[Event "DDR-Cup corr"]
[Site "DDR"]
[Date "1989.??.??"]
[Round "?"]
[White "Hagen, Walter"]
[Black "Katz, K."]
[Result "1-0"]
[ECO "B12"]
[PlyCount "59"]
[EventDate "1989.??.??"]
[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. e5 Bf5 4. Nc3 e6 5. g4 Bg6 6. Nge2 f6 7. h4 fxe5 8. h5 Bf7 9. dxe5 Nd7 10. f4 Qb6 11. Nd4 Bc5 12. Na4 Qa5+ 13. c3 Bxd4 14. Qxd4 c5 15. Qd1 0-0-0 16. Be3 Ne7 17. Nxc5 Nxc5 18. b4 Qc7 19. Bxc5 g5 20. Bxe7 Qxe7 21. Qd4 Kb8 22. f5 exf5 23. gxf5 Rhe8 24. e6 h6 25. 0-0-0 Bg8 26. Bb5 Rf8 27. Qe5+ Ka8 28. Rxd5 Rxd5 29. Qxd5 Qf6 30. Qc5 1-0

[Event "DDR-Cup corr"]
[Site "DDR"]
[Date "1989.??.??"]
[Round "?"]
[White "Katz, K."]
[Black "Gruss"]
[Result "1-0"]
[ECO "C10"]
[PlyCount "89"]
[EventDate "1989.??.??"]
[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. Nc3 c5 4. exd5 exd5 5. dxc5 Nf6 6. Be3 Nc6 7. Nf3 Qa5 8. Nd4 Ne4 9. Nb3 Nxc3 10. Qd3 Qb4 11. bxc3 Qe4 12. Nd2 Qxd3 13. cxd3 Bf5 14. d4 0-0-0 15. Be2 h6 16. 0-0 g5 17. Rac1 Bg7 18. Nb3 Bg6 19. f4 Rde8 20. Kf2 Nd8 21. Bg4+ Kc7 22. fxg5 hxg5 23. Bxg5 Bh6 24. Bxh6 Rxh6 25. Rfe1 Be4 26. Nd2 f5 27. Nxe4 fxg4 28. Nd6 Rxe1 29. Rxe1 Ne6 30. Kg3 b6 31. Nf5 Rh5 32. cxb6+ axb6 33. Rxe6 Rxf5 34. Kxg4 Rf2 35. Kg3 Rxa2 36. h4 b5 37. Kf3 Rd2 38. g4 b4 39. cxb4 Rd3+ 40. Re3 Rxd4 41. Rb3 Kb6 42. b5 Ra4 43. h5 d4 44. h6 d3 45. Rxd3 1-0

[Event "DDR-Cup corr"]
[Site "DDR"]
[Date "1989.??.??"]
[Round "?"]
[White "Katz, K."]
[Black "Schaefer"]
[Result "1/2-1/2"]
[ECO "C43"]
[PlyCount "56"]
[EventDate "1989.??.??"]
[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 e5 2. Nf3 Nf6 3. d4 Nxe4 4. Bd3 d5 5. Nxe5 Nd7 6. Qe2 Nxe5 7. Bxe4 dxe4 8. Qxe4 Be6 9. Qxe5 Qd7 10. Be3 Bb4+ 11. c3 f6 12. Qh5+ Bf7 13. Qf3 Be7 14. 0-0 0-0-0 15. Nd2 h5 16. a4 g5 17. Ne4 Rdf8 18. Qe2 Qc6 19. Nc5 Bd5 20. f3 Bxc5 21. dxc5 Re8 22. Qf2 g4 23. fxg4 Rhg8 24. g5 fxg5 25. Bd4 Bc4 26. Rfe1 Ref8 27. Qe3 Rf5 28. b4 Rgf8 1/2-1/2

[Event "DDR-Cup corr"]
[Site "DDR"]
[Date "1989.??.??"]
[Round "?"]
[White "Schild, Helmut"]
[Black "Katz, K."]
[Result "1-0"]
[ECO "B17"]
[PlyCount "53"]
[EventDate "1989.??.??"]
[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. Nxf6+ Nxf6 7. Bd3 Bg4 8. c3 e6 9. 0-0 Bd6 10. c4 Qc7 11. h3 Bh5 12. Be3 Bf4 13. Qd2 Bxe3 14. fxe3 Bg6 15. Ne5 Bxd3 16. Qxd3 Rd8 17. Qa3 a6 18. Rac1 Qd6 19. Qxd6 Rxd6 20. Rc3 0-0 21. Rb3 Rb8 22. g4 Rdd8 23. g5 Ne4 24. Rxf7 Nxg5 25. Rfxb7 Rxb7 26. Rxb7 Nf3+ 27. Nxf3 1-0

