[Event "Detroit"]
[Site "Detroit"]
[Date "1992.??.??"]
[Round "?"]
[White "Burdick, Bruce"]
[Black "De Jongh, J."]
[Result "1-0"]
[ECO "A35"]
[PlyCount "71"]
[EventDate "1992.??.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "USA"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. c4 c5 2. Nc3 Nc6 3. Nf3 e6 4. g3 b6 5. Bg2 Rb8 6. d4 cxd4 7. Nxd4 Nxd4 8. Qxd4 Nf6 9. 0-0 Bc5 10. Qf4 Bb7 11. Nb5 Bxg2 12. Kxg2 Rb7 13. Qf3 d5 14. Bg5 h6 15. Bxf6 Qxf6 16. Qxf6 gxf6 17. cxd5 exd5 18. Rfd1 a6 19. Nc3 d4 20. Ne4 Ke7 21. Rac1 Rd8 22. b3 Rd5 23. Rd3 Rbd7 24. Rcd1 f5 25. Nd2 Re5 26. Kf3 Rd8 27. Nc4 Red5 28. Ne3 Re5 29. Nc2 Red5 30. b4 Kf6 31. bxc5 bxc5 32. Ne3 Re5 33. Nc4 Re6 34. e3 Rde8 35. exd4 Re4 36. Nd6 1-0

[Event "US Open-93"]
[Site "Dearborn"]
[Date "1992.??.??"]
[Round "7"]
[White "Calton, Bill J"]
[Black "De Jongh, J."]
[Result "1-0"]
[ECO "B16"]
[PlyCount "49"]
[EventDate "1992.08.02"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Nf6 5. Nxf6+ gxf6 6. c3 Bf5 7. Nf3 e6 8. Bf4 Bd6 9. Bxd6 Qxd6 10. Bd3 Bg6 11. 0-0 Nd7 12. Re1 0-0-0 13. Bf1 Kb8 14. b4 Nb6 15. c4 Nc8 16. Qb3 h5 17. h4 Bf5 18. g3 Bg4 19. Bg2 Bxf3 20. Qxf3 Qxd4 21. b5 Ne7 22. bxc6 Nxc6 23. Rab1 Kc7 24. Rxb7+ Kxb7 25. Qxc6+ 1-0

[Event "Detroit"]
[Site "Detroit"]
[Date "1992.??.??"]
[Round "?"]
[White "De Jongh, J."]
[Black "Basin, Leonid"]
[Result "0-1"]
[ECO "E38"]
[BlackElo "2430"]
[PlyCount "36"]
[EventDate "1992.??.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "USA"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 0-0 5. Nf3 b6 6. e3 c5 7. Be2 Bb7 8. 0-0 Bxc3 9. Qxc3 Ne4 10. Qc2 d6 11. Bd3 f5 12. Nd2 Qh4 13. Nxe4 fxe4 14. Be2 Nd7 15. b3 Rf6 16. f4 exf3 17. Bxf3 Bxf3 18. Rxf3 Qe1+ 0-1

[Event "Detroit"]
[Site "Detroit"]
[Date "1992.??.??"]
[Round "?"]
[White "De Jongh, J."]
[Black "Cannon, John George"]
[Result "1-0"]
[ECO "D94"]
[PlyCount "99"]
[EventDate "1992.??.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "USA"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. c4 d5 4. Nc3 Bg7 5. e3 0-0 6. Be2 c5 7. 0-0 Nc6 8. dxc5 e6 9. a3 a5 10. Rb1 Nd7 11. cxd5 Bxc3 12. bxc3 exd5 13. Qxd5 Qe7 14. a4 Rd8 15. Ba3 Nf6 16. Qb3 Rb8 17. Nd4 Be6 18. Qc2 Nxd4 19. cxd4 Bf5 20. Bd3 Bd7 21. Rfe1 Bc6 22. f3 Re8 23. e4 Qd7 24. Qc4 Bxa4 25. d5 b5 26. Qd4 Qa7 27. Qxf6 b4 28. Bb2 Qxc5+ 29. Bd4 Qxd4+ 30. Qxd4 h5 31. e5 Kf8 32. e6 Rb7 33. exf7 Rxe1+ 34. Rxe1 Kxf7 35. Qf4+ Kg7 36. Qg5 Rb6 37. Re7+ Kf8 38. Rh7 Be8 39. Rh8+ Kf7 40. Qd8 Rb7 41. Qxe8+ Kf6 42. Qxg6+ Ke5 43. Rxh5+ Kd4 44. Rh4+ Kc3 45. Rc4+ Kb3 46. Qe4 a4 47. Bc2+ Ka3 48. Qe3+ b3 49. Qc3 Ka2 50. Rxa4# 1-0

[Event "Detroit"]
[Site "Detroit"]
[Date "1992.??.??"]
[Round "?"]
[White "De Jongh, J."]
[Black "Mackert, Chris"]
[Result "1/2-1/2"]
[ECO "A30"]
[PlyCount "49"]
[EventDate "1992.??.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "USA"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. c4 c5 2. g3 Nc6 3. Bg2 g6 4. Nf3 Bg7 5. e3 Nf6 6. d4 cxd4 7. exd4 e6 8. Bg5 Qa5+ 9. Qd2 Qxd2+ 10. Nbxd2 0-0 11. 0-0 b6 12. Bxf6 Bxf6 13. Ne5 Bxe5 14. dxe5 Rb8 15. f4 f6 16. exf6 Rxf6 17. Ne4 Rf8 18. Nd6 Ne7 19. Nxc8 Rbxc8 20. Rfd1 Rc7 21. b3 Nf5 22. Rd3 Rd8 23. Re1 Kf8 24. Be4 Ng7 25. Kf2 1/2-1/2

[Event "Detroit"]
[Site "Detroit"]
[Date "1992.??.??"]
[Round "?"]
[White "De Jongh, J."]
[Black "Rosebrook, G."]
[Result "1/2-1/2"]
[ECO "E12"]
[PlyCount "103"]
[EventDate "1992.??.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "USA"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. c4 b6 4. a3 Bb7 5. e3 d6 6. Bd3 Nbd7 7. Qc2 Bxf3 8. gxf3 c6 9. Nc3 g6 10. e4 e5 11. d5 c5 12. Be3 Be7 13. 0-0-0 a6 14. Be2 Qb8 15. f4 h6 16. fxe5 Nxe5 17. h3 Ng8 18. f4 Nd7 19. Kb1 Bf6 20. Rhe1 Ne7 21. Bf2 0-0 22. Rg1 Qc8 23. f5 Ne5 24. fxg6 fxg6 25. Bg4 Nxg4 26. hxg4 Bxc3 27. Qxc3 Rxf2 28. e5 Qb8 29. e6 b5 30. Qe3 Qf8 31. Rh1 Qf6 32. Rd2 Rf1+ 33. Rxf1 Qxf1+ 34. Kc2 Qxc4+ 35. Kb1 Qf1+ 36. Ka2 Qh1 37. Qf4 Rd8 38. Qf7+ Kh8 39. Qxe7 Rg8 40. Qf6+ Kh7 41. e7 Qe4 42. Qxd6 Rg7 43. Qxc5 Rxe7 44. d6 Qe6+ 45. b3 Rd7 46. Qc6 Qxg4 47. Qxa6 Qg5 48. Qa5 Qf4 49. Qc3 h5 50. Qd3 h4 51. Rd1 Qg4 52. Re1 1/2-1/2

