[Event "DDR corr"]
[Site "DDR"]
[Date "1988.??.??"]
[Round "?"]
[White "Hahn, Klaus"]
[Black "Brock, Friedemann"]
[Result "0-1"]
[ECO "B44"]
[PlyCount "62"]
[EventDate "1988.08.04"]
[EventType "tourn (corr)"]
[EventRounds "9"]
[EventCountry "DDR"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nb5 d6 6. Bf4 e5 7. Be3 Nf6 8. Bg5 Be6 9. c4 Rc8 10. Nd2 Be7 11. Bd3 a6 12. Nc3 Nxe4 13. Ndxe4 Bxg5 14. Nxg5 Qxg5 15. 0-0 0-0 16. Ne4 Qe7 17. Nxd6 Rcd8 18. c5 b6 19. Qa4 bxc5 20. Nf5 Bxf5 21. Bxf5 Nd4 22. Bg4 Qh4 23. Bd7 f5 24. Rae1 Rf7 25. Bc6 Rf6 26. Qc4+ Kh8 27. Bd5 Rh6 28. h3 Nf3+ 29. Kh1 Nxe1 30. Rxe1 Qxc4 31. Bxc4 e4 0-1

[Event "DDR corr"]
[Site "DDR"]
[Date "1988.??.??"]
[Round "?"]
[White "Hampel, Johannes"]
[Black "Hahn, Klaus"]
[Result "1-0"]
[ECO "A80"]
[PlyCount "57"]
[EventDate "1988.08.04"]
[EventType "tourn (corr)"]
[EventRounds "9"]
[EventCountry "DDR"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. d4 f5 2. Nc3 Nf6 3. Bg5 d5 4. Bxf6 exf6 5. e3 Be6 6. Bd3 c6 7. Qf3 g6 8. Nge2 Nd7 9. h3 Bf7 10. g4 fxg4 11. hxg4 Qb6 12. 0-0-0 0-0-0 13. Nf4 Be7 14. Rh6 Nf8 15. Rdh1 Rg8 16. Rxh7 Nxh7 17. Rxh7 Rd7 18. Rxf7 Ba3 19. Rxd7 Bxb2+ 20. Kd2 Bxc3+ 21. Kxc3 Kxd7 22. Kd2 Qb4+ 23. Ke2 Re8 24. Bxg6 Re7 25. Bf5+ Kc7 26. Qxd5 a5 27. Ne6+ Kb8 28. Qd8+ Ka7 29. Nc5 1-0

[Event "DDR corr"]
[Site "DDR"]
[Date "1987.??.??"]
[Round "?"]
[White "Pohlers, Juergen"]
[Black "Hahn, Klaus"]
[Result "0-1"]
[ECO "B42"]
[PlyCount "96"]
[EventDate "1987.??.??"]
[EventType "tourn (corr)"]
[EventCountry "DDR"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 Nc6 6. Be3 Nf6 7. 0-0 Ne5 8. Nd2 d5 9. h3 b5 10. f4 Nxd3 11. cxd3 dxe4 12. Nxe4 Bb7 13. Qf3 Qd5 14. f5 e5 15. Nxf6+ gxf6 16. Qxd5 Bxd5 17. Nf3 Rc8 18. Rfc1 Rxc1+ 19. Rxc1 Kd7 20. Kf2 Rg8 21. a3 Bd6 22. b4 h5 23. Bc5 Bb8 24. Rg1 Bd6 25. Bxd6 Kxd6 26. Rc1 Bc6 27. g3 Bd7 28. Nh4 Rg5 29. Kg2 Bc6+ 30. Kf2 Rg8 31. Rg1 a5 32. g4 axb4 33. axb4 hxg4 34. Rxg4 Ra8 35. Nf3 Ra3 36. Ne1 Bd7 37. Rg7 Ke7 38. h4 Bxf5 39. h5 Ra8 40. Rg1 Ra2+ 41. Kg3 Rb2 42. Rf1 Bh7 43. Ng2 Bxd3 44. Rd1 Be4 45. Ne3 Rb3 46. Kf2 Rxb4 47. h6 Rb2+ 48. Kg3 Ke6 0-1

[Event "DDR corr"]
[Site "DDR"]
[Date "1987.??.??"]
[Round "?"]
[White "Strickert, Herbert"]
[Black "Hahn, Klaus"]
[Result "0-1"]
[ECO "B43"]
[PlyCount "84"]
[EventDate "1987.??.??"]
[EventType "tourn (corr)"]
[EventCountry "DDR"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Qc7 6. Be2 b5 7. a3 Bb7 8. f4 Nc6 9. Be3 Rc8 10. Bf3 Na5 11. Qe2 Nc4 12. Nd1 Nxb2 13. 0-0 Nc4 14. a4 Nxe3 15. Nxe3 b4 16. e5 Bc5 17. Rfd1 Ne7 18. Kh1 0-0 19. Bxb7 Qxb7 20. Nc4 Qa7 21. Qe4 f5 22. Qd3 Nd5 23. Ne2 a5 24. c3 bxc3 25. Nxc3 Nxc3 26. Qxc3 Bb4 27. Qd3 Rc6 28. Na3 d5 29. exd6 Rxd6 30. Qb3 Qe7 31. Nb5 Rxd1+ 32. Rxd1 Kf7 33. Qd3 Rc8 34. h3 h6 35. Kh2 g5 36. Qf3 Kg6 37. fxg5 hxg5 38. Rd4 Qf6 39. Qe2 Rc5 40. Rc4 Re5 41. Qd3 Re1 42. Rc2 Qe5+ 0-1

[Event "Baltic Sea tt5 B06 corr8691"]
[Site "ICCF corr"]
[Date "1986.??.??"]
[Round "?"]
[White "Dauga, Zigurds"]
[Black "Hahn, Klaus"]
[Result "1/2-1/2"]
[ECO "E11"]
[PlyCount "113"]
[EventDate "1986.??.??"]
[EventType "team (corr)"]
[EventRounds "15"]
[SourceTitle "Corr 2002"]
[Source "ChessBase"]
[SourceDate "2002.05.23"]
[SourceVersion "1"]
[SourceVersionDate "2002.05.23"]
[SourceQuality "1"]

1. d4 e6 2. c4 f5 3. Nf3 Nf6 4. g3 Bb4+ 5. Bd2 Qe7 6. Bg2 0-0 7. 0-0 Bxd2 8. Qxd2 Ne4 9. Qc2 d6 10. Nc3 Nxc3 11. Qxc3 Nd7 12. Rad1 Nf6 13. b4 Ne4 14. Qb2 Bd7 15. Nd2 d5 16. c5 Nxd2 17. Rxd2 b5 18. e3 a5 19. a3 Ra6 20. Rc1 axb4 21. Qxb4 c6 22. f4 Rfa8 23. Rc3 Be8 24. Bf3 Ra4 25. Qb2 Qa7 26. Rdd3 Qa5 27. Rb3 Ra7 28. Kf2 Qd8 29. h4 h6 30. Kg2 g5 31. Qf2 Rc4 32. Rdc3 Qa5 33. Qb2 Qd8 34. Qf2 Qa8 35. Rd3 gxh4 36. gxh4 Rc1 37. Kh2 Kh7 38. Bd1 Qd8 39. Kh3 Rg7 40. Qf3 Rg4 41. Qf2 Bh5 42. Rb2 Rg7 43. Rbd2 Qa5 44. Kh2 Rxd1 45. Rxd1 Bxd1 46. Rxd1 Qxa3 47. h5 Qa7 48. Rg1 b4 49. Qe1 Rxg1 50. Qxg1 Qf7 51. Qd1 Qe7 52. Kg3 Qa7 53. Kf3 Qb7 54. Qb3 Qf7 55. Qxb4 Qxh5+ 56. Kf2 Qe8 57. Qb7+ 1/2-1/2

[Event "Baltic Sea tt5 B06 corr8691"]
[Site "ICCF corr"]
[Date "1986.??.??"]
[Round "?"]
[White "Engqvist, Thomas"]
[Black "Hahn, Klaus"]
[Result "0-1"]
[ECO "A90"]
[PlyCount "46"]
[EventDate "1986.??.??"]
[EventType "team (corr)"]
[EventRounds "15"]
[SourceTitle "Corr 2002"]
[Source "ChessBase"]
[SourceDate "2002.05.23"]
[SourceVersion "1"]
[SourceVersionDate "2002.05.23"]
[SourceQuality "1"]

1. d4 f5 2. c4 e6 3. g3 Nf6 4. Bg2 d5 5. Nf3 c6 6. 0-0 Bd6 7. b3 Nbd7 8. Ba3 Bxa3 9. Nxa3 Nf8 10. Nc2 Ng6 11. Nb4 0-0 12. Nd3 Bd7 13. Qc1 Qe7 14. Qb2 Be8 15. Nfe5 Nh8 16. f3 Nd7 17. e4 Nxe5 18. Nxe5 f4 19. exd5 exd5 20. Rfe1 Qd6 21. Qf2 Bd7 22. Re2 Rf6 23. Rae1 Raf8 0-1

[Event "Baltic Sea tt5 B06 corr8691"]
[Site "ICCF corr"]
[Date "1986.??.??"]
[Round "?"]
[White "Guldberg, Torben"]
[Black "Hahn, Klaus"]
[Result "1/2-1/2"]
[ECO "B47"]
[PlyCount "40"]
[EventDate "1986.??.??"]
[EventType "team (corr)"]
[EventRounds "15"]
[SourceTitle "Corr 2002"]
[Source "ChessBase"]
[SourceDate "2002.05.23"]
[SourceVersion "1"]
[SourceVersionDate "2002.05.23"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. Nc3 a6 4. d4 cxd4 5. Nxd4 Qc7 6. g3 Nc6 7. Bg2 Nf6 8. 0-0 Be7 9. Re1 Nxd4 10. Qxd4 Bc5 11. Qd1 d6 12. Be3 Bd7 13. Bxc5 Qxc5 14. Qd2 0-0 15. Red1 Ne8 16. Qd4 Qxd4 17. Rxd4 Bc6 18. Rad1 g6 19. g4 Rc8 20. R4d3 Rc7 1/2-1/2

[Event "Baltic Sea tt5 B06 corr8691"]
[Site "ICCF corr"]
[Date "1986.??.??"]
[Round "?"]
[White "Hahn, Klaus"]
[Black "Arpiainen, Vesa"]
[Result "1/2-1/2"]
[ECO "C50"]
[PlyCount "45"]
[EventDate "1986.??.??"]
[EventType "team (corr)"]
[EventRounds "15"]
[SourceTitle "Corr 2002"]
[Source "ChessBase"]
[SourceDate "2002.05.23"]
[SourceVersion "1"]
[SourceVersionDate "2002.05.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Bc5 5. Nc3 d6 6. h3 Be6 7. Bb3 Qd7 8. Na4 Bb6 9. Ng5 Nd4 10. Nxb6 axb6 11. Nxe6 fxe6 12. c3 Nxb3 13. Qxb3 h6 14. 0-0 0-0 15. f4 Ra5 16. Be3 Kh8 17. fxe5 Rxe5 18. Qc2 Ra5 19. Qd2 Raa8 20. a3 Nh7 21. Qe2 Rxf1+ 22. Rxf1 Rf8 23. Rxf8+ 1/2-1/2

[Event "Baltic Sea tt5 B06 corr8691"]
[Site "ICCF corr"]
[Date "1986.??.??"]
[Round "?"]
[White "Hahn, Klaus"]
[Black "Glas, Ake I"]
[Result "1-0"]
[ECO "C08"]
[PlyCount "45"]
[EventDate "1986.??.??"]
[EventType "team (corr)"]
[EventRounds "15"]
[SourceTitle "Corr 2002"]
[Source "ChessBase"]
[SourceDate "2002.05.23"]
[SourceVersion "1"]
[SourceVersionDate "2002.05.23"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 exd5 5. Bb5+ Nc6 6. Qe2+ Be7 7. dxc5 Nf6 8. Nb3 0-0 9. Nf3 Ne4 10. Be3 Re8 11. 0-0-0 Nxc5 12. Bc4 Nxb3+ 13. Bxb3 Be6 14. Qb5 a6 15. Qb6 Qxb6 16. Bxb6 Bd8 17. Be3 Ne7 18. Bc5 Ng6 19. Bd6 Be7 20. Bxe7 Nxe7 21. Nd4 Rad8 22. Rhe1 Rd6 23. Rd2 1-0

