[Event "DEN-ch65 Mesterskabet"]
[Site "Vejle"]
[Date "1974.04.15"]
[Round "10"]
[White "Nielsen, K."]
[Black "Nielsen, Hartvig"]
[Result "1-0"]
[ECO "A01"]
[PlyCount "49"]
[EventDate "1974.04.06"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "DEN"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. b3 e5 2. Bb2 Nc6 3. e3 Nf6 4. Bb5 d6 5. Nf3 Bd7 6. 0-0 g6 7. d4 Bg7 8. Bxc6 Bxc6 9. dxe5 Ng4 10. Nd4 Qh4 11. h3 Nxe5 12. Nxc6 bxc6 13. f4 Nf3+ 14. Qxf3 Bxb2 15. Qxc6+ Ke7 16. Nc3 Bxa1 17. Nd5+ Ke6 18. Nxc7+ Ke7 19. Nxa8 Bb2 20. Qc7+ Kf6 21. Qxa7 Kg7 22. Nb6 Qh5 23. Nc4 Bc3 24. Nxd6 Qd5 25. Qd7 1-0

[Event "DEN-ch65 Mesterskabet"]
[Site "Vejle"]
[Date "1974.04.14"]
[Round "9"]
[White "Nielsen, Hartvig"]
[Black "Hjort, Helge"]
[Result "0-1"]
[ECO "B62"]
[PlyCount "103"]
[EventDate "1974.04.06"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "DEN"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Bb5 Bd7 8. 0-0 h6 9. Be3 Be7 10. f4 Qc7 11. f5 Ne5 12. fxe6 Bc6 13. Nd5 Nxd5 14. exd5 Bxb5 15. Nxb5 Qc4 16. exf7+ Nxf7 17. a4 0-0 18. b3 Qe4 19. Qd2 Bf6 20. Rae1 a6 21. Bf4 Qg6 22. Nxd6 Ng5 23. Qd3 Qxd3 24. cxd3 Rfd8 25. h4 Nh7 26. g3 g5 27. hxg5 hxg5 28. Nxb7 Rxd5 29. Bd6 Ra7 30. Re8+ Kg7 31. Rb8 Bd4+ 32. Kg2 Nf6 33. Re1 Kg6 34. Bf8 Nd7 35. Re6+ Kh5 36. Rh6+ Kg4 37. Re8 Be5 38. Nd6 Nxf8 39. Ne4 Rf7 40. Nf2+ Rxf2+ 41. Kxf2 Bxg3+ 42. Ke3 Nd7 43. d4 a5 44. Ke4 Rf5 45. Ree6 Rf3 46. Ra6 Be1 47. Rh1 Nf6+ 48. Rxf6 Rxf6 49. Rg1+ Bg3 50. d5 Rb6 51. Rb1 Rb4+ 52. Kd3 0-1

[Event "DEN-ch65 Mesterskabet"]
[Site "Vejle"]
[Date "1974.04.13"]
[Round "8"]
[White "Sorensen, Ta"]
[Black "Nielsen, Hartvig"]
[Result "0-1"]
[ECO "C47"]
[PlyCount "44"]
[EventDate "1974.04.06"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "DEN"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 e5 2. Nc3 Nc6 3. Nf3 Nf6 4. d4 exd4 5. Nd5 Nxe4 6. Bc4 Bb4+ 7. c3 dxc3 8. 0-0 0-0 9. Qc2 Nd2 10. bxc3 Nxf3+ 11. gxf3 Bd6 12. f4 b6 13. Qf5 Bb7 14. Bb2 Qh4 15. Bd3 Rae8 16. Rae1 Re6 17. Re3 Rg6+ 18. Rg3 Ne7 19. Nxe7+ Bxe7 20. Re1 Bc5 21. Be4 Rxg3+ 22. hxg3 Qxg3+ 0-1

[Event "DEN-ch65 Mesterskabet"]
[Site "Vejle"]
[Date "1974.04.12"]
[Round "7"]
[White "Nielsen, Hartvig"]
[Black "Jorgensen, Jorgen"]
[Result "1-0"]
[ECO "A83"]
[PlyCount "57"]
[EventDate "1974.04.06"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "DEN"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 f5 2. e4 fxe4 3. Nc3 Nf6 4. Bg5 c6 5. f3 Qa5 6. Bxf6 exf6 7. fxe4 Bb4 8. Qf3 d5 9. Nge2 dxe4 10. Qxe4+ Kf7 11. 0-0-0 Qg5+ 12. Qf4 Bxc3 13. bxc3 Qa5 14. g4 Be6 15. h4 Nd7 16. Bg2 Rhe8 17. Ng3 Nb6 18. Rde1 Nc4 19. Ne4 Kg8 20. Bf1 Rad8 21. g5 Rxd4 22. Nxf6+ gxf6 23. Qxd4 Rd8 24. Bxc4 Qa3+ 25. Kb1 Rxd4 26. Bxe6+ Kh8 27. cxd4 Qb4+ 28. Bb3 Qxd4 29. Re8+ 1-0

[Event "DEN-ch65 Mesterskabet"]
[Site "Vejle"]
[Date "1974.04.11"]
[Round "6"]
[White "Nielsen, Hartvig"]
[Black "Madsen, Peder"]
[Result "0-1"]
[ECO "C56"]
[PlyCount "86"]
[EventDate "1974.04.06"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "DEN"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Nf6 5. 0-0 Nxe4 6. Re1 d5 7. Bxd5 Qxd5 8. Nc3 Qa5 9. Nxe4 Be6 10. Bd2 Qf5 11. Ng3 Qd5 12. c3 0-0-0 13. Qa4 Be7 14. cxd4 Kb8 15. Bc3 Bf6 16. Ne2 Bg4 17. Ne5 Bd7 18. Nf4 Nxe5 19. Nxd5 Bxa4 20. Nxf6 Nf3+ 21. gxf3 gxf6 22. h4 Rd5 23. Re4 Rf5 24. d5 Bc2 25. Re7 Rg8+ 26. Kf1 Bd3+ 27. Ke1 Bb5 28. Kd2 Rxf3 29. Rae1 Rxf2+ 30. Ke3 Rf5 31. Rxf7 Rg3+ 32. Kd2 Rxd5+ 33. Kc1 b6 34. Bxf6 Rf3 35. Ree7 Rf1+ 36. Kc2 Rf2+ 37. Kb3 Rc5 38. Bd4 Bc4+ 39. Kc3 Bxf7+ 40. Bxc5 bxc5 41. a4 Rf3+ 42. Kd2 Kb7 43. h5 h6 0-1

[Event "DEN-ch65 Mesterskabet"]
[Site "Vejle"]
[Date "1974.04.10"]
[Round "5"]
[White "Hansen, Poul Henrik"]
[Black "Nielsen, Hartvig"]
[Result "1-0"]
[ECO "A07"]
[PlyCount "73"]
[EventDate "1974.04.06"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "DEN"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 d5 3. b3 Bf5 4. Bb2 c6 5. Bg2 Nbd7 6. 0-0 Qc7 7. c4 e6 8. d3 Be7 9. Nh4 Bg4 10. h3 Bh5 11. cxd5 Nxd5 12. Nf3 Bf6 13. Bxf6 N5xf6 14. Nbd2 Rd8 15. Qc1 0-0 16. Qa3 a6 17. Rac1 Ne5 18. Rfe1 Rd7 19. Nxe5 Qxe5 20. Qc5 Qxc5 21. Rxc5 Bg6 22. b4 Rfd8 23. a4 Rd4 24. Rc4 Kf8 25. Rec1 Ne8 26. Nb3 Rxc4 27. Rxc4 Nd6 28. Rc5 Ke7 29. Na5 f6 30. Nxb7 Nxb7 31. Rxc6 Nd6 32. Rxa6 Be8 33. b5 Bd7 34. b6 Bc8 35. Ra7+ Rd7 36. a5 e5 37. Bc6 1-0

[Event "DEN-ch65 Mesterskabet"]
[Site "Vejle"]
[Date "1974.04.09"]
[Round "4"]
[White "Nielsen, Hartvig"]
[Black "Kolbak, Jens"]
[Result "0-1"]
[ECO "B44"]
[PlyCount "122"]
[EventDate "1974.04.06"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "DEN"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nb5 d6 6. N1c3 a6 7. Nd4 Nf6 8. Be3 Bd7 9. a4 Nxd4 10. Bxd4 Bc6 11. Bd3 e5 12. Be3 d5 13. Bg5 Bb4 14. exd5 Qxd5 15. f3 Bxc3+ 16. bxc3 Qc5 17. Qd2 Rd8 18. Be3 Qe7 19. 0-0 Nd5 20. Bf2 0-0 21. Rfe1 Qf6 22. a5 Rfe8 23. Bg3 h6 24. c4 Nf4 25. Bxf4 exf4 26. Rxe8+ Rxe8 27. Re1 Re3 28. Rxe3 fxe3 29. Qxe3 Qa1+ 30. Kf2 Qxa5 31. Ke2 Qc7 32. g3 Qd6 33. c3 Qf6 34. f4 Kf8 35. Qd4 Qe7+ 36. Kd2 h5 37. c5 Kg8 38. Qd6 Qe8 39. Qe5 Qxe5 40. fxe5 Kf8 41. Kc2 Bd5 42. c4 Bc6 43. Bf5 Ke7 44. Kc3 a5 45. Kb3 g6 46. Bh3 f5 47. exf6+ Kxf6 48. Bf1 Ke5 49. Kc3 g5 50. h4 gxh4 51. gxh4 Kf4 52. Be2 Be8 53. Kb3 Kg3 54. c6 bxc6 55. Ka4 Kxh4 56. Bf3 Kg3 57. Bh1 h4 58. c5 h3 59. Kxa5 h2 60. Kb6 Kf2 61. Kc7 Kg1 0-1

[Event "DEN-ch65 Mesterskabet"]
[Site "Vejle"]
[Date "1974.04.08"]
[Round "3"]
[White "Ost Hansen, Jacob"]
[Black "Nielsen, Hartvig"]
[Result "1-0"]
[ECO "A25"]
[PlyCount "53"]
[EventDate "1974.04.06"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "DEN"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. g3 e5 2. Bg2 Nf6 3. c4 Nc6 4. Nc3 Bb4 5. e4 0-0 6. Nge2 Re8 7. 0-0 Nd4 8. d3 c6 9. a3 Bf8 10. h3 d6 11. Nxd4 exd4 12. Ne2 c5 13. b4 Rb8 14. b5 a5 15. f4 g6 16. Ra2 Nh5 17. g4 Ng7 18. f5 f6 19. h4 h5 20. Nf4 gxf5 21. gxf5 Re5 22. Bf3 Bxf5 23. exf5 Nxf5 24. Bd5+ Kh7 25. Ne6 Qe8 26. Nxf8+ Qxf8 27. Rxf5 1-0

[Event "DEN-ch65 Mesterskabet"]
[Site "Vejle"]
[Date "1974.04.07"]
[Round "2"]
[White "Sorensen, A."]
[Black "Nielsen, Hartvig"]
[Result "1-0"]
[ECO "A25"]
[PlyCount "27"]
[EventDate "1974.04.06"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "DEN"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 Nc6 3. g3 f5 4. Bg2 Bc5 5. e3 Nf6 6. Nge2 0-0 7. d4 exd4 8. exd4 Be7 9. 0-0 d6 10. Nf4 Qe8 11. Re1 Qf7 12. Ncd5 Bd8 13. h4 Re8 14. Nxf6+ 1-0

[Event "DEN-ch65 Mesterskabet"]
[Site "Vejle"]
[Date "1974.04.06"]
[Round "1"]
[White "Nielsen, Hartvig"]
[Black "Bjerring, Kai"]
[Result "0-1"]
[ECO "A03"]
[PlyCount "81"]
[EventDate "1974.04.06"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "DEN"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. f4 c5 2. Nf3 Nc6 3. g3 d5 4. Bg2 g6 5. 0-0 Bg7 6. d3 Nf6 7. c4 0-0 8. Nbd2 Nd4 9. e3 Nf5 10. Nb3 Ng4 11. Qe2 dxc4 12. dxc4 Qc7 13. e4 Nd4 14. Nbxd4 cxd4 15. e5 Rd8 16. Rd1 Qb6 17. Kf1 h5 18. h3 Nh6 19. Qf2 Be6 20. b3 Nf5 21. Rd3 Bh6 22. Ng5 Bxg5 23. fxg5 Rd7 24. Bf4 Ng7 25. Rad1 Rad8 26. Kg1 Bf5 27. R3d2 Ne6 28. Kh2 a5 29. Qf3 Nxf4 30. Qxf4 d3 31. Bd5 e6 32. Bf3 Rd4 33. Qe3 Qb4 34. g4 hxg4 35. hxg4 Bxg4 36. Bxg4 Rxg4 37. Rxd3 Rxd3 38. Qxd3 Qc5 39. Kh3 Rf4 40. Qd8+ Kg7 41. Qd2 0-1

[Event "DEN-ch corr"]
[Site "Denmark"]
[Date "1974.??.??"]
[Round "?"]
[White "Jorgensen, Jens Peter"]
[Black "Nielsen, Hartvig"]
[Result "1/2-1/2"]
[ECO "C69"]
[PlyCount "35"]
[EventDate "1974.??.??"]
[EventType "tourn (corr)"]
[EventRounds "9"]
[EventCountry "DEN"]
[SourceTitle "Corr 2000"]
[Source "ChessBase"]
[SourceDate "2000.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. 0-0 f6 6. d4 Bg4 7. dxe5 Qxd1 8. Rxd1 fxe5 9. Rd3 Bd6 10. Nbd2 Nf6 11. Nc4 Nxe4 12. Nfxe5 Be6 13. f3 Bxe5 14. Nxe5 Nc5 15. Re3 0-0-0 16. Re1 Rhe8 17. Be3 Nd7 18. Bg5 1/2-1/2

[Event "DEN-ch corr"]
[Site "Denmark"]
[Date "1974.??.??"]
[Round "?"]
[White "Nielsen, Gunnar"]
[Black "Nielsen, Hartvig"]
[Result "1/2-1/2"]
[ECO "C73"]
[PlyCount "99"]
[EventDate "1974.??.??"]
[EventType "tourn (corr)"]
[EventRounds "9"]
[EventCountry "DEN"]
[SourceTitle "Corr 2000"]
[Source "ChessBase"]
[SourceDate "2000.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. Bxc6+ bxc6 6. d4 f6 7. Be3 g6 8. Qd2 Bg7 9. Nc3 Ne7 10. 0-0 0-0 11. Rad1 Bg4 12. Qe2 Qc8 13. h3 Be6 14. dxe5 fxe5 15. Ng5 a5 16. b3 h6 17. Nxe6 Qxe6 18. a4 Kh7 19. Qg4 Qxg4 20. hxg4 Rf7 21. f3 Bf6 22. Kf2 Bg5 23. Rd2 Kg7 24. Nd1 Kf6 25. Ke2 Bf4 26. Rd3 Bxe3 27. Nxe3 h5 28. f4 exf4 29. Rxf4+ Ke6 30. Rxf7 Kxf7 31. gxh5 gxh5 32. Nc4 Ng6 33. Rf3+ Ke6 34. Rg3 Kf6 35. Ke3 d5 36. Nd2 Ne5 37. Kd4 Rd8 38. exd5 Rxd5+ 39. Kc3 Rc5+ 40. Kb2 Rd5 41. Nf3 c5 42. Nxe5 Rxe5 43. Rg8 c4 44. bxc4 Rg5 45. Rf8+ Ke5 46. Rc8 Kd6 47. Rh8 c6 48. Kb3 Rg3+ 49. c3 Rg5 50. Rh6+ 1/2-1/2

[Event "DEN-ch corr"]
[Site "Denmark"]
[Date "1974.??.??"]
[Round "?"]
[White "Nielsen, Hartvig"]
[Black "Granberg, Niels"]
[Result "0-1"]
[ECO "B99"]
[PlyCount "68"]
[EventDate "1974.??.??"]
[EventType "tourn (corr)"]
[EventRounds "9"]
[EventCountry "DEN"]
[SourceTitle "Corr 2000"]
[Source "ChessBase"]
[SourceDate "2000.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Be7 8. Qf3 Qc7 9. 0-0-0 Nbd7 10. Bd3 h6 11. Bh4 g5 12. fxg5 Ne5 13. Qe2 Nfg4 14. Nf3 hxg5 15. Bg3 Bd7 16. Nxe5 Nxe5 17. Bxe5 dxe5 18. Qf2 Rf8 19. Be2 0-0-0 20. Rd3 Bc6 21. Rhd1 Rxd3 22. Rxd3 f5 23. exf5 e4 24. Rh3 exf5 25. Bc4 Qe5 26. Rh6 e3 27. Qe2 Bf6 28. Bxa6 bxa6 29. Qxa6+ Bb7 30. Qc4+ Kb8 31. Rh7 Bg7 32. Qb5 Qxb5 33. Nxb5 Rd8 34. Rxg7 e2 0-1

[Event "DEN-ch corr"]
[Site "Denmark"]
[Date "1974.??.??"]
[Round "?"]
[White "Nielsen, Hartvig"]
[Black "Kjarbye, Michael"]
[Result "0-1"]
[ECO "B78"]
[PlyCount "42"]
[EventDate "1974.??.??"]
[EventType "tourn (corr)"]
[EventRounds "9"]
[EventCountry "DEN"]
[SourceTitle "Corr 2000"]
[Source "ChessBase"]
[SourceDate "2000.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 Nc6 8. Qd2 0-0 9. Bc4 Bd7 10. h4 Rc8 11. Bb3 Ne5 12. 0-0-0 Nc4 13. Bxc4 Rxc4 14. h5 Nxh5 15. g4 Nf6 16. Nde2 Qa5 17. Bh6 Bh8 18. Qd3 Rfc8 19. Kb1 Be6 20. Nd5 Nxd5 21. exd5 Rxc2 0-1

[Event "DEN-ch corr"]
[Site "Denmark"]
[Date "1974.??.??"]
[Round "?"]
[White "Nielsen, Hartvig"]
[Black "Lund, Jens Christian"]
[Result "1/2-1/2"]
[ECO "C56"]
[PlyCount "94"]
[EventDate "1974.??.??"]
[EventType "tourn (corr)"]
[EventRounds "9"]
[EventCountry "DEN"]
[SourceTitle "Corr 2000"]
[Source "ChessBase"]
[SourceDate "2000.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Nf6 5. 0-0 Nxe4 6. Re1 d5 7. Bxd5 Qxd5 8. Nc3 Qa5 9. Nxe4 Be6 10. Neg5 0-0-0 11. Nxe6 fxe6 12. Rxe6 Bd6 13. Bg5 Rdf8 14. Qe2 Kd7 15. Re1 Qd5 16. Bh4 Rf5 17. Re8 Rhf8 18. Ng5 Re5 19. Rxe5 Qxe5 20. Bg3 Qxe2 21. Rxe2 h6 22. Ne4 Bxg3 23. hxg3 Rf5 24. g4 Rb5 25. b3 b6 26. f4 Rd5 27. Kf2 Ne7 28. g5 h5 29. Ng3 h4 30. Nh5 Nf5 31. g4 hxg3+ 32. Nxg3 Nd6 33. Kf3 c5 34. Kg4 b5 35. Re5 Rxe5 36. fxe5 Nf7 37. Kf5 Nd8 38. Ne4 Ne6 39. Nd6 a6 40. a3 Nf8 41. g6 Ne6 42. Ke4 Kc6 43. Ne8 c4 44. bxc4 bxc4 45. Nxg7 Nxg7 46. Kxd4 c3 47. Kxc3 Kc5 1/2-1/2

