[Event "Olympiad-22"]
[Site "Haifa"]
[Date "1976.11.07"]
[Round "12.3"]
[White "Janetschek, Karl"]
[Black "Chaves, Marco"]
[Result "1-0"]
[ECO "B04"]
[WhiteElo "2355"]
[PlyCount "143"]
[EventDate "1976.10.25"]
[EventType "team-swiss"]
[EventRounds "13"]
[EventCountry "ISR"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]
[WhiteTeam "Austria"]
[BlackTeam "Costa Rica"]
[WhiteTeamCountry "AUT"]
[BlackTeamCountry "CRI"]

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 g6 5. Bc4 Nb6 6. Bb3 Bg7 7. 0-0 0-0 8. Bg5 h6 9. Bf4 Nc6 10. exd6 exd6 11. c3 Bf5 12. Na3 Na5 13. Bc2 Qf6 14. Bg3 a6 15. Bd3 Rfe8 16. Qc2 Bxd3 17. Qxd3 Nc6 18. Rfe1 Kf8 19. Nc2 Nd5 20. Re4 Re7 21. Rxe7 Ncxe7 22. c4 Nb6 23. Re1 Qf5 24. Qb3 Nc6 25. Bxd6+ cxd6 26. Qxb6 Qxc2 27. Qxb7 Rd8 28. Qxc6 Qxb2 29. Qxa6 Bxd4 30. Nxd4 Qxd4 31. Qb7 Kg7 32. Qe4 Qd2 33. Qe2 Qd4 34. Rd1 Qf6 35. g3 Rb8 36. Qe3 Rb2 37. a3 Rc2 38. Qd4 Qxd4 39. Rxd4 Ra2 40. Rd3 Rc2 41. Rxd6 Rxc4 42. Rd1 Ra4 43. Rd3 g5 44. Kf1 h5 45. h3 f5 46. Ke2 Kf6 47. Kd2 h4 48. Rb3 Ke5 49. Re3+ Kf6 50. gxh4 Rxh4 51. Kc3 Rf4 52. Re2 Rf3+ 53. Kb4 Rxh3 54. a4 g4 55. a5 Rh8 56. a6 f4 57. Kb5 Ra8 58. Kb6 Kf5 59. a7 g3 60. f3 Rh8 61. Ra2 Ke5 62. a8Q Rxa8 63. Rxa8 Kd4 64. Re8 g2 65. Re1 Kd3 66. Kc5 Kd2 67. Rg1 Ke3 68. Rxg2 Kxf3 69. Ra2 Ke3 70. Ra3+ Ke2 71. Kd4 f3 72. Re3+ 1-0

[Event "Olympiad-22"]
[Site "Haifa"]
[Date "1976.11.04"]
[Round "10.3"]
[White "Chaves, Marco"]
[Black "Garcia, M."]
[Result "1-0"]
[ECO "E07"]
[PlyCount "47"]
[EventDate "1976.10.25"]
[EventType "team-swiss"]
[EventRounds "13"]
[EventCountry "ISR"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]
[WhiteTeam "Costa Rica"]
[BlackTeam "Bolivia"]
[WhiteTeamCountry "CRI"]
[BlackTeamCountry "BOL"]

1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Be7 5. Nf3 0-0 6. b3 Nbd7 7. 0-0 c5 8. cxd5 Nxd5 9. e4 N5f6 10. Qe2 b6 11. Rd1 Bb7 12. dxc5 Bxc5 13. Ne5 Qc7 14. Nxd7 Nxd7 15. Bb2 Ne5 16. Nc3 Bc6 17. Qh5 f5 18. Ne2 g6 19. Qg5 Ng4 20. Bd4 Be7 21. Qc1 e5 22. exf5 Rad8 23. Bxc6 exd4 24. Bd5+ 1-0