[Event "DDR-CupT8 corr"]
[Site "DDR"]
[Date "1988.??.??"]
[Round "?"]
[White "Alder, Bodo"]
[Black "Katz, K."]
[Result "1/2-1/2"]
[ECO "B12"]
[PlyCount "97"]
[EventDate "1988.??.??"]
[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. e5 Bf5 4. Nc3 e6 5. g4 Bg6 6. Nge2 f6 7. Nf4 fxe5 8. Nxg6 hxg6 9. dxe5 Bc5 10. Bf4 Qb6 11. Qd2 Qxb2 12. Rb1 Qa3 13. Rb3 Qa5 14. Bd3 Ne7 15. 0-0 Rh4 16. Be2 b5 17. Bg3 Rh8 18. Rd1 b4 19. Nb1 Qxa2 20. Bd3 a5 21. Qg5 Rh6 22. Nd2 Bd4 23. Nf3 Bc3 24. Bh4 Ra7 25. Rxc3 bxc3 26. Nd4 Rxh4 27. Qxh4 Kd7 28. Qh8 Rb7 29. Qxg7 Rb1 30. Rxb1 Qxb1+ 31. Kg2 Qb4 32. Ne2 a4 33. h3 a3 34. Nc1 d4 35. Bxg6 Na6 36. f4 Qb1 37. f5 Qxc1 38. fxe6+ Kc8 39. Qf8+ Kb7 40. Qxe7+ Nc7 41. Qb4+ Kc8 42. e7 Qd2+ 43. Kg3 Qe3+ 44. Kh4 Qh6+ 45. Bh5 a2 46. Qa3 Qe6 47. g5 Qxe5 48. Bg4+ Kb7 49. Qxa2 1/2-1/2

[Event "DDR-chT corr"]
[Site "DDR"]
[Date "1988.??.??"]
[Round "?"]
[White "Hofmann, Reinald"]
[Black "Katz, K."]
[Result "0-1"]
[ECO "B13"]
[PlyCount "88"]
[EventDate "1988.??.??"]
[EventType "team (corr)"]
[EventRounds "2"]
[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. exd5 cxd5 4. Bd3 Nc6 5. c3 Nf6 6. Bf4 Bg4 7. Qb3 Na5 8. Qa4+ Bd7 9. Qc2 Qb6 10. Nf3 e6 11. a4 Nb3 12. Ra2 Rc8 13. Nbd2 Nxd2 14. Bxd2 Be7 15. Ne5 Qc7 16. Bg5 a6 17. h3 b5 18. Nxd7 Qxd7 19. axb5 axb5 20. Qe2 Rb8 21. Ra5 0-0 22. Rxb5 Rxb5 23. Bxb5 Qa7 24. 0-0 Rb8 25. Bd3 Qa2 26. Bc1 Qb3 27. f4 Bd6 28. f5 Re8 29. Bc2 Qb6 30. fxe6 Rxe6 31. Qf3 Bc7 32. g4 h6 33. h4 Qd6 34. Qf2 Re7 35. Bf5 g6 36. g5 hxg5 37. hxg5 gxf5 38. gxf6 Re4 39. Kh1 Qxf6 40. Rg1+ Kf8 41. Kg2 Qg6+ 42. Kf1 Qh5 43. Be3 Qh3+ 44. Qg2 Qxe3 0-1

