[Event "USA-chT Amateur East"]
[Site "Parsipanny"]
[Date "2009.02.14"]
[Round "2"]
[White "Hahn, Karl"]
[Black "Frieden, Gabriel M"]
[Result "0-1"]
[ECO "B91"]
[PlyCount "52"]
[EventDate "2009.02.14"]
[EventType "team-tourn"]
[EventRounds "6"]
[EventCountry "USA"]
[SourceTitle "CBM 129 Extra"]
[Source "ChessBase"]
[SourceDate "2009.05.05"]
[SourceVersion "2"]
[SourceVersionDate "2009.05.20"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 e5 7. Nf3 Be6 8. Bg2 Be7 9. 0-0 Nbd7 10. Re1 h6 11. Nd5 Nxd5 12. exd5 Bf5 13. b3 0-0 14. Bb2 Rc8 15. c4 Nc5 16. Bf1 Bg4 17. Be2 b6 18. Nd2 Bxe2 19. Qxe2 f5 20. Nf3 Bf6 21. Rac1 e4 22. Nd4 Bxd4 23. Bxd4 Nd3 24. Red1 Nxc1 25. Rxc1 b5 26. Qb2 Qd7 0-1

[Event "MetroWest CC Winter Warmer op"]
[Site "Natick"]
[Date "2003.??.??"]
[Round "4"]
[White "Harvey, Fred"]
[Black "Hahn, Karl"]
[Result "1-0"]
[ECO "D06"]
[PlyCount "61"]
[EventDate "2003.??.??"]
[EventType "swiss"]
[EventRounds "4"]
[EventCountry "USA"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. d4 d5 2. c4 b6 3. Nc3 Bb7 4. Nf3 g6 5. Bf4 Bg7 6. cxd5 Bxd5 7. e4 Bb7 8. Bc4 e6 9. 0-0 Ne7 10. Re1 0-0 11. Rc1 Na6 12. Qd2 Rc8 13. Bg5 c5 14. Nb5 cxd4 15. Nfxd4 Nc5 16. Bxe7 Qxe7 17. Nxa7 Nxe4 18. Nxc8 Rxc8 19. Qe3 Qh4 20. Nf3 Qh5 21. Qxb6 Ba8 22. Bxe6 Rxc1 23. Rxc1 Bf8 24. Bxf7+ Kxf7 25. Qa7+ Be7 26. Qxa8 Ng5 27. Qd5+ Kg7 28. Rc7 Nxf3+ 29. Qxf3 Qe5 30. Qc3 Qxc3 31. Rxc3 1-0

[Event "MetroWest CC Winter Warmer op"]
[Site "Natick"]
[Date "2003.??.??"]
[Round "4"]
[White "Krycka, James"]
[Black "Hahn, Karl"]
[Result "1/2-1/2"]
[ECO "E90"]
[PlyCount "103"]
[EventDate "2003.??.??"]
[EventType "swiss"]
[EventRounds "4"]
[EventCountry "USA"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 g6 3. d4 Bg7 4. Nc3 d6 5. e4 0-0 6. Bd3 b6 7. 0-0 Bb7 8. b3 Nc6 9. Re1 Nd7 10. Bb2 Nxd4 11. Be2 Nxe2+ 12. Rxe2 e5 13. Qd2 Nc5 14. b4 Ne6 15. Ree1 Nf4 16. Nd5 Bh6 17. Qc2 Bxd5 18. cxd5 f5 19. Bc1 Qd7 20. g3 fxe4 21. Qxe4 Nh3+ 22. Kg2 Bxc1 23. Raxc1 Rf5 24. Re3 Ng5 25. Nxg5 Rxg5 26. Rf3 Rg4 27. Rxc7 Rxe4 28. Rxd7 Rxb4 29. Rxd6 Rb2 30. a3 Rf8 31. Re6 Rd8 32. Rxe5 Rd2 33. Rfe3 R2xd5 34. Re8+ Rxe8 35. Rxe8+ Kf7 36. Ra8 Ra5 37. Rb8 Rxa3 38. Rb7+ Kg8 39. Rb8+ Kg7 40. Rb7+ Kh6 41. h4 Ra5 42. Kh3 g5 43. hxg5+ Rxg5 44. Rxa7 Rh5+ 45. Kg4 Kg6 46. Rb7 Rb5 47. f4 h5+ 48. Kh4 Rb4 49. Rb8 Rb5 50. g4 hxg4 51. Kxg4 Kf6 52. Rb7 1/2-1/2

