[Event "CIF email"]
[Site "CServe email"]
[Date "1993.??.??"]
[Round "?"]
[White "Carlsson, David E"]
[Black "Koester, Diedrich"]
[Result "0-1"]
[ECO "C44"]
[PlyCount "44"]
[EventDate "1993.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[SourceTitle "E-Mail 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. c3 dxc3 5. Nxc3 Bb4 6. Bc4 d6 7. 0-0 Bxc3 8. bxc3 Nf6 9. e5 Nxe5 10. Nxe5 dxe5 11. Qb3 Qe7 12. Ba3 c5 13. Bb5+ Bd7 14. Bxd7+ Qxd7 15. Bxc5 Ne4 16. Ba3 Nd2 17. Qb4 a5 18. Qc5 Nxf1 19. Rd1 Nd2 20. Rxd2 Rc8 21. Qxe5+ Qe6 22. Qc5 Qe1# 0-1

[Event "CIF email"]
[Site "CServe email"]
[Date "1993.??.??"]
[Round "?"]
[White "Woschkat, Karl Heinz"]
[Black "Koester, Diedrich"]
[Result "0-1"]
[ECO "A00"]
[PlyCount "38"]
[EventDate "1993.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[SourceTitle "E-Mail 2000"]
[Source "ChessBase"]
[SourceDate "2000.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. b4 e5 2. Bb2 Bxb4 3. Bxe5 Nf6 4. Nc3 Nc6 5. Bxf6 Qxf6 6. Nd5 Qd6 7. e4 0-0 8. c3 Ba5 9. Qc2 Re8 10. 0-0-0 b5 11. Re1 Rb8 12. Ne3 Qa3+ 13. Kd1 d6 14. Nf3 Be6 15. Nd5 b4 16. Re2 bxc3 17. dxc3 Ne5 18. Nxe5 dxe5 19. Rd2 c6 0-1

[Event "CIF email"]
[Site "CServe email"]
[Date "1992.??.??"]
[Round "?"]
[White "Koester, Diedrich"]
[Black "Montecatine Rios, Ricardo"]
[Result "1/2-1/2"]
[ECO "C91"]
[PlyCount "101"]
[EventDate "1992.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[SourceTitle "E-Mail 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 Nf6 5. 0-0 Be7 6. Re1 b5 7. Bb3 d6 8. c3 0-0 9. d4 Bg4 10. Bd5 Nxd5 11. exd5 Na5 12. dxe5 dxe5 13. Rxe5 Nc4 14. Re4 f5 15. Re1 Nb6 16. Qb3 Bf6 17. d6+ Kh8 18. dxc7 Qxc7 19. Nbd2 Rfe8 20. h3 Bh5 21. Qa3 Na4 22. Rxe8+ Rxe8 23. Nd4 Re1+ 24. Nf1 Be7 25. Qb3 Bd6 26. Nf3 Bxf3 27. gxf3 f4 28. Qd5 Nb6 29. Qd3 Qe7 30. h4 Re6 31. h5 Nc4 32. Qd5 Qe8 33. b3 Re5 34. Qb7 Rg5+ 35. Ng3 Ne3 36. Bd2 fxg3 37. Bxe3 Rxh5 38. Rd1 gxf2+ 39. Bxf2 Qg6+ 40. Kf1 Rh1+ 41. Ke2 Qe6+ 42. Qe4 Qxe4+ 43. fxe4 Rxd1 44. Kxd1 h5 45. c4 bxc4 46. bxc4 g5 47. Ke2 Kg7 48. c5 Bc7 49. Kf3 Kf6 50. Bg3 Bxg3 51. Kxg3 1/2-1/2

