PGN Chess Game Fide Classico Rio de Janeiro de Inverno 2012 - Taša David Borensztajn (BRA)

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[Event "IRT Rio de Janeiro de Inverno - Ta├ža David Borensztajn
[Site "Rio de Janeiro"]
[Date "2012.06.17"]
[Round "1"]
[Board "1"]
[White "Chaves, Jorge Antonio Torres"]
[Black "Rodi, Luis Ernesto"]
[Result "0-1"]
[ECO "A00"]
[WhiteElo "2019"]
[BlackElo "2358"]
[PlyCount "0"]
[EventDate "2012.06.17"]
[EventRounds "7"]
[EventCountry "BRA"]

1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Bd7 6. Be2 Nge7 7. Na3 Ng6 8. Nc2
cxd4 9. cxd4 Be7 10. a3 O-O 11. h4 f6 12. h5 Nh8 13. Bd3 fxe5 14. Nxe5 Nxe5 15.
dxe5 Bc5 16. f4 a6 17. b4 Ba7 18. a4 Rc8 19. Qg4 Rc3 20. Rh3 Qc7 21. Kd1 Rc8
22. Qe2 Qd8 23. Bb2 R3c7 24. Ra3 Qe8 25. Qg4 Qf7 26. Nd4 a5 27. Nf3 h6 28. b5
Qe7 29. Rg3 Bf2 30. Rb3 Bxg3 31. Qxg3 Qf7 32. Qh2 Be8 33. g4 Rc4 34. Nd4 Rxa4
35. f5 exf5 36. Bxf5 Rcc4 37. Rd3 Qc7 38. Ne6 Qd7 39. Nc5 Qxb5 40. Nxa4 Qxa4+
41. Ke1 Qb4+ 42. Rd2 Nf7 43. Qg2 Bc6 44. Bg6 Ng5 45. Qf2 Rf4 46. Qa7 Nf3+ 0-1

[Event "IRT Rio de Janeiro de Inverno - Ta├ža David Borensztajn
[Site "Rio de Janeiro"]
[Date "2012.06.17"]
[Round "1"]
[Board "2"]
[White "De Paiva, Pedro Henrique"]
[Black "Paiva, Marcio Silveira"]
[Result "1-0"]
[ECO "A00"]
[WhiteElo "2292"]
[BlackElo "2010"]
[PlyCount "0"]
[EventDate "2012.06.17"]
[EventRounds "7"]
[EventCountry "BRA"]

1. e4 c6 2. c4 d5 3. cxd5 cxd5 4. exd5 Nf6 5. Qa4+ Nbd7 6. Nc3 g6 7. Nf3 Bg7 8.
Bc4 O-O 9. d3 a6 10. Qa3 b6 11. O-O Bb7 12. Bf4 b5 13. Bb3 Nb6 14. d6 e6 15.
Ng5 Nfd5 16. Nxd5 Bxd5 17. Ne4 Bxe4 18. dxe4 Qf6 19. Be3 Nd7 20. Rab1 a5 21. f4
Rfc8 22. Bd1 b4 23. Qa4 Qd8 24. e5 Nb6 25. Qb3 Nd5 26. Bd4 a4 27. Qd3 a3 28.
Bb3 axb2 29. Bxd5 exd5 30. Qf3 Qa5 31. f5 Rc4 32. Bxb2 d4 33. fxg6 1-0

[Event "IRT Rio de Janeiro de Inverno - Ta├ža David Borensztajn
[Site "Rio de Janeiro"]
[Date "2012.06.17"]
[Round "1"]
[Board "3"]
[White "Mano, Leonardo"]
[Black "Rego, Vinicius V. de Almeida"]
[Result "0-1"]
[ECO "A00"]
[WhiteElo "1999"]
[BlackElo "2268"]
[PlyCount "0"]
[EventDate "2012.06.17"]
[EventRounds "7"]
[EventCountry "BRA"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. a4 e5 7. Nb3 Be6 8. Be2
Nbd7 9. a5 Qc7 10. Be3 Rc8 11. O-O Be7 12. Qd2 O-O 13. Kh1 Qc6 14. f3 Rfd8 15.
Rfd1 h6 16. Bf1 Nf8 17. Qf2 d5 18. Bb6 Rd7 19. exd5 Nxd5 20. Nxd5 Bxd5 21. Bd3
Ne6 22. Nd2 Nf4 23. Bf5 Be6 24. Bxe6 Qxe6 25. Nf1 Nd5 26. Ba7 Qc6 27. c3 Rcd8
28. Re1 Nf4 29. Qb6 Nd3 30. Qxc6 bxc6 31. Re2 Rxa7 0-1

[Event "IRT Rio de Janeiro de Inverno - Ta├ža David Borensztajn
[Site "Rio de Janeiro"]
[Date "2012.06.17"]
[Round "1"]
[Board "4"]
[White "Costa, Carlos Evanir"]
[Black "Borensztajn, David"]
[Result "1-0"]
[ECO "A00"]
[WhiteElo "2223"]
[BlackElo "1938"]
[PlyCount "0"]
[EventDate "2012.06.17"]
[EventRounds "7"]
[EventCountry "BRA"]

1. d4 f5 2. g3 Nf6 3. Bg2 d6 4. c4 e6 5. Nc3 Be7 6. Nh3 O-O 7. O-O Qe8 8. Qc2
Nc6 9. d5 Nb4 10. Qb3 Na6 11. dxe6 Nc5 12. Qc2 c6 13. Ng5 h6 14. Nf3 Bxe6 15.
b3 Qh5 16. Nd4 Bd7 17. b4 Nce4 18. Bb2 d5 19. f3 Nxc3 20. Qxc3 dxc4 21. Qxc4+
Kh7 22. Nc2 Rad8 23. Rad1 Nd5 24. e4 fxe4 25. fxe4 Rxf1+ 26. Rxf1 Nf6 27. e5
Nd5 28. Qe4+ Qg6 29. Qxg6+ Kxg6 30. Be4+ Kh5 31. Rf7 Bf8 32. Kg2 Be6 33. Rf2
Nxb4 34. Nd4 Bd5 35. Bxd5 Nxd5 36. Ne6 Ne3+ 37. Kf3 Rd3 38. Nf4+ 1-0

[Event "IRT Rio de Janeiro de Inverno - Ta├ža David Borensztajn
[Site "Rio de Janeiro"]
[Date "2012.06.17"]
[Round "1"]
[Board "5"]
[White "Mathow, Hermann Thomas M."]
[Black "De Carvalho, Jose Jorge"]
[Result "0-1"]
[ECO "A00"]
[WhiteElo "1920"]
[BlackElo "2181"]
[PlyCount "0"]
[EventDate "2012.06.17"]
[EventRounds "7"]
[EventCountry "BRA"]

1. d4 Nf6 2. Bg5 Ne4 3. Bf4 c5 4. d5 Qb6 5. Qc1 d6 6. c4 g5 7. Nc3 Nxc3 8. Qxc3
Rg8 9. Bd2 Bg7 10. Qc2 Qxb2 11. Qxb2 Bxb2 12. Rb1 Bf6 13. e4 Nd7 14. a4 b6 15.
g3 g4 16. f4 gxf3 17. Nxf3 Ne5 18. Nxe5 Bxe5 19. Be2 Bh3 20. Kf2 Rg6 21. Rb3
Bd4+ 22. Be3 Rf6+ 23. Bf3 Be5 24. Ke2 Bd7 25. Ra3 Rg6 26. Bh5 Rg7 27. Rf1 Bh3
28. Rf2 Bg4+ 29. Bxg4 Rxg4 30. Bf4 Bd4 31. Rf1 Kd7 32. a5 Rgg8 33. axb6 axb6
34. Rb3 Ra6 35. Be3 Bf6 36. Rfb1 Kc7 37. Bd2 Rga8 38. h4 h5 39. Bc3 Bxc3 40.
Rxc3 Ra2+ 41. Kf1 R8a3 42. Rbc1 Ra4 43. R1c2 Rxc2 44. Rxc2 b5 45. g4 hxg4 46.
h5 bxc4 47. h6 Ra8 48. Kg2 Rh8 49. Kg3 Rxh6 50. Kxg4 Rg6+ 51. Kf3 e6 52. Rxc4
exd5 53. exd5 Rg5 54. Rf4 Rxd5 55. Rxf7+ Kc6 56. Rf8 Re5 57. Kf4 c4 58. Ra8 Kd5
59. Ra5+ Kd4 60. Ra4 Re4+ 61. Kf3 d5 62. Ra3 c3 63. Ra4+ Kd3 0-1

[Event "IRT Rio de Janeiro de Inverno - Ta├ža David Borensztajn
[Site "Rio de Janeiro"]
[Date "2012.06.17"]
[Round "1"]
[Board "6"]
[White "Baeta, Marcio Netto"]
[Black "Silva Filho, Marlen Moura e"]
[Result "1-0"]
[ECO "A00"]
[WhiteElo "2147"]
[BlackElo "1893"]
[PlyCount "0"]
[EventDate "2012.06.17"]
[EventRounds "7"]
[EventCountry "BRA"]

1. d4 Nf6 2. c4 e5 3. dxe5 Ng4 4. Nf3 Bc5 5. e3 Nc6 6. Qd5 Qe7 7. a3 a5 8. b3
Ngxe5 9. Bb2 Nxf3+ 10. gxf3 Bxe3 11. fxe3 Qxe3+ 12. Be2 Qxb3 13. Bxg7 Rg8 14.
Qe4+ 1-0

[Event "IRT Rio de Janeiro de Inverno - Ta├ža David Borensztajn
[Site "Rio de Janeiro"]
[Date "2012.06.17"]
[Round "1"]
[Board "7"]
[White "Machado, Wallace Fernandes"]
[Black "Bil, Angelo"]
[Result "0-1"]
[ECO "A00"]
[WhiteElo "1854"]
[BlackElo "2126"]
[PlyCount "0"]
[EventDate "2012.06.17"]
[EventRounds "7"]
[EventCountry "BRA"]

1. c4 e5 2. Nc3 Nf6 3. g3 d5 4. cxd5 Nxd5 5. Bg2 Nb6 6. d3 Be7 7. Nf3 Nc6 8.
O-O O-O 9. Qd2 f6 10. a3 a5 11. Qd1 Be6 12. Be3 Nd4 13. Nd2 c6 14. Rc1 Qd7 15.
Re1 Rfd8 16. Nce4 Bd5 17. Nc5 Qc8 18. Bxd4 exd4 19. e4 dxe3 20. Rxe3 Bxc5 21.
Rxc5 Qd7 22. Ne4 Bf7 23. Bf1 Nd5 24. Re1 b6 25. Rc1 Rac8 26. Qa4 c5 27. Qxd7
Rxd7 28. Bh3 Rcd8 29. Bxd7 Rxd7 30. d4 c4 31. Rxc4 Ne7 32. Rc2 Bg6 33. Rd2 Nd5
34. Rc1 Bxe4 35. Rc8+ Kf7 36. Re2 Bf3 37. Rec2 Re7 38. Kf1 Bg4 0-1

[Event "IRT Rio de Janeiro de Inverno - Ta├ža David Borensztajn
[Site "Rio de Janeiro"]
[Date "2012.06.17"]
[Round "1"]
[Board "8"]
[White "Okamura, Milton Kasuo"]
[Black "Reis, Virginia Lagrange M."]
[Result "1-0"]
[ECO "A00"]
[WhiteElo "2118"]
[BlackElo "1849"]
[PlyCount "0"]
[EventDate "2012.06.17"]
[EventRounds "7"]
[EventCountry "BRA"]

1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6 g6 6. Nc3 Bxa6 7. Nf3 d6 8. g3
Bg7 9. Bg2 Nbd7 10. Rb1 Nb6 11. b3 Bb7 12. Nh4 O-O 13. O-O Ne8 14. Bd2 Bxc3 15.
Bxc3 Rxa2 16. e4 Nc7 17. Re1 Nb5 18. Ba1 Qa8 19. Qg4 Qa5 20. Nf5 Re8 21. Qh4
Rxa1 22. Rxa1 Qc3 23. Nxe7+ Kg7 24. Nc6 Ra8 25. Rac1 Qf6 26. Qxf6+ Kxf6 27. Ra1
Bxc6 28. dxc6 Rxa1 29. Rxa1 Nd4 30. Ra6 Nc8 31. Ra8 1-0

[Event "IRT Rio de Janeiro de Inverno - Ta├ža David Borensztajn
[Site "Rio de Janeiro"]
[Date "2012.06.17"]
[Round "1"]
[Board "9"]
[White "Diaz, Marcos"]
[Black "Maia, Marco Aurelio Ferreira"]
[Result "0-1"]
[ECO "A00"]
[WhiteElo "1750"]
[BlackElo "2115"]
[PlyCount "0"]
[EventDate "2012.06.17"]
[EventRounds "7"]
[EventCountry "BRA"]

1. e4 c6 2. c3 d5 3. e5 Bf5 4. d4 e6 5. Nf3 h6 6. Be3 Nd7 7. Nbd2 a6 8. Be2 c5
9. O-O Rc8 10. Ne1 Ne7 11. Bf4 Nc6 12. Nb3 Be7 13. dxc5 Nxc5 14. Nd4 Bg6 15. f3
Nd7 16. Nxc6 Rxc6 17. Kh1 Bc5 18. Nd3 Ba7 19. Bg3 Bb8 20. f4 Bf5 21. Bf2 g5 22.
Nb4 Rc8 23. Bd4 Rg8 24. Bh5 g4 25. Qe1 Nc5 26. Bf2 a5 27. Bxc5 Rxc5 28. Qe3 Rc4
29. Nd3 Qh4 30. Bxf7+ Kxf7 31. Ne1 Qe7 32. b3 Rcc8 33. Qb6 Qc7 34. Qb5 h5 35.
Rc1 h4 36. Nd3 h3 37. g3 Qc6 38. Qxc6 Rxc6 39. Nf2 Rgc8 40. c4 Ba7 0-1

[Event "IRT Rio de Janeiro de Inverno - Ta├ža David Borensztajn
[Site "Rio de Janeiro"]
[Date "2012.06.17"]
[Round "1"]
[Board "10"]
[White "Ferreira, Kleber Victor"]
[Black "Silveira, Jorge Leal"]
[Result "1-0"]
[ECO "A00"]
[WhiteElo "2109"]
[BlackElo "0"]
[PlyCount "0"]
[EventDate "2012.06.17"]
[EventRounds "7"]
[EventCountry "BRA"]

1. e4 d6 2. Nc3 Nf6 3. f4 e5 4. Nf3 Nc6 5. Bb5 Bd7 6. O-O Nd4 7. Bc4 b5 8. Nxd4
bxc4 9. Nf3 exf4 10. Qe2 Ng4 11. Qxc4 Ne5 12. Qe2 Bg4 13. d4 Bxf3 14. gxf3 Nc6
15. Qc4 Na5 16. Qa4+ c6 17. Bxf4 Qb6 18. Nd5 Qd8 19. b4 1-0

[Event "IRT Rio de Janeiro de Inverno - Ta├ža David Borensztajn
[Site "Rio de Janeiro"]
[Date "2012.06.17"]
[Round "1"]
[Board "11"]
[White "Marques, Ubiratan de Azevedo"]
[Black "Frota, Alvaro"]
[Result "0-1"]
[ECO "A00"]
[WhiteElo "1800"]
[BlackElo "2096"]
[PlyCount "0"]
[EventDate "2012.06.17"]
[EventRounds "7"]
[EventCountry "BRA"]

1. e4 {[%csl Ge5]} e5 2. Nf3 Nc6 3. Bc4 Nf6 4. O-O Nxe4 5. Bd5 Nc5 6. Bxc6 dxc6
7. Nxe5 Bd6 8. Re1 O-O 9. d4 Ne6 10. Nf3 Nf4 11. Be3 Bg4 12. Qc1 Qf6 13. Nbd2
Rae8 14. Kh1 Re6 15. Ng1 Rfe8 16. Nf1 Qg6 17. Ng3 h5 18. f3 h4 19. fxg4 Qxg4
20. Qd1 Qxd1 21. Raxd1 hxg3 22. Bd2 gxh2 23. Nf3 Ne2 24. Ne5 Nxd4 25. Bf4 Nxc2
26. Re2 Nb4 27. Bxh2 Bxe5 28. Bxe5 Rxe5 29. Rxe5 Rxe5 30. Rd4 Nd5 31. b4 f5 32.
a3 f4 33. Kg1 g5 34. Kf2 g4 35. g3 f3 36. Rxg4+ Kf7 37. Rh4 Rf5 38. Rh7+ Ke6
39. Rg7 Nf6 40. g4 Rf4 41. g5 Ne4+ 42. Ke3 f2 0-1

