[Event "US Open-57"]
[Site "Oklahoma"]
[Date "1956.??.??"]
[Round "8"]
[White "Crittenden, Charles C"]
[Black "Kerr, D."]
[Result "0-1"]
[ECO "E59"]
[PlyCount "52"]
[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 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 Nc6 6. Nf3 d5 7. 0-0 0-0 8. a3 Bxc3 9. bxc3 dxc4 10. Bxc4 Qc7 11. Bd3 e5 12. Qc2 h6 13. Re1 Bg4 14. Nxe5 Nxe5 15. dxe5 Qxe5 16. Bb2 Rad8 17. f3 Bh5 18. c4 Qg5 19. f4 Qh4 20. g3 Qh3 21. e4 Ng4 22. Rad1 Nxh2 23. Qxh2 Qxh2+ 24. Kxh2 Bxd1 25. Rxd1 Rd7 26. Kg2 Rfd8 0-1

[Event "US Open-57"]
[Site "Oklahoma"]
[Date "1956.??.??"]
[Round "4"]
[White "Fuster, Geza"]
[Black "Kerr, D."]
[Result "0-1"]
[ECO "E18"]
[PlyCount "59"]
[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 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. 0-0 0-0 7. Nc3 Ne4 8. Nxe4 Bxe4 9. Bf4 d6 10. Qd2 Nd7 11. Rfd1 a5 12. Rac1 f5 13. Ng5 Bxg5 14. Bxg5 Qe8 15. f3 Bb7 16. Be3 e5 17. c5 exd4 18. c6 Qxe3+ 19. Qxe3 dxe3 20. cxb7 Rad8 21. Rxc7 Nc5 22. f4 h6 23. b3 Kh7 24. Bd5 Rd7 25. Rxd7 Nxd7 26. Bc6 Nb8 27. Rxd6 Rf6 28. Rd8 Rxc6 29. Rxb8 Rc7 30. Rh8+ 0-1

[Event "US Open-57"]
[Site "Oklahoma"]
[Date "1956.??.??"]
[Round "5"]
[White "Kerr, D."]
[Black "Avram, Herbert Mois"]
[Result "1/2-1/2"]
[ECO "E15"]
[PlyCount "82"]
[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 Nf6 2. Nf3 e6 3. c4 b6 4. g3 Ba6 5. Qa4 c6 6. Nc3 d5 7. Ne5 Bb7 8. cxd5 Nxd5 9. Bg2 f6 10. Nd3 Bd6 11. 0-0 0-0 12. Qb3 Kh8 13. e4 Nxc3 14. Qxc3 Na6 15. e5 Be7 16. Be3 f5 17. Rac1 Rc8 18. Qb3 Qd7 19. Qa4 g5 20. a3 f4 21. gxf4 gxf4 22. Nxf4 Rg8 23. Kh1 b5 24. Qd1 c5 25. Bxb7 Qxb7+ 26. f3 cxd4 27. Rxc8 Qxc8 28. Qxd4 Bc5 29. Qc3 b4 30. axb4 Bxe3 31. Qxe3 Qc2 32. Qd3 Nxb4 33. Qxc2 Nxc2 34. Nxe6 Re8 35. Rc1 Rxe6 36. Rxc2 Rxe5 37. Rc8+ Kg7 38. Rc7+ Kg6 39. Rxa7 Re1+ 40. Kg2 Re2+ 41. Kg3 Rxb2 1/2-1/2

[Event "US Open-57"]
[Site "Oklahoma"]
[Date "1956.??.??"]
[Round "11"]
[White "Kerr, D."]
[Black "Di Camillo, Attilio"]
[Result "0-1"]
[ECO "D02"]
[PlyCount "114"]
[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 d5 2. Nf3 c5 3. dxc5 Nf6 4. a3 e6 5. b4 a5 6. Bb2 b6 7. e3 bxc5 8. bxc5 Bxc5 9. Bb5+ Bd7 10. Bxd7+ Nbxd7 11. c4 Rb8 12. Ra2 0-0 13. cxd5 Nxd5 14. 0-0 Qe7 15. Nc3 N7f6 16. Nxd5 Nxd5 17. Nd4 Rfc8 18. Qa4 Bxd4 19. Qxd4 f6 20. e4 Nf4 21. Qe3 e5 22. Bc3 Rb3 23. Rc1 Qc5 24. Bd2 Ne2+ 25. Qxe2 Qxc1+ 26. Be1 Rb1 27. Kf1 Qc4 28. f3 Kf7 29. Kf2 Qxe2+ 30. Kxe2 a4 31. Bb4 Rbc1 32. Kd2 R1c6 33. Kd3 Ke6 34. g4 g6 35. Rf2 Rd8+ 36. Ke3 Rd1 37. Re2 Rc8 38. Rb2 Rcd8 39. Bd2 Ra1 40. Bb4 Rdd1 41. Rc2 Rac1 42. Rb2 Rb1 43. Rc2 Rb3+ 44. Kf2 Rdd3 45. Rc7 Rxf3+ 46. Kg2 f5 47. gxf5+ gxf5 48. exf5+ Kxf5 49. Rxh7 Rfd3 50. Rf7+ Ke4 51. Rf2 Kd5 52. h4 Rg3+ 53. Kf1 Rb1+ 54. Ke2 Rb2+ 55. Kf1 Rxf2+ 56. Kxf2 Rg4 57. Be7 Ke6 0-1

