[Event "HUN-ch U12 Girls"]
[Site "Paks"]
[Date "1996.??.??"]
[Round "1"]
[White "Futo, Zsofia"]
[Black "Koch, K."]
[Result "1-0"]
[ECO "D11"]
[PlyCount "75"]
[EventDate "1996.??.??"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "HUN"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. Nf3 d5 2. c4 c6 3. g3 Nf6 4. Bg2 Bf5 5. 0-0 e6 6. d4 dxc4 7. Nbd2 b5 8. Ne5 Qb6 9. Ndf3 Bd6 10. Bf4 0-0 11. Nxc4 Qd8 12. Nxd6 Bg6 13. Ne5 Qb6 14. Nxg6 hxg6 15. Ne4 Nd5 16. Nc5 Rd8 17. Qb3 Nd7 18. Nxd7 Rxd7 19. Rac1 Rad8 20. Rfd1 Nxf4 21. gxf4 Rxd4 22. Rxd4 Rxd4 23. Rxc6 Qb8 24. Qc2 Rd8 25. Rc7 Qb6 26. Qc5 Qa5 27. Qe7 Qe1+ 28. Bf1 Rf8 29. Rd7 Qa5 30. Rxa7 Qb6 31. e3 Qc6 32. Rd7 Qb6 33. Bd3 g5 34. Bg6 Qc6 35. Bxf7+ Kh7 36. Qxf8 Qxd7 37. Qg8+ Kh6 38. Qh8# 1-0

[Event "HUN-ch U12 Girls"]
[Site "Paks"]
[Date "1996.??.??"]
[Round "9"]
[White "Geczi, Gloria"]
[Black "Koch, K."]
[Result "1-0"]
[ECO "B01"]
[PlyCount "85"]
[EventDate "1996.??.??"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "HUN"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Nf6 3. d4 Nxd5 4. Nf3 Bg4 5. Be2 e6 6. 0-0 Be7 7. h3 Bh5 8. Re1 0-0 9. c3 c6 10. Nbd2 Nd7 11. Ne4 Qc7 12. Bg5 N7f6 13. Nxf6+ Bxf6 14. Bxf6 Nxf6 15. Ne5 Bxe2 16. Qxe2 Rfd8 17. Qf3 Qe7 18. a4 Nd7 19. Ng4 Qg5 20. Re2 Qd5 21. Qg3 Rac8 22. Ne3 Qh5 23. Kf1 e5 24. Rd1 exd4 25. Rxd4 Nf6 26. Rxd8+ Rxd8 27. Qc7 Re8 28. Qxb7 Qc5 29. Rd2 h6 30. Qc7 Qb6 31. Qxb6 axb6 32. Nc4 b5 33. Nb6 Rb8 34. a5 Rb7 35. Rd8+ Kh7 36. a6 Ra7 37. Ra8 Rc7 38. a7 Nd5 39. Rh8+ Kxh8 40. a8Q+ Kh7 41. Nxd5 cxd5 42. Qxd5 Ra7 43. Qxb5 1-0

[Event "HUN-ch U12 Girls"]
[Site "Paks"]
[Date "1996.??.??"]
[Round "5"]
[White "Kiss, Emese"]
[Black "Koch, K."]
[Result "1-0"]
[ECO "D52"]
[PlyCount "86"]
[EventDate "1996.??.??"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "HUN"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. c4 c6 4. Nc3 e6 5. Bg5 Nbd7 6. e3 Qa5 7. Qd2 dxc4 8. Bxc4 Bb4 9. Bxf6 Nxf6 10. Rc1 0-0 11. 0-0 c5 12. Qc2 Qc7 13. Be2 b6 14. a3 cxd4 15. Nxd4 Bd6 16. Ndb5 Qe7 17. Bf3 Rb8 18. Nxd6 Qxd6 19. Nb5 Qd7 20. Qc7 Ba6 21. Qxd7 Nxd7 22. Be2 Rfc8 23. Rxc8+ Rxc8 24. Nxa7 Bxe2 25. Nxc8 Bxf1 26. Kxf1 Kf8 27. Ke2 Ke8 28. f3 Kd8 29. Nd6 f6 30. Kd3 Kc7 31. Ne8+ Kc6 32. Nxg7 Nc5+ 33. Kc3 e5 34. b4 Na4+ 35. Kb3 b5 36. Ne8 f5 37. Ng7 f4 38. exf4 exf4 39. Ne6 Kd5 40. Nxf4+ Ke5 41. Nd3+ Kd4 42. Nc5 Nxc5+ 43. bxc5 Kxc5 1-0

