[Event "Oberlin op"]
[Site "Oberlin"]
[Date "1999.04.17"]
[Round "3"]
[White "Marshall, Calvin"]
[Black "Demetruk, David"]
[Result "0-1"]
[ECO "B70"]
[PlyCount "84"]
[EventDate "1999.04.??"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "USA"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Bc4 Bg7 7. Bb3 Nc6 8. Nde2 0-0 9. a3 Bd7 10. h3 b5 11. 0-0 a5 12. Ng3 h5 13. Bg5 b4 14. axb4 axb4 15. Nce2 Nh7 16. Rxa8 Qxa8 17. Bc1 Qa1 18. Nf4 Ne5 19. Nd5 Nc6 20. Nb6 Be6 21. Bxe6 fxe6 22. Qe2 Qa5 23. Nc4 Qb5 24. b3 Nd4 25. Qd1 d5 26. Ne3 h4 27. e5 Bxe5 28. f4 hxg3 29. fxe5 Rxf1+ 30. Qxf1 Qc5 31. Qd3 Kg7 32. Kf1 Ng5 33. Ng4 Ne4 34. Be3 Qxc2 35. Qxd4 Qb1+ 36. Ke2 Nc3+ 37. Kf3 Qf1+ 38. Bf2 gxf2 39. Qd2 Qe1 40. Qxf2 Qd1+ 41. Kf4 g5+ 42. Ke3 d4# 0-1

[Event "Ohio-ch qual"]
[Site "Cleveland"]
[Date "1980.??.??"]
[Round "5"]
[White "Culver, Bill"]
[Black "Marshall, Calvin"]
[Result "1-0"]
[ECO "B01"]
[PlyCount "129"]
[EventDate "1980.??.??"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "USA"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Nf6 3. d4 Nxd5 4. c4 Nf6 5. Nc3 g6 6. Be2 Bg7 7. Be3 Nc6 8. h3 Bf5 9. g4 Bd7 10. f4 e6 11. Nf3 Ne7 12. Qd2 Bc6 13. 0-0-0 Ne4 14. Nxe4 Bxe4 15. Rhf1 Qd7 16. Ng5 Bc6 17. Qc2 f6 18. Ne4 b6 19. Nc3 0-0-0 20. d5 Bb7 21. Bf3 Kb8 22. Kb1 exd5 23. Nxd5 Nxd5 24. Bxd5 Qe7 25. Rfe1 Bxd5 26. cxd5 Qd6 27. f5 g5 28. Bg1 Rhe8 29. Bh2 Qd7 30. Re6 Rc8 31. a4 Rf8 32. Qc6 Rf7 33. Qb5 Qxb5 34. axb5 Bf8 35. Rc1 Be7 36. Rec6 Bc5 37. d6 cxd6 38. Rxc8+ Kxc8 39. b4 Kd7 40. bxc5 dxc5 41. Rd1+ Kc8 42. Rd6 Kb7 43. Kc2 a6 44. bxa6+ Kxa6 45. Bg1 Ka5 46. Be3 Kb5 47. Bd2 h5 48. gxh5 Rh7 49. Rxf6 Rxh5 50. Rg6 Rxh3 51. Bxg5 Rf3 52. f6 Kc4 53. Rg7 b5 54. Rb7 Rf2+ 55. Kd1 Kd5 56. Rxb5 Rf5 57. Rb8 Ke6 58. Rb6+ Kf7 59. Rb7+ Ke6 60. Re7+ Kd6 61. Bh4 c4 62. Bg3+ Kc6 63. Be5 Kd5 64. f7 c3 65. Bxc3 1-0

