[Event "World op 19th"]
[Site "Philadelphia"]
[Date "1991.??.??"]
[Round "6"]
[White "Kolark, D."]
[Black "Yu, Peter"]
[Result "0-1"]
[ECO "C02"]
[PlyCount "66"]
[EventDate "1991.07.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. e5 c5 4. Nf3 cxd4 5. Nxd4 Nc6 6. Nxc6 bxc6 7. Bd3 Ne7 8. 0-0 Ng6 9. Qe2 Qc7 10. f4 c5 11. c4 d4 12. Nd2 Be7 13. Ne4 Rb8 14. Ng3 0-0 15. b3 Bb7 16. Bd2 Bc6 17. Rae1 Bh4 18. Qh5 Qd8 19. Re2 Re8 20. f5 Bxg3 21. hxg3 exf5 22. Bxf5 Bd7 23. Bg5 Qc8 24. e6 Bxe6 25. Rxe6 Rxe6 26. Qg4 Rbb6 27. Bxe6 Qxe6 28. Qf3 Rb8 29. Bf4 Nxf4 30. gxf4 Re8 31. Kh2 Qe4 32. Qh3 Re6 33. Rf3 Rh6 0-1

[Event "World op 18th"]
[Site "Philadelphia"]
[Date "1990.??.??"]
[Round "7"]
[White "Dunne, Alex"]
[Black "Kolark, D."]
[Result "1-0"]
[ECO "D03"]
[WhiteElo "2210"]
[PlyCount "101"]
[EventDate "1990.06.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. Bg5 Bg7 4. Nbd2 d5 5. e3 0-0 6. Bd3 c6 7. c3 b6 8. Qe2 Nbd7 9. 0-0 Bb7 10. e4 dxe4 11. Nxe4 Qc7 12. Rfe1 Rfe8 13. Nxf6+ Bxf6 14. Bxf6 Nxf6 15. Qe5 Qxe5 16. Nxe5 Rad8 17. a4 Nd5 18. a5 f6 19. Nf3 Kf7 20. axb6 axb6 21. Ra7 Rb8 22. Nd2 Bc8 23. Nc4 Rb7 24. Rxb7 Bxb7 25. Be4 b5 26. Na5 Ba8 27. Nb3 Bb7 28. Nc5 Bc8 29. Bxd5+ cxd5 30. f4 e6 31. Ra1 Re7 32. Ra8 Bb7 33. Rh8 Bc6 34. Rxh7+ Kf8 35. Rh8+ Kf7 36. Rh7+ Kf8 37. Rxe7 Kxe7 38. Kf2 Kd6 39. Nd3 Be8 40. h4 Bd7 41. Ke3 Bc6 42. Kd2 Bd7 43. Kc2 Be8 44. Kb3 Bc6 45. Kb4 Be8 46. Ka5 Kc7 47. g4 Kd6 48. Kb6 Bd7 49. g5 f5 50. Ne5 Be8 51. b4 1-0

