23. Bf4 Qa8 (23... g5 $17 24. Bd2 Ne4) 24. Qxb6 $11 Rxa2 (24... Bc6 {keeps more tension.} 25. Bxc6 bxc6 26. Rxd4 Nd5 27. Qc5 Nxf4 28. Rxf4 Rxf4 29. gxf4 Qb8) 25. Rxa2 Qxa2 26. Qxd4 Bc6 27. Bxc6 bxc6 28. Bxh6 Re4 {[#]} (28... c5 $1 $11 {remains equal.} 29. Qd6 Qxb2) 29. Qc3 $1 $16 Re2 $2 (29... Qe6 $16) 30. Rd8+ $18 ({Much less strong is} 30. Qxc6 $6 Qb3 $16) 30... Kh7 {Strongly threatening ...Qb1+.} 31. Qd3+ {[%mdl 64] Double Attack} g6 $2 (31... Re4) 32. Qxe2 {And now Qe7! would win.White is clearly winning.} Kxh6 33. Qe5 Qb1+ 34. Kh2 {Accuracy: White = 63%, Black = 45%.} 1-0

[Event "86th BRA-ch 2019"]
[Site "Natal"]
[Date "2020.01.10"]
[Round "1.1"]
[White "Brito, Luismar"]
[Black "Macedo, Maximo Iack"]
[Result "1-0"]
[ECO "D00"]
[WhiteElo "2227"]
[BlackElo "2324"]
[Annotator "TA"]
[PlyCount "69"]
[EventDate "2020.01.05"]
[EventType "k.o."]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,69,-27,-21,-72,0,-9,20,-8,39,23,25,31,13,19,40,2,31,18,13,9,40,8,25,0,81,104,146,94,91,41,47,41,45,43,41,44,48,34,72,35,75,72,76,83,85,57,57,57,58,56,54,49,66,29,43,29,15,7,12,-52,-36,-71]} 1. Nc3 d5 2. d4 Nf6 3. Bf4 a6 4. Qd3 (4. e3 e6 5. Nf3 c5 6. Bd3 Nbd7 7. h3 b5 8. a3 Bb7 9. O-O Be7 10. dxc5 Nxc5 11. Ne2 O-O {½-½ (66) Lagarde,M (2657)-Fressinet,L (2633) Montagne 2019}) 4... e6 5. e4 c5 6. Nf3 {[#] D00: 1 d4 d5: Unusual lines} (6. exd5 $11 {keeps the balance.} cxd4 7. Qxd4) 6... c4 $146 (6... cxd4 $1 $17 7. Nxd4 Bb4) ({Predecessor:} 6... cxd4 7. Nxd4 Bb4 8. exd5 Nxd5 9. Bd2 Nxc3 10. Bxc3 Qa5 11. Be2 Bxc3+ 12. bxc3 {0-1 (31) Ejsing,E (2205)-Hynninen,J (2220) Novi Sad 2016}) 7. Qe3 $11 Be7 8. Be2 {The position is equal.} b5 9. exd5 exd5 10. Ne5 O-O 11. O-O Bf5 12. Bd1 Ne4 13. Nxe4 Bxe4 14. Qh3 Qb6 15. Be3 f6 16. Nf3 Bg6 (16... Nc6 $11) 17. Nh4 $16 Bf7 18. Nf5 (18. Bh6 $142) 18... Re8 19. Bf3 Bf8 20. c3 Nc6 {[%cal Bb8c6,Bc6e7,Be7c8,Bc8d6][%mdl 32]} 21. Bf4 b4 22. Qg3 Be6 23. Ne3 Ne7 24. Rfe1 (24. Bd6 $5 {[%cal Rd6e7]} Qc6 25. Bxb4 $16) 24... Bf7 25. Bd6 {[#] Black must now prevent Bxe7.} bxc3 26. bxc3 Qc6 27. h4 Rad8 28. Bc5 Nc8 29. Nf5 Bg6 30. Bxf8 Kxf8 31. Ne3 Be4 32. h5 Nd6 33. h6 {[%csl Gh6][%cal Rg3g7]} g6 34. Bg4 (34. Qf4 $11 Nf7 35. Ng4) 34... f5 $15 35. Qh4 {[%mdl 32768] Accuracy: White = 40%, Black = 56%. . Loss on time!?} 1-0

[Event "86th BRA-ch 2019"]
[Site "Natal"]
[Date "2020.01.10"]
[Round "1.1"]
[White "Jordao Barbosa, Marcio"]
[Black "Molina, Roberto Junio Brito"]
[Result "1/2-1/2"]
[ECO "C11"]
[WhiteElo "2181"]
[BlackElo "2431"]
[Annotator "TA"]
[PlyCount "70"]
[EventDate "2020.01.05"]
[EventType "k.o."]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,70,1,0,0,12,12,18,17,16,16,19,18,25,24,37,35,47,34,60,60,60,60,58,52,55,58,73,78,72,67,89,15,31,13,15,18,33,31,9,13,10,14,56,56,62,69,75,33,36,0,64,0,49,0,0]} 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. e5 Nfd7 5. f4 c5 6. Nf3 Nc6 7. Be3 a6 8. Qd2 b5 9. dxc5 Bxc5 10. Ne2 {C11: French: Classical System: 4 e5 and 4 Bg5 dxe4} Bxe3 (10... O-O 11. Ned4 Qb6 12. c3 b4 13. Bd3 a5 14. O-O Ba6 15. Kh1 Bxd3 16. Qxd3 Qa6 17. Qc2 bxc3 18. bxc3 {½-½ (31) Dominguez Perez,L (2739)-So,W (2788) Saint Louis 2017}) 11. Qxe3 Qa5+ 12. Qd2 Qxd2+ 13. Kxd2 Nc5 14. Ned4 Nxd4 15. Nxd4 f6 16. Bd3 fxe5 17. fxe5 Bd7 $146 ({Predecessor:} 17... O-O) 18. Rhf1 Ke7 19. Rf4 Raf8 20. Raf1 Rxf4 21. Rxf4 Be8 22. b4 Nb7 23. a4 Nd8 24. a5 ({Better is} 24. axb5 $16 axb5 25. Rf1 (25. Nxb5 Nc6 $11) (25. Bxb5 Bxb5 26. Nxb5 Nc6 $11)) 24... Nf7 $11 25. Rg4 g5 26. Rg3 Nxe5 27. Rxg5 Kf6 28. Rg3 Bg6 29. Nb3 Nd7 30. Rh3 Rc8 31. Bxg6 Kxg6 32. Rg3+ Kf7 33. Rh3 Kg6 34. Rg3+ (34. Rc3 $1 $14 Rc4 35. Rxc4 dxc4 36. Nc5 Nxc5 37. bxc5) 34... Kf6 35. Rh3 Kg6 $1 {Accuracy: White = 80%, Black = 55%.} 1/2-1/2

[Event "86th BRA-ch 2019"]
[Site "Natal"]
[Date "2020.01.10"]
[Round "1.1"]
[White "Pinto, Carlos Henrique Lope"]
[Black "Lima, Darcy"]
[Result "0-1"]
[ECO "D02"]
[WhiteElo "2135"]
[BlackElo "2534"]
[Annotator "TA"]
[PlyCount "76"]
[EventDate "2020.01.05"]
[EventType "k.o."]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,76,6,2,13,0,0,-7,-1,-31,-26,-22,-8,-38,-29,-37,-27,-81,-76,-118,-120,-144,-105,-130,-68,-67,-41,-35,22,-44,-42,-49,-42,-39,-37,-35,0,0,73,40,82,-29,21,20,23,-91,-76,-119,-41,-136,-150,-502,-502,-502,-501,-501,-498,-494,-494,-494,-483,-496,-471,-522,-519]} 1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. g3 cxd4 5. Nxd4 Nc6 6. Nxc6 bxc6 7. Bg2 d5 8. O-O Be7 {D02: 1 d4 d5 2 Nf3 sidelines, including 2...Nf6 3 g3 and 2...Nf6 3 Bf4} 9. Nc3 (9. b3 O-O 10. Nd2 e5 11. Bb2 e4 12. Qc2 Bf5 13. Rad1 Qc8 14. Qc1 a5 15. f3 e3 16. Nb1 {1-0 (30) Frolyanov,D (2517)-Narva,M (2347) chess.com INT 2019}) 9... O-O 10. b3 Ba6 {The position is equal.} 11. cxd5 cxd5 12. Bb2 Qa5 $146 ({Predecessor:} 12... Rc8 13. Rc1 d4 14. Na4 Rxc1 15. Bxc1 e5 16. Qd2 {½-½ (37) Jedlicka,A (2249)-Ivanov,M (2388) Hradec Kralove 2014}) 13. a3 Rfc8 14. b4 Qd8 15. Qa4 (15. Re1 $11) 15... Bc4 $17 16. Rfd1 a5 {[#] White must now prevent ...axb4.} 17. b5 Qb6 18. Rab1 Bc5 (18... Nd7 $17 19. Rd2 Nc5) 19. e3 $15 Bxe3 20. fxe3 Qxe3+ 21. Kh1 Ng4 {( -> ...Nf2+)} 22. h3 Nf2+ {[%mdl 64] [#] Double Attack} 23. Kh2 Nxd1 24. Qxd1 a4 25. Qg4 Qh6 (25... f6 $1 $11 {keeps the balance.}) 26. Qd4 {[%mdl 1024] White has strong compensation.} Qg6 27. Rd1 (27. b6 $16 {b7 is the strong threat.} Rab8 28. Rc1 (28. Nxa4 f6 $16)) 27... Rcb8 28. b6 f6 {With the idea ...Ra6.} 29. Rd2 (29. Ne4 $11 Ra6 30. b7) 29... Ra6 $17 30. Qc5 Qe8 ({Black should try} 30... h5 $17 31. b7 Qe8) 31. b7 (31. Ne4 $1 $15) 31... Rxb7 32. Nxd5 $2 (32. Qf2 $17) 32... Bxd5 $19 {Black is clearly winning.} 33. Bxd5 exd5 34. Qxd5+ Rf7 35. Bc3 Re6 36. Qc4 h6 37. Ba5 {Strongly threatening Rd8.} Qc6 38. Rd8+ Rf8 {Accuracy: White = 25%, Black = 55%.} 0-1

[Event "86th BRA-ch 2019"]
[Site "Natal"]
[Date "2020.01.10"]
[Round "1.1"]
[White "Mourao, Igor A.C.Lofredo"]
[Black "Supi, Luis Paulo"]
[Result "0-1"]
[ECO "E20"]
[WhiteElo "2112"]
[BlackElo "2577"]
[Annotator "TA"]
[PlyCount "78"]
[EventDate "2020.01.05"]
[EventType "k.o."]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,78,-6,5,-12,-13,-28,-35,-34,-27,-34,-17,-20,-20,-82,-83,-73,-84,-92,-70,-167,-159,-168,-162,-166,-157,-166,-169,-148,-147,-150,-141,-146,-160,-208,-195,-208,-201,-167,-157,-175,-187,-171,-152,-174,-155,-246,-249,-242,-240,-242,-241,-350,-317,-352,-324,-309,-275,-275,-276,-275,-274,-275,-274,-386,-386]} 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. g3 O-O 5. Bg2 Bxc3+ 6. bxc3 d6 7. Nf3 Nc6 8. O-O e5 9. dxe5 {E20: Nimzo-Indian: 4 g3 and 4 f3} (9. Qa4 Bd7 10. Qa3 h6 11. Rd1 Re8 12. c5 e4 13. Ne1 d5 14. Nc2 b6 15. Ne3 Na5 16. Rb1 Be6 {0-1 (46) Xu,X (2583)-Le,Q (2694) Xingtai 2019}) 9... dxe5 10. Rb1 Rb8 $146 ({Predecessor:} 10... Qxd1 11. Rxd1 Rb8 12. Ng5 Bf5 13. e4 Bg6 14. f3 h6 15. Nh3 Rfd8 16. Be3 Nd7 {0-1 (60) Schaefer,M (2197)-Hamid,E (2171) Germany 2017}) 11. Nd2 {[#] Strongly threatening Bxc6.Black is slightly better.} Bf5 12. Rb2 e4 13. Nb3 Ne5 {aiming for ...Qxd1.} 14. Na5 (14. Qd4 $11 {remains equal.} Qxd4 15. Nxd4) 14... b6 $17 {Hoping for ...Qxd1.} 15. Bf4 Qxd1 ({Of course not} 15... bxa5 $6 16. Rxb8 Qxb8 17. Bxe5 $14) 16. Rxd1 Rfd8 $36 {[%mdl 2048] Black fights for an advantage.} 17. Rbd2 (17. Rdb1 $15 e3 18. Rf1) 17... Rxd2 $19 18. Rxd2 bxa5 19. Bxe5 {[#]} Nd7 $1 20. g4 (20. Bxc7 {is a self mate.} Rb1+ 21. Rd1 Rxd1+ 22. Bf1 Bh3 23. Bxa5 Rxf1#) 20... Rb1+ ({Don't do} 20... Nxe5 21. gxf5 Rb1+ 22. Bf1 $17) 21. Bf1 Bxg4 {( -> ...Bh3)} 22. Kg2 c5 23. Bc7 h5 24. f3 Be6 25. fxe4 a4 26. e3 Rc1 27. Kf2 Rxc3 28. e5 g6 29. Bg2 Nb6 30. Rd8+ (30. Bd5 $17) 30... Kg7 31. Bd5 Nxc4 32. Bxc4 Rxc4 {[%mdl 4096] Endgame KRB-KRB} 33. a3 (33. Rd2 {was worth a try.}) 33... g5 34. Bd6 Kg6 35. e4 Rxe4 36. Bxc5 Rxe5 37. Bxa7 Rf5+ 38. Kg1 Rf3 39. Bc5 (39. Rg8+ {might work better.} Kh6 40. h4) 39... Bh3 {Accuracy: White = 36%, Black = 89%.} 0-1

[Event "86th BRA-ch 2019"]
[Site "Natal"]
[Date "2020.01.11"]
[Round "1.2"]
[White "Supi, Luis Paulo"]
[Black "Mourao, Igor A.C.Lofredo"]
[Result "1/2-1/2"]
[ECO "A26"]
[WhiteElo "2577"]
[BlackElo "2112"]
[Annotator "TA"]
[PlyCount "27"]
[EventDate "2020.01.05"]
[EventType "k.o."]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,27,-4,-3,5,0,4,-23,-18,-23,-16,-33,2,0,-8,-8,-9,-32]} 1. c4 e5 2. d3 Nc6 3. Nf3 g6 4. Nc3 Bg7 5. g3 Nge7 6. Bg2 d6 7. Rb1 a5 {A26: English Opening vs King's Indian with ...Nc6 and d3} 8. a3 (8. O-O O-O 9. a3 h6 10. b4 axb4 11. axb4 Nf5 12. e3 Nce7 13. g4 e4 14. Nxe4 d5 15. cxd5 Nd6 16. h3 Nxd5 17. Bb2 Bxb2 18. Rxb2 Nxe4 19. dxe4 {½-½ (54) Dzagnidze,N (2570)-Khotenashvili,B (2504) Beijing 2014}) 8... Nd4 9. Nd2 c6 $146 {Black has an edge.} ({Predecessor:} 9... O-O 10. b4 axb4 11. axb4 f5 12. O-O Kh8 13. Bb2 h6 14. Ra1 Rxa1 15. Qxa1 {½-½ (59) Mandl,R (2425)-Wockenfuss,K (2315) Bayern 1996}) 10. b4 axb4 11. axb4 O-O 12. Bb2 {The position is equal.} f5 13. e3 Ne6 14. O-O 1/2-1/2

[Event "86th BRA-ch 2019"]
[Site "Natal"]
[Date "2020.01.11"]
[Round "1.2"]
[White "Lima, Darcy"]
[Black "Pinto, Carlos Henrique Lope"]
[Result "0-1"]
[ECO "E71"]
[WhiteElo "2534"]
[BlackElo "2135"]
[Annotator "TA"]
[PlyCount "70"]
[EventDate "2020.01.05"]
[EventType "k.o."]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 22,69,85,64,97,74,82,48,102,105,104,103,111,93,143,143,143,137,147,147,147,136,147,127,134,152,135,128,102,91,281,284,283,267,435,441,435,432,423,422,441,435,425,363,374,234,213,19,21,-29999]} 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. h3 O-O 6. Bg5 c5 7. d5 b5 8. cxb5 a6 9. bxa6 Bxa6 10. Bxa6 Rxa6 11. Nf3 Nbd7 12. O-O Qa5 $146 {E71: King's Indian: 4 e4 d6 5 h3} ({Predecessor:} 12... Qa8 13. Re1 Rb8 14. Rb1 Rab6 15. Qc2 Ne8 16. Bxe7 f6 17. e5 Nxe5 18. Nxe5 fxe5 19. Bg5 Nc7 20. Red1 {½-½ (54) Turna,S (2230)-Szegi,T (2225) Slovakia 2006}) 13. Re1 Rb8 14. Qc2 h6 (14... Ne8 $14) 15. Bd2 $16 Qb6 16. Rab1 Ne8 17. b3 Qa7 18. a4 Nc7 19. Nd1 {[%cal Bc3d1,Bd1e3,Be3c4][%mdl 32]} e6 {[#]} 20. dxe6 $1 Nxe6 21. Ne3 Qb7 22. Nc4 d5 23. exd5 Qxd5 24. a5 Nd4 25. Qd3 Rf6 $2 (25... Nxf3+ $16 26. Qxf3 Qxf3 27. gxf3 Nf8) 26. Nxd4 $18 cxd4 27. b4 Rc8 $2 {[#]} (27... h5 {was necessary.} 28. Rbc1 Re6 29. Rxe6 Qxe6) 28. Ne3 $1 {[%mdl 512]} Qd6 (28... dxe3 29. Qxd5) 29. Ng4 {[%mdl 64] Double Attack} Rf5 30. Bxh6 Ne5 31. Nxe5 Bxe5 32. Bd2 Bh2+ 33. Kf1 Bf4 {intending ...Bxd2.} 34. Bxf4 $2 ({White should try} 34. Rec1 $18 Rb8 35. Kg1) 34... Qxf4 $11 {[%csl Gf5][%cal Rf4f2]} 35. g3 $2 {[%mdl 8192] Accuracy: White = 53%, Black = 36%.} (35. Re2 $11 Rc1+ 36. Rxc1 Qxc1+ 37. Re1) 35... Qxf2# 0-1

