[Event "MEX-ch op "]
[Site "Guadalajara"]
[Date "1974.??.??"]
[Round "?"]
[White "Palos Baez, Enrique"]
[Black "Rizo, Victor M"]
[Result "1-0"]
[ECO "C18"]
[PlyCount "65"]
[EventDate "1974.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "MEX"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 cxd4 6. axb4 dxc3 7. Nf3 Qc7 8. bxc3 Qxc3+ 9. Bd2 Qc7 10. Bd3 Nd7 11. Qe2 Ne7 12. 0-0 Nb6 13. Rfe1 Nc4 14. Bc3 Ng6 15. g3 Bd7 16. Bd4 b6 17. Ng5 h6 18. Nxf7 Kxf7 19. Qh5 Raf8 20. Bxg6+ Kg8 21. Re2 a5 22. bxa5 bxa5 23. f4 Qc8 24. f5 Be8 25. f6 Bxg6 26. Qxg6 Rf7 27. g4 Rh7 28. Rb1 Rf8 29. Rf2 a4 30. Rb4 a3 31. Ra4 Kh8 32. Ra7 Rg8 33. Rf7 1-0

[Event "Olympiad-19 Final D"]
[Site "Siegen"]
[Date "1970.09.24"]
[Round "10"]
[White "Rizo, Victor M"]
[Black "Bloch, Nigel"]
[Result "1-0"]
[ECO "D05"]
[PlyCount "56"]
[EventDate "1970.09.05"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]
[WhiteTeam "Mexico"]
[BlackTeam "South Africa"]
[WhiteTeamCountry "MEX"]
[BlackTeamCountry "RSA"]

1. d4 Nf6 2. Nf3 e6 3. Nbd2 d5 4. e3 c5 5. c3 Nc6 6. Bd3 Be7 7. 0-0 0-0 8. Ne5 Qc7 9. f4 b6 10. Rf3 Bb7 11. Rh3 g6 12. Qf3 Rad8 13. Rh6 Rfe8 14. Qh3 Bf8 15. Rh4 h6 16. Ndf3 Nxe5 17. fxe5 Nh7 18. Bd2 h5 19. Rf1 Qe7 20. Kh1 Ng5 21. Nxg5 Qxg5 22. Rhf4 Re7 23. Be1 Qh6 24. Bh4 g5 25. Qg3 Qg7 26. Bxg5 Rdd7 27. Qh4 Qh8 28. Bf6 Qh6 1-0

[Event "Olympiad-19 Final D"]
[Site "Siegen"]
[Date "1970.09.23"]
[Round "9"]
[White "Rizo, Victor M"]
[Black "Philippe, Georges"]
[Result "1/2-1/2"]
[ECO "E14"]
[PlyCount "74"]
[EventDate "1970.09.05"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]
[WhiteTeam "Mexico"]
[BlackTeam "Luxembourg"]
[WhiteTeamCountry "MEX"]
[BlackTeamCountry "LUX"]

1. Nf3 d5 2. e3 Nf6 3. b3 e6 4. Bb2 Nbd7 5. Be2 Be7 6. 0-0 0-0 7. c4 b6 8. Nc3 Bb7 9. Rc1 c5 10. d4 Rc8 11. Ne5 Nxe5 12. dxe5 Ne4 13. Qc2 Nxc3 14. Bxc3 dxc4 15. bxc4 Qc7 16. f4 f5 17. exf6 Bxf6 18. Bd3 Bxc3 19. Qxc3 Rce8 20. Qc2 g6 21. Be4 Bxe4 22. Qxe4 Qf7 23. Rcd1 Rd8 24. Qe5 Qe7 25. g4 Rfe8 26. Kg2 Rd7 27. Rxd7 Qxd7 28. Qe4 Rd8 29. Rf2 a6 30. Rc2 Rc8 31. Kg3 b5 32. Rc3 bxc4 33. Qxc4 Qd5 34. Qxa6 Ra8 35. Qb5 Rxa2 36. Qe8+ Kg7 37. Qe7+ Kg8 1/2-1/2

[Event "Olympiad-19 Final D"]
[Site "Siegen"]
[Date "1970.09.22"]
[Round "8"]
[White "Rizo, Victor M"]
[Black "Kennefick, Maurice"]
[Result "1/2-1/2"]
[ECO "A68"]
[PlyCount "84"]
[EventDate "1970.09.05"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]
[WhiteTeam "Mexico"]
[BlackTeam "Ireland"]
[WhiteTeamCountry "MEX"]
[BlackTeamCountry "IRL"]

