[Event "Porz op 25th"]
[Site "Cologne"]
[Date "1990.??.??"]
[Round "?"]
[White "Machenbach, Armin"]
[Black "Bednorz, Andreas"]
[Result "1/2-1/2"]
[ECO "C02"]
[PlyCount "105"]
[EventDate "1990.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Qb6 5. Nf3 Bd7 6. Be2 Bb5 7. 0-0 Bxe2 8. Qxe2 Qa6 9. Qxa6 Nxa6 10. Be3 f6 11. Nbd2 Rc8 12. Nb3 c4 13. Nbd2 Ne7 14. Rfe1 Kf7 15. Nf1 Ng6 16. Bd2 Be7 17. Re2 Rhe8 18. Rae1 f5 19. Rb1 Nb8 20. Ne1 Nc6 21. f4 b5 22. h3 Nf8 23. g4 g6 24. Ne3 b4 25. Nf3 Rb8 26. Ree1 Rb6 27. cxb4 Nxb4 28. b3 Nd3 29. bxc4 Nxe1 30. Rxe1 dxc4 31. Nxc4 Rc6 32. Ne3 Rd8 33. gxf5 gxf5 34. d5 Rxd5 35. Nxd5 exd5 36. Be3 Ne6 37. Re2 Rc4 38. Kf2 Nxf4 39. Rd2 Nxh3+ 40. Kg2 Nf4+ 41. Bxf4 Rxf4 42. Rxd5 Ra4 43. Nd4 Ra3 44. e6+ Kg6 45. Nxf5 Kf6 46. Nxe7 Kxe7 47. Rd7+ Kxe6 48. Rxh7 Kd5 49. Rh4 Rxa2+ 50. Kf1 Rc2 51. Ke1 Kc6 52. Kd1 Rc5 53. Rh2 1/2-1/2

[Event "Porz op 25th"]
[Site "Cologne"]
[Date "1990.??.??"]
[Round "?"]
[White "Machenbach, Armin"]
[Black "Schaffarth, Peter"]
[Result "0-1"]
[ECO "B01"]
[BlackElo "2240"]
[PlyCount "44"]
[EventDate "1990.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Nf6 3. d4 Nxd5 4. c4 Nb6 5. Nc3 e5 6. Be3 exd4 7. Qxd4 Qxd4 8. Bxd4 Be6 9. Bxb6 axb6 10. a3 Nc6 11. Nf3 0-0-0 12. Be2 Nd4 13. Nxd4 Rxd4 14. Rd1 Bc5 15. 0-0 Rhd8 16. Rxd4 Bxd4 17. Rc1 Bxc3 18. Rxc3 Rd2 19. Kf1 Rxb2 20. Bf3 Rd2 21. Be4 Rd4 22. Bd3 Rxd3 0-1

[Event "Porz op 25th"]
[Site "Cologne"]
[Date "1990.??.??"]
[Round "?"]
[White "Schaefer, Juergen"]
[Black "Machenbach, Armin"]
[Result "1/2-1/2"]
[ECO "A00"]
[PlyCount "31"]
[EventDate "1990.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. b4 d5 2. Bb2 Bf5 3. Nf3 e6 4. b5 Nf6 5. g3 Nbd7 6. Bg2 Bd6 7. d4 c5 8. 0-0 cxd4 9. Nxd4 Bg6 10. c4 0-0 11. cxd5 e5 12. Nb3 h5 13. N1d2 Rc8 14. e4 h4 15. Rc1 Qe7 16. a4 1/2-1/2

[Event "Porz op"]
[Site "Cologne"]
[Date "1986.??.??"]
[Round "?"]
[White "Comp Mephisto Dallas 32"]
[Black "Machenbach, Armin"]
[Result "1/2-1/2"]
[ECO "E61"]
[PlyCount "84"]
[EventDate "1986.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 d6 3. c4 g6 4. Nc3 Bg7 5. Bg5 0-0 6. e3 c5 7. Bd3 cxd4 8. exd4 Bg4 9. 0-0 Nc6 10. h3 Bxf3 11. Qxf3 Nxd4 12. Qxb7 h6 13. Be3 Nd7 14. Be4 Rb8 15. Qxa7 Nc5 16. Rab1 f5 17. Bxd4 Bxd4 18. Bd5+ e6 19. Bf3 Nb3 20. Qa6 Rb6 21. Qa4 Nd2 22. Nb5 Be5 23. Rfd1 Nxb1 24. Rxb1 Qc8 25. b3 Ra6 26. Qb4 Rxa2 27. Nxd6 Qa6 28. Rd1 Ra1 29. c5 Rxd1+ 30. Bxd1 Qd3 31. Qe1 Bxd6 32. Qxe6+ Kg7 33. Qd7+ Kf6 34. Qxd6+ Qxd6 35. cxd6 Rd8 36. Kf1 Rxd6 37. Ke2 Ke5 38. Bc2 g5 39. g3 f4 40. Bd3 f3+ 41. Ke3 h5 42. b4 g4 1/2-1/2