[Event "IRT Rio de Janeiro de Inverno - Ta├ža David Borensztajn
[Site "Rio de Janeiro"]
[Date "2012.06.17"]
[Round "1"]
[Board "12"]
[White "Rodrigues, Nei Jorge"]
[Black "Morais, Wagner Soares de"]
[Result "1-0"]
[ECO "A00"]
[WhiteElo "2035"]
[BlackElo "1798"]
[PlyCount "0"]
[EventDate "2012.06.17"]
[EventRounds "7"]
[EventCountry "BRA"]

1. d4 Nf6 2. Bg5 g6 3. Nc3 Bg7 4. e4 d6 5. Bc4 c6 6. Nge2 O-O 7. Qd2 Nxe4 8.
Nxe4 d5 9. Bd3 dxe4 10. Bxe4 Nd7 11. Rd1 Nf6 12. Bf3 Be6 13. Nf4 Bf5 14. O-O
Qc7 15. Nd3 Rad8 16. c3 Rfe8 17. Bf4 Qa5 18. b4 Qb5 19. Nc5 Qb6 20. Be2 e5 21.
Bg3 exd4 22. Na4 Rxe2 23. Qxe2 Qb5 24. Qxb5 cxb5 25. Nc5 b6 26. Nb7 Rd7 27. Nd6
Be6 28. cxd4 Bxa2 29. Rc1 h5 30. Rc8+ Kh7 31. Nxb5 Nd5 32. Be5 f6 33. Ra1 fxe5
34. Rxa2 exd4 35. Rxa7 Rxa7 36. Nxa7 Nxb4 37. Rd8 d3 38. Nb5 d2 39. Rxd2 Bf8
40. Rd7+ Kh6 41. Nd6 Kg5 42. f3 Kf6 43. Rf7+ Ke6 44. Rxf8 Kxd6 45. Rf6+ Kc5 46.
Rxg6 b5 47. f4 Nd5 48. f5 b4 49. f6 Kd6 50. f7+ Ke7 51. Rg5 Nf6 52. f8=Q+ Kxf8
53. Rb5 Kf7 54. Rxb4 Kg6 55. Rb5 Ne4 56. Re5 Nc3 57. Kf1 Nd1 58. Ke1 Nc3 59.
Kd2 Nb1+ 60. Kd3 Na3 61. Ra5 1-0

[Event "IRT Rio de Janeiro de Inverno - Ta├ža David Borensztajn
[Site "Rio de Janeiro"]
[Date "2012.06.17"]
[Round "2"]
[Board "1"]
[White "Rodi, Luis Ernesto"]
[Black "Baeta, Marcio Netto"]
[Result "1-0"]
[ECO "A00"]
[WhiteElo "2358"]
[BlackElo "2147"]
[PlyCount "0"]
[EventDate "2012.06.17"]
[EventRounds "7"]
[EventCountry "BRA"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Nxc6 Qf6 6. Qf3 Qxc6 7. Nc3 Qf6
8. Qg3 c6 9. Bd3 Bd4 10. Bd2 Ne7 11. f4 Ng6 12. h4 Bxc3 13. bxc3 d6 14. Qg5
Qxg5 15. hxg5 Bg4 16. c4 O-O 17. f5 Ne5 18. Bc3 Rae8 19. Kd2 g6 20. f6 h5 21.
gxh6 Kh7 22. a4 Nd7 23. Rh4 Be6 24. a5 c5 25. g4 Ne5 26. Bxe5 dxe5 27. g5 Rd8
28. Kc3 Rd6 29. Rhh1 Rfd8 30. Rhb1 Bc8 31. Rb5 Rc6 32. Rab1 Rc7 33. Rg1 Rd4 34.
Ra1 Rd8 35. Rbb1 Rd6 36. Rg1 Be6 37. Raf1 Ra6 38. Ra1 Rd6 39. Rh1 Rd8 40. Raf1
Rcd7 41. Rhg1 Rd6 42. Rb1 Bc8 43. Be2 Rc6 44. Bg4 Bxg4 45. Rxg4 Rc7 46. Rgg1
Rd4 47. Rge1 Rcd7 48. Rb3 Rc7 49. Rbb1 Rcd7 50. Re3 Rc7 51. Re2 Rcd7 52. Ree1
Rd2 53. Rxb7 Rxb7 54. Kxd2 Rd7+ 55. Kc3 Rd4 56. Rb1 Rxe4 57. Rb7 1-0

[Event "IRT Rio de Janeiro de Inverno - Ta├ža David Borensztajn
[Site "Rio de Janeiro"]
[Date "2012.06.17"]
[Round "2"]
[Board "2"]
[White "Bil, Angelo"]
[Black "De Paiva, Pedro Henrique"]
[Result "0-1"]
[ECO "A00"]
[WhiteElo "2126"]
[BlackElo "2292"]
[PlyCount "0"]
[EventDate "2012.06.17"]
[EventRounds "7"]
[EventCountry "BRA"]

1. e4 c5 2. Nf3 d6 3. c3 Nf6 4. Be2 Nc6 5. d4 Qc7 6. O-O e6 7. Nbd2 Be7 8. Re1
O-O 9. Bf1 cxd4 10. Nxd4 a6 11. N2f3 Bd7 12. Bg5 Rfd8 13. c4 h6 14. Bh4 Ne5 15.
Rc1 Qa5 16. Qd2 Nxf3+ 17. Nxf3 Qb6 18. a3 a5 19. Bd3 Be8 20. Qe2 a4 21. h3 Ra5
22. g4 Bc6 23. Rcd1 Qc7 24. Bg3 Nd7 25. Nd4 Bf6 26. Bb1 Nf8 27. Rd2 Be8 28.
Red1 Qb6 29. Nf3 e5 30. Nh4 g6 31. Rd5 Ne6 32. Nf3 Rc5 33. Ba2 Be7 34. Qd2 Kh7
35. Qb4 Qc7 36. Qe1 Bc6 37. R5d2 Ra5 38. Bb1 Nc5 39. Bc2 Ra6 40. Rb1 Bd7 41.
Bh4 g5 42. Bg3 Be6 43. Qe2 Rb6 44. Rdd1 Ra8 45. Ne1 Nd7 46. Bd3 Nc5 47. Bc2 Nb3
48. Bxb3 Rxb3 49. Rbc1 Rc8 50. c5 dxc5 51. Nd3 c4 52. Bxe5 cxd3 53. Bxc7 dxe2
54. Re1 Rxb2 55. Ba5 0-1

[Event "IRT Rio de Janeiro de Inverno - Ta├ža David Borensztajn
[Site "Rio de Janeiro"]
[Date "2012.06.17"]
[Round "2"]
[Board "3"]
[White "Rego, Vinicius V. de Almeida"]
[Black "Okamura, Milton Kasuo"]
[Result "1/2-1/2"]
[ECO "A00"]
[WhiteElo "2268"]
[BlackElo "2118"]
[PlyCount "0"]
[EventDate "2012.06.17"]
[EventRounds "7"]
[EventCountry "BRA"]

1. d4 d5 2. e3 Nf6 3. Bd3 e6 4. Nd2 Bd6 5. f4 O-O 6. Ngf3 c5 7. c3 b6 8. Ne5
Ba6 9. Bxa6 Nxa6 10. Qe2 Qc8 11. g4 Qb7 12. g5 Ne4 13. Nxe4 dxe4 14. Rg1 b5 15.
Rg3 f6 16. gxf6 Rxf6 17. Bd2 Bxe5 18. fxe5 Rf3 19. Rg2 Nc7 20. O-O-O Raf8 21.
Rdg1 R8f7 22. Kb1 c4 23. h4 Nd5 24. h5 Qc6 25. Rg4 a5 26. Qg2 Qb7 27. h6 b4 28.
Rxg7+ Rxg7 29. Qxg7+ Qxg7 30. Rxg7+ Kf8 31. Rxh7 Rf2 32. Kc1 Rh2 33. Rb7 Rxh6
34. cxb4 axb4 35. Bxb4+ Ke8 36. Bd2 Rh1+ 37. Kc2 Rh2 38. Rb8+ Kd7 39. Kc1 Rh1+
40. Kc2 Rh2 41. Kd1 Rh1+ 1/2-1/2

[Event "IRT Rio de Janeiro de Inverno - Ta├ža David Borensztajn
[Site "Rio de Janeiro"]
[Date "2012.06.17"]
[Round "2"]
[Board "4"]
[White "Maia, Marco Aurelio Ferreira"]
[Black "Costa, Carlos Evanir"]
[Result "1/2-1/2"]
[ECO "A00"]
[WhiteElo "2115"]
[BlackElo "2223"]
[PlyCount "0"]
[EventDate "2012.06.17"]
[EventRounds "7"]
[EventCountry "BRA"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. cxd5 exd5 5. Bg5 Be7 6. e3 O-O 7. Bd3 Re8 8.
Qc2 h6 9. Bh4 c6 10. Nge2 Ne4 11. Bxe7 Qxe7 12. O-O Bf5 13. Rae1 Nd7 14. f3
Nxc3 15. Nxc3 Bxd3 16. Qxd3 Rad8 1/2-1/2

[Event "IRT Rio de Janeiro de Inverno - Ta├ža David Borensztajn
[Site "Rio de Janeiro"]
[Date "2012.06.17"]
[Round "2"]
[Board "5"]
[White "De Carvalho, Jose Jorge"]
[Black "Ferreira, Kleber Victor"]
[Result "1/2-1/2"]
[ECO "A00"]
[WhiteElo "2181"]
[BlackElo "2109"]
[PlyCount "0"]
[EventDate "2012.06.17"]
[EventRounds "7"]
[EventCountry "BRA"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Qf6 5. O-O Nge7 6. b4 Bb6 7. a4 a6 8. d3
h6 9. Be3 Ng6 10. Nfd2 O-O 11. Qf3 Qe7 12. g3 d6 13. Qh5 Qf6 14. Na3 Ba7 15.
Nf3 Nge7 16. Nh4 Be6 17. Bxa7 Nxa7 18. f4 exf4 19. Rac1 Qg5 20. Qxg5 hxg5 21.
Bxe6 fxe6 22. Nf3 fxg3 1/2-1/2

[Event "IRT Rio de Janeiro de Inverno - Ta├ža David Borensztajn
[Site "Rio de Janeiro"]
[Date "2012.06.17"]
[Round "2"]
[Board "6"]
[White "Frota, Alvaro"]
[Black "Chaves, Jorge Antonio Torres"]
[Result "1/2-1/2"]
[ECO "A00"]
[WhiteElo "2096"]
[BlackElo "2019"]
[PlyCount "0"]
[EventDate "2012.06.17"]
[EventRounds "7"]
[EventCountry "BRA"]

1. e4 e5 2. Nf3 Nf6 3. d4 Nxe4 4. dxe5 d5 5. Nbd2 Nc5 6. Nb3 Be7 7. Be3 Ne6 8.
Nfd4 Nxd4 9. Qxd4 Nc6 10. Qf4 g5 11. Qg3 Nb4 12. O-O-O Bf5 13. Nd4 Bg6 14. a3
c5 15. Bb5+ Kf8 16. axb4 cxd4 17. Bxd4 Bxb4 18. Bd3 Qa5 19. Kb1 Rg8 20. Qxg5
Rc8 21. Qh6+ Ke8 22. Bxg6 Rxg6 23. Qxh7 Qa4 24. Qh8+ Bf8 25. b3 Qc6 26. Rd2 Rh6
27. Qg8 Rg6 28. Qh8 Rh6 1/2-1/2

[Event "IRT Rio de Janeiro de Inverno - Ta├ža David Borensztajn
[Site "Rio de Janeiro"]
[Date "2012.06.17"]
[Round "2"]
[Board "7"]
[White "Paiva, Marcio Silveira"]
[Black "Machado, Wallace Fernandes"]
[Result "1-0"]
[ECO "A00"]
[WhiteElo "2010"]
[BlackElo "1854"]
[PlyCount "0"]
[EventDate "2012.06.17"]
[EventRounds "7"]
[EventCountry "BRA"]

1. d4 Nf6 2. Nf3 e6 3. Bg5 Be7 4. Nbd2 d5 5. e3 b6 6. Bd3 O-O 7. Ne5 Bb7 8. f4
c5 9. c3 h6 10. h4 Bc6 11. Qf3 Be8 12. g4 cxd4 13. exd4 Nh7 14. Bxe7 Qxe7 15.
g5 f6 16. Ng6 Bxg6 17. Bxg6 fxg5 18. Qd3 Nf6 19. hxg5 Nfd7 20. gxh6 Qf6 21.
hxg7 Qxg7 22. O-O-O Rxf4 23. Rh7 Qf6 24. Rg1 Kf8 25. Rf7+ Qxf7 26. Bxf7 Rxf7
27. Rf1 Rxf1+ 28. Qxf1+ Ke7 29. Qd3 a6 30. Qh7+ Kd6 31. Nf3 Ra7 32. Ne5 Nc6 33.
Nxc6 Kxc6 34. Qe7 Rc7 35. Qxe6+ Kb7 36. Qxd5+ Ka7 37. Qe6 Kb7 38. Kd2 Kb8 39.
b4 Kb7 40. c4 Ka7 41. c5 bxc5 42. d5 Kb8 43. Qe8+ Ka7 44. Qd8 1-0

[Event "IRT Rio de Janeiro de Inverno - Ta├ža David Borensztajn
[Site "Rio de Janeiro"]
[Date "2012.06.17"]
[Round "2"]
[Board "8"]
[White "Reis, Virginia Lagrange M."]
[Black "Mano, Leonardo"]
[Result "1/2-1/2"]
[ECO "A00"]
[WhiteElo "1849"]
[BlackElo "1999"]
[PlyCount "0"]
[EventDate "2012.06.17"]
[EventRounds "7"]
[EventCountry "BRA"]

1. e4 e6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Nd7 5. Nf3 Ndf6 6. Bd3 Be7 7. O-O Nxe4 8.
Bxe4 Nf6 9. Bd3 O-O 10. c3 b6 11. Re1 Bb7 12. Ng5 h6 13. Ne4 Nxe4 14. Bxe4 Bxe4
15. Rxe4 Bg5 16. Bxg5 Qxg5 1/2-1/2

[Event "IRT Rio de Janeiro de Inverno - Ta├ža David Borensztajn
[Site "Rio de Janeiro"]
[Date "2012.06.17"]
[Round "2"]
[Board "9"]
[White "Borensztajn, David"]
[Black "Diaz, Marcos"]
[Result "1/2-1/2"]
[ECO "A00"]
[WhiteElo "1938"]
[BlackElo "1750"]
[PlyCount "0"]
[EventDate "2012.06.17"]
[EventRounds "7"]
[EventCountry "BRA"]

1. c4 e5 2. g3 Nc6 3. Bg2 Bc5 4. Nc3 Nge7 5. Nf3 d6 6. d3 Bg4 7. O-O O-O 8. a3
a6 9. b4 Ba7 10. Rb1 Rb8 11. Qc2 Bxf3 12. exf3 Nd4 13. Qd1 c6 14. Be3 Nef5 15.
Bd2 Qe7 16. Re1 f6 17. a4 Rbd8 18. b5 Qf7 19. Rb2 Qg6 20. f4 Kh8 21. bxa6 bxa6
22. Rb7 Bc5 23. Qb1 a5 24. Ne4 exf4 25. Nxc5 dxc5 26. Bxf4 h5 27. Be4 h4 28.
Qd1 hxg3 29. hxg3 Rfe8 30. Kg2 Kg8 31. Rh1 Rxe4 32. dxe4 Nxg3 33. Bxg3 Qxe4+
34. f3 Qf5 35. Rh4 Ne6 36. Qe2 Rd3 37. Qe4 Rd2+ 38. Kf1 Qxe4 39. Rxe4 Nd4 40.
Re8+ Kh7 41. Bd6 Nxf3 42. Bf8 Nh2+ 43. Kg1 Nf3+ 44. Kf1 Nh2+ 1/2-1/2

