[Event "Caracas Macabiadas Panam"]
[Site "Caracas"]
[Date "1987.07.??"]
[Round "4"]
[White "Albo Benarroch, Angel"]
[Black "Bettsak, Abraham"]
[Result "1-0"]
[ECO "B07"]
[PlyCount "63"]
[EventDate "1987.07.20"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "VEN"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Bd3 e6 4. c4 Nc6 5. d5 Ne5 6. f4 Nxd3+ 7. Qxd3 Be7 8. Nf3 0-0 9. Nc3 c6 10. 0-0 Ng4 11. h3 Qb6+ 12. Qd4 Qxd4+ 13. Nxd4 c5 14. Nxe6 fxe6 15. hxg4 Bf6 16. g5 Bd4+ 17. Kh2 exd5 18. cxd5 b6 19. g3 Ba6 20. Re1 Bf2 21. Rd1 Rae8 22. Kg2 Bd4 23. Re1 Bd3 24. Kf3 h5 25. Bd2 Re7 26. g4 hxg4+ 27. Kxg4 Rfe8 28. e5 dxe5 29. d6 Rf7 30. Be3 Bf5+ 31. Kf3 exf4 32. Bxf4 1-0

[Event "Caracas Macabiadas Panam"]
[Site "Caracas"]
[Date "1987.07.??"]
[Round "1"]
[White "Bettsak, Abraham"]
[Black "Grabli, Avi"]
[Result "0-1"]
[ECO "D94"]
[PlyCount "44"]
[EventDate "1987.07.20"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "VEN"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. Nf3 0-0 5. e3 d5 6. h3 c5 7. b3 cxd4 8. Nxd4 Nc6 9. Nxc6 bxc6 10. Bb2 Qa5 11. Rc1 dxc4 12. Bxc4 Nd5 13. Bxd5 cxd5 14. 0-0 e6 15. Rc2 Ba6 16. Re1 Rac8 17. Qd2 Rfd8 18. Rec1 d4 19. exd4 Rxd4 20. Ne4 Rxd2 21. Rxc8+ Bxc8 22. Rxc8+ Rd8 0-1

[Event "Caracas Macabiadas Panam"]
[Site "Caracas"]
[Date "1987.07.??"]
[Round "2"]
[White "Boucchechter, Jacobo"]
[Black "Bettsak, Abraham"]
[Result "1-0"]
[ECO "C28"]
[PlyCount "25"]
[EventDate "1987.07.20"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "VEN"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 e5 2. Nc3 Nf6 3. f4 d6 4. Nf3 Nc6 5. Bc4 Bg4 6. d3 Be7 7. 0-0 Nd4 8. fxe5 dxe5 9. Bxf7+ Kxf7 10. Nxe5+ Kg8 11. Nxg4 Nxg4 12. Qxg4 Nxc2 13. Qe6# 1-0

[Event "Rio de Janeiro U18"]
[Site "Rio de Janeiro"]
[Date "1982.01.??"]
[Round "14"]
[White "Bettsak, Abraham"]
[Black "Braitt, Milton dos Santos"]
[Result "0-1"]
[ECO "E90"]
[PlyCount "66"]
[EventDate "1982.01.02"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 0-0 5. e4 d6 6. Bd3 Nbd7 7. 0-0 e5 8. d5 a5 9. Be3 Ng4 10. Bg5 f6 11. Bd2 Nc5 12. Be2 f5 13. Ng5 h6 14. Nh3 Nf6 15. exf5 Bxf5 16. g4 Bd7 17. f3 h5 18. Ng5 Qe7 19. Qc2 e4 20. fxe4 Bxg4 21. Bxg4 Nxg4 22. h3 Qe5 23. hxg4 Qg3+ 24. Kh1 Qh4+ 25. Kg2 Qxg4+ 26. Kh2 Be5+ 27. Bf4 Bxf4+ 28. Rxf4 Qxf4+ 29. Kh3 Qxg5 30. Rc1 Rf3+ 31. Kh2 Qh4+ 32. Kg2 Qh3+ 33. Kg1 Rg3+ 0-1

