[Event "Magistral Osasco 2024"]
[Site "Sao Paulo"]
[Date "2024.03.24"]
[Round "7.1"]
[White "De Carvalho, Vitor Augusto Ponci"]
[Black "Cubas, Jose Fernando"]
[Result "0-1"]
[ECO "E84"]
[WhiteElo "2134"]
[BlackElo "2417"]
[Annotator "Stockfish 16"]
[PlyCount "76"]
[EventDate "2024.03.18"]
[EventCountry "BRA"]
{[%evp 17,76,64,51,45,63,56,58,50,42,60,63,55,94,-30,-27,-66,-50,-94,-75,-91,
-1,-3,-11,-64,-58,-52,-67,-80,-82,-118,-121,-119,-123,-150,-160,-225,-232,-214,
-217,-221,-186,-282,-318,-358,-351,-391,-385,-430,-457,-476,-460,-540,-539,
-548,-546,-525,-516,-595,-578,-586,-566]} 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4
d6 5. f3 O-O 6. Be3 Nc6 $6 {Inaccuracy. c5 was best.} (6... c5 7. Nge2 Qa5 8.
Nc1 Qb6 9. Nb3 cxd4 10. Bxd4 Qd8 11. Be3) 7. Nge2 a6 8. Qd2 Rb8 9. Rc1 Bd7 10.
Nd1 {E84: King's Indian: Sämisch Panno: 7 Nge2 a6 8 Qd2 Rb8.} e5 11. d5 Ne7 12.
g4 {White is slightly better.} Ne8 13. h4 $146 ({Predecessor:} 13. Ng3 f5 14.
gxf5 gxf5 15. Nh5 fxe4 16. fxe4 Ng6 17. Bg5 Bf6 18. Nxf6+ Nxf6 19. Nf2 {
1-0 (33) Sulskis,S (2568)-Sakalauskas,V (2405) Lithuania 2011}) 13... f5 14. g5
c5 15. dxc6 $2 {Mistake. b4 was best.} (15. b4 b6) (15. b4 $16) 15... bxc6 $11
16. Nec3 Be6 17. Be2 Nc7 $36 {[%mdl 2048] Black is really pushing.} 18. O-O d5
$6 {Inaccuracy. Bc8 was best.} (18... Bc8 19. b3 c5 20. Nd5 Nexd5 21. cxd5 f4
22. Bf2 h6 $1 23. gxh6 {[#]} Bf6 $1 24. Kg2 Bxh4 25. Rh1) (18... f4 $17 19. Ba7
Rb7) 19. cxd5 cxd5 {White must now prevent ...d4.} 20. exd5 Nexd5 21. Nxd5 Nxd5
22. Bc4 Re8 23. Bxd5 Bxd5 24. Nc3 Ba8 25. Qxd8 Rexd8 26. Rcd1 $6 {Inaccuracy.
Na4 was best.} (26. Na4 {[#]} Rd3 $1 27. Ba7 Re8 28. Nc5 Rd6 29. Nb3 a5 30. Rc4
Rd3 31. Nc5 Rd2 32. Ne6 Rxe6 (32... Bd5 $19 33. Nxg7 Bxc4 34. Nxe8 Bxf1 35.
Kxf1 Kf7)) (26. Na4 $17) 26... Rxd1 $19 27. Nxd1 Rb4 28. f4 Bf8 29. Kh2 $2 {
Mistake. b3 was best.} (29. b3 Re4 30. Rf2 Bc6 31. Rc2 exf4 32. Bf2 Re6 33. Nb2
f3 34. Rc3 Be4 35. Rc8 Rc6) (29. b3 {keeps fighting.}) 29... Bd6 30. Kg3 Kf7
31. b3 Re4 32. Bc1 $6 {Inaccuracy. Rf2 was best.} (32. Rf2 Bb7 33. Rf1 a5 34.
Rf2 Bb8 35. Rf1 Bc6 36. fxe5 Rg4+ 37. Kf2 Bxe5 38. Ke1 Bg3+) 32... Re2 {
Black is clearly winning.} 33. Rf2 Re1 34. Rd2 Rg1+ 35. Kf2 Bc5+ 36. Ke2 exf4 {
Strongly threatening ...f3+.} 37. Rd8 f3+ 38. Kd2 Be4 {Precisão Chessbase:
Brancas 37% Pretas 76% Precisão Chess.com: Brancas 87.2% Pretas 96.5%
Precisão Lichess.org: Brancas 91% Pretas 96%} 0-1
[Event "Magistral Osasco 2024"]
[Site "Sao Paulo"]
[Date "2024.03.24"]
[Round "7.2"]
[White "Quintiliano, Renato R."]
