[Event "EU-ch M corr"]
[Site "ICCF corr"]
[Date "1996.??.??"]
[Round "?"]
[White "Koch, Berthold"]
[Black "Gilbert"]
[Result "1-0"]
[ECO "B33"]
[PlyCount "69"]
[EventDate "1996.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[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 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 b5 9. Nd5 Be7 10. Bxf6 Bxf6 11. c3 0-0 12. Nc2 Bg5 13. a4 bxa4 14. Rxa4 Nb8 15. h4 Bh6 16. Nce3 Bxe3 17. Nxe3 Bb7 18. Nf5 Qd7 19. Nxd6 Rd8 20. Rh3 Bc6 21. Ra1 Qe7 22. Rd3 Qxh4 23. Qb3 Ra7 24. Rad1 Rf8 25. Rh3 Qg4 26. Rg3 Qh5 27. Rf3 Bb5 28. Rh3 Qg5 29. Rg3 Qf4 30. Bxb5 axb5 31. Kf1 Rd7 32. Qxb5 Rfd8 33. Kg1 Qf6 34. Rf3 g6 35. Rd5 1-0

[Event "EU-ch M corr"]
[Site "ICCF corr"]
[Date "1996.??.??"]
[Round "?"]
[White "Koch, Berthold"]
[Black "Teichmeister, Sven"]
[Result "0-1"]
[ECO "B97"]
[PlyCount "60"]
[EventDate "1996.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[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 Qb6 8. Nb3 Nbd7 9. Qf3 Be7 10. Bd3 Qc7 11. 0-0-0 b5 12. Bxf6 Nxf6 13. g4 b4 14. Ne2 Bb7 15. g5 Nd7 16. Rhe1 a5 17. Kb1 0-0 18. Qe3 a4 19. Nbd4 Nc5 20. Ng3 Nxd3 21. cxd3 Rfc8 22. Rc1 Qa5 23. h4 d5 24. h5 dxe4 25. g6 Rxc1+ 26. Rxc1 a3 27. b3 Qb6 28. Ndf5 Qxe3 29. Nxe3 fxg6 30. hxg6 exd3 0-1

[Event "EU-ch M corr"]
[Site "ICCF corr"]
[Date "1996.??.??"]
[Round "?"]
[White "Schwieger, V."]
[Black "Koch, Berthold"]
[Result "0-1"]
[ECO "B19"]
[PlyCount "74"]
[EventDate "1996.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[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 Bf5 5. Ng3 Bg6 6. h4 h6 7. Nf3 Nd7 8. h5 Bh7 9. Bd3 Bxd3 10. Qxd3 Qc7 11. Bd2 Ngf6 12. Qe2 e6 13. Ne5 Bd6 14. Nxd7 Qxd7 15. 0-0-0 Bxg3 16. fxg3 Qd5 17. Kb1 0-0 18. Rh4 a5 19. Rf1 Ne8 20. c4 Qd7 21. Rg4 Kh8 22. Bc3 b5 23. b3 a4 24. Bb4 Rg8 25. cxb5 axb3 26. axb3 Nf6 27. Rgf4 Rgb8 28. Bc5 Rxb5 29. b4 Qd5 30. Qc2 Rbb8 31. R1f3 Ra6 32. Qb3 Qxh5 33. Rh4 Qg6+ 34. Kb2 Nd5 35. Rh1 Qe4 36. Qd3 Qxd3 37. Rxd3 Nxb4 0-1

[Event "corr"]
[Site "corr"]
[Date "1992.??.??"]
[Round "?"]
[White "Koch, Berthold"]
[Black "Warzecha, Helmut"]
[Result "0-1"]
[ECO "A02"]
[PlyCount "40"]
[EventDate "1992.??.??"]
[EventType "tourn (corr)"]
[EventRounds "12"]
[SourceTitle "Corr 2000"]
[Source "ChessBase"]
[SourceDate "2000.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. f4 e5 2. fxe5 d6 3. exd6 Bxd6 4. Nf3 g5 5. g3 g4 6. Nh4 Ne7 7. d4 Ng6 8. Nxg6 hxg6 9. Qd3 Nc6 10. c3 Bf5 11. e4 Qe7 12. Bg2 0-0-0 13. 0-0 Ne5 14. Qc2 Rxh2 15. Kxh2 Nf3+ 16. Rxf3 gxf3 17. Bxf3 Qh4+ 18. Kg1 Qxg3+ 19. Qg2 Qe1+ 20. Qf1 Bh2+ 0-1

[Event "corr"]
[Site "corr"]
[Date "1989.??.??"]
[Round "?"]
[White "Adamski, Jan"]
[Black "Koch, Berthold"]
[Result "1-0"]
[ECO "A00"]
[PlyCount "35"]
[EventDate "1989.??.??"]
[EventType "tourn (corr)"]
[EventRounds "9"]
[SourceTitle "Corr 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 Bd6 10. Nbc3 Ne7 11. Nb5 Bxc2 12. Bxf6 Rf8 13. Nxd6+ cxd6 14. Bxe7 Kxe7 15. 0-0 g5 16. Rae1 Kd8 17. Nd4 Bf5 18. Ne6+ 1-0

[Event "ARG-ch corr"]
[Site "Argentina"]
[Date "1989.??.??"]
[Round "?"]
[White "Ballester"]
[Black "Koch, Berthold"]
[Result "0-1"]
[ECO "E06"]
[PlyCount "68"]
[EventDate "1989.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "ARG"]
[SourceTitle "Corr 2000"]
[Source "ChessBase"]
[SourceDate "2000.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Be7 5. Nf3 0-0 6. 0-0 c6 7. b3 b6 8. Bb2 Ba6 9. Nbd2 Nbd7 10. Rc1 Rc8 11. Re1 c5 12. e3 cxd4 13. Nxd4 Nc5 14. Qc2 e5 15. Nf5 e4 16. Nxe7+ Qxe7 17. Ba3 Qd7 18. Red1 Rfd8 19. Bxc5 Rxc5 20. Nxe4 Nxe4 21. Bxe4 dxe4 22. Rxd7 Rxd7 23. Qxe4 Rc8 24. Qg4 Rcd8 25. Kf1 Bc8 26. Qf4 Rd2 27. Qc7 Bh3+ 28. Ke1 Bg4 29. f3 Bxf3 30. Qxa7 h5 31. Qc7 Bg4 32. c5 Re2+ 33. Kf1 Rdd2 34. Qxb6 Bh3+ 0-1

[Event "corr"]
[Site "corr"]
[Date "1989.??.??"]
[Round "?"]
[White "Koch, Berthold"]
[Black "Gatto, Claudio"]
[Result "1/2-1/2"]
[ECO "B74"]
[PlyCount "40"]
[EventDate "1989.??.??"]
[EventType "tourn (corr)"]
[EventRounds "9"]
[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. Be2 0-0 8. 0-0 Nc6 9. Nb3 Be6 10. f4 Qc8 11. Kh1 Bg4 12. Bg1 Rb8 13. Nd5 Bxe2 14. Qxe2 Qe6 15. Nxf6+ Bxf6 16. c3 Bg7 17. Nd4 Nxd4 18. Bxd4 Bxd4 19. cxd4 Rfc8 20. d5 Qd7 1/2-1/2

[Event "corr"]
[Site "corr"]
[Date "1988.??.??"]
[Round "?"]
[White "Koch, Berthold"]
[Black "Eichhorn, Ernst"]
[Result "1/2-1/2"]
[ECO "A00"]
[PlyCount "55"]
[EventDate "1988.03.06"]
[EventType "match (corr)"]
[EventRounds "10"]
[SourceTitle "Corr 2000"]
[Source "ChessBase"]
[SourceDate "2000.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. b4 e5 2. Bb2 d6 3. e4 Nf6 4. d4 exd4 5. Qxd4 Nc6 6. Bb5 Bd7 7. Bxc6 Bxc6 8. Nc3 a6 9. Nf3 Be7 10. e5 dxe5 11. Qxe5 Qd6 12. Qxd6 Bxd6 13. a3 Bxf3 14. gxf3 Be5 15. 0-0-0 0-0 16. Na4 Bxb2+ 17. Nxb2 b5 18. Rd3 a5 19. Re1 axb4 20. axb4 Ra1+ 21. Kd2 Rxe1 22. Kxe1 Re8+ 23. Kf1 g5 24. Rc3 Nd5 25. Rc5 Re5 26. Nd3 Rf5 27. Kg2 Nf4+ 28. Nxf4 1/2-1/2

[Event "SUI-ch corr"]
[Site "Switzerland"]
[Date "1988.??.??"]
[Round "?"]
[White "Koch, Berthold"]
[Black "Kambor, Joachim"]
[Result "0-1"]
[ECO "A87"]
[PlyCount "80"]
[EventDate "1988.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "SUI"]
[SourceTitle "Corr 2000"]
[Source "ChessBase"]
[SourceDate "2000.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. c4 f5 2. Nf3 Nf6 3. g3 g6 4. Bg2 Bg7 5. 0-0 0-0 6. d4 d6 7. Nc3 Qe8 8. Nd5 Na6 9. Nxf6+ Rxf6 10. d5 c6 11. Bg5 Rf8 12. Qd2 Nc5 13. Bf4 Ne4 14. Qc2 Bd7 15. dxc6 bxc6 16. Rad1 Rb8 17. Bc1 Qf7 18. Nd2 Nxd2 19. Rxd2 Rb4 20. b3 a5 21. Ba3 Rbb8 22. e4 f4 23. Bb2 Bxb2 24. Qxb2 f3 25. Bh1 g5 26. e5 d5 27. cxd5 cxd5 28. Qc3 Ra8 29. Rd4 Ra6 30. h4 Rg6 31. Qxa5 gxh4 32. Rxh4 Bg4 33. Rd1 e6 34. Rd4 h5 35. Qc3 Qf5 36. Rd1 Rg7 37. a4 Qe4 38. Re1 Rc7 39. Bxf3 Rxc3 40. Bxe4 dxe4 0-1

[Event "FRG-ch M corr"]
[Site "GER corr"]
[Date "1987.??.??"]
[Round "?"]
[White "Wellenr"]
[Black "Koch, Berthold"]
[Result "1-0"]
[ECO "E08"]
[PlyCount "41"]
[EventDate "1987.??.??"]
[EventType "tourn (corr)"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "Corr 2000"]
[Source "ChessBase"]
[SourceDate "2000.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Be7 5. Nf3 0-0 6. 0-0 Nbd7 7. Qc2 c6 8. b3 b6 9. Rd1 Ne4 10. a4 Ba6 11. Nc3 f5 12. Ne5 Rc8 13. Bb2 Nxe5 14. dxe5 Bc5 15. Nxe4 fxe4 16. Bxe4 Bxf2+ 17. Kg2 h6 18. Bf3 Bc5 19. a5 Qe7 20. axb6 axb6 21. Rxa6 1-0

[Event "corr"]
[Site "corr"]
[Date "1986.??.??"]
[Round "?"]
[White "Baumgartner, Ulrich"]
[Black "Koch, Berthold"]
[Result "1-0"]
[ECO "D74"]
[PlyCount "93"]
[EventDate "1986.??.??"]
[EventType "team (corr)"]
[EventRounds "12"]
[SourceTitle "Corr 2000"]
[Source "ChessBase"]
[SourceDate "2000.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 d5 3. cxd5 Nxd5 4. g3 g6 5. Bg2 Nxc3 6. bxc3 Bg7 7. Rb1 Nd7 8. Nf3 0-0 9. 0-0 e5 10. d4 c6 11. e4 Qa5 12. Qc2 exd4 13. cxd4 Nb6 14. Bd2 Qh5 15. a4 Nd7 16. a5 c5 17. dxc5 Qxc5 18. Qxc5 Nxc5 19. Bb4 b6 20. Bxc5 bxc5 21. Rfc1 Ba6 22. Rxc5 Rac8 23. Rbc1 Rxc5 24. Rxc5 Rc8 25. Rxc8+ Bxc8 26. Bf1 Bb7 27. Bd3 Kf8 28. a6 Bc6 29. Nd2 Ke7 30. f4 Kd6 31. Nb3 Kc7 32. e5 Bd5 33. Nd4 Bf8 34. Nb5+ Kb6 35. Nc3 Be6 36. Kf2 h5 37. Ne4 Be7 38. Ke3 Kc6 39. h4 Bd8 40. Ng5 Bb3 41. f5 gxf5 42. Kf4 f6 43. exf6 Bxf6 44. Kxf5 Bd8 45. Nf3 Bd1 46. Nd4+ Kc5 47. Ne6+ 1-0

[Event "Latin Am corr"]
[Site "corr"]
[Date "1986.??.??"]
[Round "?"]
[White "Koch, Berthold"]
[Black "De Sousa"]
[Result "1-0"]
[ECO "D15"]
[PlyCount "23"]
[EventDate "1986.??.??"]
[EventType "tourn (corr)"]
[EventRounds "9"]
[SourceTitle "Corr 2000"]
[Source "ChessBase"]
[SourceDate "2000.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. e4 b5 6. e5 Nd5 7. Ng5 f6 8. Nge4 fxe5 9. Qh5+ g6 10. Qxe5 Nxc3 11. bxc3 Qd5 12. Nf6+ 1-0

[Event "FRG-ch M corr"]
[Site "GER corr"]
[Date "1986.??.??"]
[Round "?"]
[White "Koch, Berthold"]
[Black "Ihlenfeld, Eckart"]
[Result "0-1"]
[ECO "C19"]
[PlyCount "54"]
[EventDate "1986.??.??"]
[EventType "tourn (corr)"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "Corr 2000"]
[Source "ChessBase"]
[SourceDate "2000.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 Ne7 7. a4 Nbc6 8. Nf3 Qa5 9. Bd2 Bd7 10. Be2 f6 11. c4 Qc7 12. exf6 gxf6 13. cxd5 Nxd5 14. c3 0-0-0 15. 0-0 Rhg8 16. Re1 Nf4 17. Bxf4 Qxf4 18. dxc5 e5 19. Qc1 Qxc1 20. Raxc1 Na5 21. Rc2 Bc6 22. Nh4 Rd5 23. g3 Rxc5 24. Nf5 Kc7 25. Ne7 Rd8 26. Nxc6 Nxc6 27. Rcc1 Na5 0-1

[Event "FRG-ch AK corr"]
[Site "GER corr"]
[Date "1984.??.??"]
[Round "?"]
[White "Koch, Berthold"]
[Black "Dluhosch, Thomas"]
[Result "1/2-1/2"]
[ECO "A00"]
[PlyCount "66"]
[EventDate "1984.??.??"]
[EventType "tourn (corr)"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "Corr 2000"]
[Source "ChessBase"]
[SourceDate "2000.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. b4 c6 2. Bb2 a5 3. a3 axb4 4. axb4 Rxa1 5. Bxa1 Qb6 6. c3 d5 7. d4 Nf6 8. Nf3 Bg4 9. Nbd2 Bxf3 10. exf3 Nbd7 11. Bd3 e6 12. 0-0 Bd6 13. Qa4 0-0 14. Re1 Qc7 15. Nf1 e5 16. Ng3 exd4 17. cxd4 Nb6 18. Qb3 Ra8 19. b5 Ra3 20. Qb1 Ra4 21. bxc6 bxc6 22. Bc2 Ra8 23. Bb3 g6 24. Qc1 Bf4 25. Qc3 Ne8 26. Nf1 Nd6 27. Qd3 Nbc4 28. g3 Bh6 29. Ne3 Re8 30. f4 Re6 31. Kg2 Qe7 32. Re2 Bg7 33. Kf1 Qa7 1/2-1/2

[Event "FRG-16ch corr"]
[Site "GER corr"]
[Date "1979.??.??"]
[Round "?"]
[White "Weigel, Robert"]
[Black "Koch, Berthold"]
[Result "0-1"]
[ECO "B17"]
[PlyCount "50"]
[EventDate "1979.??.??"]
[EventType "swiss (corr)"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "Corr 2000"]
[Source "ChessBase"]
[SourceDate "2000.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Nd7 5. Bc4 Ngf6 6. Ng5 e6 7. Qe2 Nb6 8. Bd3 h6 9. N5f3 c5 10. dxc5 Nbd7 11. b4 b6 12. Nd4 Nxc5 13. Bb5+ Ncd7 14. Qf3 Nd5 15. Bc6 Bxb4+ 16. Bd2 Bxd2+ 17. Kxd2 Rb8 18. Nge2 Qg5+ 19. Ke1 0-0 20. h4 Qf6 21. Bxd5 exd5 22. Qxd5 Ne5 23. Qe4 Re8 24. Kf1 Ba6 25. Kg1 Ng6 0-1