[Event "DEN-ch corr"]
[Site "Denmark"]
[Date "1974.??.??"]
[Round "?"]
[White "Nielsen, Hartvig"]
[Black "Nielsen, Axel"]
[Result "0-1"]
[ECO "C02"]
[PlyCount "56"]
[EventDate "1974.??.??"]
[EventType "tourn (corr)"]
[EventRounds "9"]
[EventCountry "DEN"]
[SourceTitle "Corr 2000"]
[Source "ChessBase"]
[SourceDate "2000.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Ne7 5. Nf3 Nbc6 6. Bd3 Nf5 7. dxc5 Bxc5 8. 0-0 0-0 9. Nbd2 Nh4 10. b4 Nxf3+ 11. Nxf3 Be7 12. b5 Na5 13. Re1 Nc4 14. Nd2 Qc7 15. Nxc4 dxc4 16. Bf1 Rd8 17. Qg4 Rd5 18. Bh6 g6 19. Re3 Rxb5 20. Bg5 h5 21. Qh4 Bxg5 22. Qxg5 Bd7 23. g4 hxg4 24. Qxg4 Rxe5 25. Rae1 Rxe3 26. Rxe3 b5 27. Bg2 Re8 28. Be4 e5 0-1

[Event "DEN-ch corr"]
[Site "Denmark"]
[Date "1974.??.??"]
[Round "?"]
[White "Nielsen, Hartvig"]
[Black "Rosenlund, Thorbjorn"]
[Result "1/2-1/2"]
[ECO "B16"]
[PlyCount "103"]
[EventDate "1974.??.??"]
[EventType "tourn (corr)"]
[EventRounds "9"]
[EventCountry "DEN"]
[SourceTitle "Corr 2000"]
[Source "ChessBase"]
[SourceDate "2000.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ gxf6 6. c3 Bf5 7. Ne2 Nd7 8. Ng3 Bg6 9. h4 h5 10. Be2 Qa5 11. b4 Qc7 12. a4 e5 13. Be3 Bd6 14. Rh3 0-0-0 15. Nxh5 exd4 16. Bxd4 Be5 17. g4 Nf8 18. Ng7 Rg8 19. h5 Rxg7 20. hxg6 Bxd4 21. cxd4 Nxg6 22. Bd3 Qe7+ 23. Kf1 Qxb4 24. Rb1 Qd6 25. Bf5+ Kc7 26. a5 Qd5 27. Qb3 Qxb3 28. Rhxb3 Rb8 29. d5 cxd5 30. a6 b6 31. Rc1+ Kd6 32. Rbc3 Ne7 33. Rc7 Nxf5 34. gxf5 Ra8 35. Ke2 Rg4 36. R1c6+ Ke5 37. Rxf7 Ra4 38. Rcxf6 Rxa6 39. Kf3 Re8 40. Rc6 Ra4 41. Kg3 Rf4 42. Rxa7 Rxf5 43. f3 Ref8 44. Ra3 R5f6 45. Rc1 b5 46. Rb1 Rb6 47. Rab3 Rfb8 48. f4+ Kd6 49. f5 Ke5 50. Re3+ Kxf5 51. Rf1+ Kg6 52. Re5 1/2-1/2

[Event "DEN-ch corr"]
[Site "Denmark"]
[Date "1974.??.??"]
[Round "?"]
[White "Rasmussen, Hans"]
[Black "Nielsen, Hartvig"]
[Result "1/2-1/2"]
[ECO "A05"]
[PlyCount "121"]
[EventDate "1974.??.??"]
[EventType "tourn (corr)"]
[EventRounds "9"]
[EventCountry "DEN"]
[SourceTitle "Corr 2000"]
[Source "ChessBase"]
[SourceDate "2000.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 b5 3. c3 e6 4. Qb3 a6 5. a4 Bb7 6. axb5 Bd5 7. Qd1 axb5 8. Rxa8 Bxa8 9. b4 c5 10. bxc5 Bxc5 11. Bg2 Qa5 12. Bb2 0-0 13. 0-0 d5 14. d4 Be7 15. Nbd2 Nc6 16. Qb3 Rb8 17. Ra1 Qd8 18. Qc2 Na5 19. Ne5 Nc4 20. Ndxc4 bxc4 21. Ba3 Bxa3 22. Rxa3 Nd7 23. Nxd7 Qxd7 24. Qa2 Bc6 25. Ra7 Qd8 26. Qa5 Rb6 27. Qa3 h5 28. h4 Rb3 29. Qc5 Bb7 30. Bf3 g6 31. e3 Kg7 32. Kg2 Kf6 33. e4 Kg7 34. e5 Rb2 35. Bd1 Qb6 36. Qxb6 Rxb6 37. Ra1 Rb2 38. Kf3 Rd2 39. Be2 Rc2 40. Ra3 Bc6 41. Ke3 Bb5 42. Bd1 Rb2 43. Ra8 Bc6 44. Ra7 Be8 45. Ra1 Bc6 46. f3 Rg2 47. Kf4 Rd2 48. Kg5 Rd3 49. Rc1 Re3 50. Kf4 Re1 51. Rb1 Ba4 52. Bc2 Rxb1 53. Bxb1 Bd1 54. Ke3 Kf8 55. Kf4 Kg7 56. g4 hxg4 57. fxg4 Kh6 58. Kg3 g5 59. Kh3 Ba4 60. Kg3 Bd1 61. Kh3 1/2-1/2

[Event "DEN-ch corr"]
[Site "Denmark"]
[Date "1974.??.??"]
[Round "?"]
[White "Sorensen, Arne"]
[Black "Nielsen, Hartvig"]
[Result "1-0"]
[ECO "A26"]
[PlyCount "47"]
[EventDate "1974.??.??"]
[EventType "tourn (corr)"]
[EventRounds "9"]
[EventCountry "DEN"]
[SourceTitle "Corr 2000"]
[Source "ChessBase"]
[SourceDate "2000.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 Nc6 3. Nf3 g6 4. d3 Bg7 5. g3 d6 6. Bg2 Nge7 7. 0-0 0-0 8. Rb1 a5 9. a3 f5 10. Bd2 Bd7 11. b4 axb4 12. axb4 Nd4 13. b5 c6 14. Qc1 d5 15. cxd5 Nxb5 16. Nxb5 cxb5 17. Ng5 Qb6 18. Qb2 Bf6 19. Qb3 Nc8 20. Ne6 Bxe6 21. dxe6 Kg7 22. Be3 Qa6 23. Rfc1 Bd8 24. Qd5 1-0

[Event "DEN-chT 7273"]
[Site "Denmark"]
[Date "1973.04.08"]
[Round "7.4"]
[White "Skovgaard, Ib"]
[Black "Nielsen, Hartvig"]
[Result "0-1"]
[ECO "C44"]
[PlyCount "34"]
[EventDate "1972.10.??"]
[EventType "team-tourn"]
[EventRounds "7"]
[EventCountry "DEN"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]
[WhiteTeam "Gentofte"]
[BlackTeam "KS"]
[WhiteTeamCountry "DEN"]
[BlackTeamCountry "DEN"]

1. e4 e5 2. Nf3 Nc6 3. c3 d5 4. Qa4 Bd7 5. exd5 Nb4 6. Qb3 e4 7. cxb4 exf3 8. gxf3 Qh4 9. Qe3+ Be7 10. Qe4 Qh5 11. d6 Bc6 12. d7+ Kd8 13. Qd4 Bf6 14. Qe3 Ne7 15. Be2 Nf5 16. Qf4 Nd4 17. Nc3 Be5 0-1

[Event "DEN-chT 7273"]
[Site "Denmark"]
[Date "1973.03.04"]
[Round "5.5"]
[White "Henriksen, Palle V"]
[Black "Nielsen, Hartvig"]
[Result "1-0"]
[ECO "A28"]
[PlyCount "109"]
[EventDate "1972.10.??"]
[EventType "team-tourn"]
[EventRounds "7"]
[EventCountry "DEN"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]
[WhiteTeam "Studenterforeningen"]
[BlackTeam "KS"]
[WhiteTeamCountry "DEN"]
[BlackTeamCountry "DEN"]

1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 d5 6. cxd5 Nxd5 7. Nxc6 bxc6 8. e4 Nxc3 9. Qxd8+ Kxd8 10. bxc3 Bc5 11. Bc4 Ke7 12. Bf4 Bb6 13. Ke2 Be6 14. Bxe6 Kxe6 15. Rhd1 Rhd8 16. Rxd8 Rxd8 17. Rb1 Ba5 18. Rb3 g6 19. Be3 Bb6 20. c4 Bxe3 21. Kxe3 Rd1 22. Ra3 Re1+ 23. Kf3 Rc1 24. Rxa7 Rc3+ 25. Ke2 Rxc4 26. Kd3 Rc1 27. Rxc7 h5 28. h4 Rd1+ 29. Ke2 Rc1 30. a4 Rc4 31. Ke3 Rxa4 32. Rxc6+ Ke7 33. f3 Ra5 34. Kf4 f6 35. Rc7+ Kf8 36. Rd7 Kg8 37. Rb7 Ra4 38. Rc7 Ra2 39. g3 Ra5 40. Rd7 g5+ 41. hxg5 fxg5+ 42. Ke3 Ra3+ 43. Rd3 Ra6 44. Rd5 Rg6 45. f4 gxf4+ 46. gxf4 Rh6 47. Kf3 h4 48. Rd2 Kf7 49. Rh2 h3 50. Kg4 Re6 51. e5 Rg6+ 52. Kxh3 Ke6 53. Rg2 Rh6+ 54. Kg4 Rh8 55. Kf3 1-0

[Event "DEN-ch corr"]
[Site "Denmark"]
[Date "1973.??.??"]
[Round "?"]
[White "Madsen, Peder"]
[Black "Nielsen, Hartvig"]
[Result "1/2-1/2"]
[ECO "A56"]
[PlyCount "84"]
[EventDate "1973.??.??"]
[EventType "tourn (corr)"]
[EventRounds "8"]
[EventCountry "DEN"]
[SourceTitle "Corr 2000"]
[Source "ChessBase"]
[SourceDate "2000.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 c5 4. e3 Be7 5. d5 d6 6. f4 exd5 7. cxd5 0-0 8. Bd3 Ng4 9. Nf3 f5 10. 0-0 a6 11. a4 b6 12. h3 Nh6 13. Nd2 Nd7 14. g4 g5 15. Nc4 fxg4 16. hxg4 Nf7 17. Kg2 Nf6 18. Rh1 h5 19. Bc2 Bxg4 20. Qd3 gxf4 21. Ne4 Bf3+ 22. Kxf3 Nxe4 23. exf4 Qd7 24. Rg1+ Nfg5+ 25. Ke2 Rae8 26. fxg5 Rf2+ 27. Ke1 Bf8 28. Nxb6 Qf5 29. Be3 Rh2 30. Kd1 Bg7 31. Kc1 h4 32. Rf1 Qg4 33. Nc4 h3 34. Bf4 Rg2 35. Ne3 Qh5 36. Nxg2 hxg2 37. Rg1 c4 38. Qd1 Bxb2+ 39. Kxb2 Qh8+ 40. Ka3 Qh3+ 41. Bb3 Rb8 42. Rb1 Nc3 1/2-1/2

[Event "DEN-ch corr"]
[Site "Denmark"]
[Date "1973.??.??"]
[Round "?"]
[White "Nielsen, Axel"]
[Black "Nielsen, Hartvig"]
[Result "1-0"]
[ECO "A48"]
[PlyCount "111"]
[EventDate "1973.??.??"]
[EventType "tourn (corr)"]
[EventRounds "8"]
[EventCountry "DEN"]
[SourceTitle "Corr 2000"]
[Source "ChessBase"]
[SourceDate "2000.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. e3 Bg7 4. Bd3 d6 5. Nbd2 0-0 6. 0-0 Nc6 7. e4 e5 8. c3 Nh5 9. Nb3 Bg4 10. Be3 Nf4 11. Bxf4 exf4 12. Re1 Bh5 13. Be2 g5 14. Nfd2 Bg6 15. Bh5 Ne7 16. Qf3 a5 17. Rad1 b5 18. Nc1 b4 19. Nc4 Qd7 20. cxb4 axb4 21. d5 Rfe8 22. Bxg6 Nxg6 23. Qd3 Kh8 24. Re2 g4 25. Rc2 Nh4 26. a3 bxa3 27. bxa3 f5 28. exf5 Nxf5 29. Ne2 f3 30. Ng3 Nd4 31. Ra2 Qf7 32. Ne3 c5 33. a4 fxg2 34. a5 Qf3 35. Rb1 h5 36. Qg6 Rxe3 37. fxe3 Qxe3+ 38. Kxg2 Qf3+ 39. Kg1 Rf8 40. Qe4 Ne2+ 41. Rxe2 Bd4+ 42. Qxd4+ cxd4 43. Rf1 h4 44. Rxf3 gxf3 45. Ra2 hxg3 46. hxg3 d3 47. Kf2 Rc8 48. Kxf3 Rc2 49. Ra4 Kg7 50. Ke3 d2 51. Ke2 d1Q+ 52. Kxd1 Rc5 53. a6 Rxd5+ 54. Ke2 Re5+ 55. Kd3 Re8 56. a7 1-0

[Event "DEN-ch corr"]
[Site "Denmark"]
[Date "1973.??.??"]
[Round "?"]
[White "Nielsen, Hartvig"]
[Black "Gallmeyer, Peter"]
[Result "0-1"]
[ECO "E98"]
[PlyCount "82"]
[EventDate "1973.??.??"]
[EventType "tourn (corr)"]
[EventRounds "8"]
[EventCountry "DEN"]
[SourceTitle "Corr 2000"]
[Source "ChessBase"]
[SourceDate "2000.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 g6 3. e4 d6 4. d4 Bg7 5. Nf3 0-0 6. Be2 e5 7. 0-0 Nc6 8. d5 Ne7 9. Bd2 Ne8 10. Ne1 f5 11. Nd3 f4 12. f3 g5 13. c5 Ng6 14. Rc1 h5 15. h3 Rf7 16. b4 Bf8 17. c6 b6 18. a4 a6 19. Nf2 Rg7 20. Ra1 Nf6 21. Be1 Nh8 22. a5 b5 23. Qd3 Nf7 24. Kh2 g4 25. fxg4 hxg4 26. hxg4 Nh6 27. Rh1 Nhxg4+ 28. Nxg4 Nxg4+ 29. Bxg4 Bxg4 30. Kg1 Qg5 31. Ra2 Be7 32. Nd1 Rf8 33. Rh2 Rff7 34. Nf2 Bc8 35. Nh1 Qg6 36. g3 f3 37. Raf2 Qg4 38. Rh6 Bg5 39. Rhh2 Bh4 40. Qe3 Bxg3 41. Nxg3 Qxg3+ 0-1

[Event "DEN-ch corr"]
[Site "Denmark"]
[Date "1973.??.??"]
[Round "?"]
[White "Nielsen, Hartvig"]
[Black "Korning, Peter"]
[Result "1-0"]
[ECO "A21"]
[PlyCount "53"]
[EventDate "1973.??.??"]
[EventType "tourn (corr)"]
[EventRounds "8"]
[EventCountry "DEN"]
[SourceTitle "Corr 2000"]
[Source "ChessBase"]
[SourceDate "2000.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 d6 3. g3 f5 4. Bg2 Nf6 5. d4 e4 6. f3 exf3 7. Nxf3 g6 8. 0-0 Bg7 9. e4 fxe4 10. Bg5 exf3 11. Qe1+ Kf7 12. Rxf3 Rf8 13. Nd5 Kg8 14. Qf2 Nbd7 15. Rf1 h6 16. Nxf6+ Nxf6 17. Bxf6 Bxf6 18. Rxf6 Rxf6 19. Qxf6 Qxf6 20. Rxf6 Kg7 21. Rf3 Be6 22. Ra3 c6 23. Rb3 Bc8 24. a4 Kf6 25. a5 a6 26. Rb6 Ke7 27. b4 1-0

[Event "DEN-ch corr"]
[Site "Denmark"]
[Date "1973.??.??"]
[Round "?"]
[White "Nielsen, Hartvig"]
[Black "Lund, Jens Christian"]
[Result "1-0"]
[ECO "E98"]
[PlyCount "57"]
[EventDate "1973.??.??"]
[EventType "tourn (corr)"]
[EventRounds "8"]
[EventCountry "DEN"]
[SourceTitle "Corr 2000"]
[Source "ChessBase"]
[SourceDate "2000.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 g6 3. e4 d6 4. d4 Bg7 5. Nf3 0-0 6. Be2 e5 7. 0-0 Nc6 8. d5 Ne7 9. Bd2 Ne8 10. Ne1 f5 11. Nd3 fxe4 12. Nxe4 Nf5 13. Bg5 Nf6 14. g4 Nd4 15. f4 Qe8 16. Bxf6 Bxf6 17. Nxf6+ Rxf6 18. fxe5 Rxf1+ 19. Qxf1 dxe5 20. Qf2 b5 21. Rf1 bxc4 22. Nc5 Qe7 23. Bxc4 Kg7 24. d6 cxd6 25. Qg2 Qh4 26. Rf7+ Kh6 27. Ne4 g5 28. Nf2 Rb8 29. Bd3 1-0

[Event "DEN-ch corr"]
[Site "Denmark"]
[Date "1973.??.??"]
[Round "?"]
[White "Nielsen, Hartvig"]
[Black "Nielsen, Borge"]
[Result "1-0"]
[ECO "A27"]
[PlyCount "111"]
[EventDate "1973.??.??"]
[EventType "tourn (corr)"]
[EventRounds "8"]
[EventCountry "DEN"]
[SourceTitle "Corr 2000"]
[Source "ChessBase"]
[SourceDate "2000.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 Nc6 3. Nf3 d6 4. d4 exd4 5. Nxd4 g6 6. Nxc6 bxc6 7. g3 Bg7 8. Bg2 Ne7 9. 0-0 Be6 10. Qa4 Qd7 11. Bg5 f6 12. Bd2 Bh3 13. Bxh3 Qxh3 14. Nd5 Qd7 15. Nxe7 Kxe7 16. Bc3 h5 17. h4 c5 18. Qa5 Rhe8 19. Rad1 Qc6 20. b4 cxb4 21. Bxb4 Kf7 22. c5 d5 23. e3 Re4 24. Rd4 Rae8 25. Rfd1 Rxd4 26. Rxd4 f5 27. Rd3 Re4 28. Ba3 Ra4 29. Qd2 Ke6 30. Qd1 Ra5 31. Rb3 Qa6 32. Qc1 Qc4 33. Qb1 Qa6 34. Qc1 Be5 35. c6 Qc4 36. Qd2 Ra6 37. e4 fxe4 38. Qh6 Qxc6 39. Qxg6+ Bf6 40. Bb2 Kd7 41. Qf7+ Be7 42. Rb8 Qe6 43. Qe8+ Kd6 44. a4 Rb6 45. Ba3+ c5 46. Rc8 Ke5 47. Qxh5+ Qf5 48. Qxf5+ Kxf5 49. Kg2 Rb3 50. Bc1 c4 51. h5 c3 52. h6 Bf6 53. Rf8 Rb7 54. g4+ Ke6 55. g5 d4 56. Rxf6+ 1-0