[Black "Di Berardino, Diego Rafael"]
[Result "1/2-1/2"]
[ECO "E06"]
[WhiteElo "2483"]
[BlackElo "2497"]
[Annotator "Stockfish 16"]
[PlyCount "99"]
[EventDate "2024.03.18"]
[EventCountry "BRA"]
{[%evp 16,99,39,33,59,48,64,44,65,64,75,77,85,81,84,76,72,60,62,44,100,96,96,
53,60,62,54,54,64,68,109,112,123,122,131,117,127,129,143,159,192,193,194,146,
187,193,184,184,194,183,199,185,286,276,279,278,386,196,166,165,225,47,67,8,0,
0,41,39,39,38,103,84,149,65,84,53,77,29,56,56,65,12,16,0,0,-29]} 1. d4 e6 2. c4
Nf6 3. g3 d5 4. Bg2 Be7 5. Nf3 O-O 6. b3 a5 7. O-O c6 8. Nc3 b6 9. Bb2 Bb7 {
A14: English Opening: 1...e6 with b3 by White.} 10. Qc2 h6 $146 ({Predecessor:
} 10... Na6 11. a3 Rc8 12. Rfd1 Re8 13. e4 c5 14. e5 Ne4 15. Nxe4 dxe4 16. dxc5
Qc7 {1-0 (57) Oparin,G (2652)-Golubka,P (2452) Lichess.org INT 2021}) 11. e4 a4
{White is slightly better.} 12. e5 axb3 13. axb3 {Rxa8 is the strong threat.}
Rxa1 14. Rxa1 {Strongly threatening Ra7.} Nfd7 15. h4 Na6 16. Qe2 {Threatens
to win with cxd5.} Nb4 17. Ne1 Qb8 (17... c5 $14) 18. cxd5 $16 cxd5 19. Bc1 Qc8
20. Bd2 Ba6 21. Qg4 {Hoping for Bxh6.} Kh7 22. Ne2 Nb8 $6 {Inaccuracy. Nd3 was
best.} (22... Nd3) 23. Nf4 $40 {[%mdl 128] White has strong attack.} N8c6 24.
Nh5 {[%csl Gh5][%CAl Rg4g7]} Rg8 25. Qf4 Qf8 26. Qe3 Bb5 27. Rc1 Qd8 28. Nf3
Na2 29. Rb1 Nab4 30. Bf1 Bxf1 31. Rxf1 Rh8 32. Rc1 Qd7 33. Qf4 Qe8 $6 {
Inaccuracy. Bd8 was best.} (33... Bd8 34. Qe3 b5 35. Kg2 Be7 36. Nh2 Qb7 37.
Ng4 Kg8 38. Bxb4 Nxb4 39. Qf3 Na2 $2 (39... Kf8 $16 40. Qc3 Kg8) 40. Ra1) (
33... Bd8 $142) 34. Bxb4 $18 (34. Qg4 Rg8 $11) 34... Nxb4 35. Rc7 $1 Rf8 36.
Rb7 $6 {Inaccuracy. Nh2 was best.} (36. Nh2 Qd8 37. Rb7 Kh8 38. Kg2 Nc2 39. Ng4
Ne1+ 40. Kh3 Bg5 41. hxg5 Qxg5 42. Qxg5 hxg5) (36. Qg4 $142 {[%csl Gh5][%CAl
Rg4g7]} Rg8 37. Qf4) 36... Nc6 37. Qg4 $1 {[%csl Gh5][%CAl Rg4g7]} ({Much less
strong is} 37. Rxb6 $6 Qd7 $14) 37... Rg8 (37... g6 {keeps fighting.}) 38. Nf4
$6 {Inaccuracy. Rc7 was best.} (38. Rc7 Bd8 39. Ng5+ $1 hxg5 40. hxg5 Bxg5 41.