[Event "FRG-ch16 sf corr"]
[Site "GER corr"]
[Date "1977.??.??"]
[Round "?"]
[White "Mermagen, J."]
[Black "Koch, Berthold"]
[Result "1/2-1/2"]
[ECO "E84"]
[PlyCount "83"]
[EventDate "1977.??.??"]
[EventType "tourn (corr)"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "Corr 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. f3 0-0 6. Be3 Nc6 7. Qd2 a6 8. Nge2 Rb8 9. Bh6 Bxh6 10. Qxh6 e5 11. d5 Nd4 12. 0-0-0 Nxe2+ 13. Bxe2 Bd7 14. g4 b5 15. cxb5 axb5 16. h4 b4 17. Nb1 Kh8 18. Nd2 c6 19. dxc6 Bxc6 20. Qe3 Qc7 21. Kb1 d5 22. h5 dxe4 23. Nxe4 Nd5 24. Qc1 Rfc8 25. hxg6 Nc3+ 26. Ka1 fxg6 27. Nxc3 Qe7 28. Rxh7+ Qxh7 29. Rh1 bxc3 30. Rxh7+ Kxh7 31. bxc3 Bd5 32. c4 Bf7 33. f4 exf4 34. Qxf4 Kg7 35. g5 Re8 36. Bd1 Rb4 37. Qf6+ Kg8 38. Bb3 Reb8 39. Bc2 Rxc4 40. Bb3 Rc1+ 41. Kb2 Rc7 42. Qxg6+ 1/2-1/2

[Event "FRG-ch14 prel corr"]
[Site "GER corr"]
[Date "1975.??.??"]
[Round "?"]
[White "Karcher, Andreas"]
[Black "Koch, Berthold"]
[Result "0-1"]
[ECO "E63"]
[PlyCount "58"]
[EventDate "1975.??.??"]
[EventType "game (corr)"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "Corr 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. g3 0-0 5. Bg2 d6 6. Nf3 Nc6 7. 0-0 a6 8. b3 Rb8 9. Bb2 b5 10. d5 Na5 11. cxb5 axb5 12. Nd4 Bd7 13. e3 b4 14. Nce2 e5 15. Nc2 c5 16. dxc6 Bxc6 17. Bxc6 Nxc6 18. Nc1 d5 19. a4 bxa3 20. Bxa3 Re8 21. Rb1 d4 22. exd4 exd4 23. Nd3 Ne4 24. Rb2 Nc3 25. Qf3 Ne5 26. Nxe5 Rxe5 27. Qd3 Qd5 28. Nb4 Qa8 29. Ra1 Rxb4 0-1

[Event "FRG-ch4 sf corr"]
[Site "GER corr"]
[Date "1975.??.??"]
[Round "?"]
[White "Koch, Berthold"]
[Black "Helm, Hans"]
[Result "1-0"]
[ECO "A36"]
[PlyCount "69"]
[EventDate "1975.??.??"]
[EventType "tourn (corr)"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "Corr 2000"]
[Source "ChessBase"]
[SourceDate "2000.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. c4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. e4 e5 6. Nge2 d6 7. 0-0 Nge7 8. d3 0-0 9. a3 Rb8 10. Rb1 a6 11. b4 cxb4 12. axb4 b5 13. cxb5 axb5 14. Be3 Be6 15. d4 exd4 16. Nxd4 Bc4 17. Re1 Ne5 18. Nd5 Nxd5 19. exd5 Qd7 20. Qd2 Ra8 21. Ra1 Nd3 22. Red1 Qb7 23. Ra5 Rxa5 24. bxa5 Ra8 25. Rb1 Nc5 26. Nc6 Qa6 27. Bxc5 dxc5 28. d6 Bf6 29. Qe3 Ba2 30. Rd1 Be6 31. d7 Rd8 32. Nxd8 Bxd8 33. Qxc5 Qxa5 34. Bc6 Qa4 35. Rb1 1-0

[Event "FRG-ch14 prel corr"]
[Site "GER corr"]
[Date "1975.??.??"]
[Round "?"]
[White "Leppek, Ernst"]
[Black "Koch, Berthold"]
[Result "0-1"]
[ECO "B09"]
[PlyCount "114"]
[EventDate "1975.??.??"]
[EventType "game (corr)"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "Corr 2000"]
[Source "ChessBase"]
[SourceDate "2000.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 c5 6. dxc5 Qa5 7. Bd3 Qxc5 8. Qe2 0-0 9. Be3 Qa5 10. 0-0 Bg4 11. h3 Bxf3 12. Qxf3 Nc6 13. a3 Nd7 14. b4 Qd8 15. Bd2 Rc8 16. Rab1 Nxb4 17. axb4 Bxc3 18. Be3 Nb6 19. Qe2 Qc7 20. Rb3 Bg7 21. f5 Nc4 22. Bf2 Ne5 23. c3 Nxd3 24. Qxd3 Qc4 25. Qc2 a6 26. Rd1 Rfd8 27. fxg6 hxg6 28. Qb1 d5 29. exd5 Rxd5 30. Re1 Rcd8 31. Ra3 Rd3 32. Qc2 e6 33. Re3 Rd1+ 34. Re1 R1d3 35. Re3 Rxe3 36. Bxe3 Rd3 37. Bd2 Bd4+ 38. Kh2 Qc7+ 39. Kh1 Qg3 40. cxd4 Rxa3 41. Qc1 Ra2 42. Kg1 Kg7 43. Qd1 g5 44. Qc1 f5 45. Qc5 Ra1+ 46. Bc1 Kf7 47. Qc8 Qe3+ 48. Kh2 Qxd4 49. Qc7+ Kg6 50. Qb8 Qg7 51. Bb2 Qxb2 52. Qe8+ Kh7 53. Qf7+ Qg7 54. Qh5+ Kg8 55. Qe8+ Qf8 56. Qg6+ Kh8 57. Qxe6 Rd1 0-1

[Event "FRG-ch14 corr7376"]
[Site "GER corr"]
[Date "1973.??.??"]
[Round "?"]
[White "Keller, Hanno"]
[Black "Koch, Berthold"]
[Result "1-0"]
[ECO "E68"]
[PlyCount "45"]
[EventDate "1973.??.??"]
[EventType "tourn (corr)"]
[EventRounds "12"]
[EventCountry "GER"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 0-0 5. 0-0 d6 6. d4 Nbd7 7. Nc3 e5 8. e4 c6 9. Rb1 a6 10. Qc2 b5 11. Rd1 Qe7 12. b3 Bb7 13. c5 Ne8 14. cxd6 Nxd6 15. dxe5 Nxe5 16. Nxe5 Bxe5 17. Ba3 Rfd8 18. f4 Bxc3 19. Qxc3 Nxe4 20. Bxe7 Nxc3 21. Bxd8 Nxb1 22. Ba5 Na3 23. Rd7 1-0

[Event "FRG-ch14 corr7376"]
[Site "GER corr"]
[Date "1973.??.??"]
[Round "?"]
[White "Koch, Berthold"]
[Black "Burkhardt, Joerger"]
[Result "0-1"]
[ECO "E63"]
[PlyCount "94"]
[EventDate "1973.??.??"]
[EventType "tourn (corr)"]
[EventRounds "12"]
[EventCountry "GER"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 0-0 5. Nf3 d6 6. 0-0 Nc6 7. Nc3 a6 8. h3 Rb8 9. Be3 e5 10. d5 Ne7 11. Rc1 Nh5 12. c5 f5 13. cxd6 cxd6 14. Bg5 h6 15. Bxe7 Qxe7 16. e4 Qf7 17. Nd2 b5 18. Qb3 Bf6 19. Qb4 Be7 20. Ne2 Bd7 21. Rc7 Bd8 22. Qxd6 Bxc7 23. Qxc7 b4 24. Qxe5 Bb5 25. Re1 fxe4 26. Nxe4 Rbd8 27. d6 Bc6 28. Rf1 Rfe8 29. Qd4 Qe6 30. f3 a5 31. g4 Bxe4 32. fxe4 Rxd6 33. Qe3 Nf6 34. Nf4 Nd5 35. Nxd5 Rxd5 36. Qxh6 Rd6 37. Qg5 Qe5 38. Qxe5 Rxe5 39. Rf2 Rd1+ 40. Kh2 Rc1 41. Re2 Rec5 42. e5 R5c2 43. Bd5+ Kf8 44. Rxc2 Rxc2+ 45. Kg3 Rxb2 46. Kf4 a4 47. Kg5 Rxa2 0-1

[Event "FRG-ch14 corr7376"]
[Site "GER corr"]
[Date "1973.??.??"]
[Round "?"]
[White "Koch, Berthold"]
[Black "Goebel, Wolfgang"]
[Result "0-1"]
[ECO "E02"]
[PlyCount "90"]
[EventDate "1973.??.??"]
[EventType "tourn (corr)"]
[EventRounds "12"]
[EventCountry "GER"]
[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. g3 d5 4. Bg2 dxc4 5. Qa4+ Nbd7 6. Nd2 c6 7. Qxc4 e5 8. Ngf3 Bd6 9. 0-0 0-0 10. Qc2 exd4 11. Nxd4 Nb6 12. N2f3 Re8 13. Rd1 Bd7 14. Nf5 Bf8 15. Bf4 Nbd5 16. Be5 Ng4 17. Bc3 g6 18. N5d4 Nxc3 19. Qxc3 Bg7 20. Qb3 Rb8 21. Rd2 Nf6 22. Rc1 Qe7 23. Rdc2 Ne4 24. e3 a6 25. Qb6 Qd8 26. Qxd8 Rbxd8 27. b4 Bf8 28. Rb1 Nd6 29. Rcc1 Nb5 30. h3 Bg7 31. Nxb5 axb5 32. g4 Be6 33. Rc2 Ra8 34. Rbc1 Bxa2 35. Nd2 Red8 36. Ne4 Bb3 37. Rd2 Rxd2 38. Nxd2 Be6 39. Ne4 Bf8 40. Nc5 Bxc5 41. bxc5 b4 42. Be4 b3 43. Kg2 Ra4 44. Bd3 b2 45. Rd1 Ra3 0-1

[Event "FRG-ch14 corr7376"]
[Site "GER corr"]
[Date "1973.??.??"]
[Round "?"]
[White "Koch, Berthold"]
[Black "Heemsoth, Hermann"]
[Result "1/2-1/2"]
[ECO "E08"]
[PlyCount "48"]
[EventDate "1973.??.??"]
[EventType "tourn (corr)"]
[EventRounds "12"]
[EventCountry "GER"]
[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. g3 d5 4. Bg2 Be7 5. Nf3 0-0 6. 0-0 Nbd7 7. Qc2 c6 8. Nbd2 b6 9. e4 Bb7 10. b3 Rc8 11. Bb2 Qc7 12. Rad1 Nxe4 13. Nxe4 dxe4 14. Qxe4 c5 15. d5 Nf6 16. Qc2 exd5 17. Be5 Qd8 18. Ng5 g6 19. h4 Bd6 20. Bxf6 Qxf6 21. Bxd5 Bxd5 22. Rxd5 Be5 23. Kg2 Rcd8 24. Rfd1 Rxd5 1/2-1/2

[Event "FRG-ch14 corr7376"]
[Site "GER corr"]
[Date "1973.??.??"]
[Round "?"]
[White "Koch, Berthold"]
[Black "Rickers, Gerhard"]
[Result "1/2-1/2"]
[ECO "D18"]
[PlyCount "38"]
[EventDate "1973.??.??"]
[EventType "tourn (corr)"]
[EventRounds "12"]
[EventCountry "GER"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Bf5 6. e3 e6 7. Bxc4 Bb4 8. 0-0 Nbd7 9. Qb3 a5 10. Na2 Be7 11. Nh4 Be4 12. Nc3 Qb6 13. Nxe4 Nxe4 14. Nf3 Qxb3 15. Bxb3 Bb4 16. Rd1 0-0 17. Nd2 Ndf6 18. Nf3 c5 19. Bd2 Bxd2 1/2-1/2

[Event "FRG-ch14 corr7376"]
[Site "GER corr"]
[Date "1973.??.??"]
[Round "?"]
[White "Koch, Berthold"]
[Black "Schiffer, J."]
[Result "1-0"]
[ECO "A56"]
[PlyCount "61"]
[EventDate "1973.??.??"]
[EventType "tourn (corr)"]
[EventRounds "12"]
[EventCountry "GER"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 e5 4. Nc3 d6 5. e4 Be7 6. g3 0-0 7. Bg2 Na6 8. Nge2 Nc7 9. 0-0 Rb8 10. a4 b6 11. f4 Nd7 12. Qd3 Na6 13. Be3 Nb4 14. Qd2 a6 15. f5 Nf6 16. Bf3 Ne8 17. Rf2 Nc7 18. g4 h6 19. g5 Bxg5 20. Rg2 Bxe3+ 21. Qxe3 Kh7 22. Ng3 g6 23. Kh1 Bd7 24. Rag1 Qf6 25. Bg4 Rfd8 26. Rf2 Qe7 27. fxg6+ fxg6 28. Rgf1 Kg7 29. Nh5+ gxh5 30. Bxh5 Kh8 31. Rf6 1-0

[Event "FRG-ch14 corr7376"]
[Site "GER corr"]
[Date "1973.??.??"]
[Round "?"]
[White "Koch, Berthold"]
[Black "Wagner, Ulrich"]
[Result "1-0"]
[ECO "E64"]
[PlyCount "93"]
[EventDate "1973.??.??"]
[EventType "tourn (corr)"]
[EventRounds "12"]
[EventCountry "GER"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 d6 5. Nf3 0-0 6. 0-0 c5 7. d5 Na6 8. Nc3 Nc7 9. a4 Rb8 10. Ra2 a6 11. a5 Nd7 12. Qc2 b5 13. axb6 Nxb6 14. b3 Bd7 15. Bf4 Qc8 16. e4 f6 17. Ne1 Bh3 18. Bc1 Bxg2 19. Kxg2 Nd7 20. f4 Rf7 21. Nf3 Qf8 22. Re1 Rb7 23. Bb2 Qb8 24. Ra3 Rf8 25. Nd1 Rb6 26. Bc3 Rb7 27. Nf2 Re8 28. e5 Qd8 29. e6 Nb6 30. h4 Qa8 31. h5 Reb8 32. hxg6 h6 33. f5 Nbxd5 34. cxd5 Nb5 35. Ra2 Nxc3 36. Qxc3 Rxb3 37. Qd2 R8b6 38. Rc1 R6b4 39. Nd1 h5 40. Nc3 Qb7 41. Qe2 Bh6 42. Rcc2 h4 43. Nxh4 Kg7 44. Nf3 Rb6 45. Nd2 Bxd2 46. Qxd2 Qc8 47. Ra1 1-0

[Event "FRG-ch14 corr7376"]
[Site "GER corr"]
[Date "1973.??.??"]
[Round "?"]
[White "Kunsztowicz, Uwe Wilhelm"]
[Black "Koch, Berthold"]
[Result "0-1"]
[ECO "B17"]
[PlyCount "62"]
[EventDate "1973.??.??"]
[EventType "tourn (corr)"]
[EventRounds "12"]
[EventCountry "GER"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nd7 5. Bc4 Ngf6 6. Ng5 e6 7. Ne2 h6 8. Nf3 Bd6 9. 0-0 Qc7 10. b3 0-0 11. Bb2 b6 12. Ng3 Bb7 13. Qe2 c5 14. Rad1 cxd4 15. Nxd4 Rfe8 16. Nb5 Qc6 17. f4 Bc5+ 18. Kh1 a6 19. Nc3 Rad8 20. Bd3 e5 21. Be4 Nxe4 22. Ncxe4 exf4 23. Rxf4 Nf8 24. Rdf1 Rd7 25. Qf3 Ree7 26. Qc3 f5 27. b4 Ng6 28. Qc4+ Kh7 29. Rxf5 Bd4 30. Qxc6 Bxc6 31. c3 Be3 0-1

[Event "FRG-ch14 corr7376"]
[Site "GER corr"]
[Date "1973.??.??"]
[Round "?"]
[White "Metz, Werner Richard"]
[Black "Koch, Berthold"]
[Result "1-0"]
[ECO "D42"]
[PlyCount "103"]
[EventDate "1973.??.??"]
[EventType "tourn (corr)"]
[EventRounds "12"]
[EventCountry "GER"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 e6 6. Nf3 Be7 7. cxd5 Nxd5 8. Bd3 Nc6 9. 0-0 0-0 10. Re1 Bd7 11. Nxd5 exd5 12. Ne5 Rc8 13. Be3 Be6 14. Rc1 Nxe5 15. dxe5 Rxc1 16. Bxc1 Qa5 17. a3 Rc8 18. Bd2 Qb6 19. b4 Qc7 20. f4 Qd7 21. Qf3 Bf5 22. Bxf5 Qxf5 23. Qxd5 Rd8 24. Qa2 Qd3 25. Be3 Kf8 26. Bxa7 Ra8 27. Qf2 Qc3 28. Bd4 Qxa3 29. Bc5 Qc3 30. Bxe7+ Kxe7 31. Qh4+ Ke8 32. Rd1 Qc2 33. Qg4 Rd8 34. Rxd8+ Kxd8 35. Qh4+ Kd7 36. Qe1 Ke6 37. h3 h6 38. Kh2 Qd3 39. Qc1 b5 40. Qc8+ Ke7 41. Qc7+ Kf8 42. Qc8+ Ke7 43. f5 Qd4 44. Qc7+ Ke8 45. e6 fxe6 46. fxe6 Qf6 47. Qd6 g5 48. Kg1 Qa1+ 49. Kf2 Qb2+ 50. Kg3 Qc3+ 51. Kg4 h5+ 52. Kxh5 1-0