[Event "Detroit"]
[Site "Detroit"]
[Date "1992.??.??"]
[Round "?"]
[White "Mankiewicz, Ryan"]
[Black "De Jongh, J."]
[Result "1/2-1/2"]
[ECO "B30"]
[PlyCount "80"]
[EventDate "1992.??.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "USA"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Bb5 Nge7 6. Nf3 a6 7. Bxc6+ Nxc6 8. 0-0 Qb6 9. Qb3 Qxb3 10. axb3 cxd4 11. cxd4 Bd7 12. Nc3 Be7 13. Be3 0-0 14. Rfc1 h6 15. Bd2 f6 16. Na4 Rab8 17. Nc5 Bxc5 18. Rxc5 fxe5 19. dxe5 b6 20. Rcc1 a5 21. Bc3 Be8 22. Re1 Bh5 23. Nd4 Nxd4 24. Bxd4 Rf4 25. Bc3 Bg6 26. Rac1 Rbf8 27. f3 R4f7 28. Bd4 Rb7 29. Rc6 Bf7 30. Rxb6 Rfb8 31. Rxb7 Rxb7 32. Re3 Rb4 33. Bc5 Rb5 34. Rc3 Be8 35. Kf2 a4 36. b4 Rb7 37. g4 Bb5 38. h4 Bc4 39. Ke3 Rd7 40. Kd4 Rf7 1/2-1/2

[Event "US Open-93"]
[Site "Dearborn"]
[Date "1992.??.??"]
[Round "5"]
[White "Steverson, B."]
[Black "De Jongh, J."]
[Result "1-0"]
[ECO "B13"]
[PlyCount "33"]
[EventDate "1992.08.02"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. e3 e6 4. Bd3 c5 5. c3 cxd4 6. exd4 h6 7. 0-0 Be7 8. Ne5 Nbd7 9. f4 Nxe5 10. fxe5 Nd7 11. Qh5 0-0 12. Bxh6 gxh6 13. Qxh6 f5 14. exf6 Nxf6 15. Qg6+ Kh8 16. Rxf6 Rf7 17. Rxf7 1-0

[Event "Detroit"]
[Site "Detroit"]
[Date "1991.??.??"]
[Round "?"]
[White "De Jongh, J."]
[Black "Kruskie, J."]
[Result "0-1"]
[ECO "E41"]
[PlyCount "76"]
[EventDate "1991.??.??"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. dxc5 Bxc3+ 6. bxc3 Na6 7. Nf3 Nxc5 8. Be2 0-0 9. 0-0 b6 10. Ba3 Qc7 11. Bxc5 Qxc5 12. Qd4 Qc7 13. Rfd1 Ba6 14. Qd6 Rac8 15. Ne5 Qxd6 16. Rxd6 Rfd8 17. Rad1 Rc7 18. f3 Kf8 19. R1d4 Ke7 20. Bd1 Ne8 21. Rxd7+ Rdxd7 22. Rxd7+ Rxd7 23. Nxd7 Kxd7 24. Ba4+ Ke7 25. Bxe8 Kxe8 26. Kf2 Kd7 27. a3 Kd6 28. Ke2 Kc5 29. Kd2 Kxc4 30. Kc2 Bb5 31. e4 Ba4+ 32. Kb2 Kd3 33. e5 b5 34. g3 f6 35. exf6 gxf6 36. f4 h5 37. h3 f5 38. h4 Kd2 0-1

[Event "Detroit"]
[Site "Detroit"]
[Date "1991.??.??"]
[Round "?"]
[White "De Jongh, J."]
[Black "Sledge, E."]
[Result "1/2-1/2"]
[ECO "D46"]
[PlyCount "85"]
[EventDate "1991.??.??"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. e3 Be7 5. Nf3 0-0 6. Bd3 c6 7. 0-0 Nbd7 8. a3 Bd6 9. c5 Bb8 10. b4 e5 11. e4 exd4 12. Nxd4 Ne5 13. exd5 cxd5 14. Be2 a6 15. Bg5 h6 16. Bxf6 Qxf6 17. Nxd5 Qd8 18. Nb6 Ra7 19. Nxc8 Qxc8 20. Nf3 Qc7 21. Nxe5 Qxe5 22. g3 Qf6 23. Qc1 Ra8 24. Qe3 Be5 25. Rad1 Rad8 26. Rxd8 Rxd8 27. Qf3 Qxf3 28. Bxf3 Rd7 29. a4 g6 30. c6 bxc6 31. Bxc6 Rd4 32. Rb1 Bd6 33. Bb7 a5 34. bxa5 Rxa4 35. a6 Bc5 36. Rd1 Ra2 37. Rf1 Kg7 38. Kg2 Ba7 39. h3 h5 40. h4 Kf6 41. Bc8 Kg7 42. Bb7 Kf6 43. Bc8 1/2-1/2

[Event "Detroit"]
[Site "Detroit"]
[Date "1991.??.??"]
[Round "?"]
[White "De Jongh, J."]
[Black "Triplett, Thomas L"]
[Result "0-1"]
[ECO "E43"]
[PlyCount "60"]
[EventDate "1991.??.??"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Bd3 Bb7 6. Nf3 Bxc3+ 7. bxc3 Ne4 8. Bxe4 Bxe4 9. 0-0 0-0 10. Ba3 d6 11. Nd2 Bb7 12. Nf3 Nd7 13. Re1 Re8 14. d5 e5 15. e4 Nf6 16. Bc1 h6 17. h3 Bc8 18. Qc2 Bd7 19. Bd2 Nh7 20. Qc1 f5 21. g3 fxe4 22. Rxe4 Rf8 23. Kg2 Qf6 24. Qd1 Bxh3+ 25. Kxh3 Qf5+ 26. Kg2 Qxe4 27. Be3 Rf7 28. Rb1 Raf8 29. Rb4 Rxf3 30. c5 Rxf2+ 0-1

