[Event "Villa Ballester op 53th"]
[Site "Villa Ballester"]
[Date "2003.01.15"]
[Round "6"]
[White "O'Patril, Guillermo"]
[Black "Koch, Juan Enrique"]
[Result "1/2-1/2"]
[ECO "B37"]
[BlackElo "2040"]
[PlyCount "112"]
[EventDate "2003.01.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 092 Extra"]
[Source "ChessBase"]
[SourceDate "2003.03.07"]
[SourceVersion "1"]
[SourceVersionDate "2003.03.07"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. Nf3 g6 4. Nc3 cxd4 5. Nxd4 Nc6 6. Nc2 Bg7 7. e4 d6 8. Be2 0-0 9. 0-0 a6 10. Bg5 Rb8 11. a4 Be6 12. Qd2 Na5 13. Nd4 Bxc4 14. Rad1 Nb3 15. Qe3 Qc7 16. Bxc4 Qxc4 17. Nxb3 Qxb3 18. Nd5 Qxe3 19. Nxe7+ Kh8 20. Bxe3 Nxe4 21. Bd4 Rfe8 22. f3 Rxe7 23. Bxg7+ Kxg7 24. fxe4 Rc8 25. Rxd6 Rc4 26. a5 Rb4 27. Rf2 Rb5 28. Rd5 Rxd5 29. exd5 Rd7 30. Rf4 Rxd5 31. Rb4 Rxa5 32. Rxb7 Rb5 33. Ra7 a5 34. Ra6 h5 35. h4 Rf5 36. Kh2 Rf4 37. Kg3 Rg4+ 38. Kh3 a4 39. b3 axb3 40. Rb6 Re4 41. Rxb3 Kf6 42. Rb7 Ke6 43. g3 Rd4 44. Ra7 Rd7 45. Ra5 f6 46. Rb5 Rd5 47. Rb6+ Kf5 48. Rb4 g5 49. hxg5 Kxg5 50. Ra4 Rd3 51. Ra5+ f5 52. Ra4 Re3 53. Rb4 Re4 54. Rb8 Re6 55. Rb4 Kg6 56. Ra4 Re4 1/2-1/2

[Event "Villa Ballester op 53th"]
[Site "Villa Ballester"]
[Date "2003.01.14"]
[Round "5"]
[White "Costanzo, Hugo Fernando"]
[Black "O'Patril, Guillermo"]
[Result "0-1"]
[ECO "E43"]
[PlyCount "86"]
[EventDate "2003.01.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 092 Extra"]
[Source "ChessBase"]
[SourceDate "2003.03.07"]
[SourceVersion "1"]
[SourceVersionDate "2003.03.07"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. Nc3 Bb7 5. e3 Bb4 6. Bd3 0-0 7. 0-0 Qe7 8. Nb5 a6 9. Nc3 d5 10. Na4 dxc4 11. Be2 Rd8 12. a3 Bd6 13. Qe1 Nbd7 14. Bd2 b5 15. Nc3 c5 16. h3 Rac8 17. Na2 cxd4 18. exd4 e5 19. Ba5 Re8 20. Qd1 e4 21. Re1 exf3 22. Bxf3 Bxf3 23. Rxe7 Bxd1 24. Rxe8+ Rxe8 25. Rxd1 Re2 26. Rb1 Ne4 27. Nc3 Nxc3 28. Bxc3 Nb6 29. Kf1 Rc2 30. Re1 Kf8 31. Re2 Rxe2 32. Kxe2 Nd5 33. Ba5 Ke7 34. g3 Bc7 35. Bd2 a5 36. Kd1 b4 37. axb4 axb4 38. Kc2 Ke6 39. g4 Bb6 40. Be3 Nxe3+ 41. fxe3 Kd5 42. Kd2 Ke4 43. Ke2 c3 0-1

[Event "Villa Ballester op 53th"]
[Site "Villa Ballester"]
[Date "2003.01.10"]
[Round "2"]
[White "Barbeito, Santiago"]
[Black "O'Patril, Guillermo"]
[Result "1-0"]
[ECO "D03"]
[PlyCount "83"]
[EventDate "2003.01.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 092 Extra"]
[Source "ChessBase"]
[SourceDate "2003.03.07"]
[SourceVersion "1"]
[SourceVersionDate "2003.03.07"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. Bg5 h6 4. Bh4 d5 5. Nbd2 Be7 6. e3 Nbd7 7. Bd3 0-0 8. 0-0 c5 9. c3 b6 10. Ne5 Nxe5 11. dxe5 Nd7 12. Bxe7 Qxe7 13. f4 f5 14. exf6 Qxf6 15. e4 a5 16. e5 Qe7 17. Qe2 c4 18. Bc2 Qh4 19. g3 Qh3 20. Qg2 Qxg2+ 21. Kxg2 Nc5 22. Rf3 Bb7 23. Re1 b5 24. Kg1 d4 25. cxd4 Bxf3 26. Nxf3 Na6 27. Be4 Rad8 28. Rd1 Nb4 29. a3 Nd5 30. Rc1 Rc8 31. f5 c3 32. b3 Kf7 33. Ne1 b4 34. a4 Ne3 35. fxe6+ Kxe6 36. Nd3 g5 37. Re1 Nd5 38. Bg2 c2 39. Bh3+ Ke7 40. Bxc8 Rxc8 41. Kf2 Nc3 42. Ke3 1-0

[Event "Villa Ballester op 53th"]
[Site "Villa Ballester"]
[Date "2003.01.08"]
[Round "1"]
[White "O'Patril, Guillermo"]
[Black "Chadwick, Norman William"]
[Result "0-1"]
[ECO "B41"]
[BlackElo "2165"]
[PlyCount "36"]
[EventDate "2003.01.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 092 Extra"]
[Source "ChessBase"]
[SourceDate "2003.03.07"]
[SourceVersion "1"]
[SourceVersionDate "2003.03.07"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. Nc3 cxd4 5. Nxd4 a6 6. e4 Bb4 7. Qf3 Bxc3+ 8. bxc3 Qa5 9. Nb3 Qe5 10. Bd3 d5 11. cxd5 exd5 12. 0-0 dxe4 13. Re1 exf3 14. Rxe5+ Be6 15. Nd4 Nbd7 16. Re1 0-0-0 17. Nxe6 fxe6 18. Rxe6 Nc5 0-1