[Event "FRG-ch14 corr7376"]
[Site "GER corr"]
[Date "1973.??.??"]
[Round "?"]
[White "Oechslein, Rainer"]
[Black "Koch, Berthold"]
[Result "1/2-1/2"]
[ECO "B17"]
[PlyCount "66"]
[EventDate "1973.??.??"]
[EventType "tourn (corr)"]
[EventRounds "12"]
[EventCountry "GER"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 c6 2. Nc3 d5 3. d4 dxe4 4. Nxe4 Nd7 5. Bc4 Ngf6 6. Ng5 e6 7. Qe2 Nb6 8. Bd3 h6 9. N5f3 c5 10. dxc5 Nbd7 11. Ne5 Nxe5 12. Qxe5 Qa5+ 13. Bd2 Qxc5 14. Nf3 Qxe5+ 15. Nxe5 Bc5 16. Bb5+ Ke7 17. Be2 Ne4 18. Nd3 Bd6 19. Be3 Bd7 20. f3 Nf6 21. c4 Rhc8 22. Rc1 b6 23. 0-0 Rc7 24. b4 Ke8 25. c5 bxc5 26. Bxc5 Bxc5+ 27. Nxc5 Nd5 28. a3 Ke7 29. Ba6 Rb8 30. Kf2 Bb5 31. Bxb5 Rxb5 32. Nb3 Nc3 33. Nc5 Nd5 1/2-1/2

[Event "FRG-ch14 corr7376"]
[Site "GER corr"]
[Date "1973.??.??"]
[Round "?"]
[White "Scherfke, Manfred"]
[Black "Koch, Berthold"]
[Result "1-0"]
[ECO "E63"]
[PlyCount "75"]
[EventDate "1973.??.??"]
[EventType "tourn (corr)"]
[EventRounds "12"]
[EventCountry "GER"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 0-0 5. d4 d6 6. Nc3 Nc6 7. 0-0 a6 8. h3 Rb8 9. Be3 b5 10. Nd2 Bd7 11. Rc1 e5 12. dxe5 Nxe5 13. b3 Re8 14. Nd5 bxc4 15. Nxf6+ Bxf6 16. Nxc4 Nxc4 17. Rxc4 Re7 18. Bd4 Bxd4 19. Rxd4 Qe8 20. e3 Bc6 21. Bxc6 Qxc6 22. Rc4 Qd7 23. Kg2 d5 24. Rd4 c6 25. Qd2 Qb7 26. Rc1 Qb5 27. Rc3 Re6 28. Qc2 Qb7 29. Rc5 Ra8 30. Qc3 Rb8 31. Ra5 Qb6 32. Rda4 Ra8 33. Qc5 Qxc5 34. Rxc5 Kf8 35. Rca5 Re7 36. Rxa6 Rxa6 37. Rxa6 Rb7 38. Rxc6 1-0

[Event "FRG-ch14 corr7376"]
[Site "GER corr"]
[Date "1973.??.??"]
[Round "?"]
[White "Weber, Viktor"]
[Black "Koch, Berthold"]
[Result "0-1"]
[ECO "E74"]
[PlyCount "52"]
[EventDate "1973.??.??"]
[EventType "tourn (corr)"]
[EventRounds "12"]
[EventCountry "GER"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 0-0 6. Bg5 c5 7. d5 h6 8. Be3 e6 9. Qd2 exd5 10. exd5 Kh7 11. h3 Na6 12. Bd3 Nc7 13. a4 b6 14. Nge2 a6 15. 0-0 Bb7 16. f4 b5 17. f5 bxc4 18. fxg6+ fxg6 19. Bxc4 Nd7 20. Nf4 Qe7 21. Rae1 Ne5 22. Bd3 Rf6 23. Ne4 Rxf4 24. Bxf4 Nxd5 25. Bxe5 dxe5 26. Ng3 Nb4 0-1

[Event "olm7 fin B5 corr"]
[Site "ICCF corr"]
[Date "1972.??.??"]
[Round "?"]
[White "Den Ouden, A."]
[Black "Koch, Berthold"]
[Result "1-0"]
[ECO "B36"]
[PlyCount "105"]
[EventDate "1972.??.??"]
[EventType "team (corr)"]
[EventRounds "9"]
[SourceTitle "Corr 2002"]
[Source "ChessBase"]
[SourceDate "2002.05.23"]
[SourceVersion "1"]
[SourceVersionDate "2002.05.23"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. c4 Nf6 6. Nc3 d6 7. f3 Nxd4 8. Qxd4 Bg7 9. Be3 0-0 10. Qd2 Qa5 11. Rc1 Be6 12. Nd5 Qxa2 13. Nxe7+ Kh8 14. Bd4 Rae8 15. Nd5 Nxd5 16. cxd5 Bxd5 17. Bb5 Bc6 18. Bc4 Qa4 19. Bxg7+ Kxg7 20. 0-0 Bb5 21. b3 Qa6 22. Qd4+ f6 23. Ra1 Qc6 24. Rfc1 Bxc4 25. Rxc4 Qd7 26. Rxa7 Rf7 27. Ra5 Re5 28. Rd5 Rxd5 29. Qxd5 Qd8 30. b4 Rd7 31. h3 Qg8 32. Qb5 Qe6 33. Rd4 Kf7 34. Rd5 Ke7 35. Qd3 Rc7 36. Kh2 Rc1 37. Qe3 Rc4 38. Qh6 Qf7 39. Rb5 Ke8 40. Qd2 Qe7 41. Qa2 Rc7 42. Ra5 Rc8 43. Ra7 Kf8 44. Qd5 Rb8 45. f4 Qc7 46. b5 Ke7 47. f5 Kf8 48. Ra3 Qc5 49. Rc3 Qxc3 50. Qxd6+ Kg7 51. Qxb8 gxf5 52. Qxb7+ Kh6 53. Qb8 1-0

[Event "olm7 fin B5 corr"]
[Site "ICCF corr"]
[Date "1972.??.??"]
[Round "?"]
[White "Koch, Berthold"]
[Black "Smrcka, Frantisek"]
[Result "1-0"]
[ECO "C28"]
[PlyCount "69"]
[EventDate "1972.??.??"]
[EventType "team (corr)"]
[EventRounds "9"]
[SourceTitle "Corr 2002"]
[Source "ChessBase"]
[SourceDate "2002.05.23"]
[SourceVersion "1"]
[SourceVersionDate "2002.05.23"]
[SourceQuality "1"]

1. e4 e5 2. Bc4 Nf6 3. d3 Nc6 4. Nc3 Na5 5. Nge2 Nxc4 6. dxc4 d6 7. 0-0 Be7 8. Qd3 0-0 9. Bg5 Be6 10. b3 h6 11. Bxf6 Bxf6 12. Rad1 b6 13. Nd5 Bg5 14. g3 f5 15. f4 fxe4 16. Qxe4 Bf5 17. Qg2 exf4 18. gxf4 Bf6 19. Ng3 Be6 20. Nxf6+ Qxf6 21. f5 Bf7 22. Ne4 Qh4 23. c3 Kh8 24. Rd4 Qh5 25. Rd3 Bg8 26. f6 Qf7 27. Rg3 g5 28. Rh3 Qg6 29. Qxg5 Kh7 30. Qxg6+ Kxg6 31. Rg3+ Kh7 32. Rf4 Bf7 33. Rg7+ Kh8 34. Rh4 h5 35. Ng5 1-0

[Event "corr1"]
[Site "corr"]
[Date "1972.??.??"]
[Round "?"]
[White "Koch, Berthold"]
[Black "Yudovich, Mikhail Mikhailovic"]
[Result "0-1"]
[ECO "B25"]
[PlyCount "86"]
[EventDate "1972.??.??"]
[EventType "tourn (corr)"]
[EventRounds "9"]
[SourceTitle "Corr 2000"]
[Source "ChessBase"]
[SourceDate "2000.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. f4 e6 7. Nf3 Nge7 8. 0-0 0-0 9. Be3 Nd4 10. Nh4 f5 11. Qd2 Rb8 12. Rae1 b5 13. Nd1 b4 14. c3 bxc3 15. bxc3 Ndc6 16. e5 dxe5 17. fxe5 Qa5 18. Bh6 Ba6 19. Nf2 Rbd8 20. Nf3 Nd5 21. Rc1 Rd7 22. Bxg7 Kxg7 23. c4 Ndb4 24. Rfd1 Qxa2 25. Ra1 Qxd2 26. Nxd2 Nxe5 27. Nb3 Rc7 28. Ra5 Nd7 29. Rda1 Rb8 30. Nc1 Rb6 31. Ne2 Nb8 32. Nc3 Nc2 33. Rc1 Nd4 34. Re1 Rb3 35. Na4 Ra3 36. Rb1 Ne2+ 37. Kf1 Rxa4 38. Rxa4 Nc3 39. Rxa6 Nxa6 40. Rb3 Na2 41. Bf3 N2b4 42. Ra3 Nb8 43. Ra5 Nd7 0-1

[Event "FRG-ch M245 corr"]
[Site "GER corr"]
[Date "1971.??.??"]
[Round "?"]
[White "Garscha, Freimut E"]
[Black "Koch, Berthold"]
[Result "1-0"]
[ECO "C29"]
[PlyCount "31"]
[EventDate "1971.??.??"]
[EventType "game (corr)"]
[EventRounds "6"]
[EventCountry "GER"]
[SourceTitle "Corr 2000"]
[Source "ChessBase"]
[SourceDate "2000.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 e5 2. Nc3 Nf6 3. f4 d5 4. fxe5 Nxe4 5. d3 Nxc3 6. bxc3 d4 7. Nf3 Nc6 8. cxd4 Nxd4 9. c3 Nxf3+ 10. Qxf3 Bc5 11. Qe4 0-0 12. d4 Bb6 13. Bd3 f5 14. exf6 Re8 15. f7+ Kxf7 16. 0-0+ 1-0

[Event "corr"]
[Site "corr"]
[Date "1971.??.??"]
[Round "?"]
[White "Kunsztowicz, Uwe Wilhelm"]
[Black "Koch, Berthold"]
[Result "1-0"]
[ECO "A65"]
[PlyCount "77"]
[EventDate "1971.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 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. Be2 0-0 6. Bg5 c5 7. d5 e6 8. Qd2 exd5 9. cxd5 Re8 10. f3 Na6 11. h4 Nb8 12. h5 Nbd7 13. Nh3 a6 14. a4 Qa5 15. hxg6 fxg6 16. Ra3 Rb8 17. Bh6 Qb4 18. Bxg7 Kxg7 19. Nf4 Ne5 20. g4 c4 21. g5 Ng8 22. Ng2 Qc5 23. Ne3 b5 24. axb5 axb5 25. Ra5 Bd7 26. f4 Nd3+ 27. Bxd3 cxd3 28. Qxd3 Ra8 29. Rxa8 Rxa8 30. Kf2 b4 31. Ne2 h6 32. Rc1 Qb6 33. Qd4+ Qxd4 34. Nxd4 Ra7 35. Nc4 hxg5 36. fxg5 Ra6 37. Ke3 Ne7 38. Rf1 Ng8 39. b3 1-0

[Event "DEN-FRG corr"]
[Site "Denmark"]
[Date "1971.??.??"]
[Round "?"]
[White "Pedersen, J."]
[Black "Koch, Berthold"]
[Result "0-1"]
[ECO "E84"]
[PlyCount "76"]
[EventDate "1971.??.??"]
[EventType "tourn (corr)"]
[EventRounds "2"]
[EventCountry "DEN"]
[SourceTitle "Corr 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. f3 0-0 6. Be3 Nc6 7. Nge2 a6 8. Qd2 Rb8 9. Rd1 Re8 10. Nc1 e5 11. Nb3 exd4 12. Nxd4 Nh5 13. Be2 Bd7 14. 0-0 Nf4 15. Rfe1 Nxe2+ 16. Rxe2 Ne5 17. b3 b5 18. cxb5 axb5 19. Qe1 b4 20. Nd5 c6 21. Nf4 c5 22. Nc2 Bb5 23. Red2 Qa5 24. Qh4 Qxa2 25. Na1 Qa3 26. Nd5 Nd7 27. Ne7+ Rxe7 28. Qxe7 Bxa1 29. Qxd6 Qxb3 30. Bxc5 Be5 31. Qe7 Bf6 32. Qd6 Re8 33. Bd4 Be5 34. Bxe5 Nxe5 35. Qc5 Qc4 36. Rc1 Qxc5+ 37. Rxc5 Ba6 38. Rd6 Be2 0-1

[Event "corr"]
[Site "corr"]
[Date "1971.??.??"]
[Round "?"]
[White "Winkelmann, Herbert"]
[Black "Koch, Berthold"]
[Result "0-1"]
[ECO "C57"]
[PlyCount "34"]
[EventDate "1971.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[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. Ng5 Bc5 5. Bxf7+ Ke7 6. Bb3 Rf8 7. 0-0 h6 8. Nf3 d6 9. h3 Qe8 10. Nc3 Kd8 11. d3 Qg6 12. Kh2 Ng4+ 13. Kg1 Nxf2 14. Rxf2 Qg3 15. Qe2 Bxh3 16. Kf1 Bxg2+ 17. Rxg2 Rxf3+ 0-1

[Event "FRG-ch12 corr7073"]
[Site "GER corr"]
[Date "1970.??.??"]
[Round "?"]
[White "Boeven, Manfred"]
[Black "Koch, Berthold"]
[Result "0-1"]
[ECO "B09"]
[PlyCount "80"]
[EventDate "1970.??.??"]
[EventType "tourn (corr)"]
[EventRounds "12"]
[EventCountry "GER"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 0-0 6. Bd3 Nc6 7. e5 dxe5 8. fxe5 Ng4 9. h3 Nh6 10. Be3 Nf5 11. Bxf5 Bxf5 12. g4 Bc8 13. Qd2 Nb4 14. 0-0-0 Nd5 15. Ne4 Nxe3 16. Qxe3 Qd5 17. Kb1 b6 18. c4 Qxc4 19. Rc1 Qd5 20. Rxc7 Be6 21. Nc3 Qa5 22. Rd1 Rfc8 23. Rxc8+ Rxc8 24. d5 Bd7 25. Ng5 Ba4 26. Rf1 Be8 27. Qf3 h6 28. e6 f5 29. d6 exd6 30. Nd5 hxg5 31. Ne7+ Kh7 32. Nxc8 Qe5 33. Qb3 Qe4+ 34. Ka1 Ba4 35. Qa3 Qe2 36. Rc1 Qd2 37. Kb1 Bb5 38. Rh1 Bd3+ 39. Ka1 Bc2 40. Qxd6 Bxb2+ 0-1

[Event "FRG-ch12 corr7073"]
[Site "GER corr"]
[Date "1970.??.??"]
[Round "?"]
[White "Eder, Gunter"]
[Black "Koch, Berthold"]
[Result "1/2-1/2"]
[ECO "E94"]
[PlyCount "85"]
[EventDate "1970.??.??"]
[EventType "tourn (corr)"]
[EventRounds "12"]
[EventCountry "GER"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 0-0 6. Nf3 e5 7. 0-0 c6 8. d5 Na6 9. Bg5 h6 10. Bh4 g5 11. Bg3 Nh5 12. Nd2 Nf4 13. Bg4 Nc5 14. Bxc8 Rxc8 15. Nb3 cxd5 16. Nxc5 Rxc5 17. cxd5 Qa5 18. f3 b5 19. a3 Rc7 20. Bf2 Rfc8 21. Be3 Bf6 22. g3 Ng6 23. Qe2 Rc4 24. Qf2 R8c7 25. Kh1 Rb7 26. Qe2 Qc7 27. Rfc1 Qd7 28. Na2 Rbc7 29. Nb4 Ne7 30. Rxc4 Rxc4 31. Rc1 Rxc1+ 32. Bxc1 Qc8 33. Be3 a6 34. Bb6 h5 35. Kg2 g4 36. Nd3 Bg5 37. Nf2 f5 38. Ba5 Kg7 39. Bb4 Qc7 40. h4 gxh3+ 41. Nxh3 Bf6 42. Bc3 Kg6 43. Qe3 1/2-1/2

