[Event "MAGISTRAL OSASCO 1014"]
[Site "Sao Paulo"]
[Date "2024.03.22"]
[Round "5.1"]
[White "Di Berardino, Diego Rafael"]
[Black "Cubas, Jose Fernando"]
[Result "1/2-1/2"]
[ECO "E97"]
[WhiteElo "2497"]
[BlackElo "2417"]
[Annotator "STOCKFISH 16"]
[PlyCount "60"]
[EventDate "2024.03.18"]
[EventCountry "BRA"]
{[%evp 23,60,57,60,48,77,74,78,76,131,126,136,104,166,163,166,14,15,-24,11,7,5,
5,6,6,6,6,8,8,5,7,8,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5.
Nf3 O-O 6. Be2 e5 7. O-O Nc6 8. d5 Ne7 9. b4 a5 10. Ba3 axb4 11. Bxb4 b6 12. a4
{[%CAl Ba2a4,Ba4a5][%mdl 32]} Ne8 13. h3 {E97: King's Indian: Classical Main
Line (6...e5 7 0-0 Nc6): 8 Be3 and 8 d5 Ne7, not 9 Ne1.} Bh6 $146 ({RR} 13...
Bd7 14. Bd3 f5 15. Re1 f4 16. Be2 Bf6 17. a5 bxa5 18. Bxa5 g5 19. Nd2 Ng6 20.
Bg4 Ng7 21. Bxd7 {[%eval 55,15]} ({White should play} 21. c5 $16 {[%eval 116,9]
}) 21... Qxd7 22. Nb5 Bd8 $1 23. Qg4 Qf7 24. Ra3 {[%eval 4,10]} ({White should
try} 24. c5 $16 {[%eval 73,13]}) 24... Nh4 (24... h5 $5 {[%CAl Rh5g4]} 25. Qe2
Qd7 $14) 25. Rea1 h5 26. Qe2 Ne8 27. Nf3 {[%eval -7,8]} (27. g3 $14 {[%eval 67,
15]} Ng6 28. g4) 27... Nxf3+ 28. Qxf3 {Cox,J (2263)-Abhyuday,S (2167) England
ENG 2024 1/2-1/2 (44)}) ({Predecessor:} 13... Kh8 14. Re1 f5 15. Bd3 Nf6 16.
Ra3 c5 17. dxc6 Nxc6 18. Rb3 Nxb4 19. Rxb4 Nd7 20. Bc2 Nc5 21. Qd2 Bb7 22. Qe3
Bc6 23. Reb1 {1/2-1/2 (24) Yamaliev,V (2460)-Koo,O (2471) ICCF email 2021}) 14.
Re1 f5 15. a5 {White is better.} Nf6 $6 {[#] Inaccuracy. bxa5 was best.} (15...
bxa5 16. Bxa5) 16. axb6 $1 Rxa1 17. Qxa1 {aiming for bxc7.} fxe4 {[%eval 166,8]
[#]} (17... Nxe4 $16 {[%eval 104,10]} 18. Qa3 c5) 18. bxc7 $1 $18 Qxc7 19. Qa3
$2 {[%eval 14,7] Mistake. Nxe5 was best.} (19. Nxe5 Qb6 {[%eval 164,10]} (19...
e3 $1 $11 {[%eval 21,6]} 20. f3 Qd8) 20. Rb1 e3 21. f3 Bf5 22. Rb2 Nh5 23. Nb5
dxe5 24. Bxe7 Nf4 25. Bxf8 {[%eval 75,8]} (25. Kh1 $18 {[%eval 164,8] has
better winning chances.}) 25... Bxf8) (19. Nb5 $18 {[%eval 166,12]} Qd8 20.
Nxd6 (20. Bxd6 exf3 21. Bxf3 e4 $14) 20... exf3 21. Bxf3 (21. Nxc8 Nxc8 22.
