[Event "Southwest op U2000 65th"]
[Site "Houston"]
[Date "1999.09.06"]
[Round "5"]
[White "McGregor, Robert F"]
[Black "Agaian, Sarkis"]
[Result "0-1"]
[ECO "B01"]
[WhiteElo "1788"]
[BlackElo "1494"]
[PlyCount "58"]
[EventDate "1999.09.04"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "USA"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Nf6 3. d4 Nxd5 4. Nf3 Bg4 5. Be2 Nc6 6. c3 e6 7. 0-0 Bd6 8. Bg5 f6 9. Bh4 g5 10. Bg3 h5 11. Nbd2 h4 12. Bxd6 Qxd6 13. h3 Bf5 14. Nh2 0-0-0 15. Bg4 Rdg8 16. Re1 Bxg4 17. Nxg4 f5 18. Ne5 Nxe5 19. Rxe5 g4 20. Kh1 gxh3 21. gxh3 Qc6 22. Qf3 Rh6 23. Rg1 Rhg6 24. Rxg6 Rxg6 25. Nf1 Qb5 26. Qe2 Qe8 27. Rxf5 Qg8 28. Qf3 exf5 29. Qxf5+ Kb8 0-1

[Event "Southwest op U2000 65th"]
[Site "Houston"]
[Date "1999.09.06"]
[Round "6"]
[White "McGregor, Robert F"]
[Black "Carlson, Gary L"]
[Result "1/2-1/2"]
[ECO "C11"]
[WhiteElo "1788"]
[BlackElo "1701"]
[PlyCount "120"]
[EventDate "1999.09.04"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "USA"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. e5 Nfd7 5. Nf3 c5 6. Bb5 cxd4 7. Qxd4 a6 8. Bxd7+ Bxd7 9. 0-0 Nc6 10. Qg4 Qc7 11. Bf4 0-0-0 12. Rfe1 h6 13. a3 g5 14. Bg3 Be7 15. h4 h5 16. Qa4 gxh4 17. Nxh4 Bxh4 18. Qxh4 Rdg8 19. b4 Rh6 20. b5 Rg4 21. Qh3 Nd4 22. Re3 Nf5 23. Nxd5 exd5 24. e6 Nxg3 25. exd7+ Qxd7 26. Rxg3 axb5 27. Rxg4 Qxg4 28. Qxg4+ hxg4 29. Rb1 Rc6 30. Rxb5 Rxc2 31. Rxd5 Ra2 32. Rd3 Kc7 33. f4 gxf3 34. Rxf3 Kc6 35. Rd3 b5 36. Kh2 Kb6 37. Kh3 Ka5 38. Rb3 Ka4 39. Rb4+ Ka5 40. Rb3 Rc2 41. g4 Rc4 42. g5 Ka4 43. Rf3 Rc1 44. Kg4 Ra1 45. Rxf7 Rg1+ 46. Kf5 Kxa3 47. Ra7+ Kb3 48. g6 Rf1+ 49. Ke6 Re1+ 50. Kd5 Re8 51. g7 b4 52. Rf7 Rg8 53. Ke6 Kc2 54. Rc7+ Kb2 55. Kf7 Rd8 56. g8Q Rxg8 57. Kxg8 b3 58. Kf7 Ka1 59. Ra7+ Kb1 60. Ke6 b2 1/2-1/2