[Event "Baltic Sea tt5 B06 corr8691"]
[Site "ICCF corr"]
[Date "1986.??.??"]
[Round "?"]
[White "Hahn, Klaus"]
[Black "Karelin, Evgeny Petrovich"]
[Result "1/2-1/2"]
[ECO "B92"]
[PlyCount "94"]
[EventDate "1986.??.??"]
[EventType "team (corr)"]
[EventRounds "15"]
[SourceTitle "Corr 2002"]
[Source "ChessBase"]
[SourceDate "2002.05.23"]
[SourceVersion "1"]
[SourceVersionDate "2002.05.23"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. a4 e5 7. Nb3 h6 8. Be2 Be6 9. 0-0 Nbd7 10. Be3 Rc8 11. Nd2 Be7 12. Bf3 0-0 13. a5 Qc7 14. Qe2 Rfe8 15. Rfc1 Qc6 16. h3 Nc5 17. g4 d5 18. exd5 Nxd5 19. Nce4 Qd7 20. Nxc5 Bxc5 21. Bxd5 Qxd5 22. c4 Qc6 23. Bxc5 Qxc5 24. Ne4 Qb4 25. b3 f5 26. Nd2 e4 27. Ra4 Qe7 28. Nf1 Bd7 29. Raa1 fxg4 30. hxg4 Qg5 31. Ne3 h5 32. Rd1 Be6 33. Rd4 hxg4 34. Rxe4 g3 35. f4 Qh4 36. Nf1 Bd7 37. Rxe8+ Rxe8 38. Qf3 g2 39. Qxg2 Qxf4 40. Rd1 Bc6 41. Qg3 Qxg3+ 42. Nxg3 Re3 43. Nf5 Re5 44. Nd4 Rxa5 45. Nxc6 bxc6 46. Rd6 Rc5 47. Kf2 Kf8 1/2-1/2

[Event "Baltic Sea tt5 B06 corr8691"]
[Site "ICCF corr"]
[Date "1986.??.??"]
[Round "?"]
[White "Hahn, Klaus"]
[Black "Kveinys, Aloyzas L"]
[Result "1-0"]
[ECO "B33"]
[PlyCount "85"]
[EventDate "1986.??.??"]
[EventType "team (corr)"]
[EventRounds "15"]
[SourceTitle "Corr 2002"]
[Source "ChessBase"]
[SourceDate "2002.05.23"]
[SourceVersion "1"]
[SourceVersionDate "2002.05.23"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Qb6 5. Nb3 Nc6 6. Be3 Qc7 7. a3 Nf6 8. Nc3 d5 9. exd5 exd5 10. Nxd5 Nxd5 11. Qxd5 Be6 12. Qe4 Bd6 13. Bc4 0-0 14. Bxe6 Rae8 15. Nd4 Nxd4 16. Qxd4 Rxe6 17. 0-0-0 Rc8 18. c3 a5 19. Kb1 h6 20. Rd3 Qc6 21. Qd5 Qa6 22. Rhd1 a4 23. Qf5 Rce8 24. h4 Re5 25. Qd7 Bf8 26. Rd4 Qg6+ 27. Ka1 b5 28. Qg4 Qc2 29. Rc1 Qb3 30. Rd2 h5 31. Qd1 Qc4 32. Rd4 Qc6 33. g4 Bc5 34. gxh5 Qe6 35. Rg4 Bxe3 36. fxe3 Rxe3 37. Qd4 Qe5 38. Rcg1 Re1+ 39. Rxe1 Qxe1+ 40. Ka2 Qe6+ 41. c4 f6 42. h6 Rc8 43. Qd5 1-0

[Event "Baltic Sea tt5 B06 corr8691"]
[Site "ICCF corr"]
[Date "1986.??.??"]
[Round "?"]
[White "Hahn, Klaus"]
[Black "Maciejczak, Andrzej"]
[Result "1-0"]
[ECO "C55"]
[PlyCount "47"]
[EventDate "1986.??.??"]
[EventType "team (corr)"]
[EventRounds "15"]
[SourceTitle "Corr 2002"]
[Source "ChessBase"]
[SourceDate "2002.05.23"]
[SourceVersion "1"]
[SourceVersionDate "2002.05.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Be7 5. Nc3 d6 6. h3 Na5 7. Bb3 Nxb3 8. axb3 0-0 9. Bg5 c6 10. Ne2 Qc7 11. 0-0 h6 12. Be3 a6 13. Nh2 d5 14. f3 Be6 15. g4 Nd7 16. Kg2 d4 17. Bd2 g5 18. Rh1 b5 19. h4 c5 20. Nf1 c4 21. bxc4 bxc4 22. hxg5 hxg5 23. Rh5 f6 24. Nfg3 1-0

[Event "Baltic Sea tt5 B06 corr8691"]
[Site "ICCF corr"]
[Date "1986.??.??"]
[Round "?"]
[White "Hahn, Klaus"]
[Black "Pitksar, Kalju"]
[Result "0-1"]
[ECO "C50"]
[PlyCount "87"]
[EventDate "1986.??.??"]
[EventType "team (corr)"]
[EventRounds "15"]
[SourceTitle "Corr 2002"]
[Source "ChessBase"]
[SourceDate "2002.05.23"]
[SourceVersion "1"]
[SourceVersionDate "2002.05.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. d3 Nf6 5. Nc3 h6 6. h3 d6 7. Na4 Bb6 8. c3 Na5 9. Nxb6 axb6 10. Bb5+ Nc6 11. 0-0 0-0 12. Nh2 Ne7 13. f4 exf4 14. Bxf4 Ng6 15. Bd2 Be6 16. a3 d5 17. Qc2 dxe4 18. d4 Nh5 19. Rf2 Ng3 20. Nf1 Nxf1 21. Raxf1 f5 22. Be2 Qd5 23. Qc1 Kh7 24. Bh5 Ne7 25. Bf4 c6 26. h4 b5 27. Qe3 Qd7 28. Be2 Nd5 29. Qg3 g6 30. Qh2 Rf7 31. g3 Raf8 32. Bd1 b6 33. Re1 Nxf4 34. gxf4 Qc7 35. Qg3 Rg7 36. Re3 c5 37. dxc5 bxc5 38. Kf1 Rd8 39. Ke1 Rgd7 40. Bc2 b4 41. Rg2 Rg8 42. axb4 cxb4 43. cxb4 Qb6 44. Ra3 0-1

[Event "Baltic Sea tt5 B06 corr8691"]
[Site "ICCF corr"]
[Date "1986.??.??"]
[Round "?"]
[White "Hahn, Klaus"]
[Black "Rickers, Gerhard"]
[Result "1/2-1/2"]
[ECO "C55"]
[PlyCount "87"]
[EventDate "1986.??.??"]
[EventType "team (corr)"]
[EventRounds "15"]
[SourceTitle "Corr 2002"]
[Source "ChessBase"]
[SourceDate "2002.05.23"]
[SourceVersion "1"]
[SourceVersionDate "2002.05.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Be7 5. Nc3 d6 6. h3 0-0 7. a3 Nd4 8. Nxd4 exd4 9. Nd5 Nxd5 10. Bxd5 c6 11. Ba2 Be6 12. Bxe6 fxe6 13. 0-0 e5 14. Qh5 Qd7 15. Bd2 Rf7 16. f4 g6 17. Qh6 exf4 18. Rxf4 Raf8 19. Raf1 Bf6 20. R4f3 Qe7 21. Qf4 Qe6 22. Qg3 Be5 23. Qh4 Bf6 24. Qf2 Bg7 25. Rxf7 Rxf7 26. Qxf7+ Qxf7 27. Rxf7 Kxf7 28. Kf2 Ke6 29. Kf3 Bf6 30. Bh6 b5 31. b3 a6 32. Kg4 Be5 33. h4 Bf6 34. h5 Be5 35. hxg6 hxg6 36. Bf4 Bf6 37. Bd2 Kd7 38. Be1 Ke6 39. a4 bxa4 40. bxa4 c5 41. Bg3 Be7 42. Bh4 Bf8 43. Bd8 Bh6 44. Ba5 1/2-1/2

[Event "Baltic Sea tt5 B06 corr8691"]
[Site "ICCF corr"]
[Date "1986.??.??"]
[Round "?"]
[White "Labuz, Leszek"]
[Black "Hahn, Klaus"]
[Result "1-0"]
[ECO "B47"]
[PlyCount "55"]
[EventDate "1986.??.??"]
[EventType "team (corr)"]
[EventRounds "15"]
[SourceTitle "Corr 2002"]
[Source "ChessBase"]
[SourceDate "2002.05.23"]
[SourceVersion "1"]
[SourceVersionDate "2002.05.23"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Qc7 6. f4 Nc6 7. Be2 b5 8. Nxc6 dxc6 9. 0-0 b4 10. Na4 Nf6 11. Bf3 Bb7 12. Be3 c5 13. c3 a5 14. Rc1 Nd7 15. Rf2 Nb6 16. cxb4 Nxa4 17. Qxa4+ Bc6 18. Qb3 axb4 19. Bxc5 Bxc5 20. Rxc5 Qb6 21. Qc4 Bd7 22. Rc7 Rxa2 23. Rxd7 Kxd7 24. Qxa2 Rc8 25. Qa4+ Ke7 26. g3 Rc1+ 27. Kg2 Qd4 28. Rc2 1-0

[Event "Baltic Sea tt5 B06 corr8691"]
[Site "ICCF corr"]
[Date "1986.??.??"]
[Round "?"]
[White "Lang, Herbert"]
[Black "Hahn, Klaus"]
[Result "1/2-1/2"]
[ECO "B43"]
[PlyCount "60"]
[EventDate "1986.??.??"]
[EventType "team (corr)"]
[EventRounds "15"]
[SourceTitle "Corr 2002"]
[Source "ChessBase"]
[SourceDate "2002.05.23"]
[SourceVersion "1"]
[SourceVersionDate "2002.05.23"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Qc7 6. Be2 b5 7. 0-0 Bb7 8. Bf3 Nc6 9. Nxc6 Bxc6 10. Re1 d6 11. Bg5 Be7 12. Qd2 Rd8 13. Rad1 Nf6 14. Qe3 0-0 15. Ne2 Ne8 16. Nd4 Bb7 17. Bg4 Bxg5 18. Qxg5 Qc8 19. c3 Nf6 20. Bf3 h6 21. Qh4 Rd7 22. a3 Qc5 23. Re3 Qg5 24. Qxg5 hxg5 25. h3 g6 26. Nb3 Rc8 27. Rde1 Ne8 28. Bd1 Kg7 29. Rg3 Kh6 30. Bc2 Ng7 1/2-1/2

[Event "Baltic Sea tt5 B06 corr8691"]
[Site "ICCF corr"]
[Date "1986.??.??"]
[Round "?"]
[White "Loeffler, Bernd"]
[Black "Hahn, Klaus"]
[Result "1/2-1/2"]
[ECO "A90"]
[PlyCount "25"]
[EventDate "1986.??.??"]
[EventType "team (corr)"]
[EventRounds "15"]
[SourceTitle "Corr 2002"]
[Source "ChessBase"]
[SourceDate "2002.05.23"]
[SourceVersion "1"]
[SourceVersionDate "2002.05.23"]
[SourceQuality "1"]

1. d4 e6 2. c4 f5 3. g3 Nf6 4. Bg2 d5 5. Nf3 c6 6. Nbd2 Bd6 7. Ne5 Nbd7 8. f4 0-0 9. 0-0 Qe8 10. Qb3 Kh8 11. Ndf3 Ne4 12. Nxd7 Qxd7 13. Ne5 1/2-1/2