[Event "DEN-ch corr"]
[Site "Denmark"]
[Date "1973.??.??"]
[Round "?"]
[White "Quist, Viggo Bove"]
[Black "Nielsen, Hartvig"]
[Result "0-1"]
[ECO "A28"]
[PlyCount "54"]
[EventDate "1973.??.??"]
[EventType "tourn (corr)"]
[EventRounds "8"]
[EventCountry "DEN"]
[SourceTitle "Corr 2000"]
[Source "ChessBase"]
[SourceDate "2000.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 e5 3. e3 Nc6 4. Nf3 Bb4 5. Qc2 0-0 6. Be2 Re8 7. 0-0 e4 8. Ne1 Bxc3 9. bxc3 d6 10. f3 Bf5 11. fxe4 Bxe4 12. d3 Bg6 13. e4 h6 14. Nf3 Qe7 15. Nh4 Bxe4 16. Re1 Bh7 17. Nf3 Ne5 18. Rb1 Bxd3 19. Bxd3 Nxf3+ 20. gxf3 Qxe1+ 21. Kg2 Qh4 22. Rxb7 Nh5 23. Rxc7 Nf4+ 24. Bxf4 Qxf4 25. Qf2 Re5 26. h4 g5 27. h5 g4 0-1

[Event "DEN-ch corr"]
[Site "Denmark"]
[Date "1973.??.??"]
[Round "?"]
[White "Vester, Finn"]
[Black "Nielsen, Hartvig"]
[Result "1/2-1/2"]
[ECO "E19"]
[PlyCount "100"]
[EventDate "1973.??.??"]
[EventType "tourn (corr)"]
[EventRounds "8"]
[EventCountry "DEN"]
[SourceTitle "Corr 2000"]
[Source "ChessBase"]
[SourceDate "2000.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. Nf3 Nf6 2. d4 e6 3. c4 b6 4. g3 Bb7 5. Bg2 Be7 6. 0-0 0-0 7. Nc3 Ne4 8. Qc2 Nxc3 9. Qxc3 c5 10. Rd1 d6 11. Qc2 Nc6 12. e3 Bf6 13. b3 Qe7 14. Bb2 Rfd8 15. Rac1 Rac8 16. Qb1 cxd4 17. exd4 Rc7 18. d5 Nb4 19. Nd4 Bxd4 20. Rxd4 e5 21. Rh4 g6 22. f4 f6 23. fxe5 fxe5 24. Be4 Qg5 25. Re1 Rf7 26. Bc1 Qf6 27. Be3 Na6 28. Rh6 Kg7 29. h4 Nc5 30. Bxg6 hxg6 31. h5 Qf5 32. Rxg6+ Kh7 33. Qxf5 Rxf5 34. g4 Rf7 35. g5 Bc8 36. Bxc5 bxc5 37. Rxd6 Rxd6 38. g6+ Rxg6+ 39. hxg6+ Kxg6 40. Rxe5 Kf6 41. Re8 Bf5 42. Kf2 Bb1 43. Ke3 Rh7 44. Rc8 Ke5 45. Re8+ Kf5 46. Rf8+ Kg5 47. Rc8 Rh3+ 48. Kd2 Kf4 49. Rxc5 Ke5 50. d6+ Kxd6 1/2-1/2

[Event "DEN-ch corr"]
[Site "Denmark"]
[Date "1971.??.??"]
[Round "?"]
[White "Berggreen, Anders J"]
[Black "Nielsen, Hartvig"]
[Result "0-1"]
[ECO "E56"]
[PlyCount "118"]
[EventDate "1971.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "DEN"]
[SourceTitle "Corr 2000"]
[Source "ChessBase"]
[SourceDate "2000.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 0-0 5. Bd3 c5 6. Nf3 d5 7. 0-0 Nc6 8. a3 dxc4 9. Bxc4 Ba5 10. Qd3 a6 11. Ne4 cxd4 12. exd4 Nxe4 13. Qxe4 f5 14. Qd3 b5 15. Ba2 Ne7 16. Bg5 h6 17. Bxe7 Qxe7 18. d5 Qd6 19. b4 Bc7 20. Rac1 Bb7 21. Rfd1 Bxd5 22. Bxd5 exd5 23. Qxd5+ Qxd5 24. Rxd5 Rad8 25. Rcd1 Kf7 26. Ne5+ Ke8 27. Rxd8+ Bxd8 28. Re1 Rg8 29. g3 Ke7 30. Nd3+ Kd6 31. Nc5 a5 32. Rd1+ Kc6 33. Ne6 Bf6 34. bxa5 Rb8 35. a6 Ra8 36. Rc1+ Kb6 37. Nc7 Ra7 38. Nd5+ Ka5 39. Nxf6 gxf6 40. Kg2 Rxa6 41. Kf3 Re6 42. Rc5 Ka4 43. Rc3 Re1 44. Kf4 Ra1 45. Kxf5 Rxa3 46. Rc2 b4 47. Kxf6 b3 48. Rc8 b2 49. Ra8+ Kb3 50. Rb8+ Kc2 51. Rxb2+ Kxb2 52. Kg7 Kc3 53. Kxh6 Kd4 54. h4 Ke5 55. Kg6 Ra6+ 56. Kg7 Kf5 57. h5 Kg5 58. g4 Ra7+ 59. Kg8 Kh6 0-1

[Event "DEN-ch corr"]
[Site "Denmark"]
[Date "1971.??.??"]
[Round "?"]
[White "Korning, Peter"]
[Black "Nielsen, Hartvig"]
[Result "1-0"]
[ECO "E66"]
[PlyCount "105"]
[EventDate "1971.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "DEN"]
[SourceTitle "Corr 2000"]
[Source "ChessBase"]
[SourceDate "2000.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 d6 3. g3 g6 4. Bg2 Bg7 5. 0-0 0-0 6. c4 Nc6 7. Nc3 Rb8 8. d5 Na5 9. Nd2 c5 10. Qc2 a6 11. b3 b5 12. Bb2 e5 13. Rae1 Bh6 14. f4 exf4 15. gxf4 bxc4 16. bxc4 Nh5 17. e3 f5 18. Nd1 Bd7 19. Bc3 Nb7 20. Nf2 Bg7 21. Bxg7 Nxg7 22. Qc3 h6 23. Nd3 Qc7 24. Rb1 Rbe8 25. Rfe1 Bc8 26. Rb2 Nd8 27. Nf1 Nf7 28. Bf3 Qd8 29. Ree2 g5 30. Rg2 g4 31. Bd1 h5 32. Nf2 Nh6 33. Nh3 Rf6 34. Ng5 Rg6 35. Rb8 h4 36. Rgb2 g3 37. hxg3 hxg3 38. Rg2 Nf7 39. Nf3 Qe7 40. Rxg3 Rxg3+ 41. Nxg3 Bd7 42. Rxe8+ Nxe8 43. Nh5 Nh6 44. Ng5 Nf7 45. Nxf7 Kxf7 46. Bf3 Kg8 47. Kg2 Ng7 48. Qf6 Qf7 49. Qg5 Be8 50. e4 fxe4 51. Nf6+ Kf8 52. Nh7+ Kg8 53. Bxe4 1-0

[Event "DEN-ch corr"]
[Site "Denmark"]
[Date "1971.??.??"]
[Round "?"]
[White "Madsen, Peder"]
[Black "Nielsen, Hartvig"]
[Result "0-1"]
[ECO "C79"]
[PlyCount "104"]
[EventDate "1971.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "DEN"]
[SourceTitle "Corr 2000"]
[Source "ChessBase"]
[SourceDate "2000.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. c3 Bd7 6. d4 Nf6 7. 0-0 g6 8. dxe5 dxe5 9. Bg5 h6 10. Bh4 Qe7 11. Bxf6 Qxf6 12. c4 0-0-0 13. Nfd2 Nd4 14. Bxd7+ Rxd7 15. Nc3 c6 16. Nb3 Ne6 17. Qc2 Qg5 18. Na4 Rd8 19. Rad1 Be7 20. Rxd8+ Rxd8 21. Rd1 Nd4 22. Nxd4 exd4 23. c5 Qe5 24. g3 f5 25. f3 f4 26. g4 h5 27. gxh5 Qxh5 28. Rd3 g5 29. Qg2 Kb8 30. b4 Qf7 31. a3 Qc4 32. Qd2 Bf6 33. Nb2 Qa2 34. Nd1 Qxd2 35. Rxd2 a5 36. Nf2 Ka7 37. Nd3 Ka6 38. a4 axb4 39. Rb2 Be7 40. Nxb4+ Ka5 41. Nd3 Rd7 42. Kg2 Kxa4 43. Kh3 b5 44. cxb6 Rb7 45. Ne5 Ba3 46. Rb1 c5 47. Kg4 Bb4 48. Nc4 Rb8 49. b7 Kb5 50. Nd6+ Kc6 51. e5 Kd5 52. Ra1 c4 0-1

[Event "DEN-ch corr"]
[Site "Denmark"]
[Date "1971.??.??"]
[Round "?"]
[White "Nielsen, Hartvig"]
[Black "Gallmeyer, Peter"]
[Result "1-0"]
[ECO "B09"]
[PlyCount "25"]
[EventDate "1971.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "DEN"]
[SourceTitle "Corr 2000"]
[Source "ChessBase"]
[SourceDate "2000.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 g6 2. d4 Bg7 3. Nc3 d6 4. f4 Nf6 5. Nf3 c5 6. Bb5+ Bd7 7. e5 Ng4 8. e6 Bxb5 9. exf7+ Kxf7 10. Ng5+ Kg8 11. Nxb5 Nh6 12. dxc5 d5 13. c3 1-0

[Event "DEN-ch corr"]
[Site "Denmark"]
[Date "1971.??.??"]
[Round "?"]
[White "Nielsen, Hartvig"]
[Black "Nielsen, Axel"]
[Result "1/2-1/2"]
[ECO "B06"]
[PlyCount "65"]
[EventDate "1971.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "DEN"]
[SourceTitle "Corr 2000"]
[Source "ChessBase"]
[SourceDate "2000.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 g6 2. d4 Bg7 3. Nc3 d6 4. f4 Nd7 5. Be3 b6 6. Nf3 Bb7 7. Bc4 e6 8. 0-0 Ne7 9. e5 0-0 10. Ne2 Nd5 11. Qd2 c5 12. c3 Qc7 13. Rac1 f6 14. exd6 Qxd6 15. f5 b5 16. Bxd5 Bxd5 17. fxg6 hxg6 18. dxc5 Nxc5 19. Nf4 Rfd8 20. Nxd5 Qxd5 21. Qc2 Nd3 22. Rcd1 e5 23. Ne1 Nxe1 24. Rfxe1 Qf7 25. a3 a6 26. Qe4 f5 27. Qf3 Rac8 28. Bg5 Bf6 29. Qg3 e4 30. Qf4 Kg7 31. Bh6+ Kh7 32. Bg5 Kg7 33. Bh6+ 1/2-1/2

[Event "DEN-ch corr"]
[Site "Denmark"]
[Date "1971.??.??"]
[Round "?"]
[White "Nielsen, Hartvig"]
[Black "Pedersen, Jens Otto"]
[Result "0-1"]
[ECO "C56"]
[PlyCount "74"]
[EventDate "1971.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "DEN"]
[SourceTitle "Corr 2000"]
[Source "ChessBase"]
[SourceDate "2000.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d4 exd4 5. 0-0 Nxe4 6. Re1 d5 7. Bxd5 Qxd5 8. Nc3 Qa5 9. Nxe4 Be6 10. Neg5 0-0-0 11. Nxe6 fxe6 12. Rxe6 Bd6 13. Bg5 Rde8 14. Qe2 Kd7 15. Re1 Qxe1+ 16. Nxe1 Rxe6 17. Qg4 Rhe8 18. Kf1 Kc8 19. g3 h5 20. Qh3 Kb8 21. Nd3 g6 22. Bf4 a6 23. Bxd6 Rxd6 24. Qh4 b6 25. Qf4 Ree6 26. h4 Rf6 27. Qd2 Rf5 28. Qe2 Rb5 29. Kg2 Ka7 30. a4 Rf5 31. f4 Rff6 32. b4 Rfe6 33. Qd2 Re3 34. b5 Ne7 35. bxa6 Nf5 36. a5 Rc6 37. axb6+ cxb6 0-1

[Event "DEN-ch corr"]
[Site "Denmark"]
[Date "1971.??.??"]
[Round "?"]
[White "Nielsen, Hartvig"]
[Black "Rasmussen, Hans"]
[Result "0-1"]
[ECO "B44"]
[PlyCount "76"]
[EventDate "1971.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "DEN"]
[SourceTitle "Corr 2000"]
[Source "ChessBase"]
[SourceDate "2000.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e6 5. Nb5 d6 6. Bf4 e5 7. Be3 a6 8. N5c3 Nf6 9. Nd5 Nxd5 10. exd5 Ne7 11. c4 Nf5 12. Bd2 Be7 13. Bd3 0-0 14. Nc3 Bg5 15. 0-0 Bxd2 16. Qxd2 Nh6 17. b4 f5 18. c5 Qh4 19. f4 Bd7 20. Ne2 Rac8 21. c6 bxc6 22. Bxa6 Rb8 23. a4 Rf6 24. Bc4 Kh8 25. a5 Rg6 26. g3 Qd8 27. dxc6 Bxc6 28. Bd5 Bxd5 29. Qxd5 Ng4 30. Rfb1 Qe7 31. fxe5 Qa7+ 32. Qd4 Qa8 33. exd6 Nxh2 34. Qf4 Nf3+ 35. Kf2 Ng5 36. Ke1 Re6 37. d7 Qh1+ 38. Qf1 Nf3+ 0-1

[Event "DEN-ch corr"]
[Site "Denmark"]
[Date "1971.??.??"]
[Round "?"]
[White "Nielsen, Hartvig"]
[Black "Sogaard, Ove"]
[Result "0-1"]
[ECO "B04"]
[PlyCount "100"]
[EventDate "1971.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "DEN"]
[SourceTitle "Corr 2000"]
[Source "ChessBase"]
[SourceDate "2000.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 g6 5. Bc4 Nb6 6. Bb3 Bg7 7. 0-0 0-0 8. a4 a5 9. h3 Nc6 10. Qe2 d5 11. Nc3 Be6 12. Bf4 Qd7 13. Rad1 Nd8 14. Rfe1 c6 15. Ba2 Rc8 16. Nd2 c5 17. b3 Bf5 18. dxc5 Ne6 19. Be3 Bxc2 20. Rc1 d4 21. Nf3 d3 22. Qd2 Nxc5 23. Bxc5 Rxc5 24. Ne4 Rc6 25. Qxa5 Bh6 26. Ra1 Rd8 27. Ned2 Nd5 28. b4 b6 29. Qxd5 Qxd5 30. Bxd5 Rxd5 31. a5 b5 32. Re3 Ba4 33. Ra3 Rc1+ 34. Kh2 Bf4+ 35. g3 Bxe3 36. fxe3 f5 37. exf6 exf6 38. Kg2 f5 39. g4 fxg4 40. hxg4 Rc2 41. a6 Rc6 42. Nd4 Rxa6 43. N2f3 Ra7 44. Rxd3 Rc7 45. Rd2 Rc4 46. Rb2 Bd1 47. Rb1 Bxf3+ 48. Kxf3 Rdxd4 49. exd4 Rxd4 50. g5 h6 0-1

[Event "DEN-ch corr"]
[Site "Denmark"]
[Date "1971.??.??"]
[Round "?"]
[White "Nielsen, Jorgen Grotum"]
[Black "Nielsen, Hartvig"]
[Result "1/2-1/2"]
[ECO "A15"]
[PlyCount "118"]
[EventDate "1971.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "DEN"]
[SourceTitle "Corr 2000"]
[Source "ChessBase"]
[SourceDate "2000.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 g6 3. b4 Bg7 4. Bb2 d5 5. Bg2 0-0 6. c4 c6 7. Na3 Na6 8. Rb1 Nc7 9. d3 e6 10. 0-0 Qe7 11. Qb3 Nfe8 12. Bxg7 Nxg7 13. Qc3 Bd7 14. Nc2 dxc4 15. Qxc4 Rfd8 16. d4 Nf5 17. Ne5 Be8 18. e3 f6 19. Nd3 Nd6 20. Qb3 Bf7 21. Qb2 g5 22. a4 Bg6 23. Rfd1 a6 24. Rbc1 h5 25. Na3 h4 26. g4 h3 27. Bh1 Nf7 28. Nc5 Nd5 29. e4 Nf4 30. Nc4 e5 31. dxe5 Nxe5 32. Nxe5 fxe5 33. a5 Rd4 34. Rxd4 exd4 35. Bf3 Rd8 36. Rd1 d3 37. Qc3 Rf8 38. Rd2 Qg7 39. Qxg7+ Kxg7 40. Bd1 Bf7 41. f3 Bc4 42. Ba4 Ng6 43. Kf2 Ne5 44. Ke3 Rxf3+ 45. Kd4 Kf6 46. Nxb7 Rf4 47. Bd1 Bb5 48. Nd6 Ke6 49. Nf5 Nxg4 50. Bxg4 Rxg4 51. Ng3 Rf4 52. Nh1 g4 53. Nf2 Kf6 54. Nh1 Kg5 55. Ng3 Rf3 56. Ra2 Rf8 57. Ke3 Bc4 58. Rd2 Rb8 59. Rf2 Rxb4 1/2-1/2

[Event "DEN-ch corr"]
[Site "Denmark"]
[Date "1971.??.??"]
[Round "?"]
[White "Paldan, Willy"]
[Black "Nielsen, Hartvig"]
[Result "1/2-1/2"]
[ECO "E56"]
[PlyCount "98"]
[EventDate "1971.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "DEN"]
[SourceTitle "Corr 2000"]
[Source "ChessBase"]
[SourceDate "2000.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 0-0 5. Bd3 c5 6. Nf3 d5 7. 0-0 Nc6 8. a3 dxc4 9. Bxc4 Ba5 10. Na4 cxd4 11. exd4 a6 12. Bd3 Ne7 13. Bg5 Ned5 14. Rc1 h6 15. Bh4 Nf4 16. Bb1 Bd7 17. Nc5 Bc6 18. Be4 Bxe4 19. Nxe4 g5 20. Nxf6+ Qxf6 21. Bg3 Rad8 22. Bxf4 Qxf4 23. Qb3 g4 24. Nh4 Bd2 25. Rc2 b5 26. g3 Qxd4 27. Rc6 Rd6 28. Rxd6 Qxd6 29. a4 Qb4 30. Qc2 Bg5 31. axb5 axb5 32. Rd1 Rd8 33. Rxd8+ Bxd8 34. Qc8 Qd4 35. Qc2 Bf6 36. b3 Qc3 37. Qd1 Qa1 38. Qxa1 Bxa1 39. Ng2 f5 40. Ne3 Kf7 41. Nc2 Bb2 42. h3 h5 43. hxg4 hxg4 44. f3 Kf6 45. fxg4 fxg4 46. Kf2 e5 47. Ke2 Bc1 48. Kd1 Bh6 49. b4 Bf8 1/2-1/2