[Event "Detroit"]
[Site "Detroit"]
[Date "1991.??.??"]
[Round "?"]
[White "Lubben, Dan"]
[Black "De Jongh, J."]
[Result "1/2-1/2"]
[ECO "C68"]
[PlyCount "96"]
[EventDate "1991.??.??"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. d4 Bg4 6. dxe5 Qxd1+ 7. Kxd1 0-0-0+ 8. Ke2 Bc5 9. h3 Bxf3+ 10. gxf3 h6 11. Nc3 Ne7 12. Be3 Bxe3 13. Kxe3 Rhe8 14. Rad1 g5 15. Rxd8+ Rxd8 16. h4 Ng6 17. hxg5 hxg5 18. b3 Nxe5 19. Rh5 f6 20. Ne2 c5 21. Nc3 c6 22. Na4 Nd7 23. f4 b5 24. Nb2 gxf4+ 25. Kxf4 Re8 26. Nd3 c4 27. bxc4 bxc4 28. Nc5 Re5 29. Rh8+ Kc7 30. Nxa6+ Kb7 31. Nb4 Nc5 32. f3 Ne6+ 33. Ke3 Ra5 34. Rh6 Ra3+ 35. Kf2 Nd4 36. Rxf6 c5 37. Rf7+ Kb8 38. Nd5 Rxa2 39. Kg3 Nxc2 40. e5 Nd4 41. f4 Ra3+ 42. Kg4 c3 43. Nxc3 Rxc3 44. f5 Rc4 45. Kg5 Rb4 46. e6 Nxe6+ 47. fxe6 Re4 48. e7 Kc8 1/2-1/2

[Event "Detroit"]
[Site "Detroit"]
[Date "1991.??.??"]
[Round "?"]
[White "Ryan, B."]
[Black "De Jongh, J."]
[Result "0-1"]
[ECO "D00"]
[PlyCount "116"]
[EventDate "1991.??.??"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. Nc3 d5 3. Nf3 Bg4 4. e3 e6 5. Be2 Bxf3 6. Bxf3 Bd6 7. e4 dxe4 8. Nxe4 Nxe4 9. Bxe4 c6 10. g3 Nd7 11. 0-0 0-0 12. c4 Nf6 13. Bg5 h6 14. Bxf6 Qxf6 15. Qd3 Rad8 16. Qb3 Qxd4 17. Bg2 Rb8 18. Rad1 Qc5 19. Rfe1 Bc7 20. Qc3 Ba5 21. Re5 Bxc3 22. Rxc5 Bxb2 23. Rb1 Bd4 24. Rh5 Rfd8 25. Kf1 Bb6 26. c5 Bc7 27. Ke2 Ba5 28. Ke3 Bd2+ 29. Ke2 Bg5 30. h4 g6 31. hxg5 gxh5 32. gxh6 Kh7 33. Be4+ Kxh6 34. Rh1 Rh8 35. Kf3 f5 36. Bc2 Rbd8 37. Kf4 Rd2 38. Bd1 Rd4+ 39. Ke5 Re4+ 40. Kf6 Rf8+ 41. Ke7 Kg7 42. Bxh5 Rh8 43. f3 Re3 44. g4 fxg4 45. fxg4 Rf8 46. g5 Re5 47. g6 Rxc5 48. Kd6 Ra5 49. Rh2 Rf6 50. Kc7 Rb5 51. Rh4 Rb2 52. a4 c5 53. Rc4 Rf5 54. Bg4 Rg5 55. Bf3 b6 56. Be4 Rb4 57. Rc2 Rxe4 58. Rd2 Rd4 0-1

[Event "Detroit op"]
[Site "Detroit"]
[Date "1990.??.??"]
[Round "?"]
[White "De Jongh, J."]
[Black "Nikitin, Mikhail"]
[Result "1/2-1/2"]
[ECO "C10"]
[PlyCount "58"]
[EventDate "1990.??.??"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "USA"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 c5 4. Nf3 Nc6 5. Bd3 cxd4 6. exd5 exd5 7. Nb1 Bc5 8. 0-0 Nf6 9. Re1+ Be6 10. Bb5 0-0 11. Bxc6 bxc6 12. Nxd4 Qb6 13. c3 Rfe8 14. b4 Bxd4 15. Qxd4 Bf5 16. Be3 Qxd4 17. cxd4 a5 18. bxa5 Rxa5 19. Nd2 Rea8 20. Nf3 Rxa2 21. Rxa2 Rxa2 22. h3 h6 23. Ne5 Rc2 24. Rb1 Nd7 25. Nxd7 Bxd7 26. Rb7 Be6 27. g4 h5 28. f3 hxg4 29. hxg4 Kh7 1/2-1/2

[Event "Detroit op"]
[Site "Detroit"]
[Date "1990.??.??"]
[Round "?"]
[White "De Jongh, J."]
[Black "Troupe, D."]
[Result "1-0"]
[ECO "D07"]
[PlyCount "115"]
[EventDate "1990.??.??"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "USA"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. d4 d5 2. c4 Nf6 3. Nc3 Nc6 4. e3 Bf5 5. cxd5 Nxd5 6. Bb5 Nxc3 7. Bxc6+ bxc6 8. bxc3 Qd5 9. f3 Qb5 10. e4 Bg6 11. Ne2 e6 12. 0-0 Bd6 13. Nf4 0-0 14. Nxg6 fxg6 15. e5 Be7 16. Qb3 Qd5 17. Qxd5 cxd5 18. a4 Rab8 19. a5 c5 20. Ba3 Rfc8 21. a6 Rb6 22. Bxc5 Bxc5 23. dxc5 Rxc5 24. Rfb1 Rcc6 25. Kf2 Rxb1 26. Rxb1 Rxa6 27. Rb8+ Kf7 28. Rb7+ Kf8 29. Ke3 h6 30. Rb8+ Kf7 31. Rb7+ Kg8 32. Kd4 Ra4+ 33. Kd3 g5 34. g4 a5 35. Re7 Rf4 36. Rxe6 Kf7 37. Ra6 a4 38. Ke3 Ke7 39. h4 Rc4 40. hxg5 Rxc3+ 41. Kd4 Rxf3 42. Kxd5 hxg5 43. Ra7+ Kf8 44. Rxa4 Rf7 45. Ra8+ Ke7 46. Ra7+ Ke8 47. Rxf7 Kxf7 48. Kd6 Ke8 49. Ke6 g6 50. Kf6 Kf8 51. Kxg6 Ke7 52. Kxg5 Ke6 53. Kf4 Kf7 54. Kf5 Ke7 55. g5 Kf7 56. g6+ Kg7 57. e6 Kf8 58. Kf6 1-0