1. e4 g6 2. d4 Bg7 3. f4 c5 4. d5 d6 5. c4 e6 6. Nf3 exd5 7. cxd5 Nf6 8. Nc3 0-0 9. Bd3 Re8 10. 0-0 c4 11. Bc2 b5 12. a3 Bd7 13. Qe2 a5 14. e5 Qc7 15. h3 Nh5 16. Re1 Bh6 17. Qe4 Na6 18. g4 f5 19. Qd4 fxg4 20. hxg4 Bxg4 21. Nxb5 Qd7 22. Nh2 Bg7 23. Nc3 Bf5 24. Ba4 Qe7 25. Bxe8 Rxe8 26. Nf3 Bg4 27. Ng5 h6 28. Ne6 Bxe6 29. dxe6 Qxe6 30. Qd5 Qxd5 31. Nxd5 dxe5 32. Bd2 Rd8 33. Ne7+ Kf7 34. Bxa5 Kxe7 35. Bxd8+ Kxd8 36. fxe5 Nc5 37. Rad1+ Ke7 38. Rd2 Nf4 39. Rc1 Nb3 40. Rxc4 Nxd2 41. Rxf4 Bxe5 42. Rb4 Nf3+ 1/2-1/2

[Event "Olympiad-19 Final D"]
[Site "Siegen"]
[Date "1970.09.21"]
[Round "7"]
[White "Castagna, Rino"]
[Black "Rizo, Victor M"]
[Result "1-0"]
[ECO "E18"]
[PlyCount "83"]
[EventDate "1970.09.05"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]
[WhiteTeam "Switzerland"]
[BlackTeam "Mexico"]
[WhiteTeamCountry "SUI"]
[BlackTeamCountry "MEX"]

1. d4 Nf6 2. Nf3 e6 3. g3 b6 4. Bg2 Bb7 5. c4 Be7 6. Nc3 0-0 7. 0-0 d5 8. Ne5 c5 9. cxd5 cxd4 10. Qxd4 Bc5 11. Qh4 exd5 12. Bg5 Be7 13. Rad1 h6 14. Bxh6 gxh6 15. Qxh6 Qd6 16. Qg5+ Kh8 17. Rd4 Nh7 18. Qh5 Nd7 19. Nxd7 Qxd7 20. Nxd5 Rad8 21. Rfd1 Qe6 22. e4 Bc5 23. Nf4 Rxd4 24. Nxe6 Rxd1+ 25. Qxd1 fxe6 26. b4 Bxf2+ 27. Kh1 e5 28. Qd7 Ba8 29. Qe7 Bd4 30. h4 Bc6 31. Kh2 a6 32. g4 Rf2 33. Kg3 Nf6 34. Qd8+ Ng8 35. Qc7 Bb5 36. h5 Rf4 37. Bf3 Bd3 38. g5 Bxe4 39. Bxe4 Rxe4 40. h6 Re3+ 41. Kg4 Nxh6+ 42. gxh6 1-0

[Event "Olympiad-19 Final D"]
[Site "Siegen"]
[Date "1970.09.19"]
[Round "6"]
[White "Rizo, Victor M"]
[Black "Adhami, Vangjel"]
[Result "0-1"]
[ECO "D04"]
[PlyCount "74"]
[EventDate "1970.09.05"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]
[WhiteTeam "Mexico"]
[BlackTeam "Albania"]
[WhiteTeamCountry "MEX"]
[BlackTeamCountry "ALB"]

1. Nf3 c5 2. e3 Nf6 3. b3 Nc6 4. Bb2 d5 5. d4 Bg4 6. h3 Bh5 7. Nbd2 e6 8. g4 Bg6 9. Nh4 cxd4 10. Nxg6 hxg6 11. exd4 Qb6 12. c3 Bd6 13. Qe2 Bf4 14. Bg2 g5 15. 0-0-0 a5 16. Qd3 a4 17. b4 a3 18. Ba1 0-0 19. Kb1 Bxd2 20. Rxd2 Rfc8 21. Rc2 Rc7 22. Re2 Ra4 23. Rc2 Rxb4+ 24. Kc1 Rc4 25. Rd2 Nxd4 26. Qe3 e5 27. Rd3 e4 28. Rd2 Qb4 29. Rxd4 Rxd4 30. Qg3 Rdc4 31. Kd2 Qb6 32. h4 Nxg4 33. Bf1 Qxf2+ 34. Qxf2 Nxf2 35. Bxc4 Nxh1 36. Bxd5 gxh4 37. Bxe4 Ng3 0-1

