[Event "Philadelphia Int 4th"]
[Site "Philadelphia"]
[Date "1993.??.??"]
[Round "1"]
[White "Fayvinov, Zakhar"]
[Black "Mattson, J."]
[Result "1-0"]
[ECO "A55"]
[PlyCount "101"]
[EventDate "1993.06.25"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 d6 3. Nc3 e5 4. Nf3 Nbd7 5. e4 Be7 6. Be2 0-0 7. 0-0 c6 8. h3 a6 9. d5 cxd5 10. cxd5 b5 11. a3 Nc5 12. Nd2 Bd7 13. b4 Na4 14. Nxa4 bxa4 15. Bd3 Bb5 16. Qe2 Qb6 17. Bb2 Bxd3 18. Qxd3 Nh5 19. g3 a5 20. Bc3 axb4 21. Bxb4 Rac8 22. Rac1 Nf6 23. Nc4 Qa6 24. Rc3 Rfd8 25. Re1 Qa7 26. Na5 Rxc3 27. Qxc3 Qd7 28. Kg2 Rc8 29. Nc6 Bd8 30. Qc4 Ra8 31. Qb5 h6 32. f3 Kh7 33. Rb1 Ne8 34. Bd2 Bf6 35. Rb4 Nc7 36. Qc4 Na6 37. Rxa4 Qb7 38. Bb4 Qb6 39. Qe2 Nxb4 40. Rxb4 Qc5 41. a4 Bd8 42. h4 Bb6 43. Qf1 Rxa4 44. Rxa4 Qc2+ 45. Kh3 Qxa4 46. Qb1 Qa6 47. h5 Qc8+ 48. Kg2 Qa6 49. Qb2 Bc5 50. Ne7 Bd4 51. Qb8 1-0

[Event "Philadelphia Int 4th"]
[Site "Philadelphia"]
[Date "1993.??.??"]
[Round "6"]
[White "Mattson, J."]
[Black "Porubszki, Georg"]
[Result "0-1"]
[ECO "B07"]
[BlackElo "2135"]
[PlyCount "34"]
[EventDate "1993.06.25"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. e4 g6 2. d4 Bg7 3. Nc3 d6 4. g3 c6 5. a4 a5 6. Bg2 Qc7 7. Nge2 e5 8. Be3 Na6 9. 0-0 Nf6 10. h3 0-0 11. Qd2 Re8 12. Rad1 Be6 13. d5 cxd5 14. Nb5 Qd7 15. exd5 Bxh3 16. Nxd6 Bxg2 17. Nxe8 Ne4 0-1

[Event "Philadelphia Int 4th"]
[Site "Philadelphia"]
[Date "1993.??.??"]
[Round "4"]
[White "Mattson, J."]
[Black "Robertson, Mike"]
[Result "1-0"]
[ECO "A80"]
[PlyCount "51"]
[EventDate "1993.06.25"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 d5 2. d4 dxe4 3. Nc3 f5 4. f3 exf3 5. Nxf3 Nf6 6. Bc4 e6 7. Qe2 Bb4 8. Bg5 Nc6 9. d5 Ne7 10. Bxf6 gxf6 11. dxe6 c6 12. Rd1 Qa5 13. 0-0 Bxc3 14. bxc3 b5 15. Bb3 c5 16. Bd5 Rb8 17. Nh4 h5 18. Nxf5 Rb6 19. Qf3 Nxd5 20. Qxd5 Rxe6 21. Ng7+ Kf7 22. Nxe6 Bxe6 23. Qe5 Rh6 24. Rd6 Qxa2 25. Qxc5 Qa5 26. Qe3 1-0

