[Event "US Open-61"]
[Site "Saint Louis"]
[Date "1960.08.16"]
[Round "9"]
[White "Ohman, Howard"]
[Black "Zuckerman, Bernard"]
[Result "0-1"]
[ECO "A00"]
[PlyCount "50"]
[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. b4 Nf6 2. Bb2 e5 3. a3 d6 4. Nc3 g6 5. e4 Bg7 6. Bc4 Nc6 7. d3 0-0 8. Nge2 Be6 9. Nd5 Ne7 10. Ne3 d5 11. exd5 Nfxd5 12. Nxd5 Bxd5 13. Bxd5 Qxd5 14. 0-0 Rad8 15. f4 e4 16. Bxg7 Kxg7 17. Qc1 exd3 18. Rd1 d2 19. Qb2+ Kg8 20. a4 Nf5 21. Ra3 Qe4 22. Qe5 Qxc2 23. Qa1 Rfe8 24. Kf2 Qe4 25. Ng1 Ne3 0-1

[Event "US Open-61"]
[Site "Saint Louis"]
[Date "1960.08.15"]
[Round "8"]
[White "Sandrin, Albert"]
[Black "Ohman, Howard"]
[Result "1-0"]
[ECO "A42"]
[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. e4 c6 2. c4 d6 3. d4 g6 4. Nc3 Bg7 5. Be3 f5 6. Bd3 fxe4 7. Nxe4 Nf6 8. Ng5 Bf5 9. d5 Qd7 10. Bxf5 gxf5 11. Ne6 Rg8 12. Bd4 Na6 13. Qe2 Kf7 14. Nh3 h6 15. Bxf6 exf6 16. Qh5+ Ke7 17. Nhf4 Qe8 18. Qxf5 Bh8 19. 0-0-0 Qc8 20. Rhe1 1-0

[Event "US Open-61"]
[Site "Saint Louis"]
[Date "1960.08.12"]
[Round "5"]
[White "Ohman, Howard"]
[Black "Lyman, Shelby"]
[Result "0-1"]
[ECO "A02"]
[PlyCount "50"]
[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. f4 Nf6 2. Nf3 g6 3. b3 Bg7 4. Bb2 c5 5. c4 0-0 6. e3 d5 7. cxd5 Nxd5 8. Bxg7 Kxg7 9. Qc2 Nc6 10. a3 Bf5 11. e4 e5 12. exf5 e4 13. Ne5 Nd4 14. Qb2 Nxf4 15. g3 Qf6 16. gxf4 Qh4+ 17. Kd1 Qxf4 18. Nc3 Qxe5 19. Ne2 Rad8 20. Rc1 Qxf5 21. Qc3 Kg8 22. Nxd4 Rxd4 23. Be2 Rfd8 24. Rc2 Rd3 25. Qxc5 Rxd2+ 0-1

[Event "US Open-61"]
[Site "Saint Louis"]
[Date "1960.08.11"]
[Round "4"]
[White "Ohman, Howard"]
[Black "O'Keefe, Jack"]
[Result "1/2-1/2"]
[ECO "A03"]
[PlyCount "61"]
[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. f4 Nf6 2. Nf3 g6 3. Nc3 d5 4. e3 Bg7 5. Be2 0-0 6. 0-0 c5 7. d4 b6 8. Ne5 Ba6 9. dxc5 bxc5 10. Bxa6 Nxa6 11. Nc6 Qc7 12. Nxd5 Nxd5 13. Qxd5 Nb4 14. Nxb4 cxb4 15. Qb3 a5 16. Rf2 Rfd8 17. Rd2 Rd6 18. Rxd6 Qxd6 19. Qd3 Rd8 20. Kf2 Qxd3 21. cxd3 Rxd3 22. Ke2 Rd8 23. Rb1 f5 24. Bd2 Kf7 25. a3 Ke6 26. axb4 axb4 27. Bxb4 Rb8 28. Ba3 Rb3 29. Rd1 Bxb2 30. Rb1 Rxa3 31. Rxb2 1/2-1/2