[Event "IRT Rio de Janeiro de Inverno - Ta├ža David Borensztajn
[Site "Rio de Janeiro"]
[Date "2012.06.17"]
[Round "2"]
[Board "10"]
[White "Silveira, Jorge Leal"]
[Black "Mathow, Hermann Thomas M."]
[Result "1-0"]
[ECO "A00"]
[WhiteElo "0"]
[BlackElo "1920"]
[PlyCount "0"]
[EventDate "2012.06.17"]
[EventRounds "7"]
[EventCountry "BRA"]

1. Nf3 Nf6 2. g3 d5 3. Bg2 e6 4. O-O Bd6 5. d4 O-O 6. c4 dxc4 7. Qa4 c6 8. Qxc4
b5 9. Qc2 Bb7 10. e4 Bc7 11. Bg5 h6 12. Bxf6 Qxf6 13. e5 Qg6 14. Qc1 Bb6 15.
Nbd2 Rc8 16. b4 Nd7 17. Nb3 a5 18. a3 axb4 19. axb4 Rxa1 20. Qxa1 Qd3 21. Nc5
Nxc5 22. dxc5 Ra8 23. Qd4 Qxd4 24. Nxd4 Bc7 25. Bxc6 Bxc6 26. Nxc6 Ra6 27. Nd4
Bxe5 28. Nxb5 Kf8 29. Rd1 Ke8 30. f4 Ra1 31. Rf1 Rxf1+ 32. Kxf1 Bb2 33. Ke2 Kd7
34. Kd3 Kc6 35. Kc4 f6 36. Nd4+ Kd7 37. Kd3 Ke7 38. b5 e5 39. fxe5 fxe5 40.
Nf5+ Kd8 41. Nxg7 Bd4 42. Ne6+ 1-0

[Event "IRT Rio de Janeiro de Inverno - Ta├ža David Borensztajn
[Site "Rio de Janeiro"]
[Date "2012.06.17"]
[Round "2"]
[Board "11"]
[White "Silva Filho, Marlen Moura e"]
[Black "Marques, Ubiratan de Azevedo"]
[Result "0-1"]
[ECO "A00"]
[WhiteElo "1893"]
[BlackElo "1800"]
[PlyCount "0"]
[EventDate "2012.06.17"]
[EventRounds "7"]
[EventCountry "BRA"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Nf3 Bg7 5. h3 O-O 6. Be3 Nc6 7. Be2 Bd7 8. O-O
a6 9. a4 h6 10. Qd2 Kh7 11. Rad1 Qc8 12. e5 Ng8 13. exd6 exd6 14. Bd3 Re8 15.
Nd5 Nce7 16. Nxe7 Rxe7 17. b3 d5 18. Rfe1 c6 19. Bf4 Bf5 20. Rxe7 Nxe7 21. Re1
Be6 22. h4 Nf5 23. h5 Qd7 24. hxg6+ fxg6 25. c3 Rf8 26. Ne5 Qe7 27. Nxg6 Kxg6
28. g4 Qd7 29. Qe2 Kf7 30. gxf5 Bxf5 31. Qh5+ Kg8 32. Bf1 Bg4 33. Qg6 Rxf4 34.
Re8+ Rf8 35. Re3 Bf5 36. Qh5 Bg4 37. Qg6 Qf5 38. Qxf5 Bxf5 39. Be2 Bc2 40. c4
Bxd4 41. Rg3+ Kh8 42. cxd5 Bxf2+ 0-1

[Event "IRT Rio de Janeiro de Inverno - Ta├ža David Borensztajn
[Site "Rio de Janeiro"]
[Date "2012.06.22"]
[Round "3"]
[Board "1"]
[White "De Paiva, Pedro Henrique"]
[Black "Rodi, Luis Ernesto"]
[Result "0-1"]
[ECO "B10"]
[WhiteElo "2292"]
[BlackElo "2358"]
[PlyCount "96"]
[EventDate "2012.06.17"]
[EventRounds "7"]
[EventCountry "BRA"]

1. e4 c6 2. c4 d5 3. exd5 cxd5 4. Nf3 Nf6 5. d4 Nc6 6. Nc3 g6 7. Bf4 Bg7 8. h3
O-O 9. c5 Ne4 10. Rc1 Nxd4 11. Nxd4 e5 12. Be3 exd4 13. Bxd4 Re8 14. Be2 Bxd4
15. Qxd4 Qg5 16. Qe3 Qxe3 17. fxe3 Ng3 18. Rg1 Rxe3 19. Kf2 Nxe2 20. Kxe3 Nxc1
21. Rxc1 Be6 22. Kd4 Rd8 23. b4 Kf8 24. Nb5 Ke7 25. c6 b6 26. Rc3 Ra8 27. Ra3
a6 28. Nc7 Rc8 29. Nxd5+ Kd6 30. Nxb6 Rxc6 31. Rxa6 Kc7 32. Na8+ Kb7 33. Ra4
Rc8 34. b5 Rxa8 35. Rxa8 Kxa8 36. a4 Kb7 37. Kc5 f5 38. a5 Bd7 39. h4 f4 40. b6
Bc8 41. Kb5 Bd7+ 42. Kc5 Bg4 43. Kd5 f3 44. gxf3 Bxf3+ 45. Kd6 Ka6 46. Kc7 Bb7
47. Kb8 h6 48. Kc7 g5 0-1

[Event "IRT Rio de Janeiro de Inverno - Ta├ža David Borensztajn
[Site "Rio de Janeiro"]
[Date "2012.06.22"]
[Round "3"]
[Board "2"]
[White "Ferreira, Kleber Victor"]
[Black "Rego, Vinicius V. de Almeida"]
[Result "1/2-1/2"]
[ECO "A02"]
[WhiteElo "2109"]
[BlackElo "2268"]
[PlyCount "87"]
[EventDate "2012.06.17"]
[EventRounds "7"]
[EventCountry "BRA"]

1. f4 c5 2. Nf3 Nc6 3. e4 e6 4. Bb5 Nge7 5. O-O d5 6. Nc3 a6 7. Be2 b5 8. d3 d4
9. Nb1 Bb7 10. Qe1 Qb6 11. Kh1 Rc8 12. a3 a5 13. Qh4 a4 14. Nbd2 Na5 15. Qh5 c4
16. Ne5 g6 17. Qh4 cxd3 18. Bxd3 Bg7 19. Ng4 Nc4 20. Nf6+ Kd8 21. Nf3 h6 22.
Ne5 Nxe5 23. fxe5 g5 24. Qe1 Ng6 25. Bd2 Ra8 26. Nh5 Bxe5 27. Rxf7 Bc6 28. Qe2
Be8 29. Rf2 Ra7 30. Raf1 Rb7 31. Qe1 Bc7 32. Bb4 Kc8 33. Nf6 Bd6 34. Nxe8 Rxe8
35. Rf7 Bf4 36. Ba5 Qc6 37. Rxb7 Kxb7 38. Qb4 Bd6 39. Qxb5+ Qxb5 40. Bxb5 Ra8
41. Rf7+ Ne7 42. Bb4 Bxb4 43. axb4 Kb6 44. Bc4 1/2-1/2

[Event "IRT Rio de Janeiro de Inverno - Ta├ža David Borensztajn
[Site "Rio de Janeiro"]
[Date "2012.06.22"]
[Round "3"]
[Board "3"]
[White "Costa, Carlos Evanir"]
[Black "Frota, Alvaro"]
[Result "1-0"]
[ECO "C68"]
[WhiteElo "2223"]
[BlackElo "2096"]
[PlyCount "77"]
[EventDate "2012.06.17"]
[EventRounds "7"]
[EventCountry "BRA"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. d4 exd4 6. Qxd4 Qxd4 7. Nxd4 Bd7
8. O-O O-O-O 9. Be3 Re8 10. Nd2 Nf6 11. f3 Nd5 12. exd5 Rxe3 13. dxc6 Bxc6 14.
Nc4 Re8 15. Nxc6 bxc6 16. Rfe1 Bc5+ 17. Kf1 Bd6 18. g3 f6 19. Rxe8+ Rxe8 20.
Re1 Rxe1+ 21. Kxe1 Bc5 22. Ke2 Kd7 23. Kd3 Ke6 24. Na5 Bg1 25. h3 c5 26. Nc4
Bf2 27. g4 Kd5 28. b3 Bg1 29. f4 g6 30. Nd2 f5 31. Nf3 Bd4 32. c4+ Kd6 33. Nxd4
cxd4 34. gxf5 c5 35. fxg6 hxg6 36. b4 Kc6 37. bxc5 Kxc5 38. h4 a5 39. a4 1-0

[Event "IRT Rio de Janeiro de Inverno - Ta├ža David Borensztajn
[Site "Rio de Janeiro"]
[Date "2012.06.22"]
[Round "3"]
[Board "4"]
[White "Okamura, Milton Kasuo"]
[Black "De Carvalho, Jose Jorge"]
[Result "0-1"]
[ECO "D11"]
[WhiteElo "2118"]
[BlackElo "2181"]
[PlyCount "64"]
[EventDate "2012.06.17"]
[EventRounds "7"]
[EventCountry "BRA"]

1. d4 d5 2. c4 c6 3. Nf3 e6 4. e3 Nf6 5. Bd3 Nbd7 6. O-O dxc4 7. Bxc4 b5
8. Bd3 Bb7  9. Nbd2 a6 10. a4 Be7 11. b3 Nd5 12. Bb2 Nb4 13. Be2 O-O
14. Ne4 f5 15. Ng3 Qb6 16. Qd2 Rad8 17. Bc3 c5 18. Qb2 Nf6 19. axb5 axb5
20. Rfd1 Rd5 21. dxc5 Qxc5 22. Nd4 Qb6 23. h4 Rc8 24. h5 h6 25. Bf3 Rd7
26. Bxb7 Rxb7 27. Nf3 Rbc7 28. Bd4 Qc6 29. Ne5 Qe8 30. Ng6 Bd8 31. Rac1 Rxc1
32. Rxc1 Nd3 0-1

[Event "IRT Rio de Janeiro de Inverno - Ta├ža David Borensztajn
[Site "Rio de Janeiro"]
[Date "2012.06.22"]
[Round "3"]
[Board "5"]
[White "Baeta, Marcio Netto"]
[Black "Maia, Marco Aurelio Ferreira"]
[Result "0-1"]
[ECO "D10"]
[WhiteElo "2147"]
[BlackElo "2115"]
[PlyCount "42"]
[EventDate "2012.06.17"]
[EventRounds "7"]
[EventCountry "BRA"]

1. c4 c6 2. d4 d5 3. cxd5 cxd5 4. Nc3 Nc6 5. e4 dxe4 6. d5 Nb8 7. Qa4+ Bd7 8.
Bb5 Nf6 9. Bg5 a6 10. Nge2 Bxb5 11. Nxb5 Nbd7 12. Bxf6 axb5 13. Qxb5 gxf6 14.
Nc3 Bg7 15. d6 O-O 16. O-O-O e6 17. Qxb7 f5 18. f3 Nc5 19. Qb5 Nd3+ 20. Rxd3
exd3 21. Qxd3 Bxc3 0-1

[Event "IRT Rio de Janeiro de Inverno - Ta├ža David Borensztajn
[Site "Rio de Janeiro"]
[Date "2012.06.22"]
[Round "3"]
[Board "6"]
[White "Silveira, Jorge Leal"]
[Black "Bil, Angelo"]
[Result "0-1"]
[ECO "D79"]
[WhiteElo "0"]
[BlackElo "2126"]
[PlyCount "40"]
[EventDate "2012.06.17"]
[EventRounds "7"]
[EventCountry "BRA"]

1. Nf3 Nf6 2. g3 d5 3. Bg2 g6 4. O-O Bg7 5. c4 c6 6. cxd5 cxd5 7. d4 O-O 8. Nc3
Nc6 9. Bg5 Qa5 10. Qd2 Re8 11. a3 Ne4 12. Nxe4 dxe4 13. Ne5 Qxd2 14. Bxd2 Nxd4
15. Nc4 Nxe2+ 16. Kh1 Be6 17. Rac1 Nxc1 18. Rxc1 Rac8 19. Na5 Rxc1+ 20. Bxc1
Rd8 0-1

[Event "IRT Rio de Janeiro de Inverno - Ta├ža David Borensztajn
[Site "Rio de Janeiro"]
[Date "2012.06.22"]
[Round "3"]
[Board "7"]
[White "Marques, Ubiratan de Azevedo"]
[Black "Rodrigues, Nei Jorge"]
[Result "0-1"]
[ECO "B06"]
[WhiteElo "1800"]
[BlackElo "2035"]
[PlyCount "154"]
[EventDate "2012.06.17"]
[EventRounds "7"]
[EventCountry "BRA"]

1. e4 g6 2. d4 Bg7 3. Nf3 c6 4. c3 d6 5. Be3 Nf6 6. Nbd2 Qc7 7. Bd3 Nbd7 8. Rc1
e5 9. Bb1 O-O 10. O-O Re8 11. Re1 Nf8 12. h3 Bd7 13. Bg5 Ne6 14. Be3 Nh5 15.
Nc4 b5 16. Ncd2 c5 17. Nb3 Rad8 18. d5 Nef4 19. c4 a6 20. Kh2 Qc8 21. Ng1 Nf6
22. Nd2 h6 23. b4 g5 24. bxc5 dxc5 25. cxb5 axb5 26. Bxc5 Qb8 27. Bb4 g4 28.
Qb3 gxh3 29. gxh3 N6h5 30. Nf1 Rc8 31. Ng3 Qb6 32. Qf3 Nf6 33. N3e2 Ng6 34. Ng3
Nh7 35. Bd2 Nh4 36. Qe2 Qf6 37. Nh5 Qg6 38. f4 exf4 39. Nxg7 Qg3+ 40. Kh1 Kxg7
41. Qh2 Ng5 42. Bxf4 Qxh2+ 43. Bxh2 Nxh3 44. Rxc8 Rxc8 45. Nxh3 Bxh3 46. Be5+
f6 47. Bf4 Nf3 48. Rc1 Rxc1+ 49. Bxc1 h5 50. Bd3 Bd7 51. Be3 Ne5 52. Be2 Kg6
53. Kg2 Nf7 54. Bd4 Nd6 55. Bd3 Kf7 56. Kg3 Ne8 57. Kh4 Ng7 58. e5 fxe5 59.
Bxe5 Nf5+ 60. Kxh5 Ne3 61. Be4 Nc4 62. Ba1 Ke7 63. Kg5 Kd6 64. Kf6 Bg4 65. Be5+
Nxe5 66. Kg5 Be2 67. Kf4 Bc4 68. a3 Bxd5 69. Bc2 Nc4 70. a4 b4 71. Bf5 Bc6 72.
Bd3 Kc5 73. Bc2 Kd4 74. Bb3 Kc3 75. Bd1 Nb2 76. Bf3 Bxf3 77. Kxf3 Nxa4 0-1

[Event "IRT Rio de Janeiro de Inverno - Ta├ža David Borensztajn
[Site "Rio de Janeiro"]
[Date "2012.06.22"]
[Round "3"]
[Board "8"]
[White "Morais, Wagner Soares de"]
[Black "Paiva, Marcio Silveira"]
[Result "0-1"]
[ECO "D00"]
[WhiteElo "1798"]
[BlackElo "2010"]
[PlyCount "36"]
[EventDate "2012.06.17"]
[EventRounds "7"]
[EventCountry "BRA"]

1. d4 d5 2. e3 Nf6 3. Bd3 c5 4. c3 Nc6 5. Nd2 e5 6. dxe5 Nxe5 7. Bc2 Bg4 8.
Ngf3 Bd6 9. O-O O-O 10. b3 Qe7 11. Bb2 Rfd8 12. Re1 Ne4 13. Nf1 Ng5 14. N1d2
Qf6 15. Rb1 Ngxf3+ 16. gxf3 Nxf3+ 17. Nxf3 Bxf3 18. Qd3 Qg5+ 0-1