[Event "86th BRA-ch 2019"]
[Site "Natal"]
[Date "2020.01.11"]
[Round "1.2"]
[White "Molina, Roberto Junio Brito"]
[Black "Jordao Barbosa, Marcio"]
[Result "1-0"]
[ECO "E05"]
[WhiteElo "2431"]
[BlackElo "2181"]
[Annotator "NA"]
[PlyCount "109"]
[EventDate "2020.01.05"]
[EventType "k.o."]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. Nf3 {[%emt 0:00:01]} Nf6 {[%emt 0:01:23]} 2. d4 {[%emt 0:00:11]} e6 {[%emt 0:00:22]} 3. c4 {[%emt 0:00:07]} d5 {[%emt 0:00:09]} 4. g3 {[%emt 0:00:06]} Be7 {[%emt 0:00:40]} 5. Bg2 {[%emt 0:00:07]} O-O {[%emt 0:00:12]} 6. O-O {[%emt 0:00:04]} dxc4 {[%emt 0:00:08]} 7. Qc2 {[%emt 0:00:13]} a6 {[%emt 0:01:11]} 8. a4 {[%emt 0:00:11]} Nc6 {[%emt 0:09:35]} 9. Qxc4 {[%emt 0:01:42]} Qd5 {[%emt 0:01:25]} 10. Nbd2 {[%emt 0:13:17]} Rd8 {[%emt 0:05:46] E05: Open Catalan: 5 Nf3 Be7} 11. Qxd5 {[%emt 0:04:41]} exd5 {[%emt 0:04:05]} 12. Nb3 {[%emt 0:06:39]} Bf5 {[%emt 0:08:40]} 13. Bf4 {[%emt 0:00:59]} Ne8 $146 {[%emt 0:03:56]} ({Predecessor:} 13... Bd6 14. Rfc1 Ne4 15. Ne1 Bxf4 16. gxf4 Nf6 17. e3 Rdc8 18. Nc5 {1-0 (40) Burmakin,V (2545)-Ibadov,D (2294) St Petersburg 2016}) 14. Rac1 {[%emt 0:01:40]} Be4 {[%emt 0:16:41]} 15. Rfd1 {[%emt 0:02:49]} Nb4 {[%emt 0:04:19]} 16. Ne1 {[%emt 0:03:29]} Bxg2 {[%emt 0:01:30]} 17. Kxg2 {[%emt 0:00:08]} c6 {[%emt 0:01:19]} 18. Nc5 {[%emt 0:05:42]} Bxc5 {[%emt 0:12:09]} 19. Rxc5 {[%emt 0:07:26]} a5 $1 {[%emt 0:04:43]} 20. b3 {[%emt 0:00:56]} Nd6 {[%emt 0:02:02]} 21. f3 {[%emt 0:00:40]} Na6 $11 {[%emt 0:01:04]} 22. Rcc1 {[%emt 0:01:06]} Nc7 {[%emt 0:00:48]} 23. g4 {[%emt 0:07:15]} Ne6 {[%emt 0:00:35]} 24. Bg3 {[%emt 0:00:09]} g6 {[%emt 0:04:04]} 25. e3 {[%emt 0:00:19]} f6 {[%emt 0:05:34]} 26. Nd3 {[%emt 0:00:29]} Nf7 {[%emt 0:00:37]} 27. Kf2 {[%emt 0:00:39]} Re8 {[%emt 0:00:25]} 28. Ne1 {[%emt 0:02:19]} Re7 {[%emt 0:00:24]} 29. Nc2 {[%emt 0:00:06]} Ng7 {[%emt 0:02:17]} 30. h3 {[%emt 0:03:16]} h5 {[%emt 0:00:52]} 31. Rh1 {[%emt 0:04:03]} f5 {[%emt 0:00:33]} 32. gxh5 {[%emt 0:01:20]} Nxh5 {[%emt 0:00:15]} 33. Rcg1 {[%emt 0:04:51]} Rae8 {[%emt 0:00:24]} 34. Be5 {[%emt 0:00:55]} Re6 {[%emt 0:05:57]} 35. f4 {[%emt 0:00:06]} Kh7 {[%emt 0:00:12]} 36. Ne1 {[%emt 0:00:29]} Nf6 {[%emt 0:00:41]} 37. Bxf6 {[%emt 0:00:16]} Rxf6 {[%emt 0:00:04]} 38. Nf3 {[%emt 0:00:10]} Nd6 {[%emt 0:00:24]} 39. h4 {[%emt 0:00:34]} Ne4+ {[%emt 0:00:43]} 40. Ke2 {[%emt 0:00:07]} Rh8 {[%emt 0:03:18]} 41. h5 {[%emt 0:00:27]} Kg7 {[%emt 0:00:25]} 42. Ne5 {[%emt 0:00:02]} Rh6 {[%emt 0:00:14]} 43. Ke1 {[%emt 0:00:51]} Re6 {[%emt 0:00:37]} 44. hxg6 {[%emt 0:00:11]} Rxh1 {[%emt 0:00:12]} 45. Rxh1 {[%emt 0:00:05]} Nf6 {[%emt 0:00:06]} 46. Ke2 {[%emt 0:00:22]} Re8 {[%emt 0:00:14]} 47. b4 {[%emt 0:01:07]} axb4 {[%emt 0:00:42]} 48. Rb1 {[%emt 0:00:01]} Ng4 {[%emt 0:00:19]} 49. Rxb4 {[%emt 0:00:22]} Nxe5 {[%emt 0:00:45]} 50. Rxb7+ {[%emt 0:00:20]} Kxg6 {[%emt 0:00:17]} 51. fxe5 {[%emt 0:00:31]} Ra8 {[%emt 0:00:15]} 52. Rb6 {[%emt 0:00:31]} Rxa4 {[%emt 0:00:18]} 53. Rxc6+ {[%emt 0:00:01]} Kg5 {[%emt 0:00:07]} 54. Kf3 {[%emt 0:01:01]} Ra3 {[%emt 0:00:16]} 55. Rc8 {[%emt 0:00:18]} 1-0

[Event "86th BRA-ch 2019"]
[Site "Natal"]
[Date "2020.01.11"]
[Round "1.2"]
[White "Macedo, Maximo Iack"]
[Black "Brito, Luismar"]
[Result "1-0"]
[ECO "E44"]
[WhiteElo "2324"]
[BlackElo "2227"]
[Annotator "ChessBase"]
[PlyCount "141"]
[EventDate "2020.01.05"]
[EventType "k.o."]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. d4 {[%emt 0:00:05]} Nf6 {[%emt 0:00:00]} 2. c4 {[%emt 0:00:25]} e6 {[%emt 0:00:00]} 3. Nc3 {[%emt 0:00:16]} Bb4 {[%emt 0:00:11]} 4. e3 {[%emt 0:01:01]} b6 {[%emt 0:01:27]} 5. Nge2 {[%emt 0:03:42]} Bb7 {[%emt 0:00:47]} 6. a3 {[%emt 0:00:11]} Bxc3+ {[%emt 0:01:29]} 7. Nxc3 {[%emt 0:00:44]} d6 {[%emt 0:00:34]} 8. Bd3 {[%emt 0:02:44]} e5 {[%emt 0:00:33]} 9. O-O {[%emt 0:01:57]} Nc6 {[%emt 0:00:43]} 10. d5 {[%emt 0:03:01]} Ne7 {[%emt 0:01:11]} 11. b4 {[%emt 0:03:57]} O-O {[%emt 0:01:26]} 12. Bb2 {[%emt 0:11:13]} Bc8 {[%emt 0:01:59]} 13. Qc2 {[%emt 0:00:54]} Ng6 {[%emt 0:01:19]} 14. f4 {[%emt 0:02:34]} Re8 {[%emt 0:03:02]} 15. f5 {[%emt 0:04:18]} Nf8 {[%emt 0:01:38]} 16. Rae1 {[%emt 0:07:13]} a5 {[%emt 0:02:37]} 17. e4 {[%emt 0:02:47]} Bd7 {[%emt 0:02:24]} 18. Bc1 {[%emt 0:02:32]} h6 {[%emt 0:01:10]} 19. Re3 {[%emt 0:08:56]} axb4 {[%emt 0:01:11]} 20. axb4 {[%emt 0:00:03]} Ra1 {[%emt 0:00:45]} 21. Na2 {[%emt 0:01:34]} Qa8 {[%emt 0:00:30]} 22. Re2 {[%emt 0:00:52]} Qa4 {[%emt 0:06:09]} 23. Qb2 {[%emt 0:01:38]} Rxc1 {[%emt 0:03:33]} 24. Rxc1 {[%emt 0:03:03]} Ra8 {[%emt 0:01:08]} 25. Nc3 {[%emt 0:00:44]} Qa7 {[%emt 0:00:38]} 26. Kh1 {[%emt 0:03:33]} b5 {[%emt 0:04:41]} 27. Nxb5 {[%emt 0:03:08]} Bxb5 {[%emt 0:01:12]} 28. cxb5 {[%emt 0:00:02]} N8d7 {[%emt 0:02:22]} 29. g3 {[%emt 0:01:08]} Kf8 {[%emt 0:01:16]} 30. Qc3 {[%emt 0:05:18]} Ne8 {[%emt 0:00:37]} 31. Kg2 {[%emt 0:00:21]} Ke7 {[%emt 0:00:56]} 32. Rcc2 {[%emt 0:01:38]} Nb6 {[%emt 0:00:53]} 33. Qd2 {[%emt 0:04:05]} Qa1 {[%emt 0:03:45]} 34. Qc3 {[%emt 0:02:26]} Qa7 {[%emt 0:01:49]} 35. g4 {[%emt 0:00:53]} Na4 {[%emt 0:00:38]} 36. Qa1 {[%emt 0:01:43]} Qb7 {[%emt 0:03:22]} 37. Ra2 {[%emt 0:02:05]} Nb6 {[%emt 0:00:05]} 38. Rxa8 {[%emt 0:00:52]} Nxa8 {[%emt 0:00:14]} 39. Ra2 {[%emt 0:01:02]} Nb6 {[%emt 0:00:08]} 40. Ra7 {[%emt 0:00:11]} Qb8 {[%emt 0:00:23]} 41. h4 {[%emt 0:01:55]} Kf8 {[%emt 0:01:00]} 42. Ra6 {[%emt 0:02:03]} Qb7 {[%emt 0:02:51]} 43. Kf3 {[%emt 0:05:31]} Qb8 {[%emt 0:02:38]} 44. g5 {[%emt 0:00:52]} Qd8 {[%emt 0:01:14]} 45. Qg1 {[%emt 0:02:46]} hxg5 {[%emt 0:02:13]} 46. hxg5 {[%emt 0:00:04]} Kg8 {[%emt 0:01:49]} 47. Ra2 {[%emt 0:00:20]} Kf8 {[%emt 0:00:44]} 48. Rh2 {[%emt 0:01:05]} Nd7 {[%emt 0:04:12]} 49. Rh8+ {[%emt 0:00:25]} Ke7 {[%emt 0:00:07]} 50. g6 {[%emt 0:01:10]} Ndf6 {[%emt 0:03:58]} 51. gxf7 {[%emt 0:00:11]} Kxf7 {[%emt 0:00:15]} 52. Qa7 {[%emt 0:01:19]} Nd7 {[%emt 0:00:36]} 53. b6 {[%emt 0:00:31]} Nxb6 {[%emt 0:02:31]} 54. Bb5 {[%emt 0:00:03]} Nd7 {[%emt 0:00:28]} 55. Ke2 {[%emt 0:01:28]} Qe7 {[%emt 0:01:55]} 56. Qg1 {[%emt 0:00:39]} Nf8 {[%emt 0:00:43]} 57. Bc6 {[%emt 0:01:04]} Nf6 {[%emt 0:00:54]} 58. Kd3 {[%emt 0:00:22]} N6h7 {[%emt 0:00:20]} 59. Qg4 {[%emt 0:00:31]} Nf6 {[%emt 0:01:43]} 60. Qe2 {[%emt 0:02:52]} Qd8 {[%emt 0:00:35]} 61. Qa2 {[%emt 0:00:00]} N6h7 {[%emt 0:01:08]} 62. Qg2 {[%emt 0:00:00]} Qh4 {[%emt 0:00:47]} 63. Bd7 {[%emt 0:00:00]} Qh6 {[%emt 0:03:53]} 64. Be6+ {[%emt 0:00:03]} Kf6 {[%emt 0:00:26]} 65. Kc4 {[%emt 0:00:28]} Qe3 {[%emt 0:01:17]} 66. Qc2 {[%emt 0:00:50]} Qg1 {[%emt 0:04:17]} 67. Kb3 {[%emt 0:00:27]} Qb6 {[%emt 0:02:16]} 68. Qc3 {[%emt 0:00:35]} Qa7 {[%emt 0:00:39]} 69. Qg3 {[%emt 0:00:20]} g6 {[%emt 0:07:43]} 70. Qh4+ {[%emt 0:00:12]} g5 {[%emt 0:01:11]} 71. Qh6+ {[%emt 0:00:08]} 1-0

[Event "86th BRA-ch 2019"]
[Site "Natal"]
[Date "2020.01.11"]
[Round "1.2"]
[White "Zallio, Luciano de Souza"]
[Black "Martins, Vinicius Tine"]
[Result "1-0"]
[ECO "D00"]
[WhiteElo "2245"]
[BlackElo "2309"]
[Annotator "NA"]
[PlyCount "112"]
[EventDate "2020.01.05"]
[EventType "k.o."]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. d4 {[%emt 0:07:26]} d5 {[%emt 0:00:00]} 2. Bg5 {[%emt 0:01:44]} h6 {[%emt 0:00:20]} 3. Bh4 {[%emt 0:00:32]} c6 {[%emt 0:00:14]} 4. c3 {[%emt 0:00:48]} Bf5 {[%emt 0:01:38]} 5. Nd2 {[%emt 0:00:43]} Nd7 {[%emt 0:01:14]} 6. e3 {[%emt 0:00:55]} Ngf6 {[%emt 0:01:03]} 7. Be2 {[%emt 0:00:41]} e6 {[%emt 0:07:18]} 8. f4 {[%emt 0:01:28]} Be7 {[%emt 0:02:09]} 9. Ngf3 {[%emt 0:06:08]} g5 {[%emt 0:36:49]} 10. fxg5 {[%emt 0:04:43]} Ne4 $11 {[%emt 0:03:12]} (10... Ng4 $15 11. Nf1 hxg5) 11. Nxe4 {[%emt 0:04:06]} dxe4 {[%emt 0:09:11]} 12. Nd2 {[%emt 0:00:56]} Bxg5 {[%emt 0:05:01]} 13. Bf2 {[%emt 0:00:12]} Bh4 {[%emt 0:02:54]} 14. O-O {[%emt 0:02:47]} Bxf2+ {[%emt 0:00:25]} 15. Rxf2 {[%emt 0:00:03]} Nf6 {[%emt 0:09:09]} 16. Qb3 {[%emt 0:04:57]} Qe7 {[%emt 0:00:45]} 17. Raf1 {[%emt 0:03:39]} O-O-O {[%emt 0:01:29]} 18. Kh1 {[%emt 0:00:34]} h5 {[%emt 0:00:34]} 19. c4 {[%emt 0:01:37]} Ng4 {[%emt 0:07:48]} 20. Bxg4 {[%emt 0:03:23]} hxg4 {[%emt 0:00:02]} 21. g3 {[%emt 0:00:27]} Bg6 {[%emt 0:04:20]} 22. Qc3 {[%emt 0:05:00]} Kb8 {[%emt 0:03:08]} 23. c5 {[%emt 0:04:12]} e5 {[%emt 0:00:28]} 24. Nc4 {[%emt 0:03:42]} exd4 {[%emt 0:00:19]} 25. exd4 {[%emt 0:00:08]} e3 {[%emt 0:00:35]} 26. Nxe3 {[%emt 0:06:12]} Qe4+ {[%emt 0:01:45]} 27. Kg1 {[%emt 0:00:05]} Qxd4 {[%emt 0:00:35]} 28. Qxd4 {[%emt 0:00:19]} Rxd4 {[%emt 0:00:01]} 29. Rf4 {[%emt 0:00:09]} Rd2 {[%emt 0:01:06]} 30. R1f2 {[%emt 0:02:20]} Rxf2 {[%emt 0:00:42]} 31. Rxf2 {[%emt 0:00:47]} Rh5 {[%emt 0:00:23]} 32. b4 {[%emt 0:00:35]} a5 {[%emt 0:00:14]} 33. a3 {[%emt 0:00:13]} axb4 {[%emt 0:00:01]} 34. axb4 {[%emt 0:00:01]} Re5 {[%emt 0:01:17]} 35. Nxg4 {[%emt 0:03:47]} Re4 {[%emt 0:00:39]} 36. Rf4 {[%emt 0:00:08]} Re1+ {[%emt 0:00:02]} 37. Kf2 {[%emt 0:00:13]} Rb1 {[%emt 0:00:27]} 38. Ne5 {[%emt 0:00:26]} Rb2+ {[%emt 0:00:08]} 39. Kg1 {[%emt 0:00:51]} Ka7 {[%emt 0:01:06]} 40. Nxf7 {[%emt 0:03:51]} Bxf7 {[%emt 0:00:36]} 41. Rxf7 {[%emt 0:00:02]} Rxb4 {[%emt 0:00:09]} 42. h4 {[%emt 0:03:55]} Rc4 {[%emt 0:00:03]} 43. Rf5 {[%emt 0:00:13]} b5 {[%emt 0:00:09]} 44. cxb6+ {[%emt 0:00:44]} Kxb6 {[%emt 0:00:02]} 45. h5 {[%emt 0:00:21]} Rg4 {[%emt 0:00:12]} 46. Kf2 {[%emt 0:00:07]} Kc7 {[%emt 0:01:44]} 47. Kf3 {[%emt 0:02:10]} Rg8 {[%emt 0:00:03]} 48. g4 {[%emt 0:00:38]} Kd7 {[%emt 0:00:19]} 49. g5 {[%emt 0:00:29]} Ke6 {[%emt 0:00:18]} 50. Kf4 {[%emt 0:00:10]} c5 {[%emt 0:01:37]} 51. Rxc5 {[%emt 0:00:41]} Rf8+ {[%emt 0:00:03]} 52. Kg4 {[%emt 0:00:07]} Rf1 {[%emt 0:00:09]} 53. h6 {[%emt 0:00:07]} Rg1+ {[%emt 0:00:19]} 54. Kh5 {[%emt 0:00:07]} Kf7 {[%emt 0:01:19]} 55. Rc7+ {[%emt 0:00:12]} Ke6 {[%emt 0:00:04]} 56. Kg6 {[%emt 0:00:14]} Kd5 {[%emt 0:02:23]} 1-0

[Event "86th BRA-ch 2019"]
[Site "Natal"]
[Date "2020.01.11"]
[Round "1.2"]
[White "Rocha, Vitor Firmo de Souza"]
[Black "Labussiere, Victor"]
[Result "1-0"]
[ECO "B63"]
[WhiteElo "2200"]
[BlackElo "2363"]
[Annotator "ChessBase"]
[PlyCount "91"]
[EventDate "2020.01.05"]
[EventType "k.o."]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. e4 {[%emt 0:00:00]} c5 {[%emt 0:00:31]} 2. Nf3 {[%emt 0:00:18]} Nc6 {[%emt 0:01:29]} 3. d4 {[%emt 0:00:13]} cxd4 {[%emt 0:00:13]} 4. Nxd4 {[%emt 0:00:05]} Nf6 {[%emt 0:01:46]} 5. Nc3 {[%emt 0:00:11]} d6 {[%emt 0:00:30]} 6. Bg5 {[%emt 0:00:12]} e6 {[%emt 0:01:23]} 7. Qd2 {[%emt 0:01:27]} Qb6 {[%emt 0:03:07]} 8. Nb3 {[%emt 0:00:21]} Be7 {[%emt 0:01:05]} 9. O-O-O {[%emt 0:02:34]} O-O {[%emt 0:01:35]} 10. h4 {[%emt 0:07:21]} Rd8 {[%emt 0:07:57]} 11. f4 {[%emt 0:00:25]} a6 {[%emt 0:02:31]} 12. Bxf6 {[%emt 0:01:25]} Bxf6 {[%emt 0:01:04]} 13. g4 {[%emt 0:00:10]} Qc7 {[%emt 0:05:03]} 14. Rh3 {[%emt 0:00:32]} b5 {[%emt 0:01:53]} 15. g5 {[%emt 0:00:30]} Be7 {[%emt 0:01:53]} 16. a3 {[%emt 0:03:47]} b4 {[%emt 0:04:01]} 17. axb4 {[%emt 0:00:12]} Nxb4 {[%emt 0:00:04]} 18. h5 {[%emt 0:01:56]} a5 {[%emt 0:21:44]} 19. Nb5 {[%emt 0:00:57]} Qb6 {[%emt 0:01:03]} 20. Kb1 {[%emt 0:04:55]} Ba6 {[%emt 0:08:05]} 21. N3d4 {[%emt 0:01:14]} Rdc8 {[%emt 0:08:43]} 22. c4 {[%emt 0:02:46]} Nc6 {[%emt 0:04:29]} 23. Nc2 {[%emt 0:02:43]} d5 {[%emt 0:02:58]} 24. exd5 {[%emt 0:00:54]} exd5 {[%emt 0:00:04]} 25. cxd5 {[%emt 0:04:31]} Bxb5 {[%emt 0:00:34]} 26. Bxb5 {[%emt 0:00:24]} Qxb5 {[%emt 0:00:04]} 27. dxc6 {[%emt 0:00:30]} Qxc6 {[%emt 0:02:33]} 28. Rc3 {[%emt 0:03:52]} Qb6 {[%emt 0:01:18]} 29. Rd3 {[%emt 0:03:38]} a4 {[%emt 0:02:00]} 30. Na3 {[%emt 0:01:22]} Rab8 {[%emt 0:00:57]} 31. Rc1 {[%emt 0:01:10]} Rxc1+ {[%emt 0:00:35]} 32. Qxc1 {[%emt 0:00:06]} Qa6 {[%emt 0:08:35]} 33. Qd1 {[%emt 0:03:08]} Qb7 {[%emt 0:01:34]} 34. Qe2 {[%emt 0:00:57]} Bxa3 {[%emt 0:02:48]} 35. Rxa3 {[%emt 0:00:10]} Qh1+ {[%emt 0:00:04]} 36. Kc2 {[%emt 0:01:19]} Qd5 {[%emt 0:01:33]} 37. Rd3 {[%emt 0:10:55]} Qc4+ {[%emt 0:00:51]} 38. Kb1 {[%emt 0:01:09]} Qxf4 {[%emt 0:00:05]} 39. g6 {[%emt 0:00:22]} hxg6 {[%emt 0:00:47]} 40. hxg6 {[%emt 0:00:06]} fxg6 {[%emt 0:00:51]} 41. Rf3 {[%emt 0:00:37]} Qg5 {[%emt 0:01:37]} 42. Qe6+ {[%emt 0:00:09]} Kh7 {[%emt 0:00:17]} 43. Rh3+ {[%emt 0:00:05]} Qh5 {[%emt 0:00:31]} 44. Rxh5+ {[%emt 0:00:09]} gxh5 {[%emt 0:00:05]} 45. Qf5+ {[%emt 0:00:05]} Kh6 {[%emt 0:00:30]} 46. Qf4+ {[%emt 0:00:30]} 1-0