[Event "Detroit op"]
[Site "Detroit"]
[Date "1990.??.??"]
[Round "?"]
[White "Sheaf, Mike"]
[Black "De Jongh, J."]
[Result "1-0"]
[ECO "A01"]
[PlyCount "67"]
[EventDate "1990.??.??"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "USA"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. b3 d6 2. Bb2 e5 3. e3 Nf6 4. c4 Be7 5. Ne2 Nc6 6. d4 exd4 7. Nxd4 Bd7 8. Be2 0-0 9. 0-0 a6 10. Nc3 b6 11. Bf3 Nxd4 12. Bxa8 Nxb3 13. axb3 Qxa8 14. Qd4 c5 15. Qh4 Nd5 16. Qg3 Nxc3 17. Bxc3 f6 18. Rfd1 a5 19. Rd5 Be6 20. Rd2 Qe4 21. Qf4 f5 22. Rad1 Qxf4 23. exf4 Ra8 24. Re2 Kf7 25. Rde1 a4 26. Rxe6 Bf6 27. Bxf6 gxf6 28. bxa4 Rxa4 29. Rxd6 Rxc4 30. Rxb6 Rxf4 31. Rb7+ Kg6 32. Ree7 h6 33. Rg7+ Kh5 34. Rb3 1-0

[Event "Westland SE MI opB"]
[Site "Westland"]
[Date "1985.??.??"]
[Round "4"]
[White "De Jongh, J."]
[Black "Ball, Elliott B"]
[Result "1-0"]
[ECO "E36"]
[PlyCount "101"]
[EventDate "1985.??.??"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "USA"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Bb4 4. Qc2 Nf6 5. a3 Bxc3+ 6. Qxc3 0-0 7. Bg5 c6 8. Nf3 Nbd7 9. e3 Qc7 10. Bd3 Re8 11. 0-0 dxc4 12. Bxc4 Ne4 13. Qc2 Nxg5 14. Nxg5 Nf6 15. Rac1 h6 16. Nf3 b5 17. Bxb5 Bb7 18. Bxc6 Bxc6 19. Qxc6 Qxc6 20. Rxc6 a5 21. Rfc1 Ra7 22. h3 Kf8 23. Ne5 Nd7 24. Nxd7+ Rxd7 25. Ra6 Rb8 26. Rc2 Rdb7 27. Rxa5 Rxb2 28. Rxb2 Rxb2 29. a4 Ra2 30. Ra7 Ra1+ 31. Kh2 g6 32. Kg3 Kg7 33. a5 g5 34. a6 Kh8 35. Ra8+ Kg7 36. a7 Kf6 37. Kg4 Kg7 38. f3 Ra4 39. f4 gxf4 40. Kxf4 f6 41. Kf3 Ra3 42. Re8 Rxa7 43. Rxe6 Rf7 44. d5 f5 45. Kf4 Kh7 46. d6 Kg7 47. Re7 Rxe7 48. dxe7 Kf7 49. Kxf5 Kxe7 50. Kg6 Ke6 51. g4 1-0

[Event "Westland SE MI opB"]
[Site "Westland"]
[Date "1985.??.??"]
[Round "2"]
[White "De Jongh, J."]
[Black "Brown, Doug"]
[Result "0-1"]
[ECO "E90"]
[PlyCount "62"]
[EventDate "1985.??.??"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "USA"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 g6 2. c4 Bg7 3. Nc3 Nf6 4. Nf3 d6 5. e4 Nbd7 6. Be2 c5 7. d5 Ng4 8. Qc2 Nge5 9. Nxe5 Nxe5 10. 0-0 0-0 11. b3 f5 12. f4 Nf7 13. Bb2 Nh6 14. Nd1 Bxb2 15. Qxb2 fxe4 16. Ne3 Nf5 17. Nd1 Nd4 18. Nc3 Bf5 19. Qd2 Qd7 20. Kh1 a6 21. Rac1 Rf7 22. Qe3 Raf8 23. Nxe4 Bxe4 24. Qxe4 Nxe2 25. Qxe2 Rxf4 26. Kg1 Qf5 27. Rxf4 Qxf4 28. Re1 Rf5 29. g3 Qd4+ 30. Kg2 Re5 31. Qf1 Qd2+ 0-1

[Event "Motor City op"]
[Site "Detroit East"]
[Date "1985.??.??"]
[Round "5"]
[White "De Jongh, J."]
[Black "Clark, Kevin"]
[Result "0-1"]
[ECO "D26"]
[PlyCount "82"]
[EventDate "1985.??.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "USA"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. Nc3 e6 5. e3 c5 6. Bxc4 Nc6 7. 0-0 Be7 8. dxc5 0-0 9. a3 Bxc5 10. b4 Bd6 11. Bb2 Ne5 12. Nxe5 Bxe5 13. Qxd8 Rxd8 14. Rad1 Bd7 15. Ba1 Rac8 16. Bxe6 Bxe6 17. Na4 Rxd1 18. Rxd1 Bxa1 19. Rxa1 b6 20. Nb2 Rc2 21. Nd3 Ra2 22. Rxa2 Bxa2 23. Ne5 Kf8 24. Nc6 a6 25. Nb8 Bc4 26. f3 Bb5 27. a4 Nd7 28. axb5 Nxb8 29. bxa6 Nxa6 30. b5 Nc7 31. Kf1 Nxb5 32. Ke2 Ke7 33. Kd3 Ke6 34. g3 f5 35. f4 Kd5 36. h3 h5 37. g4 hxg4 38. hxg4 fxg4 39. e4+ Ke6 40. Ke3 Nd6 41. e5 Nf5+ 0-1

[Event "Westland SE MI opB"]
[Site "Westland"]
[Date "1985.??.??"]
[Round "5"]
[White "De Jongh, J."]
[Black "Clark, Kevin"]
[Result "0-1"]
[ECO "D53"]
[PlyCount "54"]
[EventDate "1985.??.??"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "USA"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. Bg5 Nbd7 5. e3 c6 6. c5 Be7 7. Nf3 b6 8. b4 bxc5 9. Bxf6 Nxf6 10. bxc5 Qa5 11. Qd2 Rb8 12. Bd3 Ba6 13. 0-0 Bxd3 14. Qxd3 0-0 15. Ne5 Qc7 16. Rab1 Bxc5 17. Na4 Bd6 18. f4 Ne4 19. Rbc1 c5 20. dxc5 Nxc5 21. Nxc5 Bxc5 22. Kh1 Rfc8 23. f5 Qxe5 24. fxe6 Qxe6 25. Rce1 Re8 26. Rf3 Qe4 27. Qc3 Bb4 0-1

