[Event "Eur.Mansch.vorrunde DDR  corr"]
[Site "DDR corr"]
[Date "1984.??.??"]
[Round "?"]
[White "Nitter, Claus"]
[Black "Graefe, Erhard"]
[Result "1-0"]
[ECO "C00"]
[PlyCount "43"]
[EventDate "1984.??.??"]
[EventType "tourn (corr)"]
[EventCountry "DDR"]
[SourceTitle "Corr 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.24"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.24"]
[SourceQuality "1"]

1. e4 e6 2. c4 d5 3. cxd5 exd5 4. exd5 Nf6 5. Bc4 Nbd7 6. Qb3 Qe7+ 7. Ne2 Nb6 8. Nbc3 Nxc4 9. Qxc4 Qc5 10. d3 b6 11. Be3 Qxc4 12. dxc4 Be7 13. 0-0-0 0-0 14. Nb5 Ba6 15. Nxc7 Bxc4 16. Nc3 Rac8 17. Bf4 Bd8 18. d6 Bxc7 19. dxc7 Rfe8 20. Rd4 Be6 21. Rhd1 h6 22. h3 1-0

[Event "EU-ch M corr"]
[Site "ICCF corr"]
[Date "1982.??.??"]
[Round "?"]
[White "Muenster"]
[Black "Nitter, Claus"]
[Result "1-0"]
[ECO "A29"]
[PlyCount "69"]
[EventDate "1982.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[SourceTitle "Corr 2000"]
[Source "ChessBase"]
[SourceDate "2000.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 d5 5. cxd5 Nxd5 6. Bg2 Nb6 7. 0-0 Be7 8. d3 0-0 9. a3 Be6 10. b4 f6 11. Ne4 Nd7 12. Bb2 f5 13. Ned2 Bf6 14. Rc1 a6 15. Ne1 Ndb8 16. Qc2 Rf7 17. Nc4 Bd5 18. e4 Be6 19. Nf3 fxe4 20. dxe4 Bxc4 21. Qxc4 Kf8 22. Rfd1 Qe8 23. a4 Qe7 24. b5 Nb4 25. Bxe5 axb5 26. axb5 Bxe5 27. Nxe5 Qxe5 28. Qxb4+ Ke8 29. f4 Qe6 30. e5 Qc8 31. Qe4 g5 32. e6 Re7 33. Qe5 Qxe6 34. Qh8+ Kf7 35. Bd5 1-0

[Event "W-Cup3 sf05 corr"]
[Site "ICCF corr"]
[Date "1980.??.??"]
[Round "?"]
[White "Nitter, Claus"]
[Black "Lorincz, Z."]
[Result "0-1"]
[ECO "C74"]
[PlyCount "90"]
[EventDate "1977.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. c3 f5 6. exf5 Bxf5 7. d4 e4 8. Ng5 d5 9. f3 h6 10. fxe4 hxg5 11. exf5 Bd6 12. Nd2 Qf6 13. Bc2 0-0-0 14. Nf3 Re8+ 15. Kf2 g4 16. Bg5 Qf7 17. Nh4 Qh5 18. Qd2 Be7 19. Bxe7 Ncxe7 20. g3 Nh6 21. Rae1 Nhxf5 22. Re5 Ref8 23. Ke2 Rf6 24. Rf1 Rhf8 25. Rf4 Kb8 26. Nxf5 Nxf5 27. Kd1 g6 28. Kc1 c6 29. Bd1 Qh8 30. Bxg4 Nd6 31. Rxf6 Rxf6 32. Re2 Ne4 33. Qe3 Qf8 34. Kc2 Ka7 35. Bh3 Rf3 36. Qg1 g5 37. Qg2 Nf2 38. Be6 Qf6 39. a3 a5 40. h4 Nd3 41. Qh2 Qg6 42. g4 Nb4+ 43. Kb3 Qb1 44. Bf5 Qa2+ 45. Ka4 Qc4 0-1