[Event "NZL-chB"]
[Site "New Zeeland"]
[Date "1980.??.??"]
[Round "?"]
[White "Marshall, Calvin"]
[Black "Cook, Nigel"]
[Result "0-1"]
[ECO "A73"]
[PlyCount "72"]
[EventDate "1980.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NZL"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. d4 c5 2. d5 Nf6 3. c4 e6 4. Nc3 exd5 5. cxd5 d6 6. Nf3 g6 7. e4 Bg7 8. Be2 0-0 9. 0-0 Re8 10. Bf4 Nxe4 11. Bb5 Bd7 12. Bxd7 Nxc3 13. bxc3 Qxd7 14. Qd3 Na6 15. Rae1 b5 16. a4 Nc7 17. axb5 Nxb5 18. c4 Rxe1 19. Rxe1 Nd4 20. Nd2 Re8 21. Re4 f5 22. Re3 Be5 23. Bxe5 dxe5 24. Nb3 e4 25. Qc3 f4 26. Nxc5 fxe3 27. Qxd4 e2 28. Qe3 Rb8 29. f3 Qd6 30. Nxe4 Qb6 31. c5 Qb1+ 32. Kf2 Qf1+ 33. Kg3 e1Q+ 34. Qxe1 Qxe1+ 35. Kh3 Rb3 36. d6 Qxe4 0-1

[Event "Ohio-ch qual"]
[Site "Cleveland"]
[Date "1980.??.??"]
[Round "1"]
[White "Marshall, Calvin"]
[Black "Costaras, Bill"]
[Result "1-0"]
[ECO "C64"]
[PlyCount "73"]
[EventDate "1980.??.??"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "USA"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Bc5 4. 0-0 d6 5. c3 a6 6. Bc4 b5 7. Bd5 Nge7 8. d4 exd4 9. cxd4 Bb6 10. Ng5 Nxd5 11. exd5 Ne7 12. Qh5 g6 13. Qf3 0-0 14. Be3 Nf5 15. Ne4 Bxd4 16. Bxd4 Nxd4 17. Qd3 Nf5 18. Nbd2 Ng7 19. Qc3 f5 20. Ng3 Bb7 21. Qb3 Qf6 22. Nf3 g5 23. Rfd1 Rae8 24. a4 f4 25. Nf1 g4 26. Ne1 Re5 27. axb5 axb5 28. Qxb5 Bc8 29. Nd3 Rh5 30. Ra7 g3 31. Rxc7 Qh4 32. fxg3 fxg3 33. Rc4 Qe7 34. hxg3 Qe2 35. Qb3 Bf5 36. Nf4 Qe8 37. Nxh5 1-0

[Event "Ohio-ch qual"]
[Site "Cleveland"]
[Date "1980.??.??"]
[Round "3"]
[White "Marshall, Calvin"]
[Black "Federl, Alan R"]
[Result "1-0"]
[ECO "B22"]
[PlyCount "47"]
[EventDate "1980.??.??"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "USA"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 c5 2. c3 d5 3. exd5 Qxd5 4. d4 cxd4 5. cxd4 Nc6 6. Nf3 Bg4 7. Nc3 Qd7 8. d5 Bxf3 9. gxf3 0-0-0 10. dxc6 Qxc6 11. Qe2 e5 12. Bh3+ Kb8 13. Be3 Bb4 14. Rc1 Ne7 15. 0-0 Qg6+ 16. Kh1 Qh5 17. Bg2 Nf5 18. Nb5 a6 19. Nc7 Nxe3 20. Qxe3 Bd2 21. Nxa6+ Ka8 22. Nc7+ Kb8 23. Qa3 Bxc1 24. Rxc1 1-0

[Event "Ohio-ch qual"]
[Site "Cleveland"]
[Date "1980.??.??"]
[Round "4"]
[White "Marshall, Calvin"]
[Black "Larocca, Marc"]
[Result "1/2-1/2"]
[ECO "A05"]
[PlyCount "63"]
[EventDate "1980.??.??"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "USA"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. c3 Nf6 4. g3 Nc6 5. d3 g6 6. Bg2 Bg7 7. 0-0 0-0 8. Nbd2 e5 9. a4 h6 10. Nc4 Be6 11. Ne3 Qd7 12. d4 cxd4 13. cxd4 exd4 14. Nxd4 Nxd4 15. Qxd4 Ng4 16. Qd3 Ne5 17. Qe2 Rac8 18. f4 Bc4 19. Nxc4 Nxc4 20. Rb1 Qxa4 21. b3 Qb5 22. Qd3 Na3 23. Qxb5 Nxb5 24. Be3 Rc3 25. Bd2 Rc2 26. Rbd1 Rfc8 27. e5 dxe5 28. fxe5 Bxe5 29. Bxb7 Rd8 30. Bxh6 Rxd1 31. Rxd1 Nd4 32. Re1 1/2-1/2