[Event "Motor City op"]
[Site "Detroit East"]
[Date "1985.??.??"]
[Round "1"]
[White "De Jongh, J."]
[Black "Finegold, Ronald"]
[Result "0-1"]
[ECO "A40"]
[PlyCount "62"]
[EventDate "1985.??.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "USA"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 b5 2. Nf3 e6 3. a3 c5 4. e3 a6 5. Be2 Bb7 6. 0-0 f5 7. Ne5 Nf6 8. Bf3 d5 9. b3 Qc7 10. Bb2 Bd6 11. Nd2 Bxe5 12. dxe5 Nfd7 13. Be2 Nxe5 14. f4 Ng6 15. Bxg7 Qxg7 16. c4 dxc4 17. Bf3 Ra7 18. bxc4 0-0 19. Qc2 b4 20. axb4 cxb4 21. Rab1 a5 22. Rb3 Bxf3 23. Rxf3 Nc6 24. Rf1 Rd8 25. c5 Qe7 26. Rc1 Rad7 27. Rd1 Rd5 28. Rbb1 Qxc5 29. Qxc5 Rxc5 30. Nb3 Rxd1+ 31. Rxd1 Rc3 0-1

[Event "Motor City op"]
[Site "Detroit East"]
[Date "1985.??.??"]
[Round "3"]
[White "De Jongh, J."]
[Black "Krevinko, Steve"]
[Result "1/2-1/2"]
[ECO "E34"]
[PlyCount "128"]
[EventDate "1985.??.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "USA"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 0-0 5. e3 d5 6. Qc2 Ne4 7. Bd3 f5 8. 0-0 Bxc3 9. bxc3 Nd7 10. cxd5 exd5 11. c4 c6 12. Ba3 Rf6 13. cxd5 cxd5 14. Rac1 Rc6 15. Qb2 Nb6 16. Rxc6 bxc6 17. Ne5 Bd7 18. f3 Nf6 19. Qc2 g6 20. Nxc6 Bxc6 21. Qxc6 Kg7 22. Rc1 Rc8 23. Qb7+ Qd7 24. Qxd7+ Nfxd7 25. Rxc8 Nxc8 26. Ba6 Ncb6 27. Kf2 Kf7 28. Bd6 Ke6 29. Bb4 Nb8 30. Bb7 Kd7 31. e4 Kc7 32. Bxd5 Nxd5 33. exd5 Nd7 34. Ke3 Nb6 35. d6+ Kc6 36. Bc5 Nd5+ 37. Kf2 a5 38. g3 a4 39. Ke1 g5 40. Kd2 h5 41. Ba3 Nb6 42. Kd3 Kd5 43. Bc1 Kxd6 44. Bxg5 Kd5 45. Bf6 Nc4 46. h3 Nb2+ 47. Ke2 a3 48. g4 fxg4 49. fxg4 hxg4 50. hxg4 Na4 51. Kd2 Ke4 52. Be5 Nb6 53. g5 Nc4+ 54. Kc3 Nxe5 55. dxe5 Kxe5 56. Kb3 Kf5 57. Kxa3 Kxg5 58. Kb4 Kf6 59. a4 Ke7 60. Kb5 Kd7 61. Kb6 Kc8 62. Ka7 Kc7 63. a5 Kc8 64. a6 Kc7 1/2-1/2

[Event "Motor City op"]
[Site "Detroit East"]
[Date "1985.??.??"]
[Round "2"]
[White "Nelson, M."]
[Black "De Jongh, J."]
[Result "0-1"]
[ECO "D51"]
[PlyCount "76"]
[EventDate "1985.??.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "USA"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Nbd7 5. Qc2 c6 6. e3 Qa5 7. a3 Ne4 8. b4 Bxb4 9. Rc1 Nxg5 10. axb4 Qxb4 11. c5 Ne4 12. Nge2 Qa5 13. f3 Nxc3 14. Nxc3 Qd8 15. Bd3 Nf6 16. Ne2 Bd7 17. 0-0 0-0 18. e4 dxe4 19. fxe4 h6 20. e5 Nd5 21. Rb1 Ne3 22. Bh7+ Kh8 23. Qd3 Nxf1 24. Rxf1 f5 25. exf6 Rxf6 26. Ng3 Rxf1+ 27. Kxf1 Qf6+ 28. Kg1 Be8 29. Be4 Bf7 30. Bf3 Rd8 31. Ne2 e5 32. Qa3 exd4 33. Qxa7 d3 34. Ng3 d2 35. Qa4 Qd4+ 36. Qxd4 Rxd4 37. Bd1 Bg6 38. Nf1 Rc4 0-1

[Event "Westland SE MI opB"]
[Site "Westland"]
[Date "1985.??.??"]
[Round "3"]
[White "Patterson, Tony M"]
[Black "De Jongh, J."]
[Result "0-1"]
[ECO "A07"]
[PlyCount "62"]
[EventDate "1985.??.??"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "USA"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. Nf3 Nc6 2. g3 e5 3. d3 d5 4. c4 dxc4 5. Qa4 cxd3 6. Nxe5 Qd5 7. Nxc6 bxc6 8. e4 Qd6 9. Bxd3 Bd7 10. Qc2 Nf6 11. 0-0 Ng4 12. Bf4 Ne5 13. Nd2 Qxd3 14. Qxd3 Nxd3 15. Bxc7 Nxb2 16. Nf3 f6 17. e5 Rc8 18. Rfe1 Nd3 19. Re3 Rxc7 20. exf6+ Kf7 21. Rxd3 gxf6 22. Rad1 Be6 23. a4 Bd5 24. Nd4 Bb4 25. Nf5 Re8 26. Nd4 Re1+ 27. Rxe1 Bxe1 28. Rd1 Bb4 29. Kf1 a6 30. Nxc6 Bxc6 31. Rc1 Bg2+ 0-1