[Event "DEN-chT 7071"]
[Site "Denmark"]
[Date "1970.10.04"]
[Round "1.6"]
[White "Henriksen, Palle V"]
[Black "Nielsen, Hartvig"]
[Result "1-0"]
[ECO "E32"]
[PlyCount "120"]
[EventDate "1970.10.??"]
[EventType "team-tourn"]
[EventRounds "7"]
[EventCountry "DEN"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 0-0 5. a3 Bxc3+ 6. Qxc3 d6 7. Bg5 Nbd7 8. Nf3 h6 9. Bh4 g5 10. Bg3 Ne4 11. Qc2 f5 12. e3 b6 13. Nd2 Ndf6 14. f3 Nxg3 15. hxg3 Kg7 16. 0-0-0 c5 17. dxc5 bxc5 18. e4 Rf7 19. exf5 exf5 20. Bd3 Ne8 21. Nf1 Rb8 22. Ne3 Rfb7 23. Nd5 Rxb2 24. Qc3+ Nf6 25. Nxf6 Qxf6 26. Qxf6+ Kxf6 27. Rxh6+ Ke5 28. Re1+ Kd4 29. Rxd6+ Kc3 30. f4 Ra2 31. Bb1 Ra1 32. Rd3+ Kxc4 33. Kc2 Ba6 34. Rc3+ Kd5 35. Rb3 Rxb3 36. Kxb3 Bd3 37. Re5+ Kd4 38. Bxd3 gxf4 39. gxf4 Kxd3 40. Rxc5 Rb1+ 41. Ka4 Ke4 42. g3 Rg1 43. Re5+ Kd4 44. Rxf5 Rxg3 45. Rf7 Rf3 46. Kb4 Ke4 47. Rxa7 Rxf4 48. Rd7 Ke5+ 49. Kb5 Ke6 50. Rd1 Rf5+ 51. Kb6 Rf4 52. Kb5 Rf5+ 53. Kc6 Ra5 54. Re1+ Kf5 55. Ra1 Ra4 56. Kb5 Rd4 57. Re1 Rd5+ 58. Kc4 Ra5 59. Kb4 Ra6 60. a4 Re6 1-0

[Event "corr"]
[Site "corr"]
[Date "1969.??.??"]
[Round "?"]
[White "Nielsen, Hartvig"]
[Black "Halasz, Gyoergy"]
[Result "1-0"]
[ECO "C40"]
[PlyCount "81"]
[EventDate "1969.??.??"]
[EventType "tourn (corr)"]
[EventRounds "9"]
[SourceTitle "Corr 2000"]
[Source "ChessBase"]
[SourceDate "2000.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 d5 3. exd5 Bd6 4. d4 e4 5. Ne5 Nf6 6. Bb5+ Bd7 7. Nxd7 Nbxd7 8. c4 a6 9. Ba4 b5 10. cxb5 Nxd5 11. Nc3 Nxc3 12. bxc3 0-0 13. Qe2 Nb6 14. Bb3 Kh8 15. bxa6 f5 16. g3 f4 17. a4 f3 18. Qb5 Qc8 19. a5 Rxa6 20. Be6 Rxa5 21. Rxa5 Qxe6 22. Be3 Rb8 23. d5 Qh3 24. Bxb6 cxb6 25. Ra4 e3 26. Re4 Qg2 27. Qf1 exf2+ 28. Kd2 b5 29. Kd3 b4 30. cxb4 Bxb4 31. Rc4 Kg8 32. Rc2 Be1 33. Kd4 Rd8 34. Ra2 h5 35. Ra6 Bb4 36. Kc4 Be1 37. d6 h4 38. Kc5 Qxf1 39. Rxf1 hxg3 40. hxg3 Kf7 41. Ra7+ 1-0

[Event "DEN-chT 6566"]
[Site "Denmark"]
[Date "1966.01.30"]
[Round "7.8"]
[White "Nielsen, Hartvig"]
[Black "Briem, Stefan"]
[Result "1/2-1/2"]
[ECO "C63"]
[PlyCount "81"]
[EventDate "1965.09.??"]
[EventType "team-tourn"]
[EventRounds "7"]
[EventCountry "DEN"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]
[WhiteTeam "Kampklubben"]
[BlackTeam "Nordre"]
[WhiteTeamCountry "DEN"]
[BlackTeamCountry "DEN"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 f5 4. Nc3 Nd4 5. Bc4 c6 6. Nxe5 Qf6 7. Nf3 fxe4 8. Nxd4 Qxd4 9. Bxg8 Rxg8 10. Qh5+ g6 11. Qe2 d5 12. d3 Bb4 13. Bd2 Kf7 14. dxe4 Bxc3 15. Bxc3 Qxe4 16. Qxe4 dxe4 17. Ke2 Bg4+ 18. Ke3 Rad8 19. b3 Rd5 20. h3 Bf5 21. g4 Be6 22. f3 exf3 23. Rhf1 h5 24. Rxf3+ Ke8 25. Re1 Kd7 26. Rf4 Re8 27. Re4 hxg4 28. hxg4 Rg5 29. Rd1+ Ke7 30. Rf4 Rd5 31. Rxd5 Bxd5 32. g5 Kd6+ 33. Kd2 Be4 34. Rf6+ Kc5 35. a3 Bf5 36. Rf7 Kb6 37. Bd4+ Ka6 38. c4 Re4 39. Be3 Rg4 40. Re7 b6 41. Kc3 1/2-1/2

[Event "DEN-chT 6364"]
[Site "Denmark"]
[Date "1964.02.02"]
[Round "7.6"]
[White "Henriksen, Palle V"]
[Black "Nielsen, Hartvig"]
[Result "0-1"]
[ECO "E23"]
[PlyCount "80"]
[EventDate "1963.09.??"]
[EventType "team-tourn"]
[EventRounds "7"]
[EventCountry "DEN"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]
[WhiteTeam "Studenterforeningen"]
[BlackTeam "Kampklubben"]
[WhiteTeamCountry "DEN"]
[BlackTeamCountry "DEN"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qb3 c5 5. dxc5 Nc6 6. Nf3 Ne4 7. Bd2 Nxd2 8. Nxd2 f5 9. e3 0-0 10. Be2 Bxc5 11. 0-0 b6 12. a3 f4 13. exf4 Nd4 14. Qd1 Rxf4 15. Nde4 Bb7 16. Bd3 d5 17. Nxc5 bxc5 18. Ne2 Rh4 19. Nxd4 Rxd4 20. Qe2 Qf6 21. Rad1 e5 22. cxd5 Bxd5 23. f3 Rd8 24. Qc2 Qh6 25. Rfe1 c4 26. Bf5 Bf7 27. Qe2 Qf4 28. Bh3 Rd2 29. Rxd2 Rxd2 30. Qxe5 Qxe5 31. Rxe5 Rxb2 32. Rc5 g6 33. Kf1 Kg7 34. Rc7 Kf6 35. Rxa7 c3 36. Rc7 c2 37. Ke1 Bb3 38. Kd2 Ra2 39. Rxh7 Ra1 40. Rc7 Rd1+ 0-1

[Event "DEN Team-ch 1963/64"]
[Site "Denmark"]
[Date "1963.??.??"]
[Round "2"]
[White "Nielsen, Hartvig"]
[Black "Sloth, Jorn"]
[Result "0-1"]
[ECO "C16"]
[PlyCount "62"]
[EventDate "1963.??.??"]
[EventType "team"]
[EventRounds "7"]
[EventCountry "DEN"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 Ne7 5. Bd2 b6 6. f4 Ba6 7. Bxa6 Nxa6 8. Qe2 Nb8 9. Nf3 c5 10. Nb5 Bxd2+ 11. Qxd2 0-0 12. c3 Nbc6 13. 0-0 Qd7 14. Qe2 Na5 15. b3 c4 16. Nd6 cxb3 17. axb3 Nxb3 18. Ra3 Na5 19. Ng5 f6 20. Nxh7 Kxh7 21. c4 Nxc4 22. Rh3+ Kg8 23. Qh5 Nxd6 24. exd6 Qxd6 25. g4 Qb4 26. Rd1 Qa4 27. g5 Qc2 28. Re1 Qg6 29. Qg4 fxg5 30. Rxe6 Rxf4 31. Qe2 Re4 0-1

[Event "DEN-ch52 Mesterskabet"]
[Site "Nykobing"]
[Date "1961.04.03"]
[Round "11"]
[White "Pedersen, Eigil"]
[Black "Nielsen, Hartvig"]
[Result "1-0"]
[ECO "E73"]
[PlyCount "125"]
[EventDate "1961.03.26"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "DEN"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 g6 3. d4 Bg7 4. e4 d6 5. Be2 0-0 6. Bg5 b6 7. f4 Bb7 8. Bd3 Nbd7 9. Nge2 Ng4 10. Qd2 f6 11. Bh4 e5 12. h3 Nh6 13. 0-0 c6 14. Bc2 Qe7 15. Bf2 Nf7 16. Rae1 Bh6 17. Be3 Rad8 18. Kh1 Rfe8 19. Qd3 Nc5 20. dxc5 dxc5 21. Nd5 cxd5 22. cxd5 Bg7 23. f5 g5 24. Ng3 h6 25. Qa3 Qc7 26. Ba4 Rf8 27. Rc1 Qd6 28. Bb5 a6 29. Be2 Rc8 30. Rc2 Rc7 31. Rfc1 Rfc8 32. Bf2 Bf8 33. Qf3 Qe7 34. a4 a5 35. Qb3 Qd6 36. Nf1 Rb8 37. Nd2 Qd8 38. Qxb6 Bxd5 39. Qxa5 Ra8 40. Qc3 Bb7 41. b3 Ba6 42. Bc4 Bxc4 43. Qxc4 Rd7 44. Qe2 Rb8 45. Nf1 Rd3 46. Bxc5 Rdxb3 47. Bxf8 Kxf8 48. Rc7 R3b7 49. Rxb7 Rxb7 50. Qa6 Qb6 51. Rc8+ Ke7 52. Qc4 Nd8 53. Qg8 Kd7 54. Ra8 Rb8 55. Ra7+ Rb7 56. Ra8 Rb8 57. Rxb8 Qxb8 58. Qg7+ Kc6 59. Qxf6+ Kc5 60. Qf8+ Kd4 61. Ng3 Qc7 62. Qa3 Nc6 63. Ne2+ 1-0

[Event "DEN-ch52 Mesterskabet"]
[Site "Nykobing"]
[Date "1961.04.02"]
[Round "10"]
[White "Nielsen, Hartvig"]
[Black "From, Sigfred"]
[Result "0-1"]
[ECO "B27"]
[PlyCount "82"]
[EventDate "1961.03.26"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "DEN"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 g6 3. d4 cxd4 4. Qxd4 Nf6 5. e5 Nc6 6. Qa4 Nd5 7. Qe4 Nc7 8. Bc4 Bg7 9. 0-0 b5 10. Bb3 Bb7 11. Re1 0-0 12. Nc3 Na5 13. Qh4 Nxb3 14. axb3 Re8 15. Ng5 h6 16. Nh3 e6 17. Qg3 b4 18. Ne4 Bxe4 19. Rxe4 Nd5 20. Nf4 d6 21. exd6 Qxd6 22. Nd3 e5 23. Bd2 a5 24. f3 Ne7 25. Rae1 Nf5 26. Qf2 Rac8 27. Rc4 Red8 28. g4 Nd4 29. Be3 Rxc4 30. bxc4 e4 31. c5 Qd7 32. Kf1 exd3 33. cxd3 Qd5 34. Bxd4 Bxd4 35. Qe2 Bxc5 36. Rc1 Qd4 37. Kg2 Qe3 38. Re1 Qxe2+ 39. Rxe2 Rxd3 40. Re5 Rd2+ 41. Kf1 Bd6 0-1

[Event "DEN-ch52 Mesterskabet"]
[Site "Nykobing"]
[Date "1961.04.01"]
[Round "9"]
[White "Nielsen, Axel"]
[Black "Nielsen, Hartvig"]
[Result "0-1"]
[ECO "D94"]
[PlyCount "47"]
[EventDate "1961.03.26"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "DEN"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 d5 3. cxd5 Nxd5 4. d4 g6 5. Nf3 Bg7 6. e3 0-0 7. Bc4 Nb6 8. Bb3 Na6 9. a4 Bg4 10. a5 Nc8 11. h3 Bf5 12. e4 Bd7 13. Be3 Nd6 14. 0-0 Nb5 15. Qd2 c5 16. d5 Rc8 17. Rfd1 Nd6 18. e5 Nf5 19. Bf4 c4 20. Bc2 f6 21. e6 Be8 22. Bxf5 gxf5 23. d6 Bh5 24. Nd5 0-1

[Event "DEN-ch52 Mesterskabet"]
[Site "Nykobing"]
[Date "1961.03.31"]
[Round "8"]
[White "Nielsen, Hartvig"]
[Black "Haahr, Thorkild"]
[Result "1-0"]
[ECO "C24"]
[PlyCount "83"]
[EventDate "1961.03.26"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "DEN"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 e5 2. Nc3 d6 3. Bc4 Nf6 4. d3 Be7 5. f4 0-0 6. Nf3 exf4 7. Bxf4 Be6 8. Bb3 Bxb3 9. axb3 d5 10. e5 Nh5 11. Be3 Nc6 12. d4 f5 13. Qe2 Nb4 14. 0-0 c6 15. Ne1 Qe8 16. Nd3 Nxd3 17. Qxd3 f4 18. Bd2 g5 19. g3 Qd7 20. Qe2 Qh3 21. Qg2 Qg4 22. gxf4 Qxg2+ 23. Kxg2 Nxf4+ 24. Bxf4 gxf4 25. Kf3 Rf5 26. Rg1+ Kf7 27. Rg4 Ke6 28. Ne2 Bg5 29. Rag1 Be7 30. Rg7 h5 31. Rh7 Raf8 32. Rgg7 Re8 33. c4 dxc4 34. bxc4 c5 35. Nxf4+ Kd7 36. Ke4 Rxf4+ 37. Kxf4 cxd4 38. Ke4 Ke6 39. Rxe7+ Rxe7 40. Rxe7+ Kxe7 41. Kxd4 Ke6 42. c5 1-0

[Event "DEN-ch52 Mesterskabet"]
[Site "Nykobing"]
[Date "1961.03.30"]
[Round "7"]
[White "Andersen, Borge"]
[Black "Nielsen, Hartvig"]
[Result "1-0"]
[ECO "A16"]
[PlyCount "111"]
[EventDate "1961.03.26"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "DEN"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 d5 3. cxd5 Nxd5 4. g3 Nxc3 5. bxc3 g6 6. Bg2 Bg7 7. Qb3 Nd7 8. h4 Nb6 9. h5 Be6 10. Qc2 Bd5 11. Nf3 Qd7 12. Rb1 Qa4 13. Qxa4+ Nxa4 14. Nh4 Bxg2 15. Nxg2 0-0-0 16. Ne3 e6 17. Rh4 Nb6 18. Rhb4 Rd7 19. a4 c5 20. Rb5 Nxa4 21. Ra5 Nb6 22. Rxa7 Kb8 23. Ra5 Nd5 24. Nxd5 Rxd5 25. Rab5 Rxh5 26. Rxb7+ Kc8 27. Kd1 Rf5 28. f4 Rd8 29. e4 Rh5 30. Rxf7 Bxc3 31. Rbb7 Rd4 32. Ra7 Kb8 33. Rae7 Rd8 34. Rb7+ Ka8 35. Ra7+ Kb8 36. Rfb7+ Kc8 37. Re7 Kb8 38. Rab7+ Ka8 39. Rb5 Bxd2 40. Bxd2 Rh1+ 41. Kc2 Rh2 42. Ra5+ Kb8 43. Rb5+ Ka8 44. Rxe6 Rhxd2+ 45. Kc3 Ka7 46. Rxc5 R2d3+ 47. Kb4 R8d7 48. g4 Rg3 49. f5 Rxg4 50. f6 Rf4 51. Ra5+ Kb7 52. Kb5 Rf1 53. Rb6+ Kc8 54. Ra8+ Kc7 55. Ra7+ Kc8 56. Rc6+ 1-0

[Event "DEN-ch52 Mesterskabet"]
[Site "Nykobing"]
[Date "1961.03.30"]
[Round "6"]
[White "Nielsen, Hartvig"]
[Black "Hamann, Svend"]
[Result "1-0"]
[ECO "B44"]
[PlyCount "121"]
[EventDate "1961.03.26"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "DEN"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. c4 Nc6 4. d4 cxd4 5. Nxd4 Nf6 6. Nc3 Qc7 7. Be2 Bb4 8. Ndb5 Qb8 9. a3 Be7 10. Bg5 a6 11. Nd4 h6 12. Be3 0-0 13. 0-0 Rd8 14. f4 d5 15. e5 Nxd4 16. Qxd4 Ne4 17. Nxe4 dxe4 18. Qxe4 Bd7 19. Bb6 Bc6 20. Qe3 Re8 21. Rad1 Qc8 22. Rd2 f6 23. Bd4 f5 24. b4 b5 25. Bc5 Qb7 26. Bxe7 Rxe7 27. Bf3 Bxf3 28. Qxf3 Qxf3 29. Rxf3 bxc4 30. Rc3 Rc7 31. Rd4 a5 32. b5 a4 33. Rdxc4 Rb7 34. Rc8+ Rxc8 35. Rxc8+ Kf7 36. Rc5 Rd7 37. b6 Ke7 38. Rc4 Rd1+ 39. Kf2 Rb1 40. Rc7+ Kd8 41. Rc6 Kd7 42. Rc7+ Kd8 43. Rxg7 Rxb6 44. Rg6 h5 45. Kg3 Rb3+ 46. Kh4 Rxa3 47. Rxe6 Ra2 48. Kg5 Rxg2+ 49. Kf6 a3 50. Ra6 a2 51. e6 Re2 52. Kf7 h4 53. Rxa2 Rxa2 54. e7+ Kc7 55. e8Q Rxh2 56. Qe5+ Kc6 57. Qxf5 h3 58. Qe4+ Kb5 59. f5 Rf2 60. Qd5+ Ka6 61. Qc6+ 1-0

[Event "DEN-ch52 Mesterskabet"]
[Site "Nykobing"]
[Date "1961.03.29"]
[Round "5"]
[White "Blom, Kaj"]
[Black "Nielsen, Hartvig"]
[Result "1/2-1/2"]
[ECO "E91"]
[PlyCount "91"]
[EventDate "1961.03.26"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "DEN"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 0-0 6. Nf3 Bg4 7. h3 Bxf3 8. Bxf3 Nc6 9. d5 Na5 10. Be2 c5 11. 0-0 Nd7 12. Qc2 a6 13. f4 Bd4+ 14. Kh1 e6 15. dxe6 fxe6 16. Bg4 Qe7 17. Ne2 Ne5 18. Bf3 Nxf3 19. Rxf3 Nc6 20. Bd2 b5 21. Bc3 Bxc3 22. Qxc3 Qf6 23. cxb5 axb5 24. e5 b4 25. Qc2 Qf5 26. Qxf5 exf5 27. exd6 Rfe8 28. Ng1 Nd4 29. Rd3 Red8 30. Rc1 Rac8 31. Nf3 Nxf3 32. gxf3 Rc6 33. a3 c4 34. Rd4 b3 35. Rcxc4 Rxc4 36. Rxc4 Rxd6 37. Rb4 Rd1+ 38. Kg2 Rd2+ 39. Kg3 Rxb2 40. a4 Kg7 41. a5 Kh6 42. Rb7 Ra2 43. Rxb3 Rxa5 44. Rb7 Ra1 45. Rc7 Ra4 46. Rf7 1/2-1/2