[Event "Baltic Sea tt5 B06 corr8691"]
[Site "ICCF corr"]
[Date "1986.??.??"]
[Round "?"]
[White "Nyman, Karl"]
[Black "Hahn, Klaus"]
[Result "1-0"]
[ECO "A85"]
[PlyCount "93"]
[EventDate "1986.??.??"]
[EventType "team (corr)"]
[EventRounds "15"]
[SourceTitle "Corr 2002"]
[Source "ChessBase"]
[SourceDate "2002.05.23"]
[SourceVersion "1"]
[SourceVersionDate "2002.05.23"]
[SourceQuality "1"]

1. c4 e6 2. Nc3 f5 3. d4 Nf6 4. g3 Bb4 5. Bg2 0-0 6. Nf3 Ne4 7. Qc2 c6 8. 0-0 Nxc3 9. bxc3 Be7 10. c5 b6 11. cxb6 axb6 12. e4 fxe4 13. Qxe4 Ba6 14. Re1 Bc4 15. Qg4 Bd3 16. Ne5 Bf5 17. Qe2 h6 18. c4 Bb4 19. Bd2 Bxd2 20. Qxd2 Ra4 21. Qd1 Ra3 22. Qc1 Ra4 23. Qd1 Ra3 24. Qc1 Ra4 25. Re3 Qc7 26. Qc3 d6 27. Nd3 Nd7 28. Nf4 e5 29. dxe5 Nxe5 30. Qb3 Rfa8 31. c5+ Kh8 32. cxb6 Qb7 33. Re2 R4a6 34. Qb4 Rd8 35. Rb2 d5 36. Re1 Nc4 37. Rbe2 Rxb6 38. Re8+ Rxe8 39. Rxe8+ Kh7 40. Qf8 Rb1+ 41. Bf1 Rxf1+ 42. Kxf1 Qb1+ 43. Kg2 Be4+ 44. Kh3 Bf5+ 45. g4 Qf1+ 46. Kg3 Qg1+ 47. Ng2 1-0

[Event "Baltic Sea tt5 B06 corr8691"]
[Site "ICCF corr"]
[Date "1986.??.??"]
[Round "?"]
[White "Poletaev, Lev Borisovich"]
[Black "Hahn, Klaus"]
[Result "1-0"]
[ECO "A93"]
[PlyCount "35"]
[EventDate "1986.??.??"]
[EventType "team (corr)"]
[EventRounds "15"]
[SourceTitle "Corr 2002"]
[Source "ChessBase"]
[SourceDate "2002.05.23"]
[SourceVersion "1"]
[SourceVersionDate "2002.05.23"]
[SourceQuality "1"]

1. Nf3 e6 2. g3 f5 3. d4 Nf6 4. Bg2 d5 5. 0-0 Be7 6. Nbd2 Nbd7 7. c4 c6 8. Qc2 Ne4 9. b3 0-0 10. Bb2 Ndf6 11. Ne5 Nxd2 12. Qxd2 Bd7 13. f3 Be8 14. e4 fxe4 15. fxe4 Bg6 16. Nxg6 hxg6 17. Qe2 Nh7 18. exd5 1-0

[Event "DDR-ch13 sf corr"]
[Site "DDR"]
[Date "1985.??.??"]
[Round "?"]
[White "Hahn, Klaus"]
[Black "Kuehn, Peter"]
[Result "0-1"]
[ECO "A85"]
[PlyCount "114"]
[EventDate "1985.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "DDR"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. c4 e6 2. Nc3 f5 3. d4 Nf6 4. e3 Be7 5. Qc2 0-0 6. Nge2 d6 7. Ng3 b6 8. Bd3 Nc6 9. a3 a5 10. d5 Ne5 11. dxe6 Nxd3+ 12. Qxd3 g6 13. Nd5 Bxe6 14. Nxe7+ Qxe7 15. 0-0 Qf7 16. b3 a4 17. Bb2 axb3 18. Rfc1 Ra4 19. Qxb3 Rxc4 20. Rxc4 Bxc4 21. Qc3 Qe6 22. Rc1 d5 23. f3 c5 24. e4 fxe4 25. fxe4 Ba6 26. exd5 Qxd5 27. Nf1 Qd3 28. Qe5 Qf5 29. Qxf5 gxf5 30. Ne3 f4 31. Nf5 h5 32. Re1 Nd5 33. Ng7 c4 34. Ne6 Re8 35. Re5 c3 36. Bc1 Nc7 37. Rg5+ Kf7 38. Rg7+ Kxe6 39. Rxc7 Kf5 40. Kf2 Re2+ 41. Kf3 Re1 42. Bxf4 Rf1+ 43. Ke3 Rxf4 44. Rxc3 Re4+ 45. Kf2 Re2+ 46. Kg3 Bb7 47. Rb3 Rxg2+ 48. Kh4 Rxh2+ 49. Kg3 Ra2 50. Rb5+ Ke4 51. Rxb6 Bc8 52. Kh4 Bg4 53. Ra6 Kd4 54. a4 Kc4 55. Ra7 Kb4 56. a5 Rxa5 57. Rb7+ Kc4 0-1

[Event "corr"]
[Site "corr"]
[Date "1983.??.??"]
[Round "?"]
[White "Hahn, Klaus"]
[Black "Richter, Stephan"]
[Result "0-1"]
[ECO "D26"]
[PlyCount "48"]
[EventDate "1983.??.??"]
[EventType "tourn (corr)"]
[EventRounds "1"]
[SourceTitle "Corr 2000"]
[Source "ChessBase"]
[SourceDate "2000.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. Qe2 a6 7. dxc5 Bxc5 8. e4 0-0 9. 0-0 b5 10. Bd3 Nc6 11. Bg5 Be7 12. Rd1 Qb6 13. e5 Nd5 14. a3 Rd8 15. Bxe7 Ncxe7 16. Nd4 Nf4 17. Qe4 Nxd3 18. Qxa8 Bb7 19. Qxd8+ Qxd8 20. Rxd3 Nc6 21. Nc3 Nxd4 22. Rad1 Qg5 23. Rg3 Qxe5 24. Rg4 Nc6 0-1

[Event "DDR-ch10 corr7981"]
[Site "DDR"]
[Date "1980.??.??"]
[Round "?"]
[White "Anschuetz, Bernd"]
[Black "Hahn, Klaus"]
[Result "1/2-1/2"]
[ECO "B48"]
[PlyCount "175"]
[EventDate "1979.??.??"]
[EventType "tourn (corr)"]
[EventRounds "12"]
[EventCountry "DDR"]
[SourceTitle "Corr 2000"]
[Source "ChessBase"]
[SourceDate "2000.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Qc7 6. Be3 Nc6 7. Bd3 Nf6 8. 0-0 Nxd4 9. Bxd4 Bc5 10. Bxf6 gxf6 11. Qg4 Kf8 12. Kh1 h5 13. Qh4 Be7 14. f4 b5 15. f5 Qe5 16. Rae1 Bb7 17. Rf3 Rh6 18. Ref1 Kg7 19. Rg3+ Kh8 20. a3 Rg8 21. Rxg8+ Kxg8 22. Rf3 Bd6 23. Nd1 Bc5 24. Qf4 Qxf4 25. Rxf4 h4 26. Nf2 e5 27. Rg4+ Kf8 28. Kg1 d5 29. Kf1 Rh5 30. exd5 Bxd5 31. Ke2 Ke7 32. h3 Bd4 33. b3 Bc6 34. Be4 Bd7 35. Nd1 Bxf5 36. Bxf5 Rxf5 37. Rxh4 Rg5 38. Rg4 Rg6 39. c3 Bb6 40. Rxg6 fxg6 41. Nb2 e4 42. a4 f5 43. axb5 axb5 44. Nd1 Ke6 45. Ne3 Ke5 46. Nc2 Kd5 47. Na3 Kc5 48. Nc2 Bd8 49. Kd2 Bg5+ 50. Kd1 Bh6 51. Nb4 Bf8 52. Ke2 Kd6 53. Nc2 Kd5 54. Ne3+ Ke5 55. Nc2 Kd5 56. Ne3+ Kc5 57. Nc2 Bg7 58. Kd2 Bh6+ 59. Kd1 f4 60. Ke2 Bg7 61. Kd2 g5 62. Nb4 Be5 63. Nc2 Kd5 64. Nb4+ Kd6 65. Nc2 Kd5 66. Nb4+ Kc5 67. Nc2 Bf6 68. Nb4 Kd6 69. Nc2 Kd5 70. Nb4+ Ke6 71. Nc2 Kf5 72. c4 bxc4 73. bxc4 Ke5 74. Ke2 Be7 75. Na1 Kd4 76. Nb3+ Kxc4 77. Nd2+ Kd5 78. Nf1 Bb4 79. Nh2 Ke6 80. Ng4 Bc5 81. Nh2 Kf5 82. Ng4 Bb6 83. Nh6+ Kg6 84. Ng4 Bd4 85. Nh2 Kh5 86. Nf1 Bc3 87. Kf2 Kh4 88. Ke2 1/2-1/2

[Event "Baltic Sea tt4 corr"]
[Site "corr"]
[Date "1980.??.??"]
[Round "?"]
[White "Busch, D."]
[Black "Hahn, Klaus"]
[Result "1/2-1/2"]
[ECO "B42"]
[PlyCount "110"]
[EventDate "1980.??.??"]
[EventType "team (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 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 Qc7 6. 0-0 b5 7. a4 b4 8. c3 Nc6 9. Nxc6 Qxc6 10. Re1 Bb7 11. Be3 Nf6 12. f3 Bc5 13. Qd2 bxc3 14. Nxc3 d5 15. exd5 Nxd5 16. Be4 0-0 17. Nxd5 exd5 18. Bxh7+ Kxh7 19. Qc2+ Kg8 20. Bxc5 Rfc8 21. Rac1 Rc7 22. a5 Re8 23. b4 Rcc8 24. Qd2 Rxe1+ 25. Rxe1 Re8 26. Kf2 Rxe1 27. Qxe1 Qh6 28. Qe5 Bc6 29. g4 Bb5 30. Bd4 f6 31. Qxd5+ Kh7 32. Qf5+ g6 33. Qxf6 Qxh2+ 34. Ke3 Qe2+ 35. Kf4 Qh2+ 36. Ke4 Qe2+ 37. Kd5 Qc4+ 38. Ke5 Qc7+ 39. Qd6 Qxd6+ 40. Kxd6 g5 41. Kd5 Kg6 42. Bb6 Be2 43. Ke4 Bb5 44. Bd8 Bc6+ 45. Ke3 Kh6 46. Kf2 Bb5 47. Kg3 Be2 48. Be7 Kg6 49. Bxg5 Kxg5 50. f4+ Kf6 51. Kh3 Kg6 52. Kh4 Kf6 53. Kg3 Kg6 54. g5 Kf5 55. Kf2 Bb5 1/2-1/2

[Event "DDR-ch10 corr7981"]
[Site "DDR"]
[Date "1980.??.??"]
[Round "?"]
[White "Hahn, Klaus"]
[Black "Schlachetka, Werner"]
[Result "0-1"]
[ECO "B33"]
[PlyCount "172"]
[EventDate "1979.??.??"]
[EventType "tourn (corr)"]
[EventRounds "12"]
[EventCountry "DDR"]
[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 a5 15. Bc4 Rb8 16. Ra2 Kh8 17. h4 Bh6 18. g4 f6 19. Nce3 Bxe3 20. Nxe3 Ne7 21. Nf5 Bxf5 22. gxf5 g6 23. Be6 gxf5 24. exf5 Qc7 25. Qf3 d5 26. Rg1 d4 27. Rg3 dxc3 28. Qxc3 Qb7 29. Qf3 Nc6 30. Rg4 Qb6 31. Qe3 Nd4 32. Qh6 Qb7 33. Bd5 Qb4+ 34. Kd1 Qe7 35. Be4 Rbd8 36. Ke1 Qb4+ 37. Kf1 Rf7 38. Kg2 Ne2 39. Qe3 Nf4+ 40. Kh2 Rc7 41. Ra3 Rd2 42. Rb3 Rxf2+ 43. Qxf2 Qxb3 44. Rg3 Qb4 45. Bg2 Nh5 46. Rd3 Qf4+ 47. Qxf4 Nxf4 48. Rd2 Kg7 49. Bf3 Kf7 50. Kg3 Ke7 51. Rd1 Rc5 52. h5 h6 53. Rd2 Rb5 54. Rc2 Rb3 55. Rc7+ Kd6 56. Rh7 Nd5 57. Kf2 Rxb2+ 58. Ke1 a4 59. Ra7 Nc3 60. Ra6+ Kc5 61. Rxf6 Kd4 62. Rd6+ Ke3 63. f6 Rb1+ 64. Bd1 a3 65. f7 Nxd1 66. Rxd1 a2 67. f8Q Rxd1+ 68. Kxd1 a1Q+ 69. Kc2 Qa4+ 70. Kb1 Qf4 71. Qa3+ Kf2 72. Qa2+ Kg3 73. Qe6 Kh4 74. Qe8 Qf5+ 75. Kb2 Qxh5 76. Qe6 Qg5 77. Qd5 Qe3 78. Qg2 Qf4 79. Qh1+ Kg3 80. Kb1 Kf2 81. Qb7 e4 82. Qb2+ Kf1 83. Qb5+ Kg1 84. Qb6+ e3 85. Ka2 Qf2+ 86. Ka1 e2 0-1

