[Event "US Open-70"]
[Site "Lincoln"]
[Date "1969.08.14"]
[Round "5"]
[White "Colton, Doug"]
[Black "Dermer, Richard"]
[Result "1-0"]
[ECO "C60"]
[PlyCount "17"]
[EventDate "1969.08.10"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nge7 4. d4 exd4 5. Nxd4 Nxd4 6. Qxd4 c6 7. Bc4 d5 8. Bb3 dxe4 9. Bxf7+ 1-0

[Event "US Open-70"]
[Site "Lincoln"]
[Date "1969.08.11"]
[Round "2"]
[White "Dermer, Richard"]
[Black "Popel, Stephan A"]
[Result "0-1"]
[ECO "C11"]
[PlyCount "88"]
[EventDate "1969.08.10"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. e5 Nfd7 5. b3 c5 6. Bb5 cxd4 7. Qxd4 Nc6 8. Bxc6 bxc6 9. Bd2 Qb6 10. Qxb6 axb6 11. Na4 b5 12. Nb2 Nxe5 13. Ne2 Bd6 14. Nd4 Bd7 15. b4 f5 16. a4 Nf7 17. 0-0 e5 18. Nb3 Ke7 19. Rfe1 Be6 20. g3 g5 21. Nc5 e4 22. axb5 cxb5 23. Bc3 Be5 24. Bxe5 Nxe5 25. Kg2 h5 26. Ra5 Rxa5 27. bxa5 Ra8 28. Ra1 Nc6 29. a6 d4 30. f4 gxf4 31. gxf4 Bd5 32. Kh3 Kd6 33. Nb7+ Kc7 34. Kh4 Kb6 35. Kxh5 Rxa6 36. Rxa6+ Kxa6 37. Nd6 Be6 38. Kg5 Nb4 39. h4 e3 40. h5 e2 41. h6 e1Q 42. h7 Qg3+ 43. Kh6 Qxf4+ 44. Kg7 Qxd6 0-1