[Event "DEN-ch52 Mesterskabet"]
[Site "Nykobing"]
[Date "1961.03.28"]
[Round "4"]
[White "Nielsen, Hartvig"]
[Black "Moller, P."]
[Result "0-1"]
[ECO "A10"]
[PlyCount "124"]
[EventDate "1961.03.26"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "DEN"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. c4 f5 2. e4 fxe4 3. d3 Nf6 4. dxe4 e5 5. Bg5 Bc5 6. Nc3 d6 7. Qc2 Nc6 8. Rd1 Nd4 9. Qc1 Be6 10. Bd3 h6 11. Bh4 g5 12. Bg3 Qe7 13. Nge2 0-0-0 14. Nxd4 exd4 15. Ne2 Bb4+ 16. Kf1 Bc5 17. b4 Bxb4 18. Nxd4 Bg4 19. f3 Bd7 20. Qb2 Bc5 21. Rb1 Bb6 22. Bf2 Rhf8 23. a4 Bxa4 24. Nf5 Qe5 25. Bd4 Bxd4 26. Nxd4 Bc6 27. Nxc6 bxc6 28. Qxe5 dxe5 29. Ke2 Nd7 30. Ra1 Nc5 31. Rhd1 Ne6 32. Ke3 c5 33. Rxa7 Kd7 34. Bc2+ Ke7 35. Rd5 Kf6 36. Ra6 Ra8 37. Rc6 Ra3+ 38. Bd3 Rb8 39. Rd7 Rbb3 40. Rh7 Rxd3+ 41. Kf2 Rd2+ 42. Kg3 Rd6 43. Rxh6+ Ke7 44. Rh7+ Kd8 45. Rhxc7 Rxc6 46. Rxc6 Kd7 47. Rb6 Ra2 48. Kg4 Nd4 49. g3 Rxh2 50. f4 gxf4 51. gxf4 Rg2+ 52. Kh3 Re2 53. fxe5 Rxe4 54. Kg3 Rxe5 55. Kf4 Re1 56. Rh6 Nb3 57. Rh3 Nd4 58. Rh6 Kc7 59. Rg6 Nc6 60. Rg7+ Kb6 61. Rg3 Rc1 62. Rb3+ Nb4 0-1

[Event "DEN-ch52 Mesterskabet"]
[Site "Nykobing"]
[Date "1961.03.27"]
[Round "2"]
[White "Holm Pedersen, Sejer"]
[Black "Nielsen, Hartvig"]
[Result "0-1"]
[ECO "E42"]
[PlyCount "122"]
[EventDate "1961.03.26"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "DEN"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Nge2 cxd4 6. exd4 d5 7. a3 Be7 8. c5 0-0 9. g3 b6 10. b4 bxc5 11. dxc5 a5 12. Rb1 axb4 13. axb4 Nc6 14. Bg2 Rb8 15. b5 Bxc5 16. bxc6 Rxb1 17. Nxb1 Qb6 18. Nbc3 Bxf2+ 19. Kf1 Ba6 20. Bg5 Ng4 21. Qb1 Qa7 22. Nd1 f6 23. Bf4 Ne3+ 24. Nxe3 Bxe3 25. Qa2 Bxf4 26. gxf4 Qb6 27. Rg1 Qxc6 28. Bf3 Bc4 29. Qa7 g6 30. Kf2 Rf7 31. Qb8+ Kg7 32. Rb1 Qc5+ 33. Kg2 Qe3 34. Rb2 e5 35. Rb7 d4 36. Rxf7+ Bxf7 37. Qc7 e4 38. Bg4 h5 39. Be6 Qxe2+ 40. Kg1 Qd1+ 41. Kg2 Qf3+ 42. Kg1 Kh6 43. Qd6 Qd1+ 44. Kg2 Qc2+ 45. Kg1 Kg7 46. Qe7 Qd1+ 47. Kg2 Qf3+ 48. Kg1 Qxf4 49. Bxf7 e3 50. Bc4+ Kh6 51. Kg2 d3 52. Qf8+ Kg5 53. Qc5+ Kh4 54. Bxd3 Qf2+ 55. Kh1 Qe1+ 56. Kg2 Qd2+ 57. Kf3 Qxd3 58. Qb4+ Kh3 59. Qb8 e2+ 60. Kf2 Qf5+ 61. Kxe2 Qe5+ 0-1

[Event "DEN-ch52 Mesterskabet"]
[Site "Nykobing"]
[Date "1961.03.27"]
[Round "3"]
[White "Nielsen, Hartvig"]
[Black "Hansen, Victor Juul"]
[Result "1/2-1/2"]
[ECO "B45"]
[PlyCount "81"]
[EventDate "1961.03.26"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "DEN"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. Ndb5 Bb4 7. a3 Bxc3+ 8. Nxc3 d5 9. exd5 Nxd5 10. Nxd5 Qxd5 11. Qxd5 exd5 12. Bf4 0-0 13. 0-0-0 Be6 14. Be2 Rfd8 15. Bf3 Rd7 16. Rd2 Rad8 17. Rhd1 f6 18. b3 Kf7 19. h4 g6 20. Kb2 Ne7 21. Be3 Nc6 22. g3 h5 23. c4 dxc4 24. Rxd7+ Rxd7 25. Rxd7+ Bxd7 26. bxc4 Ne5 27. Be2 Nc6 28. Kc3 Be6 29. Bf3 a6 30. Bf4 Ke7 31. Be4 Bf7 32. Bh6 Be8 33. Bd5 Bf7 34. Bf4 Be6 35. Be3 Kd7 36. Bc5 Bf5 37. f3 Be6 38. Kd3 b5 39. Bxe6+ Kxe6 40. cxb5 axb5 41. Ke4 1/2-1/2

[Event "DEN-ch52 Mesterskabet"]
[Site "Nykobing"]
[Date "1961.03.26"]
[Round "1"]
[White "Nielsen, Hartvig"]
[Black "Kolvig, Bent"]
[Result "0-1"]
[ECO "D46"]
[PlyCount "152"]
[EventDate "1961.03.26"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "DEN"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nc3 e6 4. e3 Nf6 5. Nf3 Nbd7 6. Qc2 Bd6 7. Bd3 dxc4 8. Bxc4 e5 9. 0-0 0-0 10. dxe5 Nxe5 11. Nxe5 Bxe5 12. f4 Bc7 13. Bd2 Re8 14. Rae1 Bb6 15. h3 Bf5 16. Qc1 Bd3 17. Bxd3 Qxd3 18. Nd1 Ne4 19. Bb4 Ng3 20. Rf2 Rad8 21. Kh2 Ne4 22. Rfe2 h5 23. Nc3 Nd2 24. Nd1 Nf1+ 25. Kg1 Ng3 26. Rf2 h4 27. Kh2 Qb5 28. Bc3 Rd3 29. Rf3 Qd5 30. Rxg3 hxg3+ 31. Kxg3 Qxa2 32. Kh2 Qd5 33. Be5 f6 34. e4 Qb3 35. Bc3 Qc4 36. e5 Bc7 37. Nf2 Rd5 38. Ng4 fxe5 39. fxe5 Bxe5+ 40. Nxe5 Rdxe5 41. Bxe5 Qxc1 42. Rxc1 Rxe5 43. Rc3 Rb5 44. b3 g5 45. Kg3 Rb4 46. Kf2 Kg7 47. g4 Kf6 48. Rf3+ Ke6 49. Ke2 a5 50. Kd2 Rf4 51. Re3+ Kd6 52. Kc2 b5 53. Kc3 Kd5 54. Rd3+ Ke5 55. Re3+ Re4 56. Rf3 Kd5 57. Rd3+ Kc5 58. Rf3 Re5 59. Rg3 Kd5 60. Kd3 Re4 61. Rf3 Rf4 62. Re3 a4 63. bxa4 Rxa4 64. Kc2 c5 65. Re8 Ra2+ 66. Kd1 Rh2 67. Rg8 b4 68. Rxg5+ Kd4 69. Rf5 Rxh3 70. Kc2 c4 71. Rf4+ Kd5 72. Rf8 Rh2+ 73. Kc1 b3 74. Rf3 Ke4 75. Rg3 Kd4 76. g5 c3 0-1

[Event "DEN-ch51 Mesterskabet"]
[Site "Aalborg"]
[Date "1960.04.18"]
[Round "11"]
[White "From, Sigfred"]
[Black "Nielsen, Hartvig"]
[Result "1-0"]
[ECO "B02"]
[PlyCount "97"]
[EventDate "1960.04.14"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "DEN"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 Nf6 2. e5 Nd5 3. c4 Nb6 4. c5 Nd5 5. Bc4 e6 6. Nc3 d6 7. Nxd5 exd5 8. Bxd5 c6 9. Bb3 dxe5 10. Qh5 Qf6 11. d4 Bf5 12. Nf3 Nd7 13. 0-0 Qg6 14. Qxg6 Bxg6 15. Re1 Be7 16. Nxe5 Nxe5 17. Rxe5 Kd7 18. d5 Rae8 19. dxc6+ bxc6 20. Bf4 Bf6 21. Rd1+ Kc8 22. Rxe8+ Rxe8 23. Bc4 Be5 24. Re1 f6 25. Bxe5 fxe5 26. f3 h6 27. Kf2 Kc7 28. b4 Bc2 29. Re2 Ba4 30. Ke3 Rb8 31. a3 a5 32. Rb2 Bb5 33. Bxb5 cxb5 34. Rd2 axb4 35. axb4 Rf8 36. g3 Ra8 37. Ke4 Ra4 38. Rb2 Ra3 39. h4 Rc3 40. h5 Kc6 41. g4 Kc7 42. Ra2 Rc4+ 43. Kxe5 Rxb4 44. Ra7+ Kc6 45. Rxg7 Rc4 46. Rg6+ Kxc5 47. Rxh6 b4 48. Rh8 b3 49. Rc8+ 1-0

[Event "DEN-ch51 Mesterskabet"]
[Site "Aalborg"]
[Date "1960.04.18"]
[Round "10"]
[White "Nielsen, Hartvig"]
[Black "Blom, Kaj"]
[Result "1-0"]
[ECO "B45"]
[PlyCount "121"]
[EventDate "1960.04.14"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "DEN"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Ndb5 Bb4 7. a3 Bxc3+ 8. Nxc3 d5 9. exd5 exd5 10. Bd3 Bg4 11. f3 Be6 12. Bg5 0-0 13. Qd2 Ne5 14. f4 Nc4 15. Bxc4 dxc4 16. Qxd8 Raxd8 17. Bxf6 gxf6 18. Rd1 Bf5 19. Rd2 Bg4 20. Rxd8 Rxd8 21. 0-0 Kf8 22. f5 Rd2 23. h3 Rxc2 24. hxg4 Rxb2 25. Rb1 Rc2 26. Nd5 Rd2 27. Nxf6 c3 28. Ne4 Rd3 29. Rc1 Rd4 30. Nxc3 Rxg4 31. f6 Rc4 32. Ne2 Rxc1+ 33. Nxc1 Ke8 34. Nb3 Kd7 35. Kf2 Kd6 36. Kf3 Ke5 37. Nc5 b5 38. Na6 Kd4 39. Ke2 Kc4 40. Kd2 Kb3 41. Nc7 b4 42. axb4 Kxb4 43. Ne6 Kc4 44. Ng5 Kd5 45. Nxf7 Ke6 46. Ng5+ Kxf6 47. Nxh7+ Kf5 48. Nf8 Kg4 49. Ke2 Kg3 50. Kf1 a5 51. Ne6 a4 52. Nd4 a3 53. Ne2+ Kg4 54. Nc3 Kg3 55. Na2 Kg4 56. Kf2 Kf4 57. Nc3 Ke5 58. Ke3 Kf5 59. Kf3 Ke5 60. g4 Kd4 61. Nb5+ 1-0

[Event "DEN-ch51 Mesterskabet"]
[Site "Aalborg"]
[Date "1960.04.17"]
[Round "9"]
[White "Haahr, Thorkild"]
[Black "Nielsen, Hartvig"]
[Result "1/2-1/2"]
[ECO "E14"]
[PlyCount "132"]
[EventDate "1960.04.14"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "DEN"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. e3 b6 4. c4 Bb4+ 5. Bd2 Bxd2+ 6. Nfxd2 Bb7 7. Bd3 d5 8. Nc3 Nbd7 9. cxd5 exd5 10. 0-0 0-0 11. Qf3 c5 12. Rad1 Qe7 13. Rfe1 Rfe8 14. Qh3 g6 15. Re2 cxd4 16. exd4 Qb4 17. Nb3 a5 18. Rxe8+ Rxe8 19. Bb5 Qe7 20. Qd3 Kg7 21. a3 Qe6 22. Nd2 Bc6 23. Nf3 Bxb5 24. Qxb5 h6 25. h3 Qd6 26. Rc1 Qf4 27. Rd1 Qd6 28. Kf1 Re6 29. Rc1 Qc6 30. Qxc6 Rxc6 31. Re1 Re6 32. Ne5 Rd6 33. Nb5 Re6 34. Nxd7 Nxd7 35. Nc7 Rxe1+ 36. Kxe1 Nf6 37. Ke2 Kf8 38. Kd3 Ke7 39. f3 Kd7 40. Nb5 Nh5 41. Ke3 g5 42. Nc3 Kd6 43. Ne2 f5 44. g3 Ke6 45. Kf2 f4 46. g4 Nf6 47. Nc3 Nd7 48. Ke2 Kd6 49. Kd3 Nb8 50. Ne2 Nc6 51. Kc3 Ne7 52. Nc1 Ng6 53. Nd3 Ke6 54. b4 Kd6 55. bxa5 bxa5 56. Kb3 Kc6 57. a4 Nh4 58. Ne5+ Kd6 59. Kc3 Ng2 60. Kd2 Ne3 61. Kd3 Ke6 62. Kc3 Nd1+ 63. Kc2 Ne3+ 64. Kc3 Nd1+ 65. Kc2 Ne3+ 66. Kc3 Nd1+ 1/2-1/2

[Event "DEN-ch51 Mesterskabet"]
[Site "Aalborg"]
[Date "1960.04.17"]
[Round "8"]
[White "Nielsen, Hartvig"]
[Black "Hamann, Svend"]
[Result "1/2-1/2"]
[ECO "A82"]
[PlyCount "88"]
[EventDate "1960.04.14"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "DEN"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 f5 2. e4 fxe4 3. Nc3 Nf6 4. f3 e3 5. Bxe3 e6 6. Bd3 b6 7. Nh3 Nc6 8. 0-0 Bb7 9. Nf4 Ne7 10. Ne4 Ned5 11. Nxf6+ Nxf6 12. Qe1 c6 13. c4 Qc7 14. Rc1 c5 15. d5 e5 16. Bf5 0-0-0 17. Nd3 Kb8 18. b4 d6 19. bxc5 bxc5 20. Bd2 Re8 21. Ba5 Qe7 22. Rb1 g6 23. Be6 Ka8 24. Qd1 Bc8 25. Qa4 Bd7 26. Bxd7 Qxd7 27. Qxd7 Nxd7 28. Nf2 Be7 29. Ne4 Nf6 30. Nxf6 Bxf6 31. Kf2 e4 32. Rb3 Bd4+ 33. Kg3 exf3 34. gxf3 Re7 35. Bc3 Bxc3 36. Rxc3 Rb8 37. Rb3 Rxb3 38. axb3 Rb7 39. Rb1 a5 40. Ra1 Rxb3 41. Rxa5+ Kb7 42. Ra2 Rc3 43. Ra4 Rb3 44. Ra1 Rc3 1/2-1/2

[Event "DEN-ch51 Mesterskabet"]
[Site "Aalborg"]
[Date "1960.04.16"]
[Round "7"]
[White "Nielsen, Axel"]
[Black "Nielsen, Hartvig"]
[Result "1-0"]
[ECO "A22"]
[PlyCount "81"]
[EventDate "1960.04.14"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "DEN"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 Nf6 3. g3 Bb4 4. Bg2 0-0 5. e4 Bxc3 6. bxc3 d6 7. Ne2 Be6 8. d3 Qd7 9. 0-0 Bh3 10. f4 Qg4 11. f5 Qh5 12. Bxh3 Qxh3 13. Rf2 Ng4 14. Rg2 Qh5 15. Bd2 g6 16. Qb3 b6 17. Rf1 Nd7 18. Qd1 Kh8 19. Kh1 Rg8 20. Ng1 gxf5 21. exf5 Ngf6 22. Qxh5 Nxh5 23. g4 Nf4 24. Bxf4 exf4 25. Ne2 Ne5 26. Nxf4 Nxg4 27. Re1 Ne5 28. d4 Rxg2 29. Kxg2 Rg8+ 30. Kf1 Nc6 31. Nd5 Kg7 32. Kf2 Kh6 33. f6 Rc8 34. Rg1 Na5 35. Nf4 Nxc4 36. h4 Nd2 37. Ke3 Nc4+ 38. Kd3 Ne5+ 39. dxe5 dxe5 40. Nd5 c5 41. Rg5 1-0

[Event "DEN-ch51 Mesterskabet"]
[Site "Aalborg"]
[Date "1960.04.16"]
[Round "6"]
[White "Nielsen, Hartvig"]
[Black "Enevoldsen, Jens"]
[Result "0-1"]
[ECO "B75"]
[PlyCount "84"]
[EventDate "1960.04.14"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "DEN"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 a6 8. Qd2 Nbd7 9. Bc4 Qc7 10. Bb3 Nc5 11. 0-0-0 Nxb3+ 12. cxb3 Bd7 13. Kb1 0-0 14. g4 Bc6 15. Bh6 Rad8 16. h4 e5 17. Nxc6 bxc6 18. h5 Qe7 19. Bg5 Rd7 20. Rh3 Qe6 21. Rdh1 d5 22. Bxf6 Bxf6 23. exd5 cxd5 24. g5 Qf5+ 25. Ka1 Bxg5 26. Qg2 Be3 27. hxg6 fxg6 28. Rd1 Rc8 29. a4 Bd4 30. f4 Bxc3 31. Rxc3 Rxc3 32. bxc3 exf4 33. Qd2 f3 34. Ka2 f2 35. Qe2 Rf7 36. Rf1 g5 37. b4 g4 38. b5 axb5 39. axb5 g3 40. b6 g2 41. b7 Rxb7 42. Rxf2 Qb1+ 0-1