[Event "DDR-CupT8 corr"]
[Site "DDR"]
[Date "1988.??.??"]
[Round "?"]
[White "Katz, K."]
[Black "Clemens, Christian"]
[Result "1/2-1/2"]
[ECO "B46"]
[PlyCount "95"]
[EventDate "1988.??.??"]
[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. Nc3 Qc7 6. Bd3 Nc6 7. Nxc6 bxc6 8. 0-0 Nf6 9. Qe2 d5 10. Bg5 Be7 11. e5 Nd7 12. Bxe7 Kxe7 13. f4 Qb6+ 14. Kh1 Qxb2 15. Qe1 Qb8 16. Qh4+ Ke8 17. Qg5 g6 18. Qh6 Bb7 19. Qg7 Ke7 20. Rab1 Qc7 21. f5 Rag8 22. f6+ Ke8 23. Qh6 Nxe5 24. Qf4 Kd7 25. Rxb7 Qxb7 26. Qxe5 Rb8 27. h3 Qc8 28. Qd4 c5 29. Qa4+ Qc6 30. Bxa6 Qxa4 31. Nxa4 c4 32. Nc3 Rb2 33. Rf2 Kd6 34. a4 Kc5 35. Bb5 d4 36. Ne4+ Kd5 37. Ng5 d3 38. Bxc4+ Kxc4 39. cxd3+ Kb3 40. Rxb2+ Kxb2 41. Nxf7 Rf8 42. Ng5 h6 43. Ne4 Kc2 44. d4 Kd3 45. Nc5+ Ke3 46. Nd7 Rf7 47. Ne5 Rf8 48. Nd7 1/2-1/2

[Event "DDR corr"]
[Site "DDR"]
[Date "1988.??.??"]
[Round "?"]
[White "Katz, K."]
[Black "Etzold, Walter"]
[Result "1/2-1/2"]
[ECO "C18"]
[PlyCount "121"]
[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 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 Ne7 7. Nf3 Bd7 8. h4 Qa5 9. Bd2 Nbc6 10. h5 h6 11. Rb1 Qc7 12. Bd3 c4 13. Be2 0-0-0 14. Nh4 g5 15. hxg6 fxg6 16. Nf3 g5 17. Nh2 Nf5 18. Ng4 Rdf8 19. Nf6 Be8 20. Qc1 Bg6 21. Qb2 b6 22. g3 Kb7 23. a4 Ka8 24. Rh3 Qc8 25. Qb5 Nfxd4 26. cxd4 Nxd4 27. Qb2 Nxc2+ 28. Kf1 Nd4 29. Qxd4 Bxb1 30. Bf3 Qc6 31. Bb4 Rd8 32. Bd6 a5 33. Kg2 Ka7 34. Bg4 Rxd6 35. exd6 Qxd6 36. Rh1 Bg6 37. Nd7 Rh7 38. Ne5 Bc2 39. Nxc4 Qb4 40. Ne5 Qxd4 41. Nc6+ Kb7 42. Nxd4 Bxa4 43. Bxe6 Kc7 44. Bf5 Rh8 45. Ne6+ Kd6 46. Nxg5 Kc5 47. Nf7 Rf8 48. Nxh6 Bb3 49. Be6 a4 50. g4 b5 51. g5 Kb4 52. g6 Rf6 53. Bf7 d4 54. Rh3 Bc4 55. g7 Rxf7 56. g8Q Rxf2+ 57. Kxf2 Bxg8 58. Nxg8 a3 59. Ne7 a2 60. Nc6+ Ka4 61. Rh1 1/2-1/2

[Event "DDR-CupT8 corr"]
[Site "DDR"]
[Date "1988.??.??"]
[Round "?"]
[White "Katz, K."]
[Black "Schoenfeld, Walter"]
[Result "1-0"]
[ECO "C50"]
[PlyCount "37"]
[EventDate "1988.??.??"]
[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 e5 2. Nf3 Nc6 3. Bc4 Nd4 4. Nxd4 exd4 5. c3 dxc3 6. Nxc3 d6 7. d4 Nf6 8. Qb3 Qd7 9. 0-0 c6 10. Re1 Nh5 11. a4 g6 12. e5 d5 13. Nxd5 Bb4 14. Qxb4 b5 15. Nf6+ Nxf6 16. exf6+ Kd8 17. Re7 Qxd4 18. Be3 Qxf6 19. Bg5 1-0

