[Event "US Open-82"]
[Site "Palo Alto"]
[Date "1981.??.??"]
[Round "4"]
[White "Duckworth, William Mark"]
[Black "Marshall, T."]
[Result "1/2-1/2"]
[ECO "A01"]
[PlyCount "46"]
[EventDate "1981.08.02"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. b3 e5 2. Bb2 Nc6 3. e3 d5 4. Nf3 e4 5. Nd4 Nxd4 6. Bxd4 Nf6 7. Be2 Be7 8. d3 0-0 9. Nd2 Re8 10. Rc1 b6 11. 0-0 Bb7 12. c4 c5 13. Bxf6 Bxf6 14. cxd5 exd3 15. Bxd3 Qxd5 16. Nf3 Rad8 17. Be2 Qxd1 18. Rfxd1 Rxd1+ 19. Rxd1 Bxf3 20. Bxf3 Rd8 21. Kf1 Rxd1+ 22. Bxd1 Kf8 23. Ke2 Ke7 1/2-1/2

[Event "US Open-82"]
[Site "Palo Alto"]
[Date "1981.??.??"]
[Round "1"]
[White "Marshall, T."]
[Black "Frankle, Jon"]
[Result "1/2-1/2"]
[ECO "B77"]
[PlyCount "93"]
[EventDate "1981.08.02"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Nc3 g6 4. d4 cxd4 5. Nxd4 Bg7 6. Be3 Nf6 7. Bc4 0-0 8. Bb3 d6 9. f3 Bd7 10. Qd2 Nxd4 11. Bxd4 b5 12. Nd5 Nxd5 13. Bxg7 Kxg7 14. Bxd5 Rc8 15. c3 e6 16. Bb3 Qh4+ 17. Qf2 Qxf2+ 18. Kxf2 Rb8 19. Rhd1 Rb6 20. Rd2 Kf6 21. Rad1 Ke7 22. f4 Bc8 23. c4 bxc4 24. Bxc4 f5 25. e5 d5 26. Bd3 Bd7 27. Rc1 Rc8 28. Rxc8 Bxc8 29. Rc2 Kd7 30. Ke3 Bb7 31. g3 Rb4 32. h4 Bc6 33. b3 a5 34. Kd2 Bb5 35. Rc5 Bxd3 36. Kxd3 a4 37. Kc3 axb3 38. axb3 Re4 39. b4 Re3+ 40. Kc2 Rxg3 41. b5 Rf3 42. b6 Rxf4 43. Kb3 Rf1 44. Kb2 Rf4 45. Kb3 Rf1 46. Kb2 Rf4 47. Kb3 1/2-1/2