Bxf3 Nb6 $16)) 19... Nf5 $11 20. Nh2 $6 {Inaccuracy. Nb5 was best.} (20. Nb5
Qd8 21. Nxd6 exf3 22. Bxf3 Nxd6 23. Bxd6 e4 24. Be7 Qc7 25. Bxe4 Qxc4 26. Bd3
Qd4 $1) (20. Nb5 $5 {[%CAl Rb5c7]} Qd8 21. Nh2 $14) 20... Bd2 $6 {Inaccuracy.
e3 was best.} (20... e3 21. f3 Qe7 22. Bd3 Nh5 23. Ng4 Qh4 24. Nxh6+ Nxh6 25.
Ne4 Bxh3 26. Bf1 Bf5 27. Rxe3) (20... e3 $5 {[%CAl Re3f2]} 21. f3 Bf4 $14) 21.
Nb5 {The position is equal.} Bxb4 22. Qxb4 Qb6 23. Bg4 e3 24. fxe3 Nxe3 25.
Qxd6 Nxc4+ 26. Qxb6 Nxb6 27. Rxe5 Nbxd5 28. Nd6 Bxg4 29. Nxg4 Nxg4 30. Rxd5
Rf1+ {Precisão Chessbase: Brancas 81% Pretas 71%. Precisão Lichess.org:
Brancas 94% Pretas 95%. Precisão Chess.com: Brancas 95.6% Pretas 96.1%.}
1/2-1/2
[Event "MAGISTRAL OSASCO 1014"]
[Site "Sao Paulo"]
[Date "2024.03.22"]
[Round "5.2"]
[White "De Carvalho, Vitor Augusto Ponci"]
[Black "Do Valle Cardoso, Lucas"]
[Result "1-0"]
[ECO "B40"]
[WhiteElo "2134"]
[BlackElo "2406"]
[Annotator "STOCKFISH 16"]
[PlyCount "103"]
[EventDate "2024.03.18"]
[EventCountry "BRA"]
{[%evp 10,103,45,41,64,65,66,33,62,14,32,32,43,0,39,21,43,-39,8,0,2,0,12,21,85,
26,13,-114,-119,-214,-220,-215,-212,-252,-248,-274,-271,-240,85,-271,-271,-270,
-274,-282,-268,-271,-271,-294,-217,-271,-244,-271,-123,-123,-123,-118,-117,
-111,-111,-109,48,0,0,-5,136,145,177,204,216,205,204,230,281,281,281,288,284,
280,358,385,310,260,395,412,300,297,553,556,662,660,709,710,29991,29988,29993,
29994]} 1. e4 c5 2. Nf3 e6 3. b3 Nc6 4. Bb2 d6 5. d4 cxd4 6. Nxd4 e5 {B50:
Sicilian: 2...d6, Miscellaneous.} 7. Nxc6 bxc6 8. g3 ({RR} 8. Bd3 Ne7 (8... Be7
$14) 9. Qf3 Ng6 10. Bc4 (10. Nd2 $16) 10... Be6 (10... Qf6 $11) 11. Nd2 (11.
Bxe6 $16 fxe6 12. Nd2) 11... Qd7 12. Bxe6 Qxe6 13. h4 Be7 14. h5 Nf8 15. O-O-O
Nd7 16. Nc4 Nb6 17. Ne3 Bg5 18. Kb1 Bxe3 19. Qxe3 h6 20. Qg3 O-O-O 21. f4 exf4
22. Qxg7 Rhg8 {Harikrishna,P (2704)-Fier,A (2572) Czechia 2013 1-0 (39)}) ({RR
} 8. c4 Nf6 9. Nc3 Ba6 10. Be2 Be7 11. c5 Bxe2 12. Qxe2 dxc5 13. O-O Qc7 14.
Rac1 O-O 15. Na4 Nd7 16. Rc2 Rab8 17. Rfc1 Rb5 18. Rd1 Re8 19. Ba3 h6 20. g3
Kh8 21. h4 Bf8 22. Qe3 (22. Rcd2 $16 Nb6 23. Nxb6 Rxb6 24. Rd7) 22... Rd8 {
Ghazarian,K (2473)-Weng,W (1808) Mexico City MEX 2023 1-0 (46)}) 8... h5 $146 {
White is slightly better.} ({RR} 8... Nf6 9. Bg2 Be7 10. O-O O-O 11. c4 c5 (
11... h5 $11) 12. f4 Qc7 13. Nc3 Bb7 14. Qd3 Rad8 15. Rad1 a6 16. Rd2 Nd7 17.