[Event "Motor City op"]
[Site "Detroit East"]
[Date "1985.??.??"]
[Round "6"]
[White "Sarka, K."]
[Black "De Jongh, J."]
[Result "0-1"]
[ECO "C30"]
[PlyCount "128"]
[EventDate "1985.??.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "USA"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 e5 2. f4 Bc5 3. Nf3 d6 4. Nc3 Nc6 5. f5 Nf6 6. d3 h6 7. Qe2 Bd7 8. a3 a6 9. Be3 Nd4 10. Bxd4 exd4 11. Na2 0-0 12. h3 Re8 13. 0-0-0 Bxf5 14. g4 Bg6 15. Kb1 Nh7 16. Qd2 f6 17. Nc1 c6 18. Ne2 Qb6 19. c4 Bxa3 20. Nexd4 Bc5 21. Nf5 Bxf5 22. gxf5 a5 23. Qc2 a4 24. Ka2 Qd8 25. h4 Qe7 26. Bg2 Qf7 27. Nd2 b5 28. Nb1 b4 29. b3 axb3+ 30. Kxb3 Bd4 31. e5 Qa7 32. Bxc6 dxe5 33. Bxe8 Rxe8 34. Rd2 Ra8 35. Qa2 Qb7 36. Rhh2 Rxa2 37. Rxa2 Qf3 38. Rhd2 Qxf5 39. Ra8+ Nf8 40. Kxb4 Qd7 41. Ra5 Ne6 42. Rda2 Qb7+ 43. Rb5 Bc5+ 44. Kc3 Qf3 45. Nd2 Bd4+ 46. Kc2 Qg2 47. Kb3 Qg3 48. Rb8+ Kh7 49. Raa8 Qxh4 50. Ne4 Nc5+ 51. Nxc5 Bxc5 52. Rd8 Bd4 53. Rac8 Qe1 54. Rb8 Qc3+ 55. Ka4 Qxd3 56. c5 Qc2+ 57. Kb5 Qxc5+ 58. Ka6 h5 59. Rdc8 Qa7+ 60. Kb5 h4 61. Kc4 h3 62. Rh8+ Kg6 63. Rb3 Qa4+ 64. Rb4 Qc2+ 0-1

[Event "Motor City op"]
[Site "Detroit East"]
[Date "1985.??.??"]
[Round "4"]
[White "Steverson, B."]
[Black "De Jongh, J."]
[Result "0-1"]
[ECO "D35"]
[PlyCount "120"]
[EventDate "1985.??.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "USA"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 Nbd7 5. cxd5 Nxd5 6. e4 Nxc3 7. bxc3 Be7 8. Bd3 c6 9. 0-0 0-0 10. Qc2 h6 11. Be3 Re8 12. Qd2 Bf8 13. Bc2 Nf6 14. e5 Nd5 15. Qd3 g6 16. Bd2 Kg7 17. g3 Be7 18. Kh1 Rh8 19. Rg1 Bd7 20. Nh4 Qe8 21. Rab1 b6 22. c4 Nc7 23. Ng2 Rd8 24. Bb3 c5 25. Rbd1 cxd4 26. Qxd4 Bc5 27. Qf4 Be7 28. h4 Bc6 29. Kh2 Bg5 30. Qg4 Bxd2 31. h5 Bg5 32. Nf4 Na6 33. Rxd8 Qxd8 34. hxg6 Qd2 35. Rf1 Nc5 36. Bd1 Bxf4 37. gxf7+ Bg5 38. Be2 Rf8 39. f4 Rxf7 40. fxg5 Qxg5 41. Rxf7+ Kxf7 42. Qd4 Ne4 43. Qg1 Qxe5 44. Qf1+ Nf6 45. Bf3 Qb2+ 46. Kh3 Bxf3 47. Qxf3 Qxa2 48. Qb7+ Kg6 49. Qc7 Qa1 50. Kg2 Qb2+ 51. Kf3 Qc3+ 52. Kg2 Qd2+ 53. Kf3 Qd3+ 54. Kg2 Qe2+ 55. Kg1 Ng4 56. Qf4 Qf2+ 57. Qxf2 Nxf2 58. Kxf2 a5 59. Ke2 Kf5 60. Kd2 Ke4 0-1

[Event "Plymouth ch-MI op"]
[Site "Plymouth"]
[Date "1984.??.??"]
[Round "?"]
[White "Brattin, Vincent"]
[Black "De Jongh, J."]
[Result "1-0"]
[ECO "C00"]
[PlyCount "149"]
[EventDate "1984.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "USA"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. Nc3 d5 2. e4 dxe4 3. Nxe4 e6 4. Nf3 Nf6 5. Bd3 Nc6 6. Qe2 Be7 7. c3 Nd5 8. g3 a6 9. h4 e5 10. Neg5 Bg4 11. Bc4 h6 12. Nxf7 Kxf7 13. Nxe5+ Nxe5 14. Qxe5 Be6 15. d4 Bf6 16. Qe4 Re8 17. 0-0 c6 18. h5 Ke7 19. Re1 Kd7 20. Bd3 Bh3 21. Qxe8+ Qxe8 22. Rxe8 Rxe8 23. Bd2 Bg4 24. c4 Nc7 25. Bg6 Re2 26. Bc3 Ne6 27. Bd3 Bxd4 28. Bxe2 Bxe2 29. Bxd4 Nxd4 30. b3 Bxh5 31. f4 c5 32. Kf2 g5 33. Rh1 Be2 34. Rxh6 gxf4 35. gxf4 Bd3 36. Rh1 a5 37. Ke3 Bf5 38. Rh5 b6 39. Rh1 Kc7 40. Kd2 Kc6 41. Rh6+ Kc7 42. Kc3 Ne2+ 43. Kd2 Nd4 44. Kc3 Bb1 45. Rh2 Bf5 46. a3 Ne6 47. Re2 Nd4 48. Re5 Bb1 49. Re1 Bf5 50. b4 Nc6 51. bxc5 bxc5 52. Re8 Nd4 53. Re5 Kc6 54. Rd5 Nb5+ 55. Kb3 Nd4+ 56. Ka4 Bc2+ 57. Kxa5 Bb3 58. Rh5 Bxc4 59. f5 Bb3 60. f6 Kd6 61. Kb6 Ne6 62. Rf5 c4 63. Ka5 c3 64. Kb4 c2 65. Rf1 Ba2 66. Kc3 Bb1 67. Kb2 Nf8 68. a4 Kc5 69. Rf4 Kb6 70. Rd4 Ka5 71. Rd8 Ne6 72. Ra8+ Kb6 73. f7 Nc5 74. Rb8+ Kc7 75. Rc8+ 1-0

[Event "Plymouth ch-MI op"]
[Site "Plymouth"]
[Date "1984.??.??"]
[Round "?"]
[White "Carpenter, T."]
[Black "De Jongh, J."]
[Result "0-1"]
[ECO "C77"]
[PlyCount "62"]
[EventDate "1984.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "USA"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. Nc3 b5 6. Bb3 Be7 7. Ng5 0-0 8. Nd5 Nxd5 9. exd5 Nd4 10. d3 Bxg5 11. Bxg5 Qxg5 12. Qd2 Qxd2+ 13. Kxd2 d6 14. a4 Nxb3+ 15. cxb3 Bb7 16. Rhc1 Rfc8 17. axb5 axb5 18. Rxa8 Bxa8 19. Ra1 Bxd5 20. Ra5 c6 21. b4 Bxg2 22. Ke1 g5 23. Ra7 d5 24. Ke2 Kf8 25. d4 exd4 26. Kd3 c5 27. bxc5 Rxc5 28. Ra8+ Kg7 29. Kxd4 Rc4+ 30. Ke5 Rb4 31. Ra2 d4 0-1

