[Event "Cologne CC Christmas op"]
[Site "Cologne"]
[Date "1994.??.??"]
[Round "?"]
[White "Balduan, Karl Heinz"]
[Black "Mertes, Joachim"]
[Result "1-0"]
[ECO "C28"]
[PlyCount "115"]
[EventDate "1994.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Bc4 Bc5 3. Nc3 Nf6 4. d3 Nc6 5. Bg5 h6 6. Bh4 d6 7. Nd5 g5 8. Bg3 Nd4 9. c3 Ne6 10. b4 Bb6 11. a4 c6 12. Nxf6+ Qxf6 13. a5 Bc7 14. Qf3 Nf4 15. Bxf4 gxf4 16. g4 Rg8 17. h3 b6 18. Qd1 b5 19. Bb3 Ke7 20. d4 Bd7 21. d5 cxd5 22. Bxd5 Rac8 23. Nf3 Qg6 24. Nh4 Qf6 25. Nf5+ Bxf5 26. exf5 Bb8 27. Qd3 Rc7 28. 0-0 a6 29. c4 Rgc8 30. Rac1 Ba7 31. Rc2 Bd4 32. Rfc1 Qh4 33. Re1 f6 34. Qxd4 Qxh3 35. Qxf4 h5 36. Qg3 hxg4 37. Qxh3 gxh3 38. Kh2 bxc4 39. Be6 Rb8 40. Rxc4 Rxc4 41. Bxc4 Rxb4 42. Bxa6 Ra4 43. Kxh3 Rxa5 44. Bc8 d5 45. Be6 d4 46. Rd1 Ra8 47. Kg4 Kf8 48. f4 Ke7 49. fxe5 fxe5 50. Bc4 Kf6 51. Bd3 Ra7 52. Kf3 Kg5 53. Rg1+ Kf6 54. Rg6+ Kf7 55. Ke4 Re7 56. Bc4+ Ke8 57. f6 Rd7 58. Rg8# 1-0

[Event "Cologne CC Christmas op"]
[Site "Cologne"]
[Date "1994.??.??"]
[Round "?"]
[White "Mertes, Joachim"]
[Black "Azimi, Reza"]
[Result "0-1"]
[ECO "B30"]
[PlyCount "40"]
[EventDate "1994.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Bc4 e6 4. Nc3 a6 5. a3 b5 6. Ba2 c4 7. d3 d5 8. exd5 exd5 9. dxc4 dxc4 10. Qxd8+ Nxd8 11. 0-0 Bb7 12. Nh4 Ne6 13. Re1 Nf6 14. b4 g6 15. Ne2 Bg7 16. c3 0-0 17. Nd4 Nxd4 18. cxd4 Rad8 19. Re7 Rxd4 20. Rxb7 Rd1# 0-1

[Event "Cologne CC Christmas op"]
[Site "Cologne"]
[Date "1993.??.??"]
[Round "?"]
[White "Lueckerath, Kristiane"]
[Black "Mertes, Joachim"]
[Result "1-0"]
[ECO "D06"]
[PlyCount "47"]
[EventDate "1992.12.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 d5 3. cxd5 Nxd5 4. Nf3 Bf5 5. Nc3 e6 6. a3 Nc6 7. g3 Qd7 8. Bg2 Bg4 9. e4 Nf6 10. e5 Nxd4 11. Qxd4 Qxd4 12. Nxd4 Nd5 13. Nxd5 exd5 14. 0-0 0-0-0 15. Be3 a6 16. b4 h5 17. h3 Bd7 18. f4 h4 19. g4 c6 20. f5 Re8 21. Bf4 c5 22. Rfe1 b6 23. Bxd5 f6 24. e6 1-0

[Event "Cologne CC Christmas op"]
[Site "Cologne"]
[Date "1993.??.??"]
[Round "?"]
[White "Mertes, Joachim"]
[Black "Kruett, Michael"]
[Result "0-1"]
[ECO "B30"]
[PlyCount "42"]
[EventDate "1992.12.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Bc4 e6 3. Nc3 a6 4. a3 Nc6 5. Nf3 b5 6. Ba2 d6 7. 0-0 Nf6 8. d4 cxd4 9. Nxd4 Nxd4 10. Qxd4 Be7 11. h3 0-0 12. Qd3 Qc7 13. Qg3 Rd8 14. Bh6 Ne8 15. f4 Bf6 16. Rad1 g6 17. f5 Be5 18. fxg6 Bxg3 19. gxf7+ Qxf7 20. Rxf7 Kxf7 21. Rf1+ Nf6 0-1