Bh3 Nb8 18. Nd5 Bxd5 19. cxd5 Bf6 20. fxe5 Bxe5 21. Bxe5 dxe5 22. Rc1 Nc6 23.
Qxa6 {Dinger,F (2391)-Ambarcumova,K (2274) Pardubice 2009 1/2-1/2 (39)} (23. b4
$1 $18)) ({RR} 8... Nf6 9. Bg2 Bg4 10. Qd3 Be7 11. c4 O-O 12. Nc3 Qc8 13. h3
Be6 14. O-O-O ({Better is} 14. Qe2 $14) 14... Nd7 15. f4 f5 $2 (15... Nc5 $15 {
stays ahead.} 16. Qc2 Qc7) 16. exf5 $1 Bxf5 17. Qf3 $1 {[%CAl Rf3c6]} d5 18.
Nxd5 $2 ({Only move:} 18. cxd5 $18 e4 19. Qe2) 18... cxd5 19. Qxd5+ Kh8 20.
Qxa8 $2 (20. g4 $17 Nb6 21. Qxe5) 20... Qa6 $1 21. Qc6 $2 (21. Qxf8+ Nxf8 22.
g4 Qxa2 23. gxf5) 21... Qxa2 22. Be4 Bxe4 $2 (22... Nc5 $1 $19 {and Black
stays clearly on top.} 23. Bxf5 Nxb3+ 24. Kc2 Ba3) 23. Qxe4 {Zarnicki,P (2385)
-Cid,M (2285) Buenos Aires 1989 0-1}) ({RR} 8... Nf6 9. Bg2 Bg4 10. Qd3 Be7 11.
O-O Qd7 12. c4 Bh3 13. Rd1 Bxg2 (13... h5 $11 14. Bf3 Bg4) 14. Kxg2 Qe6 15. Nc3
O-O 16. Rd2 Rad8 17. Rad1 Ne8 18. Qe3 Rd7 19. c5 Rb7 (19... f5 $16) 20. Na4 Qg6
21. Rd3 (21. cxd6 $18 Nxd6 22. Nc5) 21... Rb4 (21... f5 $16) 22. f3 f5 23. exf5
$1 {Maurizzi,M (1824)-Piliposyan,R (1701) Prague 2016 0-1 (33)}) ({Predecessor:
} 8... Nf6 9. Bg2 Be7 10. c4 O-O 11. O-O Bg4 12. Qd2 Qc8 13. Nc3 Rd8 14. Rae1
h5 {1-0 (90) Kozionov,K (2440)-Zakhartsov,V (2470) Loo 2017}) 9. Nc3 h4 10. Bg2
Nf6 11. Qd2 h3 12. Bf3 Be6 13. Nd1 (13. O-O-O $14) 13... g5 14. O-O $1 g4 $36 {
[%mdl 2048] Black fights for an advantage.} 15. Bh1 Qb6 16. Ne3 O-O-O $6 {
Inaccuracy. Rd8 was best.} (16... Rd8) (16... Rd8 $11) 17. c4 ({White should
play} 17. Qc3 $16) 17... Bh6 $1 $11 18. Rfd1 $2 {Mistake. Bc3 was best.} (18.
Bc3 Rd7) (18. Rae1 $11) 18... Bxe3 $1 $17 19. Qxe3 (19. fxe3 $17 Rd7 20. Bc3)
19... Qxe3 $19 20. fxe3 c5 21. Kf2 Rd7 22. Bc3 Nh7 23. Ke2 Kd8 $4 {Blunder. f6
was best.} (23... f6) (23... f6 $19 24. Ba5 Kb7) 24. Rd2 $4 {Blunder. Rxd6 was
best.} (24. Rxd6 $1 Re8) (24. Rxd6 $1 $16 {is forced if you want to stay
better.} Rxd6 25. Bxe5 {[%mdl 64] Double Attack} Bxc4+ 26. bxc4) 24... Ke7 25.
Kd3 Ng5 26. Rf1 Rh6 27. Ba5 f6 28. Rdf2 Bg8 29. Rd2 Bh7 30. Rf5 d5 $4 {Blunder.