[Event "Plymouth ch-MI op"]
[Site "Plymouth"]
[Date "1984.??.??"]
[Round "?"]
[White "De Jongh, J."]
[Black "Fawaz, Mo"]
[Result "1-0"]
[ECO "D25"]
[PlyCount "121"]
[EventDate "1984.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "USA"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. d4 d5 2. c4 Nf6 3. Nc3 dxc4 4. e3 Be6 5. Nf3 g6 6. Ng5 Bg4 7. f3 Bh6 8. fxg4 Bxg5 9. Bxc4 0-0 10. 0-0 Qd7 11. h3 Nc6 12. b3 e5 13. dxe5 Qxd1 14. Rxd1 Nxe5 15. e4 Bxc1 16. Raxc1 Nxc4 17. bxc4 Rfe8 18. Re1 c6 19. Re2 Rad8 20. e5 Nd7 21. Rd1 Nc5 22. Rde1 Rd4 23. Ne4 Rxc4 24. Nf6+ Kf8 25. Nxe8 Kxe8 26. Rf1 Ke7 27. Ref2 Ke6 28. Rxf7 Kxe5 29. Rxh7 Rf4 30. Rc1 Kd5 31. Rg7 Ra4 32. Rxg6 Rxa2 33. Rg5+ Kd6 34. Rgxc5 a5 35. g5 a4 36. Ra5 b5 37. g6 Ra3 38. Ra6 b4 39. Raxc6+ Kd5 40. Rb6 Rg3 41. Rxb4 a3 42. Ra4 Ke6 43. Ra1 Kf6 44. R4xa3 Rxg6 45. Ra6+ Kg5 46. Rxg6+ Kxg6 47. Rf1 Kg5 48. g3 Kh5 49. Rf5+ Kg6 50. g4 Kh6 51. h4 Kg6 52. h5+ Kh6 53. Kg2 Kg7 54. Kg3 Kh7 55. g5 Kg7 56. Kg4 Kh7 57. Rf7+ Kg8 58. g6 Kh8 59. h6 Kg8 60. Rf6 Kh8 61. Rf8# 1-0

[Event "Plymouth ch-MI op"]
[Site "Plymouth"]
[Date "1984.??.??"]
[Round "?"]
[White "De Jongh, J."]
[Black "Lloyd, Jeff Lynn"]
[Result "0-1"]
[ECO "A81"]
[PlyCount "86"]
[EventDate "1984.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "USA"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. d4 f5 2. g3 e6 3. Bg2 Nf6 4. Nf3 Be7 5. Nc3 0-0 6. Bf4 d6 7. Bd2 Nc6 8. e3 e5 9. d5 Nb4 10. Bc1 e4 11. Ng1 c6 12. dxc6 bxc6 13. a3 Na6 14. Nge2 Nc7 15. 0-0 Rb8 16. b3 Ba6 17. Re1 c5 18. Nf4 Qd7 19. Bb2 d5 20. h3 Bb7 21. Bf1 Rbd8 22. a4 a6 23. a5 Qc6 24. Qe2 Rfe8 25. Bg2 Bd6 26. Na4 Be5 27. Bxe5 Rxe5 28. c3 Qe8 29. Bf1 Bc6 30. Nxc5 Qe7 31. Nxa6 Bb5 32. Qb2 Bxa6 33. b4 Rb8 34. Bxa6 Nxa6 35. b5 Nc5 36. Qb4 Qc7 37. b6 Qc6 38. Red1 g5 39. Ne2 Nd3 40. Qd4 Ree8 41. Rdb1 Nd7 42. Rd1 N7e5 43. Rab1 Nf3+ 0-1

[Event "Plymouth ch-MI op"]
[Site "Plymouth"]
[Date "1984.??.??"]
[Round "?"]
[White "Reno, G."]
[Black "De Jongh, J."]
[Result "0-1"]
[ECO "C50"]
[PlyCount "56"]
[EventDate "1984.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "USA"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. Nc3 Nf6 5. d3 0-0 6. 0-0 h6 7. h3 d6 8. Be3 a6 9. Qd2 Bxe3 10. Qxe3 Na5 11. b3 b5 12. Bd5 c6 13. Bxc6 Nxc6 14. Nh4 Nd4 15. Rac1 Bb7 16. Qg3 Bc8 17. b4 Nh5 18. Qh2 Qxh4 19. Rfe1 Qg5 20. Qh1 Nf3+ 21. Kf1 Nxe1 22. Rxe1 Bb7 23. Re3 Qxe3 24. fxe3 Ng3+ 25. Kg1 Nxh1 26. Kxh1 f5 27. exf5 Rxf5 28. e4 Rf2 0-1

[Event "Detroit East op"]
[Site "Detroit East"]
[Date "1983.??.??"]
[Round "?"]
[White "Bautista, Lester"]
[Black "De Jongh, J."]
[Result "1-0"]
[ECO "B44"]
[PlyCount "45"]
[EventDate "1983.??.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "USA"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. c4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. e4 Bb4 7. Nxc6 Bxc3+ 8. bxc3 bxc6 9. Qc2 e5 10. Ba3 Ba6 11. Be2 Rc8 12. Qa4 Qb6 13. c5 Bb5 14. cxb6 Bxa4 15. b7 Rb8 16. Ba6 Nxe4 17. f3 d6 18. fxe4 c5 19. Kd2 Bc6 20. Ke3 0-0 21. Rab1 f6 22. Rhd1 Rfd8 23. Bxc5 1-0

[Event "Detroit East op"]
[Site "Detroit East"]
[Date "1983.??.??"]
[Round "?"]
[White "De Jongh, J."]
[Black "Bolter, C."]
[Result "1-0"]
[ECO "B54"]
[PlyCount "87"]
[EventDate "1983.??.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "USA"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 e5 6. Nf3 h6 7. Bc4 Nf6 8. 0-0 Be7 9. Re1 0-0 10. Nd5 Nxd5 11. Bxd5 Nc6 12. c3 Kh8 13. Qc2 Bg4 14. Qd3 Qc8 15. Re3 f5 16. exf5 Bxf5 17. Be4 Bxe4 18. Qxe4 Nd8 19. Nh4 Bxh4 20. Qxh4 Rf4 21. Qh5 Qe6 22. Rf3 Rxf3 23. Qxf3 Nf7 24. Qxb7 Re8 25. Qxa6 e4 26. Be3 Ne5 27. Rd1 Nd3 28. Rxd3 exd3 29. Qxd3 d5 30. h3 Kg8 31. b4 Ra8 32. Qc2 d4 33. Bxd4 Rxa2 34. Qb1 Re2 35. Be3 Rxe3 36. fxe3 Qxe3+ 37. Kh1 Qxc3 38. b5 Qc8 39. b6 Qb8 40. b7 Kf7 41. Qb6 Ke7 42. Qg6 Kf8 43. Qc6 Ke7 44. Qc8 1-0