[Event "Olympiad-22"]
[Site "Haifa"]
[Date "1976.11.02"]
[Round "8.4"]
[White "Garrido, Federico"]
[Black "Chaves, Marco"]
[Result "1-0"]
[ECO "E29"]
[PlyCount "80"]
[EventDate "1976.10.25"]
[EventType "team-swiss"]
[EventRounds "13"]
[EventCountry "ISR"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]
[WhiteTeam "Guatemala"]
[BlackTeam "Costa Rica"]
[WhiteTeamCountry "GUA"]
[BlackTeamCountry "CRI"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. e3 0-0 7. Bd3 d6 8. Ne2 Nc6 9. 0-0 b6 10. Ng3 e5 11. Bb2 Re8 12. Qf3 d5 13. Qd1 cxd4 14. cxd4 exd4 15. exd4 dxc4 16. Bxc4 Na5 17. Bd3 Be6 18. Re1 Rc8 19. Nh5 Nd5 20. Qf3 Qg5 21. h3 Nc6 22. Bb5 Red8 23. Rad1 Qf5 24. Qxf5 Bxf5 25. Ng3 Bc2 26. Rc1 Na5 27. Ba6 Rc7 28. Re2 Ba4 29. Rxc7 Nxc7 30. Bd3 Bb3 31. Re7 Ne6 32. Rxa7 Nc6 33. Rb7 Ncxd4 34. Rxb6 Bd5 35. Nf5 Nxf5 36. Bxf5 Nf4 37. g3 Ne2+ 38. Kh2 Bf3 39. Bc2 Re8 40. Bd3 Kf8 1-0

[Event "Olympiad-22"]
[Site "Haifa"]
[Date "1976.11.01"]
[Round "7.3"]
[White "Ko, Chi"]
[Black "Chaves, Marco"]
[Result "0-1"]
[ECO "B02"]
[PlyCount "112"]
[EventDate "1976.10.25"]
[EventType "team-swiss"]
[EventRounds "13"]
[EventCountry "ISR"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]
[WhiteTeam "Hong Kong"]
[BlackTeam "Costa Rica"]
[WhiteTeamCountry "HKG"]
[BlackTeamCountry "CRI"]

1. e4 Nf6 2. Nc3 e6 3. e5 Nd5 4. Nxd5 exd5 5. d4 d6 6. Bf4 dxe5 7. dxe5 Bc5 8. Be2 0-0 9. Nf3 Nc6 10. h3 Ne7 11. c3 Ng6 12. Bg3 a5 13. Qc2 c6 14. Bd3 Re8 15. 0-0 Bd7 16. Rfe1 Nf8 17. Kh1 b5 18. Nd4 Qg5 19. Kh2 Ng6 20. Nf3 Qh5 21. Re2 Bxh3 22. Bxg6 hxg6 23. gxh3 Qxf3 24. Rae1 Re6 25. Qd2 Kh7 26. Qf4 Qxf4 27. Bxf4 Rae8 28. Bg3 g5 29. Kg2 Kg6 30. h4 gxh4 31. Bxh4 Kf5 32. Bg3 Rh8 33. Rg1 g5 34. f4 g4 35. Rh1 Rxh1 36. Kxh1 Rh6+ 37. Kg2 Be7 38. Re1 Rh3 39. Re2 Rh6 40. Kg1 Rh3 41. Kg2 Rh6 42. Bh2 a4 43. Bg1 Rh3 44. Be3 Bh4 45. Bd2 Rg3+ 46. Kh2 Rf3 47. Kg2 c5 48. Be3 c4 49. Bd2 Rd3 50. Be3 a3 51. Bd4 Be7 52. bxa3 Bxa3 53. Rc2 b4 54. cxb4 Rxd4 55. b5 Rd1 56. b6 Rb1 0-1

[Event "Olympiad-22"]
[Site "Haifa"]
[Date "1976.10.28"]
[Round "4.3"]
[White "Small, Vernon A"]
[Black "Chaves, Marco"]
[Result "1-0"]
[ECO "B05"]
[PlyCount "105"]
[EventDate "1976.10.25"]
[EventType "team-swiss"]
[EventRounds "13"]
[EventCountry "ISR"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]
[WhiteTeam "New Zealand"]
[BlackTeam "Costa Rica"]
[WhiteTeamCountry "NZL"]
[BlackTeamCountry "CRI"]

