[Event "US Open-73"]
[Site "Atlantic City"]
[Date "1972.??.??"]
[Round "5"]
[White "Donnelly, Ruth A"]
[Black "Engnath, Richard R"]
[Result "1/2-1/2"]
[ECO "A56"]
[PlyCount "47"]
[EventDate "1972.08.13"]
[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 c5 3. d5 e5 4. Nc3 d6 5. e4 Be7 6. Bd3 0-0 7. Nge2 Nh5 8. 0-0 Bg5 9. f4 exf4 10. Nxf4 Nxf4 11. Bxf4 Bxf4 12. Rxf4 Qg5 13. Qd2 Nd7 14. Raf1 Qe7 15. Qc2 Ne5 16. Qb3 Bd7 17. g3 a6 18. a4 b6 19. Be2 Rab8 20. Ra1 h6 21. Raf1 Rfc8 22. Qc2 Rc7 23. Ra1 Be8 24. Raf1 1/2-1/2

[Event "US Open-73"]
[Site "Atlantic City"]
[Date "1972.??.??"]
[Round "4"]
[White "Engnath, Richard R"]
[Black "Carlson, A."]
[Result "1-0"]
[ECO "B42"]
[PlyCount "79"]
[EventDate "1972.08.13"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 b5 6. 0-0 Bb7 7. Qe2 Nc6 8. Nxc6 Bxc6 9. Be3 Qc7 10. Nd2 Be7 11. c4 bxc4 12. Nxc4 Nf6 13. Rac1 0-0 14. f3 d5 15. Nb6 Rab8 16. exd5 Rxb6 17. dxc6 Rxc6 18. Rxc6 Qxc6 19. Bxa6 Nd5 20. Rc1 Qa4 21. Bf2 Bg5 22. b3 Nf4 23. bxa4 Nxe2+ 24. Bxe2 Bxc1 25. a5 Bf4 26. a6 Bb8 27. a4 Rc8 28. Bb6 Bc7 29. a5 Kf8 30. a7 Bb8 31. axb8Q Rxb8 32. Bb5 Ke7 33. a6 Rxb6 34. a7 Rxb5 35. a8Q h5 36. Qa7+ Kf6 37. Qd4+ e5 38. Qd6+ Kg5 39. f4+ exf4 40. h4+ 1-0

[Event "US Open-73"]
[Site "Atlantic City"]
[Date "1972.??.??"]
[Round "6"]
[White "Engnath, Richard R"]
[Black "Merado, Martin S"]
[Result "1-0"]
[ECO "B89"]
[PlyCount "109"]
[EventDate "1972.08.13"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bc4 e6 7. Be3 Be7 8. Qe2 Qc7 9. 0-0-0 a6 10. f3 0-0 11. g4 Na5 12. Bb3 Nxb3+ 13. cxb3 b5 14. Kb1 b4 15. Na4 Nd7 16. Rc1 Nc5 17. Rhd1 Bd7 18. e5 Bxa4 19. bxa4 Qb7 20. exd6 Bxd6 21. b3 Be7 22. Rc4 Rac8 23. Rdc1 Qd7 24. Qd2 Rfd8 25. Nf5 exf5 26. Qxd7 Rxd7 27. Bxc5 Bxc5 28. Rxc5 Rxc5 29. Rxc5 g6 30. gxf5 gxf5 31. Kc2 Re7 32. Kd3 f4 33. Rc2 Re3+ 34. Kc4 Rxf3 35. Kxb4 Re3 36. Rf2 f3 37. Kc4 f5 38. b4 Kf7 39. b5 axb5+ 40. axb5 Ke6 41. Rd2 Re2 42. Kd3 Re5 43. a4 Re4 44. Ra2 f2 45. Rxf2 Rxa4 46. Rb2 f4 47. b6 Ra8 48. b7 Rb8 49. Ke4 f3 50. Kxf3 Rf8+ 51. Kg4 Rb8 52. Kg5 Kf7 53. Kh6 Kg8 54. h4 Kh8 55. Rc2 1-0

[Event "US Open-73"]
[Site "Atlantic City"]
[Date "1972.??.??"]
[Round "7"]
[White "Kramer, George Mortimer"]
[Black "Engnath, Richard R"]
[Result "1-0"]
[ECO "B02"]
[PlyCount "101"]
[EventDate "1972.08.13"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 Nf6 2. e5 Nd5 3. Nc3 Nxc3 4. bxc3 c5 5. f4 d5 6. Nf3 Nc6 7. Be2 e6 8. 0-0 Be7 9. d4 Qc7 10. Bd2 Bd7 11. a4 0-0-0 12. Kh1 c4 13. Bc1 h6 14. Ba3 Rdg8 15. Qd2 Bxa3 16. Rxa3 Be8 17. g3 Qe7 18. Raa1 Na5 19. Nh4 g6 20. Ng2 Bc6 21. Ne3 h5 22. h3 Qd7 23. Qc1 b6 24. Qa3 Kd8 25. Kg2 Nb7 26. Kf2 Qe7 27. Qxe7+ Kxe7 28. Rh1 Ra8 29. Bf3 Na5 30. g4 Rag8 31. gxh5 gxh5 32. Rhg1 Rxg1 33. Kxg1 f5 34. exf6+ Kxf6 35. Kf2 Rh7 36. f5 exf5 37. Nxd5+ Bxd5 38. Bxd5 Rd7 39. Bf3 h4 40. Rg1 Rg7 41. Rxg7 Kxg7 42. Ke3 Kf6 43. Kf4 a6 44. Bd5 b5 45. axb5 axb5 46. Bf3 Kg6 47. Ke5 Kg5 48. Ba8 Nb3 49. cxb3 cxb3 50. Bd5 b2 51. Ba2 1-0

