[Event "Berlin op"]
[Site "Berlin West"]
[Date "1978.12.27"]
[Round "3"]
[White "Korte, Markus"]
[Black "Oesterreich, Peter"]
[Result "1-0"]
[ECO "D93"]
[PlyCount "75"]
[EventDate "1978.12.25"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 g6 3. d4 d5 4. Nf3 Bg7 5. Qb3 c6 6. Bf4 0-0 7. e3 e6 8. Bd3 Nbd7 9. 0-0 dxc4 10. Bxc4 Nd5 11. Bg3 Nxc3 12. bxc3 Qe7 13. e4 b5 14. Bd3 a5 15. a4 b4 16. cxb4 axb4 17. Rab1 c5 18. dxc5 Qxc5 19. Qxb4 Qxb4 20. Rxb4 Nc5 21. Bb5 Ba6 22. Bd6 Rfc8 23. Rc1 Nd3 24. Rxc8+ Rxc8 25. Rb1 Bxb5 26. axb5 Bf8 27. e5 f6 28. b6 Bxd6 29. exd6 Nc5 30. Rc1 Ra8 31. Nd2 Nd7 32. b7 Ra2 33. Rc8+ Kf7 34. Rc7 Ke8 35. Rxd7 Kxd7 36. b8Q Rxd2 37. Qc7+ Ke8 38. Qe7# 1-0

[Event "Zehlendorf op"]
[Site "Berlin West"]
[Date "1973.12.28"]
[Round "?"]
[White "Taeger, Winfried"]
[Black "Oesterreich, Peter"]
[Result "0-1"]
[ECO "B77"]
[PlyCount "104"]
[EventDate "1973.12.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. Bc4 Bd7 8. f3 Nc6 9. Qd2 0-0 10. h4 Ne5 11. Bb3 Qa5 12. h5 Nxh5 13. g4 Nf6 14. Bh6 Bxh6 15. Qxh6 Rfc8 16. 0-0-0 Rxc3 17. g5 Nh5 18. Rxh5 gxh5 19. g6 Rxc2+ 20. Nxc2 Nxg6 21. f4 Bg4 22. f5 Ne5 23. f6 exf6 24. Rxd6 Rc8 25. Kb1 Qc5 26. Rd4 Qb6 27. Qe3 Rd8 28. Rxd8+ Qxd8 29. Bd5 b6 30. a3 Qc7 31. Qg3 Qc5 32. Qf4 Kg7 33. Qd2 Qg1+ 34. Ka2 Qd1 35. Qc3 Nd3 36. Ne3 Qe2 37. Nxg4 hxg4 38. Bc4 Qxb2+ 39. Qxb2 Nxb2 40. Kxb2 g3 41. Bf1 h5 42. Kc3 Kg6 43. Kd4 f5 44. e5 Kg5 45. Kd5 Kf4 46. Kd6 Ke3 47. Bg2 f4 48. Ke7 f3 49. Bxf3 Kxf3 50. Kxf7 g2 51. e6 g1Q 52. e7 Qe1 0-1

[Event "Zehlendorf op"]
[Site "Berlin West"]
[Date "1973.12.27"]
[Round "?"]
[White "Tauber, Richard"]
[Black "Oesterreich, Peter"]
[Result "1-0"]
[ECO "B72"]
[PlyCount "45"]
[EventDate "1973.12.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2 Bg7 7. Be3 0-0 8. h4 Nc6 9. h5 Nxd4 10. Bxd4 Qa5 11. hxg6 fxg6 12. Bc4+ Kh8 13. Qd2 Qb4 14. Bb3 e5 15. Be3 Nxe4 16. Nxe4 Qxe4 17. 0-0-0 Qc6 18. Rxh7+ Kxh7 19. Rh1+ Bh6 20. Bd5 Qe8 21. Bxh6 Rf5 22. Bf8+ Rh5 23. Qh6+ 1-0