[Event "US Open-57"]
[Site "Oklahoma"]
[Date "1956.??.??"]
[Round "3"]
[White "Kerr, D."]
[Black "Marchand, Erich Watkinson"]
[Result "1-0"]
[ECO "B40"]
[PlyCount "61"]
[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 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Bb4 6. Bd3 Nc6 7. Nxc6 bxc6 8. 0-0 d5 9. e5 Nd7 10. Qg4 Bf8 11. f4 f5 12. exf6 Nxf6 13. Qg3 Bc5+ 14. Kh1 0-0 15. Bd2 a5 16. Rae1 a4 17. Re2 Bd6 18. b3 axb3 19. axb3 Rf7 20. Qh4 Qc7 21. g4 e5 22. fxe5 Bxe5 23. Rfe1 Re7 24. g5 Ne4 25. Nxe4 dxe4 26. g6 hxg6 27. Rxe4 Ba6 28. Bxa6 Rxa6 29. Bc3 Bxc3 30. Rxe7 Bxe1 31. Qc4+ 1-0

[Event "US Open-57"]
[Site "Oklahoma"]
[Date "1956.??.??"]
[Round "7"]
[White "Kerr, D."]
[Black "Martin, Raymond"]
[Result "1-0"]
[ECO "E91"]
[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. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 0-0 5. e4 c5 6. d5 d6 7. Be2 Na6 8. 0-0 Nc7 9. h3 Bd7 10. Be3 a6 11. a4 b5 12. axb5 axb5 13. e5 Rxa1 14. Qxa1 dxe5 15. Nxe5 Nfxd5 16. cxd5 Bxe5 17. Bxc5 Re8 18. Rd1 Qc8 19. Qa3 Na6 20. b4 Nc7 21. Bd4 Bxd4 22. Rxd4 Qb7 23. Bf3 Ra8 24. Qc1 Qb6 25. Rh4 Qf6 26. Rf4 Ra1 27. Qxa1 Qxf4 28. Qa7 Qc1+ 29. Nd1 Bf5 30. Qb8+ Kg7 31. Qd8 h5 32. Qxe7 Nxd5 33. Qe5+ Nf6 34. Qxb5 Qb1 35. Kh2 Bd3 36. Qc5 Bf1 37. Ne3 Bd3 38. Qd4 Bb5 39. Qe5 Bd7 40. g4 hxg4 41. hxg4 Qe1 42. Kg2 Qd2 43. Nd5 Bxg4 44. Qxf6+ Kg8 45. Ne7+ Kf8 46. Nxg6+ 1-0

[Event "US Open-57"]
[Site "Oklahoma"]
[Date "1956.??.??"]
[Round "2"]
[White "Kerr, D."]
[Black "McCormick, Edgar Thomas"]
[Result "1-0"]
[ECO "D07"]
[PlyCount "79"]
[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 d5 2. Nf3 Nc6 3. c4 e5 4. Nxe5 Nxe5 5. dxe5 d4 6. e3 Bb4+ 7. Bd2 dxe3 8. Qa4+ Bd7 9. Qxb4 exd2+ 10. Nxd2 Ne7 11. Be2 0-0 12. 0-0 Nc6 13. Qc3 Qe7 14. f4 f6 15. Bf3 fxe5 16. fxe5 Rae8 17. Bd5+ Kh8 18. Rxf8+ Rxf8 19. Re1 Re8 20. Kh1 h6 21. h3 Nd8 22. Nf3 c6 23. Be4 Ne6 24. Rd1 Nf4 25. Qd2 Nxh3 26. gxh3 Bxh3 27. Qd6 Qf7 28. Qg6 Qxg6 29. Bxg6 Bg4 30. Rd3 Rf8 31. Kg2 Kg8 32. Kg3 Be6 33. b3 Bf7 34. Bxf7+ Rxf7 35. Rd8+ Kh7 36. e6 Re7 37. Nd4 c5 38. Rd7 Re8 39. Nf5 Rxe6 40. Rxg7+ 1-0

