[Event "ARG U20-ch"]
[Site "St Rosa"]
[Date "1983.??.??"]
[Round "10"]
[White "Bracchi, Sergio"]
[Black "Villarreal, Pablo"]
[Result "1-0"]
[ECO "C47"]
[WhiteElo "2215"]
[PlyCount "43"]
[EventDate "1983.??.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "ARG"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nf6 5. Nc3 Bb4 6. Nxc6 bxc6 7. Bd3 h6 8. 0-0 d6 9. Ne2 0-0 10. a3 Ba5 11. b4 Bb6 12. c4 a5 13. Bb2 Re8 14. Rc1 axb4 15. axb4 Nxe4 16. Bxe4 Rxe4 17. Ng3 Bg4 18. Qc2 Re8 19. h3 Bd7 20. c5 Ba7 21. Ra1 Qg5 22. Ra3 1-0

[Event "ARG U20-ch"]
[Site "St Rosa"]
[Date "1983.??.??"]
[Round "6"]
[White "Hefty Hilardo, Jorge Walter"]
[Black "Villarreal, Pablo"]
[Result "0-1"]
[ECO "C50"]
[PlyCount "85"]
[EventDate "1983.??.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "ARG"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Be7 4. d4 exd4 5. c3 Na5 6. Bb3 Nxb3 7. Qxb3 Nf6 8. e5 Ne4 9. cxd4 d5 10. 0-0 0-0 11. Nbd2 c5 12. dxc5 Nxc5 13. Qe3 b6 14. Nd4 Ne6 15. N2b3 Ba6 16. Rd1 Rc8 17. Bd2 Rc4 18. Bc3 Bg5 19. Qf3 Qd7 20. g3 Bb7 21. Nf5 d4 22. Qe2 Qc6 23. f3 dxc3 24. Nd6 c2 25. Nxc4 cxd1Q+ 26. Rxd1 Qxf3 27. Qxf3 Bxf3 28. Rd7 Rd8 29. Rxa7 Kf8 30. Nd6 Be7 31. Nd2 Bxd6 32. exd6 Bd5 33. Nf1 Rxd6 34. Ne3 Nc5 35. Rc7 Be6 36. b4 Nd3 37. b5 g6 38. a4 Nb2 39. Ra7 Bb3 40. a5 bxa5 41. Rxa5 Nc4 42. Ra6 Rxa6 43. bxa6 0-1

[Event "ARG U20-ch"]
[Site "St Rosa"]
[Date "1983.??.??"]
[Round "2"]
[White "Needleman, Alejandro"]
[Black "Villarreal, Pablo"]
[Result "1-0"]
[ECO "A22"]
[PlyCount "59"]
[EventDate "1983.??.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "ARG"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 Nf6 3. g3 Bc5 4. Bg2 0-0 5. d3 c6 6. Nf3 Re8 7. Ne4 Nxe4 8. dxe4 b5 9. Nd2 Qb6 10. 0-0 Na6 11. a3 bxc4 12. Nxc4 Qb5 13. Qc2 d5 14. exd5 cxd5 15. b4 Bd4 16. Rb1 Bf5 17. Qxf5 Qxc4 18. e4 Qd3 19. Be3 g6 20. Qf3 dxe4 21. Qxe4 Qxe4 22. Bxe4 Rad8 23. Bg5 Rd6 24. g4 Rc8 25. Rbc1 Rxc1 26. Rxc1 Bb2 27. Rc8+ Kg7 28. Be7 Rd7 29. Bf8+ Kf6 30. Rc6+ 1-0

[Event "ARG U20-ch"]
[Site "St Rosa"]
[Date "1983.??.??"]
[Round "12"]
[White "Oggier, Daniel"]
[Black "Villarreal, Pablo"]
[Result "1/2-1/2"]
[ECO "D14"]
[PlyCount "23"]
[EventDate "1983.??.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "ARG"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. cxd5 cxd5 4. Nc3 Nc6 5. Bf4 Bf5 6. e3 e6 7. Bd3 Bg6 8. a3 Nf6 9. Nf3 Bd6 10. Bxd6 Qxd6 11. 0-0 0-0 12. h3 1/2-1/2

[Event "ARG U20-ch"]
[Site "St Rosa"]
[Date "1983.??.??"]
[Round "4"]
[White "Sanchez, Marcelo"]
[Black "Villarreal, Pablo"]
[Result "1-0"]
[ECO "C36"]
[PlyCount "53"]
[EventDate "1983.??.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "ARG"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. e4 e5 2. f4 exf4 3. Nf3 d5 4. exd5 Nf6 5. Bb5+ Bd7 6. Bxd7+ Qxd7 7. 0-0 Nxd5 8. d4 Nc6 9. c4 Ne3 10. Bxe3 fxe3 11. d5 Bc5 12. Kh1 Qe7 13. Qa4 0-0-0 14. dxc6 g5 15. cxb7+ Kb8 16. Nc3 g4 17. Ng1 h5 18. b4 Bxb4 19. Nd5 Rxd5 20. cxd5 h4 21. Rf4 h3 22. g3 Qe5 23. Qxb4 Re8 24. Qd4 Qd6 25. Re4 Rxe4 26. Qxe4 Qf6 27. Rb1 1-0