Qxg5 Nxd4 42. Kg2 $1 Nf5 {[#]} 43. Rc1 $1 Qf8 44. Rh1 {[%csl Ge5,Gg5][%CAl
Rh5f6]} Nh6) ({Weaker is} 38. Rxb6 Qd7 $14) ({Better is} 38. Rc7 $18) 38... Qd8
$14 39. Qh5 $6 {Inaccuracy. Kg2 was best.} (39. Kg2 Kh8 40. Qh5 Rf8 41. Ng5 Kg8
42. Ngxe6 fxe6 43. Qg6 Nxd4 44. Nxe6 Nxe6 45. Qxe6+ Rf7) (39. b4 $14) 39... Rf8
$11 40. Kg2 Na5 41. Ra7 Nc6 $1 {[%CAl Rc6a7]} 42. Ra1 Bb4 $6 {Inaccuracy. g6
was best.} (42... g6) (42... g6 $14 43. Qg4 Na5) 43. Qg4 $16 g6 {[#]} (43...
Be7 $142) 44. Nd3 (44. h5 $1 $16 {[%CAl Rh5g6]} g5 45. Nxe6 fxe6 46. Qxe6)
44... Be7 $14 45. Qf4 Kg7 46. Qe3 Qd7 47. Nh2 h5 48. Nf3 Bd8 49. Qf4 Ne7 $1 50.
Qd2 {Precisão Chessbase: Brancas 62% Pretas 59% Precisão Chess.com: Brancas
89.8% Pretas 89.9% Precisão Lichess.org: Brancas 94% Pretas 95%} 1/2-1/2
[Event "Magistral Osasco 2024"]
[Site "Sao Paulo"]
[Date "2024.03.24"]
[Round "7.3"]
[White "Duarte Napoles, Fanny"]
[Black "Do Valle Cardoso, Lucas"]
[Result "0-1"]
[ECO "C72"]
[WhiteElo "2203"]
[BlackElo "2406"]
[Annotator "Stockfish 16"]
[PlyCount "104"]
[EventDate "2024.03.18"]
[EventCountry "BRA"]
{[%evp 9,104,50,75,30,43,44,79,90,103,95,92,77,77,72,178,186,182,62,65,61,64,4,
86,86,98,42,43,8,33,26,81,60,105,25,111,111,166,186,222,228,313,192,208,207,
200,159,150,79,118,36,133,124,137,135,109,-62,-65,-236,-220,-231,-231,-294,
-322,-296,-326,-542,-536,-539,-536,-528,-508,-678,-685,-615,-537,-542,-568,
-562,-569,-557,-571,-535,-497,-562,-561,-567,-554,-29998,-29999,-29999,-29991,
-29991,-4363,-29992,-29993,-29993,-29994]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4
d6 5. O-O g5 6. c3 {C72: Ruy Lopez: Deferred Steinitz: 5 0-0.} g4 7. Ne1 Nf6 8.
d4 {White is better.} Bd7 ({Don't blunder} 8... Nxe4 $2 9. d5 $18) 9. Bg5 Rg8
$146 ({Predecessor:} 9... Be7 10. Bc2 Rg8 11. Bh4 Nh5 12. Bxe7 Qxe7 13. d5 Nb8
14. g3 Bb5 15. Bd3 Bxd3 16. Nxd3 {1/2-1/2 (57) Ugroczky,P (2204)-Toth,T (2222)
Balatonlelle 2018}) 10. Bh4 Be7 11. d5 Na5 $6 {Inaccuracy. Nb8 was best.} (
11... Nb8 12. Bxf6) (11... Nb8 $16) 12. Bxf6 $18 Bxf6 13. Nd2 $2 {Mistake.