Bg6 was best.} (30... Bg6 31. Rdf2 Bf7 32. a3 a6 33. Rb2 Be6 34. Rf1 Rb7 35. b4
Rh8 36. Rc2 Rc8 37. Rfc1) ({Weaker is} 30... Bxf5 31. exf5 Nf3 32. Bxf3 $15) (
30... Rb7 $19 31. Rf1 Rd7) 31. cxd5 $17 Bxf5 32. exf5 Rh8 33. Rc2 Rc8 $1 34.
Rc4 Nf3 $2 {Mistake. Rd6 was best.} (34... Rd6 $1) (34... Rd6 $1 $17 35. Rxg4
Ra6) 35. Bxf3 $6 {Inaccuracy. Rxg4 was best.} (35. Rxg4 Nxh2) 35... gxf3 $14 {
[%mdl 4096] Endgame KRR-KRB} 36. e4 $1 Rb7 $2 {Mistake. Rd6 was best.} (36...
Rd6 $1 37. Ra4 (37. Bb4 $1 $11 {[%mdl 512] remains equal.} Ra6 (37... cxb4 38.
Rxc8) 38. Bxc5+ Rxc5 39. Rxc5 Rxa2 40. Ke3)) (36... Rd6 $1 $11 {keeps the
balance.}) 37. Ke3 $16 Kd6 38. Kxf3 Rg8 39. Bd2 a5 40. Bxa5 Ra8 41. b4 cxb4 42.
Bxb4+ Kd7 43. a3 Rc8 44. Rxc8 Kxc8 $18 {[#] KR-KB} 45. g4 $1 Kd7 {[#]} (45...
Rc7 $142 46. g5 Kd7) 46. g5 $1 fxg5 47. Kg4 $1 {[%csl LRg5,LRh3]} Ke8 $2 (47...
Rb6 {was worth a try.} 48. Kxg5 Rb8) 48. Kxg5 Rg7+ $6 {Inaccuracy. Kf7 was
best.} (48... Kf7 49. Bc3) 49. Kf6 Rg2 {[#] Black wants to play ...Kd7.} 50.
Ke6 $1 Rxh2 $6 {Inaccuracy. Rg7 was best.} (50... Rg7 51. d6) 51. d6 Rd2 $6 {
Checkmate is now unavoidable. Kd8 was best.} (51... Kd8 52. Ba5+) 52. Bxd2 {
Precisão Chessbase: Brancas 60% Pretas 46%. Precisão Lichess.org: Brancas
91% Pretas 87%. Precisão Chess.com: Brancas 87.0% Pretas 76.2%.} 1-0
[Event "MAGISTRAL OSASCO 1014"]
[Site "Sao Paulo"]
[Date "2024.03.22"]
[Round "5.3"]
[White "Quintiliano, Renato R."]
[Black "Valderrama Quiceno, Esteban Alb"]
[Result "1-0"]
[ECO "E00"]
[WhiteElo "2483"]
[BlackElo "2428"]
[Annotator "STOCKFISH 16"]
[PlyCount "161"]
[EventDate "2024.03.18"]
[EventCountry "BRA"]
{[%evp 15,161,26,22,22,22,25,28,32,33,27,34,30,26,17,20,17,20,3,8,3,4,2,2,-20,
-6,-17,-1,-3,-4,-59,-9,-23,33,34,88,79,116,118,141,82,90,90,90,82,101,101,105,
98,100,100,95,94,89,88,98,71,73,63,67,38,52,7,10,9,7,7,8,8,11,14,10,9,10,0,9,6,
7,0,0,0,2,2,7,0,0,0,4,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,2,0,0,
0,132,132,126,126,132,140,139,126,134,128,140,132,128,136,930,924,3661,715,
3576,3792,3252,3252,3579,3579,3576,3579,3579,3579,3571,3578,3576,3576]} 1. d4
Nf6 2. c4 e6 3. g3 Bb4+ 4. Nd2 O-O 5. Bg2 c5 6. a3 Bxd2+ 7. Qxd2 cxd4 8. Nf3 d5
9. cxd5 {E01: Catalan: Early deviations.} Qxd5 10. Qxd4 Nc6 11. Qxd5 {White
has an edge.} Nxd5 12. O-O b6 13. Bd2 Ba6 14. Rac1 Rac8 15. Rfe1 Rfd8 $146 ({
Predecessor:} 15... Na5 16. Bxa5 bxa5 17. Nd4 Ne7 18. e3 Bc4 19. Rc3 e5 20. Nf3
Nd5 21. Rxc4 Rxc4 22. Nxe5 Nxe3 23. Rxe3 Rc1+ 24. Bf1 h6 25. Nd3 {1-0 (25)
Haba,P (2440)-Felix,V (2250) Czech Republic 1996}) 16. Bf1 Nde7 17. Bc3 f6 18.
