[Event "HUN-Open"]
[Site "Budapest"]
[Date "1981.09.23"]
[Round "13"]
[White "Vegh, Endre"]
[Black "Ondi, Gyula"]
[Result "1-0"]
[ECO "E92"]
[BlackElo "2260"]
[PlyCount "80"]
[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 c5 2. d5 e5 3. c4 d6 4. Nc3 g6 5. e4 Bg7 6. Nf3 Ne7 7. Be2 0-0 8. 0-0 Nd7 9. a3 h6 10. Ne1 f5 11. f3 Nf6 12. Nd3 f4 13. g4 g5 14. b4 b6 15. h3 h5 16. Bd2 Ng6 17. Rb1 Rf7 18. Rf2 Bf8 19. Rh2 Nh4 20. Be1 hxg4 21. hxg4 Nxg4 22. fxg4 f3 23. Bf1 Bxg4 24. Nf2 Bd7 25. Nh1 Qf6 26. Bg3 Ng6 27. bxc5 bxc5 28. Rb7 g4 29. Rh5 Qd8 30. Qb1 Nf4 31. Bxf4 Rxf4 32. Ng3 Be8 33. Rh2 Qg5 34. Rbh7 Rf7 35. Rh8+ Kg7 36. Nf5+ Rxf5 37. R2h7+ Kf6 38. Rxf8+ Kg6 39. Rg8+ Kxh7 40. Rxg5 Rxg5 1-0

[Event "HUN-Open"]
[Site "Budapest"]
[Date "1981.09.21"]
[Round "12"]
[White "Ondi, Gyula"]
[Black "Perenyi, Bela"]
[Result "1-0"]
[ECO "A36"]
[WhiteElo "2260"]
[PlyCount "113"]
[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 g6 2. Nc3 c5 3. g3 Nc6 4. Bg2 Bg7 5. d3 e6 6. e4 Nge7 7. Be3 d6 8. Qd2 Nd4 9. Nge2 0-0 10. 0-0 Nec6 11. Bh6 Ne5 12. Nxd4 Bxh6 13. Qxh6 cxd4 14. Nb5 Qb6 15. Qd2 Bd7 16. a4 a5 17. h3 Bxb5 18. axb5 Nd7 19. f4 Nc5 20. f5 Kh8 21. Qh6 Nd7 22. Rf4 Qd8 23. Raf1 g5 24. R4f2 exf5 25. Qxd6 f6 26. exf5 Ne5 27. Qxd8 Raxd8 28. Bxb7 Nxd3 29. Rd2 Nc5 30. Bd5 d3 31. Rfd1 Rfe8 32. Kf2 Re5 33. Rxd3 Nxd3+ 34. Rxd3 Rxf5+ 35. Ke3 Kg7 36. Kd4 Rf2 37. b3 f5 38. b6 f4 39. gxf4 gxf4 40. Kc5 Re2 41. Rf3 Kh6 42. b7 Kg5 43. Kb6 Re7 44. c5 Ree8 45. Bc4 Kf5 46. c6 Rd6 47. Kc7 Rdd8 48. Bd3+ Ke5 49. Bxh7 Rh8 50. Bd3 Rdf8 51. Bc4 Ke4 52. Rf1 f3 53. Be6 f2 54. Bc8 Kf3 55. b8Q Kg2 56. Rxf2+ Rxf2 57. Qb5 1-0

[Event "HUN-Open"]
[Site "Budapest"]
[Date "1981.09.20"]
[Round "11"]
[White "Czeripp, Gyorgy"]
[Black "Ondi, Gyula"]
[Result "0-1"]
[ECO "B59"]
[WhiteElo "2250"]
[BlackElo "2260"]
[PlyCount "48"]
[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. Nxd4 Nf6 5. Nc3 Nc6 6. Be2 e5 7. Nb3 Be7 8. 0-0 0-0 9. Be3 Be6 10. f4 d5 11. fxe5 Nxe4 12. Nxe4 dxe4 13. Qxd8 Rfxd8 14. Bf4 a5 15. c3 a4 16. Nd2 Nxe5 17. Nxe4 Nd3 18. Be3 Nxb2 19. Nc5 Bc4 20. Rfb1 a3 21. Bxc4 Nxc4 22. Rxb7 Bf6 23. Bd4 Rxd4 24. Rb4 Rh4 0-1