[Event "86th BRA-ch 2019"]
[Site "Natal"]
[Date "2020.01.11"]
[Round "1.2"]
[White "De Oliveira, Victor Gabriel C."]
[Black "Fier, Alexandr"]
[Result "0-1"]
[ECO "B40"]
[WhiteElo "2146"]
[BlackElo "2528"]
[Annotator "TA"]
[PlyCount "104"]
[EventDate "2020.01.05"]
[EventType "k.o."]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,104,0,-3,0,-2,0,-6,18,5,15,16,11,-12,18,-16,0,-34,0,-37,-35,-45,-39,-50,-50,-41,-25,-50,-7,-47,-46,-47,-12,-31,-29,-47,-8,-8,0,0,-6,-17,-13,-48,0,-54,-37,-83,-35,-62,-45,-170,-145,-209,-123,-338,-100,-167,-54,-142,-136,-389,-112,-348,-137,-139,-147,-135,0,0,0,-66,-46,-66,-66,-66,-43,-89,-43,-117,-117,-115,-109,-418,-393,-567,-487,-550,-543,-449,-338]} 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Nxc6 bxc6 7. Bd3 d5 8. O-O Be7 9. Qe2 O-O {B40: Sicilian: 2...e6, Unusual lines} 10. Bf4 (10. b3 Bb7 11. Bb2 c5 12. Rad1 Qc7 13. Nb5 Qb6 14. e5 Nd7 15. c4 d4 16. f4 g6 17. Be4 Bxe4 18. Qxe4 {1-0 (61) Pichot,A (2544)-Tregubov,P (2585) Doha 2016}) 10... a5 11. b3 Nd7 $146 {The position is equal.} ({Predecessor:} 11... Bb7 12. e5 Nd7 13. Na4 Nb6 14. Nxb6 Qxb6 15. Qh5 g6 16. Qe2 Ba6 17. c4 {0-1 (43) Berend,E (2303)-Ushenina,A (2416) Riadh 2017}) 12. Na4 Nb6 13. Nxb6 Qxb6 14. c4 Bb7 15. Rab1 Rfe8 16. Qc2 h6 17. Be3 d4 18. Bd2 Bb4 19. f4 Bxd2 20. Qxd2 e5 21. f5 Qb4 22. Qe2 f6 23. Rf3 Re7 24. g4 c5 25. h4 Kf8 26. g5 hxg5 ({Don't go for} 26... fxg5 $2 27. hxg5 Kg8 28. f6 $18) 27. hxg5 Ke8 28. Rh3 Kd7 29. Rh7 Rf8 30. Kh2 (30. Qb2 $11) 30... Bc6 $15 31. Rg1 Qc3 32. Rg3 Qc1 33. Qh5 (33. Rg1 $15 Qc3 34. Bc2) 33... Qd2+ $1 $19 34. Kh3 (34. Kg1 $17) 34... Qe1 ({Better is} 34... Qxa2 $19 35. Qd1 Rb8) 35. Qf3 $2 (35. Kh2 $17 {was worth a try.}) 35... Kd6 $2 (35... fxg5 $1 $19 {Threatens to win with ...g6!} 36. Rxg5 g6 $1 {[%mdl 512]}) 36. Qg2 {[#]} (36. Kh2 $17) 36... Qd1 (36... g6 $1 $19 {[%mdl 512]} 37. fxg6 fxg5 38. Rxe7 Kxe7) 37. Qf3 (37. Kh2 $15) 37... Qc1 $1 $17 38. Qg2 $2 {[%mdl 8192] [#]} (38. Kh2 $17 {is a better defense.}) 38... a4 $2 (38... g6 $1 $19 {[%mdl 512] and Black stays clearly on top.} 39. Rh4 (39. fxg6 $2 Rxh7+ 40. gxh7 Rh8 $19) 39... gxf5) 39. bxa4 $2 {[#]} (39. Qg1 $17 Qf4 40. Rh4) 39... Bxa4 $2 (39... g6 $1 $19 40. Rh6 (40. fxg6 $2 Rxh7+ 41. gxh7 Rh8 $19) 40... gxf5) 40. gxf6 gxf6 41. Rgg7 {[#]} Qe3+ $40 {[%mdl 128] Black has some attack.} ({Black should play} 41... Rfe8 $1 $17 {aiming for ...Qe3+.} 42. Qg6 Qh1+ 43. Kg3 Qg1+ 44. Kh3 Qxg6 45. fxg6 Rxg7 46. Rxg7 Rh8+ 47. Kg4 Bd7+ 48. Kf3 Rh3+ 49. Ke2 Rh2+ 50. Kf3 Rh3+ 51. Kf2 Rh2+ 52. Kf3 Rh3+) 42. Kh2 $11 Rfe8 43. Rxe7 (43. Qg6 $11 Qf2+ 44. Kh1) 43... Rxe7 $15 44. Rxe7 Qh6+ 45. Qh3 Qf4+ 46. Kg1 Qg5+ 47. Kf2 (47. Qg2 $15 Qxg2+ 48. Kxg2 Kxe7 49. Kf2) 47... Kxe7 $17 48. Qh7+ Kd8 49. Qh3 $2 {[%mdl 8192]} (49. Qf7 $17 {is a better chance.}) 49... Kc7 $19 50. Qf3 (50. Qh7+ {was called for.} Bd7 51. Qh3) 50... Qc1 {Black is clearly winning.} 51. Qg3 Kb6 52. Be2 Ka5 {Played: Qc1-d2} 0-1

[Event "86th BRA-ch 2019"]
[Site "Natal"]
[Date "2020.01.11"]
[Round "1.3"]
[White "Macedo, Maximo Iack"]
[Black "Brito, Luismar"]
[Result "1-0"]
[ECO "B00"]
[WhiteElo "2324"]
[BlackElo "2227"]
[Annotator "ChessBase"]
[PlyCount "87"]
[EventDate "2020.01.05"]
[EventType "k.o."]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "1500+10"]

1. d4 {[%emt 0:00:00]} b6 {[%emt 0:00:00]} 2. e4 {[%emt 0:00:00]} Bb7 {[%emt 0:00:01]} 3. Bd3 {[%emt 0:00:02]} Nf6 {[%emt 0:00:02]} 4. Qe2 {[%emt 0:00:08]} Nc6 {[%emt 0:00:01]} 5. c3 {[%emt 0:00:15]} e5 {[%emt 0:00:01]} 6. d5 {[%emt 0:00:48]} Ne7 {[%emt 0:00:06]} 7. f3 {[%emt 0:03:37]} Ng6 {[%emt 0:00:16]} 8. g3 {[%emt 0:00:22]} c6 {[%emt 0:00:30]} 9. c4 {[%emt 0:00:15]} Bc5 {[%emt 0:00:10]} 10. Nc3 {[%emt 0:00:20]} Bd4 {[%emt 0:00:05]} 11. f4 {[%emt 0:00:41]} Qc7 {[%emt 0:02:55]} 12. Nf3 {[%emt 0:00:36]} Bxc3+ {[%emt 0:00:26]} 13. bxc3 {[%emt 0:00:02]} exf4 {[%emt 0:00:59]} 14. d6 {[%emt 0:00:28]} Qd8 {[%emt 0:01:38]} 15. e5 {[%emt 0:00:28]} O-O {[%emt 0:00:03]} 16. O-O {[%emt 0:02:42]} fxg3 {[%emt 0:00:06]} 17. exf6 {[%emt 0:00:51]} Qxf6 {[%emt 0:00:31]} 18. c5 {[%emt 0:03:57]} Rae8 {[%emt 0:00:59]} 19. Qb2 {[%emt 0:01:25]} Nf4 {[%emt 0:00:47]} 20. Bxf4 {[%emt 0:02:29]} Qxf4 {[%emt 0:00:01]} 21. Rad1 {[%emt 0:00:49]} Re3 {[%emt 0:01:07]} 22. hxg3 {[%emt 0:00:26]} Qg4 {[%emt 0:00:45]} 23. Qf2 {[%emt 0:00:20]} Rfe8 {[%emt 0:00:57]} 24. Rde1 {[%emt 0:00:08]} Rxe1 {[%emt 0:01:04]} 25. Rxe1 {[%emt 0:00:02]} Rxe1+ {[%emt 0:00:41]} 26. Qxe1 {[%emt 0:00:12]} g6 {[%emt 0:00:24]} 27. Qe8+ {[%emt 0:00:18]} Kg7 {[%emt 0:00:01]} 28. Qe5+ {[%emt 0:00:36]} Kg8 {[%emt 0:00:08]} 29. Ng5 {[%emt 0:00:37]} Qd1+ {[%emt 0:00:39]} 30. Bf1 {[%emt 0:00:26]} Qd5 {[%emt 0:00:16]} 31. Qxd5 cxd5 {[%emt 0:00:01]} 32. cxb6 {[%emt 0:00:15]} axb6 {[%emt 0:00:02]} 33. Bb5 {[%emt 0:00:07]} Bc8 {[%emt 0:00:12]} 34. Nh3 {[%emt 0:00:08]} f5 {[%emt 0:00:25]} 35. Nf4 {[%emt 0:00:02]} Kf7 {[%emt 0:00:08]} 36. Nxd5 {[%emt 0:00:02]} Ke6 {[%emt 0:00:10]} 37. Nxb6 {[%emt 0:00:03]} Bb7 {[%emt 0:00:01]} 38. Nxd7 {[%emt 0:00:19]} Kxd6 {[%emt 0:00:03]} 39. Nf8 {[%emt 0:00:05]} g5 {[%emt 0:01:29]} 40. Nxh7 {[%emt 0:00:07]} f4 {[%emt 0:00:05]} 41. Kf2 {[%emt 0:00:20]} fxg3+ {[%emt 0:00:20]} 42. Kxg3 {[%emt 0:00:01]} Kc5 {[%emt 0:00:00]} 43. Bd3 {[%emt 0:00:06]} Bd5 {[%emt 0:00:22]} 44. a3 {[%emt 0:00:04]} 1-0

[Event "86th BRA-ch 2019"]
[Site "Natal"]
[Date "2020.01.11"]
[Round "1.3"]
[White "Zallio, Luciano de Souza"]
[Black "Martins, Vinicius Tine"]
[Result "0-1"]
[ECO "D00"]
[WhiteElo "2245"]
[BlackElo "2309"]
[Annotator "TA"]
[PlyCount "81"]
[EventDate "2020.01.05"]
[EventType "k.o."]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,81,0,-7,-85,-73,-139,-85,-77,-84,-82,-82,-78,-62,-100,-4,-26,-7,-7,-11,-41,-8,-97,-104,-88,-89,-108,-97,-101,-84,-97,-61,-109,-105,-108,-101,-106,-80,-94,-95,-100,-102,-102,-95,-149,-149,-147,-140,-139,-102,-110,-102,-215,-175,-195,-184,-175,-175,-208,-204,-198,-198,-216,-210,-245,-247,-267,-249,-317,-184,-174,-166,-142,0,-83]} 1. d4 d5 2. Bg5 h6 3. Bh4 c6 4. c3 Bf5 5. Nd2 (5. Nf3 Nd7 6. e3 Ngf6 7. Bd3 Bxd3 8. Qxd3 e6 9. Nbd2 Be7 10. O-O O-O 11. c4 Re8 12. Rfd1 {½-½ (65) Le Roux,J (2607)-Sebag,M (2433) Orsay 2018}) 5... Nd7 6. f4 {D00: 1 d4 d5: Unusual lines} (6. Qb3 $11 {keeps the balance.}) 6... Ngf6 $17 7. h3 {[#]} (7. Ngf3 $142) 7... Qc7 (7... g5 $142 $1 {[%cal Rg5h4][%mdl 512]} 8. fxg5 hxg5) 8. e3 {[#]Black is better.} g5 $146 {[%mdl 512]} ({Predecessor:} 8... e6 9. Ngf3 Ne4 10. g4 Bh7 11. Nxe4 Bxe4 {1-0 (43) Gabriel,A (2090)-Galuska,J (2124) Czechia 2012}) 9. Bg3 (9. fxg5 hxg5) 9... g4 10. Ne2 e6 11. Bh2 Be7 (11... h5 $17 12. Ng3 Bg6) 12. Ng3 $11 h5 13. Nxf5 exf5 14. Bd3 gxh3 15. Bxf5 (15. gxh3 $11 Ne4 16. Qe2) 15... hxg2 $17 16. Rg1 {[#]} Ng4 $1 $36 {[%mdl 2560] ...Ndf6 is the strong threat. Black is in control.} 17. Bxg4 Bh4+ 18. Ke2 {Threatens to win with Bf5.} hxg4 19. Rxg2 Nf6 20. Kd3 Qd7 21. Kc2 Qf5+ 22. Kb3 O-O-O 23. Qc2 Ne4 24. Rag1 Be7 25. Nxe4 dxe4 {[%cal Rf5b5]} 26. Qe2 (26. a3 $142) 26... Qe6+ $1 ({But not} 26... Qa5 $6 27. Qxg4+ f5 28. Qe2 $14) 27. Kc2 {[#] f5 would now be nice for White.} f5 $1 ({Stronger than} 27... Qxa2 28. Qxg4+ Rd7 29. f5 $14) 28. Kb1 Rh3 29. Bg3 Rdh8 30. b4 (30. c4 $17 {was called for.}) 30... a6 31. Kb2 b5 32. a4 Kb7 33. Ra1 Bh4 34. Bxh4 R3xh4 35. Rd1 Qd5 36. c4 bxc4 ({Don't take} 36... Qxc4 37. Qxc4 bxc4 38. Kc3 $17) 37. Rc1 Rh3 38. Rc3 g3 (38... a5 $142 39. bxa5 g3 40. Rxc4 Rh2) 39. Rxc4 $19 Rh2 {( -> ...Rxg2)} 40. Rc2 R2h3 (40... Qd6 $17 41. Kc3 Rxg2 42. Qxg2 {[#]} a5 $1 {[%mdl 512]}) 41. Rc3 {Accuracy: White = 38%, Black = 66%.} (41. Rc5 $11 {remains equal.} Qf7 42. Ra5) 0-1

[Event "86th BRA-ch 2019"]
[Site "Natal"]
[Date "2020.01.11"]
[Round "1.3"]
[White "Rocha, Vitor Firmo de Souza"]
[Black "Labussiere, Victor"]
[Result "0-1"]
[ECO "B63"]
[WhiteElo "2200"]
[BlackElo "2363"]
[Annotator "TA"]
[PlyCount "106"]
[EventDate "2020.01.05"]
[EventType "k.o."]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,106,46,46,52,58,71,50,37,45,47,59,50,63,0,0,0,0,0,22,0,0,0,-10,-22,-20,-7,0,0,0,0,0,-24,35,30,19,26,58,22,136,146,155,154,178,103,109,31,66,0,0,0,0,0,0,-35,-30,-29,-21,-119,-115,-174,-163,-124,-152,-338,-343,-554,-577,-716,-650,-1375,-1383,-1331,-1268,-1529,-1530,-1659,-1597,-6494,-5911,-29973,-29973,-29952,-10152,-29986,-29986,-29986,-29987,-29989,-29990,-29991,-29992]} 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bg5 e6 7. Qd2 Qb6 8. Nb3 Be7 9. O-O-O O-O 10. Kb1 {B63: Sicilian: Richter-Rauzer: 7...Be7 and unusual Black 7th moves} Rd8 (10... a6 11. h4 Qa7 12. f3 b5 13. g4 Ne5 14. Qg2 b4 15. Ne2 a5 16. Nbd4 a4 17. f4 Bb7 18. Bxf6 Bxf6 19. fxe5 dxe5 {½-½ (47) Djukic,N (2548)-Kozul,Z (2611) Podgorica 2018}) 11. h4 d5 12. exd5 {White is slightly better.} Nxd5 13. Nxd5 Rxd5 14. Bd3 Qc7 $146 ({Predecessor:} 14... a5 15. c4 Rd7 16. Bxe7 Rxe7 17. c5 Qc7 {1-0 (58) Wachinger,N (2297)-Skurniak,S (1997) Mumbai 2019}) 15. c4 ({White should play} 15. Bf4 $14 Qd8 16. Qe2) 15... Rd8 $11 16. Bxe7 Qxe7 17. Qg5 {And now Qxe7 would win.} f6 18. Qh5 g6 19. Qe2 e5 20. h5 {[#]} Rxd3 $1 {[%mdl 576] Remove Defender} 21. Rxd3 {Black must now prevent hxg6.} Bf5 22. g4 ({Of course not} 22. hxg6 Qd6 $17) 22... Bxd3+ 23. Qxd3 Rd8 24. Qe4 Kg7 (24... g5 $11) 25. hxg6 $14 hxg6 26. Qe3 {Qh6+ is the strong threat.} Rg8 27. Nc5 Nd4 (27... g5 $1 $11) 28. Ne4 $1 $16 g5 29. Qh3 Kf7 30. Qh5+ (30. c5 $18) 30... Ke6 31. Nc3 (31. Qh6 $16) 31... Qg7 32. Qh7 ({White should try} 32. b3 $1 $14) 32... Rh8 $1 $36 {[%mdl 2048] Black has the initiative.} 33. Qe4 $1 {[%cal Re4d5] Strongly threatening Qd5+.} (33. Qxg7 $2 {gets mated.} Rxh1+ 34. Nd1 Rxd1#) (33. Qxh8 {leads to mate.} Qg6+ 34. Ne4 Qxe4+ 35. Ka1 Nc2+ 36. Kb1 Na3+ $1 {[%mdl 512]} 37. Ka1 Qb1+ $1 {[%mdl 512]} 38. Rxb1 Nc2#) 33... Rxh1+ 34. Qxh1 {aiming for Qd5+.} Qg6+ 35. Qe4 (35. Ka1 {keeps more tension.} Nc2+ 36. Kb1 Nd4+) 35... Qxe4+ 36. Nxe4 $15 {[%mdl 4096] Endgame KN-KN} b6 37. Ng3 {[#]} (37. Kc1 $11 {keeps the balance.}) 37... Nf3 $1 $17 38. Kc2 (38. Nf5 $17 {was called for.}) 38... Nh2 $19 39. Ne4 Nxg4 40. Kc3 $2 (40. Kd3 $17) 40... Kf5 41. Kd3 $2 (41. Nd6+ Kf4 42. b4 Nxf2 43. c5) 41... Kf4 42. b4 f5 43. Nd2 {and the idea c5 leaves White hopeful.} Nxf2+ 44. Ke2 Ne4 45. Nb3 Nc3+ 46. Kf2 Nxa2 47. b5 e4 48. c5 bxc5 49. Nxc5 g4 50. Nd7 Nc3 {Black mates.} 51. b6 axb6 52. Nxb6 e3+ 53. Ke1 g3 {Accuracy: White = 32%, Black = 63%.} 0-1

[Event "86th BRA-ch 2019"]
[Site "Natal"]
[Date "2020.01.11"]
[Round "1.3"]
[White "Pinto, Carlos Henrique Lope"]
[Black "Lima, Darcy"]
[Result "1-0"]
[ECO "D41"]
[WhiteElo "2135"]
[BlackElo "2534"]
[Annotator "TA"]
[PlyCount "63"]
[EventDate "2020.01.05"]
[EventType "k.o."]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 22,63,44,0,0,0,0,0,4,0,116,119,297,300,421,404,405,259,338,347,331,347,301,315,470,503,530,509,746,751,716,568,775,726,1319,1166,1618,1275,1226,1235,1198,966,29990,29991]} 1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. g3 d5 5. Bg2 Nc6 6. O-O Be7 7. Nc3 O-O 8. cxd5 Nxd5 9. e4 Nb6 10. d5 exd5 11. exd5 Nb4 12. Ne5 Bf5 {D41: Queen's Gambit Declined: Semi-Tarrasch with 5 cxd5} 13. a3 Nc2 14. Ra2 {Hoping for g4.} Nd4 {[#]The position is equal.} 15. b4 $1 {[%mdl 512] Black must now prevent Be3.} Bf6 (15... Rc8 $1 $11) (15... cxb4 16. axb4) 16. f4 $16 Qd6 $146 (16... Qc8 $16 {was worth a try.}) ({Predecessor:} 16... Qc7 17. g4 Bg6 18. Nxg6 hxg6 19. Ne4 Nxd5 20. bxc5 {1-0 (38) Ornstein,A (2435)-Schneider,L (2455) Borlange 1992}) 17. g4 $18 Bc2 (17... Nxd5 {might work better.} 18. Nxd5 Be6) 18. Rxc2 Nxc2 19. Qxc2 cxb4 {[#] Threatens to win with ...Qc5+.} 20. Ne4 Qd8 21. Nxf6+ Qxf6 22. axb4 Rfd8 (22... Rac8 $142 23. Qb3 Rxc1 {[%mdl 64] Remove Defender} 24. Rxc1 Qxf4) 23. g5 Qe7 24. Be4 g6 25. Ng4 Qxb4 26. Nf6+ Kh8 27. Bb2 Nc4 28. Bc3 Qe7 29. Ng4+ Kg8 30. Qd3 Rac8 31. Nf6+ Kh8 32. Qh3 {Accuracy: White = 86%, Black = 35%.} 1-0