Bh3 Kf7 19. b4 Bb5 20. Bb2 h5 21. e4 Ng6 22. Kg2 Ke7 (22... Nf8 $5 {[%CAl
Rg7g5]} 23. Kg1 g5 $15) 23. e5 f5 (23... Ngxe5 $11 24. Bxe5 fxe5) 24. Kg1 $14
Rd7 25. Bg2 $36 {[%mdl 2048] aiming for Nd4! Keeping Black busy.} Rcd8 26. h4
Nf8 {[#]} 27. Ra1 ({White should play} 27. Bf1 $1 {[%CAl Rf1b5]} Bxf1 28. Kxf1
(28. Rxf1 Rd3 $16)) 27... Ba4 28. Bf1 Rd1 29. Rexd1 Bxd1 30. Ng5 Ba4 31. Rc1
Rd1 32. Rxd1 Bxd1 33. Bb5 Nd8 34. Bd4 Bb3 35. a4 Bd5 36. a5 Nd7 $1 37. axb6 (
37. f4 {feels hotter.} Nc6 38. Bc3 g6 39. a6 Ndb8 40. Be2) 37... axb6 38. Bxd7
(38. Bb2 {is interesting.} Nc6 39. f4 Na7 40. Be2 g6 41. Kf2) 38... Kxd7 {
[%mdl 4096] Endgame KBN-KBN} 39. b5 Kc7 40. Nh3 Bc4 41. Nf4 Bxb5 42. Nxh5 g6 $1
{[%CAl Rg6h5]} 43. Nf4 Be8 $1 44. Bc3 Kd7 45. f3 Ke7 46. Bb4+ Kf7 47. Kf2 Nc6
48. Bd6 Na5 49. Bb4 Nc4 50. Bc3 b5 51. Nd3 Bc6 52. g4 fxg4 53. fxg4 Be4 54. Nb4
Bb7 55. Nc2 Be4 56. Nb4 Bb7 57. Bd4 Na5 58. Ke3 g5 59. h5 Nc6 60. Nd3 Nxd4 61.
Kxd4 $11 {KB-KN} Bf3 62. Nf2 Kg7 63. Ke3 Bd5 64. Ne4 Kh6 65. Nd6 Kg7 $2 {
Mistake. b4 was best.} (65... b4 66. Nf7+ Kg7 67. Nxg5 Kh6 68. Nh3 b3 69. Kd3
Be4+ 70. Kc3 Bc2 71. Nf4 Bd1 72. Nxe6) (65... b4 $11) 66. Nxb5 $16 Bc4 67. Nd6
Bd5 68. Ne4 Kh6 69. Nf6 Bb3 70. Kd4 {[#] Black must now prevent Kc5.} Kg7 71.
Kc5 {Hoping for Kd6.} Bc2 72. Kd6 Bb3 $4 {Blunder. Kf7 was best.} (72... Kf7) (
72... Kf7 $16 73. h6 Bb3) 73. Ke7 $18 {White is clearly winning.} Bc4 74. Ne8+
(74. Ne4 $142 Kh6 75. Nd6) 74... Kh6 75. Nd6 Be2 76. Nf7+ Kg7 77. Nxg5 Bxg4 78.