[Event "US Open-61"]
[Site "Saint Louis"]
[Date "1960.08.09"]
[Round "2"]
[White "Ohman, Howard"]
[Black "Poschel, Paul"]
[Result "0-1"]
[ECO "A00"]
[PlyCount "64"]
[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. b4 d5 2. Bb2 Nf6 3. Nf3 Bf5 4. d3 e6 5. a3 c5 6. c3 h6 7. g3 Nbd7 8. Qa4 Be7 9. Ne5 0-0 10. Nxd7 Nxd7 11. Bg2 a6 12. c4 b5 13. Qb3 bxc4 14. dxc4 dxc4 15. Qxc4 Nb6 16. Qb3 Rb8 17. e4 Bg6 18. 0-0 Nd7 19. Rd1 Qc7 20. Qc4 Qa7 21. Nc3 Bh5 22. Re1 Ne5 23. Qf1 Nf3+ 24. Bxf3 Bxf3 25. Re3 Bh5 26. h3 Rfd8 27. g4 Bg6 28. b5 axb5 29. Nxb5 Qa4 30. Nc3 Qa5 31. Qe2 Bg5 32. Rf3 Rd2 0-1

[Event "US Open-60"]
[Site "Omaha"]
[Date "1959.08.01"]
[Round "12"]
[White "Abram, Gary1111"]
[Black "Ohman, Howard"]
[Result "1/2-1/2"]
[ECO "C26"]
[WhiteElo "1927"]
[BlackElo "2088"]
[PlyCount "35"]
[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 e5 2. Nc3 Nf6 3. a3 d5 4. exd5 Nxd5 5. Qh5 Qd6 6. Nf3 Nd7 7. Bc4 g6 8. Qh4 Be7 9. Qg3 N5f6 10. Ng5 0-0 11. d3 Nh5 12. Qh4 h6 13. Nxf7 Rxf7 14. Bxf7+ Kxf7 15. Qc4+ Qe6 16. Qxe6+ Kxe6 17. Bxh6 g5 18. Ne4 1/2-1/2

[Event "US Open-60"]
[Site "Omaha"]
[Date "1959.07.31"]
[Round "11"]
[White "Ohman, Howard"]
[Black "Ault, Robin"]
[Result "0-1"]
[ECO "A02"]
[PlyCount "66"]
[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. f4 c5 2. e3 Nc6 3. Nf3 g6 4. Be2 Bg7 5. d3 e6 6. Nbd2 Nge7 7. Nb3 d5 8. 0-0 b6 9. c3 0-0 10. Bd2 a5 11. Rc1 a4 12. Na1 b5 13. d4 c4 14. Nc2 f6 15. Be1 Qd6 16. Nd2 e5 17. Bg4 e4 18. Bxc8 Raxc8 19. Qe2 Qe6 20. Kh1 h6 21. Qf2 Kh7 22. Rg1 Ra8 23. Qe2 Rf7 24. Qf2 Bf8 25. h3 f5 26. Qe2 Ng8 27. Bh4 b4 28. cxb4 Bxb4 29. Be1 Rb7 30. Rb1 Rab8 31. Nxb4 Nxb4 32. Qd1 Qa6 33. b3 c3 0-1

[Event "US Open-60"]
[Site "Omaha"]
[Date "1959.07.28"]
[Round "8"]
[White "Ramirez, Gilbert"]
[Black "Ohman, Howard"]
[Result "0-1"]
[ECO "C43"]
[WhiteElo "2248"]
[BlackElo "2077"]
[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. e4 e5 2. Nf3 Nf6 3. d4 Nxe4 4. Bd3 d5 5. Nxe5 Bd6 6. 0-0 0-0 7. Nc3 f5 8. Re1 c6 9. Qh5 Nd7 10. Bf4 Ndf6 11. Qe2 Bb4 12. Bxe4 fxe4 13. Bg5 Qd6 14. h3 Bf5 15. Bf4 Qe7 16. Qd2 Rae8 17. Re3 Nd7 18. Rg3 Kh8 19. Re1 Bd6 20. Bg5 Qe6 21. f4 Bb4 22. a3 Bd6 23. b4 a6 24. Ne2 Bc7 25. Re3 h6 26. Bh4 Nb6 27. g4 Bh7 28. f5 Qc8 29. Qc3 Bxe5 30. dxe5 Nc4 31. f6 Nxe3 32. fxg7+ Kxg7 33. Bg3 Qe6 34. Nf4 Qe7 35. Nd3 exd3 0-1