[Event "Rio de Janeiro U18"]
[Site "Rio de Janeiro"]
[Date "1982.01.??"]
[Round "8"]
[White "Bettsak, Abraham"]
[Black "Carvalho, Gueber"]
[Result "0-1"]
[ECO "D93"]
[PlyCount "94"]
[EventDate "1982.01.02"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 d5 5. Bf4 c6 6. e3 0-0 7. Rc1 Qa5 8. Bd3 Nbd7 9. 0-0 dxc4 10. Bxc4 Nb6 11. Bb3 Nbd5 12. Be5 Nxc3 13. Rxc3 Ne4 14. Rc1 Bg4 15. Bxg7 Kxg7 16. Rc2 Rad8 17. Qe1 Qxe1 18. Nxe1 Nd6 19. Rc5 Be2 20. Nf3 Bxf1 21. Kxf1 Rfe8 22. Bc2 Rc8 23. Rc3 f6 24. h4 e5 25. dxe5 fxe5 26. Rc5 Kf6 27. g3 b6 28. Rc3 c5 29. a4 e4 30. Nd2 Ke5 31. Bb3 Rcd8 32. Rc2 Nb7 33. Bc4 Na5 34. Bb5 Re6 35. Ke2 Nc6 36. b3 Nb4 37. Rb2 Rf6 38. Rb1 Rdf8 39. Rf1 Nd5 40. Nb1 h6 41. Bc4 g5 42. hxg5 hxg5 43. Bb5 Rh6 44. Bc6 Rxc6 45. Ke1 c4 46. bxc4 Rxc4 47. Nd2 Rc1+ 0-1

[Event "Rio de Janeiro U18"]
[Site "Rio de Janeiro"]
[Date "1982.01.??"]
[Round "6"]
[White "Bettsak, Abraham"]
[Black "Granda Zuniga, Julio E"]
[Result "0-1"]
[ECO "D15"]
[PlyCount "64"]
[EventDate "1982.01.02"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. c4 c6 4. Nc3 dxc4 5. e3 b5 6. a4 b4 7. Na2 e6 8. Bxc4 Nbd7 9. Bd2 a5 10. 0-0 Nb6 11. Bd3 Qd5 12. b3 Bb7 13. Qc2 c5 14. Rac1 Rc8 15. Be2 cxd4 16. Qd3 dxe3 17. Bxe3 Nbd7 18. Rfd1 Qxd3 19. Rxd3 Bc5 20. Bg5 0-0 21. Rcd1 Bd5 22. Nc1 Ne4 23. Na2 Nxf2 24. Kf1 Nxd1 25. Bxd1 f6 26. Bd2 Ne5 27. Nxe5 fxe5+ 28. Ke1 e4 29. Rg3 Bf2+ 30. Ke2 Bb7 31. Be3 Ba6+ 32. Kd2 Rfd8+ 0-1

[Event "Rio de Janeiro U18"]
[Site "Rio de Janeiro"]
[Date "1982.01.??"]
[Round "11"]
[White "Bettsak, Abraham"]
[Black "Saeed, Saeed Ahmed"]
[Result "0-1"]
[ECO "D32"]
[BlackElo "2325"]
[PlyCount "54"]
[EventDate "1982.01.02"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. c4 d5 4. Nc3 Bb4 5. Bd2 0-0 6. e3 c5 7. Be2 Nc6 8. dxc5 Bxc5 9. cxd5 exd5 10. 0-0 Bf5 11. Rc1 Qe7 12. Na4 Bd6 13. Qb3 Rfd8 14. Bd3 Ne4 15. Qc2 Rac8 16. Qb1 Bg4 17. Bxe4 dxe4 18. Ne1 Be2 19. Nc3 Bxf1 20. Kxf1 Bxh2 21. Qxe4 Rxd2 22. Nf3 Qxe4 23. Nxe4 Rxb2 24. Nxh2 Rxa2 25. Nd6 Rb8 26. Nxb7 Rxb7 27. Rxc6 Rb1+ 0-1

[Event "Rio de Janeiro U18"]
[Site "Rio de Janeiro"]
[Date "1982.01.??"]
[Round "9"]
[White "Bettsak, Abraham"]
[Black "Souza, Ivan Boere"]
[Result "0-1"]
[ECO "D05"]
[PlyCount "62"]
[EventDate "1982.01.02"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. e3 b6 4. Bd3 Bb7 5. Nbd2 d5 6. 0-0 c5 7. c3 Be7 8. Re1 0-0 9. e4 dxe4 10. Nxe4 Nbd7 11. Ne5 Bxe4 12. Bxe4 Nxe4 13. Rxe4 Nxe5 14. Rxe5 Bf6 15. Re4 cxd4 16. cxd4 Qd5 17. Qd3 Rfd8 18. Be3 Rac8 19. b3 e5 20. Rd1 exd4 21. Bd2 Qc5 22. Rde1 h6 23. Qg3 Qh5 24. Qd3 Qc5 25. Qg3 d3 26. Rg4 Qd6 27. Qh3 Re8 28. Kf1 Rxe1+ 29. Kxe1 Qe5+ 30. Be3 Rc1+ 31. Kd2 Qc3# 0-1