[Event "86th BRA-ch 2019"]
[Site "Natal"]
[Date "2020.01.11"]
[Round "1.4"]
[White "Lima, Darcy"]
[Black "Pinto, Carlos Henrique Lope"]
[Result "1-0"]
[ECO "B70"]
[WhiteElo "2534"]
[BlackElo "2135"]
[Annotator "TA"]
[PlyCount "77"]
[EventDate "2020.01.05"]
[EventType "k.o."]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,77,20,42,59,51,59,49,55,55,66,65,68,51,103,59,150,135,135,132,133,139,127,81,132,85,158,188,249,133,158,171,381,375,517,488,802,493,527,430,441,408,416,394,437,385,473,464,463,463,550,487,729,735,634,548,521,504,595,603,1171,1082,5612,5610]} 1. d4 Nf6 2. g3 g6 3. Bg2 Bg7 4. e4 d6 5. Ne2 O-O 6. Nbc3 Nbd7 7. O-O c5 8. h3 cxd4 9. Nxd4 a6 {B70: Sicilian Dragon: 6 g3 and 6 Be2 (without a later Be3)} 10. Be3 Ne5 11. b3 (11. Qe2 Bd7 12. Rad1 Qc8 {1-0 (48) Jumabayev,R (2602)-Carlsson,P (2463) St Petersburg 2018}) 11... Bd7 {White is slightly better.} 12. Nde2 (12. Nd5 {seems wilder.} Nc6 13. Ne2 a5 14. Qd2 a4 15. Rac1) 12... Rc8 13. Nd5 Nxd5 14. exd5 f5 ({Black should try} 14... g5 $14) 15. Nd4 $146 ({Predecessor:} 15. c4 Rf7 16. Rc1 b6 17. f4 Nxc4 18. bxc4 b5 19. cxb5 Bxb5 20. Rxc8 Qxc8 {1-0 (58) Klabenes,P-Sykora,T (1546) Hrdonov 2013}) 15... h6 {[#]} ({Better is} 15... Qa5 $14) 16. f4 $1 $16 Nf7 17. Ne6 Bxe6 18. dxe6 Nh8 19. Bxb7 Rc3 (19... Bxa1 $142 20. Bxc8 (20. Qxa1 Rxc2 21. Rf2 Qc7 $15) 20... Qxc8 21. Qxa1 Qxe6) 20. Bf2 Qc7 (20... Rc7 $142) 21. Bxa6 g5 (21... Rxc2 {keeps fighting.} 22. Rc1 Rxc1 23. Qxc1 Qa5) 22. Bd3 (22. fxg5 $18 hxg5 23. Qh5) 22... gxf4 23. gxf4 Rf6 $2 (23... Ng6) 24. Kh2 $18 Ng6 25. Bd4 d5 (25... Nh4 $142) 26. Qd2 Rxd3 27. cxd3 Rxe6 28. Bxg7 Kxg7 29. Rac1 Qd6 30. Rf2 d4 {and the idea ...Re3 leaves Black hopeful.} 31. Rg1 {White is clearly winning.} Kh7 32. Rg3 Nh4 33. Qd1 Re3 {[#]} (33... Rf6 $142 34. a4 Qc7) 34. Qh5 $1 {White threatens Qf7+ and mate.} Qf6 35. Rxe3 dxe3 36. Re2 Ng6 37. Qf3 e5 38. Qxe3 Nxf4 39. Qxe5 {Accuracy: White = 70%, Black = 13%.} 1-0

[Event "86th BRA-ch 2019"]
[Site "Natal"]
[Date "2020.01.11"]
[Round "1.4"]
[White "Labussiere, Victor"]
[Black "Rocha, Vitor Firmo de Souza"]
[Result "1-0"]
[ECO "A13"]
[WhiteElo "2363"]
[BlackElo "2200"]
[Annotator "TA"]
[PlyCount "97"]
[EventDate "2020.01.05"]
[EventType "k.o."]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,97,-37,-8,-3,25,23,46,45,54,42,58,70,61,2,11,10,10,7,12,10,22,31,77,75,96,49,148,37,37,38,48,34,63,50,136,152,375,373,362,60,54,29,239,231,416,416,395,375,258,114,110,101,118,117,91,0,0,0,67,68,90,59,192,177,341,316,552,539,1096,12832,12836,12836,12837,12837,12835,12835,12843,529,179,1900,12837,12838,12843,12843,29990,29991,29991,29992,29994,12847]} 1. c4 e6 2. Nf3 Nf6 3. g3 d5 4. b3 d4 5. Bg2 (5. e3 Nc6 6. exd4 Nxd4 7. Bg2 Bc5 8. Bb2 e5 9. b4 Nxf3+ 10. Bxf3 Bd4 11. Qb3 Bh3 12. Bxb7 O-O {0-1 (32) Piorun,K (2640)-Gajewski,G (2630) Germany 2018}) 5... Nc6 6. O-O {A13: English Opening: 1...e6} a5 7. e3 Be7 $146 ({Predecessor:} 7... Bc5 8. Bb2 O-O 9. a3 e5 10. exd4 Bxd4 11. Bxd4 exd4 12. d3 Bf5 {½-½ (34) Thiele,M (2113)-Wegener,O (2312) Hamburg 2001}) 8. exd4 {White is slightly better.} Nxd4 9. Bb2 c5 10. Nxd4 cxd4 11. Ba3 (11. Qe1 $14) 11... O-O $11 12. Bxe7 Qxe7 13. d3 Nd7 14. Nd2 Nc5 15. Ne4 e5 16. Nxc5 Qxc5 17. f4 Ra6 (17... exf4 $14 18. Rxf4 Rb8) 18. fxe5 ({Better is} 18. Qh5 $16) 18... Re6 $14 19. Qf3 Rxe5 20. Rae1 Re3 21. Qf4 Rxd3 (21... h6 $14) 22. Re5 $1 $36 {[%cal Re5c5][%mdl 2048] Keeping Black busy.} Qa3 $2 {[#]} (22... Qb4 $16 {was called for.}) 23. Bd5 $1 $18 {[%mdl 512]} Re3 24. Rxe3 $2 ({White must play} 24. c5 $1 $18 h6 25. Bxf7+ Kh8 26. Rxe3 dxe3 27. Qd6 (27. Qxe3 Qb2 $16) 27... Rxf7 28. Rxf7 Qc1+ 29. Rf1) 24... dxe3 $14 25. Qxe3 {Rxf7! is the strong threat.} h6 $2 (25... Bd7 $11 {and Black is okay.}) 26. Rxf7 $1 $18 {[%mdl 64] Qf2 would kill now. Decoy} Rxf7 $2 (26... Kh8 27. Rxf8+ Qxf8) 27. Qe8+ {[%mdl 64] Double Attack, Pin} Kh7 {( -> ...Qc1+)} 28. Qxf7 {White threatens Be4+ and mate.} Qc1+ 29. Qf1 (29. Kf2 $1 $18 {is the precise move to win.} Qc2+ 30. Ke3 Qc1+ 31. Ke2 Qc2+ 32. Ke3 Qc3+ 33. Kf4 Qc1+ 34. Ke4 Qe1+ 35. Kd4 Qd2+ 36. Ke5 Qg5+ 37. Ke4) 29... Qe3+ 30. Qf2 Qe5 31. h4 b5 32. Bf3 ({White should play} 32. Kh2 $16) 32... bxc4 $11 33. bxc4 Be6 (33... a4 $1 $11) 34. Kg2 $14 Qf5 35. c5 Qb1 ({Black should try} 35... Bd5 $14) 36. a3 Bf5 $2 (36... Qd3 37. c6 Bd5 38. Bxd5 Qxd5+ 39. Qf3 Qa2+ 40. Kh1 Qb1+ 41. Kh2 Qc2+ 42. Kh3 Qc4) 37. c6 $18 Qc1 $2 (37... Be4 {is a better defense.} 38. Kh3 Bxf3 39. Qxf3 Qc2) 38. Qe2 Qxa3 39. Be4 Qc5 40. Bxf5+ Qxf5 {[%mdl 4096] Endgame KQ-KQ} 41. Qc4 Qc8 42. c7 a4 43. Qe4+ (43. Qd3+ $142 g6 44. Qd8) 43... Kh8 44. Qc6 $2 ({Not} 44. Qxa4 Qxc7 45. Qe4 Kg8 $11) (44. Qe7 Kh7 45. Qe4+ Kh8 46. Qc6 (46. Qxa4 Qxc7 47. Kh3 Qc8+ 48. Kh2 Qe6 $11)) 44... a3 45. Qb6 $1 {[%cal Rb6b8]} Qa8+ 46. Kh2 {Threatening mate with Qb8+.} Qe4 47. c8=Q+ {White mates.} Kh7 48. Qf2 a2 {[#]} 49. Qff5+ {Accuracy: White = 62%, Black = 13%.} (49. Qf7 $142 $1 Qh1+ {[%mdl 64] Decoy} 50. Kxh1 a1=R+ 51. Kg2 Ra2+ 52. Qxa2 Kg6 53. Qe8+ Kh7 54. Qag8#) 1-0

[Event "86th BRA-ch 2019"]
[Site "Natal"]
[Date "2020.01.11"]
[Round "1.4"]
[White "Martins, Vinicius Tine"]
[Black "Zallio, Luciano de Souza"]
[Result "1/2-1/2"]
[ECO "B13"]
[WhiteElo "2309"]
[BlackElo "2245"]
[Annotator "TA"]
[PlyCount "77"]
[EventDate "2020.01.05"]
[EventType "k.o."]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,77,3,0,-10,14,0,0,0,16,0,1,0,16,0,19,18,18,17,18,0,24,0,0,0,0,0,39,36,397,384,422,398,434,420,567,423,557,510,481,376,430,352,433,338,333,312,441,414,408,401,551,78,78,78,78,48,48,48,48,33,48,48,48,48,58,58]} 1. Nf3 d5 2. e3 c5 3. d4 Nf6 4. c4 cxd4 5. exd4 Nc6 6. Nc3 Bg4 7. cxd5 Nxd5 8. Bc4 {B13: Caro-Kann: Exchange Variation and Panov-Botvinnik Attack} (8. Qb3 Bxf3 9. gxf3 e6 10. Qxb7 Nxd4 11. Bb5+ Nxb5 12. Qc6+ Ke7 13. Qxb5 Qd7 14. a4 a6 15. Nxd5+ Qxd5 16. Qe2 Kf6 17. Bd2 Bd6 18. Rd1 Ke7 19. Bc3 Qf5 20. Qe4 Qxe4+ 21. fxe4 {½-½ (21) Petrov,N (2585)-Shirov,A (2684) Arica 2019}) 8... Nxc3 9. bxc3 {Strongly threatening Qb3.} e6 $1 10. O-O {The position is equal.} Be7 11. h3 Bh5 12. d5 $146 ({Predecessor:} 12. Re1 O-O 13. Qd3 Rc8 14. d5 Bg6 15. Qd2 exd5 16. Qxd5 Qxd5 17. Bxd5 {0-1 (89) Suntharalingam,J-Eigenert,C Espoo 2006}) 12... exd5 13. Qxd5 Qxd5 14. Bxd5 {Black must now prevent Re1.} O-O 15. Rb1 $36 {[%mdl 2048] White is pushing.} Rad8 16. c4 Rd7 17. Bxc6 bxc6 18. Ne5 Rc7 19. Bf4 {aiming for g4.} Rcc8 20. Rb7 Bc5 $2 {[%mdl 8192]} ({Black should play} 20... Rfe8 $14) 21. Nd7 $18 {[%mdl 64] [#] Double Attack} Bd4 22. Nxf8 Rxf8 23. Be3 Be5 24. Bxa7 f6 25. f4 Bc3 26. Kh2 Be2 27. Rf2 Bd1 28. Rb8 Rxb8 29. Bxb8 {[%mdl 4096] Endgame KRB-KB} c5 (29... Kf7 {is a better defense.} 30. Ba7 h5) 30. Ba7 Bd4 31. Rd2 Bh5 {[#]} 32. Rxd4 $2 (32. Bxc5 $1 $18 Bxc5 33. Rd5) 32... cxd4 $16 33. Bxd4 $18 {KB-KB} Bf7 34. c5 {[%cal Bc4c5,Bc5c6,Bc6c7][%mdl 32]} Bxa2 {White is slightly better.} 35. c6 Kf7 36. f5 {c7 is the strong threat.} Bd5 37. c7 Bb7 38. g4 Bc8 39. Kg3 {Accuracy: White = 45%, Black = 29%.} 1/2-1/2

[Event "86th BRA-ch 2019"]
[Site "Natal"]
[Date "2020.01.11"]
[Round "1.4"]
[White "Brito, Luismar"]
[Black "Macedo, Maximo Iack"]
[Result "0-1"]
[ECO "D00"]
[WhiteElo "2227"]
[BlackElo "2324"]
[Annotator "TA"]
[PlyCount "30"]
[EventDate "2020.01.05"]
[EventType "k.o."]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,48,-23,40,-28,-22,-29,-13,-63,-53,-83,-77,-71,-67,-62,-20,-17,-14,-74,-72,-81,-47,-133,-127,-120,-115,-132,-113,-156,-156,-161,-163,-185,-198,-459,-448,-912,-910,-1161,-943,-1015,-848]} 1. Nc3 d5 2. d4 Nf6 3. Bf4 a6 4. Qd3 (4. e3 e6 5. Nf3 c5 6. Bd3 Nbd7 7. h3 b5 8. a3 Bb7 9. O-O Be7 10. dxc5 Nxc5 11. Ne2 O-O {½-½ (66) Lagarde,M (2657)-Fressinet,L (2633) Montagne 2019}) 4... e6 5. e4 Bb4 (5... c5 $11) 6. f3 {D00: 1 d4 d5: Unusual lines} ({White should try} 6. e5 $14 Ne4 7. a3 Bxc3+ 8. bxc3) 6... c5 $146 {aiming for ...dxe4.} ({Predecessor:} 6... O-O 7. O-O-O Nc6 8. e5 Nh5 9. Nh3 Nxf4 10. Nxf4 f6 11. exf6 Qxf6 {0-1 (24) Mazuela,J (800)-Limberger,J (800) IECG email 1999}) 7. a3 Qa5 8. Nge2 {The position is equal.} (8. exd5 {with more complications.} Nxd5 9. Bd2 Bxc3 10. Bxc3 Nxc3 11. Qxc3 Qxc3+ 12. bxc3 cxd4 13. cxd4 Nc6 14. c3) 8... cxd4 9. Nxd4 dxe4 10. fxe4 {[#]} Bxc3+ $1 11. bxc3 Nbd7 12. Nb3 Qa4 13. c4 {[#]} (13. Qd4 $11 Qxd4 14. cxd4) 13... e5 $1 $17 {[%cal Re5f4]} 14. Be3 Qc6 15. Nd2 (15. Be2 $15) 15... O-O {Played: Nd7-c5} 0-1

[Event "86th BRA-ch 2019"]
[Site "Natal"]
[Date "2020.01.11"]
[Round "1.5"]
[White "Lima, Darcy"]
[Black "Pinto, Carlos Henrique Lope"]
[Result "1-0"]
[ECO "A81"]
[WhiteElo "2534"]
[BlackElo "2135"]
[Annotator "TA"]
[PlyCount "57"]
[EventDate "2020.01.05"]
[EventType "k.o."]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,61,43,50,42,32,62,61,70,62,91,52,64,37,64,-5,0,-66,-73,-71,-67,-71,-67,-79,-64,-67,-33,-45,-37,-43,21,15,6,0,18,-17,14,14,14,14,14,11,28,-312,-289,-476,-56,-88]} 1. d4 f5 2. g3 g6 3. Bg2 Bg7 4. Nf3 Nf6 5. O-O O-O 6. b3 d6 7. Bb2 c6 8. Nbd2 Na6 {[%cal Bb8a6,Ba6c7,Bc7e6,Be6f4][%mdl 32]} 9. Re1 Ne4 {A81: Dutch Defence: 2 g3} 10. c4 (10. e3 Nc7 11. c4 {½-½ (11) Prohaszka,P (2512)-Nikolic,P (2623) Budva 2009}) 10... Nc7 11. Qc2 Nxd2 {White is slightly better.} 12. Qxd2 Qe8 $146 ({Predecessor:} 12... Ne8 13. e4 fxe4 14. Rxe4 Bf5 15. Ree1 Nf6 16. Nh4 Bd7 17. d5 c5 18. Nf3 {1-0 (56) Gouanelle,F (2191)-Godefroy,P (1859) Fouesnant 2009}) 13. e4 f4 14. gxf4 Qf7 15. e5 (15. f5 $14) 15... Ne6 $11 16. Ng5 (16. Bc1 $11) 16... Qxf4 $15 17. Qxf4 Nxf4 18. exd6 exd6 19. Bf1 Bf5 20. Rad1 h6 21. Ne4 d5 22. Nd6 Bh3 ({Better is} 22... Bg4 $15 23. Rd2 b6) 23. Nxb7 Rf5 24. Re3 Bxf1 25. Rxf1 Rg5+ 26. Kh1 dxc4 27. bxc4 Rb8 28. Rb3 Ne2 29. Rd1 {Played: Nb7-a5} 1-0

[Event "86th BRA-ch 2019"]
[Site "Natal"]
[Date "2020.01.11"]
[Round "1.6"]
[White "Pinto, Carlos Henrique Lope"]
[Black "Lima, Darcy"]
[Result "1/2-1/2"]
[ECO "D41"]
[WhiteElo "2135"]
[BlackElo "2534"]
[Annotator "TA"]
[PlyCount "76"]
[EventDate "2020.01.05"]
[EventType "k.o."]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 22,76,39,0,0,-22,101,43,34,42,37,0,50,-55,45,39,44,52,60,77,61,63,85,75,126,108,138,85,110,72,75,65,131,28,41,-55,0,-128,-28,-386,-222,-380,-375,-360,-353,-444,-449,-432,-426,-434,0,-381,0,-446,0,-347,0]} 1. d4 (1. c4 c5 2. Nf3 Nf6 3. g3 Nc6 4. Bg2 d5 5. cxd5 Nxd5 6. O-O e6 7. Nc3 Be7 8. d4 {½-½ (12) Clement Gomez,J (2339)-Franco Ocampos,Z (2530) La Roda 2006}) 1... Nf6 2. c4 e6 3. Nf3 c5 4. g3 d5 5. Bg2 Nc6 6. O-O Be7 7. Nc3 O-O 8. cxd5 Nxd5 9. e4 Nb6 10. d5 exd5 11. exd5 Nb4 12. Ne5 Bf5 {D41: Queen's Gambit Declined: Semi-Tarrasch with 5 cxd5} 13. a3 Na6 (13... Nc2 $11 {keeps the balance.} 14. Ra2 Nd4) 14. Be3 $146 (14. Qf3 $16 Bc2 15. Re1) ({Predecessor:} 14. Bf4 Bd6 15. Nb5 Bxe5 16. Bxe5 Qe8 17. Qe2 f6 18. d6 c4 19. Bxb7 Bd3 20. Qg4 h5 21. d7 Qxe5 22. Qd4 Qxd4 23. Nxd4 Bxf1 24. Rxf1 Nc5 25. Bxa8 Rxa8 {0-1 (25) Andrianov,N (2405)-Zaichik,G Jurmala 1983}) 14... Bd6 $14 {White is slightly better.} 15. f4 f6 16. Nd3 Nc4 17. Bc1 (17. Bf2 $1 $14) 17... Re8 (17... Na5 $1 $15) 18. g4 $36 {[%mdl 2048] White is more active.} Bg6 19. f5 Bf7 20. Nf4 Bxf4 21. Bxf4 Nd6 22. Qd3 Qd7 (22... c4 $142 23. Qd4 h5) 23. Rad1 $16 Nc7 24. a4 (24. g5 $142 {aiming for g6.} fxg5 25. Bxg5) 24... b6 25. Qg3 Rad8 26. h4 h5 (26... Re7 $14) 27. Bxd6 (27. g5 $16 Nxf5 28. Qh2) 27... Qxd6 $11 28. Rf4 (28. Qxd6 $14 Rxd6 29. g5) 28... Qe5 (28... hxg4 $15 29. Rxg4 Qxg3 30. Rxg3 Bh5) 29. Kh2 (29. gxh5 $11 Kf8 30. Rd2) 29... hxg4 ({Reject} 29... Bxd5 $6 30. gxh5 Kh8 31. Nxd5 $11) ({Black should try} 29... Nxd5 $17 30. Bxd5 Rxd5 31. Rxd5 Bxd5 32. gxh5 Kh8 33. Nxd5 Qxd5) 30. Qxg4 $2 {[%mdl 8192] [#]} (30. Rxg4 $11 {and White stays safe.} Qxg3+ 31. Rxg3) 30... Bxd5 (30... Bh5 $142 $1 {[%mdl 512]} 31. Re1 (31. Qxh5 Qxf4+) 31... Bxg4 32. Rxe5 Rxe5 33. Rxg4 Rxf5) 31. Nxd5 $2 (31. Rg1 Re7 32. Kh1) 31... Nxd5 $19 32. Bxd5+ Rxd5 33. Rg1 {[%csl Gg1][%cal Rg4g7]} Rd2+ 34. Kh3 {[%csl Gg1][%cal Rg4g7] [#]} Rd3+ 35. Kh2 {[%csl Gg1][%cal Rg4g7]} Rd2+ 36. Kh3 $1 {[%csl Gg1][%cal Rg4g7]} Rd3+ 37. Kh2 $1 {[%csl Gg1][%cal Rg4g7]} Rd2+ 38. Kh3 $1 {[%csl Gg1][%cal Rg4g7]} Rd3+ $2 {Accuracy: White = 31%, Black = 26%.} ({Better is} 38... Re7 $19 39. b3 Qd5) 1/2-1/2