[Event "DEN-ch51 Mesterskabet"]
[Site "Aalborg"]
[Date "1960.04.15"]
[Round "4"]
[White "Kolvig, Bent"]
[Black "Nielsen, Hartvig"]
[Result "1-0"]
[ECO "B50"]
[PlyCount "43"]
[EventDate "1960.04.14"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "DEN"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. c3 Nf6 4. d3 Nc6 5. g3 e5 6. Bg2 Be7 7. 0-0 0-0 8. Na3 d5 9. exd5 Nxd5 10. Re1 Bf6 11. Nc4 Bg4 12. h3 Bxf3 13. Qxf3 Nb6 14. Be3 Nd7 15. Nd6 Rb8 16. Rab1 Qc7 17. Nxb7 Rxb7 18. Qxc6 Rfb8 19. Red1 Be7 20. d4 cxd4 21. cxd4 exd4 22. Bf4 1-0

[Event "DEN-ch51 Mesterskabet"]
[Site "Aalborg"]
[Date "1960.04.15"]
[Round "5"]
[White "Nielsen, Hartvig"]
[Black "Hansen, Victor Juul"]
[Result "1-0"]
[ECO "A37"]
[PlyCount "123"]
[EventDate "1960.04.14"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "DEN"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. c4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. Nf3 d6 6. 0-0 e5 7. d3 Nge7 8. Bg5 f6 9. Bd2 0-0 10. Ne1 Be6 11. Nc2 Qd7 12. Ne3 Nd4 13. Ned5 Rad8 14. Rb1 Nxd5 15. Nxd5 Nc6 16. b4 b6 17. e3 Ne7 18. Nxe7+ Qxe7 19. Qe2 Rfe8 20. Bc6 Bd7 21. Qf3 Bxc6 22. Qxc6 Qd7 23. Qd5+ Qe6 24. e4 Rd7 25. Rfc1 Rf7 26. Qxe6 Rxe6 27. a4 f5 28. a5 h5 29. axb6 axb6 30. Ra1 Rb7 31. Ra8+ Kf7 32. b5 Re8 33. Rca1 Bf6 34. Rxe8 Kxe8 35. Ra8+ Kf7 36. Kg2 fxe4 37. dxe4 Ke6 38. h4 Kf7 39. Kh3 Ke6 40. Be3 Kf7 41. Bh6 Ke6 42. Ra6 Kd7 43. f3 Ke6 44. g4 Rh7 45. Bg5 Bxg5 46. hxg5 hxg4+ 47. Kxg4 Rh1 48. Rxb6 Rg1+ 49. Kh4 Rh1+ 50. Kg3 Rg1+ 51. Kf2 Rc1 52. Rb7 Rxc4 53. Rg7 Rb4 54. Rxg6+ Ke7 55. Rg7+ Ke8 56. Rb7 c4 57. g6 Kf8 58. Ke2 Rb2+ 59. Kd1 Rb3 60. b6 Kg8 61. Kc2 Rxf3 62. Rc7 1-0

[Event "DEN-ch51 Mesterskabet"]
[Site "Aalborg"]
[Date "1960.04.15"]
[Round "3"]
[White "Nielsen, Hartvig"]
[Black "Jensen, Erik Bartram"]
[Result "1-0"]
[ECO "D44"]
[PlyCount "63"]
[EventDate "1960.04.14"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "DEN"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 dxc4 6. e4 b5 7. a4 b4 8. Nb1 Be7 9. e5 Nd5 10. Bxe7 Qxe7 11. Bxc4 Ba6 12. Nbd2 0-0 13. 0-0 c5 14. Bxa6 Nxa6 15. Qe2 Nac7 16. dxc5 Qxc5 17. Rfc1 Qe7 18. g3 f6 19. Ne4 Qe8 20. exf6 Qh5 21. Nd4 Qxe2 22. Nxe2 gxf6 23. Nf4 Rab8 24. Nh5 Kf7 25. Nhxf6 Kg6 26. Nd7 b3 27. Nxf8+ Rxf8 28. Rc6 Rb8 29. Nc5 Kf5 30. Re1 Rb4 31. f4 Rc4 32. Nxe6 1-0

[Event "DEN-ch51 Mesterskabet"]
[Site "Aalborg"]
[Date "1960.04.14"]
[Round "1"]
[White "Nielsen, Hartvig"]
[Black "Pedersen, Eigil"]
[Result "0-1"]
[ECO "C64"]
[PlyCount "49"]
[EventDate "1960.04.14"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "DEN"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Bc5 4. c3 Nf6 5. d4 exd4 6. e5 Ne4 7. 0-0 d5 8. Nxd4 0-0 9. Bxc6 bxc6 10. b4 Bb6 11. f3 Ng5 12. Be3 Ne6 13. Nd2 f6 14. exf6 Qxf6 15. N2b3 Ba6 16. Re1 Nf4 17. Qd2 Nd3 18. Red1 Ne5 19. Qf2 Rae8 20. Nc5 Bxc5 21. bxc5 Qe7 22. h4 Ng4 23. Bg5 Nxf2 24. Bxe7 Nxd1 25. Bxf8 0-1

[Event "DEN-ch51 Mesterskabet"]
[Site "Aalborg"]
[Date "1960.04.14"]
[Round "2"]
[White "Petersen, Finn"]
[Black "Nielsen, Hartvig"]
[Result "0-1"]
[ECO "C86"]
[PlyCount "110"]
[EventDate "1960.04.14"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "DEN"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Qe2 b5 7. Bb3 0-0 8. c3 d5 9. d3 d4 10. Nbd2 Bg4 11. h3 Bh5 12. Re1 Qd6 13. Nf1 Rfd8 14. Bc2 Bg6 15. Ng3 Qd7 16. Bd2 Nh5 17. Nxh5 Bxh5 18. g4 Bg6 19. Kh2 h5 20. g5 a5 21. Rad1 Bc5 22. Rf1 Qe7 23. Rg1 dxc3 24. bxc3 Rab8 25. Rb1 b4 26. cxb4 Bxb4 27. Be3 Bc5 28. Bb3 Bxe3 29. Qxe3 Rb4 30. Rgc1 Nd4 31. Nxd4 Rbxd4 32. Bc4 Qa3 33. Qe2 Kh7 34. Rb5 Qe7 35. Qe3 a4 36. Rd5 c6 37. Rxd8 Rxd8 38. Rc2 f6 39. gxf6 Qxf6 40. Rc1 Rf8 41. Kg2 h4 42. Rf1 Bh5 43. Kh2 Qh6 44. Qxh6+ Kxh6 45. Kg1 Rf6 46. Rb1 Be2 47. Re1 Rg6+ 48. Kh2 Bf3 49. Rg1 a3 50. Rxg6+ Kxg6 51. Be6 Kg5 52. Bd7 c5 53. Bb5 Kf4 54. Ba4 Be2 55. Bb5 Bf1 0-1

[Event "DEN-ch50 Mesterskabet"]
[Site "Aarhus"]
[Date "1959.03.30"]
[Round "11"]
[White "Nielsen, Hartvig"]
[Black "Hamann, Svend"]
[Result "1-0"]
[ECO "A30"]
[PlyCount "65"]
[EventDate "1959.03.22"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "DEN"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. g3 c5 4. Nf3 b6 5. Bg2 Bb7 6. 0-0 cxd4 7. Qxd4 Nc6 8. Qd1 Be7 9. Nc3 0-0 10. Bf4 d6 11. e4 Na5 12. Qd3 h6 13. Rad1 e5 14. Bc1 Qc7 15. b3 a6 16. Nh4 Rfd8 17. Nf5 Bf8 18. Ne3 Bc8 19. Ned5 Nxd5 20. Nxd5 Qc6 21. f4 Re8 22. f5 f6 23. a4 Rb8 24. Rf2 Bd7 25. Bf1 Rec8 26. Be3 Be8 27. Rc1 b5 28. cxb5 Qxc1 29. Bxc1 Rxc1 30. b4 Nc4 31. bxa6 Bxa4 32. a7 Ra8 33. Nc3 1-0

[Event "DEN-ch50 Mesterskabet"]
[Site "Aarhus"]
[Date "1959.03.29"]
[Round "10"]
[White "Korning, Peder"]
[Black "Nielsen, Hartvig"]
[Result "1-0"]
[ECO "A70"]
[PlyCount "61"]
[EventDate "1959.03.22"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "DEN"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 c5 3. d5 e6 4. c4 exd5 5. cxd5 d6 6. Nc3 g6 7. e4 Bg7 8. Bd3 0-0 9. 0-0 Bg4 10. h3 Bxf3 11. Qxf3 a6 12. a4 Nbd7 13. Qd1 Re8 14. Ra2 Qc7 15. b3 Ne5 16. f4 Nxd3 17. Qxd3 Qb6 18. Qc4 Nxe4 19. Nxe4 Bd4+ 20. Nf2 Re4 21. Kh1 Re7 22. Bb2 Rae8 23. a5 Qa7 24. Bxd4 cxd4 25. Nd3 f5 26. Ra4 Re4 27. Qc7 Re3 28. Rd1 Rg3 29. Qxd6 Re2 30. Rc4 Qa8 31. Qd7 1-0

[Event "DEN-ch50 Mesterskabet"]
[Site "Aarhus"]
[Date "1959.03.28"]
[Round "9"]
[White "Nielsen, Hartvig"]
[Black "Larsen, Bent"]
[Result "0-1"]
[ECO "A40"]
[PlyCount "126"]
[EventDate "1959.03.22"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "DEN"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 Nc6 2. c4 e5 3. d5 Nce7 4. e4 d6 5. Nc3 Ng6 6. Nge2 Be7 7. Be3 h5 8. Qd2 h4 9. f4 exf4 10. Nxf4 Ne5 11. Be2 Nf6 12. Bd4 Nfd7 13. Nh3 c5 14. dxc6 bxc6 15. 0-0 Qa5 16. Rad1 Nc5 17. Ng5 f6 18. Nf3 Rb8 19. b3 Ne6 20. Bf2 Ng4 21. Be1 Qc5+ 22. Bf2 Nxf2 23. Rxf2 Ng5 24. Nxg5 fxg5 25. Na4 Qe5 26. Qd4 Qxd4 27. Rxd4 g4 28. g3 Bg5 29. Rd3 hxg3 30. hxg3 Ke7 31. Nc3 Be6 32. Nd1 Rh6 33. Rh2 Rbh8 34. Rxh6 gxh6 35. Kg2 h5 36. Nf2 a5 37. Rd1 Rb8 38. Rh1 Bf7 39. Nd3 Bg6 40. Nf2 a4 41. Rb1 Be3 42. Bd3 Rf8 43. Nd1 Bd4 44. bxa4 Rf3 45. Rb7+ Ke6 46. Bc2 Ra3 47. Bb3 Bxe4+ 48. Kf1 h4 49. Nf2 Bf3 50. gxh4 g3 51. Nh3 g2+ 52. Ke1 Kf5 53. Rf7+ Kg4 54. Rf4+ Kxh3 55. Rxf3+ Kxh4 56. Rf1 Kg3 57. Ke2 gxf1Q+ 58. Kxf1 Kf3 59. Ke1 Ke3 60. Kf1 Bb6 61. Ke1 Kd3 62. Kf1 Kc3 63. Ke2 Rxb3 0-1

[Event "DEN-ch50 Mesterskabet"]
[Site "Aarhus"]
[Date "1959.03.27"]
[Round "8"]
[White "Terkelsen, Frode"]
[Black "Nielsen, Hartvig"]
[Result "1-0"]
[ECO "C86"]
[PlyCount "80"]
[EventDate "1959.03.22"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "DEN"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Qe2 b5 7. Bb3 d6 8. c3 0-0 9. d4 Bg4 10. Rd1 Qc8 11. a4 Qb7 12. d5 Na5 13. Bc2 c5 14. dxc6 Qxc6 15. axb5 axb5 16. Nbd2 Nc4 17. Rxa8 Rxa8 18. Nf1 Ra1 19. Bd3 Ra2 20. Ne3 Nxe3 21. Qxe3 Be6 22. Nd2 Ra1 23. Qe2 b4 24. c4 Nd7 25. Nb3 Ra2 26. Be3 Nb6 27. Nc1 Ra1 28. b3 Nd7 29. Bd2 Qb7 30. Qe1 Nc5 31. Bc2 Na6 32. Nd3 Ra2 33. Rc1 f5 34. Nxb4 Nxb4 35. Bxb4 Bg5 36. Bb1 Ra6 37. Rd1 Rb6 38. Bxd6 Rxb3 39. c5 fxe4 40. Bxe4 Qc8 1-0

[Event "DEN-ch50 Mesterskabet"]
[Site "Aarhus"]
[Date "1959.03.26"]
[Round "7"]
[White "Nielsen, Hartvig"]
[Black "Jensen, Erik Bartram"]
[Result "0-1"]
[ECO "D45"]
[PlyCount "82"]
[EventDate "1959.03.22"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "DEN"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Nf3 e6 5. e3 Nbd7 6. Qc2 Bd6 7. e4 dxe4 8. Nxe4 Nxe4 9. Qxe4 e5 10. Bd3 f5 11. Qe2 e4 12. Bc2 Be7 13. Nd2 Nf6 14. Nb3 0-0 15. 0-0 Qe8 16. Bf4 b5 17. f3 Be6 18. cxb5 cxb5 19. Nc5 Bc4 20. Bb3 Bxb3 21. axb3 Qc6 22. Ra6 Qd5 23. Ne6 Qb7 24. Rfa1 Nd5 25. Be5 Rfc8 26. fxe4 Nb4 27. R6a5 Rc2 28. Qf3 fxe4 29. Qg4 g6 30. Nf4 Qc6 31. Qe6+ Qxe6 32. Nxe6 a6 33. Nc7 Rc8 34. Nxa6 e3 35. Nc5 Bxc5 36. dxc5 R2xc5 37. Bc3 Nd3 38. Ra8 e2 39. b4 Rxc3 40. bxc3 e1Q+ 41. Rxe1 Rxa8 0-1

[Event "DEN-ch50 Mesterskabet"]
[Site "Aarhus"]
[Date "1959.03.25"]
[Round "6"]
[White "Nielsen, Axel"]
[Black "Nielsen, Hartvig"]
[Result "1-0"]
[ECO "A26"]
[PlyCount "135"]
[EventDate "1959.03.22"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "DEN"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 g6 3. g3 Bg7 4. Bg2 0-0 5. e4 e5 6. Nge2 Nc6 7. 0-0 d6 8. d3 Bg4 9. h3 Bxe2 10. Nxe2 Nh5 11. Be3 Nd4 12. Nxd4 exd4 13. Bd2 c5 14. b4 Qe7 15. bxc5 dxc5 16. Rb1 b6 17. Kh2 Be5 18. f4 Bc7 19. Qf3 Rad8 20. Kh1 Ng7 21. g4 f5 22. gxf5 gxf5 23. e5 Kh8 24. Qf2 Ne6 25. Bd5 Rg8 26. Rg1 Rg6 27. Rxg6 hxg6 28. Rg1 Kg7 29. Qg2 Qf7 30. Bxe6 Qxe6 31. Qb7 Qd7 32. Kh2 Bb8 33. Qxd7+ Rxd7 34. Be1 Rd8 35. Bh4 Rg8 36. a4 Bc7 37. Bf6+ Kf7 38. h4 Bd8 39. Bxd8 Rxd8 40. Rb1 Ke6 41. Rg1 Kf7 42. Kh3 Rh8 43. Rg2 Re8 44. Kg3 Rh8 45. Rb2 Rg8 46. Rb5 Ke6 47. a5 Rb8 48. axb6 axb6 49. Rb3 Rb7 50. Ra3 b5 51. cxb5 Rxb5 52. h5 gxh5 53. Kh4 Rb1 54. Ra6+ Kd7 55. Kg5 Rb3 56. Kf6 Rb8 57. e6+ Kc7 58. e7 h4 59. Kf7 Kd7 60. Ra7+ Kd6 61. e8Q Rxe8 62. Kxe8 c4 63. dxc4 Kc5 64. Ke7 d3 65. Ke6 h3 66. Kxf5 h2 67. Ra1 Kxc4 68. Ke4 1-0

[Event "DEN-ch50 Mesterskabet"]
[Site "Aarhus"]
[Date "1959.03.25"]
[Round "5"]
[White "Nielsen, Hartvig"]
[Black "Haahr, Thorkild"]
[Result "1/2-1/2"]
[ECO "C66"]
[PlyCount "80"]
[EventDate "1959.03.22"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "DEN"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Be7 4. 0-0 d6 5. c3 Nf6 6. Re1 0-0 7. d3 Bd7 8. Ba4 Re8 9. Nbd2 Bf8 10. Nf1 g6 11. Ne3 Bg7 12. h3 Rb8 13. Nh2 Rf8 14. Nhg4 Nxg4 15. hxg4 f5 16. gxf5 gxf5 17. exf5 Bxf5 18. Nxf5 Rxf5 19. Qg4 Qf6 20. Bh6 Rf8 21. Bxg7 Qxg7 22. Qxg7+ Kxg7 23. Bxc6 bxc6 24. f3 Rb8 25. b3 Rb5 26. Kf2 Rc5 27. c4 Ra5 28. a4 c5 29. Re4 Ra6 30. Rg4+ Kf7 31. a5 h5 32. Rg3 Rf4 33. Rg5 Rh4 34. Ke3 Rh2 35. f4 Kf6 36. Rg8 Kf7 37. Rg3 h4 38. Rg4 h3 39. gxh3 Rxh3+ 40. Ke4 exf4 1/2-1/2

[Event "DEN-ch50 Mesterskabet"]
[Site "Aarhus"]
[Date "1959.03.24"]
[Round "4"]
[White "Andersen, Borge"]
[Black "Nielsen, Hartvig"]
[Result "0-1"]
[ECO "A19"]
[PlyCount "86"]
[EventDate "1959.03.22"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "DEN"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 e6 3. e4 c5 4. e5 Ng8 5. Nf3 Nc6 6. Be2 d6 7. exd6 Bxd6 8. d4 cxd4 9. Nxd4 Be5 10. Nxc6 Qxd1+ 11. Kxd1 bxc6 12. Kc2 Ne7 13. Be3 Nf5 14. Bc5 Nd4+ 15. Bxd4 Bxd4 16. Bf3 Bb7 17. Nb5 0-0-0 18. Nxd4 Rxd4 19. Kc3 Rhd8 20. Rad1 c5 21. Bxb7+ Kxb7 22. Rxd4 Rxd4 23. Re1 a5 24. Re3 Kc6 25. Rg3 g6 26. Rf3 f5 27. Rh3 h5 28. Rg3 Rg4 29. Re3 Rxg2 30. Rxe6+ Kd7 31. Ra6 g5 32. Rxa5 Rxh2 33. Rxc5 Rxf2 34. a4 h4 35. a5 h3 36. a6 h2 37. Rd5+ Kc7 38. Rd1 Kb6 39. Rd6+ Ka7 40. Rh6 g4 41. Kb4 Rxb2+ 42. Ka5 g3 43. Rh7+ Ka8 0-1