[Event "US Open-57"]
[Site "Oklahoma"]
[Date "1956.??.??"]
[Round "9"]
[White "Kerr, D."]
[Black "Steinmeyer, Robert H"]
[Result "1/2-1/2"]
[ECO "C09"]
[PlyCount "132"]
[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 e6 2. d4 d5 3. Nd2 c5 4. exd5 exd5 5. Bb5+ Nc6 6. Ngf3 Bd6 7. 0-0 Nge7 8. dxc5 Bxc5 9. Nb3 Bd6 10. Re1 0-0 11. c3 Bg4 12. Bd3 Qd7 13. Nbd4 Nxd4 14. cxd4 Nc6 15. h3 Bf5 16. Ne5 Bxe5 17. dxe5 Rfe8 18. f4 Bxd3 19. Qxd3 f6 20. Qg3 fxe5 21. fxe5 Re6 22. Bf4 Rae8 23. Rad1 d4 24. a3 Qd5 25. Qf3 Qxf3 26. gxf3 Kf7 27. h4 R6e7 28. Bg3 Rd7 29. f4 Ke6 30. Rd3 Kf5 31. Kg2 Nd8 32. Kf3 Ne6 33. Rc1 a6 34. Rc4 Red8 35. h5 Rd5 36. Rc1 Nc5 37. Rdd1 R8d7 38. Be1 Ne6 39. Rc8 Rd8 40. Rxd8 Rxd8 41. Bd2 Rc8 42. Rc1 Rxc1 43. Bxc1 Nc5 44. Bd2 Nd3 45. b4 Nb2 46. Ke2 Ke4 47. e6 Nc4 48. e7 Nd6 49. Bc1 Ne8 50. Bd2 Nf6 51. Bc1 Kf5 52. Kd3 Ke6 53. h6 g6 54. Kxd4 Kxe7 55. f5 gxf5 56. Ke5 Nd7+ 57. Kxf5 Nb6 58. Bg5+ Kd7 59. Kf6 Nd5+ 60. Kg7 Ke6 61. Kxh7 Kf7 62. Bd2 b5 63. Bc1 Nf6+ 64. Kh8 Ne4 65. Kh7 Nf6+ 66. Kh8 Ne4 1/2-1/2

[Event "US Open-57"]
[Site "Oklahoma"]
[Date "1956.??.??"]
[Round "10"]
[White "Mednis, Edmar John"]
[Black "Kerr, D."]
[Result "1-0"]
[ECO "B95"]
[PlyCount "77"]
[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 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. Qf3 Nbd7 8. 0-0-0 Qc7 9. Qg3 b5 10. Bxb5 axb5 11. Ndxb5 Qb8 12. Nxd6+ Bxd6 13. Qxd6 Qxd6 14. Rxd6 Ra6 15. Rxa6 Bxa6 16. f3 Kd8 17. Rd1 Kc7 18. Bf4+ e5 19. Be3 Re8 20. a4 Re6 21. b4 Bc4 22. Kb2 Rd6 23. Ra1 Kb7 24. b5 Ne8 25. Ka3 f6 26. Kb4 Bf7 27. a5 Nc7 28. a6+ Kb8 29. Rd1 Rxd1 30. Nxd1 Ne6 31. c3 Nf4 32. Bxf4 exf4 33. Nb2 Kc7 34. c4 Ne5 35. c5 Be8 36. c6 Kb8 37. Nc4 Nxc4 38. Kxc4 g5 39. Kc5 1-0

[Event "US Open-57"]
[Site "Oklahoma"]
[Date "1956.??.??"]
[Round "6"]
[White "Shaw, Steven J"]
[Black "Kerr, D."]
[Result "0-1"]
[ECO "B43"]
[PlyCount "120"]
[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 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 b5 7. Bg2 Bb7 8. 0-0 e6 9. a3 Qc7 10. Nb3 Be7 11. Bf4 Nbd7 12. Re1 0-0 13. Qe2 Ne5 14. Nd2 Rab8 15. Rac1 Rfd8 16. Na2 Nc4 17. Nxc4 Qxc4 18. Qxc4 bxc4 19. b4 Ne8 20. Rcd1 Bf6 21. c3 Bc6 22. Rd2 Ba4 23. Be3 Nc7 24. Bd4 e5 25. Be3 Nb5 26. Bf1 Nxa3 27. Rc1 Bc6 28. Rcd1 Bxe4 29. Rxd6 Bc2 30. R1d2 Ra8 31. Bg2 e4 32. Rxd8+ Rxd8 33. Rxd8+ Bxd8 34. Bd4 Bg5 35. f4 exf3 36. Bxf3 Bb3 37. b5 Nxb5 38. Nb4 Nxd4 39. cxd4 Be3+ 40. Kf1 c3 41. Be4 Bxd4 42. Nc2 Bc5 43. Ke1 a5 44. Na1 Ba4 45. Nc2 Kf8 46. Ke2 g6 47. Kd3 f5 48. Bd5 Bb4 49. Ba2 h6 50. Nd4 Ke7 51. Bb3 Bxb3 52. Nxb3 Kd6 53. Na1 Kd5 54. Nc2 g5 55. Ne3+ Ke5 56. Nc4+ Ke6 57. Ne3 f4 58. gxf4 gxf4 59. Ng4 a4 60. Kc2 f3 0-1

[Event "US Open-57"]
[Site "Oklahoma"]
[Date "1956.??.??"]
[Round "12"]
[White "Smith, Kenneth Ray"]
[Black "Kerr, D."]
[Result "1/2-1/2"]
[ECO "C02"]
[PlyCount "32"]
[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 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Qb6 6. a3 c4 7. Ng5 Na5 8. Nd2 h6 9. Nh3 Ne7 10. Nf4 Bd7 11. g3 0-0-0 12. Bh3 g6 13. 0-0 Bg7 14. Ng2 h5 15. f4 Nf5 16. Bxf5 gxf5 1/2-1/2

