[Event "Cincinnati-ch"]
[Site "Cincinnati"]
[Date "1966.??.??"]
[Round "5"]
[White "Nickerson, Ken"]
[Black "Hayes, Rea B"]
[Result "0-1"]
[ECO "A22"]
[PlyCount "90"]
[EventDate "1966.??.??"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 Nf6 3. g3 d5 4. cxd5 Nxd5 5. Bg2 c6 6. Nf3 Bd6 7. 0-0 0-0 8. d4 Nxc3 9. bxc3 exd4 10. cxd4 Be6 11. Be3 Nd7 12. a4 Bd5 13. a5 b5 14. Qb1 h6 15. Bd2 Re8 16. Re1 Be4 17. Qc1 Rc8 18. Nh4 c5 19. Bxe4 Rxe4 20. Nf5 Bf8 21. Qb1 Qe8 22. Qxb5 cxd4 23. Rac1 Rxc1 24. Bxc1 Qe6 25. Nh4 Ne5 26. f3 Rxh4 27. gxh4 Nxf3+ 28. Kf2 Nxe1 29. Kxe1 Qe7 30. Qb8 Qb4+ 31. Qxb4 Bxb4+ 32. Bd2 Bd6 33. Kf2 Bxh2 34. Bb4 Bc7 35. Kf3 f5 36. h5 Kf7 37. a6 Bb6 38. Kf4 Kf6 39. Bd6 g5+ 40. Kf3 g4+ 41. Kf4 Ke6 42. Bb8 Bc5 43. Kg3 Bd6+ 44. Kh4 Bxb8 45. e3 g3 0-1

[Event "Cincinnati-ch"]
[Site "Cincinnati"]
[Date "1966.??.??"]
[Round "2"]
[White "Nickerson, Ken"]
[Black "Johnson, Clarence"]
[Result "1-0"]
[ECO "A25"]
[PlyCount "75"]
[EventDate "1966.??.??"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 Nf6 3. g3 Nc6 4. Bg2 Bc5 5. e3 d6 6. Nge2 Bg4 7. 0-0 Qd7 8. a3 a6 9. Re1 0-0 10. b4 Ba7 11. Bb2 Rab8 12. Nd5 Qd8 13. Rc1 Re8 14. Qa4 Nxd5 15. Bxd5 Ne7 16. Bg2 Bd7 17. Qb3 b5 18. cxb5 Bxb5 19. Nc3 Bd7 20. Qc2 c6 21. Ne4 Bf5 22. Qa4 Rb6 23. d4 Bxe4 24. Bxe4 d5 25. Bd3 Qc8 26. dxe5 Bb8 27. Bd4 Rb7 28. Bxa6 Rxb4 29. axb4 Qf5 30. Bb7 Bxe5 31. Bxe5 Qxe5 32. Bxc6 Nxc6 33. Qxc6 f5 34. Red1 Rd8 35. Rc5 g6 36. Rcxd5 Rxd5 37. Qxd5+ Qxd5 38. Rxd5 1-0

[Event "Cincinnati-ch"]
[Site "Cincinnati"]
[Date "1966.??.??"]
[Round "3"]
[White "Nickerson, Ken"]
[Black "Riesenbeck, Jack"]
[Result "1-0"]
[ECO "A34"]
[PlyCount "53"]
[EventDate "1966.??.??"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. c4 c5 2. Nc3 Nf6 3. g3 e6 4. Bg2 d5 5. cxd5 Nxd5 6. Nf3 Nc6 7. 0-0 Be7 8. d4 cxd4 9. Nxd4 Nxd4 10. Qxd4 Bf6 11. Qc4 Nxc3 12. bxc3 Qa5 13. Bf4 e5 14. Bc6+ Ke7 15. Be3 bxc6 16. Qxc6 Bd7 17. Bc5+ Ke8 18. Qxa8+ Bd8 19. Bb4 Qc7 20. Rfd1 f5 21. Bd6 Qb6 22. Rab1 Qa5 23. Bb4 Qc7 24. Qd5 f4 25. Bd6 Qxc3 26. Bxe5 Qxg3+ 27. hxg3 1-0

[Event "Cincinnati-ch"]
[Site "Cincinnati"]
[Date "1966.??.??"]
[Round "10"]
[White "Nickerson, Ken"]
[Black "Rueckert, Adam"]
[Result "1-0"]
[ECO "A52"]
[PlyCount "115"]
[EventDate "1966.??.??"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e5 3. dxe5 Ng4 4. e4 Nxe5 5. f4 Ng6 6. Nf3 Bb4+ 7. Nc3 Qf6 8. e5 Qb6 9. Qd3 Na6 10. Be3 Qa5 11. a3 Nc5 12. Bxc5 Bxc5 13. g3 d6 14. Rd1 0-0 15. b4 Bxb4 16. axb4 Qxb4 17. exd6 cxd6 18. Kf2 Bg4 19. Be2 Qc5+ 20. Kg2 Rfe8 21. Nd5 Qc8 22. h3 Bf5 23. Qd2 b5 24. cxb5 Qb7 25. Kh2 Rac8 26. Ne3 Be4 27. Rhf1 h6 28. Nd4 Rc5 29. Rc1 Qd7 30. Nb3 Rxb5 31. Bxb5 Qxb5 32. Rc3 Ne7 33. Rfc1 Kh7 34. Nd4 Qa6 35. Ng4 Nd5 36. Rb3 Nb6 37. Nf2 Nc4 38. Qe2 d5 39. Nxe4 Rxe4 40. Qf2 f5 41. Re1 Rxd4 42. Qxd4 Qa2+ 43. Rb2 Qxb2+ 44. Qxb2 Nxb2 45. Ra1 d4 46. Rxa7 d3 47. Rd7 Kg6 48. Kg2 Kf6 49. Kf2 g5 50. Ke3 gxf4+ 51. gxf4 Ke6 52. Rb7 d2 53. Kxd2 Nc4+ 54. Kd3 Nd6 55. Rb8 Kf6 56. Rb6 Ke6 57. Kd4 h5 58. Kc5 1-0