[Event "86th BRA-ch 2019"]
[Site "Natal"]
[Date "2020.01.12"]
[Round "2.1"]
[White "Supi, Luis Paulo"]
[Black "Martins, Vinicius Tine"]
[Result "1-0"]
[ECO "C50"]
[WhiteElo "2577"]
[BlackElo "2309"]
[Annotator "TA"]
[PlyCount "43"]
[EventDate "2020.01.05"]
[EventType "k.o."]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,43,26,23,18,20,22,18,23,16,25,0,25,24,27,16,32,28,39,33,62,63,79,35,36,37,32,34,70,31,33,27,100,80]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. O-O Nf6 5. d3 O-O 6. Bg5 h6 7. Bh4 Be7 {C50: Hungarian Defence and Giuoco Pianissimo} 8. Bg3 d6 9. a4 Na5 {The position is equal.} (9... Be6 10. Nbd2 Bxc4 11. Nxc4 g6 12. c3 Nh5 13. Qb3 Rb8 14. Rfe1 Bf6 15. Rad1 {½-½ (40) Adhiban,B (2668)-So,W (2776) Douglas 2018}) 10. Ba2 c5 11. h3 Be6 $146 ({Predecessor:} 11... Nc6 12. c3 Bd7 13. Na3 Qc7 14. Re1 Rae8 15. Rc1 {½-½ (46) Bruedigam,M (2394)-Jahncke,G (2359) Germany 2019}) 12. Nbd2 Nc6 13. c3 Qd7 14. Nc4 Nh7 15. Ne3 Bg5 16. Nxg5 Nxg5 17. f4 exf4 18. Bxf4 Bxa2 19. Rxa2 Ne7 20. Qb3 Ne6 21. Bg3 Nc7 (21... Rad8 $11 {keeps the balance.}) 22. Raa1 {Accuracy: White = 64%, Black = 45%.} 1-0

[Event "86th BRA-ch 2019"]
[Site "Natal"]
[Date "2020.01.12"]
[Round "2.1"]
[White "Lima, Darcy"]
[Black "Labussiere, Victor"]
[Result "1-0"]
[ECO "B38"]
[WhiteElo "2534"]
[BlackElo "2363"]
[Annotator "TA"]
[PlyCount "129"]
[EventDate "2020.01.05"]
[EventType "k.o."]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 29,129,51,58,36,52,10,65,46,71,68,83,54,60,60,73,44,87,84,105,79,104,112,208,139,291,291,276,275,308,275,294,268,286,286,301,279,330,330,366,363,341,352,349,337,320,292,345,331,345,343,345,314,331,325,336,304,312,279,464,450,498,465,510,509,508,489,548,520,620,615,608,607,592,539,648,616,746,716,697,697,2503,5289,12838,12835,12839,12839,12844,12844,12845,12843,12843,12843,12844,12844,12845,12845,12849,12845,12851,27999,12851,27999]} 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 c5 7. O-O cxd4 8. Nxd4 Nc6 9. Be3 Bd7 10. Qd2 Nxd4 11. Bxd4 Bc6 12. f3 a5 13. b3 Nd7 14. Be3 Nc5 15. Rab1 e6 16. Bd1 {B38: Sicilian: Maroczy Bind with 5...Bg7 and 7...0-0} (16. a3 Be5 17. b4 axb4 18. axb4 Ra3 19. bxc5 Rxc3 20. f4 Bg7 21. e5 dxe5 22. Qxc3 exf4 23. Qd2 Qg5 {0-1 (43) Bu,X (2730)-Savchenko,B (2566) Riadh 2017}) 16... Qe7 17. Re1 $146 ({Predecessor:} 17. Bc2 Rfd8 18. Rfd1 Be5 19. a3 Qh4 20. h3 Qe7 21. Bg5 Bf6 22. Bxf6 Qxf6 23. f4 b6 {1-0 (48) Harsha,B (2451)-Gomes,M (2328) New Delhi 2018}) 17... Rad8 (17... f5 $11) 18. Bc2 {White is slightly better.} b6 19. a3 Qc7 20. b4 axb4 21. axb4 Nd7 22. Bb3 Be5 23. Rbc1 Qb8 24. Bg5 Bf6 25. Red1 b5 (25... Bxg5 $16 {keeps fighting.} 26. Qxg5 Kg7) 26. cxb5 ({Don't do} 26. Nxb5 $6 Bxb5 27. cxb5 Qxb5 $14) 26... Bxb5 $2 (26... Bxg5 $16 27. Qxg5 Ba8) 27. Bxf6 $18 Nxf6 {[#]} 28. Qg5 $1 {[%csl LRb5,LRf6][%mdl 64] Double Attack} Ba6 29. Qxf6 Qxb4 30. Bc2 Rc8 31. Bd3 Bb7 32. Ne2 Ba8 33. Qd4 Qb8 34. Rxc8 Rxc8 35. Rb1 Qc7 36. Rc1 Bc6 37. Bb5 Qb7 38. Bxc6 Rxc6 39. Rxc6 Qxc6 40. Nc3 Qa6 41. Kf2 Qa5 42. Ne2 Qc7 43. g4 d5 $2 (43... h6 {was called for.} 44. Kf1 Kh7) 44. e5 Qc2 45. h4 Qb1 46. Qf4 Qh1 47. h5 Qh4+ 48. Qg3 Qe7 49. Kg2 Qc7 50. Qf4 Qc2 51. Kf2 Qc5+ 52. Nd4 Kf8 53. Kg3 {Intending Nxe6+ and mate.} Ke8 54. Kh4 Qe7+ 55. Qf6 Qc5 {[#]} 56. Nxe6 $1 fxe6 57. Qxe6+ Qe7+ 58. Qxe7+ Kxe7 59. f4 gxh5 60. gxh5 {K3P-KPP} Ke6 61. Kg4 d4 62. Kf3 Kf5 63. Ke2 {Kd3 would kill now.} Kxf4 64. e6 Kf5 65. e7 {Accuracy: White = 71%, Black = 15%.} 1-0

[Event "86th BRA-ch 2019"]
[Site "Natal"]
[Date "2020.01.12"]
[Round "2.1"]
[White "Molina, Roberto Junio Brito"]
[Black "Fier, Alexandr"]
[Result "1-0"]
[ECO "B33"]
[WhiteElo "2431"]
[BlackElo "2528"]
[Annotator "TA"]
[PlyCount "51"]
[EventDate "2020.01.05"]
[EventType "k.o."]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,143,25,15,9,9,18,11,10,7,17,0,0,0,0,0,7,0,0,0,14,14,6,13,16,8,21,27,40,-2,183,179,164,177,166,153,212,208,214,150,137,128,130,119,254,258,285,285,280,270,294,159,159,159,159,159,159,159,159,145,203,203,203,203,203,203,203,203,212,203,299,275,291,285,400,393,375,311,275,0,354,358,353,346,346,345,339,329,321,314,680,680,29982,600,603,567,29942,29950,29949,29946,29951,12843,29950,8635,8635,8635,8881,8628,29940,8628,8628,8628,8617,8603,8595,8595,8007,7872,8595,852,8588,8566,8566,8179,5949,6868]} 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 b5 9. Nd5 Be7 10. Bxf6 Bxf6 11. c4 b4 {B33: Sicilian: Pelikan and Sveshnikov Variations} 12. Nc2 O-O 13. Be2 (13. g3 Bg5 14. Bg2 a5 15. O-O Ne7 16. Nce3 Bxe3 17. Nxe3 Be6 18. b3 Ra7 19. Qd3 {½-½ (52) Nepomniachtchi,I (2776)-Yu,Y (2763) Khanty-Mansiysk 2019}) 13... a5 {The position is equal.} 14. O-O Bg5 15. Qd3 Be6 16. Bf3 Ra7 17. Rad1 g6 18. Qe2 Rd7 19. b3 Nb8 {[%cal Bc6b8,Bb8a6,Ba6c5][%mdl 32]} 20. g3 $146 ({Predecessor:} 20. Rfe1 f5 21. exf5 gxf5 {1-0 (38) Haenselmann,H (1692)-Schwartz,O (1512) Willingen 2018}) 20... Na6 21. Bg2 Nc5 22. f4 exf4 23. gxf4 Bh6 24. Nd4 (24. Nde3 $5 {[%cal Rf4f5]}) 24... Re8 $2 (24... Bxd5 $11 25. exd5 (25. cxd5 Qh4 $11) 25... Qh4) 25. Nc6 $1 $36 {[%cal Rc6d8][%mdl 2048] White is in control.} Qh4 {And now ...Bxd5 would win.} 26. Qe3 {Played: Qe2-e1} 1-0

[Event "86th BRA-ch 2019"]
[Site "Natal"]
[Date "2020.01.12"]
[Round "2.1"]
[White "Macedo, Maximo Iack"]
[Black "Diamant, Andre"]
[Result "1/2-1/2"]
[ECO "A12"]
[WhiteElo "2324"]
[BlackElo "2547"]
[Annotator "TA"]
[PlyCount "126"]
[EventDate "2020.01.05"]
[EventType "k.o."]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,126,0,0,12,0,-6,-14,-10,-31,19,-17,0,-24,7,0,-6,-24,-22,-31,-31,-49,-43,-57,-14,-22,-14,-10,-6,-10,-8,-31,-32,-45,-42,-57,-52,-54,-56,-70,0,-61,-61,-64,-69,-72,-64,-63,-41,-49,-49,-43,-33,-96,-79,-70,-69,-62,-61,-87,-68,-112,-121,-119,-128,-183,-195,-193,-108,-155,-68,-77,-62,-95,10,0,108,108,134,133,139,124,114,115,200,200,200,200,200,200,200,180,180,103,180,104,104,104,104,104,104,104,104,104,104,104,104,104,104,104,104]} 1. b3 d5 2. Bb2 Bg4 3. Nf3 Nd7 4. e3 Ngf6 5. Be2 e6 6. O-O Bd6 7. c4 c6 8. h3 Bh5 9. Nc3 O-O 10. d4 Qe7 {A12: English Opening: 1...c6 with b3 by White} 11. Qc2 Rfe8 (11... Bg6 12. Bd3 Bxd3 13. Qxd3 Rad8 14. Qc2 h6 15. Rad1 Bb4 16. g3 a6 17. Kg2 Rfe8 18. Ne2 {1-0 (54) Rasulov,V (2533)-Pourramezanali,A (2496) Nakhchivan 2019}) 12. Rfe1 Bg6 {The position is equal.} 13. Bd3 Bh5 $146 ({Predecessor:} 13... Bxd3 14. Qxd3 e5 15. e4 dxc4 16. Qxc4 exd4 17. Nxd4 Qf8 18. Rad1 Rad8 19. Qe2 Nc5 20. Nf5 {½-½ (20) Aalderink,G (2113)-Bendig,F (2311) LSS email 2008}) 14. Be2 a6 15. Rac1 Bb4 16. Ne5 Bxe2 17. Nxd7 Bh5 18. Nxf6+ Qxf6 19. a3 Bd6 20. e4 {e5 is the strong threat.} Qf4 {( -> ...Qh2+)} ({Don't blunder} 20... Qxd4 $2 21. Nb5 $1 $16 {[%mdl 512]}) 21. e5 {Threatens to win with g3.} Bg6 (21... Be7 {with more complications.} 22. Ne2 Qh4 23. c5 Reb8 24. Qd3 b6) 22. Qd1 {Black must now prevent Ne2.} Be7 23. Ne2 Qh4 24. cxd5 cxd5 25. Rc7 Rac8 26. Qc1 Rxc7 27. Qxc7 Qe4 $1 28. b4 Bh5 (28... Kf8 $15) 29. Kf1 (29. Rc1 $1 $11 Qxe2 30. Qxe7 $1 {[%mdl 512]}) 29... Qd3 $15 30. Qc3 Qb5 31. g4 Bg6 32. Kg2 Bg5 33. Bc1 Bh4 34. Be3 h6 35. Ng1 (35. Nf4 $15) 35... Be4+ 36. Kh2 f6 37. exf6 Bxf6 38. f3 Bg6 39. Bf4 Qc4 40. Qxc4 dxc4 41. Rc1 (41. Be5 $17) 41... Bd3 $19 42. Be5 Rd8 (42... Be7 $19 43. h4 Bxh4) 43. f4 {[#]} Rxd4 (43... a5 $1 $17 {[%mdl 512]} 44. Bxf6 (44. bxa5 Be7) 44... gxf6 45. bxa5 Rxd4) 44. Bxd4 $15 Bxd4 $17 {[%mdl 4096] Endgame KRN-KB} 45. Rd1 Kh7 (45... Bb2 $17 46. Nf3 Be4 47. Rd8+ Kh7) 46. Nf3 $11 Bb2 (46... Be3 $1 $11 47. Kg3 g5 48. fxg5 hxg5) 47. Ne5 $16 Bxa3 48. Nxd3 cxd3 {KR-KB} 49. b5 Bd6 50. Kg3 g5 (50... axb5 $16 51. Rxd3 Bc5) 51. Rxd3 $18 Bxf4+ 52. Kf3 axb5 53. Rd7+ Kg6 54. Rxb7 h5 {[#]} 55. Rxb5 (55. Rb6 $1 $18) 55... hxg4+ (55... h4 $16 56. Rc5 Kf6) 56. hxg4 ({White should play} 56. Kxg4 $18 {And now h4 would win.} Bd2 57. Re5) 56... Kf6 {White is better.} 57. Ke4 Bh2 58. Ra5 Bf4 59. Ra1 Ke7 {[#]} 60. Rd1 $1 Bg3 61. Rh1 Bf4 62. Kd4 Bg3 63. Rh6 Kd6 {Accuracy: White = 48%, Black = 52%.} 1/2-1/2

[Event "86th BRA-ch 2019"]
[Site "Natal"]
[Date "2020.01.13"]
[Round "2.2"]
[White "Diamant, Andre"]
[Black "Macedo, Maximo Iack"]
[Result "1-0"]
[ECO "A13"]
[WhiteElo "2547"]
[BlackElo "2324"]
[Annotator "TA"]
[PlyCount "57"]
[EventDate "2020.01.05"]
[EventType "k.o."]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,57,0,0,0,3,0,7,0,0,0,0,0,2,0,0,-14,14,14,78,71,161,152,154,157,165,148,155,167,158,156,167,166,172,166,172,168,172,163,159,156,162,162,207,197,263,252,624,637,635,610]} 1. c4 e6 2. Nf3 Nf6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Bd7 6. Qxc4 {A13: English Opening: 1...e6} c5 7. Ne5 Qc8 8. Nxd7 {The position is equal.} Qxd7 9. O-O Nc6 10. Qa4 Rc8 11. Nc3 Be7 12. a3 Rb8 $146 ({Predecessor:} 12... Nd5 13. Nxd5 exd5 14. b4 Bf6 15. Rb1 c4 16. e3 O-O 17. b5 {½-½ (17) Ponomariov,R (2710)-Wojtaszek,R (2748) Czech Republic 2016}) 13. d3 b5 (13... O-O $11 {keeps the balance.}) 14. Nxb5 $16 {Strongly threatening Bxc6.} Nd4 {[#]} (14... O-O $16) 15. Nxd4 $1 $18 {Black must now prevent Bc6.} Qxa4 16. Bc6+ Qxc6 17. Nxc6 Rb6 18. Nxe7 ({Worse is} 18. Nxa7 Kd7 $15) 18... Kxe7 {[#]} 19. b4 $1 {[%mdl 512]} cxb4 20. Be3 Rc6 21. axb4 a6 22. Bc5+ Kd7 23. e4 Kc7 24. Ra3 Rd8 25. Rfa1 Kb7 26. Be3 {Hoping for b5!} Ng4 (26... Kc8 {was called for.} 27. R1a2 e5) 27. b5 axb5 $2 (27... Rcd6 28. bxa6+ Ka8) 28. Ra7+ Kc8 29. Rxf7 {Accuracy: White = 85%, Black = 50%.} 1-0

[Event "86th BRA-ch 2019"]
[Site "Natal"]
[Date "2020.01.13"]
[Round "2.2"]
[White "Fier, Alexandr"]
[Black "Molina, Roberto Junio Brito"]
[Result "1-0"]
[ECO "D32"]
[WhiteElo "2528"]
[BlackElo "2431"]
[Annotator "TA"]
[PlyCount "71"]
[EventDate "2020.01.05"]
[EventType "k.o."]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 21,71,35,41,37,49,38,43,36,53,61,58,64,130,122,108,116,129,107,99,87,94,58,240,226,185,228,274,278,277,272,272,265,770,742,1123,649,1126,1127,1106,1116,1116,1088,29958,29960,29958,29960,29954,29957,29993,11556,5261,876]} 1. c4 e6 2. Nf3 d5 3. e3 c5 4. b3 Nf6 5. Bb2 Be7 6. Nc3 O-O 7. cxd5 exd5 8. d4 Nc6 9. Be2 Bg4 10. dxc5 Bxc5 11. O-O a6 12. h3 {D32: Tarrasch Defence: Sidelines and lines without g3} Bh5 13. Nh4 Bxe2 14. Nxe2 {[#] White is slightly better.} Ba7 $146 ({Predecessor:} 14... Re8 15. Nf3 Ne4 16. Ned4 {1-0 (75) Sargissian,G (2689)-Yilmaz,M (2636) St Petersburg 2018}) 15. Nf5 Re8 16. Neg3 {[%cal Be2g3,Bg3f5,Bf5h6][%mdl 32] And now Nxg7! would win.} g6 (16... Re6 $1 $14) 17. Qf3 $16 gxf5 18. Nxf5 {Threatening mate with Qg3+.} Bb8 19. Nh6+ Kg7 {aiming for ...Be5.} 20. Qh5 $1 {Intending Nf5+ and mate.} Re5 21. Bxe5 ({Wrong is} 21. Qxf7+ $2 Kxh6 22. f4 Qe7 $19) 21... Bxe5 $2 ({Better is} 21... Nxe5 $14 22. Nf5+ Kf8 23. Qh6+ (23. Qg5 Ng6 $14) 23... Ke8) 22. Qg5+ $18 Kf8 23. Rac1 Qe8 24. f4 $1 {[%cal Rf4e5]} ({Not} 24. Nf5 Ne4 $11) 24... Bb2 {[#]} 25. Rc2 $1 ({Worse is} 25. Nf5 Ne4 $15) 25... Qxe3+ 26. Kh2 Bd4 $2 (26... Qd3 27. Rxb2 Qg6) 27. Nf5 Qd3 28. Qg7+ Ke8 29. Re1+ Ne4 30. Qg8+ Kd7 31. Qxf7+ {[%mdl 64] Double Attack} Kc8 {[#]} 32. Rxe4 $1 {[%cal Re4e8][%mdl 512]} Bg1+ (32... Qxe4 33. Nd6+) 33. Kxg1 {[%cal Re4e8]} dxe4 34. Ne7+ Kc7 {[#]} 35. Nd5+ (35. Rxc6+ $142 $1 {[%mdl 512]} Kd7 (35... bxc6 36. Nd5+) 36. Qe6+ Kd8 37. Rd6+ Qxd6 38. Qxd6+ Ke8 39. Nd5 Kf7 40. Qf6+ Kg8 41. Ne7#) 35... Kb8 36. Rxc6 {Accuracy: White = 83%, Black = 38%.} (36. Qc7+ $142 Ka7 37. Qb6+ Kb8 38. Rxc6 Qd1+ 39. Kh2 Qxd5 40. Rc7) 1-0

[Event "86th BRA-ch 2019"]
[Site "Natal"]
[Date "2020.01.13"]
[Round "2.2"]
[White "Labussiere, Victor"]
[Black "Lima, Darcy"]
[Result "1/2-1/2"]
[ECO "E92"]
[WhiteElo "2363"]
[BlackElo "2534"]
[Annotator "TA"]
[PlyCount "54"]
[EventDate "2020.01.05"]
[EventType "k.o."]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,54,55,72,34,42,39,54,40,34,32,70,-12,-14,-14,-8,-5,22,0,0,-15,-15,-25,0,-102,-12,-102,-102,-123,-115,-121,-137,-149,-124,-133,-127,-138,-136,-136,-119,-132,0]} 1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. d4 O-O 6. Be2 e5 7. d5 Ne8 8. O-O f5 9. Ne1 {E92: King's Indian: Classical: 6 Be2 e5: 7 dxe5, 7 Be3 and Petrosian System without 7...Nbd7} (9. Ng5 Qe7 10. exf5 gxf5 11. f4 h6 12. Nf3 e4 13. Nd4 c5 14. dxc6 Nxc6 15. Be3 Nxd4 16. Bxd4 Be6 17. Bxg7 Qxg7 {1-0 (35) Kristiansen,J (2423)-Ilincic,Z (2417) Kecskemet 2015}) 9... Nf6 10. f3 f4 11. b4 {White is slightly better.} a5 $146 ({Predecessor:} 11... h5 12. c5 h4 13. h3 Nh5 14. Nd3 a6 15. a4 Qg5 16. Nf2 Nd7 {1-0 (29) Gorner,M-Vogeltanz,M Klatovy 1999}) 12. bxa5 c5 13. dxc6 (13. Bd2 $14) 13... bxc6 $11 14. Bd2 Qxa5 15. Nd3 Na6 16. Be1 Be6 17. Nd5 Qd8 $36 {[%mdl 2048] Black has the initiative.} 18. Nxf6+ Bxf6 19. Qc2 {[#]} (19. c5 $11 {keeps the balance.}) 19... Rf7 (19... c5 $1 $17) 20. Bf2 {[#]} (20. c5 $1 $11 {remains equal.}) 20... c5 $1 $17 21. Rab1 Nb8 22. Rb2 Nc6 23. Rd1 {next Nxc5! is good for White.} Qc8 24. Rdb1 Rfa7 25. Bf1 Bd8 26. Nc1 Ba5 27. Ne2 Bd8 {Accuracy: White = 47%, Black = 43%.} (27... g5 $17 28. Qd3 Qd7) 1/2-1/2

