[Event "HUN-Open"]
[Site "Budapest"]
[Date "1981.09.23"]
[Round "13"]
[White "Petras, Gabor"]
[Black "Kertesz, Istvan"]
[Result "0-1"]
[ECO "B27"]
[PlyCount "56"]
[EventDate "1981.09.08"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "HUN"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 g6 3. Bc4 Bg7 4. c3 e6 5. d4 Qc7 6. Qe2 cxd4 7. 0-0 Nc6 8. cxd4 Nxd4 9. Nxd4 Bxd4 10. Nc3 a6 11. Bb3 b5 12. Be3 Bg7 13. Rac1 Qd8 14. Nd5 exd5 15. exd5 Kf8 16. d6 Bb7 17. Rc7 Bc6 18. Bb6 Rb8 19. Rxc6 Rxb6 20. Rxb6 Qxb6 21. Rc1 Qd8 22. Qf3 Bf6 23. Qb7 Kg7 24. Qxa6 Nh6 25. Qxb5 Re8 26. g3 Re5 27. Qb7 Re2 28. Rc7 Bd4 0-1

[Event "HUN-Open"]
[Site "Budapest"]
[Date "1981.09.21"]
[Round "12"]
[White "Kovacs, Lajos"]
[Black "Petras, Gabor"]
[Result "0-1"]
[ECO "B50"]
[PlyCount "26"]
[EventDate "1981.09.08"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "HUN"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Bc4 Nf6 4. c3 Nxe4 5. Qa4+ Nc6 6. Bxf7+ Kxf7 7. Qxe4 g6 8. d4 Bf5 9. Qf4 cxd4 10. cxd4 e5 11. Qg3 Qb6 12. 0-0 Nxd4 13. Be3 Ne2+ 0-1

[Event "HUN-Open"]
[Site "Budapest"]
[Date "1981.09.20"]
[Round "11"]
[White "Ivan, Zoltan"]
[Black "Petras, Gabor"]
[Result "1-0"]
[ECO "D41"]
[PlyCount "84"]
[EventDate "1981.09.08"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "HUN"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 c5 3. g3 e6 4. Bg2 Be7 5. Nf3 0-0 6. 0-0 d5 7. cxd5 Nxd5 8. Nxd5 exd5 9. d4 b6 10. Be3 Bb7 11. Rc1 Na6 12. Qa4 Re8 13. Rfd1 c4 14. Ne5 Nc7 15. h4 a5 16. Qc2 b5 17. b3 Ba3 18. Rb1 cxb3 19. Rxb3 Bd6 20. Bh3 Ra6 21. Bd7 Re7 22. Bf5 h6 23. Bf4 b4 24. Rf3 Nb5 25. Nxf7 Rxf7 26. Be6 Bxf4 27. Bxf7+ Kxf7 28. Rxf4+ Rf6 29. Rxf6+ Qxf6 30. Rd3 Kg8 31. Qc5 Nc3 32. Rf3 Qd8 33. a3 Ne4 34. Qb5 Nd6 35. Qa4 bxa3 36. Qxa3 Nc4 37. Qc5 a4 38. Qb5 Qa8 39. Qd7 Bc8 40. Qe8+ Kh7 41. h5 Bb7 42. Qg6+ Kh8 1-0

[Event "HUN-Open"]
[Site "Budapest"]
[Date "1981.09.18"]
[Round "9"]
[White "Petras, Gabor"]
[Black "Papp, Bela"]
[Result "1/2-1/2"]
[ECO "C41"]
[PlyCount "111"]
[EventDate "1981.09.08"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "HUN"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. e4 c6 2. d4 d6 3. Nc3 Nd7 4. Nf3 e5 5. Bc4 Be7 6. 0-0 h6 7. a4 a5 8. Be3 g5 9. Qe2 Qc7 10. Bb3 Nf8 11. Rad1 Rh7 12. Nd2 Nf6 13. dxe5 dxe5 14. Nc4 Be6 15. Rd2 Bxc4 16. Qxc4 Ne6 17. Ne2 Nh5 18. Rfd1 Rd8 19. Ng3 Nxg3 20. hxg3 h5 21. Rxd8+ Nxd8 22. Bc5 Ne6 23. Bxe7 Kxe7 24. Qc3 Nd4 25. Qd2 Rg7 26. Bc4 Rg6 27. c3 Ne6 28. Bxe6 fxe6 29. Qe3 Rg8 30. Qc5+ Kf6 31. b4 b6 32. Qd6 Qxd6 33. Rxd6 axb4 34. cxb4 Rc8 35. Rd7 c5 36. bxc5 bxc5 37. f3 c4 38. a5 c3 39. Rd1 c2 40. Rc1 g4 41. a6 Kg5 42. a7 Ra8 43. Rxc2 Rxa7 44. Rc8 Ra1+ 45. Kf2 Ra2+ 46. Kg1 Ra7 47. Kf2 Rg7 48. Rh8 Kg6 49. Re8 Kf6 50. Rh8 Kg5 51. Kf1 Rg6 52. Kf2 Rg7 53. Re8 Kf6 54. Rh8 Rg5 55. Rh7 Kg6 56. Re7 1/2-1/2