[Event "HUN-ch U12 Girls"]
[Site "Paks"]
[Date "1996.??.??"]
[Round "6"]
[White "Koch, K."]
[Black "Gara, Ticia"]
[Result "0-1"]
[ECO "A45"]
[BlackElo "2005"]
[PlyCount "64"]
[EventDate "1996.??.??"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "HUN"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. d4 Nf6 2. Bg5 Ne4 3. Bf4 c5 4. f3 Qa5+ 5. c3 Nf6 6. e4 cxd4 7. Bxb8 dxc3 8. Nxc3 Rxb8 9. Bd3 g6 10. Nge2 Bg7 11. Qc2 Qc5 12. Rc1 0-0 13. Nd5 Qa5+ 14. Qc3 Qxc3+ 15. Ndxc3 d6 16. 0-0 Bd7 17. Nf4 Bh6 18. Nce2 e5 19. Nd5 Nxd5 20. Rcd1 Ne3 21. Rc1 Nxf1 22. Rc7 Bc6 23. Kxf1 Bg5 24. Rxc6 bxc6 25. b3 d5 26. exd5 cxd5 27. g3 Rfc8 28. f4 exf4 29. gxf4 Bf6 30. Ba6 Rc2 31. a3 Rxb3 32. Ng3 Rb1# 0-1

[Event "HUN-ch U12 Girls"]
[Site "Paks"]
[Date "1996.??.??"]
[Round "2"]
[White "Koch, K."]
[Black "Geczi, Mirjam"]
[Result "0-1"]
[ECO "A45"]
[PlyCount "72"]
[EventDate "1996.??.??"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "HUN"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. d4 Nf6 2. Bg5 e6 3. e4 Be7 4. Nc3 Nxe4 5. Bxe7 Nxc3 6. Bxd8 Nxd1 7. Bxc7 Nxb2 8. Bd6 Na4 9. g3 Nc6 10. Nf3 Nc3 11. Bd3 b6 12. Kd2 Nd5 13. Rhe1 Bb7 14. Be4 Nf6 15. Bf5 Ne7 16. Ng1 Nxf5 17. Be5 d6 18. Bxf6 gxf6 19. c3 Kd7 20. Ne2 e5 21. dxe5 fxe5 22. Rad1 Bf3 23. Kc2 Rac8 24. Rd2 Bxe2 25. Rdxe2 Nd4+ 26. Kb1 Nxe2 27. Rxe2 Rxc3 28. Kb2 Rhc8 29. Rd2 Ke6 30. Re2 f6 31. Re1 Rc2+ 32. Kb1 Rxf2 33. Rh1 Rcc2 34. h4 Rb2+ 35. Kc1 Rxa2 36. Rd1 Ra1# 0-1

[Event "HUN-ch U12 Girls"]
[Site "Paks"]
[Date "1996.??.??"]
[Round "4"]
[White "Koch, K."]
[Black "Holczer, Anett"]
[Result "0-1"]
[ECO "D00"]
[PlyCount "72"]
[EventDate "1996.??.??"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "HUN"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. d4 Nf6 2. Bg5 d5 3. Bxf6 exf6 4. e3 Nc6 5. c4 dxc4 6. Bxc4 Bd6 7. Nf3 0-0 8. 0-0 Bg4 9. Be2 Re8 10. Nc3 Qd7 11. Qc2 Bf5 12. e4 Bg6 13. Qb3 Bxe4 14. Nxe4 Rxe4 15. Qxb7 Rb8 16. Qa6 Nxd4 17. Nxd4 Rxd4 18. b3 Be5 19. Qxa7 Re8 20. Qa6 Rd6 21. Rad1 Rxa6 22. Rxd7 Rxa2 23. Bc4 Rf8 24. Rfd1 Bd6 25. g3 Bc5 26. Rxc7 Bxf2+ 27. Kf1 Be3 28. Rd3 Bb6 29. Rb7 Ba5 30. Ra7 Rc8 31. Rd5 Ra1+ 32. Kg2 Bc3 33. Rdd7 Rxa7 34. Bxf7+ Kf8 35. Rxa7 Bd4 36. Bc4 Bxa7 0-1