[Event "86th BRA-ch 2019"]
[Site "Natal"]
[Date "2020.01.13"]
[Round "2.2"]
[White "Martins, Vinicius Tine"]
[Black "Supi, Luis Paulo"]
[Result "0-1"]
[ECO "A30"]
[WhiteElo "2309"]
[BlackElo "2577"]
[Annotator "TA"]
[PlyCount "54"]
[EventDate "2020.01.05"]
[EventType "k.o."]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,54,-14,3,0,0,0,0,-6,0,-47,-14,-95,-68,-90,-22,-18,-14,-32,17,0,2,2,21,0,0,0,-2,-10,0,-13,-18,-71,-31,-276,-271,-570,-525,-692,-675,-653,-624]} 1. Nf3 Nf6 2. c4 b6 3. g3 c5 4. Bg2 Bb7 5. Nc3 g6 6. d3 Bg7 7. Bd2 Nc6 8. O-O O-O 9. e4 {A30: Symmetrical English: Double Fianchetto and Hedgehog} (9. Ne5 Qc7 10. Nxc6 Bxc6 11. e4 e6 12. Bf4 d6 13. Qd2 a6 14. a4 Rab8 15. Rfb1 Nh5 16. Be3 f5 {0-1 (63) Ftacnik,L (2555)-Ponomariov,R (2710) Czech Republic 2016}) 9... d6 10. Ne1 Nd7 $146 ({Predecessor:} 10... e6 11. Nc2 Re8 12. f4 Rc8 13. Qe2 a6 14. Rae1 Nd4 15. Qd1 Nd7 16. Nxd4 cxd4 {0-1 (26) Wilshusen,H (1982)-Wister,F (2280) ICCF email 2010}) 11. f4 {The position is equal.} a6 12. f5 Nd4 13. Qg4 (13. Nc2 $11) 13... e6 14. Bg5 Bf6 ({Black should try} 14... Ne5 $17 15. Bxd8 Nxg4) 15. Bxf6 $11 Nxf6 16. Qg5 e5 17. Nf3 Kg7 18. Qd2 Bc6 ({Reject} 18... gxf5 19. Nxd4 cxd4 20. Qg5+ Kh8 21. Qxf5 $16) 19. h3 h6 20. Nd1 b5 21. Ne3 Rb8 22. b3 g5 23. h4 (23. Rae1 $11) 23... g4 24. Ng5 $2 {[#]} (24. Ne1 $15) 24... Rg8 ({Don't play} 24... hxg5 25. hxg5 Nh7 26. f6+ Kg8 27. Kf2 $17) 25. Nd5 $2 (25. Ne6+ fxe6 26. fxe6) 25... Bxd5 $19 {Black is clearly winning.} 26. exd5 {and the idea Ne4 leaves White hopeful.} hxg5 27. hxg5 Nh7 {Accuracy: White = 32%, Black = 41%.} 0-1

[Event "86th BRA-ch 2019"]
[Site "Natal"]
[Date "2020.01.13"]
[Round "2.3"]
[White "Fier, Alexandr"]
[Black "Molina, Roberto Junio Brito"]
[Result "1-0"]
[ECO "A13"]
[WhiteElo "2528"]
[BlackElo "2431"]
[Annotator "TA"]
[PlyCount "51"]
[EventDate "2020.01.05"]
[EventType "k.o."]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,51,8,3,-3,35,2,32,25,50,44,55,0,0,0,0,0,81,0,46,46,46,46,60,39,63,56,85,30,66,25,134,131,368,366,475,136,200,200,493,462]} 1. c4 e6 2. Nf3 Nf6 3. b3 Be7 4. Bb2 O-O 5. e3 d5 6. Nc3 c5 7. cxd5 Nxd5 8. h4 {A13: English Opening: 1...e6} Nxc3 9. Bxc3 Bf6 10. Qc2 {White is slightly better.} Bxc3 11. dxc3 Nc6 12. Ng5 $146 ({White should play} 12. Bd3 $14) ({Predecessor:} 12. Bd3 f5 13. O-O-O {1-0 (48) Nepomniachtchi,I (2763)-Nakamura,H (2746) St Petersburg 2018}) 12... f5 $11 13. f4 h6 14. Nf3 Qf6 (14... Qc7 $11) 15. Rd1 (15. O-O-O $1 $16) 15... e5 16. Bc4+ Kh8 17. Bd5 exf4 18. exf4 (18. Bxc6 $5 Qxc6 19. Ne5 $16) 18... Bd7 19. O-O Rae8 20. h5 (20. Rd3 $16) 20... Re3 21. c4 Be8 {[#]} (21... Rfe8 $11 {remains equal.}) 22. Qf2 $1 $36 {[%cal Rf2e3][%mdl 2048] White is in control.} Qc3 $2 {[#]} (22... Rc3 $16) 23. Rc1 $1 $18 {[%cal Rc1c3]} Qd3 24. Bxc6 $2 (24. Rfe1 $18 {and the rest is easy.} Rxf3 25. Qxc5 Qd4+ 26. Qxd4 Nxd4 27. gxf3) 24... Bxc6 (24... bxc6 $16 25. Ne5 Qd4) 25. Ne5 Qe4 $2 (25... Qe2 26. Ng6+ {[%mdl 64] Double Attack} Kg8) 26. Rfe1 {Accuracy: White = 38%, Black = 15%.} 1-0

[Event "86th BRA-ch 2019"]
[Site "Natal"]
[Date "2020.01.13"]
[Round "2.4"]
[White "Molina, Roberto Junio Brito"]
[Black "Fier, Alexandr"]
[Result "1/2-1/2"]
[ECO "A13"]
[WhiteElo "2431"]
[BlackElo "2528"]
[Annotator "TA"]
[PlyCount "96"]
[EventDate "2020.01.05"]
[EventType "k.o."]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,96,12,10,10,12,22,10,23,15,26,27,27,31,29,31,31,31,36,35,36,16,23,20,39,37,39,24,22,18,34,31,31,32,68,71,135,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-218,-230,-228,-230,-265,-265,-258,-258,-241,-241,-281,-280,-281,-280,-280,-279,-253,-245,-218,-157]} 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 b5 9. Nd5 Be7 10. Bxf6 Bxf6 11. c4 b4 {B33: Sicilian: Pelikan and Sveshnikov Variations} 12. Nc2 O-O 13. g3 Be6 {The position is equal.} (13... Bg5 14. Bg2 a5 15. O-O Ne7 16. Nce3 Bxe3 17. Nxe3 Be6 18. b3 Ra7 19. Qd3 {½-½ (52) Nepomniachtchi,I (2776)-Yu,Y (2763) Khanty-Mansiysk 2019}) 14. Bg2 Bxd5 15. cxd5 Nd4 16. Nxd4 exd4 17. Qd3 Qc7 $146 ({Predecessor:} 17... Qb6 18. Bh3 Rfd8 19. O-O {1-0 (46) Quanzaah,E (2150)-Galvin,J (2061) ICCF email 2014}) 18. Bh3 Rfb8 19. O-O Rb5 20. Bg4 Rc5 21. Bd1 a5 22. Ba4 Qb6 23. Bc6 Qa6 24. Qd2 Rb8 25. Rac1 Rxc1 26. Rxc1 d3 27. Ba4 $1 Rc8 (27... Qa7 $142) 28. Bc6 (28. Rc6 $16 Qb7 29. Qxd3) 28... Qb6 29. Rc4 b3 30. a4 g6 31. Kg2 Bxb2 32. Qxb2 d2 $1 {[%cal Rd2d1]} 33. Rd4 Qxd4 $1 34. Qxd4 b2 $1 $36 {[%cal Rb2b1][%mdl 2048] Black has good play.} 35. Qd3 Rb8 36. Bb5 Rc8 37. Bc6 Rb8 38. Bb5 Rc8 $1 {[%cal Rc8c1] Strongly threatening ...Rc1.} 39. e5 $2 (39. Bc6 $11 {and White is okay.} Rb8) 39... b1=Q $19 ({Don't take} 39... Rc1 40. Qxd2 b1=Q 41. Qg5) 40. Qxb1 Rc1 41. Qd3 d1=Q {Hoping for ...Qg1+.} 42. exd6 {[#] Black must now prevent d7.} Qxd3 $1 43. Bxd3 {[%mdl 4096] Endgame [#] KR-KB} Rc5 $1 44. Bb5 {intending Bc6.} Rxd5 45. d7 Kf8 46. Kf3 Ke7 {...Rxb5! is the strong threat.} 47. Ke4 Rd2 48. Ke3 Rd6 {Accuracy: White = 58%, Black = 72%.} 1/2-1/2

[Event "86th BRA-ch 2019"]
[Site "Natal"]
[Date "2020.01.14"]
[Round "3.1"]
[White "Diamant, Andre"]
[Black "Lima, Darcy"]
[Result "1/2-1/2"]
[ECO "E17"]
[WhiteElo "2547"]
[BlackElo "2534"]
[Annotator "TA"]
[PlyCount "98"]
[EventDate "2020.01.05"]
[EventType "k.o."]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,98,16,19,3,41,31,42,39,58,52,45,45,47,17,29,20,29,27,16,21,35,0,12,13,50,50,60,55,74,19,31,25,30,25,33,18,12,6,8,7,39,39,39,39,45,0,0,0,0,0,14,15,26,16,38,26,40,26,23,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. c4 Nf6 2. Nf3 e6 3. g3 b6 4. Bg2 Bb7 5. d4 Be7 6. O-O O-O 7. Re1 d5 8. cxd5 exd5 9. Nc3 Na6 10. b3 {E17: Queen's Indian: 4 g3 Bb7 5 Bg2 Be7} c5 11. Bb2 Nc7 12. Rc1 {White is slightly better.} Ne6 13. dxc5 $146 ({Predecessor:} 13. e3 Re8 14. Re2 Bf8 15. Rd2 Qe7 16. Nh4 g6 17. dxc5 bxc5 18. Nxd5 Nxd5 19. Bxd5 {1-0 (35) Ding,L (2766)-Tomashevsky,E (2728) Huaian 2016}) 13... bxc5 14. Ne5 Rb8 {Threatening ...d4.} 15. e4 {[%cal Rc3d5]} d4 16. Na4 Nd7 17. Nxd7 Qxd7 18. Ba3 {[%cal Ra4c5]} Rbc8 19. Qd3 c4 20. bxc4 Qxa4 21. Bxe7 Rfe8 22. Bd6 Qxa2 23. e5 (23. Red1 $16) 23... Bxg2 $11 24. Kxg2 Qa6 25. f4 Nc5 26. Bxc5 ({But not} 26. Qxd4 Qc6+ 27. Qd5 Qxd5+ 28. cxd5 Nd3 $11) 26... Qc6+ {[%mdl 64] [#] Double Attack} 27. Qe4 Qxc5 28. Qd5 Red8 29. Qxc5 Rxc5 $14 {[%mdl 4096] Endgame KRR-KRR} 30. Kf3 Rdc8 31. Ke4 Rxc4 32. Rxc4 Rxc4 $11 {KR-KR} 33. Ra1 (33. f5 {is interesting.} Kf8 34. Rb1 Rc2 35. Rb8+ Ke7 36. Rb7+) 33... Rc7 (33... g6 {feels hotter.} 34. Rxa7 Rc2 35. h4 Rc3 36. g4 Rg3) 34. Kxd4 g6 35. g4 Rd7+ 36. Ke4 Rb7 37. Ra4 a5 38. Rxa5 Rb4+ {The position is equal.} 39. Kf3 Rb3+ 40. Kg2 Rb2+ 41. Kg3 Rb3+ 42. Kh4 h6 43. Ra4 Rf3 44. Rb4 Kg7 45. Re4 Kh7 46. Rd4 Kg7 47. Re4 Kh7 48. Rc4 Kg7 49. Rb4 Kg8 {Accuracy: White = 59%, Black = 64%.} 1/2-1/2

[Event "86th BRA-ch 2019"]
[Site "Natal"]
[Date "2020.01.14"]
[Round "3.1"]
[White "Fier, Alexandr"]
[Black "Supi, Luis Paulo"]
[Result "1/2-1/2"]
[ECO "D37"]
[WhiteElo "2528"]
[BlackElo "2577"]
[Annotator "TA"]
[PlyCount "66"]
[EventDate "2020.01.05"]
[EventType "k.o."]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,66,15,15,10,17,24,28,19,15,14,22,24,25,23,35,30,31,6,8,11,5,-27,-26,-22,-13,-19,-32,-41,-30,-22,0,0,0,0,0,-15,0,0,0,-31,-31,-24,-27,-50,-43,-43,-43,-53,-41,-39,-22,-47,-37,-47,-24]} 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bf4 O-O 6. e3 b6 7. cxd5 Nxd5 8. Nxd5 {D37: Queen's Gambit Declined: 5 Bf4} Qxd5 9. Be2 Bb7 10. Bxc7 {White has an edge.} Qa5+ 11. Kf1 Nd7 12. Kg1 $146 ({Predecessor:} 12. h4 Rac8 13. Bf4 Rfd8 14. Kg1 Bxf3 15. Bxf3 e5 {½-½ (31) Ding,L (2769)-So,W (2799) Berlin 2018}) 12... Rac8 13. Bg3 Rfd8 14. h3 Nf6 15. Nd2 Qf5 16. Kh2 Bd6 17. Rf1 Bxg3+ 18. fxg3 Qc2 19. Bf3 Bxf3 20. Nxf3 Qxb2 21. Ne5 Qc2 22. Qf3 Rf8 23. g4 Qc7 24. Qg3 Qc2 25. Qf3 Qc7 26. Qg3 Ne4 27. Qf4 Qb7 {[#] White must now prevent ...g5.} 28. Nd7 Qxd7 29. Qxe4 h6 30. Rf2 Qd6+ 31. Kg1 Rc7 32. Rd1 Rfc8 33. Qf3 f6 {Accuracy: White = 57%, Black = 70%.} 1/2-1/2

[Event "86th BRA-ch 2019"]
[Site "Natal"]
[Date "2020.01.15"]
[Round "3.2"]
[White "Supi, Luis Paulo"]
[Black "Fier, Alexandr"]
[Result "1/2-1/2"]
[ECO "B31"]
[WhiteElo "2577"]
[BlackElo "2528"]
[Annotator "TA"]
[PlyCount "48"]
[EventDate "2020.01.05"]
[EventType "k.o."]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,48,26,28,28,27,33,29,41,11,36,38,38,8,28,0,2,10,8,0,17,0,18,0,0,0,0,0,20,0,0,0,36,37,35,47,45,0,26,0,28]} 1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. Bxc6 dxc6 5. d3 Bg7 6. O-O Qc7 {B31: Sicilian: 2...Nc6 3 Bb5 g6} 7. h3 e5 (7... Nf6 8. e5 Nd5 9. Re1 O-O 10. c4 Nb6 11. Nc3 Bf5 12. g4 Be6 13. Qe2 Nd7 14. Bf4 {½-½ (94) Caruana,F (2822)-Le,Q (2713) Bucharest 2019}) 8. a3 Nf6 {White has an edge.} 9. b4 cxb4 (9... c4 $5) 10. axb4 O-O 11. Na3 $146 ({Predecessor:} 11. Bb2 Nh5 12. Nbd2 Be6 13. Re1 Rfd8 14. Ng5 Nf4 15. Nxe6 Nxe6 {1-0 (68) Mrdja,M (2368)-Sgnaolin,D (2118) Robecchetto 2002}) 11... Nh5 12. b5 f5 13. Rb1 fxe4 14. dxe4 Nf4 15. Bxf4 exf4 16. Qd3 Be6 17. bxc6 Rad8 18. Qb5 bxc6 19. Qc5 Ba2 20. Rb4 Rf7 {[#] ...Bf8 is the strong threat.} 21. Ra4 $1 Bf8 22. Qc3 Bg7 23. Qc5 Bf8 24. Qc3 Bg7 {Accuracy: White = 51%, Black = 60%.} 1/2-1/2

[Event "86th BRA-ch 2019"]
[Site "Natal"]
[Date "2020.01.15"]
[Round "3.2"]
[White "Lima, Darcy"]
[Black "Diamant, Andre"]
[Result "1/2-1/2"]
[ECO "D41"]
[WhiteElo "2534"]
[BlackElo "2547"]
[Annotator "TA"]
[PlyCount "97"]
[EventDate "2020.01.05"]
[EventType "k.o."]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,97,28,15,29,20,21,20,35,27,27,30,23,35,32,27,31,26,39,-29,4,4,4,7,52,37,46,38,35,39,39,41,43,48,42,34,31,28,62,11,17,2,30,0,0,0,0,0,0,0,0,0,78,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c5 5. cxd5 Nxd5 6. g3 cxd4 7. Nxd5 Qxd5 8. Qxd4 Nc6 {D41: Queen's Gambit Declined: Semi-Tarrasch with 5 cxd5} (8... Qxd4 9. Nxd4 Bb4+ 10. Bd2 Bxd2+ 11. Kxd2 Bd7 12. Bg2 Nc6 13. Bxc6 Bxc6 14. Nxc6 bxc6 15. Rhc1 O-O-O+ 16. Ke1 Kb7 17. Rc3 Rd5 18. Rac1 Rc8 19. Rb3+ Kc7 20. Rbc3 Kb6 21. Rb3+ Kc7 22. Rbc3 Kb6 {½-½ (22) Zhou,J (2606)-Dragun,K (2614) Sturbridge 2019}) 9. Qxd5 exd5 10. Bg2 Be7 11. O-O O-O $146 ({Predecessor:} 11... Bf5 12. Rd1 Be4 13. Be3 O-O 14. Rac1 Rfd8 15. Nd4 Nxd4 16. Bxd4 Bxg2 17. Kxg2 {1-0 (45) Nesterov,Y (2420)-Zakharov,A (2365) Protvino 1992}) 12. Bg5 Bxg5 13. Nxg5 h6 14. Nf3 Re8 15. e3 Bg4 16. Rfd1 ({Better is} 16. Rac1 $14) 16... d4 17. exd4 Rad8 18. h3 Bxf3 (18... Be6 {feels hotter.} 19. a3 Bd5 20. b4 f6 21. h4 Re7) 19. Bxf3 Rxd4 20. Bxc6 Rxd1+ 21. Rxd1 bxc6 $11 {[%mdl 4096] Endgame KR-KR} 22. Kf1 Re5 23. Rd8+ Kh7 24. Rd7 Ra5 $1 25. a3 f6 26. Rb7 ({White should try} 26. Rc7 $14) 26... h5 27. Ke2 Kh6 28. Kd3 Rf5 29. Ke3 Re5+ 30. Kd4 Rd5+ 31. Kc4 (31. Ke4 $11) 31... a5 $16 32. b4 axb4 33. axb4 ({Much worse is} 33. Kxb4 Rd2 $11) (33. Rxb4 $16 Ra5 34. Kb3) 33... Rf5 $11 {The position is equal.} 34. Rc7 Rxf2 35. Rxc6 h4 36. gxh4 {[#] aiming for b5.} Kh5 37. Kb3 Kxh4 38. Rc3 Rf1 39. b5 {Threatens to win with Kc4.} Rb1+ 40. Kc4 {[#] Black must now prevent Rb3.} f5 41. Rf3 f4 42. Rxf4+ Kxh3 43. Rf3+ Kh4 44. Rb3 Rc1+ 45. Kd5 g5 46. b6 {[%cal Bb5b6,Bb6b7][%mdl 32]} Rc8 $1 47. b7 Rb8 48. Kc6 {And now Kc7 would win.} g4 49. Kc7 {Accuracy: White = 58%, Black = 77%.} 1/2-1/2

