[Event "US Open-72"]
[Site "Ventura"]
[Date "1971.??.??"]
[Round "10"]
[White "Fritzvold, John D"]
[Black "Erkes, Robert"]
[Result "0-1"]
[ECO "E70"]
[PlyCount "61"]
[EventDate "1971.08.08"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. d4 g6 2. c4 Bg7 3. e4 c5 4. d5 d6 5. Bd3 Nf6 6. Nc3 e6 7. Bg5 h6 8. Bh4 g5 9. Bg3 e5 10. h4 g4 11. h5 Bd7 12. Be2 Qa5 13. Qd2 Na6 14. f4 gxf3 15. Nxf3 0-0-0 16. Nh4 Rhg8 17. 0-0 Bf8 18. Rxf6 Rxg3 19. Rxf7 Re8 20. Ng6 Qd8 21. Raf1 Be7 22. Qxh6 Bg5 23. Qh7 Be3+ 24. Kh1 Qg5 25. Bf3 Bh3 26. Ne7+ Rxe7 27. Qh8+ Kd7 28. Rxe7+ Kxe7 29. Qh7+ Kd8 30. Qh8+ Kc7 31. Nb5+ 0-1

[Event "US Open-67"]
[Site "Seattle"]
[Date "1966.08.25"]
[Round "12"]
[White "Erkes, Robert"]
[Black "Schoene, Andy"]
[Result "1-0"]
[ECO "C29"]
[PlyCount "96"]
[EventDate "1966.08.14"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "USA"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. e4 e5 2. Nc3 Nf6 3. f4 d5 4. fxe5 Nxe4 5. Nf3 Be7 6. d4 0-0 7. Bd3 Bf5 8. 0-0 Bg6 9. Ne2 c5 10. c3 cxd4 11. cxd4 Nc6 12. a3 Qb6 13. b4 Rac8 14. Qb3 Rfd8 15. Rb1 Nc3 16. Nxc3 Bxd3 17. Nxd5 Rxd5 18. Qxd3 Nxe5 19. Nxe5 Rxe5 20. Kh1 Rd5 21. Qe4 Qd8 22. Bb2 Rc6 23. Rbe1 Re6 24. Qf3 Rf6 25. Qe4 Rxf1+ 26. Rxf1 Bf6 27. h3 b5 28. Re1 g6 29. Qe8+ Kg7 30. Qe4 a6 31. Rd1 Qd7 32. Rf1 Rd6 33. Rd1 h5 34. Kg1 Qe6 35. Qf4 Qd5 36. Ba1 Bg5 37. Qf3 Qxf3 38. gxf3 Bf6 39. Kf2 Kf8 40. Ke3 Ke7 41. Kd3 Ke6 42. Rc1 Kd7 43. Re1 Be7 44. f4 f5 45. Bc3 Bf6 46. Bd2 Re6 47. Rg1 Bg7 48. Be3 Kd6 1-0

[Event "US Open-67"]
[Site "Seattle"]
[Date "1966.08.25"]
[Round "13"]
[White "Erkes, Robert"]
[Black "Zemgalis, Elmars"]
[Result "1/2-1/2"]
[ECO "C01"]
[PlyCount "55"]
[EventDate "1966.08.14"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "USA"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. exd5 exd5 4. Bd3 Nc6 5. Nf3 Bg4 6. c3 Bd6 7. 0-0 Nge7 8. b4 Qd7 9. Nbd2 0-0 10. Qc2 Bf5 11. a4 Bxd3 12. Qxd3 Qf5 13. Qxf5 Nxf5 14. g3 Rfe8 15. Re1 f6 16. Ba3 h5 17. b5 Rxe1+ 18. Nxe1 Bxa3 19. Rxa3 Na5 20. Nd3 Rd8 21. Nf4 h4 22. g4 Nd6 23. Ng6 h3 24. f3 Kf7 25. Nf4 g5 26. Nxh3 Re8 27. Kf2 Rh8 28. Kg3 1/2-1/2

[Event "US Open-67"]
[Site "Seattle"]
[Date "1966.08.23"]
[Round "10"]
[White "Sloan, Sam"]
[Black "Erkes, Robert"]
[Result "0-1"]
[ECO "B75"]
[PlyCount "58"]
[EventDate "1966.08.14"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "USA"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 g6 3. d4 Bg7 4. Nc3 cxd4 5. Nxd4 Nc6 6. Be3 d6 7. Qd2 Nf6 8. f3 h5 9. 0-0-0 Bd7 10. Bc4 a6 11. Bb3 Na5 12. h3 b5 13. g4 0-0 14. Bh6 Kh7 15. Bxg7 Kxg7 16. gxh5 Nxh5 17. Bd5 Rc8 18. Nf5+ Bxf5 19. exf5 Nc4 20. Qd4+ Nf6 21. fxg6 e5 22. Qd3 Nxd5 23. Nxd5 Qa5 24. Rhg1 Qxa2 25. gxf7+ Kh8 26. Qxc4 Qxc4 27. Ne3 Qc5 28. Rd3 Qc6 29. Nf5 Qxc2# 0-1