[Event "Olympiad-19 Final D"]
[Site "Siegen"]
[Date "1970.09.18"]
[Round "5"]
[White "Rego, Francisco Ernesto"]
[Black "Rizo, Victor M"]
[Result "0-1"]
[ECO "E17"]
[PlyCount "62"]
[EventDate "1970.09.05"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]
[WhiteTeam "Portugal"]
[BlackTeam "Mexico"]
[WhiteTeamCountry "POR"]
[BlackTeamCountry "MEX"]

1. c4 e6 2. g3 Nf6 3. Bg2 d5 4. Nf3 Be7 5. 0-0 0-0 6. b3 b6 7. Bb2 Bb7 8. d4 Ne4 9. cxd5 exd5 10. Ne5 Nd7 11. Nd3 Bd6 12. f3 Nxg3 13. hxg3 Bxg3 14. Nd2 Qh4 15. Re1 Qh2+ 16. Kf1 Nf6 17. e4 Ba6 18. Qc2 Bxe1 19. Rxe1 Nh5 20. Nc4 dxc4 21. bxc4 Rfe8 22. d5 Rad8 23. Bd4 Bc8 24. Bg1 Ng3+ 25. Kf2 Qh4 26. Ke3 c6 27. Kd2 cxd5 28. cxd5 Ba6 29. Nb4 Rc8 30. Qa4 Qg5+ 31. Be3 Nxe4+ 0-1

[Event "Olympiad-19 Final D"]
[Site "Siegen"]
[Date "1970.09.17"]
[Round "4"]
[White "Loheac Amoun, Frank"]
[Black "Rizo, Victor M"]
[Result "1/2-1/2"]
[ECO "B25"]
[PlyCount "106"]
[EventDate "1970.09.05"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]
[WhiteTeam "Lebanon"]
[BlackTeam "Mexico"]
[WhiteTeamCountry "LBN"]
[BlackTeamCountry "MEX"]

1. e4 c5 2. Nf3 d6 3. g3 Nf6 4. d3 g6 5. Bg2 Nc6 6. Nc3 Bg7 7. 0-0 0-0 8. Ng5 h6 9. Nh3 Nd4 10. Be3 Ng4 11. Bd2 e5 12. Nd5 Nf6 13. Nxf6+ Qxf6 14. f4 Qe7 15. c3 Nc6 16. f5 Kh7 17. Qg4 Bd7 18. Rf2 Rh8 19. Raf1 Bf6 20. Qe2 Raf8 21. Qe3 Kg7 22. g4 Kg8 23. Bf3 Bh4 24. Rg2 g5 25. Bd1 f6 26. Bb3+ Kg7 27. Kh1 Be8 28. Ng1 h5 29. Bd1 hxg4 30. Bxg4 Rh6 31. Nf3 Rfh8 32. Rfg1 Kf8 33. Rd1 Bh5 34. Nxh4 Bxg4 35. Rxg4 Rxh4 36. Rxh4 Rxh4 37. Be1 Rh6 38. Bg3 Qf7 39. b3 Qh5 40. Rf1 Qh3 41. Qf3 g4 42. Qg2 Qh5 43. Be1 Rh7 44. Rg1 b5 45. Bf2 a5 46. Qg3 b4 47. c4 Nd8 48. Rg2 Rg7 49. Qh4 Qxh4 50. Bxh4 Kf7 51. Kg1 Nc6 52. Bf2 Ne7 53. Be3 Nc8 1/2-1/2

[Event "Olympiad-19 Final D"]
[Site "Siegen"]
[Date "1970.09.16"]
[Round "3"]
[White "Rizo, Victor M"]
[Black "Vasquez, Julio E"]
[Result "0-1"]
[ECO "D17"]
[PlyCount "82"]
[EventDate "1970.09.05"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]
[WhiteTeam "Mexico"]
[BlackTeam "Peru"]
[WhiteTeamCountry "MEX"]
[BlackTeamCountry "PER"]