[Event "DDR-chT corr"]
[Site "DDR"]
[Date "1988.??.??"]
[Round "?"]
[White "Kotte, A."]
[Black "Katz, K."]
[Result "1/2-1/2"]
[ECO "B14"]
[PlyCount "94"]
[EventDate "1988.??.??"]
[EventType "team (corr)"]
[EventRounds "2"]
[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. exd5 cxd5 4. c4 Nf6 5. Nc3 e6 6. Nf3 Bb4 7. a3 Bxc3+ 8. bxc3 Qc7 9. cxd5 exd5 10. Qc2 Ne4 11. Bb2 0-0 12. Bd3 Re8 13. 0-0 Nd7 14. Rae1 Ndf6 15. c4 Be6 16. Ne5 b6 17. f3 Nd6 18. c5 bxc5 19. dxc5 Nc4 20. Bd4 Nxa3 21. Qa4 Nc4 22. Nxc4 dxc4 23. Bxc4 Qf4 24. Bxe6 fxe6 25. g3 Qd2 26. Rd1 Qg5 27. Rde1 Nd5 28. Re5 Qd2 29. Rfe1 Kf7 30. Rxe6 Qxe1+ 31. Rxe1 Rxe1+ 32. Kf2 Re6 33. Qd7+ Ne7 34. Bxg7 a5 35. f4 Rea6 36. Ba1 a4 37. Qh3 h6 38. Qh5+ Kf8 39. g4 a3 40. g5 hxg5 41. Qxg5 Rg6 42. Qe5 Raa6 43. f5 Rgf6 44. Qb8+ Kf7 45. Bxf6 Rxf6 46. Qb3+ Kg7 47. Qxa3 Nxf5 1/2-1/2

[Event "DDR-Cup corr"]
[Site "DDR"]
[Date "1988.??.??"]
[Round "?"]
[White "Petzold"]
[Black "Katz, K."]
[Result "1/2-1/2"]
[ECO "B17"]
[PlyCount "131"]
[EventDate "1988.??.??"]
[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 Nbd7 11. 0-0 Nxc5 12. Bc2 Be7 13. Re1 0-0 14. Ne5 b6 15. Qe2 Ba6 16. c4 Ncd7 17. Nxd7 Nxd7 18. b3 Bb7 19. Nh5 Qc6 20. Qg4 g6 21. Be4 Qc8 22. Bxb7 Qxb7 23. Bb2 b5 24. Qf4 e5 25. Bxe5 Nxe5 26. Qxe5 gxh5 27. Qxe7 Qxe7 28. Rxe7 bxc4 29. bxc4 Rfc8 30. Rc1 Rc5 31. g3 a5 32. Rd1 Rxc4 33. Rdd7 Rf8 34. Re5 Ra4 35. Rg5+ Kh8 36. Rxh5 Rxa2 37. Rd4 Rg8 38. h4 a4 39. Rd7 Rf8 40. Ra5 Kg7 41. Raa7 a3 42. Kg2 Ra1 43. Kf3 Kg8 44. Rd4 Kg7 45. Rg4+ Kh8 46. Rf4 Kg7 47. Kg4 Kg6 48. Ra6+ Kg7 49. Kh5 a2 50. Rg4+ Kh8 51. Rg5 Rb8 52. Kh6 Rab1 53. Rxa2 R1b6+ 54. Kh5 Rb5 55. Ra7 Rxg5+ 56. Kxg5 Kg7 57. f4 Rb5+ 58. f5 h6+ 59. Kg4 Rb4+ 60. Kh5 Rb5 61. g4 Rb6 62. g5 hxg5 63. hxg5 Kg8 64. Kg4 Rb4+ 65. Kf3 Rc4 66. Rd7 1/2-1/2

[Event "DDR-CupT8 corr"]
[Site "DDR"]
[Date "1988.??.??"]
[Round "?"]
[White "Zugehoer, Erik"]
[Black "Katz, K."]
[Result "1/2-1/2"]
[ECO "D85"]
[PlyCount "76"]
[EventDate "1988.??.??"]
[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 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Nf3 c5 8. Rb1 0-0 9. Be2 cxd4 10. cxd4 Qa5+ 11. Qd2 Qxd2+ 12. Bxd2 b6 13. 0-0 e6 14. Rfc1 Bb7 15. Bd3 Na6 16. a4 Rfd8 17. Bg5 Rd7 18. a5 bxa5 19. Rxb7 Rxb7 20. Bxa6 Rb6 21. Bd3 Rb3 22. Bc4 Rb2 23. d5 exd5 24. exd5 Bf8 25. Nd4 h6 26. Be3 a4 27. Nc6 a3 28. Bd4 Rb7 29. Be5 Rd7 30. f4 Rc8 31. Ba2 Kh7 32. Rc3 Rb7 33. Rc4 Rb5 34. d6 Bxd6 35. Bxd6 Rb2 36. Nb4 Rd8 37. Rc7 Rxd6 38. Rxf7+ Kh8 1/2-1/2