[Event "HUN-Open"]
[Site "Budapest"]
[Date "1981.09.19"]
[Round "10"]
[White "Ondi, Gyula"]
[Black "Nagy, Ervin"]
[Result "1/2-1/2"]
[ECO "B85"]
[WhiteElo "2260"]
[PlyCount "22"]
[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 Nf6 5. Nc3 d6 6. Be2 Be7 7. 0-0 0-0 8. Be3 Nc6 9. Kh1 a6 10. f4 Bd7 11. Bf3 Qc7 1/2-1/2

[Event "HUN-Open"]
[Site "Budapest"]
[Date "1981.09.18"]
[Round "9"]
[White "Rigo, Janos"]
[Black "Ondi, Gyula"]
[Result "1-0"]
[ECO "B56"]
[WhiteElo "2340"]
[BlackElo "2260"]
[PlyCount "69"]
[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 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be3 e5 7. Nf3 h6 8. Bc4 Be7 9. a4 0-0 10. 0-0 Be6 11. Nd2 d5 12. exd5 Nxd5 13. Nxd5 Bxd5 14. c3 Kh8 15. Qh5 Bxc4 16. Nxc4 Qd5 17. b3 Qe6 18. Rfe1 Qf6 19. Re2 Rfe8 20. Rae1 Rad8 21. Bc1 Bf8 22. Re3 g6 23. Qe2 Re6 24. b4 Bg7 25. b5 Nb8 26. h3 Rde8 27. Ba3 g5 28. Rd1 Rd8 29. Rf3 Rxd1+ 30. Qxd1 Qg6 31. Qd8+ Kh7 32. Qxb8 g4 33. hxg4 Qxg4 34. Ne3 Qh5 35. Qxb7 1-0

[Event "HUN-Open"]
[Site "Budapest"]
[Date "1981.09.16"]
[Round "8"]
[White "Ondi, Gyula"]
[Black "Szeles, Karoly"]
[Result "1/2-1/2"]
[ECO "A01"]
[WhiteElo "2260"]
[PlyCount "80"]
[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. b3 e5 2. Bb2 Nc6 3. e3 Nf6 4. Bb5 d6 5. Ne2 g6 6. f4 Bg7 7. fxe5 Ng4 8. h3 Ngxe5 9. d4 Qh4+ 10. Kd2 a6 11. Bxc6+ Nxc6 12. Qf1 Bd7 13. Qf4 Qxf4 14. Nxf4 0-0-0 15. Nc3 Rde8 16. Rae1 Ne7 17. Rhf1 f5 18. Nd1 Ng8 19. c4 Nf6 20. Nc3 c6 21. d5 c5 22. a4 Re7 23. Ba1 Rhe8 24. Re2 Bh6 25. Rf3 b6 26. Kd3 Ne4 27. h4 Kb7 28. Nd1 b5 29. axb5 axb5 30. Ra2 Ra8 31. Rxa8 Kxa8 32. Rf1 bxc4+ 33. bxc4 Bc8 34. Bc3 Bd7 35. Bb2 Kb8 36. Nc3 Nxc3 37. Bxc3 Bc8 38. Rb1+ Rb7 39. Rxb7+ Kxb7 40. Ba5 Bxf4 1/2-1/2

[Event "HUN-Open"]
[Site "Budapest"]
[Date "1981.09.15"]
[Round "7"]
[White "Szollosi, Laszlo Jr"]
[Black "Ondi, Gyula"]
[Result "1-0"]
[ECO "A43"]
[BlackElo "2260"]
[PlyCount "73"]
[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. Nf3 c5 2. d4 cxd4 3. Nxd4 d5 4. g3 e5 5. Nf3 Nc6 6. Bg2 Be7 7. 0-0 Be6 8. c4 dxc4 9. Qa4 Qc7 10. Nxe5 Qxe5 11. Bxc6+ Kf8 12. Bxb7 Rd8 13. Nc3 g5 14. Be3 h5 15. Rfd1 h4 16. Rxd8+ Bxd8 17. Qxa7 hxg3 18. Qc5+ Qxc5 19. Bxc5+ Kg7 20. Bd4+ Bf6 21. Bxf6+ Nxf6 22. hxg3 Rb8 23. Bf3 Rxb2 24. Rc1 g4 25. Bg2 Nd7 26. Kf1 Nc5 27. Ke1 f5 28. Kd1 Rb6 29. Kc2 Bf7 30. Rb1 Rh6 31. Rh1 Ra6 32. Kd2 Ra3 33. Bc6 Na6 34. Rb1 Kf6 35. Rb6 Ke5 36. Rb7 Be6 37. Ra7 1-0