[Event "US Open-67"]
[Site "Seattle"]
[Date "1966.08.21"]
[Round "8"]
[White "Erkes, Robert"]
[Black "Brandenburg, Joseph E"]
[Result "1-0"]
[ECO "C25"]
[PlyCount "77"]
[EventDate "1966.08.14"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "USA"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. e4 e5 2. Nc3 Nc6 3. Bc4 g6 4. d3 Bg7 5. Be3 Nf6 6. h3 d6 7. Nge2 0-0 8. Qd2 Ne7 9. f4 Kh8 10. g4 c6 11. fxe5 dxe5 12. 0-0-0 a5 13. d4 exd4 14. Nxd4 b5 15. Bd3 Ba6 16. Rhf1 Qd7 17. Nb3 Rad8 18. Nc5 Qc8 19. Bg5 Nfg8 20. Ne2 a4 21. Qb4 f6 22. Be3 Bb7 23. Nd4 Rde8 24. Nde6 Rf7 25. h4 Qa8 26. h5 Bc8 27. g5 Bxe6 28. Nxe6 Qc8 29. hxg6 Nxg6 30. Nxg7 Kxg7 31. gxf6+ Nxf6 32. Qc3 Qe6 33. Bd4 Ref8 34. Rf5 Kg8 35. Bxf6 Rxf6 36. Rdf1 Ne5 37. Rg1+ Kh8 38. Qxe5 Qf7 39. Rgf1 1-0

[Event "US Open-67"]
[Site "Seattle"]
[Date "1966.08.17"]
[Round "3"]
[White "Dahlberg, Ivars A"]
[Black "Erkes, Robert"]
[Result "1-0"]
[ECO "A43"]
[PlyCount "63"]
[EventDate "1966.08.14"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "USA"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. d4 g6 2. e4 Bg7 3. f4 c5 4. d5 d6 5. Nf3 e6 6. Bb5+ Bd7 7. Bxd7+ Qxd7 8. Nc3 Ne7 9. dxe6 fxe6 10. Be3 Na6 11. Qd2 Rd8 12. 0-0-0 d5 13. exd5 exd5 14. Bf2 0-0 15. Rhe1 d4 16. Bh4 Rde8 17. Ne5 Bxe5 18. fxe5 Qg4 19. Bxe7 dxc3 20. Qd5+ Rf7 21. Bd6 cxb2+ 22. Kb1 Qf5 23. e6 Qxd5 24. Rxd5 Rf2 25. a3 Rxg2 26. Kxb2 c4 27. Rd4 c3+ 28. Kxc3 Rc8+ 29. Kb3 Rgxc2 30. e7 R2c3+ 31. Kb2 Rc2+ 32. Kb1 1-0

[Event "US Open-67"]
[Site "Seattle"]
[Date "1966.08.14"]
[Round "1"]
[White "Byrne, Robert Eugene"]
[Black "Erkes, Robert"]
[Result "1-0"]
[ECO "A43"]
[PlyCount "91"]
[EventDate "1966.08.14"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "USA"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. e4 g6 2. d4 Bg7 3. Nc3 c5 4. d5 d6 5. Nf3 Bg4 6. Be2 Nd7 7. 0-0 Ngf6 8. Bg5 h6 9. Be3 0-0 10. Re1 a6 11. a4 b6 12. h3 Bxf3 13. Bxf3 Qc7 14. Be2 c4 15. f4 Rac8 16. Bf3 Kh7 17. Qd2 e5 18. dxe6 fxe6 19. Rad1 Ne8 20. e5 d5 21. Ne2 Nc5 22. Nd4 Qd7 23. b3 cxb3 24. cxb3 Nc7 25. Rc1 a5 26. Rc3 N7a6 27. Nb5 Rfd8 28. Bd4 Bf8 29. Qe2 Nb4 30. h4 Qf7 31. h5 Qxf4 32. hxg6+ Kxg6 33. Bh5+ Kh7 34. Rf1 Qg5 35. Rf7+ Bg7 36. Be3 Qh4 37. Bf2 Qe4 38. Rg3 Rg8 39. Bg6+ Qxg6 40. Rxg6 Kxg6 41. Nd6 Ne4 42. Qg4+ Ng5 43. Be3 Bxe5 44. Bxg5 Bxd6 45. Rf6+ Kg7 46. Bh4+ 1-0

[Event "US Open-63"]
[Site "San Antonio"]
[Date "1962.08.13"]
[Round "1"]
[White "Erkes, Robert"]
[Black "Medina Garcia, Antonio Angel"]
[Result "0-1"]
[ECO "C50"]
[PlyCount "32"]
[EventDate "1962.08.13"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Nc3 Bc5 5. h3 d6 6. 0-0 Be6 7. Qe2 0-0 8. a3 Nh5 9. Re1 Nf4 10. Qf1 Qf6 11. Bxe6 fxe6 12. d4 exd4 13. Bxf4 dxc3 14. b4 Bxf2+ 15. Qxf2 Qxf4 16. Re3 a5 0-1