[Event "HUN-Open"]
[Site "Budapest"]
[Date "1981.09.16"]
[Round "8"]
[White "Petras, Gabor"]
[Black "Csanadi, Lajos"]
[Result "0-1"]
[ECO "B29"]
[PlyCount "96"]
[EventDate "1981.09.08"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "HUN"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nf6 3. Nc3 d5 4. Bb5+ Bd7 5. Bxd7+ Qxd7 6. exd5 Nxd5 7. 0-0 Nc6 8. Ne4 e5 9. Re1 0-0-0 10. d3 f5 11. Ned2 Qc7 12. Nc4 Bd6 13. Ng5 e4 14. g3 Nd4 15. c3 h6 16. cxd4 hxg5 17. Nxd6+ Rxd6 18. Bxg5 Rg6 19. Rc1 Kb8 20. dxe4 fxe4 21. Qd2 Qd7 22. Rxe4 Qh3 23. f4 c4 24. Rce1 Qd7 25. Qe2 b5 26. Re8+ Qxe8 27. Qxe8+ Rxe8 28. Rxe8+ Kb7 29. h4 b4 30. f5 Rd6 31. Kf2 Ra6 32. Rg8 Rxa2 33. Rxg7+ Kc6 34. Kf3 Rxb2 35. f6 Nxf6 36. Bxf6 c3 37. Rxa7 Kb6 38. Ra1 c2 39. Rc1 b3 40. Bg5 Ra2 41. h5 b2 42. Rxc2 b1Q 43. Rxa2 Qxa2 44. h6 Kc6 45. Kg4 Qe6+ 46. Kh5 Qf7+ 47. Kg4 Kd5 48. Bf4 Ke4 0-1

[Event "HUN-Open"]
[Site "Budapest"]
[Date "1981.09.15"]
[Round "7"]
[White "Tornai, Imre"]
[Black "Petras, Gabor"]
[Result "1-0"]
[ECO "B53"]
[PlyCount "49"]
[EventDate "1981.09.08"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "HUN"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Qxd4 Bd7 5. c4 Nc6 6. Qd3 g6 7. Nc3 Bg7 8. Be2 Nf6 9. 0-0 0-0 10. h3 a6 11. Be3 Qa5 12. a3 Rfc8 13. b4 Qd8 14. Rac1 Na7 15. Rfd1 Be6 16. Bxa7 Rxa7 17. Qe3 Raa8 18. e5 Nd7 19. exd6 exd6 20. Rxd6 Bxc4 21. Bxc4 Rxc4 22. Nd5 Rxc1+ 23. Qxc1 Qe8 24. Qd1 Rc8 25. Rxd7 1-0

[Event "HUN-Open"]
[Site "Budapest"]
[Date "1981.09.14"]
[Round "6"]
[White "Csaba, Arpad"]
[Black "Petras, Gabor"]
[Result "1-0"]
[ECO "E12"]
[PlyCount "65"]
[EventDate "1981.09.08"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "HUN"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. c4 b6 4. a3 Bb7 5. Nc3 Be7 6. e3 0-0 7. Bd3 d5 8. cxd5 Nxd5 9. e4 Nxc3 10. bxc3 c5 11. Be3 Ba6 12. 0-0 Bxd3 13. Qxd3 Nc6 14. Rfd1 Qc7 15. h4 Rfd8 16. Qc2 h6 17. g4 Rac8 18. Kg2 cxd4 19. cxd4 Qd7 20. Qe2 e5 21. Nxe5 Nxe5 22. dxe5 Qe6 23. Rxd8+ Rxd8 24. f4 Bxh4 25. Rh1 Be7 26. g5 Bxa3 27. Rh3 Bc5 28. Bc1 hxg5 29. Qh5 Qa2+ 30. Kh1 Kf8 31. f5 Qf2 32. Qh8+ Ke7 33. Bxg5+ 1-0

[Event "HUN-Open"]
[Site "Budapest"]
[Date "1981.09.13"]
[Round "5"]
[White "Petras, Gabor"]
[Black "Szalanczy, Emil"]
[Result "0-1"]
[ECO "C61"]
[BlackElo "2300"]
[PlyCount "46"]
[EventDate "1981.09.08"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "HUN"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nd4 4. Nxd4 exd4 5. c3 Qg5 6. Bf1 d3 7. Qf3 Bc5 8. Bxd3 Nf6 9. Qg3 Qh6 10. Bc2 Bd6 11. Qe3 Bf4 12. Qe2 d5 13. g3 Bg4 14. Qb5+ c6 15. Qxb7 0-0 16. Bd1 Rae8 17. Bxg4 Nxg4 18. Qxa7 Rxe4+ 19. Kd1 d4 20. f3 Nf2+ 21. Kc2 d3+ 22. Kb3 Rb8+ 23. Ka3 Qd6+ 0-1