[Event "HUN-ch U12 Girls"]
[Site "Paks"]
[Date "1996.??.??"]
[Round "8"]
[White "Koch, K."]
[Black "Hum, E."]
[Result "0-1"]
[ECO "D00"]
[PlyCount "76"]
[EventDate "1996.??.??"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "HUN"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. d4 Nf6 2. Bg5 d5 3. Bxf6 exf6 4. e3 Bd6 5. c4 c6 6. Nc3 Be6 7. Bd3 0-0 8. Nge2 Nd7 9. 0-0 Qc7 10. Ng3 Rfe8 11. Rc1 dxc4 12. Be4 f5 13. d5 cxd5 14. Bxd5 a6 15. Qf3 Rab8 16. Kh1 g6 17. Rfd1 Bf8 18. Nge2 Bg7 19. Rd2 b5 20. Rcd1 Rbd8 21. Nf4 Ne5 22. Qe2 h6 23. Bxe6 Rxd2 24. Bxf7+ Qxf7 25. Qxd2 g5 26. Nfe2 Nd3 27. Nc1 Bxc3 28. bxc3 Rd8 29. Qc2 Nxf2+ 30. Kg1 Nxd1 31. Qe2 Nxe3 32. Qxe3 Rd1+ 33. Kf2 f4 34. Qe2 Rxc1 35. Qd2 Qa7+ 36. Kf3 Qe3+ 37. Qxe3 fxe3 38. Kxe3 Rxc3+ 0-1

[Event "HUN-ch U12 Girls"]
[Site "Paks"]
[Date "1996.??.??"]
[Round "3"]
[White "Medvegy, Judit"]
[Black "Koch, K."]
[Result "1-0"]
[ECO "B02"]
[PlyCount "107"]
[EventDate "1996.??.??"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "HUN"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Nf6 3. Nc3 Nxd5 4. Bc4 e6 5. Nf3 Be7 6. d3 0-0 7. 0-0 b6 8. Re1 Bb7 9. Bd2 Nd7 10. Qe2 N7f6 11. Rad1 c5 12. Bg5 Qc7 13. Bxd5 Nxd5 14. Nxd5 Bxd5 15. Bxe7 Qxe7 16. c4 Bb7 17. d4 Qd6 18. dxc5 Qxc5 19. b3 Rfd8 20. Ne5 Qc7 21. Qe3 Rd6 22. Qf4 Rxd1 23. Rxd1 f6 24. Nd3 Qc6 25. f3 Rd8 26. Qe3 e5 27. Qe2 Rd4 28. Nf2 Qc5 29. Rxd4 Qxd4 30. Qd1 Qxd1+ 31. Nxd1 e4 32. Kf2 Kf7 33. Nc3 exf3 34. gxf3 Ke6 35. Ke3 Ke5 36. b4 g5 37. a4 f5 38. Ne2 h5 39. f4+ gxf4+ 40. Nxf4 h4 41. Ng6+ Kf6 42. Nxh4 Kg5 43. Nf3+ Kg4 44. Ne5+ Kg5 45. c5 bxc5 46. bxc5 f4+ 47. Kf2 Kf5 48. Nd3 a5 49. Nb2 Bd5 50. Nd1 Kg4 51. Nc3 Bc6 52. Nb5 Kf5 53. Nd4+ Kf6 54. Nxc6 1-0

[Event "HUN-ch U12 Girls"]
[Site "Paks"]
[Date "1996.??.??"]
[Round "7"]
[White "Simon, Zsuzsanna"]
[Black "Koch, K."]
[Result "0-1"]
[ECO "B01"]
[PlyCount "78"]
[EventDate "1996.??.??"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "HUN"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Nf6 3. d4 Nxd5 4. c4 Nf6 5. Nf3 Bg4 6. Be2 e6 7. Nc3 Be7 8. 0-0 0-0 9. Be3 Nbd7 10. h3 Bf5 11. Qd2 Ne4 12. Nxe4 Bxe4 13. Rfd1 Nf6 14. Rac1 c6 15. Ng5 Bf5 16. Bd3 Bxd3 17. Qxd3 h6 18. Ne4 Qd7 19. d5 cxd5 20. cxd5 Nxd5 21. Nc3 Rfd8 22. Nxd5 Qxd5 23. Qxd5 Rxd5 24. Rxd5 exd5 25. Rc7 Bf6 26. Rxb7 d4 27. Bd2 a6 28. Rd7 Rc8 29. Rd6 Rc2 30. Bxh6 Rxb2 31. Bf4 Rxa2 32. Kf1 a5 33. g3 a4 34. Ra6 a3 35. Ke1 d3 36. Kf1 Bc3 37. Ra8+ Kh7 38. Rd8 Ra1+ 39. Kg2 a2 0-1