1. d4 d5 2. Nf3 Nf6 3. c4 c6 4. Nc3 dxc4 5. a4 Bf5 6. Ne5 e6 7. Bg5 Be7 8. e3 Nbd7 9. Nxc4 0-0 10. Be2 Ne4 11. Bxe7 Qxe7 12. 0-0 e5 13. Nxe4 Bxe4 14. f3 Bd5 15. Nxe5 Nxe5 16. dxe5 Qxe5 17. e4 Be6 18. Qc2 Rad8 19. Rfd1 Qa5 20. Kf1 Qc7 21. h3 Rxd1+ 22. Rxd1 Qb6 23. Qc3 a5 24. f4 Bb3 25. Rd7 Bxa4 26. e5 c5 27. Re7 Re8 28. Rxe8+ Bxe8 29. f5 Qb4 30. Qg3 Qxb2 31. f6 Qb1+ 32. Kf2 Qg6 33. Qf4 Bc6 34. Bf1 a4 35. Kg1 h6 36. Qf2 a3 37. Qa2 Qg3 38. Bc4 Qe1+ 39. Kh2 Qxe5+ 40. Kh1 Qxf6 41. Qxa3 Qf2 0-1

[Event "Olympiad-19 Final D"]
[Site "Siegen"]
[Date "1970.09.15"]
[Round "2"]
[White "Andujar, Miguel"]
[Black "Rizo, Victor M"]
[Result "0-1"]
[ECO "E01"]
[PlyCount "56"]
[EventDate "1970.09.05"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]
[WhiteTeam "Dominican Rep"]
[BlackTeam "Mexico"]
[WhiteTeamCountry "DOM"]
[BlackTeamCountry "MEX"]

1. c4 Nf6 2. Nc3 e6 3. g3 d5 4. d4 c6 5. c5 Be7 6. Bg2 Nbd7 7. f4 0-0 8. Nf3 b6 9. Ne5 Bb7 10. cxb6 axb6 11. 0-0 c5 12. e3 Ne4 13. Bh3 f5 14. g4 Nxe5 15. fxe5 g6 16. Ne2 Ba6 17. gxf5 gxf5 18. Rf3 Bxe2 19. Qxe2 Bh4 20. Bd2 Kh8 21. Bg2 Rg8 22. Kh1 Qg5 23. Rf4 Nxd2 24. Qxd2 Qh6 25. Rf3 Bg3 26. h3 Ra4 27. b3 Rxd4 28. Qe2 Rh4 0-1

[Event "Olympiad-19 Preliminaries C"]
[Site "Siegen"]
[Date "1970.09.13"]
[Round "9"]
[White "Rizo, Victor M"]
[Black "Van Schoor, Karl"]
[Result "1-0"]
[ECO "B06"]
[PlyCount "51"]
[EventDate "1970.09.05"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]
[WhiteTeam "Mexico"]
[BlackTeam "Belgium"]
[WhiteTeamCountry "MEX"]
[BlackTeamCountry "BEL"]

1. d4 g6 2. e4 Bg7 3. f4 d6 4. Nf3 Nf6 5. e5 dxe5 6. fxe5 Nd5 7. c4 Nb6 8. Nc3 0-0 9. h3 c5 10. d5 e6 11. Be2 N6d7 12. Bf4 exd5 13. Qxd5 Re8 14. Rd1 Nc6 15. 0-0 Qe7 16. Bg5 Qf8 17. Nb5 Ndxe5 18. Nc7 Be6 19. Qd2 Nxc4 20. Bxc4 Bxc4 21. Nxe8 Rxe8 22. Rfe1 Bxa2 23. Qd7 Be6 24. Qxb7 Rc8 25. Bf4 Qe7 26. Qxc8+ 1-0

[Event "Olympiad-19 Preliminaries C"]
[Site "Siegen"]
[Date "1970.09.12"]
[Round "8"]
[White "Baumbach, Friedrich"]
[Black "Rizo, Victor M"]
[Result "1-0"]
[ECO "A30"]
[PlyCount "81"]
[EventDate "1970.09.05"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]
[WhiteTeam "German Dem Rep"]
[BlackTeam "Mexico"]
[WhiteTeamCountry "DDR"]
[BlackTeamCountry "MEX"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 c5 6. 0-0 Be7 7. Nc3 d5 8. Ne5 cxd4 9. Qxd4 0-0 10. Rd1 Na6 11. cxd5 Bc5 12. Qd2 exd5 13. Nxd5 Bxd5 14. Bxd5 Nxd5 15. Qxd5 Qxd5 16. Rxd5 Rfe8 17. Nd3 Rxe2 18. Kf1 Rae8 19. Be3 Rc2 20. Rc1 Rxc1+ 21. Bxc1 Nb4 22. Nxb4 Bxb4 23. Be3 f6 24. Rd7 Ra8 25. Ke2 Kf8 26. Kd3 Be7 27. Kc4 b5+ 28. Kxb5 Rb8+ 29. Kc4 Rxb2 30. Rxa7 Rc2+ 31. Kb3 Rc8 32. a4 Kf7 33. a5 Ke6 34. a6 g5 35. Rb7 h6 36. a7 Bd6 37. Rh7 Bf8 38. Ka4 Kd5 39. Kb5 f5 40. Ka6 Kc6 41. Rf7 1-0