[Event "Rio de Janeiro U18"]
[Site "Rio de Janeiro"]
[Date "1982.01.??"]
[Round "1"]
[White "Bettsak, Abraham"]
[Black "Thorsteins, Karl"]
[Result "0-1"]
[ECO "D43"]
[BlackElo "2305"]
[PlyCount "44"]
[EventDate "1982.01.02"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. c4 c6 4. Nc3 e6 5. Bf4 dxc4 6. e3 b5 7. a4 Bb4 8. Qc2 Bb7 9. Nd2 a6 10. axb5 cxb5 11. Nxb5 axb5 12. Rxa8 Bxa8 13. f3 Nd5 14. Bxb8 Nxe3 15. Qc1 Qxb8 16. Ke2 Nf5 17. Kd1 0-0 18. Ke2 Nxd4+ 19. Kf2 Qb6 20. Kg3 Nf5+ 21. Kh3 Qf2 22. g3 Bxd2 0-1

[Event "Rio de Janeiro U18"]
[Site "Rio de Janeiro"]
[Date "1982.01.??"]
[Round "3"]
[White "Bettsak, Abraham"]
[Black "Wells, Ian Duncan"]
[Result "0-1"]
[ECO "E60"]
[PlyCount "92"]
[EventDate "1982.01.02"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 g6 2. c4 Bg7 3. e3 Nf6 4. Nf3 0-0 5. Bd3 d6 6. h3 Nbd7 7. Nc3 e5 8. 0-0 Nh5 9. Qc2 f5 10. dxe5 dxe5 11. e4 f4 12. Rd1 c6 13. c5 Kh8 14. b4 Qe7 15. a3 h6 16. Bb2 g5 17. Ne2 Bf6 18. Bc4 Ng7 19. Qc3 b6 20. cxb6 axb6 21. g4 Re8 22. Nh2 Bb7 23. f3 Nf8 24. Rd2 Rad8 25. Rad1 b5 26. Bb3 Nge6 27. Kg2 Kh7 28. Qc1 Qc7 29. a4 bxa4 30. Bxa4 Ng6 31. Qc4 Ngf8 32. b5 cxb5 33. Qxb5 Nc5 34. Rc2 Nfe6 35. Bb3 Ba6 36. Qb4 Rxd1 37. Bxe6 Rxe6 38. Rxc5 Qb6 39. Ba3 Qxb4 40. Rc7+ Re7 41. Rxe7+ Bxe7 42. Bxb4 Bxb4 43. Nxf4 Rd2+ 44. Kg1 Bc5+ 45. Kh1 Rd1+ 46. Kg2 Rg1# 0-1

[Event "Rio de Janeiro U18"]
[Site "Rio de Janeiro"]
[Date "1982.01.??"]
[Round "5"]
[White "Bettsak, Abraham"]
[Black "Zakic, Srdjan"]
[Result "0-1"]
[ECO "E92"]
[BlackElo "2200"]
[PlyCount "56"]
[EventDate "1982.01.02"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. Nf3 0-0 5. e4 d6 6. Be2 e5 7. d5 a5 8. a3 Bd7 9. Bg5 h6 10. Bh4 a4 11. 0-0 Qe8 12. Ne1 Na6 13. Nd3 g5 14. Bg3 Nxe4 15. Nxe4 f5 16. Nxd6 cxd6 17. f3 Qe7 18. Qc2 e4 19. fxe4 fxe4 20. Nf2 Nc5 21. Rae1 Bf5 22. Bg4 Bd4 23. Kh1 Bxf2 24. Bxf5 Bxe1 25. Bxe1 Qe5 26. Bg3 Rxf5 27. Qe2 Raf8 28. Rxf5 Qxf5 0-1