[Event "86th BRA-ch 2019"]
[Site "Natal"]
[Date "2020.01.15"]
[Round "3.3"]
[White "Fier, Alexandr"]
[Black "Supi, Luis Paulo"]
[Result "1/2-1/2"]
[ECO "E14"]
[WhiteElo "2528"]
[BlackElo "2577"]
[Annotator "TA"]
[PlyCount "85"]
[EventDate "2020.01.05"]
[EventType "k.o."]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 22,85,0,0,26,25,22,5,31,0,19,14,3,-24,-24,-29,-22,-74,-79,-160,-142,-143,-133,-137,-128,-127,-131,-125,-118,-105,-113,-104,-38,-50,0,-95,-99,-76,-67,-69,-34,-53,-12,-5,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,5,0,8,0,0,0]} 1. d4 Nf6 2. Nf3 e6 3. e3 b6 4. Bd3 Bb7 5. O-O d5 6. c4 Bd6 7. b3 O-O 8. Bb2 Nbd7 9. Nc3 a6 10. Rc1 Qe7 11. Na4 dxc4 12. bxc4 Ba3 {E14: Queen's Indian: Classical Variation (4 e3)} 13. Bxa3 Qxa3 14. Nc3 {[#]} Rad8 $146 ({Predecessor:} 14... Qd6 15. Ng5 c5 16. Nge4 Bxe4 17. Nxe4 Nxe4 18. Bxe4 Rad8 19. Bf3 Nf6 20. Qa4 a5 21. Rfd1 cxd4 22. exd4 Qf4 23. Qb5 Rxd4 24. Qxb6 Rxd1+ 25. Rxd1 Qxc4 26. Qxa5 e5 27. Qxe5 {½-½ (27) Vassallo Barroche,M (2442)-Pelletier,Y (2604) Lille 2013}) 15. Qe2 Rfe8 16. e4 e5 {[#] aiming for ...exd4.} 17. Nxe5 Nxe5 18. dxe5 Rxe5 19. f4 (19. Rfd1 $11) 19... Re7 $17 20. Bb1 (20. e5 $142) 20... Bxe4 21. Bxe4 Rde8 22. Bxh7+ Kxh7 23. Qf2 Kg8 24. h3 Re3 25. Nd5 Nxd5 26. cxd5 Re2 (26... Qd6 $17 27. Rfd1 Re2) 27. Qf3 $15 R2e3 28. Qh5 (28. Qf2 $1 $11) 28... Rc3 $17 29. Rxc3 Qxc3 {[%mdl 4096] Endgame KQR-KQR} 30. Kh2 Qd2 (30... Qc4 $5 {[%cal Rc4f1]} 31. Rf2 b5 $15) 31. Qg5 f6 32. Qf5 $1 {The position is equal.} Rd8 33. Qe6+ Kh8 34. Qe7 Qxd5 35. Qxc7 b5 36. Rf3 Kg8 37. Rg3 {[%csl Gg3][%cal Rc7g7] [#]} Qd7 38. Qb6 Qd6 $1 {[%cal Rd6b6]} 39. Qb7 {[%csl Gg3][%cal Rb7g7]} Rd7 $1 {[%cal Rd7b7]} 40. Qc8+ Rd8 41. Qb7 {[%csl Gg3][%cal Rb7g7]} Rd7 $1 {[%cal Rd7b7]} 42. Qc8+ Rd8 43. Qb7 {Accuracy: White = 48%, Black = 54%.} 1/2-1/2

[Event "86th BRA-ch 2019"]
[Site "Natal"]
[Date "2020.01.15"]
[Round "3.4"]
[White "Supi, Luis Paulo"]
[Black "Fier, Alexandr"]
[Result "1/2-1/2"]
[ECO "E14"]
[WhiteElo "2577"]
[BlackElo "2528"]
[Annotator "TA"]
[PlyCount "132"]
[EventDate "2020.01.05"]
[EventType "k.o."]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,132,22,26,13,13,0,19,23,22,9,17,10,33,10,49,35,63,64,60,43,44,31,50,25,31,9,13,0,25,26,20,20,40,10,24,27,35,17,27,18,20,14,87,45,97,72,66,47,45,46,95,47,79,33,38,34,122,46,75,24,27,21,31,25,36,35,41,41,35,35,31,17,14,16,15,22,10,8,88,57,78,45,57,53,62,48,67,15,18,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. Bxc6 dxc6 5. d3 Bg7 6. Nbd2 {B31: Sicilian: 2...Nc6 3 Bb5 g6} Nf6 7. Nc4 Bg4 8. O-O Nd7 9. Ne3 Bxf3 10. Qxf3 O-O $146 ({Predecessor:} 10... Nf8 11. Rd1 Ne6 12. c3 Qd7 13. a4 O-O 14. h4 {½-½ (65) Yudasin,L (2625)-Kramnik,V (2710) Moscow 1994}) 11. Qe2 e5 12. a4 a5 13. Bd2 b6 14. Nc4 Re8 15. Kh1 Nf8 16. f3 Ne6 17. Qf2 Nd4 18. Bc3 Ra7 19. b3 Rd7 20. Rae1 Qc7 21. Bb2 Ne6 22. g3 Rde7 23. f4 exf4 24. gxf4 Bxb2 25. Nxb2 b5 (25... f5 $11) 26. Nd1 {[%cal Bb2d1,Bd1e3,Be3c4][%mdl 32]} bxa4 (26... f5 $14) 27. bxa4 $16 f5 28. Ne3 Ng7 29. e5 Qd7 30. Nc4 Qd5+ $1 31. Qg2 Rb8 $1 32. Nxa5 Qxg2+ 33. Kxg2 Ra8 $1 {[%cal Ra8a5]} 34. Nc4 (34. Nb3 $16) 34... Rxa4 $11 35. Rb1 Ne6 36. Rb6 Ra2 37. Rf2 Nd4 38. c3 $36 {[%mdl 2048] White is more active.} Ne2 $1 {[%cal Re2f4]} 39. Kf3 Nxc3 40. Rxc6 Rxf2+ 41. Kxf2 $14 {[%mdl 4096] Endgame KRN-KRN} Nd5 42. Rxc5 Nxf4 43. Ke3 Ne6 (43... Rc7 $11 44. Ra5 (44. Rxc7 Nd5+ 45. Kd4 Nxc7 $11) 44... Ng2+ 45. Kf3 Ne1+ 46. Ke2 Ng2) 44. Rc8+ Kg7 45. Nd6 Ra7 46. Re8 Ng5 $1 47. h4 Nf7 {Black wants to play ...Nxd6.} 48. Nc4 ({White should play} 48. Nc8 $14 Ra6 49. d4) 48... Nh6 $1 $11 {The position is equal.} 49. e6 Ng4+ 50. Kd4 f4 51. Rd8 {[#] aiming for Rd7+.} Kf6 52. Rf8+ Kxe6 {And now ...Nf6 would win.} 53. Rxf4 Nf6 {Threatening ...Rd7+.} 54. Rf1 Rd7+ 55. Ke3 Nd5+ 56. Ke4 Ne7 {With the idea ...Nf5.} 57. Ra1 {[#] Hoping for Ra6+.} Nf5 {...Rd4+ is the strong threat.} 58. Ra6+ Ke7 59. h5 Ng3+ 60. Ke5 Rxd3 61. Ra7+ Rd7 62. Rxd7+ Kxd7 63. hxg6 hxg6 64. Kf6 Nf5 65. Kxg6 Nd6 66. Nxd6 Kxd6 {Accuracy: White = 47%, Black = 63%.} 1/2-1/2

[Event "86th BRA-ch 2019"]
[Site "Natal"]
[Date "2020.01.15"]
[Round "3.4"]
[White "Diamant, Andre"]
[Black "Lima, Darcy"]
[Result "1/2-1/2"]
[ECO "A28"]
[WhiteElo "2547"]
[BlackElo "2534"]
[Annotator "TA"]
[PlyCount "155"]
[EventDate "2020.01.05"]
[EventType "k.o."]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,155,7,6,-60,-70,-122,-119,-128,-44,-54,-48,-69,-70,-92,-97,-94,-88,-98,-84,-91,-81,-98,-93,-110,-96,-103,-100,-122,-80,-132,-71,-193,-180,-199,-123,-226,-178,-191,-166,-171,-104,-117,-99,-189,0,-113,-121,-224,-77,-80,-8,-20,-37,-26,-31,-36,-33,-101,-104,-125,-46,-72,-68,-103,-60,-136,-128,-136,-123,-121,-121,-122,-109,-143,-148,-645,-633,-511,-131,-128,-131,-164,-8,-192,0,-108,0,-166,-97,-99,-87,-97,-72,-73,-61,-83,0,0,0,-83,-68,-78,-78,-89,730,-82,-72,-72,-72,-72,-72,-129,-129,-129,-129,-129,-62,-129,-129,-129,-129,-129,-129,-129,-129,-129,-129,-129,-129,-129,-129,-129,-129,-129,-129,-129,-129,-129,-89,-89,-89,-89,-89,-89,-89,-89,-89,-89]} 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. e3 g6 5. a3 Bg7 6. b4 {A28: English Opening: Four Knights Variation} (6. d4 $11) (6. Be2 O-O 7. d3 d5 8. cxd5 Nxd5 9. Qc2 Nxc3 10. bxc3 Na5 11. Rb1 c5 12. c4 b6 13. O-O {½-½ (41) Bauer,C (2626)-Vaibhav,S (2591) Barcelona 2019}) 6... e4 $15 7. Ng5 $146 (7. Nd4 $15) ({Predecessor:} 7. b5 exf3 8. bxc6 dxc6 9. gxf3 O-O 10. Bb2 Re8 11. Qc2 Bf5 12. d3 {½-½ (52) Giffard,N (2400)-Farago,I (2515) Val Thorens 1996}) 7... h6 $17 8. Nh3 d6 (8... d5 $17 9. Bb2 O-O 10. cxd5 Nxd5) 9. Nf4 $15 Ne5 10. Qc2 Bf5 11. Nfd5 Nxd5 12. cxd5 O-O 13. Bb2 c6 14. dxc6 bxc6 15. Na4 a5 16. Bxe5 Bxe5 17. Rb1 axb4 18. axb4 d5 19. Nc5 (19. Qxc6 $142 d4 20. Qc5) 19... d4 (19... Ra3 $142 20. Ba6 Qb6) 20. Bc4 (20. g3 $17 {might work better.}) 20... d3 $19 21. Qd1 Qh4 (21... Qg5 $19 22. Kf1 Bg4) 22. Kf1 (22. h3 $17) 22... Bg4 23. Qe1 Be2+ 24. Kg1 Rfe8 (24... Bd6 $19 25. h3 Rfb8) 25. h3 Bg7 26. Kh2 (26. f3 $17 Qxe1+ 27. Rxe1) 26... Be5+ (26... Qe7 $19 27. Rg1 Qe5+ 28. Kh1 Qh5) 27. Kg1 $17 Kg7 28. Nb3 (28. g3 $17 {was necessary.} Qh5 29. Nxe4 (29. g4 Qh4 $17)) 28... Qd8 (28... Reb8 $19 29. Nc5 Qe7) 29. Nc1 {[#]} Bh5 ({Black should try} 29... Bf3 $1 $17 {[%mdl 512]} 30. Bxd3 (30. gxf3 $2 Qg5+ 31. Kf1 exf3 $19) 30... Bxg2 31. Kxg2 Qg5+ 32. Kf1 exd3 33. Nxd3 Bf6) 30. g4 $11 Qg5 31. Kf1 {Hoping for Qd1.} Bxg4 32. hxg4 Qxg4 33. Nxd3 ({White should play} 33. Bb3 $15) 33... exd3 $17 34. Bxd3 Reb8 $40 {[%mdl 128] Black attacks.} ({Better is} 34... Ra2 $17 35. Qe2 Qd7) 35. Qe2 Qd7 36. Bc4 Ra4 37. d3 (37. Qd3 $15 Qxd3+ 38. Bxd3) 37... Raxb4 38. Rxb4 Rxb4 39. Qf3 h5 40. Kg2 Rb2 41. Rh4 Qe7 42. Re4 $2 {[%mdl 8192]} (42. Rh1 $17) 42... Qg5+ $19 43. Kh3 Bf6 $2 (43... f6 $19 {is more deadly.} 44. Rxe5 Qxe5) 44. Rf4 $17 Rb1 45. Qg2 Qe5 $2 (45... Qc5 $1 $19 {Strongly threatening ...g5.} 46. Qe4 Rg1) 46. Qe4 $2 {[#]} (46. Qxc6 $11 {and White is okay.} Qg5 47. Bd5) 46... Qg5 (46... Qa1 $1 $19 {White must now prevent ...Rh1+.} 47. Qe8 Rg1) 47. Qg2 {Black should prevent Qxg5.} Qe5 (47... Qc5 $17 48. Qe4 Rg1) 48. Qe4 $19 {[#]} Qd6 (48... Qa1 $1 $19 49. Qe8 Rg1) 49. Qe8 Rb7 50. Kg2 Re7 51. Qc8 h4 52. Qg4 Be5 53. Rf3 Bf6 54. Rf4 $1 Re5 {Threatens to win with ...Rg5.} 55. Qf3 Rg5+ 56. Rg4 {and if Rxg5 works, White does fine.} Rf5 $2 {[%mdl 8192]} (56... Rh5 $17) 57. Rf4 $2 (57. Qxf5 $1 $18 Qc7 58. Qe4) 57... Rxf4 (57... Ra5 {is more complex.} 58. Rg4 Rh5 59. Kh1 Qc7 60. Rg1 Ra5) 58. Qxf4 Qxf4 59. exf4 $17 {[%mdl 4096] Endgame KB-KB} Bd4 60. f5 (60. Bb3 $142) 60... g5 61. f3 Kf6 62. Kh3 Ke7 (62... Be3 $17 63. Bb3 Ke7) 63. Kg4 (63. f4 $1 $15) 63... Be3 {Black is better.} 64. Bb3 c5 65. Bc4 f6 66. Ba6 Kd6 67. Bb5 Ke5 68. Ba6 Bf4 69. Bb5 Kd4 70. Kh3 Ke3 71. Kg2 Be5 72. Ba6 Kf4 73. Bc8 h3+ 74. Kxh3 Kxf3 {And now ...g4+ would win.} 75. Bb7+ Kf4 76. Bc8 g4+ 77. Kg2 Ke3 78. Ba6 {Accuracy: White = 38%, Black = 38%.} 1/2-1/2

[Event "86th BRA-ch 2019"]
[Site "Natal"]
[Date "2020.01.15"]
[Round "3.4"]
[White "Lima, Darcy"]
[Black "Diamant, Andre"]
[Result "0-1"]
[ECO "D41"]
[WhiteElo "2534"]
[BlackElo "2547"]
[Annotator "TA"]
[PlyCount "118"]
[EventDate "2020.01.05"]
[EventType "k.o."]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,122,16,16,16,16,16,11,11,9,14,16,9,5,12,11,0,0,19,26,36,34,51,34,54,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-47,-47,-47,-47,-47,-47,-47,-47,-47,-47,-75,-47,-75,-50,-75,-52,-75,-75,-76,-63,-102,-102,-102,-102,-102,-102,-102,-102,-102,-102,-102,-102,-102,-102,-102,-102,-102,-102,-102,-102,-102,-102,-102,-102,-102,-102,-309,-291,-241,-88,-102,-102,-102,-102,-269,-252,-1193,-1159,-1122,-1073,-1100,-1137,-1100,-1010,-940,-722,-722,-695]} 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c5 5. cxd5 Nxd5 6. g3 Nxc3 7. bxc3 cxd4 8. cxd4 Bb4+ {D41: Queen's Gambit Declined: Semi-Tarrasch with 5 cxd5} 9. Bd2 Bxd2+ 10. Qxd2 b6 {The position is equal.} 11. Bg2 Bb7 12. O-O O-O 13. Rfe1 {[#]} Nd7 $146 ({Predecessor:} 13... Be4 14. Ne5 Bxg2 15. Kxg2 Nc6 16. Nf3 {0-1 (41) Aravindh,C (2605)-Dominguez Perez,L (2758) Moscow 2019}) 14. e4 Rc8 15. a4 Nf6 16. Ne5 Qc7 17. a5 Rfd8 18. axb6 axb6 19. Rec1 (19. Qb2 $14) 19... Qxe5 $11 20. dxe5 Rxd2 21. Rxc8+ Bxc8 22. exf6 gxf6 {[%mdl 4096] Endgame KRB-KRB} 23. Ra8 Rc2 24. Bf1 Kg7 25. Rb8 $1 Rc6 26. Bb5 Rc1+ 27. Kg2 e5 28. Rxb6 Rb1 {White must now prevent ...Bd7!} 29. Rc6 $1 Bb7 30. Bd3 Rb4 31. Rc7 Bxe4+ 32. Bxe4 Rxe4 $15 {KR-KR} 33. Kf3 Rb4 34. Re7 Kg6 35. h4 Rb5 36. Ke3 f5 37. Ra7 Rb4 38. Kf3 h5 39. Ra8 Kg7 40. Re8 f6 41. Ra8 f4 42. gxf4 Rxf4+ {[%mdl 64] Double Attack} 43. Kg3 Rg4+ 44. Kh3 Rc4 45. f3 Rc3 46. Kg2 Kg6 47. Rh8 Rc7 48. Kg3 Rh7 49. Ra8 Kf5 50. Rg8 Ra7 51. Rh8 $2 {[#]} (51. Rf8 $17) 51... Rg7+ $1 $19 52. Kf2 {[#]} Kg6 $2 (52... Kf4 $1 $19 {is more deadly.} 53. Ra8 Rd7 54. Ra4+ Rd4) 53. Ra8 Rc7 54. Rg8+ Kf5 {Strongly threatening ...Kf4.} 55. Rh8 $2 (55. Kg3 $17 {was called for.}) 55... Kf4 {...Rc2+ is the strong threat.} 56. Rxh5 $2 (56. Rh6 Rc2+ 57. Kf1) 56... Rc2+ {Black is clearly winning.} 57. Ke1 Rc3 58. Rh8 Rxf3 59. h5 e4 {Played: Rf3-h3} 0-1

[Event "86th BRA-ch 2019"]
[Site "Natal"]
[Date "2020.01.15"]
[Round "3.5"]
[White "Supi, Luis Paulo"]
[Black "Fier, Alexandr"]
[Result "1/2-1/2"]
[ECO "B28"]
[WhiteElo "2577"]
[BlackElo "2528"]
[Annotator "TA"]
[PlyCount "108"]
[EventDate "2020.01.05"]
[EventType "k.o."]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,108,49,49,30,37,35,51,51,52,37,37,38,54,12,18,17,18,12,18,10,25,19,24,15,21,23,33,30,32,12,47,51,47,50,54,42,51,21,98,8,89,48,110,110,103,103,103,106,106,106,108,109,157,84,170,164,206,212,199,143,137,143,218,167,364,353,329,184,222,211,196,148,151,0,146,146,407,400,270,236,381,341,1098,443,893,14,14,14,14,7,74,0,0,0,0,0,6,0,0,0,0]} 1. e4 c5 2. Nf3 a6 3. g3 Nc6 4. Bg2 e6 (4... g6 5. d4 cxd4 6. Nxd4 Bg7 7. Be3 Nf6 8. O-O O-O 9. c4 d6 10. h3 Nxd4 11. Bxd4 Be6 12. Nd2 {½-½ (43) Najer,E (2663)-Vitiugov,N (2736) Sochi 2015}) 5. O-O d6 6. c3 {B28: Sicilian: 2 Nf3 a6 (O'Kelly Variation)} Nf6 7. Qe2 e5 8. Rd1 {White is slightly better.} Be7 9. h3 O-O $146 ({Predecessor:} 9... Qc7 10. Na3 b5 11. d4 h6 12. Nc2 cxd4 13. cxd4 O-O 14. d5 Na5 15. b3 {½-½ (33) Balzano,I (2137)-Lujan,C (2360) Caba 2018}) 10. d4 {Black must now prevent dxe5.} Qc7 11. Bg5 h6 12. Bxf6 Bxf6 13. dxc5 dxc5 14. Na3 {[%cal Bb1a3,Ba3c2,Bc2e3,Be3d5][%mdl 32]} b5 15. Nc2 Be6 16. Ne3 Be7 17. Nd5 Qb7 18. Rd2 c4 19. Qe3 Qa7 20. Nxe7+ Qxe7 21. Rad1 Qa7 22. Qxa7 Rxa7 23. Nh4 g6 {[#]} (23... Ne7 $11 {keeps the balance.}) 24. f4 (24. Nxg6 $1 $16 {[%mdl 512]} fxg6 25. Rd6 {[%mdl 64] Double Attack}) 24... Bc8 (24... exf4 $11 25. gxf4 Ne7) 25. Rd6 Rc7 (25... Nb8 $14) 26. f5 $1 $36 {[%mdl 2048] White is in control.} g5 27. Nf3 f6 28. Nh2 $1 Kg7 29. Ng4 Rff7 30. Kf2 a5 31. R1d5 (31. Bf3 $142) 31... b4 (31... Na7 $16) 32. Rc5 $18 bxc3 33. bxc3 Bb7 34. Rxc4 ({Better is} 34. a4 $18) 34... h5 $16 35. Ne3 Nb8 (35... Rcd7 $16 36. Rxd7 (36. Rcxc6 Bxc6 37. Rxc6 Rd2+ 38. Ke1 Rxa2 $16) 36... Rxd7) 36. Bf1 Rxc4 $2 (36... Rcd7 37. Rxd7 Rxd7) 37. Bxc4 $18 (37. Nxc4 Bxe4 38. Rb6 Nd7 $16) 37... Rc7 38. Rd8 (38. Bd5 $142) 38... Nd7 39. Bd5 Nc5 40. Rg8+ Kh7 {[#]} 41. Rg6 $2 ({White should play} 41. Rb8 $1 $16) 41... Bxd5 (41... Nxe4+ $11 42. Bxe4 Bxe4) 42. Nxd5 $16 (42. exd5 $6 Ne4+ 43. Kf3 Nxc3 $14) 42... Nxe4+ $2 $11 {[%mdl 12288] Endgame KRN-KRN} (42... Rc6 $16 {was necessary.} 43. Kf3 Nd7) 43. Ke3 $18 Rc4 44. g4 (44. Nxf6+ Nxf6 45. Rxf6 Rxc3+ 46. Ke4 Rxg3 $11) 44... hxg4 (44... h4 {was worth a try.} 45. a3 (45. Nxf6+ Nxf6 46. Rxf6 Rxc3+ 47. Ke4 Rxh3 $16) 45... Kh8) 45. hxg4 Ra4 $2 (45... Kh8 46. a3 (46. Nxf6 Nxf6 47. Rxf6 Rxg4 $16) 46... Kh7) 46. a3 (46. Nb6 $142) 46... Kh8 (46... Rc4 $142 47. a4 (47. Nxf6+ Nxf6 48. Rxf6 Rxc3+ 49. Ke4 Rxa3 $11) 47... Kh8) 47. Nxf6 $2 (47. Nb6 $18) 47... Nxf6 $11 48. Rxf6 {And now Rg6 would win.} Rxg4 $18 {KR-KR} 49. Re6 Ra4 {[#]} (49... Kg7 $11) 50. Re7 ({Of course not} 50. Rxe5 Kg7 $11) (50. Rg6 $1 $16) 50... Kg8 $11 {The position is equal.} 51. f6 Kf8 52. Rxe5 Rxa3 53. Kd4 Kf7 54. Rxg5 Kxf6 {Accuracy: White = 53%, Black = 26%.} 1/2-1/2