[Event "ARG U20-ch"]
[Site "St Rosa"]
[Date "1983.??.??"]
[Round "8"]
[White "Sansoni, Claudio"]
[Black "Villarreal, Pablo"]
[Result "0-1"]
[ECO "C42"]
[PlyCount "53"]
[EventDate "1983.??.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "ARG"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Bc4 Nxe4 4. Qe2 d5 5. d3 Nf6 6. Qxe5+ Be6 7. Bb3 Bd6 8. Qe2 0-0 9. 0-0 Nbd7 10. h3 Re8 11. Be3 c5 12. c3 Qc7 13. Nbd2 Ne5 14. Nxe5 Bxe5 15. Nf3 d4 16. cxd4 cxd4 17. Bxe6 Rxe6 18. Rfc1 Qd6 19. Ng5 Ree8 20. Ne4 Nxe4 21. dxe4 dxe3 22. Qxe3 Bf4 23. Qb3 Bxc1 24. Rxc1 Rac8 25. Rxc8 Rxc8 26. Qe3 Qc5 27. Qg5 0-1

[Event "ARG U20-ch"]
[Site "St Rosa"]
[Date "1983.??.??"]
[Round "5"]
[White "Villarreal, Pablo"]
[Black "Aracri, Marcelo"]
[Result "1/2-1/2"]
[ECO "B13"]
[PlyCount "58"]
[EventDate "1983.??.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "ARG"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 c5 3. Nc3 Nc6 4. e3 d5 5. cxd5 Nxd5 6. d4 cxd4 7. exd4 Bg4 8. Be2 e6 9. 0-0 Be7 10. Qb3 Nb6 11. Be3 0-0 12. Rad1 Nb4 13. h3 Bh5 14. d5 N4xd5 15. Bxb6 Qxb6 16. Nxd5 exd5 17. Rxd5 Qxb3 18. axb3 Bg6 19. Rd7 Bf6 20. Rxb7 Rfb8 21. Rxb8+ Rxb8 22. Bc4 Bxb2 23. Rd1 h6 24. Rd7 a5 25. Nh4 Kh7 26. f4 Bf6 27. Nxg6 fxg6 28. Kf2 Rd8 29. Rb7 Rd4 1/2-1/2

[Event "ARG U20-ch"]
[Site "St Rosa"]
[Date "1983.??.??"]
[Round "1"]
[White "Villarreal, Pablo"]
[Black "Costianosky, Ricardo"]
[Result "1/2-1/2"]
[ECO "C49"]
[PlyCount "22"]
[EventDate "1983.??.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "ARG"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nc3 Nc6 4. Bb5 Bb4 5. 0-0 0-0 6. a3 Ba5 7. b4 Bb6 8. d3 d6 9. h3 Ne7 10. d4 Ng6 11. dxe5 Nxe5 1/2-1/2

[Event "ARG U20-ch"]
[Site "St Rosa"]
[Date "1983.??.??"]
[Round "9"]
[White "Villarreal, Pablo"]
[Black "Dorin, Jaime"]
[Result "0-1"]
[ECO "A84"]
[PlyCount "94"]
[EventDate "1983.??.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "ARG"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. Nf3 f5 2. d4 Nf6 3. c4 e6 4. Nc3 d5 5. Bf4 c6 6. e3 Be7 7. Be2 0-0 8. 0-0 Ne4 9. Nd2 g5 10. Be5 Nd7 11. Ndxe4 dxe4 12. Na4 Nxe5 13. dxe5 Qa5 14. Qc2 Qxe5 15. c5 Bd7 16. Rad1 Rfd8 17. b4 Be8 18. Nb2 b5 19. cxb6 axb6 20. Nc4 Qc7 21. a3 Rd5 22. f3 exf3 23. Bxf3 Rxd1 24. Rxd1 g4 25. Be2 b5 26. Na5 Rc8 27. Rc1 Qe5 28. Qc3 Qxc3 29. Rxc3 c5 30. Nb3 c4 31. Nd4 Bf6 32. a4 Bxd4 33. exd4 Kf8 34. Kf2 bxa4 35. Rxc4 Rb8 36. Bd1 Ke7 37. Ke3 Kd6 38. Kd2 Bb5 39. Rc5 Bc6 40. Kc3 Bxg2 41. Bxa4 Bd5 42. Ra5 f4 43. Ra7 Bb7 44. Kd3 g3 45. hxg3 fxg3 46. Ke3 g2 47. Kf2 Rf8+ 0-1

[Event "ARG U20-ch"]
[Site "St Rosa"]
[Date "1983.??.??"]
[Round "7"]
[White "Villarreal, Pablo"]
[Black "Lloyd, Osvaldo R"]
[Result "1-0"]
[ECO "D02"]
[PlyCount "43"]
[EventDate "1983.??.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "ARG"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 e6 3. Bg2 d5 4. d4 c5 5. c3 Nc6 6. 0-0 b6 7. Qa4 Bb7 8. Bf4 Nd7 9. Nbd2 Be7 10. e4 0-0 11. Rfe1 g5 12. exd5 exd5 13. Be3 f5 14. Nxg5 Bxg5 15. Bxd5+ Rf7 16. Bxc6 Bxc6 17. Qxc6 f4 18. gxf4 Bxf4 19. Nf1 Rg7+ 20. Ng3 Bxe3 21. Rxe3 Qg5 22. Qxa8+ 1-0

[Event "ARG U20-ch"]
[Site "St Rosa"]
[Date "1983.??.??"]
[Round "11"]
[White "Villarreal, Pablo"]
[Black "Roldan, Adrian"]
[Result "1/2-1/2"]
[ECO "C01"]
[PlyCount "39"]
[EventDate "1983.??.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "ARG"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. exd5 exd5 4. Bd3 Bd6 5. Nf3 Nf6 6. Bg5 Bg4 7. Qe2+ Be6 8. Bf5 Qe7 9. Bxe6 Qxe6 10. Qxe6+ fxe6 11. Nbd2 Nbd7 12. 0-0-0 0-0-0 13. Rde1 Rde8 14. Re2 e5 15. dxe5 Nxe5 16. Nxe5 Rxe5 17. Rxe5 Bxe5 18. Nf3 Bd6 19. Bxf6 gxf6 20. Re1 1/2-1/2