[Event "Rio de Janeiro U18"]
[Site "Rio de Janeiro"]
[Date "1982.01.??"]
[Round "13"]
[White "Correa, Aron Antunes"]
[Black "Bettsak, Abraham"]
[Result "1-0"]
[ECO "D02"]
[PlyCount "67"]
[EventDate "1982.01.02"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. Nf3 d5 2. g3 Bf5 3. Bg2 Nf6 4. 0-0 c5 5. d4 Nc6 6. c4 e6 7. Nc3 dxc4 8. Qa4 cxd4 9. Nxd4 Nd7 10. Nxc6 bxc6 11. Bxc6 Rc8 12. Rd1 e5 13. Be3 Qc7 14. Bg2 Bc5 15. Nb5 Qb6 16. Nd6+ Qxd6 17. Rxd6 Bxd6 18. Rd1 Be7 19. Bc6 Rd8 20. Bxa7 0-0 21. Bxd7 Bxd7 22. Rxd7 Bf6 23. Rxd8 Rxd8 24. Bb6 Rc8 25. Qd7 Ra8 26. a4 h6 27. a5 e4 28. a6 Bxb2 29. a7 c3 30. Qb7 Rxa7 31. Qc8+ Kh7 32. Bxa7 Kg6 33. Bd4 Ba3 34. Qg4+ 1-0

[Event "Rio de Janeiro U18"]
[Site "Rio de Janeiro"]
[Date "1982.01.??"]
[Round "12"]
[White "Darcyl, Tomas"]
[Black "Bettsak, Abraham"]
[Result "1-0"]
[ECO "C08"]
[PlyCount "115"]
[EventDate "1982.01.02"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 exd5 5. Bb5+ Bd7 6. Qe2+ Qe7 7. Bxd7+ Nxd7 8. dxc5 Nxc5 9. Nb3 Rc8 10. Be3 Na6 11. c3 Nf6 12. Bxa7 Qxe2+ 13. Nxe2 Bd6 14. Bd4 Be7 15. 0-0-0 Nc7 16. Rhe1 0-0 17. Ng3 Bd8 18. Nf5 Nfe8 19. Bc5 g6 20. Ne7+ Bxe7 21. Bxe7 Ng7 22. Bxf8 Kxf8 23. Nd4 Nge8 24. Nc2 Nf6 25. Nb4 Ra8 26. Kb1 Ra5 27. f3 h6 28. Re2 Ng8 29. Nc2 Nf6 30. Nd4 Ra6 31. Rde1 Ng8 32. b3 b5 33. Kb2 Rb6 34. Ra1 Rb8 35. a4 bxa4 36. Rxa4 Rd8 37. Ra7 Rc8 38. Kc2 Ne8 39. Re6 Nef6 40. Rea6 Rb8 41. b4 Ke8 42. Rd6 Rd8 43. Rxd8+ Kxd8 44. Rxf7 Nd7 45. Rg7 Ne7 46. Rh7 h5 47. Rh8+ Kc7 48. Rh7 Kd6 49. Nb5+ Ke6 50. Nc7+ Kd6 51. Rxe7 Kxe7 52. Nxd5+ Kd6 53. c4 Ke5 54. Kc3 g5 55. b5 Kd6 56. Kd4 h4 57. Nc3 Kc7 58. Ne4 1-0

[Event "Rio de Janeiro U18"]
[Site "Rio de Janeiro"]
[Date "1982.01.??"]
[Round "2"]
[White "Dlugy, Maxim"]
[Black "Bettsak, Abraham"]
[Result "1-0"]
[ECO "D36"]
[WhiteElo "2310"]
[PlyCount "75"]
[EventDate "1982.01.02"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 Nbd7 6. cxd5 exd5 7. e3 Bd6 8. Bd3 0-0 9. Qc2 Qc7 10. 0-0 Re8 11. Rab1 g6 12. Rfc1 Qd8 13. b4 b5 14. Ne2 Bb7 15. h4 Be7 16. Ng3 Nf8 17. h5 Ng4 18. Bxe7 Qxe7 19. e4 dxe4 20. Nxe4 Nf6 21. hxg6 hxg6 22. Nc5 Rad8 23. Nxb7 Qxb7 24. Qxc6 Qxc6 25. Rxc6 Ng4 26. Bxb5 Re7 27. Bc4 Rdd7 28. b5 Rb7 29. a4 Rec7 30. Rd1 Nd7 31. Rxg6+ Kf8 32. Rc6 Ke7 33. d5 Kd8 34. d6 Rc8 35. Bxf7 Rbb8 36. Re1 Ndf6 37. Nd4 Kd7 38. Re7+ 1-0