[Event "IRT Rio de Janeiro de Inverno - Ta├ža David Borensztajn
[Site "Rio de Janeiro"]
[Date "2012.06.22"]
[Round "3"]
[Board "9"]
[White "Chaves, Jorge Antonio Torres"]
[Black "Reis, Virginia Lagrange M."]
[Result "1/2-1/2"]
[ECO "A59"]
[WhiteElo "2019"]
[BlackElo "1849"]
[PlyCount "92"]
[EventDate "2012.06.17"]
[EventRounds "7"]
[EventCountry "BRA"]

1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6 g6 6. Nc3 Bxa6 7. e4 Bxf1 8.
Kxf1 d6 9. g3 Bg7 10. Kg2 O-O 11. Nf3 Nbd7 12. h3 Qa5 13. Re1 Ne8 14. Re2 Nc7
15. Rc2 Rfb8 16. a3 Rb3 17. Bd2 Qa6 18. Be1 Rab8 19. Rb1 Ne5 20. Nxe5 Bxe5 21.
f4 Bd4 22. Bf2 Bxc3 23. Rxc3 Rxb2 24. Rxb2 Rxb2 25. Rb3 Rxb3 26. Qxb3 Qb5 27.
Qf3 Qa4 28. f5 Nb5 29. fxg6 hxg6 30. h4 Qxa3 31. Qg4 Qd3 32. Be1 Nd4 33. Bf2
Qe2 34. Qxe2 Nxe2 35. Kf3 Nd4+ 36. Ke3 e6 37. Kd3 e5 38. g4 Kg7 39. Be3 Nf3 40.
Bf2 Nh2 41. g5 Nf3 42. Ke3 Nd4 43. Kd3 f6 44. gxf6+ Kxf6 45. Ke3 Kg7 46. Kd3
Nf3 1/2-1/2

[Event "IRT Rio de Janeiro de Inverno - Ta├ža David Borensztajn
[Site "Rio de Janeiro"]
[Date "2012.06.22"]
[Round "3"]
[Board "10"]
[White "Mano, Leonardo"]
[Black "Borensztajn, David"]
[Result "1/2-1/2"]
[ECO "B40"]
[WhiteElo "1999"]
[BlackElo "1938"]
[PlyCount "30"]
[EventDate "2012.06.17"]
[EventRounds "7"]
[EventCountry "BRA"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Qc7 5. Be3 Nf6 6. Nd2 Bb4 7. c3 Be7 8.
Be2 d6 9. O-O b6 10. f4 Bb7 11. Bf3 Nbd7 12. N4b3 O-O 13. Qe1 Rfe8 14. g4 Nc5
15. Nxc5 bxc5 1/2-1/2

[Event "IRT Rio de Janeiro de Inverno - Ta├ža David Borensztajn
[Site "Rio de Janeiro"]
[Date "2012.06.22"]
[Round "3"]
[Board "11"]
[White "Diaz, Marcos"]
[Black "Mathow, Hermann Thomas M."]
[Result "0-1"]
[ECO "B06"]
[WhiteElo "1750"]
[BlackElo "1920"]
[PlyCount "74"]
[EventDate "2012.06.17"]
[EventRounds "7"]
[EventCountry "BRA"]

1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. Bd3 Bg4 5. Be3 c5 6. c3 cxd4 7. cxd4 Nc6 8.
Nbd2 Nf6 9. O-O O-O 10. h3 Bd7 11. Rc1 Rc8 12. Bb1 e6 13. Bg5 Qe8 14. Re1 h6
15. Bh4 Nh7 16. Nf1 e5 17. dxe5 dxe5 18. a3 Nd4 19. N1d2 g5 20. Bg3 Nxf3+ 21.
Nxf3 f6 22. h4 Bg4 23. hxg5 Nxg5 24. Qb3+ Kh8 25. Nxg5 fxg5 26. Qxb7 Rb8 27.
Qxa7 Rxb2 28. Rc7 Rg8 29. Re7 Qb5 30. Qc7 Rxb1 31. f3 Rxe1+ 32. Bxe1 Rc8 33.
Qd6 Qe2 34. Qb4 Bf8 35. Bg3 Bxe7 36. Bxe5+ Kg8 37. Qxe7 Qe1+ 0-1

[Event "IRT Rio de Janeiro de Inverno - Ta├ža David Borensztajn
[Site "Rio de Janeiro"]
[Date "2012.06.22"]
[Round "3"]
[Board "12"]
[White "Machado, Wallace Fernandes"]
[Black "Silva Filho, Marlen Moura e"]
[Result "1/2-1/2"]
[ECO "A30"]
[WhiteElo "1854"]
[BlackElo "1893"]
[PlyCount "45"]
[EventDate "2012.06.17"]
[EventRounds "7"]
[EventCountry "BRA"]

1. c4 c5 2. Nf3 b6 3. g3 Bb7 4. Bg2 Nf6 5. O-O g6 6. Nc3 Bg7 7. d3 O-O 8. Qc2
d6 9. b3 Nbd7 10. Bb2 e6 11. Rad1 Qe7 12. Qc1 Rad8 13. d4 cxd4 14. Rxd4 d5 15.
cxd5 Nxd5 16. Nxd5 Bxd5 17. Rd2 Bxb2 18. Qxb2 Rc8 19. Rfd1 Rfd8 20. b4 Nf6 21.
b5 Bxf3 22. Rxd8+ Rxd8 23. Rxd8+ 1/2-1/2

[Event "IRT Rio de Janeiro de Inverno - Ta├ža David Borensztajn
[Site "Rio de Janeiro"]
[Date "2012.06.23"]
[Round "4"]
[Board "1"]
[White "Rodi, Luis Ernesto"]
[Black "Costa, Carlos Evanir"]
[Result "1-0"]
[ECO "B23"]
[WhiteElo "2358"]
[BlackElo "2223"]
[PlyCount "97"]
[EventDate "2012.06.17"]
[EventRounds "7"]
[EventCountry "BRA"]

1. e4 c5 2. Nc3 e6 3. Nf3 a6 4. g3 b5 5. Bg2 Bb7 6. d4 b4 7. Na4 Bxe4 8. Nxc5
Bc6 9. O-O Nf6 10. Re1 Be7 11. a3 a5 12. Bd2 Qb6 13. axb4 axb4 14. Be3 Nd5 15.
Qd2 O-O 16. Ne5 Rxa1 17. Rxa1 Nxe3 18. Bxc6 Nc4 19. Nxc4 Qxc6 20. Qxb4 d6 21.
Nd3 h5 22. Ne3 Bg5 23. Qd2 h4 24. gxh4 Bxh4 25. d5 exd5 26. Nb4 Qb5 27. Nexd5
Nd7 28. Qf4 Ne5 29. Ra3 Ng6 30. Qf3 Re8 31. Re3 Rxe3 32. Qxe3 Qd7 33. Qe4 Qh3
34. Nd3 Bg5 35. Ne3 Nh4 36. Ne1 f5 37. Qe8+ Kh7 38. Qh5+ Bh6 39. Nxf5 Qxf5 40.
Qxh4 Qe5 41. Nd3 Qe2 42. Qc4 Qf3 43. Ne1 Qf6 44. Qe4+ g6 45. b4 Qg5+ 46. Kf1 d5
47. Qf3 Qd2 48. b5 Qb4 49. Qxd5 1-0

[Event "IRT Rio de Janeiro de Inverno - Ta├ža David Borensztajn
[Site "Rio de Janeiro"]
[Date "2012.06.23"]
[Round "4"]
[Board "2"]
[White "De Carvalho, Jose Jorge"]
[Black "Maia, Marco Aurelio Ferreira"]
[Result "0-1"]
[ECO "A06"]
[WhiteElo "2181"]
[BlackElo "2115"]
[PlyCount "72"]
[EventDate "2012.06.17"]
[EventRounds "7"]
[EventCountry "BRA"]

1. Nf3 d5 2. c4 c6 3. Qb3 Nf6 4. g3 e6 5. Bg2 Be7 6. O-O O-O 7. d4 Nbd7 8. Nc3
b6 9. Bf4 Nh5 10. Bd2 Nhf6 11. Rac1 Bb7 12. Rfd1 Rc8 13. cxd5 exd5 14. Bh3 Ra8
15. Nh4 g6 16. Qc2 Re8 17. Bg2 Rc8 18. Bh3 Ra8 19. Bh6 Nf8 20. Nf3 Bd6 21. Ng5
Bc8 22. Bxc8 Rxc8 23. f3 Qe7 24. e4 dxe4 25. Ngxe4 Ne6 26. Qa4 c5 27. Nxf6+
Qxf6 28. Ne4 Qxf3 29. Nxd6 Nxd4 30. Qxd4 cxd4 31. Rf1 Rxc1 32. Bxc1 Qe2 33.
Nxf7 Qxf1+ 34. Kxf1 Kxf7 35. Kf2 Rc8 36. Bf4 Rc2+ 0-1

[Event "IRT Rio de Janeiro de Inverno - Ta├ža David Borensztajn
[Site "Rio de Janeiro"]
[Date "2012.06.23"]
[Round "4"]
[Board "4"]
[White "Rego, Vinicius V. de Almeida"]
[Black "Paiva, Marcio Silveira"]
[Result "1-0"]
[ECO "D56"]
[WhiteElo "2268"]
[BlackElo "2010"]
[PlyCount "49"]
[EventDate "2012.06.17"]
[EventRounds "7"]
[EventCountry "BRA"]

1. c4 Nf6 2. Nc3 e6 3. Nf3 d5 4. d4 Be7 5. Bg5 h6 6. Bh4 O-O 7. e3 Nbd7 8. Be2
b6 9. cxd5 exd5 10. O-O Bb7 11. Rc1 a6 12. Qc2 c5 13. dxc5 bxc5 14. Rfd1 Nb6
15. Rd2 Qd7 16. Qb3 Qe6 17. a4 a5 18. Rdd1 Rfd8 19. Nb5 Rd7 20. Bg3 Rc8 21.
Nbd4 cxd4 22. Nxd4 Qe4 23. Qxb6 Rxc1 24. Rxc1 Ne8 25. Bb5 1-0

[Event "IRT Rio de Janeiro de Inverno - Ta├ža David Borensztajn
[Site "Rio de Janeiro"]
[Date "2012.06.23"]
[Round "4"]
[Board "5"]
[White "Bil, Angelo"]
[Black "Ferreira, Kleber Victor"]
[Result "1/2-1/2"]
[ECO "C63"]
[WhiteElo "2126"]
[BlackElo "2109"]
[PlyCount "70"]
[EventDate "2012.06.17"]
[EventRounds "7"]
[EventCountry "BRA"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 f5 4. d3 fxe4 5. dxe4 Nf6 6. O-O Bc5 7. Qd3 Qe7 8.
Nc3 Nb4 9. Qe2 O-O 10. a3 Na6 11. Bg5 c6 12. Bc4+ Kh8 13. Rad1 d6 14. Na4 b5
15. Nxc5 Nxc5 16. Bd3 Bg4 17. Qe3 Ne6 18. Be2 Nxg5 19. Qxg5 h6 20. Qe3 Bxf3 21.
Bxf3 Rad8 22. Rfe1 Nh7 23. Rd3 Ng5 24. Bg4 Rf6 25. Rc3 c5 26. Rd3 Rdf8 27. f3
Nf7 28. Red1 g6 29. R3d2 Kh7 30. h4 h5 31. Bh3 Kg7 32. Rf1 Nd8 33. Qb3 a6 34.
Qd5 Qc7 35. Qa8 Qb6 1/2-1/2

[Event "IRT Rio de Janeiro de Inverno - Ta├ža David Borensztajn
[Site "Rio de Janeiro"]
[Date "2012.06.23"]
[Round "4"]
[Board "6"]
[White "Frota, Alvaro"]
[Black "Okamura, Milton Kasuo"]
[Result "1-0"]
[ECO "B84"]
[WhiteElo "2096"]
[BlackElo "2118"]
[PlyCount "43"]
[EventDate "2012.06.17"]
[EventRounds "7"]
[EventCountry "BRA"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. f4 a6 7. Be3 d6 8. Be2
Nf6 9. Bf3 Bd7 10. Qe2 Be7 11. g4 h6 12. O-O-O O-O-O 13. h4 Na5 14. g5 Nh7 15.
f5 hxg5 16. Bg4 Qc4 17. Qd2 gxh4 18. fxe6 fxe6 19. Nxe6 Nf6 20. Nd5 Qxa2 21.
Nxe7+ Kb8 22. Qxd6+ 1-0

[Event "IRT Rio de Janeiro de Inverno - Ta├ža David Borensztajn
[Site "Rio de Janeiro"]
[Date "2012.06.23"]
[Round "4"]
[Board "7"]
[White "Mathow, Hermann Thomas M."]
[Black "Baeta, Marcio Netto"]
[Result "0-1"]
[ECO "B30"]
[WhiteElo "1920"]
[BlackElo "2147"]
[PlyCount "102"]
[EventDate "2012.06.17"]
[EventRounds "7"]
[EventCountry "BRA"]

1. e4 c5 2. Nf3 Nc6 3. Bb5 Na5 4. O-O a6 5. Be2 d6 6. d4 cxd4 7. Nxd4 Nf6 8.
Nc3 e5 9. Nf3 b5 10. b4 Nc4 11. Bg5 Be7 12. Bxc4 bxc4 13. Qe2 Bb7 14. Rfe1 Qb6
15. a3 O-O 16. Rad1 Rac8 17. Bxf6 Bxf6 18. Nd5 Bxd5 19. Rxd5 a5 20. Rxa5 Ra8
21. Rxa8 Rxa8 22. Qxc4 Rxa3 23. Qc8+ Qd8 24. Qxd8+ Bxd8 25. Rd1 Kf8 26. Nxe5
dxe5 27. Rxd8+ Ke7 28. Rd1 Rc3 29. Rc1 Kd6 30. Kf1 Kc6 31. Ke2 Kb5 32. Kd2 Rc4
33. c3 Rxe4 34. g3 Rc4 35. Ra1 Kb6 36. Kd3 Rc7 37. Ra2 f5 38. Rc2 Kb5 39. f3
Rd7+ 40. Ke3 Kc4 41. Rd2 Re7 42. Rc2 Kb3 43. Kd2 Rd7+ 44. Kc1 e4 45. fxe4 fxe4
46. b5 Ra7 47. b6 Ra1+ 48. Kd2 e3+ 49. Kxe3 Kxc2 50. c4 Kc3 51. c5 Rb1 0-1

[Event "IRT Rio de Janeiro de Inverno - Ta├ža David Borensztajn
[Site "Rio de Janeiro"]
[Date "2012.06.23"]
[Round "4"]
[Board "8"]
[White "Chaves, Jorge Antonio Torres"]
[Black "Silveira, Jorge Leal"]
[Result "1-0"]
[ECO "E95"]
[WhiteElo "2019"]
[BlackElo "0"]
[PlyCount "85"]
[EventDate "2012.06.17"]
[EventRounds "7"]
[EventCountry "BRA"]

1. d4 Nf6 2. Nf3 d6 3. c4 g6 4. Nc3 c6 5. e4 Bg7 6. Be2 Nbd7 7. O-O e5 8. h3
O-O 9. Re1 Re8 10. Bf1 exd4 11. Nxd4 Nc5 12. f3 Qb6 13. Kh2 Nh5 14. Nde2 Qc7
15. g3 Be6 16. Nf4 Nxf4 17. Bxf4 Be5 18. Bxe5 dxe5 19. b4 Rad8 20. Qc2 Nd7 21.
Red1 Nb6 22. c5 Nd7 23. Qf2 Nf8 24. a4 Bc8 25. Bc4 Be6 26. Bf1 Bc8 27. f4 f6
28. Kh1 Qf7 29. Qb2 Rd4 30. Rd2 Red8 31. Rad1 Be6 32. Rxd4 exd4 33. Nb1 Bc4 34.
Nd2 Bxf1 35. Rxf1 Qd7 36. Kh2 f5 37. e5 Qe6 38. Rf3 Qd5 39. Rd3 Ne6 40. b5 g5
41. Qb3 gxf4 42. gxf4 Nxf4 43. Rxd4 1-0