[Event "Cincinnati-ch"]
[Site "Cincinnati"]
[Date "1966.??.??"]
[Round "7"]
[White "Nickerson, Ken"]
[Black "Timmel, Robert"]
[Result "0-1"]
[ECO "A45"]
[PlyCount "96"]
[EventDate "1966.??.??"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 Nf6 2. g3 e6 3. Bg2 c5 4. e3 cxd4 5. exd4 d5 6. Nf3 Nc6 7. 0-0 Be7 8. Bf4 0-0 9. Nbd2 b5 10. a4 b4 11. c4 bxc3 12. bxc3 Ba6 13. Re1 Na5 14. Ne5 Nd7 15. Ndf3 Nb6 16. h4 Rc8 17. Bh3 Kh8 18. Nxf7+ Rxf7 19. Bxe6 Rxf4 20. gxf4 Rxc3 21. Ne5 Qc7 22. Qh5 g6 23. Nf7+ Kg7 24. Qh6+ Kf6 25. Qxh7 Bf8 26. h5 Bd3 27. hxg6 Qxf4 28. Qh8+ Bg7 29. Qd8+ Kxg6 30. Re3 Rc2 31. Nh8+ Bxh8 32. Qe8+ Kg5 33. Qg8+ Kf6 34. Qxh8+ Ke7 35. Bh3+ Be4 36. Qg7+ Qf7 37. Qxf7+ Kxf7 38. f3 Bg6 39. Rae1 Rc7 40. Bf1 Nac4 41. Bxc4 dxc4 42. a5 Nd5 43. Re8 c3 44. Rb8 c2 45. Rc1 Nf4 46. a6 Ne2+ 47. Kf2 Nxc1 48. Rb7 Re7 0-1

[Event "Cincinnati-ch"]
[Site "Cincinnati"]
[Date "1966.??.??"]
[Round "4"]
[White "Rueckert, Walter"]
[Black "Nickerson, Ken"]
[Result "1/2-1/2"]
[ECO "D04"]
[PlyCount "115"]
[EventDate "1966.??.??"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. Nf3 d5 2. d4 Nf6 3. e3 g6 4. Bd3 Bg7 5. c3 0-0 6. Nbd2 c5 7. 0-0 Nc6 8. dxc5 Nd7 9. Nd4 Nxc5 10. Nxc6 bxc6 11. Be2 Rb8 12. Nb3 Ne4 13. Nd2 Nd6 14. h4 e5 15. g3 Bh3 16. Re1 h5 17. Kh2 Qc8 18. Rg1 e4 19. g4 Bxg4 20. Bxg4 Be5+ 21. Kh3 hxg4+ 22. Qxg4 Kg7 23. Qxc8 Rfxc8 24. f4 Bf6 25. Nb3 Rh8 26. Rg4 Nf5 27. Nd4 a5 28. b4 Rh5 29. Bd2 Rbh8 30. Be1 Kf8 31. Bf2 Ke8 32. Nxc6 Bxh4 33. Bxh4 Nxh4 34. Kg3 Nf3 35. Kf2 Rh2+ 36. Rg2 Rxg2+ 37. Kxg2 Rh2+ 38. Kg3 Re2 39. Nxa5 Rxe3 40. b5 Rxc3 41. b6 Ne5+ 42. Kh4 Nd7 43. Rb1 e3 44. Nb3 Rc2 45. Nd4 Rxa2 46. b7 Nb8 47. Kg3 Ra4 48. Ne2 Ke7 49. Kf3 Kd7 50. Kxe3 Kc7 51. Nc1 Nc6 52. Nd3 Ra2 53. Nc5 Ra5 54. Nd3 Kb8 55. Rb6 Nd8 56. Ne5 Ra3+ 57. Kd4 Nxb7 58. Kxd5 1/2-1/2

[Event "Cincinnati-ch"]
[Site "Cincinnati"]
[Date "1966.??.??"]
[Round "1"]
[White "Taylor, Don"]
[Black "Nickerson, Ken"]
[Result "1/2-1/2"]
[ECO "D05"]
[PlyCount "87"]
[EventDate "1966.??.??"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 e6 2. Nf3 d5 3. e3 c5 4. c3 Nf6 5. Bd3 Nc6 6. Nbd2 Qc7 7. 0-0 g6 8. Re1 Bg7 9. dxc5 Nd7 10. e4 Nxc5 11. Bc2 0-0 12. exd5 exd5 13. h3 b6 14. Nf1 Bb7 15. Be3 Rad8 16. Nd4 Rfe8 17. Nh2 Re7 18. Nhf3 Rde8 19. Nxc6 Bxc6 20. Nd4 Bb7 21. Ba4 Nxa4 22. Qxa4 a6 23. Rad1 f5 24. Nf3 Re4 25. Qb3 b5 26. Qc2 b4 27. Ng5 R4e7 28. Bd2 bxc3 29. bxc3 h6 30. Nf3 Kh7 31. Rxe7 Rxe7 32. Re1 Rxe1+ 33. Bxe1 d4 34. c4 Be4 35. Qb3 Qb7 36. Qxb7 Bxb7 37. Nd2 Bf6 38. f4 Kg7 39. Nb3 Kf7 40. Nc5 Bc8 41. Kf2 g5 42. g3 Ke7 43. Ke2 Kd6 44. Bb4 1/2-1/2