Nxe6+ Kh6 79. Nf4 Kg5 80. e6 Bf5 81. Kf7 {Precisão Chessbase: Brancas 87%
Pretas 78%. Precisão Lichess.org: Brancas 98% Pretas 93%. Precisão Chess.com:
Brancas 96.9% Pretas 92.6%.} 1-0
[Event "MAGISTRAL OSASCO 1014"]
[Site "Sao Paulo"]
[Date "2024.03.22"]
[Round "5.4"]
[White "Duarte Napoles, Fanny"]
[Black "Molina, Roberto Junio Brito"]
[Result "1-0"]
[ECO "C77"]
[WhiteElo "2203"]
[BlackElo "2376"]
[Annotator "STOCKFISH 16"]
[PlyCount "65"]
[EventDate "2024.03.18"]
[EventCountry "BRA"]
{[%evp 12,65,25,6,9,6,8,8,46,51,55,53,169,167,214,220,237,175,228,186,201,199,
190,66,248,98,278,116,115,126,228,233,229,241,233,231,236,244,275,238,424,127,
103,114,329,310,410,325,418,260,451,456,585,597,553,513]} 1. e4 e5 2. Nf3 Nc6
3. Bb5 a6 4. Ba4 Nf6 5. d3 b5 6. Bb3 Bc5 7. Nc3 h6 {C77: Ruy Lopez: 3...a6 4
Ba4 Nf6, unusual lines.} 8. Nd5 d6 9. c3 O-O $6 {Inaccuracy. Be6 was best.The
position is equal.} (9... Be6 10. Nxf6+) 10. Nxf6+ Qxf6 11. Bd5 Bb7 $2 {
Mistake. Bd7 was best.} (11... Bd7) (11... Bd7 $14) 12. g4 $18 Qe7 13. g5 Kh7
14. gxh6 g6 $146 ({Predecessor:} 14... gxh6 15. Ng5+ Kh8 16. Qh5 Qf6 17. Nxf7+
Rxf7 18. Qxf7 Bxf2+ 19. Ke2 Qxf7 20. Bxf7 Kg7 21. Bd5 Bb6 22. Be3 {1-0 (22)
Gara,A (2354)-Otikova,E (2049) Riga 2017}) 15. Ng5+ Kh8 16. h4 Nd8 17. Bb3 $6 {
Inaccuracy. h5 was best.} (17. h5 Bxd5) (17. Bxb7 $18 Nxb7 18. h5) 17... Ne6 $2
{[#] Mistake. a5 was best.} (17... a5) (17... a5 $14) 18. Qe2 $2 {Mistake.
Bxe6 was best.} (18. Bxe6 $1) (18. Bxe6 $1 $18 {is the precise move to win.}
fxe6 19. Be3) 18... Bb6 $2 {Mistake. Nxg5 was best.} (18... Nxg5) (18... Nxg5
$16 {was called for.} 19. Bxg5 (19. hxg5 f5 $11) 19... f6) 19. Rg1 $2 {Mistake.
Bxe6 was best.} (19. Bxe6 fxe6 20. Be3 d5 21. Bxb6 cxb6 22. Qe3 Rf4 23. f3 b4
24. Qxb6 bxc3 25. bxc3 dxe4) (19. Bxe6 $18 fxe6 20. Be3) 19... Nc5 $16 20. Bc2
f5 $6 {Inaccuracy. f6 was best.} (20... f6) (20... f6 $16) 21. exf5 $18 gxf5
22. Be3 Nd7 23. O-O-O Rae8 24. Bb3 d5 $6 {Inaccuracy. Bxe3+ was best.} (24...
Bxe3+ 25. Qxe3 Qf6 (25... f4 {might work better.} 26. Qe2 d5) 26. d4 (26. Nf7+
$142 Rxf7 27. Bxf7 Qxf7 28. Rg7) 26... Re7 27. h7 a5 28. Qd3 exd4 29. cxd4 a4
30. Bg8 Be4 31. Qxb5 (31. Qc3 $18)) 25. Kb1 c5 $6 {Inaccuracy. Bxe3 was best.}
(25... Bxe3 26. fxe3 Nf6 27. Qf3 Qd7 28. Qg3 Bc8 29. Nh7 Rg8 30. Nxf6 Rxg3 31.