[Event "FRG-ch M229 corr"]
[Site "GER corr"]
[Date "1970.??.??"]
[Round "?"]
[White "Kny, Adolf"]
[Black "Koch, Berthold"]
[Result "0-1"]
[ECO "E68"]
[PlyCount "78"]
[EventDate "1970.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[EventCountry "GER"]
[SourceTitle "Corr 2000"]
[Source "ChessBase"]
[SourceDate "2000.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Nf3 0-0 5. Bg2 d6 6. 0-0 Nbd7 7. Qc2 e5 8. Rd1 Re8 9. Nc3 c6 10. h3 Qe7 11. e4 exd4 12. Nxd4 Nc5 13. f3 a5 14. Be3 Nfd7 15. Bf2 Ne5 16. Nce2 Be6 17. Nxe6 Qxe6 18. Rac1 Bh6 19. Nd4 Qe7 20. Rb1 a4 21. f4 Ned7 22. Re1 Nf6 23. e5 Nfd7 24. Nf3 Bg7 25. exd6 Qxd6 26. Rbd1 Rxe1+ 27. Bxe1 Qc7 28. Qe2 Nf6 29. Ne5 Re8 30. Qc2 Nh5 31. Bf2 Qa5 32. Nd7 Ne6 33. c5 Rd8 34. f5 Nd4 35. Qe4 Qc7 36. Nb6 Nxg3 37. Bxg3 Qxg3 38. fxg6 hxg6 39. Kh1 Be5 0-1

[Event "FRG-ch12 corr7073"]
[Site "GER corr"]
[Date "1970.??.??"]
[Round "?"]
[White "Koch, Berthold"]
[Black "Duenhaupt, Heinz Wilhelm"]
[Result "0-1"]
[ECO "E09"]
[PlyCount "62"]
[EventDate "1970.??.??"]
[EventType "tourn (corr)"]
[EventRounds "12"]
[EventCountry "GER"]
[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. g3 d5 4. Bg2 Be7 5. Nf3 0-0 6. 0-0 Nbd7 7. Qc2 c6 8. Nbd2 b6 9. b3 Bb7 10. Bb2 Qb8 11. Rac1 Rc8 12. Qb1 a5 13. a3 c5 14. a4 dxc4 15. Nxc4 Be4 16. Qa1 Qb7 17. Ne1 b5 18. Nd2 Bd5 19. Bxd5 exd5 20. dxc5 bxa4 21. bxa4 Nxc5 22. Nef3 Qd7 23. Ne5 Qe8 24. Bd4 Rab8 25. Bc3 Nxa4 26. Bxa5 Qb5 27. Bc7 Ra8 28. Nd3 Nc5 29. Qe5 Nxd3 30. exd3 Ba3 31. Rcd1 Qc6 0-1

[Event "FRG-ch12 corr7073"]
[Site "GER corr"]
[Date "1970.??.??"]
[Round "?"]
[White "Koch, Berthold"]
[Black "Flum, Gerhard"]
[Result "1-0"]
[ECO "E69"]
[PlyCount "109"]
[EventDate "1970.??.??"]
[EventType "tourn (corr)"]
[EventRounds "12"]
[EventCountry "GER"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 d6 5. Nf3 0-0 6. 0-0 Nbd7 7. Nc3 e5 8. e4 c6 9. h3 Ne8 10. Bg5 f6 11. Be3 f5 12. Qd2 Qf6 13. exf5 gxf5 14. Bg5 Qf7 15. b3 f4 16. Rae1 h6 17. Bh4 exd4 18. Ne2 Ndf6 19. Nfxd4 f3 20. Nxf3 Ne4 21. Qe3 N8f6 22. Nfd4 Re8 23. Qd3 Bd7 24. f4 a5 25. g4 Nc5 26. Qc2 Nfe4 27. Rd1 h5 28. g5 Bf5 29. Qc1 Qg6 30. Nxf5 Qxf5 31. Nd4 Bxd4+ 32. Rxd4 Re6 33. Kh2 Rf8 34. Be1 Nxg5 35. h4 Nf7 36. Qd1 Nh6 37. Bh3 Ng4+ 38. Bxg4 hxg4 39. Rg1 Kh7 40. Rxd6 Re3 41. Bg3 Rfe8 42. Rg2 Nd3 43. Qc2 Qe4 44. Rd7+ Kh6 45. Qd1 Ne1 46. Qd6+ Qg6 47. Bxe1 Rh3+ 48. Kg1 Rxe1+ 49. Kf2 Rhe3 50. Qf8+ Kh5 51. Qc5+ Kh6 52. Qg5+ Qxg5 53. hxg5+ Kh5 54. Rh7+ Kg6 55. Rh6+ 1-0

[Event "FRG-ch12 corr7073"]
[Site "GER corr"]
[Date "1970.??.??"]
[Round "?"]
[White "Koch, Berthold"]
[Black "Franke, Roland"]
[Result "1/2-1/2"]
[ECO "A43"]
[PlyCount "57"]
[EventDate "1970.??.??"]
[EventType "tourn (corr)"]
[EventRounds "12"]
[EventCountry "GER"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. d4 c5 2. d5 d6 3. e4 g6 4. Nc3 Bg7 5. Nf3 Nf6 6. Be2 Na6 7. Nd2 0-0 8. 0-0 Nc7 9. a4 a6 10. Nc4 b5 11. axb5 axb5 12. Rxa8 Nxa8 13. Nxb5 Nxe4 14. Bf3 Ba6 15. Nba3 Nf6 16. Bd2 Qb8 17. Re1 Nb6 18. Nxb6 Qxb6 19. Bc3 Nd7 20. Qd2 Rb8 21. Bxg7 Kxg7 22. b3 c4 23. Nxc4 Bxc4 24. bxc4 Qb4 25. Qxb4 Rxb4 26. Be2 Ra4 27. Bf1 Kf6 28. f4 h5 29. Kf2 1/2-1/2

[Event "FRG-ch12 corr7073"]
[Site "GER corr"]
[Date "1970.??.??"]
[Round "?"]
[White "Koch, Berthold"]
[Black "Gudat, Alfons"]
[Result "1-0"]
[ECO "D71"]
[PlyCount "105"]
[EventDate "1970.??.??"]
[EventType "tourn (corr)"]
[EventRounds "12"]
[EventCountry "GER"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. c4 Nf6 2. d4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. g3 Bg7 6. Bg2 Nxc3 7. bxc3 c5 8. e3 0-0 9. Ne2 Nc6 10. 0-0 Qa5 11. a4 Rd8 12. Ba3 cxd4 13. cxd4 Bf5 14. Qb3 Qa6 15. Nf4 Na5 16. Qb5 Qxb5 17. axb5 e5 18. Nd5 Nb3 19. Ne7+ Kh8 20. Nxf5 gxf5 21. Rad1 exd4 22. Bxb7 Rab8 23. Bc6 d3 24. Be7 Bc3 25. Bxd8 Rxd8 26. Bf3 Nd2 27. Rxd2 Bxd2 28. Ra1 Bc3 29. Rxa7 d2 30. Rxf7 d1Q+ 31. Bxd1 Rxd1+ 32. Kg2 Rb1 33. Rxf5 Rb2 34. h4 Kg7 35. Kh3 Be1 36. f3 Kg6 37. e4 h6 38. h5+ Kg7 39. Rd5 Kf6 40. Rd6+ Ke5 41. Rxh6 Kd4 42. Rf6 Rxb5 43. Kg4 Rb2 44. Kf4 Bd2+ 45. Kf5 Rb5+ 46. Kg4 Rg5+ 47. Kh4 Rg8 48. Rd6+ Ke3 49. f4 Bb4 50. Rg6 Rf8 51. e5 Kf3 52. h6 Be7+ 53. Kh5 1-0

[Event "corr"]
[Site "corr"]
[Date "1970.??.??"]
[Round "?"]
[White "Koch, Berthold"]
[Black "Leppek, Ernst"]
[Result "1-0"]
[ECO "E64"]
[PlyCount "89"]
[EventDate "1970.??.??"]
[EventType "tourn (corr)"]
[EventRounds "9"]
[SourceTitle "Corr 2000"]
[Source "ChessBase"]
[SourceDate "2000.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 0-0 5. Nf3 c5 6. d5 d6 7. 0-0 Na6 8. Nc3 Nc7 9. a4 Rb8 10. Bf4 a6 11. a5 b5 12. axb6 Rxb6 13. Na4 Rb7 14. Ne1 Ra7 15. e4 Bd7 16. Nd3 a5 17. e5 Nfe8 18. Nb6 Bf5 19. Re1 Na6 20. Na4 Nb4 21. Nxb4 axb4 22. b3 g5 23. Bxg5 Bxe5 24. Rxe5 dxe5 25. Nxc5 Qa8 26. Ra4 f6 27. Bh6 Rxa4 28. Nxa4 Rf7 29. g4 Bd7 30. d6 Qb8 31. c5 exd6 32. Bd5 Bxa4 33. bxa4 dxc5 34. Bxf7+ Kxf7 35. Qd7+ Kg6 36. Bc1 Qd6 37. Qxe8+ Kg7 38. Qb5 Qd1+ 39. Qf1 Qxa4 40. Qd3 b3 41. h3 c4 42. Qd6 Qa5 43. Bh6+ Kg6 44. Qf8 Qa1+ 45. Kg2 1-0

[Event "FRG-ch12 corr7073"]
[Site "GER corr"]
[Date "1970.??.??"]
[Round "?"]
[White "Koch, Berthold"]
[Black "Maeder, Karl Heinz"]
[Result "1/2-1/2"]
[ECO "E66"]
[PlyCount "38"]
[EventDate "1970.??.??"]
[EventType "tourn (corr)"]
[EventRounds "12"]
[EventCountry "GER"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 0-0 5. Nc3 d6 6. Nf3 Nc6 7. 0-0 a6 8. d5 Na5 9. Nd2 c5 10. Qc2 Rb8 11. b3 e5 12. Bb2 b5 13. Nd1 Nh5 14. e3 f5 15. f4 e4 16. Bxg7 Nxg7 17. Nf2 Bd7 18. Qc3 Nb7 19. Rab1 a5 1/2-1/2

[Event "FRG-ch12 corr7073"]
[Site "GER corr"]
[Date "1970.??.??"]
[Round "?"]
[White "Koch, Berthold"]
[Black "Schmaus, Adolf"]
[Result "0-1"]
[ECO "D78"]
[PlyCount "58"]
[EventDate "1970.??.??"]
[EventType "tourn (corr)"]
[EventRounds "12"]
[EventCountry "GER"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 0-0 5. Nf3 c6 6. 0-0 d5 7. Nbd2 a5 8. Ne5 Nbd7 9. Ndf3 Nxe5 10. dxe5 Ne4 11. cxd5 cxd5 12. Be3 Be6 13. Rc1 Qd7 14. Qd3 Rfc8 15. Bd4 Qa4 16. a3 Ra6 17. Rxc8+ Bxc8 18. Nd2 Nxd2 19. Qxd2 e6 20. e4 dxe4 21. Bxe4 Ra8 22. Rc1 Qd7 23. Qc3 h5 24. h4 a4 25. Kg2 Qd8 26. f4 Bd7 27. Bxb7 Rb8 28. Qc7 Qxc7 29. Rxc7 Rxb7 0-1

[Event "FRG-ch12 corr7073"]
[Site "GER corr"]
[Date "1970.??.??"]
[Round "?"]
[White "Peric, Stefan"]
[Black "Koch, Berthold"]
[Result "1-0"]
[ECO "C98"]
[PlyCount "67"]
[EventDate "1970.??.??"]
[EventType "tourn (corr)"]
[EventRounds "12"]
[EventCountry "GER"]
[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 Nf6 5. 0-0 Be7 6. Re1 b5 7. Bb3 d6 8. c3 0-0 9. h3 Na5 10. Bc2 c5 11. d4 Qc7 12. Nbd2 Nc6 13. d5 Nd8 14. a4 Rb8 15. b4 cxb4 16. cxb4 bxa4 17. Rxa4 Bd7 18. Rxa6 Rxb4 19. Ba3 Rb8 20. Bd3 Re8 21. Qa1 Bb5 22. Rc1 Qd7 23. Bxb5 Rxb5 24. Qc3 Bf8 25. g4 Qb7 26. Ra4 Nd7 27. Rb4 Nc5 28. Rxb5 Qxb5 29. Bxc5 Qxc5 30. Qxc5 dxc5 31. Rb1 f6 32. Rb8 Kf7 33. Nc4 g6 34. g5 1-0

[Event "FRG-ch12 corr7073"]
[Site "GER corr"]
[Date "1970.??.??"]
[Round "?"]
[White "Rosen, Willy"]
[Black "Koch, Berthold"]
[Result "1-0"]
[ECO "B11"]
[PlyCount "89"]
[EventDate "1970.??.??"]
[EventType "tourn (corr)"]
[EventRounds "12"]
[EventCountry "GER"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 c6 2. Nc3 d5 3. Nf3 Bg4 4. h3 Bxf3 5. Qxf3 Nf6 6. d3 e6 7. Bd2 Nbd7 8. g4 Bb4 9. g5 Ng8 10. Qg3 d4 11. Nb1 Bxd2+ 12. Nxd2 e5 13. h4 Ne7 14. Bh3 Ng6 15. Nc4 Qe7 16. h5 Nf4 17. Bxd7+ Kxd7 18. Qg4+ Kc7 19. 0-0-0 f6 20. Rdg1 h6 21. gxh6 gxh6 22. Qg7 Rae8 23. Kb1 Rh7 24. Qg4 b5 25. Nd2 a5 26. Rg3 a4 27. a3 Rb8 28. Ka1 Kb6 29. Qf5 Ka6 30. Rb1 Rg7 31. Nf3 b4 32. Rxg7 Qxg7 33. Nxd4 bxa3 34. b4 axb3 35. Nxb3 Qe7 36. d4 Ne2 37. Nc5+ Ka7 38. Qf3 Rxb1+ 39. Kxb1 a2+ 40. Kxa2 Qf7+ 41. d5 Nd4 42. Qa3+ Kb8 43. Qb4+ Kc8 44. Qa5 Qc7 45. Qa6+ 1-0

[Event "FRG-ch12 corr7073"]
[Site "GER corr"]
[Date "1970.??.??"]
[Round "?"]
[White "Russ, Heinz"]
[Black "Koch, Berthold"]
[Result "1/2-1/2"]
[ECO "B09"]
[PlyCount "28"]
[EventDate "1970.??.??"]
[EventType "tourn (corr)"]
[EventRounds "12"]
[EventCountry "GER"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 0-0 6. e5 dxe5 7. dxe5 Qxd1+ 8. Kxd1 Rd8+ 9. Ke1 Ne8 10. Be3 Nc6 11. Bb5 Nb4 12. Ba4 Bd7 13. Bb3 Be6 14. Ba4 Bd7 1/2-1/2

[Event "FRG-ch12 corr7073"]
[Site "GER corr"]
[Date "1970.??.??"]
[Round "?"]
[White "Schreiber, Werner"]
[Black "Koch, Berthold"]
[Result "1-0"]
[ECO "B13"]
[PlyCount "69"]
[EventDate "1970.??.??"]
[EventType "tourn (corr)"]
[EventRounds "12"]
[EventCountry "GER"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. Bd3 Nc6 5. c3 Nf6 6. Bf4 Bg4 7. Qb3 Qc8 8. Nd2 e6 9. Ngf3 Be7 10. Ne5 Nxe5 11. dxe5 Nd7 12. 0-0 0-0 13. Qc2 g6 14. Nb3 Nc5 15. Nd4 a6 16. Qd2 Bf5 17. Bxf5 exf5 18. Bh6 Rd8 19. Rfe1 Ne6 20. Be3 Qc4 21. h3 b5 22. a3 Rac8 23. Rac1 Qc7 24. f4 Qd7 25. Qe2 h5 26. Rcd1 Nc5 27. g4 fxg4 28. f5 gxh3 29. Kh1 Kh7 30. Rg1 Qe8 31. Rg3 Ne4 32. Rxh3 h4 33. Qg4 Kg8 34. f6 Nxf6 35. Qxh4 1-0