[Event "Southwest op U2000 65th"]
[Site "Houston"]
[Date "1999.09.05"]
[Round "4"]
[White "Parun, Bernard"]
[Black "McGregor, Robert F"]
[Result "1-0"]
[ECO "C73"]
[WhiteElo "1845"]
[BlackElo "1788"]
[PlyCount "93"]
[EventDate "1999.09.04"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "USA"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. Bxc6+ bxc6 6. d4 exd4 7. Nxd4 Bd7 8. Nc3 Be7 9. 0-0 Bf6 10. Qd3 Ne7 11. Bd2 0-0 12. Rae1 c5 13. Nde2 Ng6 14. f4 Bb5 15. Qf3 Bxe2 16. Qxe2 Bd4+ 17. Kh1 Rb8 18. b3 Qf6 19. Nd5 Qh4 20. Nxc7 Rb6 21. Nd5 Rb7 22. Qxa6 Rfb8 23. Qe2 Re8 24. c3 Bf6 25. Qa6 Rd7 26. Qb5 Rdd8 27. Qd3 Qg4 28. Nxf6+ gxf6 29. Qg3 Qxg3 30. hxg3 d5 31. exd5 Rxe1 32. Rxe1 Rxd5 33. Re2 f5 34. Kg1 Nf8 35. Kf2 Ne6 36. Be3 Rd3 37. Rc2 Kf8 38. Ke2 Rd7 39. Rd2 Ke7 40. Rxd7+ Kxd7 41. Kd3 Kc6 42. Kc4 h5 43. a4 f6 44. a5 Kd6 45. a6 Kc6 46. a7 Kb7 47. Bxc5 1-0

[Event "Southwest op U2000 65th"]
[Site "Houston"]
[Date "1999.09.04"]
[Round "2"]
[White "McGregor, Robert F"]
[Black "Green, Patrick A"]
[Result "1-0"]
[ECO "B20"]
[WhiteElo "1788"]
[BlackElo "1496"]
[PlyCount "141"]
[EventDate "1999.09.04"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "USA"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Ne2 Nc6 3. g3 e5 4. Bg2 Nf6 5. d3 Be7 6. 0-0 0-0 7. c3 d6 8. Nd2 Be6 9. h3 Qd7 10. Kh2 Rfd8 11. f4 Qc7 12. f5 Bc8 13. g4 h6 14. Ng3 d5 15. Qe2 b5 16. Nf3 d4 17. g5 hxg5 18. Bxg5 Nh7 19. h4 f6 20. Bd2 Bd7 21. h5 Kf7 22. Rh1 Rh8 23. Kg1 Rag8 24. Nh4 Nf8 25. Ng6 Nxg6 26. hxg6+ Ke8 27. Kf2 Bf8 28. Rh7 Rxh7 29. gxh7 Rh8 30. Qh5+ Kd8 31. Qf7 Ne7 32. Rh1 Be8 33. Qe6 Bd7 34. Qa6 Be8 35. cxd4 b4 36. d5 Qd7 37. a3 Nc8 38. axb4 cxb4 39. Qa5+ Qc7 40. Bxb4 Bxb4 41. Qxb4 Qc2+ 42. Ne2 Qxd3 43. Qc3 Qa6 44. b4 Nd6 45. Ra1 Qb6+ 46. Qc5 Nb5 47. Rh1 Nd6 48. Qxb6+ axb6 49. Nc3 g6 50. Rh6 gxf5 51. Rxf6 Ke7 52. Re6+ Kd7 53. exf5 Rxh7 54. Rxe5 Rh5 55. Ne4 Nxe4+ 56. Bxe4 Bf7 57. Bf3 Kd6 58. Bxh5 Kxe5 59. Bxf7 Kxf5 60. d6 Kf6 61. d7 Ke7 62. Be6 Kd8 63. Ke3 Kc7 64. Kd4 Kd8 65. Ke5 Kc7 66. Kf6 Kd8 67. b5 Kc7 68. Ke7 Kb7 69. d8Q Ka7 70. Qc7+ Ka8 71. Bd5# 1-0

[Event "Texas-chS"]
[Site "USA"]
[Date "1997.??.??"]
[Round "?"]
[White "Kiesewetter, Robert"]
[Black "McGregor, Robert F"]
[Result "0-1"]
[ECO "A80"]
[WhiteElo "1770"]
[BlackElo "1870"]
[PlyCount "57"]
[EventDate "1997.??.??"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "USA"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. d4 f5 2. Nf3 Nf6 3. e3 e6 4. Bd3 Be7 5. Nbd2 0-0 6. 0-0 b6 7. e4 fxe4 8. Nxe4 Bb7 9. Re1 Qe8 10. h3 Qh5 11. Ng3 Qe8 12. c3 a5 13. Qc2 Bxf3 14. gxf3 Bd6 15. Kg2 Qf7 16. Ne4 Qh5 17. Ng5 Nc6 18. f4 Ne7 19. Be2 Qh6 20. Rh1 Ned5 21. Bf3 c6 22. Be3 Bxf4 23. Bxf4 Nxf4+ 24. Kg3 Qxg5+ 25. Bg4 h5 26. f3 hxg4 27. hxg4 N4d5 28. Rae1 Qf4+ 29. Kg2 0-1