[Event "HUN-Open"]
[Site "Budapest"]
[Date "1981.09.11"]
[Round "4"]
[White "Berczy, Robert"]
[Black "Petras, Gabor"]
[Result "0-1"]
[ECO "E14"]
[PlyCount "72"]
[EventDate "1981.09.08"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "HUN"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. c4 e6 2. Nf3 Nf6 3. b3 b6 4. Bb2 Bb7 5. Nc3 Be7 6. e3 0-0 7. Be2 d5 8. 0-0 c5 9. cxd5 exd5 10. d4 Nbd7 11. Rc1 Rc8 12. Nh4 g6 13. Nf3 Ne4 14. dxc5 Ndxc5 15. Nb5 Bf6 16. Nbd4 Bg7 17. b4 Nd7 18. Qa4 Ra8 19. Rc2 a5 20. Nc6 axb4 21. Nxd8 Rxa4 22. Bxg7 Rxd8 23. Bd4 Ndc5 24. Ne5 Rda8 25. Nd3 Ba6 26. Nxc5 bxc5 27. Bxa6 cxd4 28. Bb7 d3 29. Rb2 R8a5 30. f3 Nc3 31. Rd2 Rxa2 32. Rxd3 Rc2 33. e4 Raa2 34. Re1 Rxg2+ 35. Kh1 Rxh2+ 36. Kg1 Rag2+ 0-1

[Event "HUN-Open"]
[Site "Budapest"]
[Date "1981.09.10"]
[Round "3"]
[White "Petras, Gabor"]
[Black "Tokaji, Nagy Gyorgy"]
[Result "0-1"]
[ECO "B42"]
[PlyCount "84"]
[EventDate "1981.09.08"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "HUN"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 Nf6 6. 0-0 Qc7 7. c4 Be7 8. b3 0-0 9. Bb2 b6 10. Qe2 d6 11. Nc3 Bb7 12. Rac1 Nbd7 13. Rfd1 Rfe8 14. Bb1 Rad8 15. Qe3 Qc5 16. Qh3 Bf8 17. Nf3 h6 18. a3 Qc8 19. Nd4 Nc5 20. b4 Ncxe4 21. Na4 Ng5 22. Qe3 e5 23. Nf3 Nxf3+ 24. gxf3 Qh3 25. Be4 Nxe4 26. fxe4 Qg4+ 27. Kf1 Bxe4 28. Nxb6 Be7 29. Qg3 Qf5 30. Nd5 Bg5 31. Ne3 Qe6 32. a4 f5 33. Qh3 Qf7 34. b5 f4 35. Nd5 axb5 36. axb5 Bf5 37. Qb3 Qh5 38. c5 Kh7 39. c6 Qxh2 40. c7 Rc8 41. b6 e4 42. Nxf4 Bxf4 0-1

[Event "HUN-Open"]
[Site "Budapest"]
[Date "1981.09.09"]
[Round "2"]
[White "Siklosi, Zoltan"]
[Black "Petras, Gabor"]
[Result "1-0"]
[ECO "B53"]
[PlyCount "49"]
[EventDate "1981.09.08"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "HUN"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Qxd4 Bd7 5. Bg5 Nc6 6. Qd2 Rc8 7. Nc3 g6 8. 0-0-0 Bg7 9. Kb1 Qa5 10. Bc4 Nb4 11. Bb3 Be6 12. e5 Bxb3 13. axb3 Nh6 14. Bxe7 Rc6 15. Bxd6 Ra6 16. Na4 Nc6 17. Qd3 b5 18. Ba3 b4 19. Qd7+ Kf8 20. Qc8+ Ke7 21. Rd7+ Ke6 22. Rd6+ Ke7 23. Qb7+ Kf8 24. Rxc6 Rxc6 25. Bxb4+ 1-0

[Event "HUN-Open"]
[Site "Budapest"]
[Date "1981.09.08"]
[Round "1"]
[White "Petras, Gabor"]
[Black "Pasztor, Ferenc"]
[Result "0-1"]
[ECO "B48"]
[PlyCount "90"]
[EventDate "1981.09.08"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "HUN"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Be3 a6 7. Be2 Nf6 8. a3 Be7 9. 0-0 0-0 10. f4 d6 11. Qe1 Bd7 12. Qg3 Rac8 13. f5 Kh8 14. Kh1 Ne5 15. Qh3 Nc4 16. Bxc4 Qxc4 17. Rf4 e5 18. Rh4 exd4 19. Bg5 Kg8 20. Bxf6 Bxf6 21. Rxh7 g6 22. Nd5 Qxd5 23. exd5 Bxf5 24. Qh6 Rxc2 25. h4 d3 26. h5 Re8 27. Rxf7 Kxf7 28. Qh7+ Bg7 29. Rf1 Re1 30. hxg6+ Kf8 31. Rxe1 d2 32. Qh4 dxe1Q+ 33. Qxe1 Rxb2 34. Qh4 Rb1+ 35. Kh2 Be5+ 36. g3 Rb2+ 37. Kg1 Bxg6 38. Qd8+ Kg7 39. Qd7+ Kf6 40. Qd8+ Kg7 41. Qd7+ Kf8 42. Qc8+ Be8 43. g4 Ke7 44. g5 Bd7 45. Qg8 Bf5 0-1