[Event "Olympiad-19 Preliminaries C"]
[Site "Siegen"]
[Date "1970.09.11"]
[Round "7"]
[White "Langeweg, Kick"]
[Black "Rizo, Victor M"]
[Result "1-0"]
[ECO "A35"]
[PlyCount "83"]
[EventDate "1970.09.05"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]
[WhiteTeam "Netherlands"]
[BlackTeam "Mexico"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "MEX"]

1. Nf3 c5 2. c4 Nc6 3. Nc3 g6 4. e3 Bg7 5. d4 cxd4 6. exd4 d6 7. Be2 Bd7 8. 0-0 Rc8 9. Be3 Nf6 10. h3 0-0 11. d5 Na5 12. b3 a6 13. a4 Bf5 14. Nd4 e5 15. Nxf5 gxf5 16. Rb1 f4 17. Bd2 Re8 18. Qc2 b6 19. Qf5 Nb7 20. Bd3 Nc5 21. Bc2 Ncd7 22. Kh1 Nf8 23. Ne4 Nxe4 24. Bxe4 Qf6 25. a5 b5 26. cxb5 axb5 27. Rfc1 Qxf5 28. Bxf5 Rb8 29. a6 Ra8 30. Rc6 Ng6 31. Bd3 Reb8 32. Bb4 Ne7 33. Rxd6 Bf8 34. Rd7 Nxd5 35. Bxf8 Nb6 36. Rb7 Kxf8 37. Rxb8+ Rxb8 38. Bxb5 Nc8 39. Bc4 Nd6 40. Bd5 Nb5 41. Rc1 Rb6 42. Rc5 1-0

[Event "Olympiad-19 Preliminaries C"]
[Site "Siegen"]
[Date "1970.09.10"]
[Round "6"]
[White "Rizo, Victor M"]
[Black "Koskinen, Heikki Kaarlo"]
[Result "0-1"]
[ECO "E66"]
[PlyCount "66"]
[EventDate "1970.09.05"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]
[WhiteTeam "Mexico"]
[BlackTeam "Finland"]
[WhiteTeamCountry "MEX"]
[BlackTeamCountry "FIN"]

1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 0-0 5. 0-0 d6 6. c4 Nc6 7. Nc3 e5 8. d5 Na5 9. Nd2 c5 10. e4 Bd7 11. b3 a6 12. Qc2 b5 13. Bb2 bxc4 14. bxc4 Rb8 15. Ba3 Bh6 16. f4 Ng4 17. Rae1 exf4 18. gxf4 Bg7 19. e5 dxe5 20. h3 exf4 21. Bxc5 Ne3 22. Rxe3 fxe3 23. Bxe3 Re8 24. Nd1 Rc8 25. Kh1 Bb5 26. Rf4 Qc7 27. Ne4 Nxc4 28. d6 Qd7 29. Qb3 Nxd6 30. Nxd6 Qxd6 31. Qxf7+ Kh8 32. Bd5 Qxd5+ 33. Qxd5 Bc6 0-1

[Event "Olympiad-19 Preliminaries C"]
[Site "Siegen"]
[Date "1970.09.09"]
[Round "5"]
[White "Rizo, Victor M"]
[Black "Ozturk, Serdar"]
[Result "1-0"]
[ECO "A47"]
[PlyCount "37"]
[EventDate "1970.09.05"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]
[WhiteTeam "Mexico"]
[BlackTeam "Turkey"]
[WhiteTeamCountry "MEX"]
[BlackTeamCountry "TUR"]

1. d4 Nf6 2. Nf3 b6 3. g3 Bb7 4. Bg2 e6 5. 0-0 c5 6. c3 h6 7. Nbd2 Be7 8. Re1 Ne4 9. Ne5 d5 10. Nxe4 dxe4 11. Qa4+ Kf8 12. dxc5 Qd5 13. Bf4 g5 14. c6 Bxc6 15. Nxc6 Qxc6 16. Qd4 Bc5 17. Qxh8+ Ke7 18. Bxb8 Bd6 19. Bxd6+ 1-0