Bxd7+ was best.} (13. Bxd7+ $1 Qxd7 14. Na3 b5 15. b4 Nb7 16. Nec2 Bg5 17. c4
a5 18. Nxb5 axb4 19. Nxb4 h5) ({White must play} 13. Bxd7+ $1 $18 Qxd7 14. Na3)
13... b5 $14 14. Bc2 Bg5 15. b4 $6 {Inaccuracy. a4 was best.} (15. a4 h5) (15.
a4 $14) 15... Nb7 $6 {Inaccuracy. Bxd2 was best.} (15... Bxd2 $1 16. Qxd2) (
15... Bxd2 $1 $11 {remains equal.} 16. Qxd2 Nc4) 16. a4 $16 h5 17. axb5 $6 {
Inaccuracy. Qe2 was best.} (17. Qe2 h4 18. Nd3 Bxd2 19. Qxd2 Qg5 20. Qxg5 Rxg5
21. axb5 Bxb5 22. Ba4 Bxa4 23. Rxa4 f5) (17. Qe2 $16) 17... axb5 $14 {
Threatens to win with ...Rxa1.} 18. Nb3 h4 19. Bd3 g3 $6 {Inaccuracy. Rxa1 was
best.} (19... Rxa1 20. Nxa1 Qc8 21. Qe2 c6 22. Nac2 Nd8 23. Na3 cxd5 24. Nxb5
Ke7 25. exd5 f5 $1 26. c4) 20. Qe2 $1 Rxa1 21. Nxa1 gxh2+ (21... Kf8 $11) 22.
Kh1 $1 $16 Qa8 $6 {Inaccuracy. Kf8 was best.} (22... Kf8 23. Bxb5) 23. Nac2 Qa6
24. Nf3 Bd8 25. Nxh2 $6 {Inaccuracy. Ra1 was best.} (25. Ra1 Qb6 26. Ra8 c5 27.
Qe3 h3 28. g3 Na5 29. Rxa5 c4 30. Qxb6 Bxb6 31. Ra8+ Ke7) ({Less strong is} 25.
Kxh2 Be7 $16) 25... c5 26. dxc6 Qxc6 27. c4 $6 {Inaccuracy. Ne3 was best.} (27.
Ne3 Qxc3 28. Nd5 Qc6 {[#]} 29. Ra1 $1 {[%CAl Ra1a8]} Kf8 30. Ra8 Rg6 31. Nf1
Kg7 32. Nfe3 Bg5 33. Bxb5 Qc1+) 27... Bb6 28. Na3 (28. cxb5 $142 Qc3 29. Ra1)
28... bxc4 29. Bxc4 $6 {Inaccuracy. Nxc4 was best.} (29. Nxc4) (29. Nxc4 $16 h3
30. g3) 29... Qa4 $6 {[#] Inaccuracy. d5 was best.} (29... d5 30. Bxd5 Qg6 {
[%csl Gg8][%CAl Rg6g2]} 31. Qf3 Nd6 32. Rd1 Ba4 33. Rc1 Bd7 34. Nc4 (34. Bc6
$16) 34... Nxc4 35. Rxc4 Kf8 36. Rc2) (29... d5 $14 30. Bxd5 Qg6) 30. Nc2 $1
Nd8 {[%CAl Bb7d8,Bd8e6,Be6f4][%mdl 32]} 31. Ra1 Qc6 32. Na3 $4 {Blunder. Ra6
was best.} (32. Ra6) (32. Ra6 $16) 32... Ne6 $36 {[%mdl 2048] Black fights for
an advantage.} 33. Rg1 $4 {Blunder. Ng4 was best.} (33. Ng4 Nf4) ({White
should try} 33. Ng4 $15 Rg6 34. f3) 33... Nf4 $19 34. Qf3 Qa4 35. g3 $6 {
Inaccuracy. Bd5 was best.} (35. Bd5 Qxb4) 35... hxg3 36. Rxg3 Rh8 37. Rg1 $2 (
37. Bf1) 37... Rh3 38. Rg3 Qxb4 39. Rxh3 $6 {Inaccuracy. Bf1 was best.} (39.
Bf1 Rxg3 40. Qxg3 Qxe4+ 41. f3 Qh7 42. Nc4 Bc5 43. Nd2 f5 44. Nb3 Bb6 45. Nc1
Be6) 39... Bxh3 40. Qg3 Qe1+ 41. Nf1 {intending Qg8+.} Qxe4+ (41... Bxf1 $2 42.
Qg8+ Ke7 43. Qxf7+ Kd8 44. Qf8+ Kc7 45. Qf7+ Kc8 46. Qe8+ Kb7 47. Qd7+ Bc7 48.
Qb5+ Kc8 49. Qe8+ Kb7 50. Qb5+ Kc8 51. Qe8+ Kb7 52. Qb5+ $19) 42. Kh2 Qh7 43.
