[Event "US Open-70"]
[Site "Lincoln"]
[Date "1969.08.22"]
[Round "12"]
[White "Popel, Stephan A"]
[Black "Johnson, Roger B"]
[Result "1-0"]
[ECO "A17"]
[PlyCount "123"]
[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. Nf3 Nf6 2. c4 e6 3. Nc3 d5 4. e3 Be7 5. Qc2 Nbd7 6. Be2 c5 7. 0-0 dxc4 8. Bxc4 Nb6 9. Be2 0-0 10. Rd1 Bd7 11. d3 Qc7 12. e4 e5 13. h3 Rac8 14. Be3 Na8 15. Rac1 b6 16. a4 Rfe8 17. Nb5 Qb8 18. Bg5 h6 19. Bd2 Bf8 20. Bc3 a6 21. Na3 b5 22. axb5 axb5 23. Bd2 Nc7 24. Qb1 b4 25. Nc4 Nb5 26. b3 Bc6 27. Qb2 Nd7 28. Ra1 Qc7 29. Ra5 g6 30. Rda1 Bg7 31. Ne1 Nf8 32. Nc2 Ne6 33. Ra6 Nf4 34. Bf1 Rcd8 35. Ne1 Rb8 36. Qc1 Ne6 37. Bxh6 Ned4 38. Bxg7 Kxg7 39. Qb2 Re6 40. Nc2 Nxc2 41. Qxc2 Nd4 42. Qd1 Rh8 43. Ra7 Qd8 44. Qg4 Rh4 45. Qg3 Rh5 46. Nd2 Rg5 47. Qh2 Rf6 48. Rc1 Ne6 49. g4 Rf4 50. f3 Bb5 51. Qe2 Qb6 52. Re7 Bxd3 53. Rxe6 fxe6 54. Qe3 Bxf1 55. Kxf1 Qd6 56. Nc4 Qd4 57. Ke2 Kf6 58. Rd1 Qc3 59. Qxc3 bxc3 60. Ne3 Ke7 61. Rc1 Rf8 62. Rxc3 1-0

[Event "US Open-70"]
[Site "Lincoln"]
[Date "1969.08.21"]
[Round "11"]
[White "Johnson, Roger B"]
[Black "Bone, Eric Dale"]
[Result "1-0"]
[ECO "A05"]
[PlyCount "118"]
[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. Nf3 Nf6 2. g3 c5 3. Bg2 g6 4. b3 Bg7 5. Bb2 0-0 6. 0-0 d5 7. c4 d4 8. d3 Nc6 9. e4 dxe3 10. fxe3 Bh6 11. Re1 Ng4 12. Qd2 Nb4 13. Bf1 Nxe3 14. Rxe3 e5 15. a3 Bxe3+ 16. Qxe3 Nc2 17. Qxe5 f6 18. Qxc5 Nxa1 19. Bxa1 Bg4 20. Nbd2 Qd7 21. Kf2 b6 22. Qd4 Qf5 23. Qf4 Qh5 24. Ne4 Bxf3 25. Qxf3 Qxh2+ 26. Bg2 Qh6 27. Bc3 Rae8 28. Qf4 Qxf4+ 29. gxf4 Kg7 30. d4 g5 31. f5 Rd8 32. Bf3 h5 33. Bxh5 Rh8 34. Ng3 a6 35. Ke3 a5 36. d5 Rh6 37. Bd4 Rd6 38. b4 axb4 39. axb4 b5 40. Kd3 Rd8 41. cxb5 Rxd5 42. Kc4 Rd8 43. b6 Rc8+ 44. Kb5 Rb8 45. Bc5 Rhh8 46. Bd6 Rbd8 47. Kc6 Ra8 48. Be2 Rhc8+ 49. Kb5 Re8 50. b7 Rad8 51. Kc6 Rg8 52. Bc4 Rh8 53. Be6 Rh4 54. Bc7 Re8 55. b5 Rhh8 56. b6 Kh6 57. b8Q Rxb8 58. Bxb8 Rxb8 59. b7 g4 1-0

[Event "US Open-70"]
[Site "Lincoln"]
[Date "1969.08.20"]
[Round "10"]
[White "Williams, Lee V"]
[Black "Johnson, Roger B"]
[Result "0-1"]
[ECO "A01"]
[PlyCount "32"]
[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. b3 e5 2. e3 d6 3. Bb2 Nf6 4. f4 exf4 5. exf4 Be7 6. Nf3 0-0 7. Be2 Nd5 8. g3 Bh3 9. c4 Nxf4 10. d4 Nxe2 11. Qxe2 Bf6 12. Nbd2 g6 13. 0-0-0 Nc6 14. Ne4 Bg7 15. Nf2 Re8 16. Qd2 Bg2 0-1