[Event "FRG-ch corr"]
[Site "GER corr"]
[Date "1969.??.??"]
[Round "?"]
[White "Risch, Herbert"]
[Black "Koch, Berthold"]
[Result "0-1"]
[ECO "C44"]
[PlyCount "82"]
[EventDate "1969.??.??"]
[EventType "tourn (corr)"]
[EventRounds "13"]
[EventCountry "GER"]
[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. c3 d5 5. exd5 Qxd5 6. cxd4 Bg4 7. Be2 Nf6 8. Nc3 Qa5 9. 0-0 0-0-0 10. Be3 Be7 11. a3 Qf5 12. b4 Bd6 13. Rc1 Qh5 14. g3 Rhe8 15. Nb5 Ne7 16. Nxd6+ Rxd6 17. Re1 Ned5 18. Nh4 Bxe2 19. Qxe2 Qxe2 20. Rxe2 Nxe3 21. fxe3 Rxd4 22. Rxc7+ Kxc7 23. Rc2+ Kd7 24. exd4 Ng4 25. Rc5 g6 26. h3 b6 27. Rc3 Re3 28. Rxe3 Nxe3 29. Nf3 f6 30. Ne1 Nf5 31. Kf2 Kd6 32. Nc2 Kd5 33. Ne3+ Kxd4 34. Ng4 Nd6 35. Nxf6 Ne4+ 36. Nxe4 Kxe4 37. Ke2 b5 38. h4 h6 39. Kf2 g5 40. h5 g4 41. Ke2 a6 0-1

[Event "FRG-ch11 sf corr"]
[Site "GER corr"]
[Date "1968.??.??"]
[Round "?"]
[White "Koch, Berthold"]
[Black "Krause, Christian"]
[Result "1-0"]
[ECO "A75"]
[PlyCount "79"]
[EventDate "1968.??.??"]
[EventType "tourn (corr)"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "Corr 2000"]
[Source "ChessBase"]
[SourceDate "2000.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. Nf3 g6 7. e4 Bg7 8. Be2 0-0 9. 0-0 a6 10. a4 Bg4 11. Bf4 Bxf3 12. Bxf3 Ne8 13. Qd2 b6 14. Be2 Nd7 15. Rfe1 Ne5 16. Bg3 f6 17. f4 Nf7 18. Bc4 Kh8 19. Qd3 Nc7 20. Rab1 Qd7 21. b4 a5 22. bxc5 bxc5 23. Rb7 Rfb8 24. Reb1 Rxb7 25. Rxb7 Qc8 26. Qb1 Nd8 27. Rb6 Qd7 28. Rb8 Rxb8 29. Qxb8 Ne8 30. Bb5 Qc7 31. Qa8 f5 32. Ne2 Nf6 33. e5 Ne4 34. Be1 c4 35. Qxa5 Qc5+ 36. Kf1 h5 37. Be8 Qc8 38. exd6 Nxd6 39. Bxg6 N8b7 40. Qb6 1-0

[Event "FRG-ch11 sf corr"]
[Site "GER corr"]
[Date "1968.??.??"]
[Round "?"]
[White "Koch, Berthold"]
[Black "Laschek, Gerald"]
[Result "1-0"]
[ECO "D35"]
[PlyCount "47"]
[EventDate "1968.??.??"]
[EventType "tourn (corr)"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "Corr 2000"]
[Source "ChessBase"]
[SourceDate "2000.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 c6 4. cxd5 exd5 5. Bf4 Nf6 6. e3 Be7 7. Bd3 Nbd7 8. Qc2 0-0 9. g4 g6 10. h4 Nxg4 11. h5 f5 12. hxg6 hxg6 13. 0-0-0 Bg5 14. Nh3 Bh4 15. Rdg1 Kf7 16. f3 Ngf6 17. Bg5 Bxg5 18. Nxg5+ Ke7 19. Bxf5 gxf5 20. Qxf5 Nb6 21. Qe5+ Kd7 22. Ne6 Qe7 23. Nxf8+ Qxf8 24. Rg6 1-0

[Event "olm6 fin B1 corr"]
[Site "ICCF corr"]
[Date "1968.??.??"]
[Round "?"]
[White "Moghadam, S."]
[Black "Koch, Berthold"]
[Result "0-1"]
[ECO "D98"]
[PlyCount "92"]
[EventDate "1968.??.??"]
[EventType "team (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 g6 3. d4 Bg7 4. Nc3 d5 5. Qb3 dxc4 6. Qxc4 0-0 7. e4 Bg4 8. Be3 Nfd7 9. Be2 Nb6 10. Qc5 c6 11. Rd1 N8d7 12. Qa5 e5 13. d5 cxd5 14. Nxd5 Nxd5 15. Qxd5 Be6 16. Qd2 Nf6 17. Qb4 a5 18. Qa3 Qc7 19. Ng5 Bg4 20. Rc1 Qd7 21. Rd1 Qc6 22. Rc1 Qe8 23. Bxg4 Nxg4 24. 0-0 Nxe3 25. Qxe3 Bh6 26. Ra1 a4 27. Qg3 Qe7 28. Nf3 Ra5 29. Rfd1 Rb5 30. Rab1 Rd8 31. Re1 Rd3 32. Qh3 Kg7 33. Qg4 Qd8 34. h4 Bd2 35. Re2 h5 36. Qh3 Bc3 37. Kh2 Rd1 38. Rxd1 Qxd1 39. Re3 Bxb2 40. Qc8 Bc1 41. Qe8 Bxe3 42. fxe3 Qf1 43. Ng5 Rb2 44. Qxe5+ Qf6 45. Qd5 Re2 46. Qxb7 Qf2 0-1

[Event "olm6 fin B1 corr"]
[Site "ICCF corr"]
[Date "1968.??.??"]
[Round "?"]
[White "Secchi Vigneau, Eduardo Bautista"]
[Black "Koch, Berthold"]
[Result "1-0"]
[ECO "B39"]
[PlyCount "77"]
[EventDate "1968.??.??"]
[EventType "team (corr)"]
[EventRounds "9"]
[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 g6 5. c4 Bg7 6. Be3 Nf6 7. Nc3 Ng4 8. Qxg4 Nxd4 9. Qd1 e5 10. Qd2 0-0 11. 0-0-0 a6 12. Ne2 Nc6 13. c5 Qe7 14. f3 Rd8 15. Kb1 b5 16. cxb6 d5 17. Nc3 d4 18. Bg5 f6 19. Nd5 Qd6 20. Rc1 Ne7 21. Nxe7+ Qxe7 22. Bh6 Bxh6 23. Qxh6 Be6 24. Bd3 Rd7 25. Rc6 Rb7 26. Rhc1 Bd7 27. Bc4+ Kh8 28. Bxa6 Bxc6 29. Rxc6 Rd7 30. Bc8 Qf7 31. a3 Re7 32. b7 Rb8 33. Rd6 Re8 34. Rd7 Re7 35. Rd8+ Re8 36. Rxe8+ Qxe8 37. Qc1 Qd8 38. Qc5 d3 39. Qd5 1-0

[Event "DDR Team-ch"]
[Site "German Dem Rep"]
[Date "1967.03.19"]
[Round "8.7"]
[White "Koch, Berthold"]
[Black "Starke, Burkhard"]
[Result "1-0"]
[ECO "B15"]
[PlyCount "41"]
[EventDate "1967.01.07"]
[EventType "team-tourn"]
[EventRounds "18"]
[EventCountry "DDR"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]
[WhiteTeam "Berlin DAW II"]
[BlackTeam "Leipzig SC III"]
[WhiteTeamCountry "DDR"]
[BlackTeamCountry "DDR"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Ng3 e5 6. Qe2 Qxd4 7. Nf3 Bb4+ 8. c3 Bxc3+ 9. bxc3 Qxc3+ 10. Qd2 Qxa1 11. Bc4 Be6 12. Bxe6 fxe6 13. 0-0 Nd5 14. Ne4 Qb1 15. Nd6+ Kd7 16. Ba3 Qb6 17. Nxe5+ Kc7 18. Qg5 Nd7 19. Nxd7 Kxd7 20. Qxg7+ Ne7 21. Nc4 1-0

[Event "Eberhardt Wilhelm Cup final-B corr"]
[Site "ICCF corr"]
[Date "1966.??.??"]
[Round "?"]
[White "Jablonski, Jerzy"]
[Black "Koch, Berthold"]
[Result "1/2-1/2"]
[ECO "B17"]
[PlyCount "69"]
[EventDate "1966.??.??"]
[EventType "tourn (corr)"]
[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 Nd7 5. Nf3 Ngf6 6. Nc3 e6 7. Bd3 Be7 8. 0-0 b6 9. Qe2 Bb7 10. Bg5 c5 11. Rad1 cxd4 12. Nxd4 0-0 13. Nxe6 fxe6 14. Qxe6+ Kh8 15. Qh3 Qe8 16. Rfe1 g6 17. Bb5 Qf7 18. Bxd7 Nxd7 19. Bxe7 Qxf2+ 20. Kh1 Rf7 21. Bg5 Qxc2 22. Rd2 Qf5 23. Qxf5 gxf5 24. Re7 Rxe7 25. Bxe7 Bc6 26. Rd6 Rc8 27. Kg1 Kg8 28. Bg5 Ne5 29. Nd5 Bxd5 30. Rxd5 Rc5 31. Rxc5 bxc5 32. b3 c4 33. bxc4 Nxc4 34. Kf2 Kf7 35. Kf3 1/2-1/2

[Event "Eberhardt Wilhelm Cup final-B corr"]
[Site "ICCF corr"]
[Date "1966.??.??"]
[Round "?"]
[White "Koch, Berthold"]
[Black "Vistanietzki, Itzchak"]
[Result "0-1"]
[ECO "C27"]
[PlyCount "54"]
[EventDate "1966.??.??"]
[EventType "tourn (corr)"]
[SourceTitle "Corr 2000"]
[Source "ChessBase"]
[SourceDate "2000.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 e5 2. Nc3 Nf6 3. Bc4 Bc5 4. d3 d6 5. f4 Be6 6. Bxe6 fxe6 7. fxe5 dxe5 8. Nf3 Nc6 9. Na4 Bd4 10. c3 Bb6 11. Nxb6 axb6 12. 0-0 0-0 13. Bg5 Qe8 14. Qb3 h6 15. Bh4 Nh5 16. Rad1 Nf4 17. Rd2 Qg6 18. a4 Rf7 19. Qd1 Raf8 20. b4 Qg4 21. b5 Nh3+ 22. Kh1 Qxh4 23. bxc6 bxc6 24. a5 bxa5 25. Qa4 Ng5 26. Rg1 Rxf3 27. gxf3 Nxf3 0-1

[Event "FRG-ch H corr"]
[Site "GER corr"]
[Date "1966.??.??"]
[Round "?"]
[White "Nadenau, Oskar"]
[Black "Koch, Berthold"]
[Result "1-0"]
[ECO "C89"]
[PlyCount "63"]
[EventDate "1966.??.??"]
[EventType "tourn (corr)"]
[EventRounds "9"]
[EventCountry "GER"]
[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 Nf6 5. 0-0 b5 6. Bb3 Be7 7. Re1 0-0 8. c3 d5 9. exd5 Nxd5 10. Nxe5 Nxe5 11. Rxe5 c6 12. Bxd5 cxd5 13. d4 Bd6 14. Re3 f5 15. Nd2 f4 16. Re1 Qh4 17. Nf3 Qh5 18. Qb3 Bh3 19. Ne5 Bxg2 20. Kxg2 Bxe5 21. Qxd5+ Kh8 22. dxe5 f3+ 23. Kh1 Rad8 24. Qc5 Qg4 25. Qxf8+ Rxf8 26. Rg1 Qe4 27. Be3 Rf5 28. Rad1 Kg8 29. Rd4 Qc6 30. Rd6 Qe8 31. e6 Rh5 32. Rgd1 1-0

[Event "corr"]
[Site "corr"]
[Date "1965.??.??"]
[Round "?"]
[White "Bannik, Anatoly"]
[Black "Koch, Berthold"]
[Result "0-1"]
[ECO "B11"]
[PlyCount "86"]
[EventDate "1965.??.??"]
[EventType "tourn (corr)"]
[EventRounds "9"]
[SourceTitle "Corr 2000"]
[Source "ChessBase"]
[SourceDate "2000.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 c6 2. Nc3 d5 3. Nf3 Bg4 4. h3 Bxf3 5. Qxf3 Nf6 6. exd5 cxd5 7. g3 Nc6 8. Bg2 e6 9. d3 Nd4 10. Qd1 Rc8 11. 0-0 Bd6 12. Be3 Nf5 13. Bd2 Qb6 14. a4 a5 15. g4 Nh4 16. Bh1 Bb8 17. Nb5 h5 18. g5 Nd7 19. Rc1 Ne5 20. c4 Nxd3 21. Be3 Nf4 22. Re1 Qd8 23. cxd5 Rxc1 24. Bxc1 Qxg5+ 25. Kf1 Qf5 26. Bxf4 Qxh3+ 27. Ke2 Bxf4 28. dxe6 fxe6 29. Bxb7 0-0 30. Qd4 Qg4+ 31. f3 Qg5 32. Rg1 Nf5 33. Qb6 Ng3+ 34. Kf2 Rd8 35. Qxe6+ Kh8 36. Nc3 Qc5+ 37. Kg2 Rd2+ 38. Kh3 Qxg1 39. Qe8+ Kh7 40. Be4+ Nxe4 41. Qxe4+ Qg6 42. Qxf4 Qg2+ 43. Kh4 g5+ 0-1

[Event "olm5 fin B2 corr6568"]
[Site "ICCF corr"]
[Date "1965.??.??"]
[Round "?"]
[White "Boysan, Mubin"]
[Black "Koch, Berthold"]
[Result "1/2-1/2"]
[ECO "D04"]
[PlyCount "111"]
[EventDate "1965.??.??"]
[EventType "team (corr)"]
[EventRounds "8"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. Nbd2 d5 4. e3 Bg7 5. Bd3 c5 6. c3 Nbd7 7. 0-0 0-0 8. Re1 Qc7 9. e4 dxe4 10. Nxe4 Nxe4 11. Bxe4 Nf6 12. Bc2 Bg4 13. dxc5 Qxc5 14. Qd4 Qa5 15. Ne5 Be6 16. Qh4 Nh5 17. f4 Qb6+ 18. Qf2 Qxf2+ 19. Kxf2 Bf6 20. Be4 g5 21. Nd3 h6 22. fxg5 hxg5 23. Bxb7 Rab8 24. Be4 Bc4 25. g3 Bg7 26. Nb4 e6 27. Bf3 Nf6 28. Nc6 Rb6 29. Ne5 Bd5 30. Re2 Rfb8 31. c4 g4 32. Bg2 Bxg2 33. Kxg2 Ne8 34. b3 Bxe5 35. Rxe5 f6 36. Re2 Ra6 37. Bb2 Kf7 38. Bc3 Rd8 39. Be1 f5 40. Rc1 Nf6 41. Bf2 Ne4 42. c5 e5 43. Be1 Ke6 44. a4 Rc8 45. Rec2 Kd5 46. Rd1+ Ke6 47. a5 Rxc5 48. Rxc5 Nxc5 49. b4 Nb3 50. Rb1 Nd4 51. b5 Rd6 52. Bf2 Kd5 53. b6 axb6 54. axb6 Rd8 55. b7 Rb8 56. Bxd4 1/2-1/2

[Event "olm5 fin B2 corr6568"]
[Site "ICCF corr"]
[Date "1965.??.??"]
[Round "?"]
[White "Carr, JW."]
[Black "Koch, Berthold"]
[Result "1/2-1/2"]
[ECO "D78"]
[PlyCount "71"]
[EventDate "1965.??.??"]
[EventType "team (corr)"]
[EventRounds "8"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. c4 Nf6 2. Nf3 g6 3. b3 Bg7 4. Bb2 0-0 5. g3 c6 6. Bg2 d5 7. 0-0 Nbd7 8. d4 Ne4 9. cxd5 cxd5 10. Nc3 Ndf6 11. Ne5 Nxc3 12. Bxc3 Bf5 13. Bb4 Re8 14. e3 Qb6 15. Bc5 Qe6 16. Nd3 Ne4 17. Re1 b6 18. Ba3 Rac8 19. f3 Nc3 20. Qd2 g5 21. Bb2 Nb5 22. Rac1 a5 23. Nf2 Rxc1 24. Rxc1 Rc8 25. Bf1 Nd6 26. Ba3 h6 27. Rxc8+ Nxc8 28. Bd3 Bxd3 29. Qxd3 f5 30. f4 Bf6 31. Nd1 Qd7 32. Nc3 Na7 33. Kf2 e6 34. Ke2 g4 35. Qa6 Bd8 36. Kd2 1/2-1/2

[Event "olm5 fin B2 corr6568"]
[Site "ICCF corr"]
[Date "1965.??.??"]
[Round "?"]
[White "Engel, Klaus Eberhard"]
[Black "Koch, Berthold"]
[Result "1-0"]
[ECO "A70"]
[PlyCount "55"]
[EventDate "1965.??.??"]
[EventType "team (corr)"]
[EventRounds "8"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 g6 6. e4 d6 7. Nf3 a6 8. a4 Bg7 9. Nd2 0-0 10. Be2 Ne8 11. 0-0 f5 12. exf5 Bxf5 13. Nc4 h5 14. Ne3 Bxc3 15. Nxf5 Be5 16. f4 Bg7 17. Nxg7 Nxg7 18. Qb3 Qc7 19. Bd2 Nf5 20. Rae1 Nd7 21. Bd3 Qb6 22. Qc4 Rae8 23. Bxf5 gxf5 24. Bc3 Nf6 25. Bxf6 Rxe1 26. Rxe1 Rxf6 27. Qe2 Qb4 28. Qe8+ 1-0