[Event "HUN-Open"]
[Site "Budapest"]
[Date "1981.09.14"]
[Round "6"]
[White "Ondi, Gyula"]
[Black "Honfi, Karoly"]
[Result "0-1"]
[ECO "B43"]
[WhiteElo "2260"]
[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 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Qc7 6. g3 Nf6 7. Bg2 Bb4 8. Bd2 Nc6 9. Nde2 0-0 10. 0-0 Be7 11. Nf4 d6 12. a4 Rb8 13. Qe2 Bd7 14. b3 Rfc8 15. Rfc1 Qd8 16. Nd1 e5 17. Nh3 Nd4 18. Qd3 d5 19. f3 dxe4 20. fxe4 Bg4 21. Nc3 Nxb3 22. Qxd8+ Rxd8 23. cxb3 Rxd2 24. Ng5 Bc5+ 25. Kh1 Be3 26. Nf3 Bxf3 27. Bxf3 Rd3 28. Be2 Bxc1 0-1

[Event "HUN-Open"]
[Site "Budapest"]
[Date "1981.09.13"]
[Round "5"]
[White "Zsinka, Laszlo"]
[Black "Ondi, Gyula"]
[Result "1-0"]
[ECO "E21"]
[WhiteElo "2300"]
[BlackElo "2260"]
[PlyCount "75"]
[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. c4 e6 3. Nc3 Bb4 4. Nf3 0-0 5. Bg5 h6 6. Bh4 c5 7. e3 d6 8. Be2 g5 9. Bg3 Ne4 10. Qc2 f5 11. 0-0 Bxc3 12. bxc3 Qf6 13. Bd3 Nxg3 14. fxg3 e5 15. Nd2 exd4 16. cxd4 Nc6 17. d5 Nb4 18. Qb3 Qe5 19. Rae1 Nxd3 20. Qxd3 Bd7 21. e4 Rae8 22. Nf3 Qg7 23. Nd2 Re5 24. exf5 Bxf5 25. Qc3 Rxe1 26. Qxg7+ Kxg7 27. Rxe1 Kf7 28. h4 Re8 29. Rf1 Kg6 30. h5+ Kxh5 31. Rxf5 Kg4 32. Rf6 Re2 33. Nf1 Rxa2 34. Kh2 Kh5 35. Ne3 g4 36. Rxd6 Re2 37. Re6 a5 38. d6 1-0

[Event "HUN-Open"]
[Site "Budapest"]
[Date "1981.09.11"]
[Round "4"]
[White "Ondi, Gyula"]
[Black "Eperjesi, Laszlo"]
[Result "1/2-1/2"]
[ECO "B17"]
[WhiteElo "2260"]
[BlackElo "2355"]
[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 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nd7 5. Nf3 Ngf6 6. Ng3 e6 7. Bd3 c5 8. c3 cxd4 9. Nxd4 Bc5 10. 0-0 0-0 11. Re1 Qb6 12. Nh5 Re8 13. a4 a5 14. Bg5 e5 15. Nxf6+ Nxf6 16. Qc2 h6 17. Bxf6 Qxf6 18. Nb5 Re7 19. Bh7+ Kh8 20. Be4 Bg4 21. h3 Be6 22. Rad1 Qg5 23. Kh1 Rf8 24. Nd6 Qh4 25. Bf5 Rd7 26. Bxe6 Rxd6 27. Rxd6 Bxd6 28. Ba2 f5 1/2-1/2