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 Bg4 5. Be2 e6 6. 0-0 Be7 7. c4 Nb6 8. Nc3 d5 9. c5 N6d7 10. b4 b6 11. Be3 Nf8 12. Qd2 Ng6 13. Rac1 0-0 14. h3 Bxf3 15. Bxf3 bxc5 16. bxc5 Nc6 17. Rfd1 Nh4 18. Be2 Rb8 19. Bb5 Na5 20. Rb1 c6 21. Bd3 Qc7 22. Ne2 Rxb1 23. Rxb1 Nb7 24. Qb4 Na5 25. Bd2 Bd8 26. Qa4 f6 27. Bxa5 Qxa5 28. Qxc6 fxe5 29. Qxe6+ Kh8 30. Qxd5 exd4 31. Qd6 Rf6 32. Qxd4 Rf8 33. Qd6 Rf6 34. Qd7 Rf8 35. Qd6 Rf6 36. Qd5 Rf8 37. Be4 Qa4 38. g3 Ng6 39. Bxg6 hxg6 40. Nf4 Qc2 41. Qd3 Qxd3 42. Nxd3 Rf5 43. Kf1 Kh7 44. Rb7 a5 45. c6 Rd5 46. Ke2 Kh6 47. c7 Bxc7 48. Rxc7 Rd4 49. Rc3 g5 50. Ke3 Ra4 51. a3 Kg6 52. Nc5 Rxa3 53. Rxa3 1-0

[Event "Olympiad-22"]
[Site "Haifa"]
[Date "1976.10.27"]
[Round "3.3"]
[White "Chaves, Marco"]
[Black "Rumsch, B."]
[Result "1-0"]
[ECO "A32"]
[PlyCount "47"]
[EventDate "1976.10.25"]
[EventType "team-swiss"]
[EventRounds "13"]
[EventCountry "ISR"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]
[WhiteTeam "Costa Rica"]
[BlackTeam "US Virgin Islands"]
[WhiteTeamCountry "CRI"]
[BlackTeamCountry "ISV"]

1. d4 Nf6 2. c4 e6 3. g3 c5 4. Nf3 cxd4 5. Nxd4 a6 6. Bg2 Nc6 7. 0-0 g6 8. b3 Bg7 9. Bb2 0-0 10. Nc3 Rb8 11. Rc1 Ne7 12. Ba3 Re8 13. Bd6 Ra8 14. e4 e5 15. Nf3 Nc6 16. Re1 h6 17. Nd5 Re6 18. Bc5 Ne8 19. Bb6 Qe7 20. Nxe7+ Nxe7 21. Be3 b6 22. Qd2 Bb7 23. Bxh6 Rd6 24. Qe3 1-0

[Event "Olympiad-22"]
[Site "Haifa"]
[Date "1976.10.26"]
[Round "2.4"]
[White "Chaves, Marco"]
[Black "Ferreira, Oscar"]
[Result "0-1"]
[ECO "A56"]
[PlyCount "90"]
[EventDate "1976.10.25"]
[EventType "team-swiss"]
[EventRounds "13"]
[EventCountry "ISR"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]
[WhiteTeam "Costa Rica"]
[BlackTeam "Paraguay"]
[WhiteTeamCountry "CRI"]
[BlackTeamCountry "PAR"]

1. d4 Nf6 2. c4 c5 3. d5 d6 4. Nc3 e5 5. dxe6 Bxe6 6. e4 Be7 7. Nf3 0-0 8. Be2 Nc6 9. 0-0 a6 10. h3 Re8 11. Bf4 Qb6 12. Qc2 Bf8 13. Rad1 Rad8 14. a3 h6 15. Rfe1 Qc7 16. Nd5 Bxd5 17. exd5 Nb8 18. Qf5 Nbd7 19. Bf1 g6 20. Qc2 Rxe1 21. Rxe1 Re8 22. Rxe8 Nxe8 23. Qd2 Kh7 24. b4 Qd8 25. Qe3 Nef6 26. Bd3 Qe8 27. Qxe8 Nxe8 28. Nd2 f5 29. g4 fxg4 30. hxg4 Bg7 31. Ne4 Be5 32. Be3 b6 33. bxc5 Nxc5 34. Nxc5 dxc5 35. f4 Bd4 36. Bxd4 cxd4 37. Kf2 Kg7 38. a4 Nd6 39. a5 bxa5 40. c5 Nb7 41. c6 Nd6 42. Bxa6 a4 43. Bd3 a3 44. Bb1 h5 45. gxh5 gxh5 0-1