[Event "DDR-ch10 corr7981"]
[Site "DDR"]
[Date "1979.??.??"]
[Round "?"]
[White "Drescher, Wolfgang"]
[Black "Hahn, Klaus"]
[Result "1-0"]
[ECO "E51"]
[PlyCount "147"]
[EventDate "1979.??.??"]
[EventType "tourn (corr)"]
[EventRounds "12"]
[EventCountry "DDR"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. Nf3 e6 2. c4 Nc6 3. d4 Bb4+ 4. Nc3 d5 5. e3 Nf6 6. Bd3 dxc4 7. Bxc4 0-0 8. 0-0 a6 9. a3 Bd6 10. Be2 e5 11. d5 Ne7 12. e4 h6 13. Ne1 Ng6 14. Nd3 Qe7 15. Kh1 Nh7 16. f3 f5 17. Be3 f4 18. Bf2 Nh8 19. b4 g5 20. g4 fxg3 21. hxg3 Nf6 22. Be3 Nh5 23. Kg2 Nf4+ 24. gxf4 gxf4 25. Bg1 Qh4 26. Nf2 Kf7 27. Bh2 Rg8+ 28. Kh1 Rg3 29. Qe1 h5 30. Rg1 Bd7 31. Nd3 Rag8 32. Qf2 R8g5 33. Rg2 Bh3 34. Rgg1 Ng6 35. Rae1 Bc8 36. Bd1 Qh3 37. Ne2 h4 38. Qf1 Qd7 39. Nf2 Qd8 40. Ng4 Rh5 41. Nc1 Rh8 42. Nd3 Qe7 43. Be2 Ke8 44. Rc1 Rf8 45. Ngf2 Rg8 46. Nc5 Nh8 47. Ng4 Nf7 48. Bxg3 fxg3 49. Ne6 Ng5 50. Nh6 Bxe6 51. dxe6 Rg6 52. Nf5 Qxe6 53. Bc4 Qd7 54. Bb3 Rf6 55. Qc4 Rxf5 56. exf5 Qxf5 57. Qg4 Qxf3+ 58. Qxf3 Nxf3 59. Bd5 Nxg1 60. Kxg1 c6 61. Bg2 Kd7 62. Kf1 Kc7 63. Rb1 b6 64. a4 b5 65. axb5 axb5 66. Ke2 Kb6 67. Kd3 c5 68. bxc5+ Bxc5 69. Bf1 Bd4 70. Ke4 h3 71. Bxh3 Ka5 72. Rb3 g2 73. Bxg2 Ka4 74. Rh3 1-0

[Event "DDR-ch10 corr7981"]
[Site "DDR"]
[Date "1979.??.??"]
[Round "?"]
[White "Gruener, Gottfried"]
[Black "Hahn, Klaus"]
[Result "1-0"]
[ECO "D30"]
[PlyCount "37"]
[EventDate "1979.??.??"]
[EventType "tourn (corr)"]
[EventRounds "12"]
[EventCountry "DDR"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. Nf3 e6 2. g3 d5 3. Bg2 c5 4. 0-0 Nc6 5. d4 cxd4 6. Nxd4 Nxd4 7. Qxd4 Nf6 8. c4 Be7 9. cxd5 exd5 10. Nc3 Be6 11. Rd1 Qa5 12. Bf4 Rd8 13. a3 0-0 14. b4 Qa6 15. Bc7 Ne4 16. Bxe4 Bf6 17. Qxf6 gxf6 18. b5 Rc8 19. bxa6 1-0

[Event "DDR-ch10 corr7981"]
[Site "DDR"]
[Date "1979.??.??"]
[Round "?"]
[White "Hahn, Klaus"]
[Black "Fiensch, Guenter"]
[Result "1/2-1/2"]
[ECO "B47"]
[PlyCount "61"]
[EventDate "1979.??.??"]
[EventType "tourn (corr)"]
[EventRounds "12"]
[EventCountry "DDR"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Qc7 6. g3 Nc6 7. Bg2 Nf6 8. 0-0 Be7 9. Nce2 0-0 10. c4 Rd8 11. Nc3 d6 12. Nxc6 bxc6 13. Qe2 a5 14. Bf4 e5 15. Be3 Rb8 16. h3 Ba6 17. Rfd1 a4 18. b3 axb3 19. axb3 Ra8 20. Ra4 Bb7 21. Rda1 Nd7 22. b4 Nb6 23. Rxa8 Rxa8 24. Rxa8+ Nxa8 25. Qa2 Nb6 26. Qa5 Bd8 27. Bf1 Nd7 28. Qa2 Nf8 29. Qd2 Ne6 30. c5 Be7 31. cxd6 1/2-1/2

[Event "DDR-ch10 corr7981"]
[Site "DDR"]
[Date "1979.??.??"]
[Round "?"]
[White "Hahn, Klaus"]
[Black "Heimbrodt, Wolfram"]
[Result "1/2-1/2"]
[ECO "B07"]
[PlyCount "84"]
[EventDate "1979.??.??"]
[EventType "tourn (corr)"]
[EventRounds "12"]
[EventCountry "DDR"]
[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. f3 c6 5. Be3 Bg7 6. Qd2 b5 7. a3 a6 8. Bh6 Bxh6 9. Qxh6 Nbd7 10. Qd2 Bb7 11. Be2 Qc7 12. Nh3 h6 13. Nf2 c5 14. d5 c4 15. 0-0 Qc5 16. f4 Kf8 17. Rad1 Kg7 18. Qd4 Rad8 19. Bf3 Qxd4 20. Rxd4 Nb6 21. g4 g5 22. Nh3 Nfd7 23. Rd2 Rdg8 24. Rg2 Kf8 25. Kf2 Ke8 26. Ke3 gxf4+ 27. Nxf4 Ne5 28. h3 Nbd7 29. Bd1 Ng6 30. Nce2 Nde5 31. Nd4 Nxf4 32. Rxf4 Bc8 33. Nf5 Bxf5 34. exf5 f6 35. Rh2 Kd7 36. Be2 Rc8 37. Rh1 Rc5 38. Rd4 Ke8 39. Ra1 Kf7 40. c3 Rb8 41. Kd2 a5 42. Kc2 Kg7 1/2-1/2

[Event "DDR-ch10 corr7981"]
[Site "DDR"]
[Date "1979.??.??"]
[Round "?"]
[White "Hahn, Klaus"]
[Black "Neubert, Gerhard"]
[Result "0-1"]
[ECO "C26"]
[PlyCount "37"]
[EventDate "1979.??.??"]
[EventType "tourn (corr)"]
[EventRounds "12"]
[EventCountry "DDR"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 e5 2. Nc3 Nf6 3. g3 Bc5 4. Bg2 Nc6 5. Nge2 d6 6. d3 Nd4 7. Nxd4 Bxd4 8. Ne2 Bb6 9. h3 Be6 10. d4 Bc4 11. dxe5 dxe5 12. Qxd8+ Rxd8 13. a3 0-0 14. Nc3 a6 15. b3 Be6 16. 0-0 Bd4 17. Bd2 Rd6 18. Ra2 Rfd8 19. Bc1 0-1

[Event "DDR-ch10 corr7981"]
[Site "DDR"]
[Date "1979.??.??"]
[Round "?"]
[White "Hahn, Klaus"]
[Black "Petzold, Joachim"]
[Result "1-0"]
[ECO "C26"]
[PlyCount "77"]
[EventDate "1979.??.??"]
[EventType "tourn (corr)"]
[EventRounds "12"]
[EventCountry "DDR"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 e5 2. Nc3 Nf6 3. g3 Bc5 4. Bg2 Nc6 5. Nge2 0-0 6. 0-0 a6 7. h3 Nd4 8. Kh2 b5 9. d3 Bb7 10. f4 Nxe2 11. Qxe2 d6 12. Bd2 Qd7 13. fxe5 dxe5 14. Rae1 b4 15. Nd1 a5 16. Ne3 Ne8 17. Bf3 Bc8 18. Bg4 Qd8 19. Bxc8 Bxe3 20. Bxe3 Rxc8 21. Bc5 Nd6 22. Ra1 Rb8 23. a3 b3 24. Qd1 Rb5 25. Be3 bxc2 26. Qxc2 Qb8 27. Rab1 Qb7 28. Bc5 Rb8 29. b4 Qc6 30. Qf2 Qd7 31. a4 R5b7 32. b5 c6 33. Bxd6 Qxd6 34. bxc6 Rxb1 35. Qxf7+ Kh8 36. Rxb1 Rf8 37. Qd5 Qf6 38. Qc5 Qf7 39. Rb2 1-0

[Event "DDR-ch10 corr7981"]
[Site "DDR"]
[Date "1979.??.??"]
[Round "?"]
[White "Hahn, Klaus"]
[Black "Pfretzschner, Roland"]
[Result "1-0"]
[ECO "B33"]
[PlyCount "71"]
[EventDate "1979.??.??"]
[EventType "tourn (corr)"]
[EventRounds "12"]
[EventCountry "DDR"]
[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 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 Kh8 15. h4 Bh6 16. g4 g6 17. g5 Bg7 18. Qf3 f5 19. Qg2 Ne7 20. h5 Nxd5 21. hxg6 Qe8 22. Bc4 Qxg6 23. Bxd5 Rb8 24. exf5 Bxf5 25. Rah4 Bxc2 26. Qg4 Rf7 27. Rxh7+ Kg8 28. R1h6 Qf5 29. Qh4 Kf8 30. Rh8+ Bxh8 31. Rxh8+ Ke7 32. Rxb8 Qf4 33. Rb7+ Kd8 34. Qh8+ Rf8 35. Rb8+ Kc7 36. Qg7+ 1-0

[Event "DDR-ch10 corr7981"]
[Site "DDR"]
[Date "1979.??.??"]
[Round "?"]
[White "Herschel, Knut"]
[Black "Hahn, Klaus"]
[Result "1-0"]
[ECO "B42"]
[PlyCount "49"]
[EventDate "1979.??.??"]
[EventType "tourn (corr)"]
[EventRounds "12"]
[EventCountry "DDR"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 Nc6 6. Nxc6 dxc6 7. f4 Bc5 8. Qe2 Ne7 9. Nd2 Ng6 10. g3 0-0 11. e5 Ne7 12. Ne4 Nf5 13. Nxc5 Qa5+ 14. Bd2 Qxc5 15. g4 Nd4 16. Qe4 g6 17. c3 Nb5 18. Be3 Qe7 19. h4 b6 20. 0-0-0 Bb7 21. f5 exf5 22. gxf5 Rfe8 23. fxg6 hxg6 24. Bc4 Kh8 25. Rd7 1-0