[Event "Detroit East op"]
[Site "Detroit East"]
[Date "1983.??.??"]
[Round "?"]
[White "De Jongh, J."]
[Black "Suess, John"]
[Result "1-0"]
[ECO "C01"]
[PlyCount "120"]
[EventDate "1983.??.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "USA"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 e6 2. d4 c6 3. Nf3 Nf6 4. Bd3 Be7 5. 0-0 d5 6. e5 Ne4 7. Nbd2 Nxd2 8. Bxd2 Nd7 9. c3 Nb6 10. b3 Qd7 11. a4 a5 12. Ng5 f5 13. exf6 Bxf6 14. Re1 Qe7 15. Qg4 h5 16. Bg6+ Kd8 17. Bxh5 e5 18. Nf7+ Qxf7 19. Qxc8+ Kxc8 20. Bxf7 e4 21. Be6+ Kd8 22. Bg4 Nd7 23. f3 exf3 24. Bxf3 Kc7 25. Bf4+ Kb6 26. Re6 Ka7 27. Rd1 Nf8 28. Re2 Ng6 29. Bd6 Rhd8 30. Bc5+ b6 31. Ba3 Re8 32. b4 Nf4 33. Rf2 Bh4 34. Rc2 Re1+ 35. Rxe1 Bxe1 36. bxa5 bxa5 37. Bc5+ Kb7 38. Rb2+ Kc8 39. Bg4+ Kd8 40. Rb7 Bxc3 41. Rxg7 Ra6 42. Rg8+ Kc7 43. Rc8+ Kb7 44. Rf8 Nd3 45. Rf7+ Ka8 46. Rf8+ Kb7 47. Bc8+ Kc7 48. Bxa6 Nxc5 49. dxc5 Bd4+ 50. Kf1 Bxc5 51. Rf3 Bb4 52. h4 d4 53. h5 Kb6 54. Bd3 Bd2 55. Rf5 Kc7 56. g4 Kd7 57. g5 Ke6 58. g6 Bh6 59. Rxa5 Kd6 60. Ra7 Kd5 1-0

[Event "Detroit East op"]
[Site "Detroit East"]
[Date "1983.??.??"]
[Round "?"]
[White "De Jongh, J."]
[Black "Ward, Tim"]
[Result "1/2-1/2"]
[ECO "C02"]
[PlyCount "61"]
[EventDate "1983.??.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "USA"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. e5 c5 4. Ne2 cxd4 5. Nxd4 Nc6 6. Bb5 Bd7 7. Nxc6 bxc6 8. Bd3 Ne7 9. 0-0 Ng6 10. Re1 Be7 11. Nd2 0-0 12. Nf3 Qc7 13. Bd2 c5 14. c3 Bc6 15. Ng5 Bxg5 16. Bxg5 Nxe5 17. Bf4 f6 18. Qh5 g6 19. Bxe5 fxe5 20. Qxe5 Qxe5 21. Rxe5 Rf6 22. c4 Rd8 23. Rae1 Rd6 24. b3 a5 25. f3 Bd7 26. cxd5 exd5 27. Rc1 c4 28. bxc4 dxc4 29. Bxc4+ Be6 30. Bxe6+ Rfxe6 31. Rxe6 1/2-1/2

[Event "Detroit East op"]
[Site "Detroit East"]
[Date "1983.??.??"]
[Round "?"]
[White "Finegold, Benjamin"]
[Black "De Jongh, J."]
[Result "1-0"]
[ECO "C30"]
[PlyCount "103"]
[EventDate "1983.??.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "USA"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 e5 2. f4 Bc5 3. Nf3 d6 4. c3 Nc6 5. d4 exd4 6. cxd4 Bb6 7. Nc3 Bg4 8. d5 Nd4 9. Be2 Nxe2 10. Qxe2 Nf6 11. Be3 Bxe3 12. Qxe3 0-0 13. 0-0-0 Re8 14. Qd4 b6 15. h3 Bxf3 16. gxf3 Nh5 17. Rhg1 Qf6 18. Rg4 Qxd4 19. Rxd4 g6 20. Rc4 Rac8 21. Ne2 Nf6 22. Rg2 Nd7 23. Nd4 Nc5 24. Kd2 b5 25. Rc1 a6 26. b4 Nxe4+ 27. fxe4 Rxe4 28. Nc6 Kf8 29. f5 Rf4 30. fxg6 fxg6 31. Re1 Kg7 32. Re7+ Kh6 33. Ke3 Rcf8 34. Nd4 Rh4 35. Ne6 Rxh3+ 36. Ke2 Rf5 37. Nxc7 Rh4 38. Rf2 Rxf2+ 39. Kxf2 Rxb4 40. Re6 Rb2+ 41. Ke3 Rxa2 42. Rxd6 b4 43. Rb6 a5 44. d6 Ra1 45. Nd5 Re1+ 46. Kd2 Re8 47. d7 Rd8 48. Rd6 Kg7 49. Ne7 Kf7 50. Nc6 a4 51. Nxd8+ Ke7 52. Nb7 1-0

[Event "Detroit East op"]
[Site "Detroit East"]
[Date "1983.??.??"]
[Round "?"]
[White "Levadi, David"]
[Black "De Jongh, J."]
[Result "0-1"]
[ECO "A06"]
[PlyCount "62"]
[EventDate "1983.??.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "USA"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. Nf3 d5 2. b3 Nf6 3. Bb2 e6 4. e3 Be7 5. Be2 0-0 6. 0-0 Nbd7 7. d3 b6 8. Nbd2 Bb7 9. Re1 c5 10. c4 Qc7 11. Rc1 Rac8 12. Rc2 Bd6 13. cxd5 exd5 14. Nf1 Qd8 15. Ng3 Bxg3 16. hxg3 Re8 17. Qa1 Qe7 18. Bd1 Qd6 19. Qc1 Ba6 20. Be2 Bb7 21. Qd2 Rc6 22. Rec1 Ng4 23. Ng5 Ndf6 24. b4 h6 25. bxc5 bxc5 26. Nh3 Nxe3 27. fxe3 Qxg3 28. Bf3 Ng4 29. Bxg4 Qxg4 30. Rxc5 Rg6 31. Bd4 Qxh3 0-1