[Event "Olympiad-19 Preliminaries C"]
[Site "Siegen"]
[Date "1970.09.08"]
[Round "4"]
[White "Mednis, Edmar John"]
[Black "Rizo, Victor M"]
[Result "1-0"]
[ECO "B06"]
[PlyCount "53"]
[EventDate "1970.09.05"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]
[WhiteTeam "United States"]
[BlackTeam "Mexico"]
[WhiteTeamCountry "USA"]
[BlackTeamCountry "MEX"]

1. e4 d6 2. d4 g6 3. f4 Bg7 4. c3 Nc6 5. Nf3 Bg4 6. Bb5 a6 7. Ba4 b5 8. Bb3 h5 9. h3 Bxf3 10. Qxf3 Na5 11. Bc2 e5 12. fxe5 dxe5 13. 0-0 Qd7 14. dxe5 Nc4 15. a4 Nxe5 16. Qg3 c6 17. Bf4 Qe7 18. axb5 cxb5 19. Bb3 h4 20. Qe3 Bh6 21. Na3 Bxf4 22. Qxf4 Qc5+ 23. Kh1 Ra7 24. Nxb5 g5 25. Qf5 Nh6 26. Qf6 0-0 27. Nxa7 1-0

[Event "Olympiad-19 Preliminaries C"]
[Site "Siegen"]
[Date "1970.09.07"]
[Round "3"]
[White "Scherman, Andrew"]
[Black "Rizo, Victor M"]
[Result "0-1"]
[ECO "B06"]
[PlyCount "68"]
[EventDate "1970.09.05"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]
[WhiteTeam "British Virgin Islands"]
[BlackTeam "Mexico"]
[WhiteTeamCountry "IVB"]
[BlackTeamCountry "MEX"]

1. e4 g6 2. d4 d6 3. Nf3 Bg7 4. Nc3 Nc6 5. Bf4 Bg4 6. Be2 Bxf3 7. Bxf3 Nxd4 8. Bg4 e5 9. Be3 c6 10. Bf3 Qb6 11. Rb1 Ne7 12. Be2 0-0 13. 0-0 d5 14. f3 Nxe2+ 15. Qxe2 d4 16. Bf2 Rad8 17. Nd1 Qa5 18. a3 c5 19. Bh4 Qc7 20. Qc4 Rd7 21. Nf2 Kh8 22. Nd3 b6 23. a4 Nc6 24. Rbd1 f5 25. Bg5 h6 26. Bd2 Rdf7 27. Nf2 Qd6 28. b3 Nd8 29. Qd3 Qe6 30. Qe2 Nb7 31. g4 Nd6 32. gxf5 gxf5 33. exf5 Nxf5 34. Ne4 Nh4 0-1

[Event "Olympiad-19 Preliminaries C"]
[Site "Siegen"]
[Date "1970.09.06"]
[Round "2"]
[White "Rizo, Victor M"]
[Black "Toth, Peter"]
[Result "1-0"]
[ECO "E69"]
[PlyCount "91"]
[EventDate "1970.09.05"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]
[WhiteTeam "Mexico"]
[BlackTeam "Brazil"]
[WhiteTeamCountry "MEX"]
[BlackTeamCountry "BRA"]

1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 0-0 5. 0-0 d6 6. c4 Nbd7 7. Nc3 c6 8. e4 Qc7 9. h3 a5 10. Be3 e5 11. d5 cxd5 12. cxd5 Nc5 13. Rc1 b6 14. Re1 Qd7 15. b3 Ba6 16. Bxc5 bxc5 17. Nd2 Bh6 18. Na4 Rfb8 19. Rc2 Bb5 20. Nb2 a4 21. Kh2 axb3 22. axb3 Qb7 23. Ndc4 Ne8 24. Bf1 Bd7 25. Rc3 Qb4 26. Qc2 Ra2 27. Rb1 Bf8 28. Qc1 Nc7 29. Nd3 Qb7 30. Rc2 Rxc2 31. Qxc2 Nb5 32. b4 Nd4 33. Qa2 f5 34. Bg2 Qb5 35. Rb2 Ra8 36. Qxa8 Qxc4 37. bxc5 Qxd3 38. Rb8 Nf3+ 39. Bxf3 Qxf3 40. Rxf8+ Kg7 41. Rg8+ Kh6 42. Qf8+ Kh5 43. g4+ Kg5 44. Qe7+ Kf4 45. Qh4 Kxe4 46. c6 1-0