[Event "W-ch4 sf corr"]
[Site "ICCF corr"]
[Date "1960.??.??"]
[Round "?"]
[White "Ahmad, Iqbal"]
[Black "Nitter, Claus"]
[Result "1-0"]
[ECO "E49"]
[PlyCount "79"]
[EventDate "1957.??.??"]
[EventType "tourn (corr)"]
[EventRounds "9"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 0-0 6. Nge2 d5 7. a3 Bxc3+ 8. bxc3 Nc6 9. 0-0 dxc4 10. Bxc4 e5 11. Bb2 Qc7 12. Ba2 Bf5 13. Ng3 Bg6 14. d5 Rad8 15. c4 h5 16. Bb1 Bxb1 17. Qxb1 Na5 18. Qc2 b5 19. cxb5 Rxd5 20. f4 Ng4 21. Qe2 exf4 22. Rxf4 Qe7 23. e4 Rg5 24. Raf1 c4 25. Nf5 Qc5+ 26. Bd4 Qc7 27. Qb2 Nb3 28. Bxg7 Rd8 29. Bc3 Rxf5 30. exf5 Rd3 31. h3 Qb6+ 32. Kh1 Ne3 33. Re4 Qxb5 34. Qe2 Rxc3 35. Rxe3 Rxe3 36. Qxe3 Kf8 37. f6 Nc5 38. Qe7+ Kg8 39. Qd8+ Kh7 40. Qf8 1-0

[Event "W-ch4 sf corr"]
[Site "ICCF corr"]
[Date "1960.??.??"]
[Round "?"]
[White "Nitter, Claus"]
[Black "Husak, Karel"]
[Result "1/2-1/2"]
[ECO "A34"]
[PlyCount "122"]
[EventDate "1957.??.??"]
[EventType "tourn (corr)"]
[EventRounds "9"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 c5 3. g3 g6 4. Bg2 Bg7 5. 0-0 0-0 6. Nc3 d5 7. cxd5 Nxd5 8. Qb3 e6 9. Ne1 Nc6 10. Qc4 Bd4 11. Nxd5 exd5 12. Qxd5 Qe7 13. Qe4 Be6 14. Nf3 f5 15. Qb1 Bf6 16. d3 g5 17. Be3 f4 18. Bd2 g4 19. Ne1 Qg7 20. Bxf4 Bxb2 21. Bh6 Qe5 22. Bxf8 Rxf8 23. Bxc6 bxc6 24. Ng2 a5 25. a4 Rb8 26. Nf4 Bf7 27. e3 Bxa1 28. Qxa1 Qxa1 29. Rxa1 c4 30. e4 Rb4 31. h3 gxh3 32. f3 Rb2 33. dxc4 h2+ 34. Kh1 Bxc4 35. Rc1 Rb4 36. e5 Rxa4 37. e6 Kf8 38. Rd1 Ke8 39. Rd6 Ra2 40. Rxc6 Bb3 41. Rc8+ Ke7 42. Rc7+ Kf6 43. e7 Bf7 44. Ng2 a4 45. Ra7 Be8 46. Ne3 Ke6 47. g4 h5 48. g5 Re2 49. Ng2 Re5 50. f4 Re2 51. Kxh2 Bc6 52. e8Q+ Bxe8 53. Kg3 Bc6 54. Nh4 Re3+ 55. Kf2 Rh3 56. Ng6 Kf5 57. Ne7+ Kxf4 58. g6 Rh2+ 59. Ke1 Ke3 60. Nf5+ Kd3 61. g7 Rg2 1/2-1/2