[Event "US Open-60"]
[Site "Omaha"]
[Date "1959.07.23"]
[Round "4"]
[White "Ohman, Howard"]
[Black "Owens, Brian"]
[Result "0-1"]
[ECO "A15"]
[PlyCount "41"]
[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. f4 Nf6 2. Nf3 c5 3. c4 d5 4. cxd5 Nxd5 5. d4 cxd4 6. Nxd4 e5 7. e4 exd4 8. exd5 Qxd5 9. Kf2 Bc5 10. Bd3 0-0 11. Re1 Nc6 12. a3 Bf5 13. b4 Bb6 14. b5 Bxd3 15. Qxd3 Na5 16. Nd2 Rfe8 17. Bb2 Re3 18. Qf1 Nb3 19. Nxb3 Rxb3 20. Bc1 d3+ 21. Be3 0-1

[Event "US Open-54"]
[Site "Milwaukee"]
[Date "1953.08.10"]
[Round "1"]
[White "Ohman, Howard"]
[Black "Crittenden, Charles C"]
[Result "0-1"]
[ECO "D14"]
[PlyCount "54"]
[EventDate "1953.08.10"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "USA"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 d5 3. d4 c6 4. cxd5 cxd5 5. Nf3 Nc6 6. Bf4 Bf5 7. Qb3 Na5 8. Qa4+ Bd7 9. Qd1 e6 10. a3 Rc8 11. Qd3 Qb6 12. b4 Nc4 13. Bd2 a5 14. bxa5 Qxa5 15. Nb1 Nxd2 16. Nbxd2 Rc3 17. Qb1 Bxa3 18. Qxb7 Bb4 19. Qa8+ Qxa8 20. Rxa8+ Ke7 21. Ra1 Ra8 22. Rb1 Rb3 23. Kd1 Rxb1+ 24. Nxb1 Ba4+ 25. Kc1 Rc8+ 26. Kb2 Rc2+ 27. Ka1 Bb3 0-1

[Event "US Open-41 Final (Western op-41)"]
[Site "Dallas"]
[Date "1940.08.28"]
[Round "9"]
[White "Marchand, Erich Watkinson"]
[Black "Ohman, Howard"]
[Result "1-0"]
[ECO "B26"]
[PlyCount "123"]
[EventDate "1940.08.24"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. g3 d6 4. Bg2 g6 5. Nge2 Bg7 6. d3 e6 7. 0-0 Nge7 8. Be3 0-0 9. Qd2 Nd4 10. Nd1 Nxe2+ 11. Qxe2 Bd7 12. c3 Nc6 13. h3 Qe7 14. Kh2 f5 15. f4 Rab8 16. Bg1 b5 17. a3 a5 18. Re1 e5 19. exf5 Rxf5 20. Ne3 Rff8 21. Nd5 Qd8 22. fxe5 Bxe5 23. Be3 Re8 24. Qd2 Bg7 25. Bg5 Qc8 26. Nf6+ Bxf6 27. Bxf6 Be6 28. Qh6 Rb7 29. d4 cxd4 30. cxd4 d5 31. Rac1 Rf8 32. Qg5 Rbf7 33. Bxd5 Rxf6 34. Rxe6 Rxe6 35. Rxc6 Qxc6 36. Bxc6 Re2+ 37. Bg2 Rxb2 38. Qd5+ Kg7 39. Qe5+ Kg8 40. d5 Rff2 41. d6 Rxg2+ 42. Kh1 Rge2 43. Qd5+ Kf8 44. Qf3+ Kg7 45. Qc3+ Kf7 46. Qc7+ Kf6 47. Qd8+ Kf5 48. Qf8+ Ke4 49. Qf1 Rf2 50. Qe1+ Rbe2 51. Qb1+ Kf3 52. Qb3+ Ke4 53. Qe6+ Kd3 54. Qd5+ Kc2 55. Qa2+ Kc3 56. Qa1+ Kb3 57. Qg1 Kxa3 58. d7 b4 59. d8Q a4 60. Qa1+ Ra2 61. Qd3+ b3 62. Qd6# 1-0