[Event "Dortmund op"]
[Site "Dortmund"]
[Date "1989.??.??"]
[Round "1"]
[White "Sziva, Erika"]
[Black "Koch, K."]
[Result "1-0"]
[ECO "B32"]
[WhiteElo "2265"]
[PlyCount "63"]
[EventDate "1989.03.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e5 5. Nb5 d6 6. c4 Be6 7. N1c3 a6 8. Na3 Be7 9. Bd3 Bg5 10. 0-0 Bxc1 11. Rxc1 Nf6 12. Nd5 0-0 13. Nc2 Nd7 14. Nce3 Nd4 15. Bb1 Kh8 16. f4 Rc8 17. Kh1 b5 18. b3 Nb6 19. Nxb6 Qxb6 20. f5 Bd7 21. Nd5 Qb7 22. f6 g6 23. Qd2 Bc6 24. Qh6 Rg8 25. Rc3 Bd7 26. Ne7 Rce8 27. Nxg8 Rxg8 28. Qd2 Be6 29. c5 b4 30. Rcc1 d5 31. c6 Qc7 32. Qxb4 1-0

[Event "Dortmund op"]
[Site "Dortmund"]
[Date "1988.??.??"]
[Round "?"]
[White "Koch, K."]
[Black "Kebbekus, Thomas"]
[Result "0-1"]
[ECO "C54"]
[PlyCount "82"]
[EventDate "1988.03.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "TD"]
[Source "ChessBase"]
[SourceDate "1994.03.01"]
[SourceVersion "1"]
[SourceVersionDate "1994.03.01"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. b4 Bb6 6. d3 d6 7. a4 a6 8. Qb3 0-0 9. 0-0 Qe7 10. a5 Ba7 11. Be3 Bxe3 12. fxe3 Ng4 13. Re1 Kh8 14. Nbd2 Nd8 15. Nf1 c6 16. Ng3 f5 17. Qd1 Nxe3 18. Rxe3 f4 19. Re1 fxg3 20. h3 Be6 21. Ra2 Rf4 22. Rd2 Qf6 23. Bxe6 Nxe6 24. d4 exd4 25. cxd4 Ng5 26. Nxg5 Qxg5 27. e5 d5 28. Rde2 Qh4 29. e6 Re8 30. Qd3 Rxd4 31. Qf5 Qf6 32. Qb1 Kg8 33. Qb3 Qh4 34. Qf3 Rf4 35. Qd3 Rxb4 36. Kh1 Rf4 37. Re3 Qf6 38. Rxg3 Rxe6 39. Rb1 Re7 40. Kh2 Qe5 41. Kh1 c5 0-1

[Event "Dortmund op"]
[Site "Dortmund"]
[Date "1988.??.??"]
[Round "?"]
[White "Koch, K."]
[Black "Roeschlau, Bernd"]
[Result "0-1"]
[ECO "B90"]
[BlackElo "2250"]
[PlyCount "80"]
[EventDate "1988.03.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "TD"]
[Source "ChessBase"]
[SourceDate "1994.03.01"]
[SourceVersion "1"]
[SourceVersionDate "1994.03.01"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e5 7. Nb3 Be6 8. Qd2 Be7 9. f3 0-0 10. 0-0-0 b5 11. Kb1 Qc7 12. g4 Rc8 13. h4 Nfd7 14. Qf2 b4 15. Nd5 Bxd5 16. exd5 a5 17. g5 a4 18. Nc1 a3 19. b3 Qc3 20. Nd3 Ra5 21. Qe1 Qxc2+ 22. Ka1 Qc3+ 23. Kb1 Rxd5 24. Qf2 Qc7 25. Rc1 Qb7 26. Rxc8+ Qxc8 27. Be2 Nc6 28. Rc1 Nc5 29. Ne1 Qf5+ 30. Ka1 Na5 31. Bc4 Nxc4 32. bxc4 b3 33. axb3 Nxb3+ 34. Ka2 Nxc1+ 35. Bxc1 Rc5 36. Bxa3 Rxc4 37. Qb2 Qe6 38. Ka1 Rc8 39. Qb7 Bf8 40. Nd3 Rc3 0-1