[Event "HUN-Open"]
[Site "Budapest"]
[Date "1981.09.10"]
[Round "3"]
[White "Magyar, Otto"]
[Black "Ondi, Gyula"]
[Result "0-1"]
[ECO "B20"]
[BlackElo "2260"]
[PlyCount "78"]
[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. c4 Nc6 3. Ne2 e5 4. Nbc3 d6 5. d3 Nd4 6. Nxd4 cxd4 7. Nd5 f5 8. Be2 fxe4 9. dxe4 Nf6 10. Nxf6+ Qxf6 11. 0-0 g5 12. Bh5+ Kd8 13. Bd2 Be7 14. h3 Be6 15. Rc1 Kc7 16. b4 Rac8 17. c5 Kb8 18. Qa4 dxc5 19. bxc5 Bxc5 20. Qb5 Qe7 21. Rb1 h6 22. Bb4 Bxb4 23. Rxb4 Rc5 24. Qa4 Rhc8 25. Rfb1 Rc1+ 26. Kh2 Rxb1 27. Rxb1 Bd7 28. Qa6 Bc6 29. Bg4 Ka8 30. Qa5 Rd8 31. Bf3 Qd6 32. Rd1 Rh8 33. Bh5 Bxe4 34. Re1 Bd5 35. Kg1 e4 36. Bg6 d3 37. f3 exf3 38. Bxd3 Qg3 39. Qd2 f2+ 0-1

[Event "HUN-Open"]
[Site "Budapest"]
[Date "1981.09.09"]
[Round "2"]
[White "Ondi, Gyula"]
[Black "Schrancz, Istvan"]
[Result "1-0"]
[ECO "B26"]
[WhiteElo "2260"]
[BlackElo "2315"]
[PlyCount "161"]
[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. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. Be3 e5 7. Qd2 Nge7 8. f4 0-0 9. Nf3 Nd4 10. h3 Rb8 11. 0-0 f5 12. Kh2 Nxf3+ 13. Rxf3 b6 14. Raf1 Be6 15. fxe5 dxe5 16. Bh6 Qd7 17. Bxg7 Kxg7 18. Qe3 Qd4 19. Qg5 Rbe8 20. exf5 Nxf5 21. g4 h6 22. Qd2 e4 23. Nxe4 Bd5 24. c3 Qe5+ 25. Kg1 Bxe4 26. dxe4 Ne7 27. Rxf8 Rxf8 28. Rxf8 Kxf8 29. Qxh6+ Kf7 30. Qd2 Ke6 31. Qf2 g5 32. h4 gxh4 33. Qxh4 Qf4 34. Qh3 Ng6 35. g5+ Ke5 36. Qh2 Qxh2+ 37. Kxh2 Kf4 38. Bf1 Ne5 39. Kh3 Kxg5 40. Kg3 Ng6 41. Kf3 Kf6 42. Ke3 Ke5 43. Kd3 Nf4+ 44. Kc4 Kxe4 45. a4 Ke5 46. Kb5 Kd6 47. Ka6 Kc7 48. Kxa7 Nd5 49. Ka6 Ne3 50. Be2 Nf5 51. Ka7 Nd6 52. Bf1 Kc6 53. Kb8 c4 54. Ka7 Kc5 55. Be2 Nc8+ 56. Ka6 Nd6 57. Bf1 Kc6 58. Bg2+ Kc5 59. Bf3 Nf5 60. Bg4 Ne3 61. Be2 Nd5 62. Kb7 Ne3 63. Bh5 Nd5 64. Be2 Ne3 65. Bh5 Nf5 66. Kc7 Ne3 67. Bf3 Nf5 68. Kb7 Ne3 69. Be2 Nd5 70. Bxc4 Kxc4 71. Kc6 Ne3 72. Kxb6 Kd5 73. b4 Kd6 74. a5 Nd5+ 75. Kb7 Nxc3 76. a6 Nb5 77. a7 Nxa7 78. Kxa7 Kc6 79. Ka6 Kc7 80. b5 Kb8 81. Kb6 1-0