[Event "DDR-ch10 corr7981"]
[Site "DDR"]
[Date "1979.??.??"]
[Round "?"]
[White "Kampfhenkel, Ulrich"]
[Black "Hahn, Klaus"]
[Result "1-0"]
[ECO "B22"]
[PlyCount "57"]
[EventDate "1979.??.??"]
[EventType "tourn (corr)"]
[EventRounds "12"]
[EventCountry "DDR"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[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 Qd6 9. d5 Bxf3 10. Bxf3 Nd4 11. 0-0 e5 12. b4 cxb4 13. Nd2 Qc7 14. Re1 Nf6 15. Qa4+ Nd7 16. Bg4 f5 17. Bb2 b5 18. cxb5 Qc2 19. Qxc2 Nxc2 20. Bxf5 Nxe1 21. Rxe1 Rb8 22. Nc4 Rxb5 23. d6 h5 24. f4 Rh6 25. fxe5 Rc5 26. Bc1 Rxc4 27. Bxh6 gxh6 28. e6 Ne5 29. e7 1-0

[Event "DDR-ch10 corr7981"]
[Site "DDR"]
[Date "1979.??.??"]
[Round "?"]
[White "Weinitschke, Guenter"]
[Black "Hahn, Klaus"]
[Result "0-1"]
[ECO "B42"]
[PlyCount "82"]
[EventDate "1979.??.??"]
[EventType "tourn (corr)"]
[EventRounds "12"]
[EventCountry "DDR"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 Nc6 6. Nxc6 dxc6 7. 0-0 e5 8. Nd2 Qc7 9. a4 Nf6 10. Qf3 Bc5 11. Nc4 0-0 12. Qg3 Re8 13. Bd2 Nh5 14. Qg5 g6 15. a5 f6 16. Qh4 Qf7 17. Be2 Be6 18. b3 Ng7 19. Bc3 g5 20. Qg3 Nh5 21. Bxh5 Qxh5 22. Ne3 Qg6 23. Ra4 Rad8 24. Qf3 Rd7 25. Ng4 Rf7 26. Ne3 h5 27. Qe2 Rd8 28. Nc4 Bg4 29. Qe1 Rd1 30. Qxd1 Bxd1 31. Rxd1 Qxe4 32. Ne3 Qg6 33. Rd2 Bxe3 34. fxe3 Qf5 35. Ra1 Rd7 36. e4 Qe6 37. Rad1 Rxd2 38. Rxd2 Qg4 39. Rd8+ Kf7 40. Bb4 Qxe4 41. Rd7+ Kg6 0-1

[Event "DDR corr"]
[Site "DDR"]
[Date "1978.??.??"]
[Round "?"]
[White "Hahn, Klaus"]
[Black "Jesch, Eugen"]
[Result "1/2-1/2"]
[ECO "B17"]
[PlyCount "103"]
[EventDate "1978.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "DDR"]
[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. Nf3 Ngf6 6. Ng3 e6 7. Bc4 Nb6 8. Bb3 c5 9. c3 Qc7 10. dxc5 Bxc5 11. 0-0 0-0 12. Qe2 Bd7 13. Bg5 Be7 14. Ne4 Bc6 15. Nxf6+ Bxf6 16. Bxf6 gxf6 17. Rad1 Kh8 18. Nd4 Bd5 19. Bc2 Rg8 20. g3 Qe5 21. f4 Qxe2 22. Nxe2 Nc4 23. Kf2 Nxb2 24. Rd4 Nc4 25. Bb3 b5 26. f5 Nb6 27. Rfd1 a5 28. Bxd5 Nxd5 29. c4 bxc4 30. Rxc4 Rgc8 31. Rdc1 Rxc4 32. Rxc4 e5 33. g4 Nb4 34. a3 Nd3+ 35. Ke3 Rd8 36. Rc2 Nf4 37. Nxf4 exf4+ 38. Kxf4 Rd4+ 39. Kg3 Rd3+ 40. Kh4 Rxa3 41. Rc6 Kg7 42. g5 fxg5+ 43. Kxg5 Re3 44. f6+ Kf8 45. Rc5 Re8 46. Rxa5 Kg8 47. h4 Rd8 48. h5 Rc8 49. h6 Rb8 50. Kh5 Rc8 51. Rg5+ Kh8 52. Re5 1/2-1/2

[Event "DDR corr"]
[Site "DDR"]
[Date "1978.??.??"]
[Round "?"]
[White "Vogel"]
[Black "Hahn, Klaus"]
[Result "1-0"]
[ECO "B17"]
[PlyCount "73"]
[EventDate "1978.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "DDR"]
[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. Nf3 Ngf6 6. Ng3 e6 7. Bd3 c5 8. 0-0 cxd4 9. Nxd4 Bc5 10. Nf3 0-0 11. Qe2 b6 12. Bf4 Bb7 13. Rad1 Qc8 14. Kh1 Re8 15. Ne5 Nxe5 16. Bxe5 Be7 17. f3 h6 18. a3 Rd8 19. f4 Qc6 20. Bb5 Qc8 21. Rxd8+ Bxd8 22. Rd1 a6 23. Bd3 Qc6 24. b4 Be7 25. b5 axb5 26. Bxb5 Qc8 27. a4 Bc6 28. c4 Bxb5 29. axb5 Ra4 30. Rc1 Qa8 31. h3 Ra3 32. Kh2 Bc5 33. Bxf6 gxf6 34. Nh5 Bd4 35. Rd1 Bc3 36. Qg4+ Kf8 37. Rd7 1-0

[Event "DDR-ch9 corr7779"]
[Site "DDR"]
[Date "1977.??.??"]
[Round "?"]
[White "Anton, Volker Michael"]
[Black "Hahn, Klaus"]
[Result "0-1"]
[ECO "D00"]
[PlyCount "92"]
[EventDate "1977.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "DDR"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. d4 e6 2. g3 d5 3. Bg2 f5 4. Nh3 Nd7 5. 0-0 Bd6 6. c4 c6 7. Qd3 Ndf6 8. Nc3 Ne7 9. c5 Bc7 10. Bf4 Bxf4 11. gxf4 Ng6 12. Kh1 Qc7 13. e3 Bd7 14. b4 Ke7 15. a4 Nh4 16. b5 h6 17. a5 cxb5 18. Nxb5 Bxb5 19. Qxb5 g5 20. Rfb1 Rab8 21. a6 g4 22. Ng1 Nxg2 23. Kxg2 b6 24. cxb6 Rxb6 25. Qc5+ Kd7 26. Rxb6 Qxb6 27. Qxb6 axb6 28. Ne2 Ne4 29. Nc1 Nd2 30. Nd3 Kc6 31. Ne5+ Kb5 32. a7 Ra8 33. Nd7 Kc6 34. Nf8 Nb3 35. Ra3 Na5 36. Nxe6 Rxa7 37. Rc3+ Nc4 38. e4 fxe4 39. Kg3 b5 40. Kxg4 Ra2 41. f5 Rxf2 42. Nf4 b4 43. Rb3 Rd2 44. f6 Rxd4 45. Ne6 Rd1 46. Rxb4 Rf1 0-1

[Event "DDR-ch9 corr7779"]
[Site "DDR"]
[Date "1977.??.??"]
[Round "?"]
[White "Bade, Uwe"]
[Black "Hahn, Klaus"]
[Result "1-0"]
[ECO "B47"]
[PlyCount "53"]
[EventDate "1977.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "DDR"]
[SourceTitle "Myers"]
[Source "Myers"]
[SourceDate "2012.11.12"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.12"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Qc7 6. g3 Nc6 7. Bg2 Nge7 8. Nb3 Ne5 9. 0-0 Nc4 10. Nd4 Nc6 11. b3 N4a5 12. Bb2 Be7 13. Nxc6 Nxc6 14. Qg4 Bf6 15. Nd5 exd5 16. Bxf6 gxf6 17. Qg7 Rf8 18. exd5 Ne5 19. f4 d6 20. Rae1 Qe7 21. fxe5 fxe5 22. Rf6 Bg4 23. Ref1 Bh5 24. Qxh7 Bg6 25. Qg7 Rc8 26. h3 Rxc2 27. Rxg6 1-0

[Event "DDR-ch9 corr7779"]
[Site "DDR"]
[Date "1977.??.??"]
[Round "?"]
[White "Berndt, Klaus"]
[Black "Hahn, Klaus"]
[Result "0-1"]
[ECO "A90"]
[PlyCount "94"]
[EventDate "1977.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "DDR"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. c4 e6 2. d4 f5 3. g3 Nf6 4. Bg2 Bb4+ 5. Nd2 0-0 6. Ngf3 d6 7. 0-0 Bxd2 8. Qxd2 Ne4 9. Qc2 Nc6 10. Be3 a5 11. a3 Ne7 12. b4 c6 13. Nd2 Nf6 14. Bg5 Qc7 15. e4 h6 16. Bxf6 Rxf6 17. Qc3 Ng6 18. exf5 exf5 19. f4 Ne7 20. Nb3 a4 21. Nd2 b6 22. Rfe1 Be6 23. Re2 Ng6 24. Rae1 Bd7 25. Nf1 Ra7 26. Ne3 Rf8 27. c5 d5 28. Bxd5+ cxd5 29. Nxd5 Qd8 30. Nxb6 Bb5 31. Re6 Rf6 32. d5 Rxe6 33. Rxe6 Nf8 34. Re5 Ng6 35. Re3 Re7 36. d6 Rxe3 37. Qxe3 Qf6 38. Kf2 Qa1 39. Qe1 Qb2+ 40. Kg1 Bc6 41. Qf2 Qa1+ 42. Qf1 Qd4+ 43. Qf2 Qe4 44. Kf1 Bb5+ 45. Kg1 Qb1+ 46. Kg2 Bc6+ 47. Kh3 Qd1 0-1

[Event "corr"]
[Site "corr"]
[Date "1977.??.??"]
[Round "?"]
[White "Berndt, Klaus"]
[Black "Hahn, Klaus"]
[Result "0-1"]
[ECO "D66"]
[PlyCount "96"]
[EventDate "1977.??.??"]
[EventType "tourn (corr)"]
[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 e6 5. Bg5 Be7 6. e3 0-0 7. Rc1 Nbd7 8. Bd3 h6 9. Bh4 dxc4 10. Bxc4 Nd5 11. Bxe7 Qxe7 12. 0-0 Qb4 13. Bb3 N7f6 14. Qe2 a5 15. Ne5 Qd6 16. f4 b6 17. Nxd5 cxd5 18. Rc6 Qb4 19. Rfc1 Ba6 20. Qc2 Rac8 21. a3 Rxc6 22. Nxc6 Qd6 23. Ne5 Ne4 24. Qc7 Qxc7 25. Rxc7 Rc8 26. Rxc8+ Bxc8 27. Ba4 Nd6 28. Bb3 Ne4 29. Bc2 Nd6 30. Bd3 f6 31. Nf3 Bd7 32. Kf2 g5 33. g4 Kg7 34. Ke2 Bb5 35. Bxb5 Nxb5 36. Kd3 Nd6 37. Nd2 gxf4 38. exf4 Kg6 39. Ke3 f5 40. h3 fxg4 41. hxg4 h5 42. Kf3 hxg4+ 43. Kxg4 Nf5 44. Nf3 Ne3+ 45. Kg3 Kf5 46. Ng5 Nc4 47. b3 Nxa3 48. Kf3 Nc2 0-1

[Event "DDR-ch9 corr7779"]
[Site "DDR"]
[Date "1977.??.??"]
[Round "?"]
[White "Fechner, Juergen"]
[Black "Hahn, Klaus"]
[Result "1/2-1/2"]
[ECO "B23"]
[PlyCount "89"]
[EventDate "1977.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "DDR"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 e6 3. g3 Nc6 4. Bg2 g6 5. f4 d6 6. Nf3 Bg7 7. 0-0 Nge7 8. Ne2 Qb6 9. Kh1 f5 10. d3 fxe4 11. dxe4 d5 12. c3 Qc7 13. Ng5 h6 14. Nh3 0-0 15. Nf2 Kh7 16. g4 d4 17. e5 Rd8 18. Qe1 d3 19. Ng3 c4 20. Nfe4 Na5 21. Nd6 Bd7 22. Nge4 Rf8 23. Qh4 Qd8 24. f5 Nxf5 25. Qxd8 Raxd8 26. gxf5 Bxe5 27. fxg6+ Kxg6 28. Be3 b6 29. Rxf8 Rxf8 30. Rf1 Rxf1+ 31. Bxf1 b5 32. Kg1 Bc6 33. h3 Bd5 34. Bxa7 Nb7 35. Nxb7 Bxe4 36. Nc5 d2 37. Be2 Bc2 38. Nxe6 d1Q+ 39. Bxd1 Bxd1 40. Bd4 Bd6 41. Be3 Be5 42. Kf2 Bc2 43. Bf4 Bf5 44. Bxe5 Bxe6 45. h4 1/2-1/2