[Event "DEN-ch50 Mesterskabet"]
[Site "Aarhus"]
[Date "1959.03.23"]
[Round "3"]
[White "Nielsen, Hartvig"]
[Black "Blom, Kaj"]
[Result "1-0"]
[ECO "A80"]
[PlyCount "81"]
[EventDate "1959.03.22"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "DEN"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 f5 2. Bg5 Nf6 3. Bxf6 exf6 4. e3 d5 5. Bd3 Nc6 6. c3 Bd6 7. Ne2 Ne7 8. Nf4 c6 9. Qh5+ g6 10. Qh6 Kf7 11. g3 Qf8 12. Qh3 Bd7 13. Nd2 a5 14. Qg2 b5 15. h4 Nc8 16. Nxd5 Kg7 17. Nf4 Nb6 18. h5 Qf7 19. h6+ Kf8 20. Bc2 a4 21. 0-0 g5 22. Nd3 Nc4 23. Nxc4 Qxc4 24. Qf3 a3 25. e4 b4 26. Bb3 g4 27. Qe3 Qa6 28. cxb4 fxe4 29. Nc5 Bxc5 30. dxc5 axb2 31. Rad1 b1Q 32. Rxb1 Qd3 33. Rbd1 Qxe3 34. fxe3 Ke7 35. Rd6 Rhf8 36. Rfd1 Ra7 37. a4 Rb8 38. R1d4 f5 39. a5 Rab7 40. Kf2 Ra7 41. Ke2 1-0

[Event "DEN-ch50 Mesterskabet"]
[Site "Aarhus"]
[Date "1959.03.23"]
[Round "2"]
[White "Petersen, Finn"]
[Black "Nielsen, Hartvig"]
[Result "1/2-1/2"]
[ECO "C86"]
[PlyCount "131"]
[EventDate "1959.03.22"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "DEN"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Qe2 b5 7. Bb3 0-0 8. a4 b4 9. a5 Nd4 10. Nxd4 exd4 11. e5 Ne8 12. Qe4 Rb8 13. Qxd4 c5 14. Qe3 Rb5 15. d3 Rxa5 16. Rxa5 Qxa5 17. Nd2 Qd8 18. Ne4 d5 19. exd6 Nxd6 20. Nxd6 Bxd6 21. Re1 Bd7 22. Qf3 Qc7 23. h3 Bc6 24. Bd5 Re8 25. Rxe8+ Bxe8 26. Qe4 Qe7 27. Qxe7 Bxe7 28. Kf1 a5 29. b3 a4 30. bxa4 Bxa4 31. Bb3 Bc6 32. Bb2 Kf8 33. f3 Bd6 34. Kf2 f6 35. Ke3 Bh2 36. Kf2 Be5 37. Bxe5 fxe5 38. Ke3 Ke7 39. g3 g5 40. Kf2 Kd6 41. Ke3 Bd5 42. Ba4 Ba2 43. Ke4 Bd5+ 44. Ke3 c4 45. dxc4 Bxc4 46. h4 gxh4 47. gxh4 Bf7 48. Bb3 Bg6 49. Kd2 Bh5 50. Ke3 Ke7 51. Ke4 Kf6 52. Ke3 Bg6 53. Ba4 Bf5 54. f4 h6 55. Bb3 Bd7 56. Bc4 Bf5 57. Bb3 Bg6 58. Ba4 Ke6 59. fxe5 Kxe5 60. Bb3 Bf5 61. Ba4 Be6 62. Kd3 Kf4 63. Kd4 Kg4 64. Kc5 Kxh4 65. Kxb4 Kg5 66. Be8 1/2-1/2

[Event "DEN-ch50 Mesterskabet"]
[Site "Aarhus"]
[Date "1959.03.22"]
[Round "1"]
[White "Nielsen, Hartvig"]
[Black "Pedersen, Eigil"]
[Result "1/2-1/2"]
[ECO "A70"]
[PlyCount "118"]
[EventDate "1959.03.22"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "DEN"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 c5 4. d5 exd5 5. cxd5 d6 6. e4 g6 7. Nf3 Bg7 8. Nd2 0-0 9. Bd3 a6 10. a4 Nbd7 11. 0-0 Ne5 12. Be2 Qc7 13. f4 Ned7 14. Bf3 Rb8 15. Qe2 Ne8 16. Kh1 b6 17. Ra3 Qd8 18. Nc4 Qe7 19. Re1 f6 20. Rb3 Nc7 21. f5 b5 22. Na5 Ne5 23. Bf4 Bd7 24. Bxe5 fxe5 25. fxg6 b4 26. gxh7+ Kh8 27. Nd1 Bxa4 28. Rd3 Bb5 29. Nc6 Bxc6 30. dxc6 Ne6 31. Ne3 Nf4 32. Nd5 Nxd5 33. Rxd5 Rb6 34. Ra1 Ra8 35. Bg4 Rxc6 36. Bf5 c4 37. Rb5 c3 38. Rxb4 d5 39. bxc3 Rxc3 40. Rba4 Qc5 41. g4 Rc2 42. Qd3 Rc1+ 43. Rxc1 Qxc1+ 44. Kg2 Rb8 45. Ra2 dxe4 46. Bxe4 Rb2+ 47. Rxb2 Qxb2+ 48. Kf3 Qd4 49. Qb3 Qd8 50. Kg3 Qf8 51. Kg2 Qd8 52. Qa2 Bh6 53. Kf3 Qd1+ 54. Qe2 Qxe2+ 55. Kxe2 Bg5 56. Kd3 a5 57. Kc4 Bf4 58. h4 Bg3 59. h5 Bf4 1/2-1/2

[Event "DEN-ch49 Mesterskabet"]
[Site "Herning"]
[Date "1958.04.??"]
[Round "?"]
[White "Nielsen, Axel"]
[Black "Nielsen, Hartvig"]
[Result "1-0"]
[ECO "A40"]
[PlyCount "55"]
[EventDate "1958.04.03"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "DEN"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. Nf3 c5 2. e3 g6 3. d4 Bg7 4. Bd3 d6 5. 0-0 Nc6 6. d5 Ne5 7. Nxe5 dxe5 8. e4 Nf6 9. c4 0-0 10. Nc3 Ne8 11. Be3 b6 12. Qc2 Nd6 13. a3 f5 14. f3 e6 15. b4 exd5 16. Nxd5 fxe4 17. fxe4 Rxf1+ 18. Rxf1 cxb4 19. axb4 Be6 20. c5 bxc5 21. bxc5 Nc8 22. c6 Kh8 23. c7 Qd6 24. Rb1 Bf8 25. Rb5 Bxd5 26. Rxd5 Qb4 27. Bf1 Nd6 28. Bc5 1-0

[Event "DEN-ch49 Mesterskabet"]
[Site "Herning"]
[Date "1958.04.??"]
[Round "?"]
[White "Nielsen, Hartvig"]
[Black "Poulsen, Christian"]
[Result "1-0"]
[ECO "E09"]
[PlyCount "76"]
[EventDate "1958.04.03"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "DEN"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 c6 5. Nd2 Be7 6. Ngf3 Nbd7 7. 0-0 0-0 8. Qc2 b6 9. e4 Bb7 10. b3 c5 11. exd5 exd5 12. Bb2 Rc8 13. dxc5 dxc4 14. Nxc4 b5 15. Ne3 Be4 16. Qe2 Nxc5 17. Rfd1 Qb6 18. Nd4 a6 19. Ndf5 Rfe8 20. Nxe7+ Rxe7 21. Nf5 Re6 22. Rd6 Rc6 23. Rxc6 Bxc6 24. Qf1 Nce4 25. Nd4 Re8 26. Nxc6 Qxc6 27. Re1 Qc5 28. Bxf6 Nxf6 29. Rxe8+ Nxe8 30. Qd3 Nd6 31. Qd5 Qxd5 32. Bxd5 a5 33. a3 Kf8 34. Kf1 Ke7 35. Ke2 Kf6 36. f4 b4 37. a4 Ke7 38. Kd3 Nf5 1-0

[Event "DEN-ch48 Mesterskabet"]
[Site "Odense"]
[Date "1957.??.??"]
[Round "3"]
[White "Nielsen, Hartvig"]
[Black "Andersen, Borge"]
[Result "1-0"]
[ECO "B96"]
[PlyCount "97"]
[EventDate "1957.??.??"]
[EventType "tourn"]
[EventRounds "10"]
[EventCountry "DEN"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Bd7 8. Qf3 Nc6 9. Nxc6 Bxc6 10. 0-0-0 Be7 11. Bd3 Qa5 12. Kb1 0-0 13. Qh3 h6 14. Bh4 Rfe8 15. g4 b5 16. Rde1 b4 17. Nd1 Qc7 18. g5 hxg5 19. fxg5 Nd7 20. g6 Bxh4 21. gxf7+ Kxf7 22. Qxh4 Ne5 23. Rhf1+ Kg8 24. Re3 Qe7 25. Qh5 g6 26. Rg1 Qg7 27. Reg3 Kf7 28. Rxg6 Nxg6 29. e5 Rg8 30. Rxg6 Qxg6 31. Bxg6+ Rxg6 32. exd6 Rd8 33. Qc5 Bd7 34. c4 bxc3 35. Nxc3 Rc8 36. Qa7 Ke8 37. a4 Rc6 38. Qd4 Kd8 39. Qh4+ Kc8 40. Qh8+ Kb7 41. Qe5 Rg1+ 42. Ka2 Rf1 43. Ne4 Rf5 44. Qg7 Kc8 45. Qh8+ Kb7 46. Qd8 Rf7 47. a5 Bc8 48. Nc5+ Kb8 49. d7 1-0

[Event "DEN-ch48 Mesterskabet"]
[Site "Odense"]
[Date "1957.??.??"]
[Round "?"]
[White "Nielsen, Hartvig"]
[Black "Pedersen, Eigil"]
[Result "0-1"]
[ECO "B07"]
[PlyCount "70"]
[EventDate "1957.??.??"]
[EventType "tourn"]
[EventRounds "10"]
[EventCountry "DEN"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Be2 Bg7 5. h4 h5 6. Bg5 c6 7. Qd2 b5 8. a3 Nbd7 9. Nf3 Qb6 10. Rd1 Ng4 11. 0-0 a6 12. Ne1 Nf8 13. d5 c5 14. Bxg4 Bxg4 15. f3 Bd7 16. Be3 Qc7 17. Rb1 Bf6 18. g3 Nh7 19. Nd3 a5 20. e5 Bg7 21. Ne4 dxe5 22. Bxc5 f5 23. Ng5 Nf6 24. Ne6 Bxe6 25. dxe6 e4 26. Qg5 0-0-0 27. Bf2 Bh6 28. Qxg6 Rdg8 29. Qxf5 Rxg3+ 30. Kh1 Rxf3 31. Qe5 exd3 32. Qxc7+ Kxc7 33. cxd3 Rxd3 34. Rbd1 Rhd8 35. Rde1 Rg8 0-1

[Event "DEN-ch47"]
[Site "Copenhagen"]
[Date "1956.03.31"]
[Round "9"]
[White "Andersen, Borge"]
[Black "Nielsen, Hartvig"]
[Result "0-1"]
[ECO "D50"]
[PlyCount "64"]
[EventDate "1956.03.25"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "DEN"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 c5 5. cxd5 cxd4 6. Qxd4 Nc6 7. Qd2 exd5 8. Bxf6 gxf6 9. Qxd5 Qxd5 10. Nxd5 Nb4 11. Nc7+ Kd8 12. Nxa8 Nc2+ 13. Kd2 Nxa1 14. Nf3 Be6 15. Kc3 Bd6 16. b3 Ke7 17. Kb2 Rc8 18. e3 Nc2 19. Bd3 Ba3+ 20. Kb1 Nb4 21. Bxh7 Rxa8 22. Nd4 Nd5 23. h4 Rh8 24. Bf5 Bc5 25. Nxe6 fxe6 26. Bg6 f5 27. h5 Kf6 28. Rc1 Ba3 29. Rc4 b5 30. Rc6 Nb4 31. Rd6 Rc8 32. Rd1 Rc2 0-1

[Event "DEN-ch47"]
[Site "Copenhagen"]
[Date "1956.03.29"]
[Round "6"]
[White "Nielsen, Hartvig"]
[Black "Larsen, Bent"]
[Result "0-1"]
[ECO "B96"]
[PlyCount "112"]
[EventDate "1956.03.25"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "DEN"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Bd7 8. Qf3 Nc6 9. 0-0-0 Nxd4 10. Rxd4 Bc6 11. f5 b5 12. fxe6 fxe6 13. Bxf6 Qxf6 14. Qxf6 gxf6 15. Be2 Bh6+ 16. Kb1 Bf4 17. Bf3 Be5 18. Rd3 Ke7 19. Nd1 h5 20. Nf2 Rag8 21. Ra3 Bb7 22. Rb3 Bd4 23. Nd3 e5 24. Re1 Rb8 25. Nb4 Bc5 26. Nd3 Bb6 27. Re2 Rhg8 28. Nb4 h4 29. Rd3 Rbf8 30. Nd5+ Bxd5 31. Rxd5 f5 32. Rd1 fxe4 33. Bxe4 Rg4 34. h3 Rg3 35. a3 a5 36. Rd3 Rf1+ 37. Ka2 Rf4 38. Bc6 Rxd3 39. cxd3 b4 40. axb4 Rxb4 41. Re4 Bd4 42. b3 Rb6 43. Bd5 Rb5 44. Bc4 Rc5 45. Rxh4 d5 46. b4 axb4 47. Bb3 Rc3 48. Bxd5 Rxd3 49. Rg4 Kd6 50. Bg8 Kc5 51. Rg7 Ra3+ 52. Kb1 b3 53. Bxb3 Rxb3+ 54. Kc2 Rb2+ 55. Kd3 e4+ 56. Kxe4 Bxg7 0-1

[Event "DEN-ch47"]
[Site "Copenhagen"]
[Date "1956.03.27"]
[Round "4"]
[White "Nielsen, Hartvig"]
[Black "Poulsen, Christian"]
[Result "0-1"]
[ECO "C90"]
[PlyCount "110"]
[EventDate "1956.03.25"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "DEN"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Re1 b5 7. Bb3 d6 8. c3 0-0 9. d3 Na5 10. Bc2 c5 11. Nbd2 Qc7 12. Nf1 Nc6 13. Ne3 Rd8 14. Nd5 Nxd5 15. exd5 Nb8 16. c4 Bf5 17. h3 Bg6 18. Nh2 Re8 19. Be3 Nd7 20. Qd2 f5 21. Bg5 Qd8 22. Bxe7 Qxe7 23. b3 Qf6 24. Rab1 b4 25. a3 a5 26. a4 Re7 27. Re2 Rae8 28. f3 Qh4 29. Qe3 Qf6 30. Rbe1 Kf8 31. Qf2 Kg8 32. g3 h5 33. Nf1 Bh7 34. Kh2 f4 35. g4 hxg4 36. hxg4 Kf7 37. Nd2 Rh8 38. Kg2 Ree8 39. Rh1 Bg6 40. Ree1 e4 41. fxe4 Qg5 42. Bd1 Ne5 43. Ref1 Nxd3 44. Qg3 Rxh1 45. Kxh1 Rh8+ 46. Kg1 Qh6 47. Qg2 Ke7 48. Bf3 Qh4 49. Be2 Ne1 50. Nf3 Nxg2 51. Nxh4 Nxh4 52. Rxf4 Rf8 53. Rxf8 Kxf8 54. Kf2 Bxe4 55. Kg3 Ng6 0-1

[Event "DEN-ch47"]
[Site "Copenhagen"]
[Date "1956.03.26"]
[Round "2"]
[White "Ravn, Palle"]
[Black "Nielsen, Hartvig"]
[Result "1-0"]
[ECO "C63"]
[PlyCount "31"]
[EventDate "1956.03.25"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "DEN"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 f5 4. Nc3 Nd4 5. Ba4 c6 6. d3 d6 7. Nxd4 exd4 8. Ne2 Qa5+ 9. c3 fxe4 10. Nxd4 b5 11. Bb3 c5 12. Bd5 Nf6 13. Bxa8 cxd4 14. dxe4 dxc3 15. 0-0 Be7 16. Qb3 1-0

[Event "DEN-ch47"]
[Site "Copenhagen"]
[Date "1956.03.25"]
[Round "1"]
[White "Nielsen, Hartvig"]
[Black "Ingerslev, Age"]
[Result "0-1"]
[ECO "C12"]
[PlyCount "72"]
[EventDate "1956.03.25"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "DEN"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 e6 2. e4 d5 3. Nc3 Nf6 4. Bg5 Bb4 5. e5 h6 6. Bd2 Bxc3 7. Bxc3 Ne4 8. Nf3 c5 9. Bb5+ Bd7 10. Bxd7+ Nxd7 11. 0-0 Nxc3 12. bxc3 Rc8 13. Qd2 0-0 14. Rfe1 Nb6 15. a4 Rc6 16. Reb1 Qd7 17. Qe2 Nc4 18. Ra2 Rfc8 19. g3 Ra6 20. Kg2 Rc7 21. Rba1 Ra5 22. Ne1 Nb6 23. Nd3 cxd4 24. cxd4 Nxa4 25. Nc5 Raxc5 26. dxc5 Nc3 27. Qe3 d4 28. Qf3 Nxa2 29. Rxa2 a6 30. Rb2 Qe7 31. h4 Qxc5 32. Rxb7 Rxb7 33. Qxb7 Qxc2 34. Qa8+ Kh7 35. Qxa6 Qe4+ 36. Kf1 d3 0-1

[Event "DEN-ch46 Mesterskabet"]
[Site "Aalborg"]
[Date "1955.04.10"]
[Round "10"]
[White "Larsen, Bent"]
[Black "Nielsen, Hartvig"]
[Result "1-0"]
[ECO "E09"]
[PlyCount "41"]
[EventDate "1955.04.03"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "DEN"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 e6 3. Bg2 d5 4. 0-0 Be7 5. c4 0-0 6. d4 Nbd7 7. Qc2 c6 8. Nbd2 b6 9. e4 dxe4 10. Nxe4 Bb7 11. Bf4 Nxe4 12. Qxe4 Nf6 13. Qe2 c5 14. Rfd1 Qc8 15. d5 Nh5 16. Bg5 Bd8 17. Bxd8 Rxd8 18. Ng5 g6 19. dxe6 Rxd1+ 20. Rxd1 f6 21. e7 1-0

[Event "DEN-ch46 Mesterskabet"]
[Site "Aalborg"]
[Date "1955.04.??"]
[Round "1"]
[White "Andersen, Borge"]
[Black "Nielsen, Hartvig"]
[Result "1-0"]
[ECO "E80"]
[PlyCount "131"]
[EventDate "1955.04.03"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "DEN"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 g6 4. Nc3 Bg7 5. e4 d6 6. f3 Na6 7. Be3 Nc7 8. Bd3 a6 9. Nge2 Bd7 10. a4 Rb8 11. a5 0-0 12. 0-0 e5 13. Qd2 b5 14. axb6 Rxb6 15. Na2 a5 16. Qxa5 Qb8 17. Rfb1 Qb7 18. Qd2 Na6 19. b4 Nxb4 20. Nxb4 Rxb4 21. Rxb4 cxb4 22. Ra7 Qb8 23. Ra6 Rc8 24. Rb6 Qc7 25. Qxb4 Bf8 26. Rb7 Qd8 27. Bb6 Qe8 28. Bc7 Qe7 29. Bb8 Ne8 30. Bc2 Qd8 31. Nc3 Nc7 32. Bxc7 Rxc7 33. Qb6 Rc8 34. Qxd8 Rxd8 35. Ba4 Bxa4 36. Nxa4 Ra8 37. Nb6 Ra1+ 38. Kf2 Bh6 39. Nc8 Ra2+ 40. Kg3 Ra6 41. Rd7 Bf8 42. Ra7 Rxa7 43. Nxa7 f6 44. Kf2 Kf7 45. Ke3 Ke7 46. Kd3 Kd7 47. Kc3 Kc7 48. Kb4 Kb6 49. Nb5 h5 50. Nc3 Be7 51. Na4+ Ka6 52. c5 Bf8 53. c6 Bh6 54. Nc5+ dxc5+ 55. Kxc5 Bf8+ 56. d6 h4 57. h3 Ka7 58. Kd5 Kb6 59. c7 Kb7 60. Ke6 Kc8 61. d7+ Kxc7 62. Kf7 Kxd7 63. Kxf8 Ke6 64. Kg7 g5 65. Kf8 f5 66. Kg7 1-0

