[Event "US Open-84"]
[Site "Pasadena"]
[Date "1983.08.19"]
[Round "12"]
[White "Brown, Steven A"]
[Black "Marcal, Pedro"]
[Result "0-1"]
[ECO "B78"]
[PlyCount "58"]
[EventDate "1983.08.07"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. Bc4 Nc6 8. f3 0-0 9. Qd2 Bd7 10. 0-0-0 Rc8 11. Bb3 Ne5 12. h4 h5 13. Bh6 Bxh6 14. Qxh6 Rxc3 15. bxc3 Qa5 16. g4 Rc8 17. g5 Qxc3 18. Nf5 Bxf5 19. gxf6 Qa1+ 20. Kd2 Qc3+ 21. Kc1 exf6 22. exf5 Nc4 23. Bxc4 Rxc4 24. Rh2 Qa1+ 25. Kd2 Rd4+ 26. Ke3 Qxd1 27. f4 d5 28. Rg2 Re4+ 29. Kf2 Qe1+ 0-1

[Event "US Open-83"]
[Site "St Paul"]
[Date "1982.08.20"]
[Round "12"]
[White "Marcal, Pedro"]
[Black "Zelkind, Eduard"]
[Result "0-1"]
[ECO "B06"]
[PlyCount "90"]
[EventDate "1982.08.08"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 g6 2. d4 Bg7 3. f4 c6 4. Nf3 d5 5. e5 h5 6. Bd3 Nh6 7. Nbd2 Bf5 8. Nf1 Bxd3 9. Qxd3 e6 10. Bd2 Qb6 11. Ne3 Qa6 12. Qxa6 Nxa6 13. h3 Nf5 14. Nxf5 gxf5 15. 0-0-0 Ke7 16. Rhg1 Rag8 17. Be1 Bh6 18. Bh4+ Kd7 19. Bg5 Rc8 20. c3 c5 21. Kb1 Bg7 22. a3 b6 23. Rc1 c4 24. Rcf1 b5 25. g4 hxg4 26. hxg4 Nb8 27. gxf5 exf5 28. Rh1 Ke6 29. Rfg1 Nd7 30. Bh4 Bh6 31. Bg5 Bg7 32. Bh4 Bh6 33. Bg5 Bxg5 34. Rxh8 Rxh8 35. Rxg5 Rh3 36. Nd2 Nf8 37. Rg8 Ke7 38. Rg5 Ke6 39. Rg8 Ng6 40. Re8+ Kd7 41. Ra8 Nxf4 42. Rxa7+ Ke8 43. Rb7 Nd3 44. Ka1 Rh1+ 45. Nb1 f4 0-1

[Event "US Open-83"]
[Site "St Paul"]
[Date "1982.08.19"]
[Round "11"]
[White "Rawley, Lloyd"]
[Black "Marcal, Pedro"]
[Result "0-1"]
[ECO "B78"]
[PlyCount "72"]
[EventDate "1982.08.08"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 Nc6 8. Qd2 0-0 9. Bc4 Bd7 10. 0-0-0 Rc8 11. Bb3 Ne5 12. h4 h5 13. Qe2 Rxc3 14. bxc3 Qa5 15. Kb1 Rc8 16. c4 a6 17. Qd2 Qc7 18. Rc1 a5 19. Nb5 Bxb5 20. cxb5 a4 21. Bxa4 Nc4 22. Qd3 Qa5 23. Qb3 Nxe3 24. Qxe3 Qxa4 25. Qb3 Qa5 26. c4 Nd7 27. Rc2 Nc5 28. Qe3 Qb4+ 29. Kc1 Na4 30. Qb3 Qxb3 31. axb3 Nc5 32. Ra2 Nxb3+ 33. Kc2 Nd4+ 34. Kd3 Ne6 35. Ra7 Bd4 36. Ra2 Bc5 0-1

[Event "US Open-83"]
[Site "St Paul"]
[Date "1982.08.10"]
[Round "3"]
[White "Marcal, Pedro"]
[Black "Watson, John L"]
[Result "0-1"]
[ECO "C01"]
[BlackElo "2420"]
[PlyCount "56"]
[EventDate "1982.08.08"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. exd5 exd5 4. Bd3 Nc6 5. c3 Bd6 6. Nf3 Bg4 7. 0-0 Nge7 8. Bg5 Qd7 9. Nbd2 f6 10. Be3 0-0-0 11. c4 Nb4 12. Be2 dxc4 13. Nxc4 Nbd5 14. Qb3 Be6 15. Rfc1 Kb8 16. Nfd2 Nf4 17. Bf3 Bd5 18. Ne4 Ne2+ 19. Bxe2 Bxe4 20. Nxd6 Qxd6 21. Rc5 c6 22. Qa4 Nd5 23. Rac1 f5 24. g3 f4 25. Bd2 fxg3 26. hxg3 Rhf8 27. Bf1 Qf6 28. Be1 Qf3 0-1

[Event "US Open-82"]
[Site "Palo Alto"]
[Date "1981.??.??"]
[Round "2"]
[White "Gheorghiu, Florin"]
[Black "Marcal, Pedro"]
[Result "1-0"]
[ECO "B36"]
[WhiteElo "2545"]
[PlyCount "51"]
[EventDate "1981.08.02"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. Nf3 cxd4 4. Nxd4 Nc6 5. Nc3 g6 6. e4 Nxd4 7. Qxd4 d6 8. Be3 Bg7 9. f3 0-0 10. Qd2 Qa5 11. Rc1 Bd7 12. c5 Bc6 13. cxd6 Rfd8 14. Nb5 Qxd2+ 15. Bxd2 Bxb5 16. Bxb5 Rxd6 17. Bb4 Rb6 18. a4 a6 19. Ba5 Re6 20. Be2 Nd7 21. Rc7 b6 22. Bb4 Nc5 23. Bxc5 bxc5 24. Bc4 Re5 25. 0-0 Bh6 26. f4 1-0

[Event "US Open-80"]
[Site "Chicago"]
[Date "1979.08.02"]
[Round "5"]
[White "Marcal, Pedro"]
[Black "Trammell, George"]
[Result "0-1"]
[ECO "B84"]
[PlyCount "60"]
[EventDate "1979.07.29"]
[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 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f4 Qc7 7. Be2 b5 8. a3 Bb7 9. Bf3 Nbd7 10. 0-0 e6 11. Re1 Nb6 12. e5 Bxf3 13. Qxf3 dxe5 14. Rxe5 Bc5 15. Be3 0-0 16. Kh1 Nc4 17. Ndxb5 Nxe5 18. Nxc7 Nxf3 19. Bxc5 Nd2 20. Bxf8 Rxf8 21. Nxa6 Rc8 22. Rd1 Nc4 23. Na4 g6 24. Ra1 Ne4 25. b4 Ne3 26. c3 Nc2 27. Ra2 Rd8 28. h3 Rd1+ 29. Kh2 Ne3 30. Re2 Nf1+ 0-1