[Event "DDR-ch9 corr7779"]
[Site "DDR"]
[Date "1977.??.??"]
[Round "?"]
[White "Hahn, Klaus"]
[Black "Kuehn, Wolfgang"]
[Result "1/2-1/2"]
[ECO "B21"]
[PlyCount "106"]
[EventDate "1977.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "DDR"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 a6 3. d4 cxd4 4. c3 dxc3 5. Nxc3 e6 6. Bc4 Bb4 7. Bd2 b5 8. Bb3 Bb7 9. Qe2 Ne7 10. 0-0 0-0 11. Rad1 Nbc6 12. Be1 Qc7 13. Bc2 Ng6 14. g3 Rad8 15. h4 Bc5 16. Kh2 Nb4 17. Bb3 d5 18. a3 dxe4 19. Rxd8 Rxd8 20. Ng5 Nd5 21. Ncxe4 Bb6 22. Qh5 Nf8 23. Qe2 h6 24. Nh3 Ng6 25. Bd2 Nxh4 26. Rc1 Qe5 27. Bc2 Ng6 28. Rb1 Rc8 29. Bd3 Rd8 30. f4 Qd4 31. Nef2 Nf6 32. Bc3 Qd5 33. Rg1 Qf3 34. Qxf3 Bxf3 35. Bxf6 gxf6 36. Re1 e5 37. Be4 Bxe4 38. Nxe4 Kg7 39. f5 Ne7 40. g4 Rd3 41. Re2 Re3 42. Rxe3 Bxe3 43. Nhf2 Bxf2 44. Nxf2 h5 45. Kg3 hxg4 46. Kxg4 Nd5 47. Kf3 Kh6 48. Ne4 Kg7 49. Nc5 Nc7 50. b4 Kf8 51. Ke4 Ke7 52. Kd3 Kd6 53. Ne4+ Ke7 1/2-1/2

[Event "corr"]
[Site "corr"]
[Date "1977.??.??"]
[Round "?"]
[White "Hahn, Klaus"]
[Black "Lehmann, Wolf Dieter"]
[Result "1-0"]
[ECO "E24"]
[PlyCount "91"]
[EventDate "1977.??.??"]
[EventType "tourn (corr)"]
[SourceTitle "Corr 2000"]
[Source "ChessBase"]
[SourceDate "2000.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 5. Nf3 0-0 6. a3 Bxc3+ 7. bxc3 d5 8. cxd5 exd5 9. Bg5 cxd4 10. cxd4 h6 11. Bh4 Nc6 12. e3 Qa5+ 13. Qd2 Ne4 14. Qxa5 Nxa5 15. Bd3 Bf5 16. Bxe4 Bxe4 17. 0-0 Nb3 18. Ra2 a5 19. Nd2 Nxd2 20. Rxd2 Rfc8 21. Rb2 Bd3 22. Rd1 Ba6 23. Be7 b5 24. Bc5 Rab8 25. f3 f5 26. Kf2 Kf7 27. h3 Re8 28. g4 g6 29. gxf5 gxf5 30. Rg1 Rg8 31. Rxg8 Rxg8 32. Rc2 Rc8 33. Kg3 Ke6 34. Kf4 Kf6 35. Rg2 b4 36. Rb2 Rb8 37. axb4 axb4 38. Bxb4 Rb7 39. Ra2 Bc4 40. Ra4 h5 41. Bc5 Rb8 42. Ra7 Rg8 43. Rb7 Re8 44. Rb6+ Re6 45. Rb8 Kg6 46. Rg8+ 1-0

[Event "DDR-ch corr"]
[Site "DDR"]
[Date "1977.??.??"]
[Round "?"]
[White "Hahn, Klaus"]
[Black "Mathes, Werner"]
[Result "1-0"]
[ECO "B90"]
[PlyCount "83"]
[EventDate "1977.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "DDR"]
[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 a6 6. Bc4 e5 7. Nf5 Be6 8. Bxe6 fxe6 9. Ng3 Be7 10. 0-0 Nc6 11. Bg5 0-0 12. Qd2 Qc7 13. f3 Rac8 14. Nce2 b5 15. c3 Rfd8 16. Rad1 d5 17. exd5 Nxd5 18. Bxe7 Qb6+ 19. Kh1 Ncxe7 20. Qg5 Qe3 21. Qh4 Rf8 22. Rfe1 Rc4 23. Nd4 exd4 24. Rxe3 dxe3 25. Rd4 Rf4 26. Rxc4 Rxc4 27. Qg5 b4 28. Qe5 bxc3 29. Qxe6+ Kf8 30. bxc3 Rxc3 31. h3 Rc6 32. Qe5 Rf6 33. Ne4 Rf5 34. Qb8+ Kf7 35. Nd6+ Ke6 36. Nxf5 Nxf5 37. Kg1 a5 38. f4 Nfe7 39. Qe5+ Kf7 40. Kf1 Kf8 41. f5 Kf7 42. g4 1-0

[Event "DDR-ch9 corr7779"]
[Site "DDR"]
[Date "1977.??.??"]
[Round "?"]
[White "Hahn, Klaus"]
[Black "Mohaupt, Hermann"]
[Result "1-0"]
[ECO "B33"]
[PlyCount "69"]
[EventDate "1977.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "DDR"]
[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 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 b5 9. Nd5 Be7 10. Nxf6+ gxf6 11. Bc1 f5 12. c4 b4 13. Nc2 fxe4 14. Qd5 Qc7 15. Qxe4 Rb8 16. b3 f5 17. Qf3 0-0 18. Bb2 Be6 19. Ne3 Rf7 20. Nd5 Qc8 21. Rd1 Bf8 22. Be2 Ne7 23. Nxe7+ Bxe7 24. Qe3 Qc7 25. c5 f4 26. cxd6 Bxd6 27. Qe4 Re7 28. 0-0 Rb6 29. Bf3 Qb8 30. Rd2 Bc7 31. Rc1 Bc8 32. Rc6 Bb7 33. Qc4+ Kf8 34. Rxb6 Bxb6 35. Qxb4 1-0

[Event "DDR-ch9 corr7779"]
[Site "DDR"]
[Date "1977.??.??"]
[Round "?"]
[White "Hahn, Klaus"]
[Black "Richter, Dieter"]
[Result "1/2-1/2"]
[ECO "C01"]
[PlyCount "117"]
[EventDate "1977.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "DDR"]
[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. exd5 exd5 4. Bd3 Bd6 5. Ne2 Ne7 6. Nbc3 Nbc6 7. a3 0-0 8. Be3 Re8 9. Qd2 a6 10. h4 Nf5 11. Nxd5 Bxa3 12. c4 Nxe3 13. fxe3 Bf8 14. g3 Bg4 15. 0-0 Qd7 16. Rf2 Ne7 17. Nef4 Nxd5 18. Nxd5 Be6 19. Be4 Rab8 20. Qd3 Kh8 21. Nc3 g6 22. h5 f5 23. Bd5 c6 24. Bxe6 Qxe6 25. Rf3 Bb4 26. Kf2 Bxc3 27. Qxc3 Kg8 28. hxg6 hxg6 29. Rh1 b5 30. d5 Qe5 31. dxc6 Qxc3 32. bxc3 Rec8 33. Rf4 Rxc6 34. Rb1 Kg7 35. Kf3 Re8 36. cxb5 axb5 37. Rb3 Rc5 38. g4 fxg4+ 39. Rxg4 Rh8 40. Ra3 Rh3+ 41. Ke2 g5 42. Ra5 Kh6 43. Rb4 Rxc3 44. Rbxb5 Rcxe3+ 45. Kd2 Reg3 46. Ke2 Rh2+ 47. Kf1 Rc3 48. Rc5 Rg3 49. Rc6+ Kh5 50. Rc8 Rf3+ 51. Kg1 Rb2 52. Rh8+ Kg4 53. Rg8 Rg3+ 54. Kf1 Kh5 55. Rh8+ Kg6 56. Ra6+ Kg7 57. Rah6 Rf3+ 58. Kg1 Rf6 59. R8h7+ 1/2-1/2

[Event "DDR-ch9 corr7779"]
[Site "DDR"]
[Date "1977.??.??"]
[Round "?"]
[White "Hahn, Klaus"]
[Black "Roemer, Bernd"]
[Result "1/2-1/2"]
[ECO "C01"]
[PlyCount "67"]
[EventDate "1977.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "DDR"]
[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. exd5 exd5 4. Bd3 Bd6 5. Ne2 Ne7 6. Nbc3 c6 7. Ng3 Qc7 8. Nce2 f5 9. Nh5 Ng6 10. g3 0-0 11. c3 Qf7 12. Nhf4 Nxf4 13. Bxf4 Bxf4 14. Nxf4 Re8+ 15. Kd2 Nd7 16. Qh5 Nf6 17. Qxf7+ Kxf7 18. f3 Bd7 19. Rae1 g5 20. Ng2 h6 21. Ne3 f4 22. gxf4 gxf4 23. Ng2 Nh5 24. Nh4 Rxe1 25. Rxe1 Rg8 26. c4 Nf6 27. c5 Rg5 28. Kc3 Ng8 29. Re5 Ne7 30. b4 Bh3 31. a4 Kf6 32. Re2 Rg1 33. Re5 Rg5 34. Re2 1/2-1/2

[Event "DDR-ch corr"]
[Site "DDR"]
[Date "1977.??.??"]
[Round "?"]
[White "Hahn, Klaus"]
[Black "Urban, HR."]
[Result "1/2-1/2"]
[ECO "B17"]
[PlyCount "103"]
[EventDate "1977.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "DDR"]
[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. Qe2 Nb6 8. Bb3 c5 9. Be3 Qc7 10. dxc5 Bxc5 11. N1f3 Bxe3 12. Qxe3 Nbd5 13. Qe5 h6 14. Bxd5 Qa5+ 15. c3 Qxd5 16. Nh3 b5 17. 0-0 Bb7 18. Nf4 Qxe5 19. Nxe5 Ke7 20. f3 Rhd8 21. Rfd1 Nd5 22. Nxd5+ Rxd5 23. Rxd5 Bxd5 24. Kf2 Rc8 25. a3 a5 26. Re1 Bb7 27. Rd1 Bd5 28. Rd2 Rc7 29. Ke3 Kd6 30. Nd3 Kc6 31. f4 Kb6 32. g3 Bc4 33. Ne5 Bd5 34. Nd3 f6 35. h4 h5 36. Nf2 b4 37. axb4 axb4 38. Nd1 Kb5 39. Rd4 Rc4 40. Kd3 Rxd4+ 41. Kxd4 Ka4 42. Kc5 Bf3 43. Ne3 bxc3 44. bxc3 Kb3 45. Kd6 Kxc3 46. Kxe6 Kd3 47. Nf5 Bg4 48. Kf7 Bxf5 49. Kxg7 Ke4 50. Kxf6 Bg4 51. Kg6 Bh3 52. Kg5 1/2-1/2