[Event "CIF email"]
[Site "CServe email"]
[Date "1992.??.??"]
[Round "?"]
[White "Koester, Diedrich"]
[Black "Mrkvicka, Josef"]
[Result "1-0"]
[ECO "E99"]
[PlyCount "55"]
[EventDate "1992.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[SourceTitle "E-Mail 2000"]
[Source "ChessBase"]
[SourceDate "2000.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. c4 Nf6 5. Nc3 0-0 6. Be2 e5 7. 0-0 Nc6 8. d5 Ne7 9. Ne1 Nd7 10. Nd3 f5 11. Bd2 Nf6 12. f3 f4 13. b4 g5 14. c5 Kh8 15. Rc1 h5 16. Nb2 Neg8 17. cxd6 cxd6 18. Nb5 Ne8 19. Na3 Bd7 20. Qb3 a6 21. b5 Qb6+ 22. Kh1 Rf6 23. Nbc4 Qa7 24. b6 Qb8 25. Rc3 Ne7 26. Rfc1 Qd8 27. Na5 Qb8 28. Nxb7 1-0

[Event "CIF email"]
[Site "CServe email"]
[Date "1992.??.??"]
[Round "?"]
[White "Montecatine Rios, Ricardo"]
[Black "Koester, Diedrich"]
[Result "1/2-1/2"]
[ECO "E70"]
[PlyCount "87"]
[EventDate "1992.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[SourceTitle "E-Mail 2000"]
[Source "ChessBase"]
[SourceDate "2000.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nge2 0-0 6. Ng3 c5 7. d5 Bg4 8. f3 Bd7 9. Be3 Na6 10. Qd2 Qa5 11. Bd3 Nb4 12. Be2 e6 13. 0-0 exd5 14. cxd5 Rac8 15. a3 Na6 16. Bc4 Nc7 17. a4 Qb4 18. Qd3 Na8 19. Bd2 Nb6 20. b3 Nxc4 21. bxc4 Qb6 22. Bf4 Qa6 23. Rfe1 h5 24. e5 dxe5 25. Bxe5 Rfe8 26. h4 Rxe5 27. Rxe5 Ng4 28. Re4 Bd4+ 29. Rxd4 cxd4 30. Nd1 Nf6 31. Nb2 Qb6 32. Rb1 Re8 33. Ne4 Nxe4 34. fxe4 f5 35. a5 Qf6 36. Rf1 b6 37. exf5 Bxf5 38. Qf3 Qxh4 39. axb6 axb6 40. d6 Re4 41. Na4 Qd8 42. c5 bxc5 43. Nxc5 Re5 44. Qg3 1/2-1/2

[Event "CIF email"]
[Site "CServe email"]
[Date "1992.??.??"]
[Round "?"]
[White "Mrkvicka, Josef"]
[Black "Koester, Diedrich"]
[Result "1-0"]
[ECO "B22"]
[PlyCount "79"]
[EventDate "1992.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[SourceTitle "E-Mail 2000"]
[Source "ChessBase"]
[SourceDate "2000.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 c5 2. c3 d5 3. exd5 Qxd5 4. d4 Nc6 5. Nf3 Bg4 6. Be2 e6 7. h3 Bh5 8. c4 Qd7 9. g4 Bg6 10. d5 exd5 11. cxd5 Nb4 12. Nc3 0-0-0 13. Ne5 Qe7 14. Nxg6 hxg6 15. Be3 Nf6 16. Bf3 Qe5 17. Qd2 c4 18. 0-0-0 Nd3+ 19. Kb1 Bb4 20. Bxa7 Nxd5 21. Bxd5 Rxd5 22. Rhe1 Qd6 23. Re4 b5 24. Qe2 Nf4 25. Rxc4+ Kb7 26. Qf3 Rxh3 27. Rxd5 Rxf3 28. Rxd6 bxc4 29. Rd7+ Ka6 30. Rxf7 Bxc3 31. bxc3 Rxc3 32. Bd4 Rf3 33. g5 c3 34. Be3 c2+ 35. Kxc2 Ng2 36. Rxf3 Ne1+ 37. Kc3 Nxf3 38. Kc4 Nh4 39. Kd5 Kb5 40. Ke6 1-0