[Event "US Open-41 Final (Western op-41)"]
[Site "Dallas"]
[Date "1940.08.27"]
[Round "7"]
[White "Steiner, Herman"]
[Black "Ohman, Howard"]
[Result "1-0"]
[ECO "B73"]
[PlyCount "85"]
[EventDate "1940.08.24"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 g6 7. Be3 Bg7 8. 0-0 0-0 9. Kh1 d5 10. exd5 Nb4 11. Qd2 Nbxd5 12. Nxd5 Qxd5 13. Bf3 Qd6 14. Qe2 e5 15. Nb5 Qe7 16. Bg5 Qc5 17. Bxf6 Bxf6 18. Rad1 Be6 19. b3 Rab8 20. Nd6 Qc7 21. c4 Rfd8 22. Nb5 Qb6 23. Nc3 Bg7 24. Bd5 Qa5 25. Qe3 Bxd5 26. Nxd5 a6 27. a4 Kf8 28. h4 b6 29. Rd3 Qc5 30. Nxb6 Qe7 31. Nd5 Qxh4+ 32. Kg1 e4 33. Qc5+ Kg8 34. Rh3 Qg4 35. Re1 h5 36. Qc6 Ra8 37. Rxe4 Qd1+ 38. Kh2 Qc2 39. Rf3 Qd1 40. Ne7+ Kh7 41. Rxf7 Qd6+ 42. Qxd6 Rxd6 43. Nd5 1-0

[Event "US Open-41 Final (Western op-41)"]
[Site "Dallas"]
[Date "1940.08.25"]
[Round "2"]
[White "Fine, Reuben"]
[Black "Ohman, Howard"]
[Result "1-0"]
[ECO "D23"]
[PlyCount "69"]
[EventDate "1940.08.24"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. Qa4+ c6 5. Qxc4 Nbd7 6. Qc2 e6 7. g3 Bb4+ 8. Nc3 0-0 9. Bg2 Qe7 10. 0-0 e5 11. e4 exd4 12. Nxd4 Nb6 13. Re1 Bxc3 14. Qxc3 Re8 15. Bf4 Be6 16. a4 Nh5 17. a5 Nxf4 18. gxf4 Nc8 19. f5 Bd7 20. a6 Rb8 21. e5 c5 22. e6 cxd4 23. exd7 Qxd7 24. Qxd4 Nb6 25. Qxd7 Rxe1+ 26. Rxe1 Nxd7 27. axb7 Kf8 28. b4 Rd8 29. Rc1 Nb8 30. Rc8 Ke7 31. Bf1 a6 32. Bc4 Rf8 33. Kg2 Rd8 34. Bxf7 Rd7 35. Rxb8 1-0

[Event "Alekhine sim"]
[Site "Omaha "]
[Date "1924.03.05"]
[Round "?"]
[White "Alekhine, Alexander"]
[Black "Ohman, Howard"]
[Result "1/2-1/2"]
[ECO "D67"]
[PlyCount "129"]
[EventDate "1924.03.05"]
[EventType "simul"]
[EventRounds "1"]
[EventCountry "USA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. c4 e6 4. Nc3 Be7 5. Bg5 Nbd7 6. e3 0-0 7. Rc1 c6 8. Bd3 dxc4 9. Bxc4 Nd5 10. Bxe7 Qxe7 11. Ne4 Qb4+ 12. Qd2 Qxd2+ 13. Kxd2 N7f6 14. Nc3 Bd7 15. Ne5 Be8 16. f4 Nd7 17. Rhf1 f6 18. Nd3 Bf7 19. Ne4 N7b6 20. Bb3 Rfd8 21. g4 Kf8 22. g5 Ke7 23. Rg1 Rg8 24. h4 Nd7 25. Rg3 Bg6 26. Nec5 Nxc5 27. Nxc5 Rab8 28. Rcg1 b6 29. Nd3 Rgf8 30. gxf6+ gxf6 31. Nf2 Rg8 32. h5 Bf7 33. Rg7 Kf8 34. h6 Re8 35. Ne4 Ke7 36. R1g2 f5 37. Bxd5 cxd5 38. Nf2 Kf6 39. Nd3 Rxg7 40. Rxg7 Rg8 41. Rxg8 Bxg8 42. Ne5 Bf7 43. Kc3 Be8 44. Kb4 a5+ 45. Kc3 Ke7 46. b4 a4 47. Nf3 b5 48. Ng5 Bg6 49. Kd2 Kf6 50. Ke1 Ke7 51. Kf2 Kf6 52. Kg3 Ke7 53. Kh4 Kf6 54. Kh3 Ke7 55. Kg3 Kf6 56. Kh4 Ke7 57. Nf3 Kf6 58. Ne5 Be8 59. Kh3 Ke7 60. Kg3 Kf6 61. Kh4 Bf7 62. Nc6 Be8 63. Nd8 Bf7 64. Nb7 Be8 65. Nc5 1/2-1/2