[Event "US Open-70"]
[Site "Lincoln"]
[Date "1969.08.17"]
[Round "7"]
[White "Johnson, Roger B"]
[Black "Karklins, Andrew"]
[Result "0-1"]
[ECO "B10"]
[PlyCount "160"]
[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. Nf3 Nf6 2. g3 d6 3. Bg2 e5 4. d3 Be7 5. e4 0-0 6. 0-0 c6 7. c4 a6 8. a4 a5 9. Nc3 Na6 10. b3 Nd7 11. Ne1 Ndc5 12. Rb1 f5 13. Nc2 f4 14. gxf4 exf4 15. d4 Ne6 16. f3 Nb4 17. Nxb4 axb4 18. Ne2 g5 19. Kh1 Bf6 20. Bb2 Bg7 21. Qd2 h5 22. d5 Bxb2 23. Rxb2 Nc5 24. dxc6 bxc6 25. Rd1 Qf6 26. Qd4 Bd7 27. Qxf6 Rxf6 28. Nc1 Kf7 29. Nd3 Nxd3 30. Rxd3 Ke7 31. Rbd2 Ra5 32. Kg1 g4 33. Kf1 Rg5 34. Ra2 Bc8 35. Rdd2 Rfg6 36. Kf2 g3+ 37. Kg1 gxh2+ 38. Kxh2 h4 39. Bf1 h3 40. Rf2 Kd8 41. Bd3 Rg7 42. Rad2 Kc7 43. Bf1 R7g6 44. Rd4 Kb6 45. Rdd2 Rh6 46. Bd3 Rh8 47. Bf1 Kc7 48. Rd4 Rh6 49. Rd1 Rhg6 50. Rdd2 Rg7 51. Bd3 Kb6 52. Bf1 Kc5 53. Rc2 Kb6 54. Rcd2 Kc5 55. Ra2 Rg3 56. Rad2 Be6 57. Rc2 Bf7 58. Rcd2 Bh5 59. Rd3 Rg8 60. a5 Ra8 61. a6 Rxa6 62. Bxh3 Ra1 63. Bg2 Bg6 64. Rfd2 Ra3 65. Kg1 Bf7 66. Rxd6 Rxb3 67. Rf6 Bxc4 68. Rxf4 Rd3 69. Rb2 Rg5 70. Kf2 Rd1 71. Rf6 b3 72. f4 Rg7 73. e5 Kb4 74. Rxc6 Rxg2+ 75. Kxg2 Bd5+ 76. Kg3 Bxc6 77. f5 Kc3 78. e6 Kxb2 79. f6 Bd5 80. f7 Rf1 0-1

[Event "US Open-61"]
[Site "Saint Louis"]
[Date "1960.08.13"]
[Round "6"]
[White "Collins, John William"]
[Black "Johnson, Roger B"]
[Result "1-0"]
[ECO "A56"]
[PlyCount "39"]
[EventDate "1960.08.08"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 e5 4. Nc3 d6 5. e4 Na6 6. Bd3 h6 7. Nge2 g6 8. 0-0 Bd7 9. f4 exf4 10. Bxf4 Nh5 11. e5 Nxf4 12. Nxf4 Bf5 13. Bxf5 gxf5 14. e6 fxe6 15. dxe6 Qc7 16. Ncd5 Qg7 17. Qh5+ Kd8 18. e7+ Kd7 19. Qxf5+ Kc6 20. Ne6 1-0

[Event "US Open-61"]
[Site "Saint Louis"]
[Date "1960.08.09"]
[Round "2"]
[White "Johnson, Roger B"]
[Black "Brasket, Curt Justin"]
[Result "0-1"]
[ECO "A30"]
[PlyCount "72"]
[EventDate "1960.08.08"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. Nf3 f5 2. c4 c5 3. e3 Nf6 4. Qc2 e6 5. Be2 b6 6. b3 Bb7 7. d3 Be7 8. 0-0 Qc7 9. Bb2 Ng4 10. Nbd2 0-0 11. h3 Nf6 12. a3 Nc6 13. d4 Nd8 14. Bd3 Nf7 15. Ne5 Nd6 16. f3 Nde8 17. Be2 Nh5 18. g4 Ng3 19. Rf2 Nxe2+ 20. Rxe2 f4 21. exf4 Rxf4 22. dxc5 bxc5 23. Rf1 Rf8 24. Kg2 Nd6 25. Qd3 Rad8 26. Qe3 Nf7 27. Nxf7 Rxf7 28. Be5 Qc6 29. Ree1 Rdf8 30. Rc1 h6 31. Qe4 Bg5 32. Qg6 Bxd2 33. Rcd1 Qxf3+ 34. Rxf3 Bxf3+ 35. Kg3 Bxd1 36. Bd6 Be1+ 0-1