[Event "IRT Rio de Janeiro de Inverno - Ta├ža David Borensztajn
[Site "Rio de Janeiro"]
[Date "2012.06.23"]
[Round "4"]
[Board "9"]
[White "Marques, Ubiratan de Azevedo"]
[Black "Mano, Leonardo"]
[Result "1-0"]
[ECO "C10"]
[WhiteElo "1800"]
[BlackElo "1999"]
[PlyCount "109"]
[EventDate "2012.06.17"]
[EventRounds "7"]
[EventCountry "BRA"]

1. e4 e6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nd7 5. c3 Ngf6 6. Bd3 Be7 7. Ne2 O-O 8.
f4 b6 9. O-O Bb7 10. N2g3 c5 11. b3 cxd4 12. cxd4 Rc8 13. Bb2 Nd5 14. Qh5 N7f6
15. Qh3 h6 16. Rae1 Bb4 17. Nxf6+ Nxf6 18. Rxe6 fxe6 19. Qxe6+ Kh8 20. Qh3 Bc3
21. Bxc3 Rxc3 22. Nf5 Ng8 23. Rd1 Qd5 24. Qg4 Qxg2+ 25. Qxg2 Bxg2 26. Nh4 g5
27. Ng6+ Kg7 28. Nxf8 Bf3 29. Ne6+ Kf6 30. fxg5+ Kxe6 31. Re1+ Kf7 32. Bc4+ Kg7
33. Re8 Rxc4 34. gxh6+ Kxh6 35. bxc4 Kg7 36. Kf2 Bb7 37. Ke3 Kf7 38. Re5 Nf6
39. Kf4 Ba6 40. c5 Bb7 41. cxb6 axb6 42. Rb5 Bc6 43. Rf5 Ke6 44. Re5+ Kf7 45.
h4 Bd5 46. a3 Bc4 47. h5 b5 48. Rg5 Be2 49. h6 Bd3 50. Ke5 Ne8 51. d5 Ke7 52.
Rg3 Bc2 53. Rg8 Kf7 54. Rg2 Bd3 55. d6 1-0

[Event "IRT Rio de Janeiro de Inverno - Ta├ža David Borensztajn
[Site "Rio de Janeiro"]
[Date "2012.06.23"]
[Round "4"]
[Board "10"]
[White "Borensztajn, David"]
[Black "Morais, Wagner Soares de"]
[Result "1/2-1/2"]
[ECO "A36"]
[WhiteElo "1938"]
[BlackElo "1798"]
[PlyCount "78"]
[EventDate "2012.06.17"]
[EventRounds "7"]
[EventCountry "BRA"]

1. c4 Nf6 2. g3 c5 3. Bg2 Nc6 4. Nc3 g6 5. d3 Bg7 6. a3 a5 7. Nf3 O-O 8. O-O
Rb8 9. Rb1 Ne8 10. e3 Nc7 11. Nd5 b5 12. Nd2 bxc4 13. Nxc7 c3 14. Nd5 cxb2 15.
Bxb2 Rxb2 16. Rxb2 Bxb2 17. Qb3 Bg7 18. Rc1 d6 19. d4 Nxd4 20. exd4 Bxd4 21.
Nf3 Bg7 22. Re1 e6 23. Ne3 d5 24. Rd1 Qc7 25. Qc2 Bd7 26. h4 Rb8 27. h5 Rb2 28.
Qc1 c4 29. hxg6 hxg6 30. Nd4 Qb6 31. Ndc2 c3 32. Bxd5 exd5 33. Nxd5 Qa7 34.
Nce3 Qc5 35. Nxc3 Qxc3 36. Qxc3 Bxc3 37. Rxd7 Ra2 38. Nc4 Ra1+ 39. Kg2 Ra2
1/2-1/2

[Event "IRT Rio de Janeiro de Inverno - Ta├ža David Borensztajn
[Site "Rio de Janeiro"]
[Date "2012.06.23"]
[Round "4"]
[Board "11"]
[White "Silva Filho, Marlen Moura e"]
[Black "Diaz, Marcos"]
[Result "1/2-1/2"]
[ECO "C41"]
[WhiteElo "1893"]
[BlackElo "1750"]
[PlyCount "123"]
[EventDate "2012.06.17"]
[EventRounds "7"]
[EventCountry "BRA"]

1. e4 e5 2. Nf3 d6 3. d4 exd4 4. Nxd4 Nf6 5. Nc3 Be7 6. Be2 c5 7. Nf3 O-O 8.
O-O Nc6 9. h3 h6 10. Bf4 Ne8 11. Nd5 Be6 12. Nxe7+ Qxe7 13. c4 Rd8 14. a3 Nf6
15. Qc2 Ne5 16. Nxe5 dxe5 17. Bxe5 Bd7 18. Bxf6 Qxf6 19. Rad1 Qg6 20. Kh2 Bc6
21. Bf3 Qg5 22. Qe2 Qf4+ 23. g3 Qe5 24. Bg2 Rd4 25. Rxd4 cxd4 26. f4 Qc7 27.
Rd1 Rd8 28. b3 Qb6 29. Rd3 a5 30. e5 Bd7 31. Qd2 Bf5 32. g4 Bxd3 33. Qxd3 Qc5
34. a4 b6 35. Kg3 Qb4 36. Kf3 Qc3 37. Ke2 Qb2+ 38. Kf3 Qc3 39. Ke2 Qc1 40. Kf3
Qe1 41. Bf1 Qc3 42. Be2 Qc1 43. Bd1 Qc3 44. Be2 Qc1 45. Bd1 Qe3+ 46. Qxe3 dxe3
47. Be2 Rd2 48. Kxe3 Rb2 49. Bd1 Rb1 50. Kd2 Kf8 51. Kc2 Ra1 52. Kd2 Ke7 53. f5
g6 54. h4 g5 55. h5 Kd7 56. Bf3 Ra2+ 57. Kd3 Rb2 58. Bd1 Rf2 59. Be2 Rf4 60.
Ke3 Kc7 61. Bf3 Kd7 62. Be2 1/2-1/2

[Event "IRT Rio de Janeiro de Inverno - Ta├ža David Borensztajn
[Site "Rio de Janeiro"]
[Date "2012.06.23"]
[Round "5"]
[Board "1"]
[White "Maia, Marco Aurelio Ferreira"]
[Black "Rodi, Luis Ernesto"]
[Result "0-1"]
[ECO "A89"]
[WhiteElo "2115"]
[BlackElo "2358"]
[PlyCount "138"]
[EventDate "2012.06.17"]
[EventRounds "7"]
[EventCountry "BRA"]

1. d4 f5 2. g3 Nf6 3. Bg2 g6 4. c4 Bg7 5. Nc3 d6 6. Nf3 O-O 7. O-O Nc6 8. d5
Ne5 9. Nxe5 dxe5 10. b3 a6 11. Bb2 Qe8 12. Na4 Nh5 13. Nc5 Rb8 14. Nd3 e4 15.
Bxg7 Kxg7 16. Nf4 Nxf4 17. gxf4 Bd7 18. Qd4+ Kg8 19. Kh1 e6 20. dxe6 Qxe6 21.
Rad1 Bc6 22. e3 Qe7 23. Qa1 Rfd8 24. Rd4 Rxd4 25. exd4 Qd6 26. d5 Bd7 27. Qe5
Re8 28. Qxd6 cxd6 29. Re1 Kf7 30. Re3 h6 31. h4 Kf6 32. Rg3 b5 33. Bf1 Rc8 34.
Be2 b4 35. Kg1 a5 36. Kf1 Ra8 37. Bd1 a4 38. Ke1 axb3 39. axb3 Ra2 40. Be2 Be8
41. Bd1 Bf7 42. Be2 Ra8 43. Bd1 Ra2 44. Be2 Be8 45. Bd1 Ke7 46. Be2 Ra1+ 47.
Kd2 Rh1 48. h5 g5 49. fxg5 f4 50. Rg4 hxg5 51. Rxg5 f3 52. Bd1 Bxh5 53. Bc2 Kf6
54. Rg8 Bg6 55. Rxg6+ Kxg6 56. Bxe4+ Kf6 57. Bxf3 Rf1 58. Ke3 Rb1 59. Kd4 Rxb3
60. Be4 Rc3 61. Bb1 Rc1 62. Ba2 Kf5 63. Bb3 Kf4 64. Ba4 Kf3 65. Kd3 Rc3+ 66.
Kd4 Kxf2 67. Bb5 Rc1 68. c5 Rxc5 69. Bd3 Ke1 0-1

[Event "IRT Rio de Janeiro de Inverno - Ta├ža David Borensztajn
[Site "Rio de Janeiro"]
[Date "2012.06.23"]
[Round "5"]
[Board "2"]
[White "Rodrigues, Nei Jorge"]
[Black "Rego, Vinicius V. de Almeida"]
[Result "1/2-1/2"]
[ECO "A40"]
[WhiteElo "2035"]
[BlackElo "2268"]
[PlyCount "69"]
[EventDate "2012.06.17"]
[EventRounds "7"]
[EventCountry "BRA"]

1. d4 g6 2. e3 Bg7 3. Bd3 Nf6 4. f4 d6 5. c3 O-O 6. Nf3 Nc6 7. O-O e5 8. Nbd2
Qe7 9. Ne4 Nxe4 10. Bxe4 exf4 11. Bxc6 bxc6 12. exf4 Bg4 13. h3 Bf5 14. Qa4 Qd7
15. Bd2 Rfb8 16. b3 a5 17. Rfe1 Bf8 18. Re3 c5 19. Qxd7 Bxd7 20. dxc5 dxc5 21.
Ne5 Be8 22. c4 a4 23. Rf1 axb3 24. axb3 f6 25. Ng4 Kf7 26. f5 g5 27. Re6 Bg7
28. Rfe1 h5 29. Nf2 Rd8 30. Bc3 Bd7 31. Re7+ Kg8 32. g4 Bf8 33. R7e3 Kf7 34.
Ne4 Ra6 35. Rd1 1/2-1/2

[Event "IRT Rio de Janeiro de Inverno - Ta├ža David Borensztajn
[Site "Rio de Janeiro"]
[Date "2012.06.23"]
[Round "5"]
[Board "3"]
[White "Costa, Carlos Evanir"]
[Black "De Carvalho, Jose Jorge"]
[Result "1-0"]
[ECO "D31"]
[WhiteElo "2223"]
[BlackElo "2181"]
[PlyCount "47"]
[EventDate "2012.06.17"]
[EventRounds "7"]
[EventCountry "BRA"]

1. d4 d5 2. c4 c6 3. Nc3 e6 4. e4 dxe4 5. Nxe4 Bb4+ 6. Bd2 Qxd4 7. Bxb4 Qxe4+
8. Be2 Na6 9. Ba5 b6 10. Bc3 f6 11. Nf3 e5 12. O-O Ne7 13. Nxe5 fxe5 14. Bh5+
g6 15. Re1 Qh4 16. Bf3 O-O 17. Re4 Qf6 18. Rxe5 Be6 19. Re4 Qf5 20. Qd4 Kf7 21.
Rf4 Nc5 22. Rxf5+ Nxf5 23. Qf6+ Kg8 24. Qh8+ 1-0

[Event "IRT Rio de Janeiro de Inverno - Ta├ža David Borensztajn
[Site "Rio de Janeiro"]
[Date "2012.06.23"]
[Round "5"]
[Board "4"]
[White "Ferreira, Kleber Victor"]
[Black "Frota, Alvaro"]
[Result "1-0"]
[ECO "C28"]
[WhiteElo "2109"]
[BlackElo "2096"]
[PlyCount "59"]
[EventDate "2012.06.17"]
[EventRounds "7"]
[EventCountry "BRA"]

1. e4 e5 2. Nc3 Nf6 3. Bc4 Nc6 4. d3 d6 5. f4 Bg4 6. Nge2 exf4 7. Bxf4 Nh5 8.
O-O Qd7 9. Bg5 f6 10. Be3 O-O-O 11. Bb5 a6 12. Ba4 Re8 13. Qd2 f5 14. Nd4 b5
15. Nxc6 Qxc6 16. Bb3 Nf6 17. a4 b4 18. Nd5 Qb7 19. Nxb4 d5 20. Nxd5 fxe4 21.
dxe4 Nxe4 22. Qa5 Bd6 23. Bc4 Kd8 24. Bxa6 Qb8 25. c4 Re5 26. Bb5 Rh5 27. Bf4
Rxd5 28. cxd5 Bc5+ 29. Kh1 g5 30. Qe1 1-0

[Event "IRT Rio de Janeiro de Inverno - Ta├ža David Borensztajn
[Site "Rio de Janeiro"]
[Date "2012.06.23"]
[Round "5"]
[Board "5"]
[White "Paiva, Marcio Silveira"]
[Black "Bil, Angelo"]
[Result "0-1"]
[ECO "D82"]
[WhiteElo "2010"]
[BlackElo "2126"]
[PlyCount "124"]
[EventDate "2012.06.17"]
[EventRounds "7"]
[EventCountry "BRA"]

1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 d5 5. Bf4 c5 6. e3 Qa5 7. Qa4+ Qxa4 8.
Nxa4 cxd4 9. Nxd4 O-O 10. Nc3 dxc4 11. Bxc4 Nbd7 12. Nde2 Nb6 13. Bb3 Bf5 14.
f3 Bd3 15. e4 Rac8 16. Be3 Nfd7 17. Rc1 e6 18. Kf2 Ba6 19. Rhd1 Nc5 20. Bxc5
Rxc5 21. f4 Rcc8 22. e5 Rfd8 23. Rxd8+ Rxd8 24. Rd1 Rxd1 25. Bxd1 Bf8 26. Kf3
Be7 27. b3 Kf8 28. Bc2 Ke8 29. Be4 Bc5 30. g4 Kd8 31. h4 h6 32. h5 gxh5 33.
gxh5 Nd7 34. Na4 Bb4 35. Nd4 Ke7 36. Nc2 Bd2 37. b4 b6 38. Nb2 f5 39. Ba8 Nb8
40. a4 Bf1 41. Kg3 Bc1 42. Nd1 Bd3 43. Nde3 Na6 44. b5 Nc5 45. Kf2 Nxa4 46. Nd4
a5 47. bxa6 Bxa6 48. Nc6+ Kf8 49. Nd4 Bxe3+ 50. Kxe3 Nc5 51. Bc6 Bf1 52. Kf2
Bc4 53. Ke3 Ke7 54. Kf3 Nb3 55. Nxb3 Bxb3 56. Ke3 Bd1 57. Kd4 Bxh5 58. Kc4 Be2+
59. Kb4 h5 60. Bg2 h4 61. Kc3 Kd7 62. Kb4 Kc7 0-1

[Event "IRT Rio de Janeiro de Inverno - Ta├ža David Borensztajn
[Site "Rio de Janeiro"]
[Date "2012.06.23"]
[Round "5"]
[Board "6"]
[White "Baeta, Marcio Netto"]
[Black "Chaves, Jorge Antonio Torres"]
[Result "1/2-1/2"]
[ECO "A22"]
[WhiteElo "2147"]
[BlackElo "2019"]
[PlyCount "101"]
[EventDate "2012.06.17"]
[EventRounds "7"]
[EventCountry "BRA"]

1. c4 Nf6 2. g3 e5 3. Bg2 Bc5 4. Nc3 a6 5. Nf3 d6 6. O-O O-O 7. a3 c6 8. b4 Ba7
9. d3 Re8 10. Bg5 h6 11. Bxf6 Qxf6 12. Ne4 Qe7 13. Rc1 f5 14. Nc3 Nd7 15. e3
Nf8 16. d4 e4 17. Nd2 Bd7 18. Nb3 b6 19. b5 axb5 20. cxb5 d5 21. a4 Qd6 22. Qd2
Rac8 23. Rfd1 Ne6 24. Qa2 Bb8 25. bxc6 Bxc6 26. Nd2 Kh7 27. Nb5 Bxb5 28. axb5
g5 29. Qa6 Rc7 30. Rxc7+ Qxc7 31. Qa2 Qd7 32. Rc1 Qxb5 33. Bf1 Qd7 34. Qa6 Rd8
35. Bb5 Qa7 36. Qxa7+ Bxa7 37. Rc6 Ng7 38. Rc7 Bb8 39. Rc6 Bd6 40. Rxb6 f4 41.
Bc6 fxe3 42. fxe3 Nf5 43. Bxd5 Nxe3 44. Bxe4+ Kh8 45. Rb7 Bf8 46. Nb3 Bg7 47.
Rb4 Rf8 48. Nd2 g4 49. Bg2 Rd8 50. Nb3 Nc2 51. Ra4 1/2-1/2