[Event "Rio de Janeiro U18"]
[Site "Rio de Janeiro"]
[Date "1982.01.??"]
[Round "7"]
[White "Kuznecov, Alex"]
[Black "Bettsak, Abraham"]
[Result "1-0"]
[ECO "A30"]
[PlyCount "81"]
[EventDate "1982.01.02"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. c4 c5 2. Nc3 Nf6 3. g3 Nc6 4. Bg2 b6 5. Nf3 Bb7 6. 0-0 e6 7. e4 d6 8. d4 cxd4 9. Nxd4 Nxd4 10. Qxd4 Be7 11. b3 0-0 12. Rd1 Qb8 13. Bb2 Rd8 14. h3 Bc6 15. Qe3 Qb7 16. Kh2 Rd7 17. Re1 Rad8 18. Rad1 Ne8 19. Nd5 Qa8 20. Nxe7+ Rxe7 21. Rd2 e5 22. Red1 Re6 23. h4 Nf6 24. Bh3 Re7 25. f3 Ne8 26. Ba3 Qb8 27. Rd3 b5 28. c5 b4 29. Bb2 Bb5 30. cxd6 Nxd6 31. Rd5 Bc6 32. Rxe5 Rxe5 33. Bxe5 f6 34. Bf4 Kf7 35. Qc5 Qb7 36. Rxd6 Rxd6 37. Qxd6 Qb5 38. Qe6+ Kg6 39. Bf5+ Kh5 40. Qf7+ g6 41. Qxh7# 1-0

[Event "Rio de Janeiro U18"]
[Site "Rio de Janeiro"]
[Date "1982.01.??"]
[Round "4"]
[White "Lutz, Horst Richard"]
[Black "Bettsak, Abraham"]
[Result "1-0"]
[ECO "A06"]
[PlyCount "49"]
[EventDate "1982.01.02"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. Nf3 d5 2. b3 Nf6 3. Bb2 g6 4. e3 c5 5. c4 e6 6. Be2 Bg7 7. 0-0 0-0 8. d4 Nbd7 9. Nc3 cxd4 10. exd4 dxc4 11. bxc4 b6 12. Qd2 Bb7 13. Rfd1 Qc7 14. Ba3 Rfd8 15. Nb5 Qb8 16. Nd6 Ne4 17. Nxe4 Bxe4 18. Qe3 f5 19. Nd2 Bb7 20. Qxe6+ Kh8 21. Nf3 Nf6 22. Ne5 Re8 23. Nf7+ Kg8 24. Nh6+ Kh8 25. Qg8+ 1-0

[Event "Rio de Janeiro U18"]
[Site "Rio de Janeiro"]
[Date "1982.01.??"]
[Round "10"]
[White "Paterson, Carlos Alberto"]
[Black "Bettsak, Abraham"]
[Result "1-0"]
[ECO "C01"]
[WhiteElo "2345"]
[PlyCount "65"]
[EventDate "1982.01.02"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. exd5 exd5 4. Bd3 Bd6 5. Nc3 c6 6. h3 h6 7. Nge2 Qc7 8. Be3 Ne7 9. Qd2 Bf5 10. 0-0-0 Bxd3 11. Qxd3 Nd7 12. Rde1 Kd8 13. Rhf1 b5 14. Kb1 a5 15. Ng3 a4 16. Nce2 b4 17. Nf5 Nxf5 18. Qxf5 f6 19. Nf4 Nf8 20. Bc1 Qb8 21. Qh5 g6 22. Nxg6 Nxg6 23. Qxg6 b3 24. Qxf6+ Kc7 25. cxb3 axb3 26. a3 Ra7 27. Re6 Rf8 28. Qxh6 Kd7 29. Rfe1 Rf7 30. Qg6 Qf8 31. Rxd6+ Qxd6 32. Qxf7+ Kd8 33. Re8# 1-0

[Event "Rio de Janeiro U18"]
[Site "Rio de Janeiro"]
[Date "1982.01.??"]
[Round "15"]
[White "Trindade, Sandro Heleno"]
[Black "Bettsak, Abraham"]
[Result "1-0"]
[ECO "B21"]
[PlyCount "63"]
[EventDate "1982.01.02"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 d5 2. e5 c5 3. f4 Nc6 4. Nc3 a6 5. g3 Nh6 6. d3 f6 7. exf6 exf6 8. Qh5+ Nf7 9. Qxd5 Bd6 10. Ne4 Qe7 11. Be3 0-0 12. Bxc5 Rd8 13. Ne2 Be6 14. Bxd6 Rxd6 15. Qc5 Rd5 16. Qxe7 Nxe7 17. N2c3 Ra5 18. 0-0-0 Nd5 19. Rg1 Rc8 20. Nxd5 Rxd5 21. Re1 Nd8 22. Kb1 Bf7 23. Bh3 Rc6 24. Bg2 Rb5 25. c4 Rh5 26. h3 Re6 27. d4 Ra5 28. Nc3 Rd6 29. d5 Rb6 30. b3 Bg6+ 31. Kb2 Nf7 32. Re8# 1-0