[Event "ECI op U20 2nd"]
[Site "Eeklo"]
[Date "1975.08.09"]
[Round "9"]
[White "Ondi, Gyula"]
[Black "Cardon, Marc"]
[Result "1-0"]
[ECO "B97"]
[PlyCount "93"]
[EventDate "1975.08.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BEL"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Qb6 8. Nb3 Nbd7 9. Qf3 Be7 10. 0-0-0 Qc7 11. Bd3 b5 12. Rhe1 Bb7 13. Bxf6 Nxf6 14. g4 Nd7 15. Qg3 b4 16. Ne2 Nc5 17. Nxc5 Qxc5 18. Kb1 a5 19. Rc1 0-0 20. g5 d5 21. e5 g6 22. Ng1 a4 23. c3 b3 24. a3 Ba6 25. Bxa6 Rxa6 26. Nh3 Qc4 27. Nf2 Rd8 28. h4 Kg7 29. h5 Rh8 30. h6+ Kf8 31. Red1 Bc5 32. Ng4 Ra8 33. Rd2 Rd8 34. Nf6 Ke7 35. Rcd1 Ba7 36. Qf3 Bb6 37. Rd3 Bc5 38. Kc1 Bb6 39. Kd2 Bc5 40. Ke1 Bb6 41. Qf1 Ba7 42. Rf3 Qxf1+ 43. Kxf1 Bc5 44. Rfd3 Bb6 45. Ke2 Bg1 46. Rc1 Ba7 47. c4 1-0

[Event "ECI op U20 2nd"]
[Site "Eeklo"]
[Date "1975.08.08"]
[Round "8"]
[White "Krijgelmans, Johan"]
[Black "Ondi, Gyula"]
[Result "1-0"]
[ECO "A44"]
[PlyCount "99"]
[EventDate "1975.08.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BEL"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. d4 c5 2. d5 e5 3. c4 d6 4. e4 Be7 5. Nc3 Bg5 6. g4 Bxc1 7. Rxc1 a6 8. h3 Ne7 9. Bd3 Ng6 10. Nge2 Nh4 11. Ng3 Ng2+ 12. Kd2 Qg5+ 13. Kc2 g6 14. Kb1 Bd7 15. Qf1 Nf4 16. h4 Qd8 17. Bc2 Qa5 18. h5 g5 19. Nf5 Bxf5 20. exf5 f6 21. Bd1 Ke7 22. Ba4 h6 23. Qd1 Rc8 24. Re1 Rc7 25. Re3 Ra7 26. Qc2 b6 27. Re4 Rab7 28. Bc6 b5 29. Rxf4 gxf4 30. g5 hxg5 31. h6 Rb6 32. h7 Rc8 33. Qe2 b4 34. Ne4 b3 35. a3 Rbxc6 36. dxc6 Nxc6 37. Qh5 Qd8 38. Nxf6 Qh8 39. Nd5+ Kd8 40. Qxg5+ Kd7 41. Nb6+ Kc7 42. Nxc8 Qxh7 43. Qg6 Qxg6 44. fxg6 Kxc8 45. g7 Ne7 46. Rh1 Kd7 47. Rh8 e4 48. g8Q Nxg8 49. Rxg8 Ke6 50. Kc1 1-0

[Event "ECI op U20 2nd"]
[Site "Eeklo"]
[Date "1975.08.07"]
[Round "7"]
[White "Upton, Timothy J"]
[Black "Ondi, Gyula"]
[Result "0-1"]
[ECO "B33"]
[PlyCount "90"]
[EventDate "1975.08.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BEL"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 Qb6 7. Nb3 a6 8. Be3 Qc7 9. 0-0 e6 10. a4 b6 11. Qd2 Be7 12. f4 0-0 13. Bf3 Rb8 14. Qf2 Na5 15. Nxa5 bxa5 16. Rab1 Rb4 17. Qe2 Bb7 18. Bd2 Bc6 19. b3 Rd8 20. Na2 Rxe4 21. Bxe4 Bxe4 22. Bc3 d5 23. Bd4 Rc8 24. Rf2 Bf5 25. Qxa6 Ne4 26. Be5 Qc5 27. Bd4 Qxd4 28. Qxc8+ Bf8 29. Rbf1 Nxf2 30. Rxf2 Qa1+ 31. Rf1 Qxa2 32. Qc3 Qa3 33. Qxa5 Bxc2 34. b4 Bxa4 35. Rb1 Qe3+ 36. Kh1 Qd3 37. Rc1 Bb5 38. h3 g6 39. Qd8 Kg7 40. Rc8 Qf1+ 41. Kh2 Qxf4+ 42. g3 Qd2+ 43. Kh1 Bxb4 44. Qg8+ Kh6 45. g4 Qe1+ 0-1