[Event "DEN-ch46 Mesterskabet"]
[Site "Aalborg"]
[Date "1955.04.??"]
[Round "9"]
[White "Enevoldsen, Jens"]
[Black "Nielsen, Hartvig"]
[Result "1-0"]
[ECO "C41"]
[PlyCount "69"]
[EventDate "1955.04.03"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "DEN"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 d6 3. d4 Nd7 4. Nc3 Ngf6 5. Bc4 Be7 6. 0-0 0-0 7. Re1 c6 8. a4 Qc7 9. Bg5 exd4 10. Nxd4 Ne5 11. Bf1 Re8 12. h3 Nfd7 13. Be3 Bf8 14. Qd2 Nc5 15. Rad1 g6 16. Ndb5 cxb5 17. Nd5 Qd8 18. Bg5 Be7 19. Nxe7+ Rxe7 20. axb5 Bxh3 21. f4 Bg4 22. fxe5 Bxd1 23. exd6 f6 24. Bxf6 Bg4 25. Bxe7 Qb6 26. Qf2 Ne6 27. Qxb6 axb6 28. Bc4 Kg7 29. Rf1 Rc8 30. b3 Nc5 31. Rf7+ Kh6 32. e5 Be6 33. Bxe6 Nxe6 34. Rf6 Nd8 35. e6 1-0

[Event "Match/Nation DDR-DEN"]
[Site "Berlin East"]
[Date "1955.??.??"]
[Round "2.5"]
[White "Herrmann, Ludwig"]
[Black "Nielsen, Hartvig"]
[Result "1/2-1/2"]
[ECO "D36"]
[PlyCount "95"]
[EventDate "1955.11.??"]
[EventType "team-match"]
[EventRounds "2"]
[EventCountry "DDR"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 e6 3. d4 d5 4. cxd5 exd5 5. Bg5 Be7 6. Qc2 c6 7. e3 0-0 8. Bd3 h6 9. h4 Re8 10. Bf4 Bd6 11. Bxd6 Qxd6 12. Nf3 Nbd7 13. 0-0-0 b5 14. Kb1 Nb6 15. Ne5 Nc4 16. Bxc4 bxc4 17. Ka1 Re7 18. e4 Rb8 19. Nxc4 dxc4 20. e5 Qb4 21. exf6 Bf5 22. Qc1 Reb7 23. d5 Qxb2+ 24. Qxb2 Rxb2 25. dxc6 Rc2 26. c7 Rb7 27. Rc1 Rxc7 28. Nd5 Rc5 29. Ne7+ Kh7 30. fxg7 Rxc1+ 31. Rxc1 Kxg7 32. Nxf5+ Rxf5 33. Rxc4 Rxf2 34. g4 Rh2 35. h5 Rg2 36. Kb1 Kf6 37. Ra4 Kg5 38. Rxa7 Kxg4 39. Rxf7 Kxh5 40. a4 Kg6 41. Rf3 h5 42. a5 h4 43. a6 Re2 44. a7 Re8 45. Ra3 Ra8 46. Kc1 Kg5 47. Kd1 Kg4 48. Ke2 1/2-1/2

[Event "Match/Nation DDR-DEN"]
[Site "Berlin East"]
[Date "1955.??.??"]
[Round "1.5"]
[White "Nielsen, Hartvig"]
[Black "Herrmann, Ludwig"]
[Result "0-1"]
[ECO "C86"]
[PlyCount "68"]
[EventDate "1955.11.??"]
[EventType "team-match"]
[EventRounds "2"]
[EventCountry "DDR"]
[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. 0-0 Be7 6. Qe2 b5 7. Bb3 d6 8. c3 0-0 9. a4 Bg4 10. Rd1 b4 11. d4 exd4 12. cxd4 d5 13. exd5 Na5 14. Bc2 Re8 15. Bg5 Qxd5 16. Bxf6 Bxf6 17. Qd3 g6 18. h3 Bxf3 19. Qxf3 Qxf3 20. gxf3 Re2 21. Be4 Rd8 22. Kf1 Rxb2 23. Rd2 Rxd2 24. Nxd2 Rxd4 25. Rd1 c5 26. Ke2 c4 27. Nf1 b3 28. Ne3 Rxd1 29. Kxd1 Bd4 30. Kd2 c3+ 31. Kd3 Bxe3 32. fxe3 c2 33. Kd2 Nc4+ 34. Kc1 Nxe3 0-1

[Event "DEN-ch45 Mesterskabet"]
[Site "Aarhus"]
[Date "1954.??.??"]
[Round "8"]
[White "Nielsen, Hartvig"]
[Black "Poulsen, Christian"]
[Result "1-0"]
[ECO "A56"]
[PlyCount "45"]
[EventDate "1954.??.??"]
[EventType "tourn"]
[EventRounds "10"]
[EventCountry "DEN"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 e5 4. Nc3 d6 5. e4 Be7 6. f4 exf4 7. Bxf4 0-0 8. Be2 b5 9. cxb5 Re8 10. Nf3 Nh5 11. Bd2 Bh4+ 12. g3 Bf6 13. 0-0 Bh3 14. Rf2 g6 15. e5 dxe5 16. Ne4 Qxd5 17. Nfg5 Bf5 18. Bxh5 Bxg5 19. Nxg5 e4 20. Be3 Qe5 21. Qb3 Re7 22. Raf1 Nd7 23. Nxf7 1-0

[Event "Copenhagen-ch34"]
[Site "Copenhagen"]
[Date "1953.02.12"]
[Round "3"]
[White "Nielsen, Hartvig"]
[Black "Larsen, Bent"]
[Result "1-0"]
[ECO "E33"]
[PlyCount "109"]
[EventDate "1953.02.05"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "DEN"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 Nc6 5. Nf3 d5 6. a3 Be7 7. e3 0-0 8. Bd3 dxc4 9. Bxc4 e5 10. dxe5 Ng4 11. Nd5 Ncxe5 12. Nxe5 Nxe5 13. Nxe7+ Qxe7 14. Be2 a5 15. 0-0 f5 16. Bd2 Be6 17. Rac1 Rfd8 18. Rfd1 Qf7 19. Qc3 Nc6 20. Be1 Bb3 21. Bb5 Rxd1 22. Rxd1 Na7 23. Be2 b6 24. Rc1 c5 25. Kf1 Nc6 26. Qxb3 Qxb3 27. Bc4+ Qxc4+ 28. Rxc4 Ne5 29. Rc3 a4 30. f4 Ng4 31. h3 Nf6 32. Rd3 b5 33. Bc3 Rb8 34. Bxf6 gxf6 35. Rd5 b4 36. Rxc5 bxa3 37. bxa3 Rb3 38. Kf2 Rxa3 39. Rxf5 Kf7 40. Ra5 Ra1 41. f5 h5 42. Ra7+ Kg8 43. Kg3 Ra2 44. Kf3 a3 45. g4 Ra1 46. gxh5 a2 47. Ke4 Kh8 48. h4 Kg8 49. h6 Kh8 50. h7 Rh1 51. Rxa2 Rxh4+ 52. Kd5 Kg7 53. e4 Rg4 54. Rh2 Kh8 55. Rh6 1-0

[Event "Olympiad-09"]
[Site "Dubrovnik"]
[Date "1950.09.10"]
[Round "15"]
[White "Boulahanis, Ioannis"]
[Black "Nielsen, Hartvig"]
[Result "0-1"]
[ECO "D30"]
[PlyCount "56"]
[EventDate "1950.08.20"]
[EventType "team-tourn"]
[EventRounds "15"]
[EventCountry "YUG"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]
[WhiteTeam "Greece"]
[BlackTeam "Denmark"]
[WhiteTeamCountry "GRE"]
[BlackTeamCountry "DEN"]

1. d4 e6 2. Nf3 Nf6 3. Bg5 Be7 4. Nbd2 d5 5. c4 Nbd7 6. e3 0-0 7. Bd3 c5 8. 0-0 b6 9. Rc1 Bb7 10. Qc2 h6 11. Bh4 Rc8 12. Qb1 cxd4 13. exd4 Nh5 14. Bxe7 Qxe7 15. cxd5 Bxd5 16. Be4 Nf4 17. Rxc8 Rxc8 18. Re1 Qd6 19. g3 Nh3+ 20. Kg2 Ng5 21. Nxg5 hxg5 22. Rc1 Rxc1 23. Qxc1 Bxe4+ 24. Nxe4 Qd5 25. f3 g4 26. Qg5 gxf3+ 27. Kxf3 f5 28. Qd8+ Kf7 0-1

[Event "Olympiad-09"]
[Site "Dubrovnik"]
[Date "1950.09.08"]
[Round "14"]
[White "Nielsen, Hartvig"]
[Black "Lindquist, Sture"]
[Result "0-1"]
[ECO "D47"]
[PlyCount "104"]
[EventDate "1950.08.20"]
[EventType "team-tourn"]
[EventRounds "15"]
[EventCountry "YUG"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]
[WhiteTeam "Denmark"]
[BlackTeam "Sweden"]
[WhiteTeamCountry "DEN"]
[BlackTeamCountry "SWE"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 Nbd7 5. e3 c6 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 b4 9. Ne4 Be7 10. Nxf6+ Nxf6 11. Ne5 Bb7 12. Qa4 Qd5 13. 0-0 0-0 14. Bc4 Qd6 15. Ba6 Bxa6 16. Qxa6 c5 17. Qxd6 Bxd6 18. Nc4 Be7 19. dxc5 Bxc5 20. Bd2 Rfd8 21. Rfc1 a5 22. Kf1 Ne4 23. Ke2 Be7 24. f3 Nxd2 25. Nxd2 Bf6 26. Rc2 g6 27. Rd1 Rdc8 28. Nc4 Bxb2 29. Rd7 Bf6 30. Kd1 Rd8 31. Rcd2 Rxd7 32. Rxd7 a4 33. Kc2 b3+ 34. Kb1 Rc8 35. axb3 axb3 36. Rxf7 Bg7 37. Rf4 Ra8 38. Kc1 Ra1+ 39. Kd2 b2 40. Nxb2 Bxb2 41. h4 Bc1+ 42. Ke2 Ra2+ 43. Kf1 Bxe3 44. Re4 Ba7 45. Rxe6 Rf2+ 46. Ke1 Rxg2 47. h5 g5 48. Rc6 Be3 49. h6 Kf7 50. Ra6 Rf2 51. Ra3 Rxf3 52. Ke2 Rg3 0-1

[Event "Olympiad-09"]
[Site "Dubrovnik"]
[Date "1950.09.07"]
[Round "13"]
[White "Rabar, Braslav"]
[Black "Nielsen, Hartvig"]
[Result "1-0"]
[ECO "D61"]
[PlyCount "69"]
[EventDate "1950.08.20"]
[EventType "team-tourn"]
[EventRounds "15"]
[EventCountry "YUG"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]
[WhiteTeam "Yugoslavia"]
[BlackTeam "Denmark"]
[WhiteTeamCountry "YUG"]
[BlackTeamCountry "DEN"]

1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. Bg5 Nbd7 5. e3 Be7 6. Qc2 c6 7. Rd1 0-0 8. Nf3 b6 9. Bd3 Bb7 10. 0-0 dxc4 11. Bxc4 Nd5 12. Bxe7 Qxe7 13. e4 Nxc3 14. Qxc3 c5 15. d5 exd5 16. exd5 Qf6 17. Qxf6 Nxf6 18. Ne5 a6 19. a4 b5 20. axb5 axb5 21. Bxb5 Nxd5 22. Nd7 Rfc8 23. Bc4 Nf4 24. Nb6 Bxg2 25. Nxc8 Rxc8 26. Rfe1 Bh3 27. Re7 Be6 28. Bxe6 Nxe6 29. Rdd7 Rf8 30. Kf1 g6 31. Ke2 Nd4+ 32. Kd3 Nc6 33. Re2 Rd8 34. Rxd8+ Nxd8 35. Re8+ 1-0

[Event "Olympiad-09"]
[Site "Dubrovnik"]
[Date "1950.09.05"]
[Round "12"]
[White "Nielsen, Hartvig"]
[Black "Opsahl, Haakon"]
[Result "1-0"]
[ECO "C86"]
[PlyCount "113"]
[EventDate "1950.08.20"]
[EventType "team-tourn"]
[EventRounds "15"]
[EventCountry "YUG"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]
[WhiteTeam "Denmark"]
[BlackTeam "Norway"]
[WhiteTeamCountry "DEN"]
[BlackTeamCountry "NOR"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Qe2 b5 7. Bb3 d6 8. a4 Bg4 9. c3 0-0 10. Rd1 Rb8 11. axb5 axb5 12. d4 Ra8 13. Rxa8 Qxa8 14. Na3 b4 15. Nb5 bxc3 16. bxc3 Qb7 17. Bc4 Na5 18. Bd3 h6 19. h3 Bxf3 20. Qxf3 c6 21. Na3 Nb3 22. Be3 d5 23. Nc2 dxe4 24. Bxe4 Nxe4 25. Qxe4 exd4 26. cxd4 Na5 27. Ne1 Qd7 28. Rc1 f5 29. Qc2 Qd5 30. Nf3 Bf6 31. Qa4 Qb5 32. Qa2+ Qd5 33. Qxd5+ cxd5 34. Rc5 Nb7 35. Rxd5 Bd8 36. Ne5 Bc7 37. f4 Rd8 38. Rxd8+ Bxd8 39. Bc1 Be7 40. Kf2 Bd6 41. Ke3 Kf8 42. d5 Bc7 43. Kd3 Ke7 44. Kc4 Bd6 45. Kb5 g5 46. Nc6+ Kf6 47. Bb2+ Kf7 48. Ne5+ Ke7 49. fxg5 hxg5 50. Kb6 Nc5 51. Kc6 Ne4 52. Nc4 Bf4 53. d6+ Kd8 54. Ne5 Bxe5 55. Bxe5 g4 56. d7 gxh3 57. Bc7+ 1-0

[Event "Olympiad-09"]
[Site "Dubrovnik"]
[Date "1950.09.04"]
[Round "11"]
[White "Rellstab, Ludwig Sr"]
[Black "Nielsen, Hartvig"]
[Result "1/2-1/2"]
[ECO "C17"]
[PlyCount "61"]
[EventDate "1950.08.20"]
[EventType "team-tourn"]
[EventRounds "15"]
[EventCountry "YUG"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]
[WhiteTeam "Germany"]
[BlackTeam "Denmark"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "DEN"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. Bd2 Ne7 6. Nb5 Bxd2+ 7. Qxd2 0-0 8. c3 Nbc6 9. f4 cxd4 10. cxd4 Nf5 11. Nf3 a6 12. Nc3 Bd7 13. Be2 Rc8 14. 0-0 Qb6 15. Rfd1 Na5 16. b3 Rc7 17. Bd3 Nxd4 18. Bxh7+ Kxh7 19. Nxd4 Rfc8 20. Nce2 Bb5 21. Kh1 Nc6 22. Nf3 Qf2 23. Ned4 Qxd2 24. Rxd2 Nxd4 25. Nxd4 Rc1+ 26. Rd1 Rxa1 27. Rxa1 Bd3 28. Kg1 Be4 29. Kf2 Rc3 30. Rd1 Kh6 31. Rd2 1/2-1/2

[Event "Olympiad-09"]
[Site "Dubrovnik"]
[Date "1950.09.03"]
[Round "10"]
[White "Nielsen, Hartvig"]
[Black "Heikinheimo, Harras"]
[Result "1-0"]
[ECO "D77"]
[PlyCount "86"]
[EventDate "1950.08.20"]
[EventType "team-tourn"]
[EventRounds "15"]
[EventCountry "YUG"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]
[WhiteTeam "Denmark"]
[BlackTeam "Finland"]
[WhiteTeamCountry "DEN"]
[BlackTeamCountry "FIN"]

1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 d5 5. Nf3 0-0 6. 0-0 dxc4 7. Na3 c5 8. Nxc4 Nc6 9. dxc5 Be6 10. Nfe5 Nxe5 11. Nxe5 Qc7 12. Nd3 Rfd8 13. Bf4 Qd7 14. Qc2 Nd5 15. Rfd1 Rac8 16. e4 Nxf4 17. Nxf4 Qc6 18. e5 Qc7 19. Rxd8+ Rxd8 20. Nxe6 fxe6 21. f4 Rd4 22. h4 Qd7 23. Bf3 Rd2 24. Rd1 Qd4+ 25. Kh1 Rxc2 26. Rxd4 Rxc5 27. Bxb7 Rc1+ 28. Kg2 Rc2+ 29. Kf3 Rxb2 30. Bc8 Kf7 31. Ra4 Rb8 32. Ba6 Rb6 33. Bc4 Rc6 34. Bb3 h6 35. Ke4 a6 36. Bc4 a5 37. Kd4 Rc7 38. Rxa5 Rd7+ 39. Kc3 Rc7 40. Ra6 g5 41. h5 gxf4 42. gxf4 Ke8 43. Kd4 Rd7+ 1-0

[Event "Olympiad-09"]
[Site "Dubrovnik"]
[Date "1950.08.25"]
[Round "5"]
[White "Nielsen, Hartvig"]
[Black "Donner, Jan Hein"]
[Result "0-1"]
[ECO "C86"]
[PlyCount "74"]
[EventDate "1950.08.20"]
[EventType "team-tourn"]
[EventRounds "15"]
[EventCountry "YUG"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]
[WhiteTeam "Denmark"]
[BlackTeam "Netherlands"]
[WhiteTeamCountry "DEN"]
[BlackTeamCountry "NED"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Qe2 b5 7. Bb3 d6 8. a4 Rb8 9. axb5 axb5 10. c3 Be6 11. Bxe6 fxe6 12. d4 exd4 13. cxd4 Qd7 14. Rd1 d5 15. Nbd2 0-0 16. Ne5 Qe8 17. exd5 Nxd5 18. Nb3 Nxe5 19. Qxe5 Bd6 20. Qe4 Qh5 21. Rd3 Qxh2+ 22. Kf1 Qh1+ 23. Ke2 Qh5+ 24. Rf3 Rxf3 25. Qxf3 Qg6 26. Nd2 Rf8 27. Qe4 Nf4+ 28. Kf1 Qg5 29. Qf3 Qh4 30. g3 Qh3+ 31. Kg1 Nd5 32. Qg2 Qg4 33. Qe4 Nf4 34. b3 Nh3+ 35. Kf1 Qd1+ 36. Kg2 Nxf2 37. Qh4 Bxg3 0-1

