[Event "Naantali op"]
[Site "Naantali"]
[Date "2011.07.10"]
[Round "9"]
[White "Kahonen, Osmo"]
[Black "Ruotanen, Helge"]
[Result "0-1"]
[ECO "B06"]
[BlackElo "1995"]
[PlyCount "96"]
[EventDate "2011.07.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "FIN"]
[SourceTitle "CBM 143 Extra"]
[Source "ChessBase"]
[SourceDate "2011.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2011.08.29"]
[SourceQuality "1"]

1. e4 g6 2. Bc4 Nc6 3. d4 Bg7 4. Ne2 e5 5. c3 Nf6 6. f3 0-0 7. Bg5 h6 8. Bh4 g5 9. Bg3 exd4 10. cxd4 d5 11. exd5 Nxd5 12. Bxd5 Qxd5 13. Nbc3 Qc4 14. b3 Qb4 15. a3 Qe7 16. 0-0 Nxd4 17. Re1 Qc5 18. Bf2 Nxe2+ 19. Nxe2 Qa5 20. b4 Qa6 21. Ng3 Be6 22. Nh5 Rfd8 23. Qc1 Bh8 24. h4 Qd3 25. hxg5 hxg5 26. Qxg5+ Qg6 27. Qxg6+ fxg6 28. Nf4 Bxa1 29. Nxe6 Re8 30. Nxc7 Rxe1+ 31. Bxe1 Rc8 32. Bg3 Kf7 33. Kf2 Bd4+ 34. Ke2 Bb6 35. Nd5 Rc2+ 36. Kf1 Bd4 37. b5 Ke6 38. Nb4 Rc1+ 39. Ke2 Rg1 40. Kd3 Bb6 41. Ke4 Rxg2 42. Bb8 g5 43. a4 Re2+ 44. Kd3 Re3+ 45. Kc4 Rxf3 46. a5 Bxa5 47. Bxa7 Rf4+ 48. Bd4 Bxb4 0-1

[Event "Naantali op"]
[Site "Naantali"]
[Date "2011.07.09"]
[Round "8"]
[White "Valkonen, Jouni"]
[Black "Kahonen, Osmo"]
[Result "0-1"]
[ECO "B01"]
[PlyCount "88"]
[EventDate "2011.07.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "FIN"]
[SourceTitle "CBM 143 Extra"]
[Source "ChessBase"]
[SourceDate "2011.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2011.08.29"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd6 4. d4 Nf6 5. g3 c6 6. Bg2 Bg4 7. Nge2 e6 8. Bf4 Qb4 9. Qd2 Nbd7 10. Rb1 Be7 11. a3 Qa5 12. 0-0 h6 13. Rfe1 a6 14. Ne4 Qxd2 15. Nxd2 Nd5 16. Bf3 Bf5 17. Be4 g5 18. Bxf5 exf5 19. Be3 Rg8 20. Kh1 N7f6 21. c4 Nc7 22. Nf3 Rd8 23. Ne5 Kf8 24. f4 Ne4 25. Nc3 f6 26. Nf3 Kf7 27. Rbd1 Ne8 28. d5 Nxc3 29. bxc3 c5 30. Rb1 Rd7 31. Nd2 Bd6 32. fxg5 hxg5 33. Nb3 Rc7 34. Na5 Rh8 35. Rf1 Bxg3 36. Rxf5 Kg6 37. Rf3 Rch7 38. Rb2 Bxh2 39. Kg2 Bc7 40. Rxb7 Rh2+ 41. Kf1 Rh1+ 42. Ke2 R8h2+ 43. Kd3 Rd1+ 44. Ke4 Nd6# 0-1

[Event "Naantali op"]
[Site "Naantali"]
[Date "2011.07.08"]
[Round "7"]
[White "Koskinen, Erkki"]
[Black "Kahonen, Osmo"]
[Result "1/2-1/2"]
[ECO "D52"]
[WhiteElo "1961"]
[PlyCount "54"]
[EventDate "2011.07.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "FIN"]
[SourceTitle "CBM 143 Extra"]
[Source "ChessBase"]
[SourceDate "2011.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2011.08.29"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Nbd7 5. Nf3 c6 6. e3 Qa5 7. Nd2 Bd6 8. Bd3 h6 9. Bh4 Bb8 10. 0-0 g5 11. Bg3 h5 12. e4 dxe4 13. Ndxe4 g4 14. Bxb8 Rxb8 15. Qe2 Qd8 16. d5 Ne5 17. Rad1 cxd5 18. cxd5 Kf8 19. Bc2 exd5 20. Nxf6 Qxf6 21. Nxd5 Qg5 22. Qe3 Qxe3 23. fxe3 Be6 24. Nf4 Rh6 25. Nxe6+ Rxe6 26. Bb3 Re7 27. Rf5 Kg7 1/2-1/2