[Event "ECI op U20 2nd"]
[Site "Eeklo"]
[Date "1975.08.06"]
[Round "6"]
[White "Ekstroem, Roland"]
[Black "Ondi, Gyula"]
[Result "1/2-1/2"]
[ECO "B10"]
[PlyCount "159"]
[EventDate "1975.08.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BEL"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 c6 2. Ne2 d5 3. e5 c5 4. g3 Nc6 5. f4 Bg4 6. Bg2 Nd4 7. Nbc3 e6 8. 0-0 Ne7 9. h3 Bxe2 10. Nxe2 Nxe2+ 11. Qxe2 Qb6 12. Kh2 h5 13. c3 Nf5 14. Qf3 Be7 15. d3 0-0-0 16. a4 Rdg8 17. a5 Qc6 18. h4 c4 19. dxc4 Qxc4 20. Bh3 g6 21. Bxf5 gxf5 22. Be3 a6 23. Bd4 Rg4 24. Qf2 Rhg8 25. Rg1 Kd7 26. Kh3 Qd3 27. Be3 Qb5 28. Qd2 Qc4 29. b3 Qe4 30. Qf2 Rc8 31. Bd4 Qd3 32. Kh2 Ke8 33. Rad1 Qb5 34. b4 Kf8 35. Kh3 Kg7 36. Kh2 Kh7 37. Kh3 Kg8 38. Qf3 Qc6 39. Rc1 Qd7 40. Bf2 Kh7 41. Bd4 Rc4 42. Rcd1 Bd8 43. Qe3 Rc8 44. Qf3 Bc7 45. c4 Bd8 46. Bc5 Bxa5 47. cxd5 Qb5 48. dxe6 fxe6 49. bxa5 Rxc5 50. Rb1 Qxa5 51. Rxb7+ Rc7 52. Rgb1 Kh6 53. Rxc7 Qxc7 54. Rb7 Qc4 55. Rb8 a5 56. Rh8+ Kg6 57. Qa8 Qf1+ 58. Kh2 Qf2+ 59. Qg2 Qe3 60. Rf8 Qb3 61. Rf6+ Kh7 62. Rf7+ Rg7 63. Rxg7+ Kxg7 64. Qc6 Qa2+ 65. Kh3 Qd5 66. Qc7+ Kf8 67. Qc8+ Kf7 68. Qc7+ Kg6 69. Kh2 Qd2+ 70. Kh3 Qd1 71. Qc6 Qd5 72. Qe8+ Kg7 73. Qe7+ Kg8 74. Kh2 Qd2+ 75. Kh3 Qd5 76. Qe8+ Kg7 77. Kh2 Qd2+ 78. Kh3 Qd5 79. Qe7+ Kg8 80. Kh2 1/2-1/2

[Event "ECI op U20 2nd"]
[Site "Eeklo"]
[Date "1975.08.05"]
[Round "5"]
[White "Ondi, Gyula"]
[Black "Schubert, Christian"]
[Result "1-0"]
[ECO "B79"]
[PlyCount "76"]
[EventDate "1975.08.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BEL"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Bc4 Bg7 7. Be3 0-0 8. f3 Nc6 9. Qd2 Bd7 10. h4 Qa5 11. 0-0-0 Ne5 12. Bb3 Rfc8 13. g4 Nc4 14. Bxc4 Rxc4 15. h5 Rac8 16. Kb1 Rxc3 17. bxc3 Bxg4 18. h6 Bh8 19. Nb3 Qxc3 20. fxg4 Qc6 21. Qc1 Nxe4 22. Bd4 Nc3+ 23. Bxc3 Qxc3 24. Rd3 Qc6 25. Re1 e6 26. Re2 Qc4 27. Qg1 b6 28. Qg3 Be5 29. Qg2 a5 30. Rxe5 dxe5 31. Qd2 Rf8 32. Rd8 Qb4 33. Qxb4 axb4 34. Rd6 Rb8 35. Nd2 Kf8 36. Rd7 Ke8 37. Ra7 Rd8 38. Ne4 Rd4 1-0