[Event "CIF email"]
[Site "CServe email"]
[Date "1992.??.??"]
[Round "?"]
[White "Zimmermann, Hans Dieter"]
[Black "Koester, Diedrich"]
[Result "0-1"]
[ECO "C82"]
[PlyCount "54"]
[EventDate "1992.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[SourceTitle "E-Mail 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 Nf6 5. 0-0 Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. c3 Bc5 10. Nbd2 0-0 11. Bc2 Bf5 12. Nb3 Bg6 13. Bxe4 dxe4 14. Nfd4 Bxd4 15. cxd4 f6 16. exf6 Qxf6 17. Be3 Rad8 18. Qd2 Rd5 19. Rad1 Bh5 20. Rc1 Qg6 21. Bf4 Nxd4 22. Nxd4 c5 23. Qe3 cxd4 24. Qg3 Rdf5 25. Qxg6 Bxg6 26. g3 Bh5 27. Bd2 Be2 0-1

[Event "CIF email"]
[Site "CServe email"]
[Date "1991.??.??"]
[Round "?"]
[White "Woelfelschneider, Peter"]
[Black "Koester, Diedrich"]
[Result "1-0"]
[ECO "A00"]
[PlyCount "91"]
[EventDate "1991.??.??"]
[EventType "swiss (corr)"]
[EventRounds "10"]
[SourceTitle "E-Mail 2000"]
[Source "ChessBase"]
[SourceDate "2000.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. b4 e5 2. Bb2 f6 3. e4 d5 4. f4 exf4 5. Qh5+ g6 6. Qxd5 Qxd5 7. exd5 Bxb4 8. Bc4 Bf5 9. Ne2 f3 10. gxf3 Bxc2 11. Nd4 Bxb1 12. Rxb1 Bd6 13. Bc3 b6 14. Nb5 Kd7 15. Nxd6 Kxd6 16. 0-0 Nd7 17. Bb4+ Ke5 18. Rfe1+ Kf4 19. d4 Kg5 20. Bd2+ Kh5 21. Bf4 f5 22. Bxc7 Ngf6 23. Re7 Rhe8 24. Rf7 Rf8 25. d6 Rxf7 26. Bxf7 Rf8 27. Bb3 Re8 28. Kf2 Kh4 29. Bf7 Ra8 30. Re1 b5 31. Re7 Nb6 32. Be6 Nfd5 33. Bxb6 Nxb6 34. d7 Rd8 35. Re8 Rxd7 36. Bxd7 Nxd7 37. Re7 Nf6 38. Rf7 Nd5 39. Rxh7+ Kg5 40. h4+ Kf4 41. Rxa7 Nc3 42. Rb7 Nxa2 43. Rxb5 Nc3 44. Rc5 Nd1+ 45. Ke2 Nb2 46. Kd2 1-0

[Event "CIF email"]
[Site "CServe email"]
[Date "1990.??.??"]
[Round "?"]
[White "Koester, Diedrich"]
[Black "Fraser, Fred JL"]
[Result "1-0"]
[ECO "E11"]
[PlyCount "91"]
[EventDate "1990.??.??"]
[EventType "swiss (corr)"]
[EventRounds "10"]
[SourceTitle "Corr 2002"]
[Source "ChessBase"]
[SourceDate "2002.05.23"]
[SourceVersion "1"]
[SourceVersionDate "2002.05.23"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Nbd2 d5 5. a3 Be7 6. e3 0-0 7. Bd3 Nbd7 8. 0-0 c5 9. b3 cxd4 10. exd4 b6 11. Bb2 Bb7 12. Qe2 Re8 13. Rfd1 Rc8 14. Rdc1 Bd6 15. Ne5 Bb8 16. f4 Qe7 17. Ndf3 dxc4 18. bxc4 Nf8 19. Ng5 Ng6 20. Rf1 Nh8 21. Qc2 g6 22. Rae1 Nh5 23. Nh3 Red8 24. Rc1 f6 25. Ng4 Bd6 26. f5 exf5 27. Rce1 Qc7 28. Bxf5 gxf5 29. Qxf5 Bxh2+ 30. Nxh2 Ng3 31. Qg4+ Qg7 32. Re7 Qxg4 33. Nxg4 Nxf1 34. Rxb7 Nf7 35. Nxf6+ Kg7 36. d5 Kg6 37. Nf4+ Kf5 38. Rxf7 Kxf4 39. Nxh7+ Ke3 40. Kxf1 Rxc4 41. Rf3+ Kd2 42. Nf6 a6 43. g4 Kc2 44. Be5 Kd1 45. g5 Rh8 46. g6 1-0