[Event "olm5 fin B2 corr6568"]
[Site "ICCF corr"]
[Date "1965.??.??"]
[Round "?"]
[White "Feuerstein, Arthur William"]
[Black "Koch, Berthold"]
[Result "1/2-1/2"]
[ECO "A61"]
[PlyCount "111"]
[EventDate "1965.??.??"]
[EventType "team (corr)"]
[EventRounds "8"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. Nf3 g6 7. Bf4 a6 8. a4 Bg7 9. h3 0-0 10. e3 Qe7 11. Nd2 Nbd7 12. Be2 Ne5 13. Bg3 Ne8 14. Qc2 f5 15. f4 Nd7 16. e4 fxe4 17. 0-0 Ndf6 18. Bh4 Qf7 19. Nc4 Bd7 20. Kh1 Rb8 21. Nb6 Kh8 22. Rae1 Rd8 23. Bc4 h5 24. Nxe4 Bf5 25. Bd3 Nxe4 26. Bxe4 Bxe4 27. Rxe4 Nf6 28. Bxf6 Qxf6 29. Re6 Qf5 30. Qe2 h4 31. b3 g5 32. Qh5+ Kg8 33. Rg6 gxf4 34. Qh6 Rf7 35. Rg5 Qf6 36. Qxh4 Re8 37. Qg4 Qc3 38. Nc4 Re1 39. Rxe1 Qxe1+ 40. Kh2 f3 41. gxf3 Re7 42. Qg1 Qc3 43. Qg2 Qf6 44. Qg4 b5 45. axb5 axb5 46. Rg6 Re2+ 47. Kg3 Qa1 48. Rxg7+ Qxg7 49. Nxd6 Qxg4+ 50. hxg4 Re3 51. Nxb5 Rxb3 52. Nd6 Rd3 53. Kf4 Rxd5 54. Ne4 Kg7 55. Ke3 c4 56. f4 1/2-1/2

[Event "olm5 fin B2 corr6568"]
[Site "ICCF corr"]
[Date "1965.??.??"]
[Round "?"]
[White "Koch, Berthold"]
[Black "Hunter, Charles Stanley"]
[Result "0-1"]
[ECO "C28"]
[PlyCount "80"]
[EventDate "1965.??.??"]
[EventType "team (corr)"]
[EventRounds "8"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 e5 2. Bc4 Nf6 3. d3 Nc6 4. Nc3 Na5 5. Nge2 Nxc4 6. dxc4 Bc5 7. 0-0 d6 8. Bg5 Be6 9. Qd3 h6 10. Bxf6 Qxf6 11. Nd5 Bxd5 12. cxd5 0-0 13. Rad1 Qg5 14. Kh1 Rae8 15. g4 h5 16. gxh5 f5 17. f4 exf4 18. Nxf4 fxe4 19. Qg3 Qxg3 20. hxg3 Rf5 21. Rde1 c6 22. c4 cxd5 23. cxd5 e3 24. Kg2 Bb4 25. Re2 Bd2 26. g4 Rfe5 27. Kg3 Rf8 28. Rf3 Kh7 29. a3 b5 30. Rf1 Re4 31. Rf3 Rd4 32. Rf1 a5 33. Rf3 Rf7 34. Rf1 b4 35. a4 b3 36. Rf3 Rxa4 37. Ng2 Rxf3+ 38. Kxf3 Rd4 39. Nxe3 Rd3 40. g5 a4 0-1

[Event "olm5 fin B2 corr6568"]
[Site "ICCF corr"]
[Date "1965.??.??"]
[Round "?"]
[White "Koch, Berthold"]
[Black "Simagin, Vladimir Pavlovich"]
[Result "1-0"]
[ECO "B84"]
[PlyCount "123"]
[EventDate "1965.??.??"]
[EventType "team (corr)"]
[EventRounds "8"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[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 Nbd7 8. a4 b6 9. f4 Bb7 10. Bf3 Qc7 11. Kh1 h5 12. Qe2 Ng4 13. Be3 Be7 14. Bg1 Ndf6 15. Rae1 Rd8 16. e5 dxe5 17. fxe5 Nh7 18. Ndb5 Qb8 19. Bxb6 Bxf3 20. Qxf3 Qxb6 21. a5 Qc5 22. Qxf7+ Kd7 23. Na4 Qxb5 24. Nb6+ Kc6 25. Qxe7 Rhe8 26. Qa3 Ng5 27. h4 Ne4 28. Qf3 Qxe5 29. Qxe4+ Qxe4 30. Rxe4 e5 31. Nc4 Kd5 32. Nd2 Nf6 33. Re2 e4 34. Rf4 Rc8 35. c3 Re5 36. g3 Rce8 37. Kg2 Kc6 38. Nc4 Rc5 39. Ne3 Rxa5 40. Nf5 Ng4 41. Nxg7 Rg8 42. Ne6 e3 43. Nd4+ Kb6 44. b4 Ra3 45. c4 Rd8 46. c5+ Kb7 47. Rf7+ Kc8 48. Ne6 Re8 49. Nf4 Re5 50. Rg7 Nf6 51. Rg5 Re8 52. Kf3 Ne4 53. Rxh5 Nd2+ 54. Kg2 Ne4 55. Nd5 Rd3 56. Rxe3 Rd2+ 57. Kf1 Rd1+ 58. Ke2 Rd2+ 59. Ke1 Ra2 60. Rh7 Ra1+ 61. Ke2 Ra2+ 62. Kd3 1-0

[Event "olm5 fin B2 corr6568"]
[Site "ICCF corr"]
[Date "1965.??.??"]
[Round "?"]
[White "Koch, Berthold"]
[Black "Smith, Olle"]
[Result "1/2-1/2"]
[ECO "B55"]
[PlyCount "48"]
[EventDate "1965.??.??"]
[EventType "team (corr)"]
[EventRounds "8"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. f3 e5 6. Bb5+ Nbd7 7. Nf5 d5 8. exd5 a6 9. Bxd7+ Qxd7 10. Ne3 b5 11. a4 Bb7 12. axb5 axb5 13. Rxa8+ Bxa8 14. c4 bxc4 15. Nxc4 Bb4+ 16. Bd2 Bxd2+ 17. Qxd2 0-0 18. 0-0 e4 19. d6 exf3 20. Nc3 Re8 21. gxf3 Bxf3 22. Rxf3 Qg4+ 23. Rg3 Qxc4 24. Rxg7+ Kxg7 1/2-1/2

[Event "olm5 fin B2 corr6568"]
[Site "ICCF corr"]
[Date "1965.??.??"]
[Round "?"]
[White "Koch, Berthold"]
[Black "Smrcka, Frantisek"]
[Result "1-0"]
[ECO "C28"]
[PlyCount "77"]
[EventDate "1965.??.??"]
[EventType "team (corr)"]
[EventRounds "8"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 e5 2. Bc4 Nf6 3. d3 Nc6 4. Nc3 Bb4 5. Nge2 d5 6. exd5 Nxd5 7. Bxd5 Qxd5 8. 0-0 Qd8 9. f4 exf4 10. Bxf4 0-0 11. Qe1 Bd6 12. Qg3 Bxf4 13. Rxf4 Be6 14. Raf1 Qe7 15. Ne4 Rad8 16. Rh4 f6 17. c4 Ne5 18. Nf4 b6 19. b4 Rd7 20. b5 Qe8 21. Re1 Bf5 22. d4 Bxe4 23. Rxe4 Qf7 24. dxe5 fxe5 25. Rxe5 Rd4 26. Rg5 g6 27. Rgg4 Rd1+ 28. Kf2 Qe6 29. Qc3 Qd6 30. c5 bxc5 31. g3 Rf5 32. Kg2 Qd2+ 33. Qxd2 Rxd2+ 34. Kh3 c4 35. Ne6 Rff2 36. Rf4 Rxh2+ 37. Kg4 Rhf2 38. Rxc4 Rd5 39. Kh3 1-0

[Event "DDR-ch3 corr6265"]
[Site "DDR"]
[Date "1964.??.??"]
[Round "?"]
[White "August, Adi"]
[Black "Koch, Berthold"]
[Result "1/2-1/2"]
[ECO "B17"]
[PlyCount "67"]
[EventDate "1962.??.??"]
[EventType "tourn (corr)"]
[EventRounds "13"]
[EventCountry "DDR"]
[SourceTitle "Corr 2004"]
[Source "ChessBase"]
[SourceDate "2003.04.28"]
[SourceVersion "3"]
[SourceVersionDate "2003.04.28"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nd7 5. Nf3 Ngf6 6. Nxf6+ Nxf6 7. Bc4 g6 8. Ne5 Nd5 9. 0-0 Bg7 10. c3 0-0 11. Ng4 h5 12. Ne5 Bf5 13. Qb3 Rb8 14. Bd3 Bxd3 15. Nxd3 b6 16. Ne5 Qc8 17. c4 Bxe5 18. dxe5 Nc7 19. f4 Ne6 20. Qa3 Rb7 21. f5 Ng7 22. Bh6 Kh7 23. Bxg7 Kxg7 24. fxg6 fxg6 25. Rxf8 Qxf8 26. Rf1 Qd8 27. Qf3 Qd4+ 28. Kh1 Rb8 29. Qf7+ Kh6 30. Qxe7 Qxc4 31. Qf6 Re8 32. h4 Qc2 33. Qg5+ Kg7 34. Qf6+ 1/2-1/2

[Event "DDR-ch3 corr6265"]
[Site "DDR"]
[Date "1964.??.??"]
[Round "?"]
[White "Herzel, Alois"]
[Black "Koch, Berthold"]
[Result "1/2-1/2"]
[ECO "D93"]
[PlyCount "48"]
[EventDate "1962.??.??"]
[EventType "tourn (corr)"]
[EventRounds "13"]
[EventCountry "DDR"]
[SourceTitle "Corr 2004"]
[Source "ChessBase"]
[SourceDate "2003.04.28"]
[SourceVersion "3"]
[SourceVersionDate "2003.04.28"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 c6 6. Nf3 0-0 7. Qb3 Qa5 8. Nd2 Nbd7 9. Be2 Nh5 10. Bxh5 dxc4 11. Qd1 gxh5 12. Nxc4 Qf5 13. Qf3 Qd3 14. Qe2 Qxe2+ 15. Nxe2 b6 16. 0-0 Ba6 17. Rac1 c5 18. Rfd1 Rfd8 19. f3 e5 20. dxe5 Bxc4 21. Rxc4 Nxe5 22. Rxd8+ Rxd8 23. Bxe5 Bxe5 24. Rc2 f5 1/2-1/2

[Event "DDR-ch3 corr6265"]
[Site "DDR"]
[Date "1964.??.??"]
[Round "?"]
[White "Koch, Berthold"]
[Black "Bartuszat, Fritz"]
[Result "1/2-1/2"]
[ECO "C02"]
[PlyCount "87"]
[EventDate "1962.??.??"]
[EventType "tourn (corr)"]
[EventRounds "13"]
[EventCountry "DDR"]
[SourceTitle "Myers"]
[Source "Myers"]
[SourceDate "2012.11.12"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.12"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Qb6 6. a3 c4 7. g3 Bd7 8. Nbd2 Na5 9. Bh3 Be7 10. 0-0 h5 11. Ne1 g5 12. f4 g4 13. Bg2 f5 14. exf6 Nxf6 15. Qe2 Bd6 16. Nc2 0-0-0 17. Nb4 h4 18. Rf2 hxg3 19. hxg3 Rh7 20. b3 Nxb3 21. Nxc4 Qc7 22. Nxd6+ Qxd6 23. Rb1 Nxc1 24. Rxc1 Ne4 25. Qd3 Rdh8 26. Rb2 e5 27. Nxd5 exf4 28. Nxf4 Bf5 29. Bxe4 Rh1+ 30. Kf2 Bxe4 31. Rxh1 Bxh1 32. Qf5+ Kb8 33. Re2 Bf3 34. Re6 Qc7 35. c4 Rc8 36. c5 Qd7 37. Qe5+ Ka8 38. Rh6 a6 39. Rh8 Rxh8 40. Qxh8+ Ka7 41. Qf6 Qb5 42. Ke3 Qf1 43. Qb6+ Ka8 44. Qd8+ 1/2-1/2

[Event "DDR-ch3 corr6265"]
[Site "DDR"]
[Date "1964.??.??"]
[Round "?"]
[White "Koch, Berthold"]
[Black "Broberg, Horst"]
[Result "1-0"]
[ECO "C02"]
[PlyCount "125"]
[EventDate "1962.??.??"]
[EventType "tourn (corr)"]
[EventRounds "13"]
[EventCountry "DDR"]
[SourceTitle "Corr 2004"]
[Source "ChessBase"]
[SourceDate "2003.04.28"]
[SourceVersion "3"]
[SourceVersionDate "2003.04.28"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Qb6 6. a3 a5 7. Bd3 Bd7 8. Bc2 Nge7 9. 0-0 Nf5 10. dxc5 Bxc5 11. Nbd2 a4 12. Rb1 Qc7 13. b4 Be7 14. c4 dxc4 15. Bxf5 exf5 16. Nxc4 0-0 17. Be3 Be6 18. Rc1 b5 19. Nb6 Ra6 20. Qc2 Rxb6 21. Bxb6 Qxb6 22. Qxc6 Qxc6 23. Rxc6 Rd8 24. Rc7 Kf8 25. Rfc1 g5 26. g3 g4 27. Ne1 Bg5 28. Rb1 Rd2 29. Rc2 Rd7 30. h4 Bh6 31. Rc3 f4 32. Ng2 fxg3 33. Rxg3 Rd2 34. Rc3 Ra2 35. Rd1 Bc4 36. Ne3 Bxe3 37. Rxe3 Bb3 38. Rd8+ Ke7 39. Rb8 Bc4 40. Rb7+ Ke6 41. Rb6+ Ke7 42. h5 Bb3 43. Rc3 Rxa3 44. Rc7+ Kd8 45. Ra7 Ra1+ 46. Kh2 Kc8 47. Rxb5 a3 48. Rc5+ Kb8 49. Rca5 a2 50. Kg3 Be6 51. h6 Rh1 52. Rxa2 Rxh6 53. R2a3 Rh1 54. R7a5 h5 55. Rb5+ Kc7 56. Rc3+ Kd7 57. Rb7+ Kd8 58. Rb8+ Kd7 59. Rbc8 Ke7 60. R3c7+ Bd7 61. Rh8 Rh3+ 62. Kg2 h4 63. Rh6 1-0

[Event "ENG-FRG corr"]
[Site "England"]
[Date "1964.??.??"]
[Round "?"]
[White "Koch, Berthold"]
[Black "Cairncross, James"]
[Result "1-0"]
[ECO "C02"]
[PlyCount "45"]
[EventDate "1964.??.??"]
[EventType "tourn (corr)"]
[EventRounds "2"]
[EventCountry "ENG"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Qb6 6. Be2 Nge7 7. Na3 cxd4 8. cxd4 Nf5 9. Nc2 Be7 10. 0-0 h5 11. Bd3 Nb4 12. Nxb4 Bxb4 13. Bxf5 exf5 14. Bg5 Bd7 15. a3 Be7 16. Bxe7 Kxe7 17. Qd2 g6 18. Qg5+ Kf8 19. Rac1 Kg7 20. Rc5 Qe6 21. Qf4 b6 22. Ng5 Qe8 23. e6 1-0

[Event "DDR-ch3 corr6265"]
[Site "DDR"]
[Date "1964.??.??"]
[Round "?"]
[White "Koch, Berthold"]
[Black "Krajkowski, H."]
[Result "1-0"]
[ECO "C24"]
[PlyCount "69"]
[EventDate "1962.??.??"]
[EventType "tourn (corr)"]
[EventRounds "13"]
[EventCountry "DDR"]
[SourceTitle "Corr 2004"]
[Source "ChessBase"]
[SourceDate "2003.04.28"]
[SourceVersion "3"]
[SourceVersionDate "2003.04.28"]
[SourceQuality "1"]