[Event "DDR-ch9 corr7779"]
[Site "DDR"]
[Date "1977.??.??"]
[Round "?"]
[White "Hahn, Klaus"]
[Black "Wagner, Harald"]
[Result "1-0"]
[ECO "B87"]
[PlyCount "121"]
[EventDate "1977.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "DDR"]
[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 a6 6. Bg5 e6 7. Bc4 b5 8. Bb3 Be7 9. a3 0-0 10. 0-0 Bb7 11. Re1 Nbd7 12. Ba2 Rc8 13. f3 Nb6 14. Nce2 Nc4 15. Bxc4 Rxc4 16. c3 Qc7 17. Ng3 Rd8 18. Qe2 h6 19. Bd2 Qd7 20. Be3 Bf8 21. Rad1 Rcc8 22. Nb3 Qc7 23. Qf2 Nd7 24. Rd2 Be7 25. Nh5 d5 26. Bf4 Qb6 27. exd5 Qxf2+ 28. Kxf2 Nc5 29. Nxc5 Bxc5+ 30. Be3 g6 31. Nf6+ Kg7 32. Ng4 Rxd5 33. Red1 h5 34. Bxc5 hxg4 35. Rxd5 Bxd5 36. Bd4+ f6 37. fxg4 Kf7 38. g5 f5 39. Rd2 Ke7 40. Ke3 Kd6 41. Kf4 Re8 42. Re2 Re7 43. b4 Rh7 44. g3 Ke7 45. h4 Bc4 46. Rh2 Kf7 47. Bf6 Bd5 48. Ke5 Ke8 49. Rd2 Rc7 50. Kf4 Rh7 51. Bd4 Kf7 52. Rf2 Bc4 53. Rh2 Bd5 54. Ke5 Rh8 55. Kd6 Rb8 56. Bf6 Bf3 57. Ke5 Rb6 58. Rf2 Be4 59. g4 Rc6 60. h5 Rxc3 61. hxg6+ 1-0

[Event "DDR-ch9 corr7779"]
[Site "DDR"]
[Date "1977.??.??"]
[Round "?"]
[White "Neubert, Gerhard"]
[Black "Hahn, Klaus"]
[Result "1/2-1/2"]
[ECO "A32"]
[PlyCount "143"]
[EventDate "1977.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "DDR"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. Nf3 e6 2. c4 c5 3. d4 Nf6 4. Nc3 cxd4 5. Nxd4 Bb4 6. Qb3 Na6 7. Bg5 Qa5 8. Bxf6 Nc5 9. Qc2 gxf6 10. f3 Na4 11. Rc1 Nxc3 12. bxc3 Ba3 13. Rb1 a6 14. e3 Bd6 15. Bd3 h5 16. f4 Qc7 17. a4 Bc5 18. Be4 Rb8 19. 0-0 f5 20. Bd3 d6 21. Kh1 Bd7 22. e4 fxe4 23. Bxe4 f5 24. Bf3 Kf7 25. Rfe1 Bxd4 26. cxd4 b5 27. d5 Qxc4 28. Bxh5+ Ke7 29. Qxf5 Qf1+ 30. Rxf1 exf5 31. Be2 bxa4 32. Bxa6 Rxb1 33. Rxb1 Ra8 34. Bc4 a3 35. Bb3 Rb8 36. Re1+ Kf6 37. Re3 Rb4 38. g3 Rd4 39. Re1 Rd3 40. Rb1 Rc3 41. Kg1 Bb5 42. Ba2 Bd3 43. Rd1 Be4 44. Rd2 Rc1+ 45. Kf2 Rb1 46. Ke2 Kg6 47. h3 Kh5 48. g4+ Kh4 49. gxf5 Rh1 50. f6 Bg6 51. f5 Bh5+ 52. Kd3 Kg5 53. Kc4 Kxf6 54. Kb5 Rxh3 55. Kc6 Ke5 56. Rf2 Rc3+ 57. Kb5 Kf6 58. Rh2 Bf7 59. Kb4 Rf3 60. Kb5 Re3 61. Kc6 Ke5 62. Rf2 Bh5 63. f6 Rc3+ 64. Kb6 Rc8 65. Kb7 Rf8 66. Kc7 Bg4 67. Rf1 Rf7+ 68. Kc6 Bd7+ 69. Kb6 Bf5 70. Rf3 Rxf6 71. Rxa3 Be4 72. Ra6 1/2-1/2

[Event "BCCA-CAN corr"]
[Site "England"]
[Date "1977.??.??"]
[Round "?"]
[White "Pfeiffer, Alfred"]
[Black "Hahn, Klaus"]
[Result "1-0"]
[ECO "A00"]
[PlyCount "113"]
[EventDate "1977.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "ENG"]
[SourceTitle "Corr 2000"]
[Source "ChessBase"]
[SourceDate "2000.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. Nf3 d5 2. b4 Bg4 3. Bb2 Bxf3 4. exf3 e6 5. a3 Nf6 6. d4 c6 7. c4 dxc4 8. Bxc4 Nd5 9. Nc3 Bd6 10. Nxd5 cxd5 11. Qa4+ Ke7 12. Bd3 Nd7 13. 0-0 Nb6 14. Qb3 Qc7 15. g3 Nc4 16. Rac1 b5 17. f4 h5 18. Rfe1 h4 19. Bxc4 bxc4 20. Qf3 Kd7 21. f5 Rae8 22. fxe6+ fxe6 23. Qg4 Re7 24. Rxe6 Kc6 25. Rxe7 Qxe7 26. Bc3 hxg3 27. hxg3 g5 28. Bd2 Qh7 29. Qf3 Qh2+ 30. Kf1 Qh1+ 31. Qxh1 Rxh1+ 32. Ke2 Rxc1 33. Bxc1 g4 34. f3 gxf3+ 35. Kxf3 Kb5 36. g4 Bf8 37. g5 c3 38. Ke2 Kc4 39. Be3 a6 40. Bf2 c2 41. Kd2 Kb3 42. Be3 Bg7 43. Kd3 Kxa3 44. Kc3 Ka4 45. g6 Kb5 46. Bd2 Kc6 47. Kxc2 Kd7 48. Kc3 Ke6 49. Bf4 Bf8 50. Be5 Be7 51. Kb3 Bd8 52. b5 a5 53. g7 Kf7 54. Bd6 Kxg7 55. Bc5 Kf7 56. b6 Ke6 57. b7 1-0

[Event "DDR-ch9 sf08 corr"]
[Site "DDR"]
[Date "1976.??.??"]
[Round "?"]
[White "Hahn, Klaus"]
[Black "Herschel, Knut"]
[Result "1-0"]
[ECO "B41"]
[PlyCount "77"]
[EventDate "1976.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "DDR"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nb3 Qc7 6. g3 Nf6 7. Bg2 Be7 8. Qe2 Nc6 9. c4 d6 10. Be3 0-0 11. 0-0 Bd7 12. f4 Na5 13. Nxa5 Qxa5 14. Nd2 Bc6 15. Rfd1 Rfd8 16. h3 Rac8 17. Kh2 Qc7 18. Rac1 b6 19. Bf2 Qb7 20. Rg1 Bf8 21. g4 b5 22. b3 bxc4 23. bxc4 Rb8 24. g5 Nd7 25. Nb3 Qc7 26. Be1 Rdc8 27. h4 Ba8 28. Bf3 Nc5 29. Nxc5 Qxc5 30. Bf2 Qa3 31. Rc2 Rc7 32. Bg4 d5 33. exd5 exd5 34. c5 Bxc5 35. Rg3 Qa5 36. Rxc5 Rxc5 37. Qe5 Rd8 38. Bd4 Rc2+ 39. Kh3 1-0

[Event "DDR-ch9 sf08 corr"]
[Site "DDR"]
[Date "1976.??.??"]
[Round "?"]
[White "Hahn, Klaus"]
[Black "Mueller, Siegmar"]
[Result "1-0"]
[ECO "C01"]
[PlyCount "81"]
[EventDate "1976.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "DDR"]
[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. exd5 exd5 4. Bd3 Nf6 5. Ne2 Bd6 6. Nbc3 c6 7. Ng3 Bg4 8. f3 Be6 9. Nce2 Qc7 10. Bg5 Nbd7 11. Qd2 h6 12. Bf4 0-0-0 13. Bxd6 Qxd6 14. c3 g6 15. a4 h5 16. h4 Rhe8 17. b4 Nb6 18. Kf2 Nc4 19. Qa2 Ng8 20. b5 f5 21. Bxc4 dxc4 22. bxc6 Qxc6 23. Nf4 Bf7 24. Rab1 Rd7 25. Rb4 Nf6 26. Rd1 Qd6 27. Qd2 Qe7 28. Re1 Qxe1+ 29. Qxe1 Rxe1 30. Kxe1 Ne8 31. Nf1 Nd6 32. Ne3 Kb8 33. a5 Rc7 34. Nc2 Rc6 35. Rb1 Rc7 36. Kd2 Re7 37. Nb4 Kc8 38. Nbd5 Bxd5 39. Nxd5 Rg7 40. Nf4 Kd7 41. Re1 1-0

[Event "DDR-ch9 sf08 corr"]
[Site "DDR"]
[Date "1976.??.??"]
[Round "?"]
[White "Schueler, Wolfgang"]
[Black "Hahn, Klaus"]
[Result "1/2-1/2"]
[ECO "C00"]
[PlyCount "34"]
[EventDate "1976.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "DDR"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 c5 2. f4 Nc6 3. Nf3 e6 4. d3 d5 5. Nbd2 Qc7 6. g3 Be7 7. Bg2 b5 8. 0-0 Nf6 9. e5 Nd7 10. Re1 Nb6 11. Nf1 h6 12. g4 Bd7 13. Ng3 g6 14. b3 a5 15. Bb2 c4 16. a3 Qa7 17. Kh1 Qc7 1/2-1/2

[Event "DDR-ch9 sf08 corr"]
[Site "DDR"]
[Date "1976.??.??"]
[Round "?"]
[White "Stolle, Erhard"]
[Black "Hahn, Klaus"]
[Result "1/2-1/2"]
[ECO "A90"]
[PlyCount "84"]
[EventDate "1976.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "DDR"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. d4 e6 2. c4 f5 3. Nf3 Nf6 4. g3 Bb4+ 5. Nbd2 0-0 6. Bg2 d6 7. 0-0 Bxd2 8. Qxd2 Ne4 9. Qc2 Nc6 10. a3 a5 11. b3 Ne7 12. Bb2 Ng6 13. e3 c6 14. b4 Qc7 15. Rfd1 axb4 16. axb4 Bd7 17. Qb3 d5 18. Rdc1 Qb6 19. h4 h5 20. c5 Qc7 21. Qd1 Nh8 22. Ne5 Nf6 23. Ra4 g6 24. Rca1 Rxa4 25. Rxa4 Kg7 26. Ra7 Nf7 27. Nd3 g5 28. hxg5 Nxg5 29. Nf4 Kh6 30. Ba3 Rg8 31. Bb2 Qb8 32. Ra2 Nge4 33. Bxe4 fxe4 34. Kg2 h4 35. Qh1 Rg4 36. Kf1 Nh5 37. Qh3 e5 38. dxe5 Nxf4 39. exf4 Qg8 40. Bd4 e3 41. Re2 Qg6 42. Bxe3 Qb1+ 1/2-1/2

[Event "DDR-ch8 sf03 corr"]
[Site "DDR"]
[Date "1974.??.??"]
[Round "?"]
[White "Hahn, Klaus"]
[Black "Anton, Volker Michael"]
[Result "1-0"]
[ECO "C01"]
[PlyCount "75"]
[EventDate "1974.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "DDR"]
[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. exd5 exd5 4. Bd3 Nc6 5. Ne2 Bd6 6. Nbc3 Nge7 7. a3 a6 8. Be3 Be6 9. Qd2 Qd7 10. Ng3 0-0 11. Nce2 Nf5 12. 0-0 Nce7 13. Nf4 Bxf4 14. Bxf4 Nh4 15. Bg5 Nhg6 16. Bf6 Qc6 17. f4 Bd7 18. Nh5 Bg4 19. Bxg7 Bxh5 20. Bxf8 Nxf8 21. f5 Qf6 22. Qf4 Nc6 23. g4 Qxd4+ 24. Qxd4 Nxd4 25. gxh5 Nd7 26. c3 Nc6 27. f6 Nce5 28. Bc2 Kh8 29. Rf5 Ng4 30. Re1 Rf8 31. h3 Ngxf6 32. Ref1 Rg8+ 33. Kh1 Ne4 34. Bxe4 dxe4 35. Rxf7 Ne5 36. Re7 Nc6 37. Rxe4 Rg3 38. Rf7 1-0