[Event "DDR-Cup10 sf corr"]
[Site "DDR"]
[Date "1987.??.??"]
[Round "?"]
[White "Katz, K."]
[Black "Schumann, Thorsten"]
[Result "1/2-1/2"]
[ECO "A00"]
[PlyCount "59"]
[EventDate "1987.??.??"]
[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. g4 d5 2. Bg2 e5 3. c4 c6 4. cxd5 cxd5 5. Qb3 Ne7 6. Nc3 Nbc6 7. Nxd5 Nd4 8. Qc4 Nxd5 9. Bxd5 b5 10. Bxf7+ Ke7 11. Qd5 Qc7 12. Qxa8 Kxf7 13. Qd5+ Be6 14. Qe4 Nc2+ 15. Kd1 Nxa1 16. Qb1 Nb3 17. axb3 Bxb3+ 18. Ke1 Be7 19. d3 Qa5+ 20. Kf1 Rc8 21. Be3 Rc2 22. Nf3 Qc7 23. d4 e4 24. Ne1 Rxe2 25. Qxe4 Rxb2 26. Qxh7 Qb7 27. Qf5+ Kg8 28. f3 Bc4+ 29. Kg1 Re2 30. Bf2 1/2-1/2

[Event "DDR corr"]
[Site "DDR"]
[Date "1987.??.??"]
[Round "?"]
[White "Schulz, K."]
[Black "Katz, K."]
[Result "1-0"]
[ECO "E69"]
[PlyCount "43"]
[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. c4 Nf6 2. Nc3 g6 3. g3 Bg7 4. Bg2 0-0 5. d4 d6 6. Nf3 Nbd7 7. 0-0 e5 8. e4 c6 9. h3 Qb6 10. Re1 exd4 11. Nxd4 Re8 12. Re2 Nxe4 13. Nxe4 Bxd4 14. Bf4 d5 15. cxd5 cxd5 16. Nd6 Rxe2 17. Qxe2 Nf6 18. Bxd5 Bxf2+ 19. Kh2 Bd4 20. Bxf7+ Kg7 21. Bb3 Bd7 22. Qe7+ 1-0

[Event "DDR-Cup corr"]
[Site "DDR"]
[Date "1982.??.??"]
[Round "?"]
[White "Hartewig, H."]
[Black "Katz, K."]
[Result "0-1"]
[ECO "A82"]
[PlyCount "86"]
[EventDate "1982.??.??"]
[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 f5 2. e4 fxe4 3. Nc3 Nf6 4. f3 exf3 5. Nxf3 g6 6. Bf4 Bg7 7. Qd2 0-0 8. 0-0-0 d5 9. Ne5 Nbd7 10. Kb1 c6 11. Be2 Nxe5 12. Bxe5 Nd7 13. Bxg7 Kxg7 14. h4 e5 15. h5 Rh8 16. h6+ Kf7 17. dxe5 Nxe5 18. Qd4 Re8 19. Ne4 Bf5 20. Ng3 Bd7 21. Rhf1+ Kg8 22. Ne4 dxe4 23. Bc4+ Kh8 24. Bf7 Bf5 25. Qc3 Qe7 26. Bxe8 Rxe8 27. Qg3 Ng4 28. Rh1 e3 29. Rde1 Qe5 30. Qh4 e2 31. a3 Bxc2+ 32. Ka1 Bf5 33. g3 Qf6 34. Qxf6+ Nxf6 35. b3 Re3 36. Rh2 Bg4 37. Rf2 Ng8 38. Kb2 Nxh6 39. Rf4 Rxg3 40. Re4 Rd3 41. Kc2 Rd1 42. R1xe2 Bxe2 43. Rxe2 Rd7 0-1