1. e4 e5 2. Bc4 Nf6 3. d3 c6 4. Nf3 d5 5. Bb3 Bd6 6. Nc3 Be6 7. Bg5 Qa5 8. 0-0 Nbd7 9. Re1 0-0-0 10. exd5 cxd5 11. Qd2 Kb8 12. Bxf6 gxf6 13. Nxd5 Qa6 14. Ne3 Nc5 15. Bxe6 fxe6 16. Qe2 Bc7 17. Nc4 Rhg8 18. a4 Qc6 19. a5 Rg4 20. b4 Rdg8 21. bxc5 e4 22. dxe4 Bxh2+ 23. Nxh2 Rxg2+ 24. Kh1 Qc7 25. Qh5 Qf4 26. Rab1 R8g6 27. a6 Rxh2+ 28. Qxh2 Rh6 29. Rxb7+ Ka8 30. Qxh6 Qxh6+ 31. Kg1 Qg5+ 32. Kf1 Qxc5 33. Reb1 Qxc4+ 34. Kg1 Qc8 35. Rg7 1-0

[Event "DDR-ch3 corr6265"]
[Site "DDR"]
[Date "1964.??.??"]
[Round "?"]
[White "Koch, Berthold"]
[Black "Mohaupt, Hermann"]
[Result "1-0"]
[ECO "C24"]
[PlyCount "79"]
[EventDate "1962.??.??"]
[EventType "tourn (corr)"]
[EventRounds "13"]
[EventCountry "DDR"]
[SourceTitle "Corr 2004"]
[Source "ChessBase"]
[SourceDate "2003.04.28"]
[SourceVersion "3"]
[SourceVersionDate "2003.04.28"]
[SourceQuality "1"]

1. e4 e5 2. Bc4 Nf6 3. d3 c6 4. Nf3 d5 5. Bb3 Bd6 6. Nc3 Be6 7. Bg5 Qa5 8. 0-0 Nbd7 9. Re1 0-0-0 10. exd5 cxd5 11. Qd2 Bb4 12. a3 Bxc3 13. Qxc3+ Qxc3 14. bxc3 h6 15. Bh4 g5 16. Bg3 e4 17. Nd4 a6 18. c4 dxc4 19. Nxe6 fxe6 20. Bxc4 e5 21. Be6 Rhe8 22. Bf5 b6 23. Bxe4 Nxe4 24. Rxe4 Kb7 25. f3 Rc8 26. Re2 Rc3 27. d4 Rec8 28. dxe5 Rxc2 29. Rxc2 Rxc2 30. e6 Nf6 31. Re1 Ne8 32. e7 Rc6 33. h4 b5 34. hxg5 hxg5 35. Re5 Rg6 36. Be1 Kc6 37. Bb4 Kd7 38. Kf2 Nf6 39. Bd2 g4 40. f4 1-0

[Event "DDR-ch3 corr6265"]
[Site "DDR"]
[Date "1964.??.??"]
[Round "?"]
[White "Koch, Berthold"]
[Black "Mueller, M."]
[Result "1-0"]
[ECO "C24"]
[PlyCount "49"]
[EventDate "1962.??.??"]
[EventType "tourn (corr)"]
[EventRounds "13"]
[EventCountry "DDR"]
[SourceTitle "Corr 2004"]
[Source "ChessBase"]
[SourceDate "2003.04.28"]
[SourceVersion "3"]
[SourceVersionDate "2003.04.28"]
[SourceQuality "1"]

1. e4 e5 2. Bc4 Nf6 3. d3 c6 4. Nf3 d5 5. Bb3 Bd6 6. Nc3 Be6 7. Bg5 Qa5 8. 0-0 Nbd7 9. Re1 0-0-0 10. exd5 cxd5 11. Qd2 Bc7 12. Bxf6 gxf6 13. Bxd5 Bxd5 14. b4 Qxb4 15. Nxd5 Qxd2 16. Nxd2 Ba5 17. Re2 Bxd2 18. Rxd2 Rhe8 19. f4 Re6 20. Rf1 e4 21. dxe4 Rxe4 22. Nc3 Rb4 23. a3 Rb6 24. Rfd1 f5 25. a4 1-0

[Event "corr"]
[Site "corr"]
[Date "1964.??.??"]
[Round "?"]
[White "Koch, Berthold"]
[Black "Schlund, Volker"]
[Result "1-0"]
[ECO "D55"]
[PlyCount "63"]
[EventDate "1964.??.??"]
[EventType "tourn (corr)"]
[EventRounds "9"]
[SourceTitle "Corr 2000"]
[Source "ChessBase"]
[SourceDate "2000.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. d4 c6 2. c4 b6 3. Nf3 e6 4. Nc3 Nf6 5. Bg5 Be7 6. e3 d5 7. Rc1 Nbd7 8. cxd5 exd5 9. Bd3 Bb7 10. 0-0 0-0 11. Qe2 a5 12. Rfd1 b5 13. Nd2 a4 14. Qf3 Qb6 15. Qh3 g6 16. Nf3 Bd6 17. Ne5 Bc8 18. Qh4 Bxe5 19. dxe5 Nh5 20. g4 Nxe5 21. Be2 Ng7 22. Be7 Re8 23. Rxd5 Nxg4 24. Bxg4 Bxg4 25. Ne4 Bh5 26. Nf6+ Kh8 27. Rxh5 Nxh5 28. Nxh5 c5 29. Bf6+ Kg8 30. Qg5 Re4 31. f3 Kf8 32. fxe4 1-0

[Event "DDR-ch3 corr6265"]
[Site "DDR"]
[Date "1964.??.??"]
[Round "?"]
[White "Koch, Berthold"]
[Black "Schwertfeger, Detlev"]
[Result "1/2-1/2"]
[ECO "C02"]
[PlyCount "100"]
[EventDate "1962.??.??"]
[EventType "tourn (corr)"]
[EventRounds "13"]
[EventCountry "DDR"]
[SourceTitle "Myers"]
[Source "Myers"]
[SourceDate "2012.11.12"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.12"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Qb6 6. a3 a5 7. Bd3 Bd7 8. Bc2 Nge7 9. 0-0 cxd4 10. cxd4 Nf5 11. Bxf5 exf5 12. Nc3 Be6 13. Qa4 Rc8 14. Qb5 Qxb5 15. Nxb5 Be7 16. Bg5 Bf8 17. Rfc1 h6 18. Bd2 Kd7 19. Ne1 Be7 20. Nd3 b6 21. b3 g5 22. f4 f6 23. Rc3 fxe5 24. Rac1 e4 25. Rxc6 exd3 26. Rc7+ Rxc7 27. Rxc7+ Ke8 28. Rb7 Bd8 29. Nd6+ Kf8 30. Kf2 Rg8 31. g4 Be7 32. Nxf5 Bxf5 33. gxf5 Bf6 34. Rd7 Bxd4+ 35. Kf3 g4+ 36. Kg3 h5 37. Rxd5 h4+ 38. Kxh4 Bf2+ 39. Kh5 g3 40. hxg3 Rxg3 41. f6 Kf7 42. f5 Kxf6 43. Bc3+ Kf7 44. Be5 Re3 45. Bf4 Re4 46. Bg5 Rd4 47. Rxd4 Bxd4 48. Kg4 b5 49. a4 bxa4 50. bxa4 Bc3 1/2-1/2

[Event "DDR-ch3 corr6265"]
[Site "DDR"]
[Date "1964.??.??"]
[Round "?"]
[White "Kummer, Gerhard"]
[Black "Koch, Berthold"]
[Result "0-1"]
[ECO "D92"]
[PlyCount "94"]
[EventDate "1962.??.??"]
[EventType "tourn (corr)"]
[EventRounds "13"]
[EventCountry "DDR"]
[SourceTitle "Corr 2004"]
[Source "ChessBase"]
[SourceDate "2003.04.28"]
[SourceVersion "3"]
[SourceVersionDate "2003.04.28"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Bf4 0-0 6. Rc1 dxc4 7. e4 c5 8. dxc5 Qxd1+ 9. Rxd1 Bg4 10. Bxc4 Nbd7 11. Be3 Rfc8 12. b4 a5 13. a3 axb4 14. axb4 Ra3 15. Nd5 Nxd5 16. Bxd5 Bc3+ 17. Bd2 Bxf3 18. gxf3 Bxd2+ 19. Kxd2 b6 20. Bb7 Rc7 21. c6 Ne5 22. b5 Ra5 23. Rb1 Nxf3+ 24. Kc3 e5 25. Rhd1 Nd4 26. Kc4 Kf8 27. f4 Ra4+ 28. Rb4 Rxb4+ 29. Kxb4 Nc2+ 30. Kc3 Ne3 31. Rd8+ Ke7 32. Rc8 Rxc8 33. Bxc8 exf4 34. Kd4 Kd8 35. Bd7 f6 36. Be6 Kc7 37. Kd3 Kd6 38. Bh3 h5 39. Ke2 g5 40. Bf1 g4 41. Kf2 h4 42. Bd3 h3 43. Kg1 Kc7 44. Bb1 Nd1 45. Bc2 Nc3 46. Bb3 f3 47. Bc4 Nxe4 0-1

[Event "corr"]
[Site "corr"]
[Date "1963.??.??"]
[Round "?"]
[White "Pedersen"]
[Black "Koch, Berthold"]
[Result "0-1"]
[ECO "B12"]
[PlyCount "54"]
[EventDate "1963.??.??"]
[EventType "tourn (corr)"]
[EventRounds "9"]
[SourceTitle "Corr 2000"]
[Source "ChessBase"]
[SourceDate "2000.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. e5 Bf5 4. Bd3 Bxd3 5. Qxd3 e6 6. f4 Qb6 7. f5 exf5 8. Qxf5 Ne7 9. Qf2 Ng6 10. Nf3 Be7 11. 0-0 0-0 12. Nc3 f6 13. Na4 Qa6 14. exf6 Rxf6 15. Nc3 Rf7 16. Qg3 Nd7 17. Bg5 Raf8 18. Rfe1 Nf6 19. Qh3 Qb6 20. Na4 Qb4 21. b3 Ne4 22. Bxe7 Qxe7 23. Re3 Nf4 24. Qh4 g5 25. Qe1 g4 26. Ne5 Nxg2 27. Kxg2 Rf2+ 0-1

[Event "DDR-ch2 corr"]
[Site "DDR"]
[Date "1961.08.10"]
[Round "?"]
[White "Bodewin, Walter E"]
[Black "Koch, Berthold"]
[Result "0-1"]
[ECO "D04"]
[PlyCount "60"]
[EventDate "1961.08.10"]
[EventType "tourn (corr)"]
[EventRounds "17"]
[EventCountry "DDR"]
[SourceTitle "Corr 2006"]
[Source "ChessBase"]
[SourceDate "2006.04.01"]
[SourceVersion "3"]
[SourceVersionDate "2006.04.01"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. b3 Bg7 4. Bb2 0-0 5. Nbd2 d5 6. e3 Bg4 7. Bd3 Nbd7 8. c4 c5 9. h3 Bxf3 10. Qxf3 Qa5 11. Qe2 cxd4 12. exd4 Bh6 13. a3 dxc4 14. bxc4 e5 15. d5 Nc5 16. Bc2 b5 17. Rd1 bxc4 18. Qxc4 Nxd5 19. 0-0 Bxd2 20. Qxd5 Bc3 21. Bc1 Rad8 22. Qa2 Kg7 23. Kh1 Qb5 24. Bg5 Rd7 25. Kg1 Bd4 26. Rb1 Qe2 27. Bb3 Qxa2 28. Bxa2 Ne4 29. Bc1 Rc8 30. Bb3 Rdc7 0-1

[Event "DDR-ch2 corr"]
[Site "DDR"]
[Date "1961.08.10"]
[Round "?"]
[White "Herzel, Alois"]
[Black "Koch, Berthold"]
[Result "1/2-1/2"]
[ECO "E42"]
[PlyCount "57"]
[EventDate "1961.08.10"]
[EventType "tourn (corr)"]
[EventRounds "17"]
[EventCountry "DDR"]
[SourceTitle "Corr 2006"]
[Source "ChessBase"]
[SourceDate "2006.04.01"]
[SourceVersion "3"]
[SourceVersionDate "2006.04.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Nge2 cxd4 6. exd4 Ne4 7. Bd2 Nxd2 8. Qxd2 b6 9. a3 Be7 10. g3 Bb7 11. d5 Na6 12. Bg2 d6 13. 0-0 e5 14. f4 exf4 15. Nxf4 0-0 16. Ne4 Nc5 17. Nh5 Nd7 18. Rae1 Ne5 19. b3 Bc8 20. h3 Kh8 21. Kh2 Bd7 22. a4 Rc8 23. Nf4 f5 24. Nc3 Bg5 25. Nce2 Qf6 26. Nd4 Bh6 27. Qd1 Bxf4 28. gxf4 Ng6 29. Qd2 1/2-1/2

[Event "DDR-ch2 corr"]
[Site "DDR"]
[Date "1961.08.10"]
[Round "?"]
[White "Koch, Berthold"]
[Black "Enigk, Guenter"]
[Result "1-0"]
[ECO "A91"]
[PlyCount "89"]
[EventDate "1961.08.10"]
[EventType "tourn (corr)"]
[EventRounds "17"]
[EventCountry "DDR"]
[SourceTitle "Corr 2006"]
[Source "ChessBase"]
[SourceDate "2006.04.01"]
[SourceVersion "3"]
[SourceVersionDate "2006.04.01"]
[SourceQuality "1"]

1. d4 f5 2. g3 Nf6 3. Bg2 e6 4. Nh3 Be7 5. 0-0 d6 6. c4 0-0 7. Nc3 c6 8. e4 e5 9. dxe5 dxe5 10. Qe2 Qc7 11. f4 fxe4 12. Nxe4 Nxe4 13. Bxe4 h6 14. Kg2 Nd7 15. Bc2 e4 16. Nf2 Nf6 17. Nxe4 Qd7 18. f5 b6 19. Bf4 Kh8 20. Rad1 Qe8 21. Rfe1 Bb7 22. Nd6 Bxd6 23. Rxd6 c5+ 24. Kh3 Bf3 25. Qxe8 Raxe8 26. Rde6 Bc6 27. g4 Kg8 28. Rxe8 Bxe8 29. Bd6 Rf7 30. Be7 Bc6 31. Re5 Kh8 32. Kg3 Ng8 33. Bd6 Rd7 34. Re6 Nf6 35. Kf4 Rd8 36. Be5 Rd2 37. Bxf6 gxf6 38. Rxf6 Kg7 39. Rg6+ Kh7 40. Rxc6 Rxc2 41. Rc7+ Kg8 42. h4 Rxc4+ 43. Kg3 h5 44. gxh5 Rd4 45. h6 1-0

[Event "DDR-ch2 corr"]
[Site "DDR"]
[Date "1961.08.10"]
[Round "?"]
[White "Koch, Berthold"]
[Black "Hauschild, Kurt"]
[Result "0-1"]
[ECO "E45"]
[PlyCount "54"]
[EventDate "1961.08.10"]
[EventType "tourn (corr)"]
[EventRounds "17"]
[EventCountry "DDR"]
[SourceTitle "Corr 2006"]
[Source "ChessBase"]
[SourceDate "2006.04.01"]
[SourceVersion "3"]
[SourceVersionDate "2006.04.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Nge2 Ba6 6. Ng3 0-0 7. e4 d5 8. e5 Ne4 9. Ngxe4 dxe4 10. a3 Bxc3+ 11. bxc3 Nc6 12. Qg4 f5 13. exf6 Qxf6 14. Be3 Qf5 15. Qd1 Qa5 16. Qb3 Rad8 17. 0-0-0 Qf5 18. Be2 Na5 19. Qb4 e5 20. d5 c5 21. Bxc5 bxc5 22. Qxa5 Qxf2 23. Rd2 Qe3 24. Kc2 Rb8 25. a4 Rb6 26. Ra1 Rfb8 27. Ra2 Qg1 0-1

[Event "DDR-ch2 corr"]
[Site "DDR"]
[Date "1961.08.10"]
[Round "?"]
[White "Koch, Berthold"]
[Black "Heinrich, Dieter"]
[Result "1-0"]
[ECO "D22"]
[PlyCount "61"]
[EventDate "1961.08.10"]
[EventType "tourn (corr)"]
[EventRounds "17"]
[EventCountry "DDR"]
[SourceTitle "Corr 2006"]
[Source "ChessBase"]
[SourceDate "2006.04.01"]
[SourceVersion "3"]
[SourceVersionDate "2006.04.01"]
[SourceQuality "1"]

1. d4 d5 2. c4 dxc4 3. Nf3 a6 4. e3 Bg4 5. Bxc4 e6 6. h3 Bh5 7. Qb3 Bxf3 8. gxf3 b5 9. Be2 c5 10. dxc5 Nd7 11. c6 Nc5 12. Qc2 Rc8 13. Nc3 Rxc6 14. Nxb5 axb5 15. b4 Qb6 16. bxc5 Bxc5 17. Qb2 Kf8 18. Bxb5 Rd6 19. Rg1 Nf6 20. Rb1 Ke7 21. Be2 g6 22. Qxb6 Rxb6 23. Rxb6 Bxb6 24. Ba3+ Kd7 25. Bb5+ Kc8 26. Bb2 Bd8 27. Ke2 Be7 28. Be5 Kb7 29. Rc1 Kb6 30. a4 Ra8 31. Rc6+ 1-0