Rxg3 Qf7 32. Nxe8) (25... Bxe3 $142 26. fxe3 (26. Qxe3 c5 $16) 26... c5) 26.
Qh5 $4 {Blunder. Nh7 was best.} (26. Nh7 Qxh7 27. Rg7 Nf6 28. Rxh7+ Kxh7 29.
Rg1 Rf7 30. Rg5 c4 31. Bxb6 d4 32. dxc4 d3) (26. Nh7 $18 {is more deadly.})
26... f4 $16 27. Bc1 Bc6 $2 {Mistake. c4 was best.} (27... c4 28. dxc4) (27...
c4 $16 {was worth a try.}) 28. Bc2 $18 ({Not} 28. Qg6 Rf6 $14) 28... Qf6 29. f3
Re7 30. Rg2 $6 {Inaccuracy. Nh3 was best.} (30. Nh3 Qf7 31. Rg6 Rg8 32. d4 Rxg6
33. Bxg6 Qg8 34. Qg5 cxd4 35. cxd4 Bxd4 36. Nxf4 exf4) 30... Qd6 $6 {
Inaccuracy. d4 was best.} (30... d4) (30... Nb8 $142 31. Nh3 Be8) 31. h7 {
Black must now prevent Rdg1.White is clearly winning.} Nf6 $6 {Inaccuracy. Rg7
was best.} (31... Rg7 {[#]} 32. Rdg1 $1 Qe7 33. Qh6 Qf6 34. Nf7+ Rfxf7 35. Rg6
Qe7 36. Rxg7 Rxg7 37. Rxg7 Qxg7 38. Qxc6) 32. Qh6 Rg7 {[#]} 33. Qxg7+ $1 {
[%mdl 512] Precisão Chessbase: Brancas 53% Pretas 34%. Precisão Lichess.org:
Brancas 94% Pretas 95%. Precisão Chess.com: Brancas 83.5% Pretas 74.6%.} 1-0
[Event "MAGISTRAL OSASCO 1014"]
[Site "Sao Paulo"]
[Date "2024.03.22"]
[Round "5.5"]
[White "Bobadilla Viera, Jorge Samuel"]
[Black "Fier, Alexandr"]
[Result "0-1"]
[ECO "E11"]
[WhiteElo "2397"]
[BlackElo "2561"]
[Annotator "STOCKFISH 16"]
[PlyCount "96"]
[EventDate "2024.03.18"]
[EventCountry "BRA"]
{[%evp 10,96,53,53,53,38,74,24,21,14,12,12,20,8,15,7,14,7,23,23,28,22,30,21,21,
25,24,9,12,12,27,32,35,10,11,9,114,112,86,-42,-28,-41,41,43,42,-66,-58,-59,-42,
-39,-44,-169,-80,-115,-49,-59,-25,-163,-151,-157,-167,-375,-380,-388,-145,-146,
-146,-135,-146,-542,-542,-589,-589,-589,-580,-586,-583,-586,-582,-584,-578,
-29995,-29996,-29996,-29997,-29997,-29997,-29997,-29998]} 1. d4 Nf6 2. c4 e6 3.
Nf3 Bb4+ 4. Nbd2 O-O 5. a3 Be7 6. e4 d6 {E11: Bogo-Indian.} 7. Be2 Nfd7 8. O-O
e5 {White has an edge.} 9. Nb1 exd4 10. Nxd4 Nc5 11. Qc2 $146 ({Predecessor:}
11. Nc3 a5 12. Be3 Bf6 13. Qc2 Nc6 14. Ndb5 Bxc3 15. Nxc3 Re8 16. Rad1 b6 17.
f4 {1-0 (40) Cheng,B (2552)-Sanal,V (2556) Krasnaya Polyana 2021}) 11... Nc6
12. Be3 Nxd4 13. Bxd4 Bf6 14. Bxf6 Qxf6 15. Nc3 a5 16. Nd5 Qd8 $1 17. b4 Ne6
18. Qd2 Re8 19. Rad1 axb4 20. axb4 c5 21. f4 Nd4 22. f5 Rxe4 $6 {Inaccuracy.
f6 was best.} (22... f6 23. Bf3) (22... f6 $11) 23. Bd3 $16 Re5 {[%CAl Rc8f5]}
24. Rde1 $2 {Mistake. f6 was best.} (24. f6 Be6 25. Ne7+ $1 Kf8 $1 26. bxc5
gxf6 27. Nd5 $1 Bxd5 28. Qh6+ Ke8 29. cxd5 dxc5 30. Rxf6 Qxd5) (24. f6 $16)
24... f6 $1 $15 25. bxc5 Nb3 $6 {Inaccuracy. Rxe1 was best.} (25... Rxe1 26.