[Event "DDR-ch8 sf03 corr"]
[Site "DDR"]
[Date "1974.??.??"]
[Round "?"]
[White "Hahn, Klaus"]
[Black "Fauth, Heinz"]
[Result "1/2-1/2"]
[ECO "B04"]
[PlyCount "80"]
[EventDate "1974.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "DDR"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 g6 5. Be2 Bg7 6. c4 Nb6 7. exd6 cxd6 8. h3 Nc6 9. Nc3 Bf5 10. Be3 0-0 11. Rc1 d5 12. b3 dxc4 13. bxc4 Rc8 14. 0-0 Na5 15. c5 Nbc4 16. Na4 Nxe3 17. fxe3 e6 18. Nc3 e5 19. dxe5 Rxc5 20. Qxd8 Rxd8 21. e4 Be6 22. Nd5 Rxc1 23. Rxc1 Nc6 24. Ba6 Nxe5 25. Nxe5 Bxe5 26. Bxb7 Kg7 27. Rc2 Rb8 28. Bc6 Bg3 29. Kf1 f5 30. Ne3 fxe4 31. Bxe4 Rf8+ 32. Kg1 Be5 33. Nc4 Bd4+ 34. Kh2 h5 35. Nd2 Be5+ 36. Kg1 Bg3 37. Bf3 Bf5 38. Be4 Re8 39. Rc4 Kh6 40. Ra4 Rxe4 1/2-1/2

[Event "DDR-ch8 sf03 corr"]
[Site "DDR"]
[Date "1974.??.??"]
[Round "?"]
[White "Hahn, Klaus"]
[Black "Franke, Claus Peter"]
[Result "1/2-1/2"]
[ECO "B33"]
[PlyCount "84"]
[EventDate "1974.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "DDR"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 c5 2. d4 cxd4 3. Nf3 Nc6 4. Nxd4 e6 5. Nb5 d6 6. Bf4 e5 7. Be3 Nf6 8. N1c3 a6 9. Na3 b5 10. Nd5 Rb8 11. Nxf6+ Qxf6 12. c4 b4 13. Nb1 Qd8 14. Nd2 Be7 15. Bd3 0-0 16. h4 Be6 17. Qf3 Nd4 18. Bxd4 exd4 19. g4 Qa5 20. Qg3 b3 21. a3 Rfe8 22. Rd1 f5 23. exf5 Bxf5 24. 0-0 Bxh4 25. Qh3 Bxd3 26. Qxd3 Bf6 27. Nf3 Qc5 28. Rfe1 Rxe1+ 29. Rxe1 a5 30. Nd2 Qg5 31. Re4 a4 32. Kg2 d5 33. cxd5 Qxd5 34. f4 Rc8 35. Kg3 Rc2 36. Nf3 h6 37. g5 hxg5 38. fxg5 Bxg5 39. Rxd4 Qc5 40. Qe4 Qc7+ 41. Kh3 Qc8+ 42. Kg3 Qc7+ 1/2-1/2

[Event "DDR-ch8 sf03 corr"]
[Site "DDR"]
[Date "1974.??.??"]
[Round "?"]
[White "Hahn, Klaus"]
[Black "Siegl, Erich"]
[Result "1-0"]
[ECO "B99"]
[PlyCount "45"]
[EventDate "1974.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "DDR"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 c5 2. d4 cxd4 3. Nf3 d6 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Be7 8. Qf3 Qc7 9. 0-0-0 Nbd7 10. g4 b5 11. Bxf6 Nxf6 12. g5 Nd7 13. a3 Bb7 14. Bh3 g6 15. Rhg1 Nc5 16. Qe3 Qb6 17. Rge1 b4 18. axb4 Qxb4 19. Nf3 0-0 20. Rd4 Qa5 21. b4 Qa3+ 22. Kb1 Rab8 23. Nd5 1-0

[Event "DDR-ch8 sf03 corr"]
[Site "DDR"]
[Date "1974.??.??"]
[Round "?"]
[White "Hamm, Georg"]
[Black "Hahn, Klaus"]
[Result "1-0"]
[ECO "B10"]
[PlyCount "89"]
[EventDate "1974.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "DDR"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. Nf3 d5 2. g3 g6 3. Bg2 Bg7 4. 0-0 e5 5. d3 Ne7 6. Nbd2 0-0 7. e4 c6 8. b4 a5 9. bxa5 Qxa5 10. Bb2 d4 11. a4 Qc7 12. c3 c5 13. cxd4 cxd4 14. Ba3 Rd8 15. Nc4 Be6 16. Nfxe5 Nec6 17. Nxc6 Qxc6 18. e5 Qxa4 19. Qb1 Bxc4 20. dxc4 Nc6 21. Qxb7 Na5 22. Qb4 Nxc4 23. Bxa8 Rxa8 24. Qxa4 Rxa4 25. Bc5 Rxa1 26. Rxa1 Bxe5 27. f4 Bd6 28. Ra8+ Kg7 29. Bxd4+ Kh6 30. Rg8 f5 31. Bf6 Nd2 32. Bg7+ Kh5 33. Rh8 Bc5+ 34. Kg2 g5 35. Be5 gxf4 36. Bxf4 Ne4 37. Rxh7+ Kg6 38. Rh6+ Kf7 39. Rc6 Bf8 40. Kf3 Nc5 41. Be5 Ne6 42. h4 Bh6 43. Rb6 Bd2 44. Rb7+ Kf8 45. Rh7 1-0

[Event "DDR-ch8 sf03 corr"]
[Site "DDR"]
[Date "1974.??.??"]
[Round "?"]
[White "Roemer, Bernd"]
[Black "Hahn, Klaus"]
[Result "1-0"]
[ECO "B25"]
[PlyCount "95"]
[EventDate "1974.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "DDR"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 g6 3. g3 Bg7 4. Bg2 Nc6 5. d3 e6 6. f4 d6 7. Nf3 Nge7 8. 0-0 0-0 9. Bd2 Rb8 10. Rb1 b5 11. Nh4 Nd4 12. Ne2 d5 13. Be3 Nxe2+ 14. Qxe2 d4 15. Bd2 b4 16. g4 Bd7 17. f5 Nxf5 18. Nxf5 exf5 19. gxf5 Be5 20. Qf2 f6 21. Bh6 Rf7 22. fxg6 hxg6 23. Bf4 Qe7 24. Qg3 Rb6 25. Kh1 g5 26. Bxe5 fxe5 27. Rxf7 Kxf7 28. Bh3 Ke8 29. Rg1 Ra6 30. Bxd7+ Kxd7 31. Qh3+ Kc7 32. Qf5 Rf6 33. Qxg5 Kb6 34. Qg8 Qd6 35. Rg7 a6 36. Kg2 Rf8 37. Qh7 Ka5 38. Rg5 Rf6 39. Qg7 Re6 40. h4 Re7 41. Qg8 Qd7 42. h5 Re8 43. Qd5 Qxd5 44. exd5 e4 45. d6 exd3 46. cxd3 Kb6 47. d7 Rd8 48. Rg7 1-0

[Event "DDR-ch7 sf corr"]
[Site "DDR"]
[Date "1972.??.??"]
[Round "?"]
[White "Hahn, Klaus"]
[Black "Weinitschke, Guenter"]
[Result "1-0"]
[ECO "C01"]
[PlyCount "39"]
[EventDate "1972.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "DDR"]
[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. exd5 exd5 4. Bd3 Bd6 5. Nc3 Ne7 6. Nge2 c6 7. Ng3 Be6 8. Nce2 Qc7 9. Nh5 0-0 10. Nef4 Qd7 11. Nf6+ gxf6 12. Nh5 Qc8 13. Qd2 Nf5 14. g4 Rd8 15. Nxf6+ Kf8 16. gxf5 Bxf5 17. Qh6+ Ke7 18. Bg5 Bxd3 19. Ne4+ Ke8 20. Nxd6+ 1-0

[Event "DDR-ch corr"]
[Site "DDR"]
[Date "1972.??.??"]
[Round "?"]
[White "Kuhnert, Siegfried"]
[Black "Hahn, Klaus"]
[Result "0-1"]
[ECO "B98"]
[PlyCount "86"]
[EventDate "1972.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "DDR"]
[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 a6 6. Bg5 e6 7. f4 Be7 8. Qf3 h6 9. Bh4 Nc6 10. 0-0-0 Qc7 11. h3 b5 12. Bxf6 gxf6 13. g4 Bd7 14. Bg2 Rc8 15. a3 Qb6 16. Nxc6 Bxc6 17. Qe2 a5 18. Rhe1 Rc7 19. e5 Bxg2 20. exd6 Bxd6 21. Qxg2 Bxf4+ 22. Kb1 0-0 23. Ne4 Be5 24. g5 fxg5 25. Nxg5 hxg5 26. Rxe5 f6 27. Re2 b4 28. axb4 axb4 29. Qe4 Ra7 30. Rd4 Kg7 31. Rxb4 Rd8 32. Re1 Qa6 33. c3 Rd2 34. Kc1 Rh2 35. Rb8 Qa1+ 36. Qb1 Qa4 37. Rb4 Qc6 38. Rb8 Qd6 39. Rg8+ Kxg8 40. Qg6+ Rg7 41. Qe8+ Qf8 42. Qxe6+ Kh8 43. b4 Qa8 0-1

[Event "DDR-ch corr"]
[Site "DDR"]
[Date "1972.??.??"]
[Round "?"]
[White "Mathes, Werner"]
[Black "Hahn, Klaus"]
[Result "0-1"]
[ECO "B55"]
[PlyCount "118"]
[EventDate "1972.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "DDR"]
[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+ Bd7 7. Bxd7+ Nbxd7 8. Nf5 d5 9. exd5 Qa5+ 10. Nc3 Nb6 11. Qe2 0-0-0 12. 0-0 Nfxd5 13. Nxd5 Qxd5 14. Be3 Qe6 15. Ng3 Be7 16. a4 Kb8 17. b3 Nd5 18. Bf2 Rc8 19. c4 Nf4 20. Qc2 Qg6 21. Qc3 h5 22. Qxe5+ Bd6 23. Qd4 b6 24. a5 h4 25. Be3 Nxg2 26. Kxg2 hxg3 27. h4 Bc7 28. axb6 Bxb6 29. Bf4+ Ka8 30. Qd5+ Rc6 31. Rfd1 Qe6 32. Qxe6 Rxe6 33. Bxg3 Re2+ 34. Kf1 Rb2 35. Rd7 g5 36. c5 Bxc5 37. Ra5 Be3 38. Rd3 Bb6 39. Rxg5 Rc8 40. Re5 Rc1+ 41. Re1 Rcc2 42. Re8+ Kb7 43. h5 Rg2 44. Rb8+ Ka6 45. Rxb6+ axb6 46. Be5 Rbf2+ 47. Ke1 Ra2 48. Kf1 Rgf2+ 49. Kg1 Rfe2 50. Bc3 Rac2 51. Kf1 Rh2 52. Kg1 Rxh5 53. f4 Rhh2 54. Rf3 Rcg2+ 55. Kf1 Ra2 56. Kg1 Rhc2 57. Be5 Rc1+ 58. Rf1 Rxf1+ 59. Kxf1 Kb5 0-1

[Event "DDR-ch corr"]
[Site "DDR"]
[Date "1972.??.??"]
[Round "?"]
[White "Potthammel, Joerg"]
[Black "Hahn, Klaus"]
[Result "1-0"]
[ECO "B94"]
[PlyCount "41"]
[EventDate "1972.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "DDR"]
[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 a6 6. Bg5 Nbd7 7. Bc4 Qa5 8. Qd2 e6 9. 0-0-0 b5 10. Bb3 Bb7 11. Rhe1 h6 12. Bxf6 gxf6 13. Kb1 0-0-0 14. a3 h5 15. f4 Nc5 16. f5 Nxb3 17. cxb3 e5 18. b4 Qb6 19. Nb3 d5 20. Nxd5 Qc6 21. Rc1 1-0