[Event "Naantali op"]
[Site "Naantali"]
[Date "2011.07.07"]
[Round "5"]
[White "Kahonen, Osmo"]
[Black "Puuska, Heini"]
[Result "0-1"]
[ECO "B34"]
[BlackElo "1999"]
[PlyCount "100"]
[EventDate "2011.07.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "FIN"]
[SourceTitle "CBM 143 Extra"]
[Source "ChessBase"]
[SourceDate "2011.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2011.08.29"]
[SourceQuality "1"]

1. e4 c5 2. d4 g6 3. Nf3 Bg7 4. Bc4 cxd4 5. Nxd4 Nc6 6. Nxc6 bxc6 7. 0-0 e6 8. Re1 Qa5 9. Bb3 Ne7 10. Bd2 Qc7 11. Bc3 f6 12. a4 0-0 13. Nd2 d5 14. Nf3 Kh8 15. e5 f5 16. Qd2 c5 17. Ba5 Qb7 18. Qe2 Bd7 19. Bc3 Rfc8 20. Ng5 Kg8 21. a5 Bb5 22. Qf3 Qd7 23. Ba2 h6 24. Nh3 g5 25. Qd1 Ng6 26. g4 fxg4 27. Qxg4 Rf8 28. Rad1 Rae8 29. b4 Nh4 30. f4 Qe7 31. bxc5 Qxc5+ 32. Bd4 Qe7 33. Kh1 Bc4 34. Bb1 gxf4 35. Nxf4 Rf5 36. Nxe6 Qxe6 37. Qxh4 Rg5 38. c3 Rb8 39. Qf2 Rf8 40. Qc2 Qh3 41. Qh7+ Kf7 42. e6+ Ke8 43. Bg6+ Kd8 44. e7+ Kc7 45. Be4 dxe4 46. Bb6+ axb6 47. axb6+ Kxb6 48. Rd6+ Kc7 49. e8N+ Rxe8 50. Rd7+ Qxd7 0-1

[Event "Naantali op"]
[Site "Naantali"]
[Date "2011.07.07"]
[Round "6"]
[White "Kahonen, Osmo"]
[Black "Toropainen, Jarkko"]
[Result "1/2-1/2"]
[ECO "B04"]
[PlyCount "87"]
[EventDate "2011.07.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "FIN"]
[SourceTitle "CBM 143 Extra"]
[Source "ChessBase"]
[SourceDate "2011.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2011.08.29"]
[SourceQuality "1"]

1. e4 Nf6 2. e5 Nd5 3. Nf3 g6 4. d4 d6 5. c4 Nb6 6. Bf4 Bg7 7. Nc3 0-0 8. Be2 dxe5 9. dxe5 a6 10. 0-0 N8d7 11. b4 c5 12. Ne4 Qc7 13. Bg3 Nxe5 14. Nxc5 Nxf3+ 15. Bxf3 e5 16. Be2 Rd8 17. Qb3 Bf8 18. Ne4 Bg7 19. c5 Nd5 20. Rfd1 Be6 21. Bc4 Nf4 22. Bh4 Rd4 23. Bxe6 Nxe6 24. Rxd4 Nxd4 25. Qc4 b6 26. Re1 bxc5 27. Nf6+ Kh8 28. Nd5 Qc6 29. bxc5 Rc8 30. Be7 Nf5 31. Nb4 Qc7 32. Nd5 Qc6 33. Rc1 Qe6 34. Bg5 f6 35. Be3 Bf8 36. c6 Nd6 37. Qb3 Nb5 38. Nb6 Qxb3 39. axb3 Rc7 40. Nd5 Rc8 41. Nxf6 Bd6 42. Bb6 Kg7 43. Ne4 Ba3 44. Rc2 1/2-1/2

[Event "Naantali op"]
[Site "Naantali"]
[Date "2011.07.06"]
[Round "4"]
[White "Smeds, Tom"]
[Black "Kahonen, Osmo"]
[Result "1/2-1/2"]
[ECO "A03"]
[WhiteElo "1952"]
[PlyCount "128"]
[EventDate "2011.07.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "FIN"]
[SourceTitle "CBM 143 Extra"]
[Source "ChessBase"]
[SourceDate "2011.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2011.08.29"]
[SourceQuality "1"]

1. f4 d5 2. Nf3 Nf6 3. g3 c5 4. Bg2 Bf5 5. 0-0 e6 6. c3 Nc6 7. d3 h6 8. e3 Be7 9. b3 0-0 10. Bb2 Ne8 11. Qe2 Nd6 12. Nbd2 Bg4 13. e4 d4 14. Qf2 dxc3 15. Bxc3 Nb5 16. Rac1 Qxd3 17. Bb2 Bxf3 18. Nxf3 Rad8 19. Rfe1 Nbd4 20. Nxd4 Nxd4 21. e5 b6 22. Be4 Qb5 23. Rc4 Rd7 24. Qg2 a5 25. g4 Rfd8 26. g5 hxg5 27. fxg5 g6 28. h4 Qa6 29. h5 b5 30. Rc3 Nf5 31. hxg6 fxg6 32. Bxf5 gxf5 33. g6 Rd4 34. Rg3 Rh4 35. Bc1 Rdd4 36. Be3 Rdg4 37. Bf2 Rxg3 38. Bxg3 Rg4 39. Qh3 Rxg6 40. Kh2 Bf8 41. Bf4 Qb7 42. Rg1 Rxg1 43. Kxg1 c4 44. bxc4 bxc4 45. Qf1 Qe4 46. Qf2 c3 47. Qg3+ Kf7 48. Qg5 Qe1+ 49. Kg2 Qe2+ 50. Kh1 Be7 51. Qh6 Qe1+ 52. Kg2 Qh4 53. Qxh4 Bxh4 54. Kf1 Be7 55. Ke2 Ba3 56. Kd3 Bb2 57. a4 Ke7 58. Be3 Kd7 59. Bb6 Kc6 60. Bxa5 Kd5 61. Bb6 Kxe5 62. a5 c2 63. Kxc2 Bd4 64. Bxd4+ Kd6 1/2-1/2