Kg1 d5 44. Bb5+ Kf8 {Hoping for ...Bf5.} 45. Ne3 Be6 {White must now prevent ..
.d4.} 46. Ng2 Nh3+ 47. Kf1 Nxf2 {( -> ...Qh1+)} 48. Qxe5 $4 {Checkmate is now
unavoidable. Qh4 was best.} (48. Qh4 Qxh4 49. Nxh4 Nh3 50. Nf3 f6 51. Bc6 Nf4
52. Nb5 Ke7 53. Nh4 Bh3+ 54. Ke1 Bg4) 48... Qh1+ 49. Ke2 Bg4+ 50. Kd2 Ne4+ (
50... Qd1+ $142 51. Kc3 Qa1+ {[%mdl 64] Double Attack} 52. Kb4 Qxe5 53. Kb3 Nd1
54. Nb1 Bc5 55. Ka4 Qa1+ {[%mdl 64] Double Attack} 56. Kb3 Qxb1+ 57. Ka4 Qb4#)
51. Kc2 Qd1+ 52. Kb2 Bd4+ {Precisão Chessbase: Brancas 49% Pretas 60%
Precisão Chess.com: Brancas 78.7% Pretas 88.0% Precisão Lichess.org: Brancas
86% Pretas 93%} 0-1
[Event "Magistral Osasco 2024"]
[Site "Sao Paulo"]
[Date "2024.03.24"]
[Round "7.4"]
[White "Bobadilla Viera, Jorge Samuel"]
[Black "Valderrama Quiceno, Esteban Alberto"]
[Result "1/2-1/2"]
[ECO "E20"]
[WhiteElo "2397"]
[BlackElo "2428"]
[Annotator "Stockfish 16"]
[PlyCount "147"]
[EventDate "2024.03.18"]
[EventCountry "BRA"]
{[%evp 12,147,67,9,38,38,38,33,37,30,33,34,39,30,31,31,33,29,30,30,25,30,27,29,
35,20,25,28,64,64,69,65,68,60,68,69,78,54,115,116,121,23,111,119,106,112,103,
106,124,125,145,131,191,192,230,49,54,67,69,67,68,61,68,10,37,22,30,31,30,31,
41,25,27,27,29,12,12,13,25,25,26,21,162,26,40,48,41,0,0,0,1,-3,-7,-6,-3,-4,-4,
-5,-3,-3,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
-1,0,0,-6]} 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. f3 d5 5. a3 Bxc3+ 6. bxc3 c6 7. e3
({White should play} 7. e4 $14) 7... b6 {E20: Nimzo-Indian: 4 g3 and 4 f3.} 8.
cxd5 cxd5 9. Bb5+ Bd7 {White is slightly better.} 10. Bd3 Nc6 11. Ne2 e5 12.
O-O O-O 13. e4 h6 14. exd5 $146 ({Predecessor:} 14. Bb2 Re8 15. Ng3 Qc7 16. Qe2
Rad8 17. Qf2 Bc8 18. Rac1 Qd6 19. Bb5 dxe4 20. fxe4 {1-0 (31) Kishnev,S (2497)
-Van der Stricht,G (2404) Kallithea 2002}) 14... Nxd5 15. Be4 Nf6 16. Bxc6 Bxc6
17. dxe5 {[#] Strongly threatening Qxd8.} Qxd1 18. Rxd1 Nd7 19. f4 $36 {
[%mdl 2048] White has good play.} Rfe8 20. Rd6 Rac8 21. Be3 Ba4 {Black wants
to play ...Nxe5.} 22. Kf2 Nb8 23. Rb1 Nc6 24. Nd4 Na5 (24... h5 $14) 25. Rb4
$16 Rc4 26. Nf3 $6 {Inaccuracy. Rd5 was best.} (26. Rd5 Ra8 27. f5 Be8 28. Rxc4
Nxc4 29. f6 Nxa3 $2 (29... gxf6 $16 30. exf6 Nxe3 31. Kxe3 Rc8) 30. Nf5 gxf6
31. Nxh6+ (31. exf6 $142 Ba4 32. Nxh6+ Kh7 33. Rg5) 31... Kh7 32. exf6 Nc4) (
26. Rd5 $16) 26... Bc2 $6 {Inaccuracy. Rxb4 was best.} (26... Rxb4 $1 27. cxb4
Nc4 28. Rd3 Nb2 $1 29. Rd2 Nd1+ 30. Ke2 Nc3+ 31. Ke1 Rc8 32. Nd4 Nb5 33. Kf2) (
26... Rxb4 $1 $11 27. cxb4 (27. axb4 Nc4 $14) 27... Nc4 {[%mdl 64] Double
Attack}) 27. Rxc4 Nxc4 28. Rd7 a5 29. Bc1 Rc8 30. Nd4 Ba4 31. Ra7 Be8 (31... h5
$16 32. g3 Be8) 32. Nf5 $18 {Black must now prevent Ne7+.} Kf8 33. Nd6 $4 {
Blunder. g4 was best.} (33. g4 g6 34. Nxh6 b5 35. Rb7 a4 {[#]} 36. Ra7 $1 Nb6
37. f5 Rxc3 38. Bd2 Rc2 39. Ke1 Nd5) ({White should try} 33. g4 $18) 33... Nxd6
$14 34. exd6 {[%mdl 4096] Endgame Hoping for d7. KRB-KRB} Rd8 35. a4 Bxa4 36.