[Event "IRT Rio de Janeiro de Inverno - Ta├ža David Borensztajn
[Site "Rio de Janeiro"]
[Date "2012.06.23"]
[Round "5"]
[Board "7"]
[White "Okamura, Milton Kasuo"]
[Black "Marques, Ubiratan de Azevedo"]
[Result "1-0"]
[ECO "E91"]
[WhiteElo "2118"]
[BlackElo "1800"]
[PlyCount "117"]
[EventDate "2012.06.17"]
[EventRounds "7"]
[EventCountry "BRA"]

1. d4 Nf6 2. c4 d6 3. Nc3 g6 4. e4 Bg7 5. Nf3 O-O 6. Be2 c6 7. O-O Na6 8. Bf4
Nc7 9. Qd2 Re8 10. d5 Ng4 11. Rad1 Bd7 12. h3 Ne5 13. Nxe5 Bxe5 14. Bxe5 dxe5
15. Qh6 cxd5 16. cxd5 a6 17. h4 Nb5 18. Nxb5 Bxb5 19. Bxb5 axb5 20. a3 Qd6 21.
Qd2 Ra4 22. Qc2 Rc4 23. Qb1 Rec8 24. Rc1 Qc5 25. Rxc4 bxc4 26. Rd1 b5 27. Qc2
Kg7 28. Qc3 f6 29. Kf1 Qd6 30. Rd2 Rb8 31. g4 Kf7 32. g5 Rb6 33. Qe3 b4 34.
axb4 Qxb4 35. gxf6 exf6 36. Rc2 Ra6 37. Qe2 Ra1+ 38. Kg2 Re1 39. Rxc4 Qa5 40.
Qc2 Kg7 41. Ra4 Qb6 42. Qc6 Qxb2 43. Ra7+ Kh6 44. Qxf6 Qc1 45. Qg7+ Kh5 46.
Qxh7+ Qh6 47. f3 Rd1 48. Re7 g5 49. Qxh6+ Kxh6 50. hxg5+ Kxg5 51. Rxe5+ Kf4 52.
Rf5+ Ke3 53. Rf6 Rd4 54. d6 Rd2+ 55. Kg3 Rd1 56. e5 Kd4 57. f4 Ke4 58. Rf7 Rg1+
59. Kf2 1-0

[Event "IRT Rio de Janeiro de Inverno - Ta├ža David Borensztajn
[Site "Rio de Janeiro"]
[Date "2012.06.23"]
[Round "5"]
[Board "8"]
[White "Morais, Wagner Soares de"]
[Black "Machado, Wallace Fernandes"]
[Result "0-1"]
[ECO "E18"]
[WhiteElo "1798"]
[BlackElo "1854"]
[PlyCount "168"]
[EventDate "2012.06.17"]
[EventRounds "7"]
[EventCountry "BRA"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Nc3 d5 8. b3
Nbd7 9. Bf4 Rc8 10. Nb5 a6 11. Nc3 c5 12. cxd5 exd5 13. Rc1 Re8 14. Bh3 Ra8 15.
Re1 Nf8 16. Na4 Bc6 17. Nc3 Ne6 18. Be3 Bb7 19. Na4 Bc6 20. Nc3 Rc8 21. Ne5 Bd6
22. Nxc6 Rxc6 23. Bg2 cxd4 24. Bxd4 Nxd4 25. Qxd4 Bc5 26. Qd1 Rd6 27. Nb1 Bb4
28. Rf1 b5 29. a3 Ba5 30. b4 Bb6 31. Nd2 d4 32. Nb3 Rde6 33. Re1 Rd6 34. Qd3
Ng4 35. Red1 Ne5 36. Qc2 d3 37. exd3 Nxd3 38. Rb1 Bxf2+ 39. Kh1 Bb6 40. Rf1 Qb8
41. Nc5 Qc7 42. Qxd3 Rxd3 43. Nxd3 Qc3 44. Rfd1 Qxa3 45. Ra1 Qb3 46. Rab1 Qc3
47. Nf4 Qc2 48. Rdc1 Qf5 49. Nd5 Bd4 50. Rd1 g5 51. Re1 Rxe1+ 52. Rxe1 Qf2 53.
Rf1 Qa2 54. Ne7+ Kf8 55. Nc6 Bc3 56. Nd8 f6 57. Nc6 Qc4 58. Rc1 Qd3 59. Rf1 Kf7
60. Rf2 Qb1+ 61. Rf1 Qb2 62. Bd5+ Kg7 63. Nb8 Qxb4 64. Nc6 Qc5 65. Be4 Qc4 66.
Bg2 a5 67. Rd1 a4 68. Rd7+ Kh6 69. Nd8 Qe2 70. Nf7+ Kg6 71. h4 Qe1+ 72. Kh2
gxh4 73. gxh4 Qxh4+ 74. Bh3 Qf4+ 75. Kh1 a3 76. Nh8+ Kh6 77. Nf7+ Kh5 78. Nd6
Qc1+ 79. Kg2 Qd2+ 80. Kf3 Qd1+ 81. Kg2 Qe2+ 82. Kh1 h6 83. Bg2 Qd1+ 84. Kh2
Be5+ 0-1

[Event "IRT Rio de Janeiro de Inverno - Ta├ža David Borensztajn
[Site "Rio de Janeiro"]
[Date "2012.06.23"]
[Round "5"]
[Board "9"]
[White "Reis, Virginia Lagrange M."]
[Black "Borensztajn, David"]
[Result "1-0"]
[ECO "B41"]
[WhiteElo "1849"]
[BlackElo "1938"]
[PlyCount "83"]
[EventDate "2012.06.17"]
[EventRounds "7"]
[EventCountry "BRA"]

1. e4 c5 2. Nf3 e6 3. c4 a6 4. Be2 Qc7 5. d4 cxd4 6. Nxd4 Nf6 7. Nc3 Bb4 8. f3
b6 9. O-O Bb7 10. Be3 Bxc3 11. bxc3 d6 12. Qd2 Nbd7 13. Rab1 O-O 14. Rfd1 Rfd8
15. Kh1 Ne5 16. Nc2 Nfd7 17. Qxd6 Qxd6 18. Rxd6 Rac8 19. Rbd1 Rc6 20. Bxb6 Rxd6
21. Rxd6 Rc8 22. Bd4 g5 23. c5 Rc6 24. Nb4 Rxd6 25. cxd6 a5 26. Nc2 Kf8 27. Bb5
Nc6 28. Be3 h6 29. Nd4 Nce5 30. Nb3 Bc6 31. Be2 a4 32. Na5 Ba8 33. Bb5 a3 34.
Bxd7 Nxd7 35. Nc4 f5 36. exf5 exf5 37. Nxa3 Kf7 38. c4 Ke6 39. Nb5 Bc6 40. Nd4+
Kxd6 41. Nxf5+ Kc7 42. Nxh6 1-0

[Event "IRT Rio de Janeiro de Inverno - Ta├ža David Borensztajn
[Site "Rio de Janeiro"]
[Date "2012.06.23"]
[Round "5"]
[Board "10"]
[White "Mano, Leonardo"]
[Black "Mathow, Hermann Thomas M."]
[Result "1-0"]
[ECO "E91"]
[WhiteElo "1999"]
[BlackElo "1920"]
[PlyCount "119"]
[EventDate "2012.06.17"]
[EventRounds "7"]
[EventCountry "BRA"]

1. e4 g6 2. d4 Bg7 3. c4 d6 4. Nc3 Nf6 5. Nf3 Bg4 6. Be2 O-O 7. h3 Bd7 8. O-O
Nc6 9. Be3 Qc8 10. Kh2 Rd8 11. Qd2 Nb4 12. a3 Na6 13. Ng1 c5 14. d5 Nc7 15. f4
Bh6 16. Bf3 Rb8 17. Qf2 b5 18. e5 dxe5 19. fxe5 Bxe3 20. Qxe3 Nfe8 21. Qxc5
bxc4 22. Qxe7 Ng7 23. Be4 Nf5 24. Bxf5 Bxf5 25. d6 Re8 26. Qxc7 Qxc7 27. dxc7
Rxb2 28. Nd5 Kg7 29. Rxf5 gxf5 30. Ne7 c3 31. c8=Q Rxc8 32. Nxc8 a5 33. Rc1 Rb3
34. a4 Rb4 35. Rxc3 Rxa4 36. Nd6 Kg6 37. Nc4 Ra2 38. Ra3 Rxa3 39. Nxa3 f4 40.
Nf3 Kf5 41. Kg1 f6 42. exf6 Kxf6 43. Kf2 Ke6 44. Ke2 Kd5 45. Kd3 Kc5 46. Nd4
Kd5 47. Nc4 a4 48. Nb6+ Ke5 49. Nxa4 Kf6 50. Ke4 Kg5 51. Nf3+ Kh5 52. Kxf4 Kh6
53. g4 Kg6 54. h4 h6 55. Ke5 Kg7 56. Kf5 Kf7 57. Ne5+ Kg7 58. Ke6 Kh7 59. Kf6
h5 60. g5 1-0

[Event "IRT Rio de Janeiro de Inverno - Ta├ža David Borensztajn
[Site "Rio de Janeiro"]
[Date "2012.06.23"]
[Round "5"]
[Board "11"]
[White "Silveira, Jorge Leal"]
[Black "Silva Filho, Marlen Moura e"]
[Result "1-0"]
[ECO "A05"]
[WhiteElo "0"]
[BlackElo "1893"]
[PlyCount "71"]
[EventDate "2012.06.17"]
[EventRounds "7"]
[EventCountry "BRA"]

1. Nf3 Nf6 2. g3 c5 3. Bg2 Nc6 4. O-O g6 5. d3 Bg7 6. e4 d6 7. Nbd2 O-O 8. Ne1
Bg4 9. f3 Bd7 10. f4 Bg4 11. Ndf3 Nd4 12. c3 Nxf3+ 13. Nxf3 Qd7 14. Qe1 Bxf3
15. Bxf3 e5 16. f5 d5 17. Bg5 dxe4 18. Bxf6 Bxf6 19. Bxe4 Rad8 20. fxg6 fxg6
21. Qe3 b6 22. Rf3 Bg7 23. Raf1 Rxf3 24. Qxf3 Rf8 25. Bd5+ Kh8 26. Qxf8+ Bxf8
27. Rxf8+ Kg7 28. Rf7+ Qxf7 29. Bxf7 Kxf7 30. Kf2 Ke6 31. g4 h6 32. Ke3 b5 33.
b3 Ke7 34. Ke4 Ke6 35. a3 a6 36. c4 1-0

[Event "IRT Rio de Janeiro de Inverno - Ta├ža David Borensztajn
[Site "Rio de Janeiro"]
[Date "2012.06.24"]
[Round "6"]
[Board "1"]
[White "Rodi, Luis Ernesto"]
[Black "Rego, Vinicius V. de Almeida"]
[Result "1/2-1/2"]
[ECO "B76"]
[WhiteElo "2358"]
[BlackElo "2268"]
[PlyCount "0"]
[EventDate "2012.06.17"]
[EventRounds "7"]
[EventCountry "BRA"]

1. e4 {[%clk 1:30:56]} c5 {[%clk 1:30:54]} 2. Nf3 {[%clk 1:31:22]} d6
{[%clk 1:31:06]} 3. d4 {[%clk 1:31:39]} cxd4 {[%clk 1:31:28]} 4. Nxd4
{[%clk 1:32:05]} Nf6 {[%clk 1:31:52]} 5. Nc3 {[%clk 1:32:30]} g6 {[%clk 1:32:06]}
6. Be3 {[%clk 1:32:55]} Bg7 {[%clk 1:32:28]} 7. f3 {[%clk 1:33:21]} O-O
{[%clk 1:32:50]} 8. Qd2 {[%clk 1:33:48]} Nc6 {[%clk 1:33:15]} 9. O-O-O
{[%clk 1:34:12]} Nxd4 {[%clk 1:29:02]} 10. Bxd4 {[%clk 1:34:29]} Be6
{[%clk 1:29:28]} 11. h4 {[%clk 1:34:02]} Qa5 {[%clk 1:29:35]} 12. Kb1
{[%clk 1:33:20]} Rfc8 {[%clk 1:29:52]} 13. h5 {[%clk 1:33:15]} Rxc3
{[%clk 1:28:40]} 14. Qxc3 {[%clk 1:33:33]} Qxa2+ {[%clk 1:29:09]} 15. Kc1
{[%clk 1:33:55]} Bh6+ {[%clk 1:29:31]} 16. Be3 {[%clk 1:34:15]} Rc8
{[%clk 1:29:07]} 17. Qd3 {[%clk 1:22:41]} Bc4 {[%clk 1:21:59]} 18. Qc3
{[%clk 1:22:50]} Bxe3+ {[%clk 1:21:54]} 19. Qxe3 {[%clk 1:23:10]} Bxf1
{[%clk 1:22:14]} 20. Rhxf1 {[%clk 1:22:55]} Qa1+ {[%clk 1:22:18]} 21. Kd2
{[%clk 1:23:10]} Qxb2 {[%clk 1:22:39]} 22. Qb3 {[%clk 1:19:20]} Qe5
{[%clk 1:15:37]} 23. hxg6 {[%clk 1:17:39]} hxg6 {[%clk 1:13:57]} 24. Kc1
{[%clk 1:11:14]} Qa1+ {[%clk 1:12:14]} 25. Kd2 {[%clk 1:09:41]} Qa5+
{[%clk 1:12:21]} 26. Kc1 {[%clk 1:09:43]} b5 {[%clk 1:08:20]} 27. Qb2
{[%clk 1:04:00]} Rc4 {[%clk 1:04:38]} 28. Rd4 {[%clk 1:04:14]} Qc7
{[%clk 0:57:26]} 29. Rxc4 {[%clk 1:03:26]} Qxc4 {[%clk 0:57:19]} 30. Rd1
{[%clk 1:03:30]} Qe2 {[%clk 0:53:03]} 31. c3 {[%clk 1:02:14]} Qe3+
{[%clk 0:52:49]} 32. Qd2 {[%clk 1:02:17]} Qc5 {[%clk 0:52:51]} 33. Kb2
{[%clk 1:02:17]} a5 {[%clk 0:47:15]} 1/2-1/2

[Event "IRT Rio de Janeiro de Inverno - Ta├ža David Borensztajn
[Site "Rio de Janeiro"]
[Date "2012.06.24"]
[Round "6"]
[Board "2"]
[White "Bil, Angelo"]
[Black "Rodrigues, Nei Jorge"]
[Result "1/2-1/2"]
[ECO "C10"]
[WhiteElo "2126"]
[BlackElo "2035"]
[PlyCount "0"]
[EventDate "2012.06.17"]
[EventRounds "7"]
[EventCountry "BRA"]