[Event "CIF LM email"]
[Site "CServe email"]
[Date "1989.??.??"]
[Round "?"]
[White "Woelfelschneider, Peter"]
[Black "Koester, Diedrich"]
[Result "1-0"]
[ECO "A00"]
[PlyCount "117"]
[EventDate "1989.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[SourceTitle "E-Mail 2000"]
[Source "ChessBase"]
[SourceDate "2000.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. b4 e5 2. Bb2 f6 3. e4 d5 4. f4 exf4 5. Qh5+ g6 6. Qxd5 Qxd5 7. exd5 Bxb4 8. Bc4 Bf5 9. Ne2 f3 10. gxf3 Bxc2 11. Nd4 Ba4 12. Nc3 Bd7 13. 0-0-0 Kd8 14. Rde1 Kc8 15. Ne6 Be7 16. Ne4 b5 17. Bf1 h5 18. N4c5 Bd6 19. Nxd7 Nxd7 20. Bxb5 Ne7 21. Re2 a6 22. Bxd7+ Kxd7 23. Bxf6 Rhe8 24. Bxe7 Rxe7 25. Rg1 Rg8 26. f4 Rf7 27. Kc2 Rf6 28. Re4 Rf5 29. Rd4 a5 30. Kd3 Kc8 31. Rb1 Rh8 32. Rb5 Bb4 33. a3 Bd6 34. Rxa5 Kd7 35. h3 Rb8 36. Kc2 Kc8 37. d3 Rb6 38. Ra8+ Rb8 39. Rxb8+ Kxb8 40. a4 Kb7 41. Kc3 Kb6 42. Kd2 Rf7 43. Ke2 c5 44. dxc6 Bc7 45. Rd7 Rf6 46. a5+ Kxa5 47. Nxc7 Rxc6 48. d4 Rc3 49. d5 Rxh3 50. d6 Kb6 51. Rg7 Kc6 52. Ne8 Rh2+ 53. Kf3 Rd2 54. Rxg6 Rd3+ 55. Ke4 Rd2 56. Kf5 h4 57. Rh6 h3 58. Rxh3 Re2 59. Rd3 1-0

[Event "CIF email"]
[Site "CServe email"]
[Date "1984.??.??"]
[Round "?"]
[White "Freimann, Peter"]
[Black "Koester, Diedrich"]
[Result "1-0"]
[ECO "B85"]
[PlyCount "53"]
[EventDate "1984.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[SourceTitle "E-Mail 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 e6 6. Be2 a6 7. 0-0 Qc7 8. f4 Nc6 9. Be3 Be7 10. Qe1 0-0 11. Qg3 Bd7 12. Rae1 d5 13. e5 Nxd4 14. Bxd4 Ne4 15. Nxe4 dxe4 16. Qe3 Qxc2 17. Rc1 Qa4 18. Rc4 Qa5 19. Bb6 Qxa2 20. Rc7 Bc6 21. Rxe7 Qxb2 22. Bd4 Qb4 23. Bc5 Qa5 24. Bc4 Rae8 25. f5 Rxe7 26. f6 Rd7 27. Qg5 1-0