[Event "Dortmund op"]
[Site "Dortmund"]
[Date "1988.??.??"]
[Round "?"]
[White "Sandor, Tamas"]
[Black "Koch, K."]
[Result "0-1"]
[ECO "A46"]
[WhiteElo "2230"]
[PlyCount "72"]
[EventDate "1988.03.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "TD"]
[Source "ChessBase"]
[SourceDate "1994.03.01"]
[SourceVersion "1"]
[SourceVersionDate "1994.03.01"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 c5 3. g3 cxd4 4. Qxd4 Nc6 5. Qd1 g6 6. Bg2 Bg7 7. 0-0 0-0 8. c3 d6 9. Qa4 Bd7 10. Qh4 Re8 11. Na3 a6 12. Bg5 Rb8 13. Rad1 b5 14. Nc2 a5 15. Ncd4 Qc7 16. Rd3 Ne5 17. Nxe5 dxe5 18. Nb3 Bf5 19. e4 Be6 20. Re1 Rbd8 21. Rxd8 Rxd8 22. h3 a4 23. Nc1 b4 24. cxb4 Qc2 25. Re2 Rd1+ 26. Kh2 Qc8 27. a3 Rxc1 28. Bxc1 Qxc1 29. f4 exf4 30. gxf4 Nh5 31. Qf2 Bh6 32. Bf3 Qxf4+ 33. Kg2 Qe5 34. Rc2 Nf4+ 35. Kh1 Bg7 36. Rc5 Nd3 0-1

[Event "Dortmund op"]
[Site "Dortmund"]
[Date "1987.??.??"]
[Round "5"]
[White "Brass, J."]
[Black "Koch, K."]
[Result "0-1"]
[ECO "A60"]
[PlyCount "88"]
[EventDate "1987.04.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "TD"]
[Source "ChessBase"]
[SourceDate "1994.03.01"]
[SourceVersion "1"]
[SourceVersionDate "1994.03.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 e6 4. dxe6 fxe6 5. Nc3 d5 6. Bf4 Bd6 7. Bxd6 Qxd6 8. e3 0-0 9. Nf3 Nc6 10. Qc2 Ne5 11. Rd1 Kh8 12. Be2 Bd7 13. cxd5 exd5 14. Nxd5 Nxd5 15. e4 Nb4 16. Rxd6 Nxc2+ 17. Kd1 Rxf3 18. gxf3 Rd8 19. Rxd7 Rxd7+ 20. Kxc2 g5 21. Rd1 Rxd1 22. Kxd1 Kg7 23. Kd2 Kf6 24. Ke3 Ng6 25. Bc4 Nf4 26. h4 Ng2+ 27. Kd2 Nxh4 28. Be2 Ke5 29. Kc3 Ng2 30. Kc4 Nf4 31. Bf1 Kd6 32. a4 h5 33. a5 h4 34. e5+ Kc6 35. b3 b6 36. a6 b5+ 37. Kc3 h3 38. Bxh3 Nxh3 39. Kd3 Nxf2+ 40. Ke3 Kd5 41. Kxf2 Kxe5 42. Ke3 Kd5 43. Kd3 Ke5 44. Ke3 Kf5 0-1

[Event "Dortmund op"]
[Site "Dortmund"]
[Date "1987.??.??"]
[Round "11"]
[White "Falz, Roman"]
[Black "Koch, K."]
[Result "1/2-1/2"]
[ECO "A47"]
[PlyCount "68"]
[EventDate "1987.04.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "TD"]
[Source "ChessBase"]
[SourceDate "1994.03.01"]
[SourceVersion "1"]
[SourceVersionDate "1994.03.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. e3 e6 4. Nf3 b6 5. Be2 Bb7 6. 0-0 Be7 7. b3 d6 8. Bb2 Nbd7 9. Ng5 h6 10. Bf3 d5 11. Nh3 g5 12. dxc5 bxc5 13. cxd5 exd5 14. Nd2 Rg8 15. Be2 Qb6 16. Qc2 Kf8 17. Bd3 Qc6 18. Rfe1 g4 19. Nf4 Bd6 20. a4 a6 21. Bf1 Re8 22. Rac1 Rg5 23. Ba3 Nh5 24. Qh7 Bxf4 25. exf4 Rxe1 26. Rxe1 Nxf4 27. Qh8+ Rg8 28. Re8+ Kxe8 29. Qxg8+ Nf8 30. Qxg4 N8g6 31. Qg3 d4 32. Nc4 Qd5 33. Bc1 Ne6 34. Bxh6 Ke7 1/2-1/2