[Event "ECI op U20 2nd"]
[Site "Eeklo"]
[Date "1975.08.04"]
[Round "4"]
[White "Van der Wiel, John"]
[Black "Ondi, Gyula"]
[Result "1-0"]
[ECO "B01"]
[PlyCount "79"]
[EventDate "1975.08.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BEL"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Nf6 3. d4 Nxd5 4. c4 Nf6 5. h3 Bf5 6. Nc3 e6 7. Nf3 Nc6 8. a3 Be7 9. Be3 0-0 10. Bd3 Bxd3 11. Qxd3 e5 12. d5 Re8 13. Ke2 Bf8 14. dxc6 Qxd3+ 15. Kxd3 e4+ 16. Nxe4 Nxe4 17. cxb7 Rab8 18. b4 Rxb7 19. c5 a5 20. Kc4 Reb8 21. Nd2 Nf6 22. c6 Rb5 23. Ba7 axb4 24. a4 R5b6 25. Bxb8 Rxb8 26. a5 Ne8 27. a6 Nd6+ 28. Kb3 Nb5 29. a7 Ra8 30. Ra6 f5 31. Kc4 Nd6+ 32. Kd5 Kf7 33. Nc4 Ne4 34. Ne5+ Ke8 35. Nd7 Be7 36. f3 Nd2 37. Rd1 Bg5 38. Ra2 Nb3 39. Rb1 Nc1 40. Rxb4 1-0

[Event "ECI op U20 2nd"]
[Site "Eeklo"]
[Date "1975.08.03"]
[Round "3"]
[White "Ondi, Gyula"]
[Black "Triller, Rudolf"]
[Result "1-0"]
[ECO "B88"]
[PlyCount "95"]
[EventDate "1975.08.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BEL"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bc4 e6 7. Bb3 Be7 8. Be3 0-0 9. Qe2 Bd7 10. Rg1 Nxd4 11. Bxd4 e5 12. Be3 b5 13. f3 a5 14. Nd5 Nxd5 15. Bxd5 Rc8 16. 0-0-0 Qc7 17. Kb1 Be6 18. g4 Bxd5 19. Rxd5 b4 20. Rc1 Rb8 21. g5 a4 22. h4 a3 23. c4 bxc3 24. b3 Rfc8 25. Rd3 Qa5 26. Qc2 d5 27. exd5 Bb4 28. d6 Rd8 29. d7 Rb7 30. Rcd1 Qb5 31. Rd5 Qc6 32. Qe4 Rc7 33. Kc2 Qa6 34. R1d3 Qb7 35. Qxe5 Bf8 36. Qd4 g6 37. Bf4 Bg7 38. Be5 Rcxd7 39. Rxd7 Rxd7 40. Qxd7 Qxd7 41. Rxd7 Bxe5 42. Ra7 Bg3 43. Ra4 Be1 44. Re4 Bd2 45. Re2 f6 46. gxf6 h6 47. Re7 g5 48. h5 1-0