Ba3 Bd7 $1 37. Rb7 (37. Ke3 $14) 37... b5 38. Ra7 a4 39. Bc5 {Threatens to win
with Bb6.} Ke8 40. Ke3 Rc8 41. Kd4 h5 $1 42. g3 Rb8 43. f5 Rc8 44. h3 Rb8 45.
g4 hxg4 $1 46. hxg4 Kd8 47. Bb4 (47. Ke5 $18) 47... Rc8 48. Ba5+ Ke8 49. Bb6
Rc4+ {The position is equal.} 50. Kd3 g6 51. fxg6 fxg6 52. Bd4 Rc6 53. Be5 Rc4
54. g5 Bf5+ 55. Kd2 Bd7 56. Ke3 Bf5 {...Re4+ is the strong threat.} 57. Re7+
Kd8 58. Bf6 Kc8 59. Ra7 Re4+ 60. Kf3 {aiming for d7+!} Rc4 61. Be5 Rc5 62. Kf4
Bd7 63. Bd4 Rd5 64. Rc7+ Kd8 65. Bf6+ Ke8 66. Be5 Rd1 67. Ra7 Rd2 68. Ke3 Rd1
69. Bd4 Rg1 70. Bf6 Rg4 71. Be7 Rc4 72. Kd2 Rc6 73. Kd3 Rc4 74. Kd2 {Precisão
Chessbase: Brancas 86% Pretas 86% Precisão Chess.com: Brancas 95.9% Pretas 95.
6% Precisão Lichess.org: Brancas 96% Pretas 97%} 1/2-1/2
[Event "Magistral Osasco 2024"]
[Site "Sao Paulo"]
[Date "2024.03.24"]
[Round "7.5"]
[White "Fier, Alexandr"]
[Black "Molina, Roberto Junio Brito"]
[Result "1/2-1/2"]
[ECO "C54"]
[WhiteElo "2561"]
[BlackElo "2376"]
[Annotator "Stockfish 16"]
[PlyCount "105"]
[EventDate "2024.03.18"]
[EventCountry "BRA"]
{[%evp 18,105,20,21,55,52,59,-8,58,64,73,71,73,75,93,76,77,67,85,82,84,65,85,
74,104,78,97,89,121,92,130,89,168,120,120,84,117,107,102,91,105,76,73,50,44,0,
39,-3,0,0,0,-12,11,4,0,0,7,-13,-10,-22,-16,-25,0,-23,53,52,58,59,58,49,53,-15,
-13,-64,-71,-68,-73,-70,-70,-87,-66,-70,-48,-151,-150,-134,-135,-166,-139,-152]
} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d3 h6 6. O-O O-O 7. Re1 d6 8.
Nbd2 a6 9. Bb3 Ba7 10. Nf1 Ne7 {C54: Giuoco Piano: 4 c3 Nf6, main lines with 5
d4 and 5 d3.} 11. Ng3 Ng6 12. d4 $6 {Inaccuracy. h3 was best.} (12. h3 Re8 13.