1. e4 {[%clk 1:30:52]} e6 {[%clk 1:30:54]} 2. d4 {[%clk 1:31:03]} d5
{[%clk 1:31:22]} 3. Nd2 {[%clk 1:31:18]} dxe4 {[%clk 1:31:48]} 4. Nxe4
{[%clk 1:31:35]} Nd7 {[%clk 1:32:03]} 5. Nf3 {[%clk 1:31:21]} Ngf6
{[%clk 1:32:27]} 6. Ng3 {[%clk 1:26:55]} Bd6 {[%clk 1:31:47]} 7. Bd3
{[%clk 1:24:12]} c5 {[%clk 1:26:43]} 8. dxc5 {[%clk 1:23:56]} Bxc5
{[%clk 1:27:12]} 9. O-O {[%clk 1:24:03]} O-O {[%clk 1:27:38]} 10. Qe2
{[%clk 1:19:42]} Qc7 {[%clk 1:27:36]} 11. Re1 {[%clk 1:17:03]} b6
{[%clk 1:28:04]} 12. Ne4 {[%clk 1:14:47]} Be7 {[%clk 1:15:40]} 13. Bg5
{[%clk 1:08:36]} Bb7 {[%clk 1:15:49]} 14. c3 {[%clk 1:07:15]} Rfe8 15. Rad1
{[%clk 1:06:20]} h6 {[%clk 1:00:43]} 16. Bh4 {[%clk 1:04:47]} Bxe4
{[%clk 0:45:08]} 17. Bxe4 {[%clk 1:04:37]} Nxe4 {[%clk 0:45:35]} 18. Qxe4
{[%clk 1:03:43]} Bxh4 19. Nxh4 {[%clk 1:02:18]} Nf6 {[%clk 0:44:33]} 20. Qe2
{[%clk 1:01:21]} Red8 {[%clk 0:44:02]} 21. Nf3 {[%clk 1:00:01]} Rxd1
{[%clk 0:44:05]} 22. Rxd1 {[%clk 0:59:54]} Rd8 {[%clk 0:44:33]} 23. Rxd8+
{[%clk 0:58:55]} Qxd8 {[%clk 0:45:01]} 24. Qd2 {[%clk 0:59:14]} Qc7
{[%clk 0:44:51]} 25. h3 {[%clk 0:56:04]} Kf8 {[%clk 0:39:51]} 26. Qd4
{[%clk 0:53:23]} Nd7 {[%clk 0:37:01]} 27. c4 {[%clk 0:52:40]} f6 {[%clk 0:35:55]}
28. Kf1 {[%clk 0:52:46]} Ke7 {[%clk 0:35:36]} 29. Ke2 {[%clk 0:51:01]} Qc6 30. b3
{[%clk 0:50:28]} a5 {[%clk 0:34:51]} 31. Qg4 {[%clk 0:49:33]} g5 {[%clk 0:34:59]}
32. Nd4 Qd6 {[%clk 0:35:37]} 33. Qe4 {[%clk 0:48:10]} Ne5 {[%clk 0:31:57]} 34.
Nb5 {[%clk 0:37:11]} Qc5 {[%clk 0:31:21]} 35. g3 {[%clk 0:33:20]} f5 36. Qd4
{[%clk 0:33:03]} Qxd4 {[%clk 0:28:56]} 37. Nxd4 {[%clk 0:30:52]} Nf7
{[%clk 0:28:11]} 38. Ke3 {[%clk 0:30:26]} Kd6 39. f4 {[%clk 0:25:54]} h5
{[%clk 0:24:54]} 40. h4 {[%clk 0:26:17]} 1/2-1/2

[Event "IRT Rio de Janeiro de Inverno - Ta├ža David Borensztajn
[Site "Rio de Janeiro"]
[Date "2012.06.24"]
[Round "6"]
[Board "3"]
[White "Maia, Marco Aurelio Ferreira"]
[Black "Ferreira, Kleber Victor"]
[Result "1/2-1/2"]
[ECO "A96"]
[WhiteElo "2115"]
[BlackElo "2109"]
[PlyCount "0"]
[EventDate "2012.06.17"]
[EventRounds "7"]
[EventCountry "BRA"]

1. d4 {[%clk 1:30:34]} f5 {[%clk 1:30:55]} 2. g3 {[%clk 1:30:38]} Nf6
{[%clk 1:31:20]} 3. Bg2 {[%clk 1:30:51]} e6 {[%clk 1:31:32]} 4. c4
{[%clk 1:29:52]} d6 {[%clk 1:31:32]} 5. Nf3 {[%clk 1:29:47]} Be7 {[%clk 1:31:56]}
6. O-O {[%clk 1:29:31]} O-O {[%clk 1:32:22]} 7. Nc3 {[%clk 1:28:58]} Ne4
{[%clk 1:27:25]} 8. Qd3 {[%clk 0:59:17]} Nxc3 {[%clk 1:26:09]} 9. Qxc3
{[%clk 0:56:56]} a5 {[%clk 1:26:27]} 10. a3 {[%clk 0:56:25]} Bf6 {[%clk 1:22:53]}
11. Rd1 {[%clk 0:47:29]} Qe7 {[%clk 1:17:00]} 12. Qc2 e5 {[%clk 1:09:49]} 13.
dxe5 {[%clk 0:33:03]} dxe5 {[%clk 1:10:04]} 14. e4 {[%clk 0:31:28]} 1/2-1/2

[Event "IRT Rio de Janeiro de Inverno - Ta├ža David Borensztajn
[Site "Rio de Janeiro"]
[Date "2012.06.24"]
[Round "6"]
[Board "4"]
[White "De Carvalho, Jose Jorge"]
[Black "Chaves, Jorge Antonio Torres"]
[Result "1-0"]
[ECO "E12"]
[WhiteElo "2181"]
[BlackElo "2019"]
[PlyCount "0"]
[EventDate "2012.06.17"]
[EventRounds "7"]
[EventCountry "BRA"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 Bb7 5. Nc3 Ne4 6. Nxe4 Bxe4 7. Nd2 Bb7 8. e3
g6 9. h4 Bg7 10. h5 h6 11. hxg6 fxg6 12. Qg4 Qf6 13. Bd3 O-O 14. f4 g5 15. O-O
gxf4 16. Rxf4 Qg5 17. Qxg5 hxg5 18. Rg4 Bf6 19. Nf3 Bxf3 20. gxf3 Kf7 21. Bd2 Nc6
22. Kg2 Rh8 23. Rh1 Rxh1 24. Kxh1 Rh8+ 25. Kg2 a5 26. Be1 d6 27. Rg3 Ne7 28. Rh3
Rxh3 29. Kxh3 Nf5 30. Bd2 Nh6 31. b3 Ke7 32. e4 e5 33. dxe5 dxe5 34. c5 Kd8 35.
a4 Kd7 36. Bb5+ Ke6 37. Be3 Bd8 38. Bc6 Kf6 39. Bd5 Kg6 40. Kg3 Kf6 41. Kf2 Kg6
42. Kg3 Kf6 43. Bd2 Kg6 44. Bc3 Kf6 45. Bb2 Be7 46. cxb6 cxb6 47. Kf2 Bc5+ 48.
Ke2 Bd6 49. Bc1 Bc5 50. Bd2 Bd4 51. Bc4 Bc5 52. Bc1 Bd4 53. Bd5 Bc5 54. Bb2 Bd6
55. Kd3 Bc5 56. Kc4 Be3 57. Kb5 g4 58. fxg4 Nxg4 59. Ba3 Bd4 60. Bd6 Ne3 61. Bc6
Nc2 62. Bc7 Bc3 63. Bd5 Na3+ 64. Kxb6 Ke7 65. Kc6 Nc2 66. Kb5 Nd4+ 67. Ka6 Kd7
68. Bxa5 Bb2 69. b4 Kc8 70. b5 Kb8 71. Bb4 Nc2 72. Bd6+ Kc8 73. b6 Kd7 74. b7 Ba3
75. Bxa3 1-0

[Event "IRT Rio de Janeiro de Inverno - Ta├ža David Borensztajn
[Site "Rio de Janeiro"]
[Date "2012.06.24"]
[Round "6"]
[Board "5"]
[White "Frota, Alvaro"]
[Black "Baeta, Marcio Netto"]
[Result "1-0"]
[ECO "B02"]
[WhiteElo "2096"]
[BlackElo "2147"]
[PlyCount "63"]
[EventDate "2012.06.17"]
[EventRounds "7"]
[EventCountry "BRA"]

1. e4 Nf6 2. Nc3 d5 3. exd5 Nxd5 4. Bc4 c6 5. Qf3 e6 6. Nge2 Nd7 7. d4 Bd6 8.
Ne4 Be7 9. Qg3 N7f6 10. Bxd5 Nh5 11. Bxc6+ bxc6 12. Qf3 Nf6 13. Nxf6+ Bxf6 14.
Qxc6+ Bd7 15. Qe4 O-O 16. Bf4 Qb6 17. O-O Bc6 18. Qe3 Qxb2 19. c4 Rfd8 20. Be5
Bxe5 21. Qxe5 Rab8 22. Rfd1 Rb7 23. Nf4 Rdb8 24. Nh5 f6 25. Nxf6+ gxf6 26.
Qxe6+ Kg7 27. Qxc6 Re7 28. Qf3 Rbe8 29. h3 Re4 30. Rab1 Qxa2 31. Rb7+ R8e7 32.
Qxe4 1-0

[Event "IRT Rio de Janeiro de Inverno - Ta├ža David Borensztajn
[Site "Rio de Janeiro"]
[Date "2012.06.24"]
[Round "6"]
[Board "6"]
[White "Machado, Wallace Fernandes"]
[Black "Okamura, Milton Kasuo"]
[Result "0-1"]
[ECO "A30"]
[WhiteElo "1854"]
[BlackElo "2118"]
[PlyCount "100"]
[EventDate "2012.06.17"]
[EventRounds "7"]
[EventCountry "BRA"]

1. c4 Nf6 2. Nc3 c5 3. g3 e6 4. Bg2 a6 5. Nf3 Be7 6. O-O Qc7 7. b3 d6 8. Bb2 b6
9. e3 Bb7 10. Re1 Nbd7 11. d4 O-O 12. Qd2 Rfe8 13. Rad1 Rad8 14. Qc2 Qb8 15. d5
e5 16. Rf1 b5 17. Nd2 Bc8 18. f4 Bf8 19. Qd3 bxc4 20. Qxc4 Ng4 21. Rde1 exf4
22. Qxf4 Nde5 23. Be4 Qc7 24. Bb1 Nf6 25. Kg2 Qd7 26. Kg1 Qh3 27. Nf3 Nh5 28.
Qe4 Nf6 29. Qc2 Neg4 30. Ng5 Qh5 31. Nd1 Qxg5 32. Bxf6 Nxf6 33. Rxf6 g6 34. Rf2
Re7 35. e4 Bg7 36. Kg2 Qh5 37. Kh1 Rde8 38. Nb2 Bd4 39. Rff1 Bh3 40. Rf4 Qxd5
41. Rh4 Qe6 42. Qd2 Bf6 43. Rh6 Bg4 44. Nc4 d5 45. Nb2 Bf3+ 46. Kg1 Bd4+ 47.
Re3 Bxe4 48. Rh4 Bxb1 49. Rxd4 Qxe3+ 50. Qxe3 Rxe3 0-1

[Event "IRT Rio de Janeiro de Inverno - Ta├ža David Borensztajn
[Site "Rio de Janeiro"]
[Date "2012.06.24"]
[Round "6"]
[Board "7"]
[White "Paiva, Marcio Silveira"]
[Black "Reis, Virginia Lagrange M."]
[Result "0-1"]
[ECO "A35"]
[WhiteElo "2010"]
[BlackElo "1849"]
[PlyCount "57"]
[EventDate "2012.06.17"]
[EventRounds "7"]
[EventCountry "BRA"]

1. c4 c5 2. Nc3 Nc6 3. e3 g6 4. d4 cxd4 5. exd4 d6 6. Be3 Bg7 7. Nge2 Nh6 8.
Qd2 Nf5 9. O-O-O Nxe3 10. fxe3 O-O 11. g3 a6 12. Bg2 Rb8 13. Kb1 Bg4 14. h3 Bd7
15. Rc1 Na7 16. Rhd1 Bc6 17. e4 b5 18. cxb5 Nxb5 19. Nxb5 Bxb5 20. Nc3 e6 21.
Nxb5 Rxb5 22. Bf1 Rb6 23. Rc3 Qa8 24. Bg2 Rfb8 25. Rc2 Qb7 26. Qc3 a5 27. e5 d5
28. Rdd2 Bf8 29. Rf2 0-1

[Event "IRT Rio de Janeiro de Inverno - Ta├ža David Borensztajn
[Site "Rio de Janeiro"]
[Date "2012.06.24"]
[Round "6"]
[Board "8"]
[White "Diaz, Marcos"]
[Black "Mano, Leonardo"]
[Result "1/2-1/2"]
[ECO "E70"]
[WhiteElo "1750"]
[BlackElo "1999"]
[PlyCount "81"]
[EventDate "2012.06.17"]
[EventRounds "7"]
[EventCountry "BRA"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Bg5 h6 6. Bh4 g5 7. Bg3 O-O 8. Bd3
Nbd7 9. Nge2 e5 10. d5 a5 11. O-O Nc5 12. Bc2 Nh5 13. Kh1 f5 14. exf5 Bxf5 15.
f3 Nf4 16. Ne4 b6 17. N2c3 Qd7 18. Nxc5 bxc5 19. Ne4 Rf7 20. a3 Raf8 21. Bxf4
exf4 22. Rb1 Re7 23. Re1 Kh8 24. b4 cxb4 25. axb4 axb4 26. Qd3 Bc3 27. Re2 Qe8
28. Qd1 Bxe4 29. Rxe4 Rxe4 30. Bxe4 Qe5 31. Qa4 Kg7 32. Qd7+ Rf7 33. Qg4 Qe7
34. Qh5 Qf6 35. Qg4 Qd4 36. Qe6 Qf6 37. Qg4 Re7 38. h4 Re5 39. h5 Qe7 40. Qc8
Kf6 41. Qh8+ 1/2-1/2

[Event "IRT Rio de Janeiro de Inverno - Ta├ža David Borensztajn
[Site "Rio de Janeiro"]
[Date "2012.06.24"]
[Round "6"]
[Board "9"]
[White "Borensztajn, David"]
[Black "Silveira, Jorge Leal"]
[Result "1-0"]
[ECO "A26"]
[WhiteElo "1938"]
[BlackElo "0"]
[PlyCount "69"]
[EventDate "2012.06.17"]
[EventRounds "7"]
[EventCountry "BRA"]

1. c4 d6 2. g3 Nf6 3. Bg2 g6 4. Nc3 Bg7 5. d3 e5 6. e4 O-O 7. Nge2 Nc6 8. O-O
Ne8 9. Nd5 Ne7 10. Bg5 f6 11. Be3 c6 12. Nxe7+ Qxe7 13. Rc1 b6 14. Qd2 h5 15.
h3 Rb8 16. f4 Bb7 17. b4 Nc7 18. Qc2 c5 19. a3 f5 20. Nc3 a6 21. bxc5 bxc5 22.
Rb1 Bc6 23. Nd5 Bxd5 24. cxd5 Nb5 25. Qd1 exf4 26. Bd2 Bd4+ 27. Kh1 Nxa3 28.
Rxb8 Rxb8 29. Qa4 Rb2 30. Bxf4 Nc2 31. Qxa6 Be5 32. Bh6 Nb4 33. Qc8+ Kh7 34.
exf5 Rxg2 35. fxg6+ 1-0

[Event "IRT Rio de Janeiro de Inverno - Ta├ža David Borensztajn
[Site "Rio de Janeiro"]
[Date "2012.06.24"]
[Round "6"]
[Board "10"]
[White "Morais, Wagner Soares de"]
[Black "Marques, Ubiratan de Azevedo"]
[Result "0-1"]
[ECO "E81"]
[WhiteElo "1798"]
[BlackElo "1800"]
[PlyCount "84"]
[EventDate "2012.06.17"]
[EventRounds "7"]
[EventCountry "BRA"]

1. c4 Nf6 2. d4 d6 3. Nc3 g6 4. e4 Bg7 5. f3 O-O 6. Be3 c6 7. Qd2 Re8 8. Nge2
Na6 9. Nc1 Nc7 10. Nd3 a6 11. Be2 Bd7 12. O-O b5 13. cxb5 axb5 14. a4 bxa4 15.
Nxa4 c5 16. Nb6 Rxa1 17. Rxa1 cxd4 18. Bf2 Ne6 19. Nxd7 Nxd7 20. b4 Qb6 21. Bd1
Ne5 22. Rb1 Nxd3 23. Qxd3 Nc7 24. Ba4 Rb8 25. Bh4 e5 26. Bb3 Qc6 27. Be1 Bh6
28. Bd2 Bxd2 29. Qxd2 Kg7 30. h4 Nb5 31. Qg5 Qc3 32. Qe7 Rf8 33. Bd5 Qe3+ 34.
Kh2 Nc3 35. Rb3 Nxd5 36. Qxd6 Qf4+ 37. g3 Qd2+ 38. Kh3 Ne3 39. Rxe3 dxe3 40.
Qxe5+ Kg8 41. Qg5 Qd7+ 42. Qg4 e2 0-1