[Event "DDR corr"]
[Site "DDR"]
[Date "1982.??.??"]
[Round "?"]
[White "Katz, K."]
[Black "Fluegge, Gerd"]
[Result "1/2-1/2"]
[ECO "D67"]
[PlyCount "74"]
[EventDate "1982.??.??"]
[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 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 0-0 6. Nf3 Nbd7 7. Rc1 c6 8. Bd3 dxc4 9. Bxc4 Nd5 10. Bxe7 Qxe7 11. Ne4 N5f6 12. Ng3 b5 13. Bd3 Bb7 14. 0-0 a6 15. Ne4 Nxe4 16. Bxe4 Rac8 17. Qc2 f5 18. Bd3 c5 19. Qe2 c4 20. Bb1 e5 21. dxe5 Bxf3 22. gxf3 Qg5+ 23. Kh1 Qh5 24. Qd1 Nxe5 25. Qd5+ Nf7 26. Qxf5 Qxf5 27. Bxf5 Rc5 28. Be6 Re8 29. Bxf7+ Kxf7 30. Rfd1 b4 31. Rd4 Rec8 32. Kg2 a5 33. Kf1 R8c7 34. Ke2 Ke6 35. f4 g6 36. e4 Rc8 37. Ke3 R8c7 1/2-1/2

[Event "DDR-Cup corr"]
[Site "DDR"]
[Date "1981.??.??"]
[Round "?"]
[White "Nitzsche, Peter"]
[Black "Katz, K."]
[Result "1-0"]
[ECO "A92"]
[PlyCount "65"]
[EventDate "1981.??.??"]
[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 f5 2. d4 Nf6 3. c4 e6 4. g3 Be7 5. Bg2 d5 6. 0-0 0-0 7. Qc2 c6 8. Nbd2 a5 9. b3 Qe8 10. Ne5 Nbd7 11. Bb2 Bd6 12. a4 g5 13. cxd5 exd5 14. f4 g4 15. Ba3 Bxa3 16. Rxa3 Nh5 17. e4 dxe4 18. Nxe4 fxe4 19. Bxe4 Nhf6 20. Bg2 Nb6 21. Raa1 Qd8 22. Qd2 Be6 23. f5 Bxb3 24. Qg5+ Kh8 25. Rf4 Bf7 26. Raf1 Nfd5 27. f6 Nxf6 28. Qxf6+ Qxf6 29. Rxf6 Kg8 30. Rxf7 Rxf7 31. Rxf7 Rb8 32. Be4 Nxa4 33. Bxh7+ 1-0

[Event "FRG-ch M corr"]
[Site "GER corr"]
[Date "1980.??.??"]
[Round "?"]
[White "Turzer, Wolfgang"]
[Black "Katz, K."]
[Result "1-0"]
[ECO "B22"]
[PlyCount "37"]
[EventDate "1980.??.??"]
[EventType "tourn (corr)"]
[EventRounds "9"]
[EventCountry "GER"]
[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 cxd4 6. cxd4 e5 7. Nc3 Bb4 8. Bd2 Bxc3 9. Bxc3 e4 10. Ne5 Nxe5 11. dxe5 Ne7 12. Be2 e3 13. 0-0 exf2+ 14. Rxf2 Bd7 15. Bf3 Qxd1+ 16. Rxd1 0-0-0 17. Bxb7+ Kxb7 18. Rxf7 Rhe8 19. Bb4 1-0

[Event "FRG corr"]
[Site "GER corr"]
[Date "1977.??.??"]
[Round "?"]
[White "Katz, K."]
[Black "Richter"]
[Result "0-1"]
[ECO "B19"]
[PlyCount "58"]
[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. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. h4 h6 7. h5 Bh7 8. Nf3 Nd7 9. Bd3 Bxd3 10. Qxd3 Qc7 11. Bd2 e6 12. Qe2 Ngf6 13. 0-0-0 0-0-0 14. Ne5 Nb6 15. Ba5 Rd5 16. Bxb6 axb6 17. c4 Ra5 18. Kb1 Bd6 19. f4 Rd8 20. Rd2 Qe7 21. Rhd1 Kc7 22. Ne4 Bb4 23. Rd3 Rda8 24. a3 Bxa3 25. bxa3 Rxa3 26. Rxa3 Qxa3 27. Qf3 Qb4+ 28. Kc2 Ra2+ 29. Kd3 Ra3+ 0-1