[Event "Texas op"]
[Site "San Antonio"]
[Date "1997.??.??"]
[Round "5"]
[White "Pierce, D."]
[Black "McGregor, Robert F"]
[Result "0-1"]
[ECO "A07"]
[PlyCount "42"]
[EventDate "1997.??.??"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "USA"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. Nf3 f5 2. g3 d5 3. d3 Nf6 4. Bg2 e6 5. Ne5 Bd6 6. f4 Nbd7 7. d4 0-0 8. a3 c5 9. c3 Ne4 10. Be3 Ndf6 11. Nd2 Bxe5 12. fxe5 Ng4 13. Bg1 Qg5 14. Nxe4 fxe4 15. Qd2 e3 16. Qc2 Nf2 17. Bxf2 Rxf2 18. Rg1 Bd7 19. 0-0-0 Be8 20. Bf3 Bg6 21. Qb3 Qf5 0-1

[Event "American op"]
[Site "Los Angeles"]
[Date "1995.??.??"]
[Round "6"]
[White "Howell, L."]
[Black "McGregor, Robert F"]
[Result "0-1"]
[ECO "C35"]
[PlyCount "88"]
[EventDate "1995.11.23"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "USA"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 e5 2. f4 exf4 3. Nf3 Be7 4. Bc4 Nf6 5. e5 Nh5 6. 0-0 0-0 7. d4 d5 8. Bd3 g6 9. Nc3 Nc6 10. Ne2 Bg4 11. c3 g5 12. Qc2 h6 13. Bd2 Qd7 14. Be1 Ng7 15. g3 Bh3 16. Bd2 Bxf1 17. Rxf1 Qh3 18. gxf4 f5 19. exf6 Bxf6 20. Ne5 Bxe5 21. dxe5 Nxe5 22. Bh7+ Kh8 23. Ng3 Ng4 24. Bc1 Rae8 25. Bd3 Ne3 26. Bxe3 Rxe3 27. fxg5 Rxf1+ 28. Bxf1 Qe6 29. gxh6 Qxh6 30. Qf2 Qb6 31. Qf8+ Kh7 32. Kh1 d4 33. Qf4 dxc3 34. bxc3 Rxc3 35. Ne4 Qc6 36. Qh4+ Kg8 37. Qd8+ Kf7 38. Bd3 Nf5 39. Kg1 Rc1+ 40. Kf2 Qb6+ 41. Kf3 Qe3+ 42. Kg4 Nh6+ 43. Kh5 Qh3+ 44. Kg5 Qg4+ 0-1

[Event "American op"]
[Site "Los Angeles"]
[Date "1995.??.??"]
[Round "1"]
[White "McGregor, Robert F"]
[Black "Boak, Stephen A"]
[Result "1-0"]
[ECO "B16"]
[PlyCount "78"]
[EventDate "1995.11.23"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "USA"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ gxf6 6. Bc4 Bf5 7. Ne2 e6 8. Ng3 Bg6 9. c3 Qc7 10. Qf3 Nd7 11. h4 h5 12. 0-0 0-0-0 13. a4 Bd6 14. a5 Rhe8 15. Be3 f5 16. Ne2 e5 17. g3 f4 18. gxf4 exd4 19. cxd4 Be4 20. Qh3 Rg8+ 21. Ng3 Bxf4 22. Kh2 Rg7 23. a6 Rdg8 24. Rg1 Kb8 25. axb7 Nf6 26. Be2 Ng4+ 27. Bxg4 Rxg4 28. Ra3 Bxe3 29. Rxe3 f5 30. f3 f4 31. fxg4 fxe3 32. g5 Qf4 33. Rf1 Qc7 34. Kg1 Kxb7 35. Nxe4 Re8 36. Qxe3 Qh7 37. Qb3+ Kc7 38. Rf7+ Qxf7 39. Qxf7+ Kd8 1-0