[Event "Dortmund op"]
[Site "Dortmund"]
[Date "1987.??.??"]
[Round "2"]
[White "Frowein, Helge"]
[Black "Koch, K."]
[Result "0-1"]
[ECO "A47"]
[PlyCount "84"]
[EventDate "1987.04.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "TD"]
[Source "ChessBase"]
[SourceDate "1994.03.01"]
[SourceVersion "1"]
[SourceVersionDate "1994.03.01"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 c5 3. c3 b6 4. e3 Bb7 5. Be2 e6 6. Nbd2 Be7 7. 0-0 0-0 8. Qc2 Nc6 9. Re1 Rc8 10. dxc5 Bxc5 11. Ne4 Be7 12. Ng3 d5 13. Bd2 Qc7 14. Bd3 Rfd8 15. a3 Ne5 16. Nxe5 Qxe5 17. Qb1 Ne4 18. Bxe4 dxe4 19. Qc2 Rd3 20. Rad1 Rcd8 21. c4 Qd6 22. Nf1 Bf6 23. Bb4 Rxd1 24. Bxd6 Rxe1 25. Bb4 Red1 26. g3 Bc6 27. Kg2 R1d3 28. Nd2 a5 29. Bxa5 bxa5 30. Nb1 Rb8 31. Nc3 Bxc3 32. bxc3 a4 33. Kh3 Rb3 34. f3 Kf8 35. fxe4 Bxe4 36. Qf2 e5 37. Qc2 f5 38. c5 Ke7 39. c6 Rdxc3 40. Qd2 Rxc6 41. g4 Rh6+ 42. Kg3 f4+ 0-1

[Event "Dortmund op"]
[Site "Dortmund"]
[Date "1987.??.??"]
[Round "7"]
[White "Kessler, Dietmar"]
[Black "Koch, K."]
[Result "1-0"]
[ECO "B25"]
[PlyCount "47"]
[EventDate "1987.04.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "TD"]
[Source "ChessBase"]
[SourceDate "1994.03.01"]
[SourceVersion "1"]
[SourceVersionDate "1994.03.01"]
[SourceQuality "1"]

1. g3 c5 2. Bg2 Nc6 3. d3 g6 4. e4 Bg7 5. Nc3 d6 6. f4 e6 7. Nf3 Nge7 8. 0-0 0-0 9. Bd2 Nd4 10. Nxd4 cxd4 11. Ne2 Nc6 12. Kh1 Qb6 13. Rb1 Qa6 14. b4 b5 15. Qc1 Bd7 16. c4 dxc3 17. Bxc3 Rfc8 18. Bxg7 Kxg7 19. Qb2+ Kg8 20. g4 f5 21. exf5 exf5 22. Bd5+ Kf8 23. Qf6+ Ke8 24. Bf7+ 1-0

[Event "Dortmund op"]
[Site "Dortmund"]
[Date "1987.??.??"]
[Round "4"]
[White "Klaschus, R."]
[Black "Koch, K."]
[Result "1-0"]
[ECO "A47"]
[PlyCount "67"]
[EventDate "1987.04.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "TD"]
[Source "ChessBase"]
[SourceDate "1994.03.01"]
[SourceVersion "1"]
[SourceVersionDate "1994.03.01"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 c5 3. e3 b6 4. g3 d5 5. c4 e6 6. Bg2 Bb7 7. Nc3 dxc4 8. 0-0 cxd4 9. exd4 Be7 10. Qa4+ Qd7 11. Qxc4 Qc6 12. Qb3 0-0 13. Bf4 Na6 14. Rac1 Rfd8 15. Rfe1 Rac8 16. a3 Ba8 17. Qa2 Qe8 18. Qb1 Nc7 19. Be5 Ncd5 20. Ng5 g6 21. Qd3 Nxc3 22. bxc3 Bxg2 23. Kxg2 Qc6+ 24. Nf3 Qc4 25. Qd2 Ng4 26. Qf4 Nxe5 27. Nxe5 Qd5+ 28. Kg1 Rf8 29. c4 Qd6 30. c5 bxc5 31. dxc5 Qb8 32. Qa4 Qc7 33. c6 Rfd8 34. Rb1 1-0