Bd2 Bd7 14. a4 Qc8 15. a5 (15. Bc2 $11) 15... Be6 ({Better is} 15... Bxh3 $1
$15 16. gxh3 Qxh3) 16. d4 Bxb3 17. Qxb3 b5 18. axb6 Bxb6) ({White should play}
12. h3 $14) 12... c6 $6 {Inaccuracy. Bg4 was best.} (12... Bg4) (12... Bg4 $11)
13. Be3 Qc7 14. h3 Re8 15. Qd2 Kh7 16. Rad1 Be6 17. Bc2 Rad8 18. Qc1 b5 19. b3
$146 {[%CAl Bb2b3,Bb3b4][%mdl 32]} ({Predecessor:} 19. Nf5 Ng8 20. Rd2 f6 21.
Qd1 Bb8 22. a4 N6e7 23. Ng3 g6 24. Bb3 Bxb3 25. Qxb3 {1-0 (42) Dominguez Perez,
L (2719)-Buhmann,R (2541) Dresden 2008}) 19... Bc8 20. Nf5 Ng8 21. b4 f6 22.
Ng3 Qf7 23. a4 Nf8 $6 {Inaccuracy. N8e7 was best.} (23... N8e7) 24. Qa3 g6 $6 {
Inaccuracy. Bb8 was best.} (24... Bb8 25. Bb3 Be6 26. d5 cxd5 27. exd5 Bc8 28.
Nh4 g6 29. Bb6 Bc7 30. Bxc7 Qxc7 31. axb5 (31. c4 $16)) (24... Bb8 $16 {
might work better.}) 25. axb5 axb5 26. Qa5 Rd7 27. Rd2 Rb7 28. Qa3 Bb6 29. Bb3
Be6 30. d5 (30. Bxe6 {keeps more tension.} Nxe6 31. Qc1 Ra8 32. Red1 Ng7 33.
Nf1) 30... cxd5 31. Bxd5 (31. Bxb6 {with more complications.} Rxb6 32. exd5 Bd7
33. Qa1 f5 34. Ra2) 31... Bxd5 32. Rxd5 (32. exd5 Bxe3 33. fxe3 (33. Rxe3 f5
$17) 33... Ra7 $15) 32... Bxe3 33. fxe3 ({Don't play} 33. Rxe3 Ra7 $17) 33...
Qc7 34. Red1 Rb6 35. Qa5 $36 {[%mdl 2048] White is more active.} Qb8 $1 36. Qa2
Kg7 37. Nd2 Ne7 38. Rd3 Rc8 39. Nb3 Rbc6 40. Kh2 Rxc3 $6 {Inaccuracy. h5 was
best.} (40... h5 41. Ne2 Rb6 42. Na5 Ra6 43. Qb3 h4 44. R3d2 Qc7 45. Qb1 Rb8
46. Qb3 Nc6) (40... h5 $11) 41. Rxd6 $14 R3c6 42. Rxc6 Nxc6 43. Nc5 Qa7 ({
But not} 43... Nxb4 $6 44. Ne6+ Kh8 45. Qf2 $16) 44. Ne6+ $6 {Inaccuracy. Qb3
was best.} (44. Qb3 Qf7) (44. Qb3 $14) 44... Kf7 $11 45. Nd8+ {[%mdl 64] [#]
Discovered Attack (Double check)} Ke8 $1 46. Qxa7 Nxa7 47. Nb7 {And now Ra1
would win.} Rc7 48. Na5 Ke7 49. Ne2 Rc2 50. Nc1 $6 {Inaccuracy. Rc1 was best.}
(50. Rc1 $1 {[%CAl Rc1c2]} Rxe2) ({White has to play} 50. Rc1 $1 $15 Rxe2 51.
Rc7+ Nd7 52. Nb7) 50... Ne6 $17 {Black is clearly better.} 51. Nd3 Rc3 52. Kg1
h5 53. h4 $6 {Precisão Chessbase: Brancas 56% Pretas 64% Precisão Chess.com:
Brancas 90.0% Pretas 91.8% Precisão Lichess.org: Brancas 93% Pretas 95%} ({
Inaccuracy. Nb7 was best.} 53. Nb7 Nc6 54. Na5 Ncd8 55. Kf1 Nf7 56. Nb7 Nfg5
57. Ndc5 Nxc5 58. Nxc5 Ne6 59. Rd7+ Ke8) 1/2-1/2