[Event "American op"]
[Site "Los Angeles"]
[Date "1995.??.??"]
[Round "3"]
[White "McGregor, Robert F"]
[Black "Sarmiento, Clein Alexander"]
[Result "1-0"]
[ECO "C34"]
[PlyCount "49"]
[EventDate "1995.11.23"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "USA"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 e5 2. f4 exf4 3. Nf3 Nc6 4. d4 d6 5. Bc4 g5 6. h4 Be7 7. 0-0 h6 8. Nc3 Bg4 9. Bb5 Qd7 10. d5 Bf6 11. dxc6 bxc6 12. Ba4 0-0-0 13. Qd3 Ne7 14. Nd5 Nxd5 15. exd5 Rdg8 16. Bxc6 Qe7 17. Re1 Be5 18. Qa6+ Kd8 19. Qxa7 gxh4 20. Nxe5 dxe5 21. Bxf4 f6 22. Qb8+ Bc8 23. d6 cxd6 24. Rad1 Qc7 25. Rxd6+ 1-0

[Event "American op"]
[Site "Los Angeles"]
[Date "1995.??.??"]
[Round "2"]
[White "Tuttle, Gary"]
[Black "McGregor, Robert F"]
[Result "1-0"]
[ECO "C35"]
[PlyCount "61"]
[EventDate "1995.11.23"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "USA"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 e5 2. f4 exf4 3. Nf3 Be7 4. d4 Bh4+ 5. Ke2 d5 6. e5 Bg4 7. Bxf4 Nc6 8. c3 Qe7 9. Kd2 Bf2 10. Bb5 0-0-0 11. Qa4 Bd7 12. Bxc6 Bxc6 13. Qxa7 f6 14. Rf1 g5 15. exf6 Nxf6 16. Ne5 b6 17. Nxc6 Ne4+ 18. Kc2 Qf7 19. Qb8+ Kd7 20. Ne5+ Ke8 21. Qxd8+ Kxd8 22. Nxf7+ Ke7 23. Nxh8 gxf4 24. Rxf2 Nxf2 25. Nd2 Ng4 26. Nf1 Kf6 27. Re1 Kg7 28. Re8 Nf6 29. Rc8 Ne4 30. Rxc7+ Kxh8 31. Rf7 1-0

[Event "USA Golden Knights corr"]
[Site "USA"]
[Date "1966.??.??"]
[Round "?"]
[White "McGregor, Robert F"]
[Black "Campbell, J Franklin"]
[Result "1-0"]
[ECO "C06"]
[PlyCount "37"]
[EventDate "1966.??.??"]
[EventType "tourn (corr)"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "Corr 2000"]
[Source "ChessBase"]
[SourceDate "2000.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 Nf6 4. e5 Nfd7 5. Bd3 c5 6. c3 Nc6 7. Ne2 Qb6 8. Nf3 g6 9. 0-0 cxd4 10. cxd4 Bg7 11. h4 0-0 12. h5 gxh5 13. Ng5 h6 14. Nh7 Rd8 15. Be3 Ne7 16. Nf4 Nf5 17. Qxh5 Nxe3 18. fxe3 Qb4 19. Nxd5 1-0

[Event "Fischer sim"]
[Site "Houston"]
[Date "1964.??.??"]
[Round "?"]
[White "Fischer, Robert James"]
[Black "McGregor, Robert F"]
[Result "1/2-1/2"]
[ECO "C40"]
[PlyCount "52"]
[EventDate "1964.??.??"]
[EventType "simul"]
[EventRounds "1"]
[EventCountry "USA"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 f6 3. Nxe5 Qe7 4. Nf3 d5 5. d3 dxe4 6. dxe4 Qxe4+ 7. Be2 Bf5 8. Nd4 Nc6 9. Nxf5 Qxf5 10. 0-0 Bd6 11. Bg4 Qb5 12. Nc3 Qc4 13. Be2 Qf7 14. Bb5 0-0-0 15. Qg4+ f5 16. Qh3 Nge7 17. Ne4 h6 18. Nxd6+ Rxd6 19. Bf4 Rd4 20. Be3 Rb4 21. Bxc6 Nxc6 22. b3 Re4 23. Rfd1 Rd8 24. Rxd8+ Nxd8 25. Rd1 Qe6 26. g3 Rxe3 1/2-1/2