[Event "IRT Rio de Janeiro de Inverno - Ta├ža David Borensztajn
[Site "Rio de Janeiro"]
[Date "2012.06.24"]
[Round "7"]
[Board "1"]
[White "Ferreira, Kleber Victor"]
[Black "Rodi, Luis Ernesto"]
[Result "1/2-1/2"]
[ECO "C30"]
[WhiteElo "2109"]
[BlackElo "2358"]
[PlyCount "0"]
[EventDate "2012.06.17"]
[EventRounds "7"]
[EventCountry "BRA"]

1. f4 {[%clk 1:30:51]} e5 {[%clk 1:30:52]} 2. e4 {[%clk 1:30:25]} Qh4+
{[%clk 1:31:13]} 3. g3 {[%clk 1:30:32]} Qe7 {[%clk 1:31:37]} 4. Nc3
{[%clk 1:27:32]} exf4 {[%clk 1:31:19]} 5. d4 {[%clk 1:25:21]} Nf6
{[%clk 1:29:13]} 6. Bxf4 {[%clk 1:20:03]} d5 {[%clk 1:24:52]} 7. e5
{[%clk 1:11:40]} c6 {[%clk 1:24:34]} 8. Qe2 {[%clk 1:09:33]} Nfd7
{[%clk 1:22:04]} 9. Nf3 {[%clk 1:09:22]} Nb6 1/2-1/2

[Event "IRT Rio de Janeiro de Inverno - Ta├ža David Borensztajn
[Site "Rio de Janeiro"]
[Date "2012.06.24"]
[Round "7"]
[Board "2"]
[White "Rego, Vinicius V. de Almeida"]
[Black "Bil, Angelo"]
[Result "1-0"]
[ECO "A16"]
[WhiteElo "2268"]
[BlackElo "2126"]
[PlyCount "133"]
[EventDate "2012.06.17"]
[EventRounds "7"]
[EventCountry "BRA"]

1. c4 Nf6 2. Nc3 d5 3. cxd5 Nxd5 4. Nf3 g6 5. Qa4+ c6 6. Qd4 Nf6 7. Qxd8+ Kxd8
8. d4 Bf5 9. Ng5 Ke8 10. e4 Bc8 11. Bc4 e6 12. e5 Nd5 13. Nge4 Nd7 14. Bg5 h6
15. Bd2 Be7 16. O-O-O N7b6 17. Bb3 Kd7 18. h4 Kc7 19. Rh3 Bd7 20. Kb1 Rac8 21.
f4 Kb8 22. h5 gxh5 23. Rxh5 Rcg8 24. Rh2 f5 25. exf6 Nxf6 26. Nxf6 Bxf6 27. f5
Nd5 28. Ne4 Bd8 29. Nc5 Kc8 30. fxe6 Be8 31. Bxd5 cxd5 32. Rc1 Bc7 33. Rxh6
Rxh6 34. Bxh6 Rxg2 35. a3 Bc6 36. Rf1 Bd6 37. Bf8 Bxc5 38. Bxc5 Re2 39. Rf8+
Kc7 40. Rf7+ Kc8 41. Rf6 b6 42. Bd6 Be8 43. Rh6 Kd8 44. Ka2 Re4 45. Be5 Ke7 46.
Rh7+ Kxe6 47. Rxa7 Bb5 48. Rb7 Bc4+ 49. b3 Re2+ 50. Ka1 Bd3 51. Rxb6+ Kf5 52.
a4 Re1+ 53. Kb2 Rb1+ 54. Kc3 Ke4 55. a5 Rc1+ 56. Kb4 Ra1 57. Rh6 Ra2 58. Rh4+
Kf5 59. Bc7 Rc2 60. Bb6 Ke6 61. Bc5 Kd7 62. Rh6 Kc7 63. a6 Ra2 64. a7 Bf5 65.
Rd6 Be4 66. Rf6 Kb7 67. Rf8 1-0

[Event "IRT Rio de Janeiro de Inverno - Ta├ža David Borensztajn
[Site "Rio de Janeiro"]
[Date "2012.06.24"]
[Round "7"]
[Board "3"]
[White "Rodrigues, Nei Jorge"]
[Black "Maia, Marco Aurelio Ferreira"]
[Result "1/2-1/2"]
[ECO "A45"]
[WhiteElo "2035"]
[BlackElo "2115"]
[PlyCount "0"]
[EventDate "2012.06.17"]
[EventRounds "7"]
[EventCountry "BRA"]

1. d4 {[%clk 1:30:52]} Nf6 {[%clk 1:28:55]} 2. e3 {[%clk 1:31:05]} g6
{[%clk 1:26:23]} 3. Bd3 {[%clk 1:31:17]} Bg7 {[%clk 1:24:29]} 4. Nd2
{[%clk 1:31:12]} d6 {[%clk 1:23:59]} 5. c3 {[%clk 1:31:17]} O-O {[%clk 1:23:49]}
6. Ngf3 {[%clk 1:28:55]} Nbd7 {[%clk 1:21:52]} 7. O-O {[%clk 1:29:13]} c6
{[%clk 1:21:03]} 8. b3 {[%clk 1:29:22]} Re8 {[%clk 1:20:22]} 9. Bb2
{[%clk 1:26:49]} e5 {[%clk 1:11:15]} 10. Qc2 {[%clk 1:26:57]} Qc7
{[%clk 1:07:41]} 11. Rac1 {[%clk 1:20:59]} d5 {[%clk 0:57:56]} 12. Nxe5
{[%clk 1:18:55]} Nxe5 {[%clk 0:58:14]} 13. dxe5 {[%clk 1:19:13]} Qxe5
{[%clk 0:53:51]} 14. c4 {[%clk 1:16:57]} Qh5 {[%clk 0:52:18]} 15. cxd5
{[%clk 1:10:57]} Nxd5 {[%clk 0:46:45]} 16. Bc4 {[%clk 1:06:29]} Nb4
{[%clk 0:35:17]} 17. Qb1 {[%clk 1:06:40]} Bf5 {[%clk 0:27:58]} 18. e4
{[%clk 1:06:47]} Bxb2 {[%clk 0:27:23]} 19. Qxb2 {[%clk 1:07:15]} Bxe4
{[%clk 0:26:53]} 20. a3 {[%clk 0:56:11]} Nd5 {[%clk 0:21:33]} 21. f3
{[%clk 0:48:51]} Bf5 1/2-1/2

[Event "IRT Rio de Janeiro de Inverno - Ta├ža David Borensztajn
[Site "Rio de Janeiro"]
[Date "2012.06.24"]
[Round "7"]
[Board "4"]
[White "Marques, Ubiratan de Azevedo"]
[Black "De Carvalho, Jose Jorge"]
[Result "0-1"]
[ECO "B30"]
[WhiteElo "1800"]
[BlackElo "2181"]
[PlyCount "0"]
[EventDate "2012.06.17"]
[EventRounds "7"]
[EventCountry "BRA"]

1. e4 c5 2. Nf3 Nc6 3. c3 Nf6 4. e5 Nd5 5. Qb3 e6 6. d4 cxd4 7. cxd4 Qc7 8. Qd1
d6 9. Nc3 Nxc3 10. bxc3 dxe5 11. Bb5 exd4 12. Qxd4 Bd7 13. Qg4 Ne5 14. Bxd7+ Nxd7
15. Bd2 h5 16. Qa4 h4 17. O-O h3 18. Bf4 Qc6 19. Qxc6 bxc6 20. Rab1 hxg2 21. Rfd1
Nc5 22. Rd2 Rh5 23. Rdb2 Rf5 24. Rb8+ Rxb8 25. Rxb8+ Ke7 26. Be3 Nd7 27. Rb7 Rxf3
28. Kxg2 Rf5 29. Rxa7 g6 30. a4 Bg7 31. c4 Bc3 32. c5 Kd8 33. a5 Nxc5 34. a6 Kc8
35. Ra8+ Kc7 36. h3 Ba5 37. a7 Kb7 38. Rc8 Kxa7 39. Rxc6 Bb6 40. Rc8 Kb7 41. Re8
Nd3 42. Re7+ Kc6 43. Kg3 Nxf2 0-1

[Event "IRT Rio de Janeiro de Inverno - Ta├ža David Borensztajn
[Site "Rio de Janeiro"]
[Date "2012.06.24"]
[Round "7"]
[Board "5"]
[White "Okamura, Milton Kasuo"]
[Black "Baeta, Marcio Netto"]
[Result "1-0"]
[ECO "D45"]
[WhiteElo "2118"]
[BlackElo "2147"]
[PlyCount "49"]
[EventDate "2012.06.17"]
[EventRounds "7"]
[EventCountry "BRA"]

1. d4 d5 2. c4 e6 3. Nf3 c6 4. e3 Nf6 5. Nc3 Be7 6. Bd3 O-O 7. O-O dxc4 8. Bxc4
b5 9. Bd3 Nbd7 10. e4 b4 11. Na4 c5 12. e5 Nd5 13. Re1 Qc7 14. Bd2 cxd4 15. Rc1
Qb8 16. Qe2 f6 17. exf6 N7xf6 18. Nxd4 Nf4 19. Bxf4 Qxf4 20. Nxe6 Bxe6 21.
Qxe6+ Rf7 22. Bc4 Ng4 23. Qxf7+ Qxf7 24. Bxf7+ Kxf7 25. Rc7 1-0

[Event "IRT Rio de Janeiro de Inverno - Ta├ža David Borensztajn
[Site "Rio de Janeiro"]
[Date "2012.06.24"]
[Round "7"]
[Board "6"]
[White "Reis, Virginia Lagrange M."]
[Black "Diaz, Marcos"]
[Result "1-0"]
[ECO "C64"]
[WhiteElo "1849"]
[BlackElo "1750"]
[PlyCount "59"]
[EventDate "2012.06.17"]
[EventRounds "7"]
[EventCountry "BRA"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Bc5 4. Nc3 Nge7 5. O-O O-O 6. Nxe5 Ng6 7. Nf3 Nd4 8.
Nxd4 Bxd4 9. Ne2 Bb6 10. d4 c6 11. Bc4 d5 12. exd5 cxd5 13. Bd3 Bg4 14. c3 Re8
15. Qc2 Bc7 16. Be3 a6 17. Ng3 b5 18. Rae1 Rf8 19. f4 Qh4 20. Qf2 Rae8 21. h3
Bd7 22. Ne2 Qd8 23. f5 Rxe3 24. Qxe3 Ne7 25. f6 gxf6 26. Rxf6 Ng6 27. Ref1 Be8
28. Qh6 Qe7 29. Kh1 Kh8 30. Bxg6 1-0

[Event "IRT Rio de Janeiro de Inverno - Ta├ža David Borensztajn
[Site "Rio de Janeiro"]
[Date "2012.06.24"]
[Round "7"]
[Board "7"]
[White "Chaves, Jorge Antonio Torres"]
[Black "Borensztajn, David"]
[Result "1-0"]
[ECO "A80"]
[WhiteElo "2019"]
[BlackElo "1938"]
[PlyCount "51"]
[EventDate "2012.06.17"]
[EventRounds "7"]
[EventCountry "BRA"]

1. d4 f5 2. h3 d5 3. Nf3 Nf6 4. Nc3 e6 5. g4 fxg4 6. hxg4 Bb4 7. Bg5 Qd6 8.
Bxf6 gxf6 9. g5 Bxc3+ 10. bxc3 Qf8 11. Qd3 f5 12. Ne5 Qg7 13. f4 c6 14. Rh6 Nd7
15. Rxe6+ Kd8 16. Rh6 Nf8 17. Bh3 Ng6 18. e3 Ne7 19. c4 Ng8 20. Rd6+ Kc7 21.
Qa3 Qe7 22. c5 Qe8 23. Rxc6+ bxc6 24. Qa5+ Kb8 25. Rb1+ Bb7 26. Qa6 1-0

[Event "IRT Rio de Janeiro de Inverno - Ta├ža David Borensztajn
[Site "Rio de Janeiro"]
[Date "2012.06.24"]
[Round "7"]
[Board "8"]
[White "Mano, Leonardo"]
[Black "Machado, Wallace Fernandes"]
[Result "1-0"]
[ECO "C90"]
[WhiteElo "1999"]
[BlackElo "1854"]
[PlyCount "77"]
[EventDate "2012.06.17"]
[EventRounds "7"]
[EventCountry "BRA"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3
d6 9. a4 b4 10. Bd5 Nxd5 11. exd5 Nb8 12. cxb4 Bg4 13. h3 Bh5 14. Nc3 f5 15. d3
Nd7 16. Qe2 Rb8 17. b5 axb5 18. Nxb5 Nc5 19. Qc2 Bxf3 20. gxf3 Qd7 21. f4 e4
22. dxe4 fxe4 23. Ra3 Rf6 24. b4 Na6 25. Qxe4 Bf8 26. Kh2 Qf7 27. Bd2 Kh8 28.
Rd3 Kg8 29. Qc4 Kh8 30. Re6 Re8 31. Rxe8 Qxe8 32. Re3 Qh5 33. Qe2 Qxd5 34. Re8
Kg8 35. Nc3 Qb7 36. Ne4 Rg6 37. f5 Rf6 38. Nxf6+ gxf6 39. Bh6 1-0

[Event "IRT Rio de Janeiro de Inverno - Ta├ža David Borensztajn
[Site "Rio de Janeiro"]
[Date "2012.06.24"]
[Round "7"]
[Board "9"]
[White "Mathow, Hermann Thomas M."]
[Black "Paiva, Marcio Silveira"]
[Result "0-1"]
[ECO "B11"]
[WhiteElo "1920"]
[BlackElo "2010"]
[PlyCount "100"]
[EventDate "2012.06.17"]
[EventRounds "7"]
[EventCountry "BRA"]

1. e4 c6 2. Nc3 d5 3. Qf3 e6 4. exd5 exd5 5. d4 Nf6 6. Bg5 Nbd7 7. O-O-O Be7 8.
Bd3 O-O 9. Nh3 h6 10. Be3 Nb6 11. Qg3 Bd6 12. f4 Qc7 13. Qf2 Re8 14. Rhe1 Ng4
15. Qg1 Rxe3 16. Rxe3 Nxe3 17. Qxe3 Bxh3 18. Qxh3 Bxf4+ 19. Kb1 Bxh2 20. Rh1
Re8 21. b3 Bf4 22. Rf1 Bg5 23. Nd1 Nd7 24. Bh7+ Kxh7 25. Rxf7 Re7 26. Qf5+ Kg8
27. Rxe7 Bxe7 28. Qe6+ Kf8 29. Ne3 Nf6 30. Nf5 Qd7 31. Qxd7 Nxd7 32. Kc1 Kf7
33. Kd2 Kf6 34. g4 Bf8 35. Ke3 g6 36. Ng3 Bd6 37. Ne2 Kg5 38. Kf3 Nf6 39. Ng1
Nxg4 40. Nh3+ Kf5 41. c4 g5 42. Ng1 Nf6 43. Ne2 g4+ 44. Kg2 Ne4 45. Nc1 h5 46.
Nd3 h4 47. c5 h3+ 48. Kf1 Bf4 49. b4 Be3 50. a4 Ng3+ 0-1

[Event "IRT Rio de Janeiro de Inverno - Ta├ža David Borensztajn
[Site "Rio de Janeiro"]
[Date "2012.06.24"]
[Round "7"]
[Board "10"]
[White "Silveira, Jorge Leal"]
[Black "Morais, Wagner Soares de"]
[Result "0-1"]
[ECO "B50"]
[WhiteElo "0"]
[BlackElo "1798"]
[PlyCount "44"]
[EventDate "2012.06.17"]
[EventRounds "7"]
[EventCountry "BRA"]

1. Nf3 c5 2. g3 Nc6 3. Bg2 g6 4. O-O Bg7 5. e4 d6 6. c3 Nf6 7. Re1 O-O 8. d4 d5
9. exd5 Nxd5 10. c4 Nb6 11. d5 Nd4 12. Nxd4 Bxd4 13. Na3 Rb8 14. Be3 Bxb2 15.
Qb3 Bxa1 16. Rxa1 Nd7 17. Qc3 f6 18. Nb5 a6 19. Na7 Qb6 20. Nxc8 Rfxc8 21. Re1
Qb4 22. Qc2 Qxe1+ 0-1

 

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