[Event "ECI op U20 2nd"]
[Site "Eeklo"]
[Date "1975.08.02"]
[Round "2"]
[White "Luminet, Denis"]
[Black "Ondi, Gyula"]
[Result "1-0"]
[ECO "B21"]
[PlyCount "113"]
[EventDate "1975.08.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BEL"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. d4 c5 2. e4 cxd4 3. Nf3 a6 4. c3 dxc3 5. Nxc3 Nc6 6. Bc4 d6 7. 0-0 Nf6 8. Bg5 h6 9. Bxf6 gxf6 10. Re1 Rg8 11. Nh4 Ne5 12. Bb3 e6 13. Qh5 Rg5 14. Qe2 Rg4 15. g3 Qb6 16. Nf5 Bd7 17. Rac1 Bc6 18. h3 Rg6 19. Kh2 Nd3 20. Nd5 Bxd5 21. exd5 Nxc1 22. Rxc1 e5 23. Kg2 Be7 24. Qh5 Qb4 25. Rc7 Bf8 26. Nh4 Qa5 27. Rxf7 Rg5 28. Rxf8+ Kxf8 29. Qxh6+ Kf7 30. Qh7+ Rg7 31. Qh5+ Kg8 32. Nf5 Qc7 33. Nxg7 Qxg7 34. Bc2 Kf8 35. Qf5 Re8 36. h4 Qf7 37. Be4 Ke7 38. Bf3 Kd8 39. Bg4 Qxd5+ 40. Kh2 Qc6 41. Qxf6+ Kc7 42. Qf7+ Kd8 43. Qf6+ Re7 44. h5 d5 45. Qg5 Qc5 46. Kg2 Kc7 47. h6 d4 48. Bf5 Qd5+ 49. f3 Qd8 50. g4 Qf8 51. h7 Rg7 52. Qh5 Qh8 53. Be4 Rd7 54. Qg6 Kb8 55. Qg8+ Rd8 56. Qxh8 Rxh8 57. g5 1-0

[Event "ECI op U20 2nd"]
[Site "Eeklo"]
[Date "1975.08.01"]
[Round "1"]
[White "Ondi, Gyula"]
[Black "Deleyn, Gunter"]
[Result "1/2-1/2"]
[ECO "C18"]
[PlyCount "183"]
[EventDate "1975.08.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BEL"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 Ne7 7. f4 Nbc6 8. Bd3 Bd7 9. Nf3 Qa5 10. Bd2 c4 11. Be2 0-0-0 12. Qb1 Rdg8 13. a4 f5 14. Qb5 Kb8 15. Kf2 Qc7 16. Qc5 h6 17. Rhb1 Nc8 18. a5 Nd8 19. Qa3 Bc6 20. h4 g6 21. Bc1 Nf7 22. Ra2 Rh7 23. Qc5 Rhg7 24. Bf1 a6 25. Rab2 Na7 26. Rb6 Nb5 27. Qb4 Qd8 28. Qc5 Qc7 29. Bd2 Nd8 30. Be2 Bd7 31. Ke3 Qxc5 32. dxc5 Nc6 33. Nd4 Ncxd4 34. cxd4 g5 35. fxg5 hxg5 36. h5 Bc6 37. c3 Rh7 38. g4 Kc7 39. Kf3 Kd7 40. Rg1 Ke8 41. Kg3 f4+ 42. Kf3 Rf8 43. Rb1 Na7 44. Bd1 Rfh8 45. Bc2 Rc7 46. Rh1 Rh6 47. Ke2 Nb5 48. Rh3 Rg7 49. Kf3 Ke7 50. Rh1 Kd7 51. Ra1 Rf7 52. Ba4 Kc7 53. Bxb5 Bxb5 54. Rb1 Bc6 55. Bc1 Rf8 56. Ba3 Ra8 57. Kg2 Rc8 58. R6b2 Rg8 59. Rf2 Rf8 60. Rbf1 Rh7 61. Kh3 Be8 62. c6 Rg8 63. Bd6+ Kxc6 64. Rb1 b5 65. axb6 Kb7 66. Ra2 Bxh5 67. gxh5 Rxh5+ 68. Kg2 Rgh8 69. Rg1 Rh2+ 70. Kf3 Rxa2 71. Rxg5 Rhh2 72. Rg7+ Kxb6 73. Bc5+ Kc6 74. Re7 Rhg2 75. Rxe6+ Kc7 76. Kxf4 Raf2+ 77. Ke3 Re2+ 78. Kf3 Ref2+ 79. Ke3 Rf5 80. Bb6+ Kb7 81. Ba5 Rgf2 82. Re7+ Ka8 83. Re8+ Ka7 84. Re7+ Ka8 85. Re8+ Ka7 86. Re7+ Kb8 87. Re8+ Kb7 88. Re7+ Kc8 89. Re8+ Kd7 90. Rd8+ Ke6 91. Rd6+ Ke7 92. Rxd5 1/2-1/2