[Event "US Open-60"]
[Site "Omaha"]
[Date "1959.08.01"]
[Round "12"]
[White "Johnson, Roger B"]
[Black "Donovan, Jeremiah"]
[Result "0-1"]
[ECO "B86"]
[PlyCount "54"]
[EventDate "1959.07.20"]
[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 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. Bc4 Qc7 7. Bb3 a6 8. a4 Nc6 9. Be3 Bd7 10. Qe2 Be7 11. 0-0 0-0 12. f4 Na5 13. Ba2 Rac8 14. Rad1 Ne8 15. Rf3 Nc6 16. f5 Ne5 17. Rh3 Nc4 18. Bc1 Bf6 19. Kh1 g6 20. Rdd3 Ng7 21. Rh6 Bxd4 22. Rxd4 Ne5 23. Bf4 Qc5 24. Qd2 Ne8 25. Bg5 Ng4 26. Be7 e5 27. Bxd6 Qxd4 0-1

[Event "US Open-60"]
[Site "Omaha"]
[Date "1959.07.27"]
[Round "7"]
[White "Johnson, Roger B"]
[Black "Levy, Louis"]
[Result "0-1"]
[ECO "A13"]
[PlyCount "70"]
[EventDate "1959.07.20"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 d5 3. e3 e6 4. b3 Be7 5. Bb2 Nbd7 6. d3 b6 7. Be2 Bb7 8. 0-0 0-0 9. Nbd2 c5 10. Qc2 Qc7 11. Rac1 Rac8 12. cxd5 Nxd5 13. d4 Qb8 14. dxc5 Nxc5 15. Qb1 Rfd8 16. a3 Qa8 17. b4 Na4 18. Rxc8 Rxc8 19. Ba1 Nac3 20. Qd3 a5 21. bxa5 Nxe2+ 22. Qxe2 Ba6 23. Qd1 Bxf1 24. Nxf1 Qxa5 25. a4 Ra8 26. Ne5 Qxa4 27. Qh5 g6 28. Qf3 f6 29. Qh3 Nc7 30. Bd4 fxe5 31. Bxb6 Qc6 32. Bxc7 Qxc7 33. Qxe6+ Kg7 34. g3 Qd6 35. Qc4 Ra1 0-1

[Event "US Open-60"]
[Site "Omaha"]
[Date "1959.07.23"]
[Round "4"]
[White "Johnson, Roger B"]
[Black "McLellan, Richard Alan"]
[Result "0-1"]
[ECO "B38"]
[PlyCount "86"]
[EventDate "1959.07.20"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. d4 0-0 6. h3 c5 7. Be3 cxd4 8. Nxd4 Nc6 9. Be2 Bd7 10. Qd2 Rc8 11. Rc1 b6 12. 0-0 Nxd4 13. Bxd4 Bc6 14. Bf3 Nd7 15. Bxg7 Kxg7 16. Bg4 Rb8 17. Qd4+ Kg8 18. Qe3 Nf6 19. Be2 Qd7 20. Rcd1 Qe6 21. Rd4 a6 22. Nd5 b5 23. f4 bxc4 24. Nxf6+ Qxf6 25. e5 Qg7 26. Rxc4 Bb5 27. Rc2 d5 28. f5 g5 29. Rd1 e6 30. f6 Qg6 31. Rcd2 Bxe2 32. Rxe2 Rb4 33. Rd4 Rfb8 34. Rxb4 Rxb4 35. Qc3 Rc4 36. Qb3 h5 37. Qb8+ Kh7 38. Qf8 Qg8 39. Qa3 Qc8 40. b3 Rc1+ 41. Kh2 Qc5 42. Qxa6 Qg1+ 43. Kg3 Rc3+ 0-1

[Event "US Open-60"]
[Site "Omaha"]
[Date "1959.07.20"]
[Round "1"]
[White "Johnson, Roger B"]
[Black "Berliner, Hans Jack"]
[Result "0-1"]
[ECO "E97"]
[PlyCount "100"]
[EventDate "1959.07.20"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. d4 0-0 6. Be2 e5 7. 0-0 Nc6 8. d5 Ne7 9. h3 Ne8 10. Kh2 f5 11. Bg5 h6 12. Bxe7 Qxe7 13. g3 Nf6 14. Bd3 f4 15. Be2 fxg3+ 16. fxg3 h5 17. Qd2 Qd7 18. Ng1 Kh7 19. Bf3 Bh6 20. Qe1 Kg7 21. Kg2 Qe7 22. Rd1 Bd7 23. Rd3 Nh7 24. Kh2 a6 25. Qe2 Rf7 26. Bg2 Rxf1 27. Bxf1 Rf8 28. Bg2 h4 29. g4 Bf4+ 30. Kh1 Bg3 31. Bf3 Ng5 32. Kg2 c5 33. Rd1 b5 34. cxb5 axb5 35. Qd3 c4 36. Qe3 Bf4 37. Qb6 Bh2 38. Nce2 Bxg1 39. Nxg1 Qf6 40. Qe3 Qf4 41. Qxf4 Rxf4 42. Re1 b4 43. Re3 Ba4 44. Ne2 Rf8 45. a3 Bc2 46. axb4 Nxf3 47. Rxf3 Bxe4 48. Ng1 Bxd5 49. Kf2 Bxf3 50. Nxf3 e4 0-1