[Event "86th BRA-ch 2019"]
[Site "Natal"]
[Date "2020.01.15"]
[Round "3.6"]
[White "Fier, Alexandr"]
[Black "Supi, Luis Paulo"]
[Result "1/2-1/2"]
[ECO "A45"]
[WhiteElo "2528"]
[BlackElo "2577"]
[Annotator "TA"]
[PlyCount "92"]
[EventDate "2020.01.05"]
[EventType "k.o."]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,92,-15,-12,-18,0,-6,4,0,5,0,0,2,9,12,25,0,-4,-6,6,-18,0,-16,0,-19,-30,-30,-25,-23,-21,-37,-30,-73,-14,-14,-14,-14,-14,-14,-14,-14,-14,-14,-14,-15,-17,-18,-4,-15,0,0,0,0,0,0,0,0,0,0,7,0,7,7,7,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. Bg5 g6 3. Bxf6 exf6 4. g3 d5 5. Bg2 c6 6. e3 {A45: Trompowsky Attack} Bd6 (6... h5 7. h4 f5 8. Ne2 Nd7 9. Nd2 Nf6 10. O-O Bd6 11. c4 dxc4 12. Nxc4 Be6 13. Nxd6+ Qxd6 {½-½ (48) Jobava,B (2604)-Indjic,A (2619) Moscow 2019}) 7. Ne2 Nd7 8. Nd2 f5 9. c4 dxc4 10. Nxc4 Bb4+ 11. Nc3 Nb6 12. Nd2 $146 ({Predecessor:} 12. Nxb6 axb6 13. Qb3 Bxc3+ 14. Qxc3 {½-½ (51) Teske,H (2514)-Plischki,S (2386) Teplice 2013}) 12... O-O 13. O-O Bd6 14. Rb1 Qe7 15. Na4 Be6 16. Nxb6 axb6 17. a3 Rfd8 18. Qc2 b5 19. Rfd1 Bc7 20. Nb3 {[#]} Bd5 (20... f4 $1 $17 {[%mdl 512]} 21. Rbc1 (21. exf4 Bf5) 21... fxe3 22. fxe3 Bb6) 21. Nc5 $11 {The position is equal.} Bxg2 22. Kxg2 Bd6 23. Rbc1 h5 24. h4 Rac8 25. Qe2 Kg7 26. Qf3 Rc7 27. Nd3 Rdc8 28. Rc3 b4 29. axb4 Bxb4 30. Rc4 Bd6 31. Rdc1 Qe6 32. b4 Qe7 33. Nc5 Qe8 34. Nd3 Qe7 35. Kg1 Kg8 36. Rb1 Ra8 37. Kg2 Ra3 38. Nc5 Ra2 (38... Qe8 {is interesting.} 39. Rd1 b6 40. Nd3 Rb3 41. Rc2 Qc8) 39. b5 cxb5 40. Rxb5 Bxc5 41. Rcxc5 Rxc5 42. dxc5 {KQR-KQR} Rc2 43. Rxb7 Qxc5 44. Rb8+ Kg7 45. Qa8 Qc6+ 46. Qxc6 Rxc6 {Accuracy: White = 69%, Black = 57%.} 1/2-1/2

[Event "86th BRA-ch 2019"]
[Site "Natal"]
[Date "2020.01.16"]
[Round "3.7"]
[White "Supi, Luis Paulo"]
[Black "Fier, Alexandr"]
[Result "0-1"]
[ECO "B31"]
[WhiteElo "2577"]
[BlackElo "2528"]
[Annotator "TA"]
[PlyCount "168"]
[EventDate "2020.01.05"]
[EventType "k.o."]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,168,19,19,15,22,14,22,21,33,36,54,35,33,39,37,36,56,45,69,69,69,69,69,69,69,69,69,69,69,52,68,20,32,7,15,15,24,26,88,95,101,109,112,83,146,154,269,98,93,74,236,107,136,137,134,129,130,137,114,52,39,8,8,0,8,4,6,0,8,8,41,0,0,0,8,0,7,0,6,0,5,0,8,0,41,-14,-14,-10,0,0,30,29,69,69,71,8,8,0,8,0,0,0,35,55,145,146,273,188,177,188,188,188,178,124,124,-16,582,582,575,575,568,568,568,560,560,560,546,546,524,0,539,0,524,517,510,510,510,495,473,406,473,412,404,72,72,72,72,-14,-14,-14,-14,-18,-18,-22,-22,-29986,-29987]} 1. e4 c5 2. Nf3 Nc6 3. Bb5 Nf6 4. Nc3 g6 5. Bxc6 dxc6 6. h3 Bg7 7. d3 Qc7 8. Be3 {B31: Sicilian: 2...Nc6 3 Bb5 g6} b6 9. Qd2 e5 (9... h6 10. O-O e5 11. Nh2 Nh5 12. Ne2 Be6 13. b4 cxb4 14. Qxb4 Nf4 15. Rfe1 Bd7 {0-1 (68) Visakh,N (2509)-Adly,A (2611) Dubai 2019}) 10. Bh6 {The position is equal.} Bxh6 11. Qxh6 {And now Qg7 would win.} Qe7 12. O-O Nh5 $146 ({Predecessor:} 12... Nd7 13. Nd2 Qf8 14. Qe3 Qe7 15. f4 O-O {0-1 (65) Hall,B (2044)-Melekhina,A (2263) Los Angeles 2011}) 13. Ne2 f6 14. a4 a5 15. Nd2 Qg7 16. Qxg7 Nxg7 17. Nc4 Rb8 18. f4 exf4 $1 19. Rxf4 Ke7 20. Raf1 Rf8 21. Rh4 h5 22. Rhf4 (22. Nf4 {with more complications.} g5 23. Ng6+ Kf7 24. Nxf8 Kxf8 25. Rxf6+ Kg8 26. Rxh5 Nxh5 27. Rg6+) 22... Be6 23. b3 Bxc4 24. bxc4 Ne6 25. R4f2 b5 (25... h4 $11 {remains equal.}) 26. cxb5 cxb5 27. axb5 Rxb5 28. Nc3 Rb2 (28... Rb7 $142) 29. Nd5+ $16 Kd8 (29... Kd6 $16 {was called for.}) 30. Rxf6 $2 (30. Ra1 $1 $18) 30... Rxf6 31. Rxf6 $18 {[%mdl 4096] Endgame KRN-KRN} Nd4 $2 {[#]} (31... Kd7 $16) 32. Rxg6 (32. e5 $1 $18 {and the rest is easy.}) 32... Rxc2 33. Ra6 Ne2+ 34. Kf1 Ng3+ 35. Ke1 c4 36. dxc4 (36. Ra8+ $16 Kd7 37. Nb6+ {[%mdl 64] Double Attack} (37. Rxa5 cxd3 38. Nf4 Nxe4 $14) 37... Ke7 38. Ra7+ (38. dxc4 Rxg2 39. Rxa5 Ke6 $14) (38. Rxa5 cxd3 39. Nd5+ Kf7 $11) 38... Kf8 39. Nxc4) 36... Nxe4 $14 37. Ne3 Ra2 38. Re6 Nc5 39. Rd6+ Kc7 40. Rd5 (40. Rh6 {looks sharper.} a4 41. Kd1 Ne4 42. Nc2 Nc3+ 43. Kd2) 40... Kc6 41. Rxh5 {Threatening Kd1.} a4 42. Rh6+ Kb7 43. Rh7+ Kc6 44. Rh6+ Kb7 45. Rh7+ Kc6 46. Rh6+ Kb7 47. Rh7+ Kc6 48. Ra7 a3 49. g4 (49. Kd1 $14 Kb6 50. Ra8) 49... Kb6 $11 50. Ra8 Kb7 51. Ra5 Nd3+ (51... Kb6 $5 {[%cal Rb6a5]} 52. Ra8 Na6 $11) 52. Kd1 {aiming for Nc2.} Kb6 53. Rb5+ Kc6 {[#]} 54. Rb3 (54. Nc2 $1 $16 {Rb3 is the strong threat.} Nb2+ 55. Kc1 Nxc4 56. Rb8 (56. Nd4+ Kd6 $11)) 54... Nc5 55. Rb8 {Hoping for Rc8+.} Rh2 56. Ra8 a2 57. Nc2 Nd3 58. Rxa2 Rh1+ ({Black should play} 58... Rxh3 $14 59. g5 Ne5) 59. Kd2 $16 Nc5 (59... Ne5 $16 {might work better.}) 60. Ra3 Rh2+ 61. Kc1 Ne4 62. Re3 Nd6 63. Rg3 (63. Na3 $18) 63... Nxc4 {intending ...Rh1+.} 64. g5 ({Better is} 64. Nd4+ $16 Kd5 65. Nf3 Rh1+ 66. Ng1) 64... Ne5 $2 {[%mdl 8192]} (64... Rh1+ $11 65. Ne1 Rxe1+ 66. Kc2 Re8) 65. g6 $18 Nxg6 66. Rxg6+ {KRN-KR} Kd5 67. Rg3 Ke4 68. Rc3 Kf4 69. Nd4 Ke4 70. Ne6 Kf5 71. Nd4+ Ke4 72. Nc2 Kf4 $1 73. Ne1 Ke4 74. Kd1 Ra2 75. Rc2 Ra3 76. Re2+ Kf5 77. Rf2+ Kg6 78. Rg2+ $2 (78. Rf3 $18 {is more deadly.} Ra4 79. Nc2) 78... Kh5 $16 79. Rh2 {Threatens to win with Ng2.} Kh4 80. Ng2+ (80. Rf2 $16) 80... Kg3 $11 81. Rh1 Ra1+ 82. Kd2 Rxh1 83. Ne3 Rxh3 84. Kd3 $2 {[%mdl 8192]} (84. Nd5 $11) 84... Kf4 {Accuracy: White = 32%, Black = 41%.} 0-1

[Event "86th BRA-ch 2019"]
[Site "Natal"]
[Date "2020.01.16"]
[Round "4.1"]
[White "Fier, Alexandr"]
[Black "Diamant, Andre"]
[Result "1/2-1/2"]
[ECO "B34"]
[WhiteElo "2528"]
[BlackElo "2547"]
[Annotator "TA"]
[PlyCount "109"]
[EventDate "2020.01.05"]
[EventType "k.o."]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,109,39,44,41,45,47,54,52,49,25,25,32,31,27,42,45,43,50,45,42,43,42,43,37,38,34,35,35,37,21,33,12,11,12,15,8,52,17,55,33,26,0,25,13,13,0,10,0,0,0,0,0,0,-8,0,0,-19,-13,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-8,11,11,11,11,11,11,11,11,11,11,11,0,0,0,0,0]} 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Nxc6 dxc6 7. Qxd8+ Kxd8 8. Bc4 Ke8 9. e5 {B34: Sicilian: Accelerated Dragon with 5 Nc3: sidelines} (9. Bf4 Nd7 10. e5 Bg7 11. e6 fxe6 12. Bxe6 Rf8 13. Bd2 Nc5 14. Bxc8 Rxc8 15. f3 Rd8 16. O-O-O Bxc3 17. Bxc3 Rxd1+ 18. Rxd1 {½-½ (46) Leko,P (2708)-Ivanchuk,V (2720) Reykjavik 2015}) 9... Nd7 10. e6 fxe6 11. Bxe6 {White is slightly better.} Bg7 12. Bd2 Nc5 13. Bxc8 Rxc8 14. O-O-O Kf7 $146 ({Predecessor:} 14... Ne6 15. Rhe1 Kf7 16. Re4 Bf6 {0-1 (61) Tomczak,J (2583)-Janik,I (2422) Zgierz 2018}) 15. Be3 Ne6 16. Ne4 Rhd8 17. c3 b6 18. h4 h5 19. Rxd8 (19. Kc2 {looks sharper.} Rd5 20. Rhe1 Rcd8 21. Rd2 Bf6 22. g3) 19... Rxd8 20. Kc2 Bf6 21. g3 Ng7 22. a4 Nf5 23. Re1 Nxe3+ 24. Rxe3 $11 {[%mdl 4096] Endgame KRB-KRN} Rd5 25. Re1 a5 26. b4 b5 27. axb5 ({Reject} 27. bxa5 bxa4 28. Rb1 Rxa5 $11) 27... Rxb5 28. Kb3 Rd5 29. Kc4 axb4 {The position is equal.} 30. cxb4 e5 31. Kb3 Rd3+ 32. Ka4 {With the idea Rc1.} Be7 33. Rc1 Rd4 34. Nc5 Rd2 35. Ka5 Rxf2 36. Kb6 Rf6 37. Ne4 Re6 38. Kc7 Bxb4 39. Ng5+ {[%mdl 64] [#] Double Attack} Ke7 40. Nxe6 Kxe6 41. Kxc6 {KR-KB} Bd2 42. Rd1 Be3 43. Rd8 Bd4 44. Rf8 Ke7 45. Rf1 Ke6 46. Kb5 {And now Kc4 would win.} Kd5 {[#] White must now prevent ...e4.} 47. Rf8 e4 {aiming for ...e3.} 48. Rd8+ Ke5 49. Kc4 {White wants to mate with Rd5+.} Bg1 50. Re8+ Kf5 51. Kd5 e3 52. Re4 {[%csl Gg3][%cal Re4f4]} Kf6 53. Rf4+ Kg7 54. Re4 {Ke5 is the strong threat.} Bf2 55. Kc4 {Accuracy: White = 46%, Black = 72%.} 1/2-1/2

[Event "86th BRA-ch 2019"]
[Site "Natal"]
[Date "2020.01.17"]
[Round "4.2"]
[White "Diamant, Andre"]
[Black "Fier, Alexandr"]
[Result "1/2-1/2"]
[ECO "B31"]
[WhiteElo "2547"]
[BlackElo "2528"]
[Annotator "ChessBase"]
[PlyCount "71"]
[EventDate "2020.01.05"]
[EventType "k.o."]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. O-O Bg7 5. Re1 e5 6. Bxc6 dxc6 7. d3 Qc7 8. h3 Nf6 9. Be3 b6 10. Qd2 Nh5 11. Nc3 h6 12. a3 g5 13. b4 cxb4 14. axb4 Nf4 15. d4 Ng6 16. b5 O-O 17. bxc6 Qxc6 18. Nd5 f6 19. Ra3 Rf7 20. Rea1 f5 21. Nxe5 Nxe5 22. dxe5 Bxe5 23. Bd4 Bxd4 24. Qxd4 Bb7 25. Rxa7 Rxa7 26. Rxa7 fxe4 27. c4 b5 28. Qxe4 bxc4 29. Rxb7 Qxb7 30. Qg6+ Kf8 31. Qxh6+ Ke8 32. Qxg5 Qb1+ 33. Kh2 Qb8+ 34. g3 Rxf2+ 35. Kg1 Qa7 36. Qe3+ 1/2-1/2

[Event "86th BRA-ch 2019"]
[Site "Natal"]
[Date "2020.01.18"]
[Round "4.3"]
[White "Fier, Alexandr"]
[Black "Diamant, Andre"]
[Result "1-0"]
[ECO "D40"]
[WhiteElo "2528"]
[BlackElo "2547"]
[Annotator "TA"]
[PlyCount "87"]
[EventDate "2020.01.05"]
[EventType "k.o."]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,87,20,23,18,22,26,38,38,37,34,34,21,53,39,39,54,52,25,57,56,93,80,95,105,95,100,104,99,92,93,129,136,149,140,107,103,366,366,352,344,341,351,377,361,451,314,372,404,400,310,312,313,318,318,316,310,318,318,317,316,316,316,316,316,308,310,354,340,594,591,29992,29993,29993,29994,29994,29991,29995,29996]} 1. c4 e6 2. Nf3 d5 3. d4 Nf6 4. Nc3 c5 5. e3 a6 6. cxd5 exd5 7. g3 {D40: Queen's Gambit Declined: Semi-Tarrasch with 5 e3} (7. Be2 Nc6 8. O-O cxd4 9. Nxd4 Bd6 10. b3 O-O 11. Bb2 Re8 12. Rc1 Bc7 13. Nxc6 bxc6 14. Ba3 h5 15. Bf3 Ng4 16. g3 Bf5 17. Ne2 Ne5 18. Bg2 h4 19. Nd4 Bd7 {1-0 (38) Cori,J (2686)-Vidit,S (2703) Biel 2019}) 7... Nc6 8. Bg2 Bd6 $146 ({Predecessor:} 8... Be7 9. O-O O-O 10. dxc5 {1-0 (50) Ladva,O (2500)-Arnaudov,P (2452) Porto Carras 2018}) 9. dxc5 {White is slightly better.} Bxc5 10. O-O O-O 11. b3 d4 12. Na4 Ba7 13. exd4 Nxd4 14. Bb2 {[%cal Rb2d4]} Nc6 15. Ne5 Nd4 16. Rc1 $36 {[%mdl 2048] Keeping Black busy.} Re8 17. Nc5 Rxe5 18. Qxd4 (18. Bxd4 $6 Bg4 $11) 18... Qxd4 19. Bxd4 Re2 20. Rfd1 Bg4 21. h3 ({Don't do} 21. Bxb7 Rb8 $14) (21. Nxb7 Bxd4 22. Rxd4 Rxa2 $14) 21... Bh5 22. Bxb7 Rb8 23. g4 Bxg4 $2 {[%mdl 8192] [#]} (23... Bxc5 $16 24. Rxc5 (24. Bxc5 Bxg4 25. hxg4 Rxb7 $14) 24... Bxg4) 24. hxg4 $18 Bxc5 25. Bf3 ({Not} 25. Rxc5 Rxb7 26. g5 Ne8 $16) (25. Bxa6 Rxa2 26. Rxc5 Rxa6 $14) 25... Bxd4 26. Bxe2 Bb6 27. Kg2 a5 28. Kf3 h5 29. gxh5 Nxh5 30. Ba6 g5 31. Rc8+ Rxc8 32. Bxc8 {[%mdl 4096] Endgame KRB-KBN} Nf4 33. Rd6 Bc5 34. Ra6 Bb4 35. Bf5 Kg7 36. Kg4 f6 37. Ra7+ Kf8 38. Be4 Ne2 39. Kf5 Nc3 $2 {[#]} (39... Bc3 {is a better defense.} 40. Rc7 Bd4) 40. Bc6 Nxa2 41. Kxf6 {[%cal Ra7a8] White mates.} Bc3+ 42. Kg6 Nb4 43. Rf7+ Kg8 44. Re7 {Accuracy: White = 90%, Black = 37%.} 1-0

[Event "86th BRA-ch 2019"]
[Site "Natal"]
[Date "2020.01.19"]
[Round "4.4"]
[White "Diamant, Andre"]
[Black "Fier, Alexandr"]
[Result "0-1"]
[ECO "B40"]
[WhiteElo "2547"]
[BlackElo "2528"]
[Annotator "ChessBase"]
[PlyCount "48"]
[EventDate "2020.01.05"]
[EventType "k.o."]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. g3 d5 4. exd5 exd5 5. d4 Nc6 6. Bg2 Nf6 7. O-O Be7 8. Nc3 O-O 9. h3 Ne4 10. Ne2 Be6 11. Be3 c4 12. Nf4 Bd6 13. Re1 Qd7 14. Nxe6 fxe6 15. Ne5 Bxe5 16. dxe5 Qf7 17. Bxe4 dxe4 18. Bc5 Rfd8 19. Qe2 Nxe5 20. Red1 Rd5 21. Bd6 Qf3 22. Qe1 Qxd1 23. Qxd1 Rxd1+ 24. Rxd1 Rd8 0-1