[Event "Dortmund op"]
[Site "Dortmund"]
[Date "1987.??.??"]
[Round "9"]
[White "Koch, K."]
[Black "Dewenter, Ulf"]
[Result "1/2-1/2"]
[ECO "C10"]
[PlyCount "40"]
[EventDate "1987.04.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "TD"]
[Source "ChessBase"]
[SourceDate "1994.03.01"]
[SourceVersion "1"]
[SourceVersionDate "1994.03.01"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Nc6 4. Nf3 Nf6 5. e5 Ne4 6. a3 Nxc3 7. bxc3 Na5 8. Bd3 Be7 9. 0-0 b6 10. Re1 c5 11. g3 c4 12. Bf1 Bd7 13. Nd2 0-0 14. Bh3 Nc6 15. f4 b5 16. Nf1 a5 17. Ne3 Rb8 18. f5 b4 19. axb4 axb4 20. fxe6 Bxe6 1/2-1/2

[Event "Dortmund op"]
[Site "Dortmund"]
[Date "1987.??.??"]
[Round "6"]
[White "Koch, K."]
[Black "Gast, G."]
[Result "1-0"]
[ECO "B01"]
[PlyCount "77"]
[EventDate "1987.04.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "TD"]
[Source "ChessBase"]
[SourceDate "1994.03.01"]
[SourceVersion "1"]
[SourceVersionDate "1994.03.01"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 c6 5. Bc4 Bf5 6. Nge2 e6 7. 0-0 Nf6 8. Ng3 Bg6 9. f4 Bd6 10. Qe2 Qc7 11. Nce4 Nxe4 12. Nxe4 Bxe4 13. Qxe4 Nd7 14. a3 Nf6 15. Qf3 0-0-0 16. b4 g5 17. Bb3 h5 18. c4 g4 19. Qc3 h4 20. d5 Ne4 21. Qe3 f5 22. Bb2 Rhe8 23. c5 Bf8 24. Be5 Qd7 25. d6 g3 26. h3 Bg7 27. a4 Nf6 28. Qd4 Qf7 29. b5 Nh5 30. bxc6 Bxe5 31. d7+ Rxd7 32. cxd7+ Qxd7 33. Qxe5 Ng7 34. c6 bxc6 35. Bc4 Kb7 36. Rfd1 Qe7 37. Rab1+ Ka8 38. Ba6 Rd8 39. Bb7+ 1-0

[Event "Dortmund op"]
[Site "Dortmund"]
[Date "1987.??.??"]
[Round "3"]
[White "Koch, K."]
[Black "Kluth, Carsten"]
[Result "0-1"]
[ECO "C49"]
[PlyCount "90"]
[EventDate "1987.04.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "TD"]
[Source "ChessBase"]
[SourceDate "1994.03.01"]
[SourceVersion "1"]
[SourceVersionDate "1994.03.01"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nc3 Nc6 4. Bb5 Bb4 5. 0-0 0-0 6. d3 Bxc3 7. bxc3 d6 8. Re1 Qe7 9. Qe2 Nd8 10. Bc4 Ne6 11. d4 Nd7 12. a4 Qf6 13. Qe3 h6 14. a5 Re8 15. Bb2 Ndf8 16. Bf1 Ng6 17. g3 Ng5 18. Nxg5 hxg5 19. Bc1 g4 20. Qg5 exd4 21. Qxf6 gxf6 22. cxd4 d5 23. f3 gxf3 24. Bd3 f5 25. e5 f6 26. Bf4 fxe5 27. dxe5 Be6 28. Rab1 b6 29. c3 Kf7 30. Bg5 Bd7 31. Bf6 f4 32. Kf2 fxg3+ 33. hxg3 Bg4 34. Rh1 Nxe5 35. Bxe5 Rxe5 36. Rh7+ Ke6 37. Rbh1 Kd6 38. R1h6+ Re6 39. Rh4 Rg8 40. Rxg4 Rxg4 41. Bf5 Rgg6 42. Bxg6 Rxg6 43. axb6 axb6 44. Rf7 Rg4 45. Rxf3 Rc4 0-1