Rxe1) (25... Rxe1 $15 26. Rxe1 dxc5) 26. Qf2 $1 $14 {And now cxd6 would win.}
Nxc5 27. Bb1 $6 {Inaccuracy. Rxe5 was best.} (27. Rxe5 $1 Nxd3 28. Qb6 Qxb6+
29. Nxb6 Nxe5 30. Nxa8 Nxc4 31. Rf4 b5 32. Nc7 Bd7 33. Kf2 Ne5) (27. Rxe5 $1
$14 Nxd3 28. Qb6 Qxb6+ 29. Nxb6 Nxe5 30. Nxa8) 27... b6 28. Rd1 Bb7 {Hoping
for ...Bxd5.} 29. Nf4 $1 Qc7 30. Qg3 $2 {Mistake. Qd4 was best.} (30. Qd4) ({
White should play} 30. h3 $15) 30... Rae8 $6 {Inaccuracy. Ne4 was best.} (30...
Ne4 31. Qd3 Rxf5 32. Qd4 Re5 33. Bxe4 (33. Rf3 $142) 33... Rxe4 34. Qxd6 Rxc4
35. Qxc7 Rxc7 36. Rd6 Rc6 37. Rd7) (30... Ne4 $19 31. Bxe4 Bxe4) 31. h3 {[#]}
Qd7 $6 {Inaccuracy. Ne4 was best.} (31... Ne4 $1 32. Bxe4) (31... Ne4 $17 32.
Bxe4 Bxe4) 32. Kh2 $15 Re3 33. Qg4 $2 {[#] Mistake. Qf2 was best.} (33. Qf2) (
33. Qf2 $11 {and White has nothing to worry.}) 33... Qe7 $1 $36 {[%mdl 2048]
White is under strong pressure.} 34. Nh5 Qe5+ 35. Qf4 $2 {Mistake. Kg1 was
best.} (35. Kg1) (35. Kg1 $142 Re7 36. Qd4) 35... Re2 36. Rg1 {[#]} Bxg2 $1 {
[%mdl 512] Blunder. Bf3 was best.} 37. Qxe5 $17 (37. Rxg2 Rxg2+) 37... Be4+ 38.
Kg3 {[%CAl Re5e8]} Rxe5 ({Don't play} 38... dxe5 39. Bxe4 Rxe4 40. Kf3 $11) 39.
Rxd6 $4 {Blunder. Kh4 was best.} (39. Kh4) (39. Kh4 $17 {nothing else works.}
Kf8 40. Rxg7 Rxf5 41. Rdg1) 39... Bxb1 $19 40. Rd8+ Kf7 41. Rxb1 Rxf5 42. Rd5
Ne4+ 43. Kg4 Rxd5 44. cxd5 Rf2 {( -> ...f5+)} 45. Ng3 $4 {[#] Checkmate is now
unavoidable. h4 was best.} (45. h4 f5+ 46. Kh3 g6 47. Rxb6 gxh5 48. Re6 Rf3+
49. Kg2 Rg3+ 50. Kh2 Rd3 51. Re5 Kg6) 45... h5+ $1 {[%mdl 64] Deflection.
Black mates.} 46. Kxh5 (46. Nxh5 f5+) 46... Rf4 {[%CAl Re4g3]} 47. Nf5 {[#]}
Ng3+ $1 {[%mdl 512]} 48. Nxg3 g6+ {Precisão Chessbase: Brancas 56% Pretas 68%.
Precisão Lichess.org: Brancas 88% Pretas 94%. Precisão Chess.com: Brancas 82.
9% Pretas 92.7%.} 0-1