[Event "DDR-ch2 corr"]
[Site "DDR"]
[Date "1961.08.10"]
[Round "?"]
[White "Koch, Berthold"]
[Black "Keller, Peter"]
[Result "1-0"]
[ECO "E70"]
[PlyCount "41"]
[EventDate "1961.08.10"]
[EventType "tourn (corr)"]
[EventRounds "17"]
[EventCountry "DDR"]
[SourceTitle "Corr 2006"]
[Source "ChessBase"]
[SourceDate "2006.04.01"]
[SourceVersion "3"]
[SourceVersionDate "2006.04.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Bg5 c5 6. d5 0-0 7. Bd3 Na6 8. f4 Nc7 9. Nf3 Bg4 10. 0-0 a6 11. Qe1 Bxf3 12. Rxf3 h6 13. Bh4 b5 14. Rd1 bxc4 15. Bxc4 Nh7 16. e5 g5 17. fxg5 hxg5 18. Bd3 gxh4 19. Bxh7+ Kxh7 20. Qxh4+ Kg8 21. Rh3 1-0

[Event "DDR-ch2 corr"]
[Site "DDR"]
[Date "1961.08.10"]
[Round "?"]
[White "Lange, Hans Lothar"]
[Black "Koch, Berthold"]
[Result "0-1"]
[ECO "B17"]
[PlyCount "64"]
[EventDate "1961.08.10"]
[EventType "tourn (corr)"]
[EventRounds "17"]
[EventCountry "DDR"]
[SourceTitle "Corr 2012"]
[Source "ChessBase"]
[SourceDate "2012.11.12"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.12"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Nd7 5. Nf3 Ngf6 6. Ng3 e6 7. Bd3 Be7 8. 0-0 c5 9. Re1 b6 10. c4 cxd4 11. Nxd4 Bb7 12. a3 0-0 13. b3 Re8 14. Bb2 Nf8 15. Re2 a6 16. Rd2 Qc7 17. Nf3 Rac8 18. Qe2 Ng6 19. Ne4 Nh5 20. Qe3 e5 21. Nc3 Bc5 22. Qg5 Bxf3 23. Bxg6 hxg6 24. gxf3 Nf4 25. Qg3 Bd4 26. Ne2 Bxb2 27. Rxb2 Rcd8 28. Kf1 Rd3 29. Rab1 Nh5 30. Qg4 Qd6 31. a4 f5 32. Qh3 e4 0-1

[Event "DDR-ch2 corr"]
[Site "DDR"]
[Date "1961.08.10"]
[Round "?"]
[White "Schlosser, Wolfgang"]
[Black "Koch, Berthold"]
[Result "0-1"]
[ECO "B17"]
[PlyCount "54"]
[EventDate "1961.08.10"]
[EventType "tourn (corr)"]
[EventRounds "17"]
[EventCountry "DDR"]
[SourceTitle "Corr 2012"]
[Source "ChessBase"]
[SourceDate "2012.11.12"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.12"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nd7 5. Bc4 Ngf6 6. Ng5 Nd5 7. Bb3 N7f6 8. Qd3 g6 9. f3 Bg7 10. Ne2 0-0 11. 0-0 Qb6 12. Kh1 Bf5 13. Ne4 Nb4 14. Qe3 a5 15. a3 Nbd5 16. Qd3 a4 17. Ba2 Nd7 18. g4 Bxe4 19. fxe4 Nc7 20. Be3 Rad8 21. g5 c5 22. dxc5 Qxb2 23. Bd5 Ne5 24. Qd1 Nxd5 25. exd5 Nc4 26. Qd3 Nxe3 27. Qxe3 Rxd5 0-1

[Event "olm4 fin B2 corr"]
[Site "ICCF corr"]
[Date "1961.??.??"]
[Round "?"]
[White "Arnlind, Eric Alfons"]
[Black "Koch, Berthold"]
[Result "1-0"]
[ECO "B14"]
[PlyCount "63"]
[EventDate "1961.??.??"]
[EventType "team (corr)"]
[EventRounds "9"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 e6 6. c5 Be7 7. Bb5+ Bd7 8. Bxd7+ Nfxd7 9. Bf4 Nc6 10. Nf3 g5 11. Be3 g4 12. Nd2 Nxc5 13. 0-0 Nd7 14. Qxg4 h5 15. Qe2 Qb6 16. Rab1 Bf6 17. Nf3 a6 18. b4 Ne7 19. Rfc1 Rc8 20. a3 Qd6 21. Na4 Nb6 22. Nc5 Qb8 23. g3 Ng6 24. Bg5 Ke7 25. Qe3 Rcg8 26. Re1 Qc8 27. Bxf6+ Kxf6 28. Qg5+ Kg7 29. Nh4 Rh6 30. Nxe6+ fxe6 31. Nf5+ exf5 32. Re7+ 1-0

[Event "olm4 fin B2 corr"]
[Site "ICCF corr"]
[Date "1961.??.??"]
[Round "?"]
[White "Dubinin, Piotr Vasilyevich"]
[Black "Koch, Berthold"]
[Result "1/2-1/2"]
[ECO "B11"]
[PlyCount "47"]
[EventDate "1961.??.??"]
[EventType "team (corr)"]
[EventRounds "9"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 c6 2. Nc3 d5 3. Nf3 Bg4 4. h3 Bxf3 5. Qxf3 Nf6 6. d3 e6 7. a3 Nbd7 8. g4 g6 9. Qg3 d4 10. Nb1 Bg7 11. Nd2 Qa5 12. Be2 h5 13. b4 Qa4 14. g5 h4 15. Qc7 Nh5 16. Nc4 c5 17. Bxh5 gxh5 18. Nd6+ Ke7 19. Nxb7 Qxc2 20. Bf4 Qc3+ 21. Ke2 Qc2+ 22. Ke1 Qc3+ 23. Ke2 Qc2+ 24. Ke1 1/2-1/2

[Event "olm4 fin B2 corr"]
[Site "ICCF corr"]
[Date "1961.??.??"]
[Round "?"]
[White "Koch, Berthold"]
[Black "Haag, Ervin"]
[Result "1-0"]
[ECO "A43"]
[PlyCount "75"]
[EventDate "1961.??.??"]
[EventType "team (corr)"]
[EventRounds "9"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. d4 c5 2. d5 d6 3. e4 g6 4. Nc3 Bg7 5. Nf3 Bxc3+ 6. bxc3 Nf6 7. Nd2 e5 8. Bd3 0-0 9. 0-0 Nh5 10. a4 Qh4 11. Nc4 Rd8 12. g3 Qe7 13. f4 Nd7 14. f5 f6 15. Bh6 Nb6 16. Ne3 Bd7 17. a5 Na4 18. c4 Nb2 19. Qf3 Nxd3 20. cxd3 b5 21. cxb5 Bxb5 22. Ng2 Rd7 23. g4 Ng7 24. fxg6 hxg6 25. Nh4 Ne8 26. g5 Qh7 27. Qe3 Rf7 28. Ra2 c4 29. Rb2 a6 30. dxc4 Bxc4 31. Rff2 Bb5 32. Rg2 Rc8 33. gxf6 Rxf6 34. Rxg6+ Kf7 35. Qa7+ Rc7 36. Rxf6+ Kxf6 37. Qe3 Ke7 38. Qg5+ 1-0

[Event "DDR-ch2 corr"]
[Site "DDR"]
[Date "1961.??.??"]
[Round "?"]
[White "Koch, Berthold"]
[Black "Pietzsch, Wolfgang"]
[Result "1/2-1/2"]
[ECO "D23"]
[PlyCount "38"]
[EventDate "1961.08.10"]
[EventType "tourn (corr)"]
[EventRounds "17"]
[EventCountry "DDR"]
[SourceTitle "Corr 2006"]
[Source "ChessBase"]
[SourceDate "2006.04.01"]
[SourceVersion "3"]
[SourceVersionDate "2006.04.01"]
[SourceQuality "1"]

1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. Qa4+ Nc6 5. Nc3 Bg4 6. Ne5 Bd7 7. Qxc4 e6 8. Nxd7 Qxd7 9. e3 e5 10. dxe5 Nxe5 11. Qb5 Qxb5 12. Bxb5+ c6 13. Be2 0-0-0 14. Bd2 Bb4 15. a3 Ba5 16. f3 Nd3+ 17. Bxd3 Rxd3 18. Ke2 Rhd8 19. Rhd1 b5 1/2-1/2

[Event "W-ch4 sf corr"]
[Site "ICCF corr"]
[Date "1960.??.??"]
[Round "?"]
[White "Prechtel, Helmut"]
[Black "Koch, Berthold"]
[Result "0-1"]
[ECO "C18"]
[PlyCount "102"]
[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. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 Ne7 7. h4 Nbc6 8. Nf3 Bd7 9. h5 h6 10. Bd3 Qc7 11. Bd2 0-0-0 12. Qc1 g5 13. hxg6 fxg6 14. Qb2 g5 15. 0-0-0 c4 16. Be2 Rdg8 17. g3 Qd8 18. Rh2 Qf8 19. Rdh1 Kb8 20. Ne1 Nc8 21. Kb1 Nb6 22. Ka2 Na4 23. Qb1 Qd8 24. Ng2 Qa5 25. Qe1 a6 26. Bg4 Na7 27. Qb1 Nb5 28. Qb4 Qd8 29. Ka1 a5 30. Qb1 Qf8 31. Qc1 Nbxc3 32. Bxc3 Nxc3 33. Ne3 Rg7 34. Rf1 Nb5 35. c3 Qxa3+ 36. Qxa3 Nxa3 37. Rfh1 b5 38. Rxh6 Re8 39. Rh7 Rxh7 40. Rxh7 Bc8 41. f4 gxf4 42. gxf4 b4 43. f5 exf5 44. Bxf5 Bxf5 45. Nxf5 Rg8 46. cxb4 axb4 47. Rh2 Nb5 48. Rb2 b3 49. Ne7 Rg1+ 50. Rb1 Rxb1+ 51. Kxb1 c3 0-1

[Event "W-ch4 sf corr"]
[Site "ICCF corr"]
[Date "1960.??.??"]
[Round "?"]
[White "Roos, Michel"]
[Black "Koch, Berthold"]
[Result "1-0"]
[ECO "A34"]
[PlyCount "91"]
[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. c4 Nf6 2. Nc3 c5 3. g3 d5 4. cxd5 Nxd5 5. Bg2 Nc7 6. d3 e5 7. Be3 Nba6 8. Nf3 f6 9. Nd2 Be7 10. Rc1 Rb8 11. 0-0 0-0 12. a3 b6 13. f4 exf4 14. gxf4 Bb7 15. Qb3+ Kh8 16. Bxb7 Rxb7 17. Nf3 Re8 18. Bf2 Qd7 19. Kh1 Ne6 20. e3 Nac7 21. Rcd1 Qc6 22. Bg3 Rd8 23. Kg1 Nd5 24. Nxd5 Rxd5 25. Qc3 Nd8 26. e4 Rdd7 27. Rfe1 Bd6 28. Kf2 Re7 29. d4 cxd4 30. Qxc6 Nxc6 31. e5 fxe5 32. fxe5 Bb8 33. Nxd4 Nxd4 34. Rxd4 h6 35. Rd8+ Kh7 36. Kf3 Re6 37. Rf8 b5 38. Kg4 Kg6 39. b4 a6 40. Kf3 Bc7 41. Rg1 Kh7 42. Rf7 Kg8 43. Rd7 Reb6 44. Rc1 Bb8 45. e6 Bxg3 46. e7 1-0

[Event "W-ch4 sf corr"]
[Site "ICCF corr"]
[Date "1960.??.??"]
[Round "?"]
[White "Tolush, Aleksandr Kazimirov"]
[Black "Koch, Berthold"]
[Result "1-0"]
[ECO "D86"]
[PlyCount "59"]
[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 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 0-0 8. Ne2 Nc6 9. h4 Na5 10. Bb3 b6 11. h5 Nxb3 12. axb3 c5 13. hxg6 fxg6 14. f3 Qc7 15. Be3 a5 16. Qd2 Ba6 17. Nf4 cxd4 18. cxd4 Rac8 19. Ne6 Qg3+ 20. Qf2 Qxf2+ 21. Kxf2 Rc2+ 22. Kg3 Rb8 23. Bf4 Rbc8 24. Nxg7 Kxg7 25. Rh6 Rb2 26. Be5+ Kf7 27. d5 Rxb3 28. Rxh7+ Ke8 29. d6 exd6 30. Rah1 1-0

[Event "Match/Nation CSR-DDR"]
[Site "Prague"]
[Date "1958.02.23"]
[Round "2.7"]
[White "Sefc, Jan"]
[Black "Koch, Berthold"]
[Result "1/2-1/2"]
[ECO "B85"]
[PlyCount "74"]
[EventDate "1958.02.22"]
[EventType "team-match"]
[EventRounds "2"]
[EventCountry "CSR"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 a6 7. 0-0 Qc7 8. f4 Nc6 9. Be3 Be7 10. Qe1 0-0 11. Qg3 d5 12. e5 Nxd4 13. Bxd4 Bc5 14. Qe3 Bxd4 15. Qxd4 Nd7 16. Rfe1 b5 17. a4 b4 18. Qxb4 Rb8 19. Qd4 Rxb2 20. Nxd5 Qc5 21. Qxc5 Nxc5 22. Ne7+ Kh8 23. Nxc8 Rxc8 24. Rec1 a5 25. Bb5 g6 26. Rab1 Ra2 27. Ra1 Rb2 28. c4 Rd8 29. Rd1 Rdd2 30. Rxd2 Rxd2 31. g3 Kg7 32. Ra3 h5 33. Rf3 Ra2 34. Rf2 Ra1+ 35. Rf1 Ra2 36. Rf2 Ra1+ 37. Rf1 Ra2 1/2-1/2

[Event "Match/Nation CSR-DDR"]
[Site "Prague"]
[Date "1958.02.22"]
[Round "1.7"]
[White "Koch, Berthold"]
[Black "Sefc, Jan"]
[Result "0-1"]
[ECO "C27"]
[PlyCount "52"]
[EventDate "1958.02.22"]
[EventType "team-match"]
[EventRounds "2"]
[EventCountry "CSR"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. e4 e5 2. Bc4 Nf6 3. Nc3 Nxe4 4. Qh5 Nd6 5. Bb3 Nc6 6. Nb5 g6 7. Qf3 f5 8. Qd5 Qe7 9. Nxc7+ Kd8 10. Nxa8 b6 11. Nf3 Bb7 12. d4 Nxd4 13. Bg5 Nxf3+ 14. Qxf3 Qxg5 15. Bd5 Ba6 16. Rd1 Qf4 17. Qxf4 exf4 18. Rd4 Kc8 19. Ra4 Bb7 20. Rxa7 Bxd5 21. Nxb6+ Kb8 22. Ra4 Bxg2 23. Rg1 Bc6 24. Rb4 Kc7 25. Rb3 Ne4 26. Nc4 Bd5 0-1

[Event "olm4 qual GP1 B1 corr"]
[Site "ICCF corr"]
[Date "1958.??.??"]
[Round "?"]
[White "Arvidsson, Egon"]
[Black "Koch, Berthold"]
[Result "1/2-1/2"]
[ECO "C18"]
[PlyCount "96"]
[EventDate "1958.??.??"]
[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 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 Ne7 7. Qg4 cxd4 8. cxd4 Qc7 9. Ne2 Qxc2 10. Qxg7 Rg8 11. Qh6 Nbc6 12. Qd2 Qa4 13. Bb2 Nf5 14. g3 Na5 15. Qb4 Bd7 16. Bh3 Ne7 17. 0-0 Nb3 18. Ra2 Qxb4 19. axb4 Bb5 20. Re1 Nc6 21. Ra3 Bxe2 22. Rxe2 Nbxd4 23. Rd2 Nb5 24. Rb3 a6 25. f4 Ke7 26. Bf1 Nca7 27. Kg2 Rac8 28. Bd3 h6 29. Kh3 Rc6 30. Kh4 Rb6 31. Kh5 Rh8 32. h4 Nc6 33. Rc2 Kd7 34. Rc5 Nbd4 35. Bxd4 Nxd4 36. Rbc3 Rc6 37. Rxc6 Nxc6 38. b5 axb5 39. Bxb5 Kc7 40. g4 Kb6 41. Bd3 Ka5 42. g5 hxg5+ 43. Kxg5 Kb4 44. Rc1 Rg8+ 45. Kf6 Rg4 46. Kxf7 Rxf4+ 47. Kxe6 Rxh4 48. Kd6 Rh6+ 1/2-1/2