[Event "Naantali op"]
[Site "Naantali"]
[Date "2011.07.05"]
[Round "3"]
[White "Kahonen, Osmo"]
[Black "Raivio, Erkki"]
[Result "1-0"]
[ECO "B18"]
[BlackElo "1822"]
[PlyCount "91"]
[EventDate "2011.07.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "FIN"]
[SourceTitle "CBM 143 Extra"]
[Source "ChessBase"]
[SourceDate "2011.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2011.08.29"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. Nf3 Nf6 7. Ne5 Nbd7 8. Nxg6 hxg6 9. Bc4 e6 10. Qe2 Nb6 11. Be3 Nxc4 12. Qxc4 Qd5 13. Qb3 Qxb3 14. axb3 Nd5 15. Bd2 Nb4 16. Kd1 a6 17. Ra4 Nd5 18. Ne4 0-0-0 19. Ng5 Rd7 20. g3 Nb6 21. Ra2 Rxd4 22. Nxf7 Rh5 23. Kc1 Rdd5 24. f4 Be7 25. h4 Nd7 26. Re1 Nf8 27. Ra4 Bf6 28. Bc3 Rd7 29. Ng5 Bxg5 30. fxg5 Rf7 31. Rd4 Rh8 32. Ba5 Nd7 33. Rxe6 b6 34. Be1 c5 35. Rde4 Rhf8 36. Rxg6 Kb7 37. h5 Nb8 38. Rge6 Nc6 39. g4 Rf4 40. g6 Rxe4 41. Rxe4 Kc7 42. Bc3 Rf1+ 43. Kd2 Rf2+ 44. Ke3 Rxc2 45. h6 gxh6 46. g7 1-0

[Event "Naantali op"]
[Site "Naantali"]
[Date "2011.07.05"]
[Round "2"]
[White "Pohjala, Henri"]
[Black "Kahonen, Osmo"]
[Result "1-0"]
[ECO "D45"]
[WhiteElo "2241"]
[PlyCount "69"]
[EventDate "2011.07.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "FIN"]
[SourceTitle "CBM 143 Extra"]
[Source "ChessBase"]
[SourceDate "2011.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2011.08.29"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. c4 e6 4. Nc3 c6 5. e3 Be7 6. Qc2 Nbd7 7. Bd3 0-0 8. cxd5 exd5 9. g4 g6 10. g5 Nh5 11. h4 Re8 12. Bd2 Nf8 13. Ne5 Bd6 14. 0-0-0 Qc7 15. e4 Ne6 16. Ng4 Bf8 17. Nh6+ Bxh6 18. gxh6 Nxd4 19. Qa4 Nf3 20. exd5 b5 21. Qb4 Nxd2 22. Rxd2 cxd5 23. Bxb5 Re4 24. Qb3 d4 25. Qc4 Qxc4 26. Bxc4 Rf4 27. Nd5 Re4 28. f3 Re5 29. Rxd4 Bf5 30. Rhd1 Kf8 31. Nc7 Rc8 32. Rd8+ Ke7 33. Rxc8 Bxc8 34. Nd5+ Ke8 35. f4 1-0

[Event "Naantali op"]
[Site "Naantali"]
[Date "2011.07.04"]
[Round "1"]
[White "Kahonen, Osmo"]
[Black "Paronen, Petteri"]
[Result "1/2-1/2"]
[ECO "B21"]
[BlackElo "2145"]
[PlyCount "42"]
[EventDate "2011.07.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "FIN"]
[SourceTitle "CBM 143 Extra"]
[Source "ChessBase"]
[SourceDate "2011.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2011.08.29"]
[SourceQuality "1"]

1. e4 c5 2. d4 cxd4 3. c3 d3 4. Bxd3 d6 5. f4 Nf6 6. Nf3 e6 7. 0-0 Be7 8. Qe2 Nc6 9. Kh1 Qc7 10. Na3 a6 11. Be3 b5 12. Nc2 Rb8 13. Rac1 0-0 14. Ncd4 Bb7 15. Bf2 e5 16. fxe5 Nxe5 17. Nxe5 dxe5 18. Nf5 Bc5 19. Nh6+ Kh8 20. Bh4 Ne8 21. Nf5 f6 1/2-1/2