[Event "US Open-57"]
[Site "Oklahoma"]
[Date "1956.??.??"]
[Round "6"]
[White "McGregor, Robert F"]
[Black "Byland, William"]
[Result "1/2-1/2"]
[ECO "A29"]
[PlyCount "51"]
[EventDate "1956.07.16"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 d5 3. cxd5 Nxd5 4. g3 e5 5. Bg2 Ne7 6. Nf3 Nbc6 7. 0-0 g6 8. b3 Bg7 9. Bb2 0-0 10. Qc2 Nd4 11. Nxd4 exd4 12. Na4 Bf5 13. d3 Nd5 14. Nc5 b6 15. Qc4 c6 16. Ne4 Ne7 17. Bc1 Be6 18. Qa6 Bd5 19. Bg5 f5 20. Nd2 Bxg2 21. Kxg2 Qd5+ 22. Nf3 Rfe8 23. Qc4 c5 24. Bxe7 Qxc4 25. bxc4 Rxe7 26. Ng1 1/2-1/2

[Event "US Open-57"]
[Site "Oklahoma"]
[Date "1956.??.??"]
[Round "2"]
[White "McGregor, Robert F"]
[Black "Popel, Stephan A"]
[Result "0-1"]
[ECO "A27"]
[PlyCount "56"]
[EventDate "1956.07.16"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 Nc6 3. Nf3 Bc5 4. e3 d6 5. d4 Bb6 6. h3 Nf6 7. d5 Ne7 8. Bd3 0-0 9. Qc2 Bd7 10. b4 c6 11. dxc6 bxc6 12. 0-0 Bc7 13. e4 Rc8 14. Be3 Bb8 15. Qb2 d5 16. exd5 cxd5 17. cxd5 Rxc3 18. Qxc3 e4 19. Bc4 exf3 20. Bc5 fxg2 21. Rfe1 Nexd5 22. Bxd5 Nxd5 23. Qf3 Qc7 24. Qxg2 Nf4 25. Qg3 Nxh3+ 26. Kg2 Qb7+ 27. Qf3 Nf4+ 28. Kg3 Ng6+ 0-1

[Event "US Open-57"]
[Site "Oklahoma"]
[Date "1956.??.??"]
[Round "12"]
[White "McGregor, Robert F"]
[Black "Shaw, Jack F"]
[Result "1/2-1/2"]
[ECO "A15"]
[PlyCount "44"]
[EventDate "1956.07.16"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. c4 Nf6 2. Nf3 g6 3. b3 Bg7 4. Bb2 0-0 5. g3 d6 6. Bg2 c6 7. 0-0 e5 8. d3 Nbd7 9. Nbd2 Qb6 10. Ne4 Ne8 11. Ba3 Qc7 12. Rc1 h6 13. Qd2 f5 14. Nc3 Rf7 15. e4 f4 16. Nh4 Kh7 17. Rc2 Nf8 18. Ne2 Ne6 19. Bb2 c5 20. Nc3 Qd8 21. Nd5 Bf6 22. Nf3 g5 1/2-1/2

