[Event "US Open-74"]
[Site "Chicago"]
[Date "1973.??.??"]
[Round "1"]
[White "Singer, M."]
[Black "Thackrey, D."]
[Result "1-0"]
[ECO "E33"]
[PlyCount "97"]
[EventDate "1973.08.12"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 Nc6 5. Nf3 d6 6. Bg5 h6 7. Bxf6 Qxf6 8. e3 0-0 9. Bd3 e5 10. d5 Nb8 11. a3 Bxc3+ 12. Qxc3 b6 13. 0-0 Nd7 14. Bc2 Qe7 15. Nd2 f5 16. e4 f4 17. g3 Nf6 18. gxf4 exf4 19. Kh1 Ng4 20. Bd1 Ne5 21. Nf3 Bh3 22. Nxe5 Bxf1 23. Bg4 dxe5 24. Rxf1 Qf6 25. Bf5 Qd6 26. f3 Rae8 27. Rg1 Rf6 28. Qc1 Ref8 29. Qc2 Kh8 30. b4 Qe7 31. Rg4 a5 32. c5 axb4 33. axb4 Ra8 34. Rg1 Ra3 35. Rf1 bxc5 36. bxc5 Rfa6 37. Qb2 Ra8 38. Rb1 Qe8 39. d6 cxd6 40. cxd6 g6 41. d7 Qf7 42. Qxe5+ Kh7 43. Be6 Qg7 44. Qxf4 Ra1 45. Rxa1 Qxa1+ 46. Kg2 Qb2+ 47. Kh3 Qg7 48. Qc7 Qe7 49. d8Q 1-0

[Event "US Open-66"]
[Site "San Juan"]
[Date "1965.07.??"]
[Round "?"]
[White "Hoey, Chuck R"]
[Black "Thackrey, D."]
[Result "1-0"]
[ECO "D00"]
[PlyCount "25"]
[EventDate "1965.07.26"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. d4 Nf6 2. Nc3 d5 3. e4 Nxe4 4. Nxe4 dxe4 5. f3 e5 6. Be3 exf3 7. Nxf3 Bg4 8. Bc4 Qd7 9. 0-0 f6 10. Qe1 Bd6 11. dxe5 Bxf3 12. exd6 Qg4 13. Bf4+ 1-0