[Event "Dortmund op"]
[Site "Dortmund"]
[Date "1987.??.??"]
[Round "8"]
[White "Koch, K."]
[Black "Schuetz, Ralf"]
[Result "0-1"]
[ECO "C89"]
[PlyCount "124"]
[EventDate "1987.04.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "TD"]
[Source "ChessBase"]
[SourceDate "1994.03.01"]
[SourceVersion "1"]
[SourceVersionDate "1994.03.01"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Re1 b5 7. Bb3 0-0 8. a4 Bb7 9. c3 d5 10. exd5 Nxd5 11. axb5 axb5 12. Rxa8 Bxa8 13. d4 exd4 14. Nxd4 Nxd4 15. Qxd4 c5 16. Qe4 Bf6 17. Bc2 g6 18. Qe2 Nc7 19. Rd1 Qe8 20. Qxe8 Rxe8 21. Be3 Ne6 22. Nd2 b4 23. cxb4 cxb4 24. Nc4 Rc8 25. b3 Rd8 26. Rxd8+ Bxd8 27. f3 Bf6 28. Kf2 Nd4 29. Bxd4 Bxd4+ 30. Ke2 f5 31. Kd3 Bc5 32. Na5 Bd5 33. Kd2 Kf7 34. Bd3 Kf6 35. Bc4 Ba8 36. Bg8 h5 37. Ke2 f4 38. Nc4 Bg1 39. h3 Bc5 40. Kd3 Kf5 41. Bf7 Kf6 42. Bg8 Kg5 43. Ke2 Kh4 44. Be6 Bb7 45. Ne5 g5 46. Kf1 Ba6+ 47. Bc4 Bc8 48. Nd3 Bd6 49. Nf2 Bf5 50. Ne4 Be5 51. Bd5 g4 52. hxg4 hxg4 53. Kf2 g3+ 54. Ke2 Kh5 55. Kd3 Bh3 56. Nxg3+ fxg3 57. f4 Bf5+ 58. Ke3 Bd6 59. Kf3 Kh4 60. Bf7 Bg4+ 61. Ke4 Bd7 62. Bd5 Kg4 0-1

[Event "Dortmund op"]
[Site "Dortmund"]
[Date "1987.??.??"]
[Round "1"]
[White "Koch, K."]
[Black "Wessendorf, Thomas"]
[Result "0-1"]
[ECO "B15"]
[BlackElo "2280"]
[PlyCount "50"]
[EventDate "1987.04.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "TD"]
[Source "ChessBase"]
[SourceDate "1994.03.01"]
[SourceVersion "1"]
[SourceVersionDate "1994.03.01"]
[SourceQuality "1"]

1. e4 g6 2. d4 Bg7 3. Nc3 c6 4. f4 d5 5. e5 h5 6. Nf3 Nh6 7. Be3 Bg4 8. Be2 e6 9. Qd2 Nd7 10. g3 Bf8 11. h3 Bxf3 12. Bxf3 Nf5 13. Bf2 c5 14. dxc5 Bxc5 15. Bxc5 Nxc5 16. Qf2 Qb6 17. 0-0 Nxg3 18. Rfd1 Rd8 19. Kh2 Nf5 20. Bxd5 exd5 21. Nxd5 Ne4 22. Qxb6 axb6 23. Nxb6 Nd2 24. c3 Ne3 25. Rdc1 h4 0-1

[Event "Dortmund op"]
[Site "Dortmund"]
[Date "1987.??.??"]
[Round "10"]
[White "Wiese, Thomas"]
[Black "Koch, K."]
[Result "1/2-1/2"]
[ECO "A64"]
[PlyCount "39"]
[EventDate "1987.04.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "TD"]
[Source "ChessBase"]
[SourceDate "1994.03.01"]
[SourceVersion "1"]
[SourceVersionDate "1994.03.01"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 c5 3. d5 e6 4. c4 exd5 5. cxd5 d6 6. Nc3 g6 7. g3 Bg7 8. Bg2 0-0 9. 0-0 Re8 10. Nd2 a6 11. a4 Nbd7 12. Re1 Rb8 13. Nc4 Nb6 14. Na3 Bd7 15. Bf4 Qc7 16. a5 Nc8 17. Nc4 b5 18. axb6 Rxb6 19. Nxb6 Qxb6 20. Qd2 1/2-1/2