[Event "US Open-57"]
[Site "Oklahoma"]
[Date "1956.??.??"]
[Round "10"]
[White "McGregor, Robert F"]
[Black "Tears, CF."]
[Result "0-1"]
[ECO "A80"]
[PlyCount "88"]
[EventDate "1956.07.16"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. d4 f5 2. Nc3 Nf6 3. f3 d6 4. Bg5 Nc6 5. Qd2 e5 6. d5 Nb4 7. e4 Be7 8. Bxf6 Bxf6 9. Bb5+ Bd7 10. Nh3 0-0 11. Bxd7 Qxd7 12. a3 Na6 13. Ng5 Nc5 14. b4 h6 15. Nh3 Na6 16. 0-0 Bh4 17. Nf2 f4 18. Qd3 Nb8 19. Ne2 Rf6 20. g4 fxg3 21. hxg3 Rg6 22. Kh2 Bf6 23. Ng4 Qf7 24. Nxf6+ Rxf6 25. f4 Nd7 26. Kg2 Rf8 27. f5 h5 28. Qf3 Rh6 29. Rh1 Nf6 30. Raf1 Ng4 31. Qd3 Qe7 32. Ng1 g6 33. Nf3 gxf5 34. Nh4 fxe4 35. Qxe4 Rhf6 36. Ng6 Rf2+ 37. Kh3 Qh7 38. Re1 R2f6 39. Nxf8 Qxe4 40. Rxe4 Nf2+ 41. Kh4 Nxe4 42. Ne6 Rf2 43. Nxc7 Rxc2 44. Re1 Rh2# 0-1

[Event "US Open-57"]
[Site "Oklahoma"]
[Date "1956.??.??"]
[Round "7"]
[White "Rozsa, Bela"]
[Black "McGregor, Robert F"]
[Result "1-0"]
[ECO "C27"]
[PlyCount "91"]
[EventDate "1956.07.16"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. e4 e5 2. Nc3 Nf6 3. Bc4 Nxe4 4. Qh5 Nd6 5. Bb3 Nc6 6. Nb5 g6 7. Qf3 f5 8. Qd5 Qf6 9. Nxc7+ Kd8 10. Nxa8 b5 11. Qf3 Bb7 12. h4 Nd4 13. Qh3 Bg7 14. c3 Ne6 15. d3 Bxa8 16. Ne2 h6 17. Be3 a5 18. Bb6+ Kc8 19. Bxa5 f4 20. Bxe6 dxe6 21. 0-0-0 Bxg2 22. Qxg2 f3 23. Qf1 fxe2 24. Qxe2 Qf4+ 25. Qe3 Qxe3+ 26. fxe3 Nf5 27. Rdg1 Kd7 28. Rxg6 h5 29. e4 Bh6+ 30. Kb1 Ne3 31. Re1 Ng4 32. Rf1 Bf4 33. Rg7+ Kd6 34. Bb4+ Kc6 35. Be7 Nh2 36. Rfg1 Nf3 37. R1g6 Rh6 38. Rxh6 Bxh6 39. Rh7 Bf4 40. Rxh5 Ne1 41. d4 exd4 42. cxd4 Nf3 43. d5+ exd5 44. exd5+ Kd7 45. Bb4 Bg3 46. Rh7+ 1-0

[Event "US Open-57"]
[Site "Oklahoma"]
[Date "1956.??.??"]
[Round "11"]
[White "Van Gelder, Spencer H"]
[Black "McGregor, Robert F"]
[Result "0-1"]
[ECO "A93"]
[PlyCount "80"]
[EventDate "1956.07.16"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. c4 f5 2. Nf3 Nf6 3. g3 e6 4. Bg2 Be7 5. 0-0 0-0 6. d4 d5 7. b3 c6 8. Nbd2 Ne4 9. Ne5 Nd7 10. Ndf3 Kh8 11. Nxd7 Bxd7 12. Ne5 g5 13. f3 Nd6 14. e4 f4 15. Qe2 Be8 16. Bh3 Bh5 17. Bxe6 dxe4 18. d5 exf3 19. Nxf3 fxg3 20. Bb2+ Bf6 21. hxg3 Ne4 22. Bxf6+ Qxf6 23. Qxe4 Bxf3 24. Qe3 h5 25. Rae1 g4 26. Qe5 Kg7 27. Qc7+ Kh6 28. Qe5 cxd5 29. cxd5 Qxe5 30. Rxe5 Rad8 31. Rc1 Rd6 32. Rc7 Rb6 33. Bc8 Rbf6 34. Rc1 b6 35. Rc6 Rxc6 36. dxc6 Rxc8 37. Re7 Rxc6 38. Rxa7 Kg5 39. b4 h4 40. a4 hxg3 0-1