[Event "W-ch4 sf07 corr"]
[Site "ICCF corr"]
[Date "1957.??.??"]
[Round "?"]
[White "Heemsoth, Hermann"]
[Black "Nitter, Claus"]
[Result "0-1"]
[ECO "B67"]
[PlyCount "148"]
[EventDate "1957.??.??"]
[EventType "tourn (corr)"]
[EventRounds "12"]
[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 Nf6 5. Nc3 d6 6. Bg5 e6 7. Qd2 a6 8. 0-0-0 Bd7 9. f4 h6 10. Bh4 Nxe4 11. Qe1 Nf6 12. Nf5 Qa5 13. Nxd6+ Bxd6 14. Rxd6 0-0-0 15. Rd1 e5 16. fxe5 Rhe8 17. Bg3 Nxe5 18. Nb5 Bg4 19. Nd6+ Rxd6 20. Rxd6 Nd3+ 21. Bxd3 Rxe1+ 22. Rxe1 Qxa2 23. Re5 Qa1+ 24. Kd2 Qg1 25. Rf5 h5 26. Kc3 Nd7 27. Rf4 Be6 28. Rfd4 g5 29. Bc4 h4 30. Bxe6 fxe6 31. Bxh4 Qe3+ 32. Kb4 Nf6 33. Rc4+ Kb8 34. Bg3 Ka7 35. c3 Qe2 36. Kb3 Ne4 37. Rxe4 Qxe4 38. Bf2+ b6 39. Rxb6 Qxg2 40. Be3 Qd5+ 41. Kc2 Ka8 42. Rxa6+ Kb7 43. Rb6+ Kc7 44. Rb4 Qf3 45. Kd2 e5 46. Kd3 Kd7 47. Rb6 g4 48. Rh6 Qd5+ 49. Kc2 e4 50. Bd4 Qf5 51. Rf6 Qh7 52. Kd2 Qxh2+ 53. Ke3 Qh1 54. Kf4 Qf3+ 55. Ke5 Qd3 56. Rf4 e3 57. Rxg4 Qd2 58. Ke4 e2 59. Bf2 e1Q+ 60. Bxe1 Qxe1+ 61. Kf3 Qd1+ 62. Kg3 Qd6+ 63. Rf4 Qb8 64. b4 Qe5 65. c4 Qc3+ 66. Kg4 Qxb4 67. Kf5 Qc5+ 68. Kg4 Ke6 69. Re4+ Kf6 70. Rf4+ Kg6 71. Kf3 Qe5 72. Re4 Qc3+ 73. Kf4 Kf6 74. Kg4 Qd2 0-1

[Event "olm2 qual GP1 B3 corr"]
[Site "ICCF corr"]
[Date "1948.??.??"]
[Round "?"]
[White "Dall, A."]
[Black "Nitter, Claus"]
[Result "1/2-1/2"]
[ECO "B74"]
[PlyCount "73"]
[EventDate "1948.??.??"]
[EventType "team (corr)"]
[EventRounds "7"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 g6 7. Be3 Bg7 8. 0-0 0-0 9. Nb3 Be6 10. f4 Qc8 11. h3 Rd8 12. Bf3 a5 13. Nd5 Nd7 14. c3 a4 15. Nd4 Bxd5 16. exd5 Nxd4 17. Bxd4 Qc4 18. Bxg7 Kxg7 19. Qd2 Nf6 20. Rfe1 Rd7 21. a3 Ra5 22. Rad1 Rb5 23. g3 Qa2 24. Re2 Rc7 25. Qc2 Rcc5 26. Rdd2 Nxd5 27. Qxa4 Nb6 28. Qd4+ e5 29. fxe5 dxe5 30. Qf2 Qe6 31. Bxb7 Qxh3 32. Ba6 Ra5 33. Rd6 Nd7 34. Red2 Rc7 35. Bf1 Qg4 36. Be2 Qh3 37. Bf1 1/2-1/2

[Event "olm2 qual GP1 B3 corr"]
[Site "ICCF corr"]
[Date "1948.??.??"]
[Round "?"]
[White "Israel, Hal"]
[Black "Nitter, Claus"]
[Result "0-1"]
[ECO "B20"]
[PlyCount "72"]
[EventDate "1948.??.??"]
[EventType "team (corr)"]
[EventRounds "7"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 c5 2. b4 cxb4 3. Bb2 d5 4. exd5 Qxd5 5. Nf3 Nc6 6. c4 Qe4+ 7. Be2 e5 8. 0-0 Qf4 9. g3 Qf5 10. Re1 Be6 11. Nh4 Qf6 12. Bf3 Nge7 13. a3 g5 14. Ng2 bxa3 15. Rxa3 Bg7 16. Bxc6+ Nxc6 17. f4 gxf4 18. gxf4 Qd8 19. Kh1 Qd7 20. Rg3 Rg8 21. d4 Bxc4 22. Qc2 Bd5 23. Qxh7 0-0-0 24. Rxg7 Rh8 25. Qd3 Rdg8 26. Rxg8+ Rxg8 27. Re2 exf4 28. Rf2 Ne5 29. Qc2+ Nc4 30. Nd2 Qc6 31. Nf3 Kb8 32. Qc1 Qh6 33. Qxf4+ Qxf4 34. Nxf4 Bxf3+ 35. Rxf3 Nxb2 36. h4 a5 0-1

