[Event "FIN-chT Division-C"]
[Site "Finland"]
[Date "1998.??.??"]
[Round "?"]
[White "Nyman, Karl"]
[Black "Hallikainen, Osmo"]
[Result "1-0"]
[ECO "E81"]
[PlyCount "101"]
[EventDate "1998.??.??"]
[EventType "team-tourn"]
[EventRounds "7"]
[EventCountry "FIN"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 g6 3. e4 d6 4. d4 Bg7 5. f3 0-0 6. Be3 Nbd7 7. Bd3 e5 8. Nge2 Nh5 9. g4 Nf4 10. Bxf4 exf4 11. h4 c5 12. Nd5 cxd4 13. Nexf4 Re8 14. Qe2 f5 15. gxf5 gxf5 16. 0-0-0 Bh6 17. Kb1 Nb6 18. Rdg1+ Kh8 19. Qf2 Bxf4 20. Nxf4 Qf6 21. Nh5 Qe5 22. f4 Qc5 23. Nf6 Be6 24. Nxe8 Rxe8 25. Rc1 a5 26. Rhd1 Nxc4 27. Bxc4 Bxc4 28. Qxd4+ Qxd4 29. Rxd4 Be6 30. Rxd6 fxe4 31. Re1 b5 32. b3 a4 33. Kb2 axb3 34. axb3 Bf5 35. Rd5 Bg4 36. Re5 Rxe5 37. fxe5 Kg7 38. Rxe4 h5 39. Kc3 Kf7 40. Kd4 Ke7 41. b4 Bf3 42. Rf4 Bc6 43. Rf6 Be8 44. Kd5 Kd7 45. Rd6+ Kc7 46. Kc5 Bd7 47. Rh6 Be8 48. Rh7+ Kd8 49. Kd6 Bg6 50. Rh8+ Be8 51. e6 1-0

[Event "FIN-chT 1div C 9798"]
[Site "Finland"]
[Date "1997.??.??"]
[Round "1"]
[White "Hintikka, Eero"]
[Black "Hallikainen, Osmo"]
[Result "1-0"]
[ECO "B07"]
[WhiteElo "2155"]
[PlyCount "50"]
[EventDate "1997.??.??"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "FIN"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. d4 Nf6 2. Bg5 Ne4 3. Bf4 g6 4. f3 Nf6 5. e4 Bg7 6. Nc3 0-0 7. Qd2 d6 8. 0-0-0 Nbd7 9. g4 a5 10. h4 h5 11. e5 Nh7 12. gxh5 gxh5 13. Bh6 f5 14. Qg2 Rf7 15. e6 Kh8 16. Bg5 Nxg5 17. hxg5 Rf8 18. exd7 Bxd7 19. Rxh5+ Kg8 20. f4 c6 21. Nf3 Be8 22. Rh2 b5 23. Qh3 e6 24. Qh7+ Kf7 25. Rh6 Rg8 1-0

[Event "FIN-ch H qual corr"]
[Site "Finland"]
[Date "1978.??.??"]
[Round "?"]
[White "Mujunen, Pertti"]
[Black "Hallikainen, Osmo"]
[Result "1-0"]
[ECO "C10"]
[PlyCount "33"]
[EventDate "1978.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[EventCountry "FIN"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Nf6 5. Bd3 Nbd7 6. Nf3 b6 7. Nxf6+ Nxf6 8. Qe2 Bb7 9. Bg5 Be7 10. 0-0-0 Nd5 11. Bd2 Nb4 12. Bxb4 Bxb4 13. Bb5+ c6 14. d5 cxb5 15. dxe6 Qe7 16. Qxb5+ Kf8 17. Rd7 1-0

[Event "FIN-ch I qual corr"]
[Site "Finland"]
[Date "1976.??.??"]
[Round "?"]
[White "Saarnio, Nillo"]
[Black "Hallikainen, Osmo"]
[Result "1/2-1/2"]
[ECO "C50"]
[PlyCount "71"]
[EventDate "1976.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[EventCountry "FIN"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. d3 Nf6 5. Nc3 d6 6. Be3 Bxe3 7. fxe3 Na5 8. Bb3 Nxb3 9. axb3 0-0 10. 0-0 Bg4 11. Qe1 c6 12. Qg3 Bxf3 13. Rxf3 Re8 14. Raf1 Re6 15. d4 Kh8 16. d5 Re8 17. Qh4 Rf8 18. Rh3 h6 19. Rhf3 Nd7 20. Qxd8 Rfxd8 21. dxc6 bxc6 22. Rxf7 Nf6 23. Rd1 a5 24. Rc7 Ra6 25. Re7 Re8 26. Rxe8+ Nxe8 27. Ra1 Nc7 28. Rd1 Ne8 29. Kf2 g6 30. h4 Kg7 31. Ra1 Nc7 32. Ra4 Kf6 33. b4 axb4 34. Rxb4 Ke6 35. Rb8 Ra8 36. Rxa8 1/2-1/2

[Event "FIN-chT5 corr"]
[Site "Finland"]
[Date "1975.??.??"]
[Round "?"]
[White "Forsell, Lars"]
[Black "Hallikainen, Osmo"]
[Result "0-1"]
[ECO "B45"]
[PlyCount "42"]
[EventDate "1975.??.??"]
[EventType "tourn (corr)"]
[EventRounds "9"]
[EventCountry "FIN"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Nxc6 bxc6 7. e5 Nd5 8. Ne4 Qc7 9. f4 Be7 10. c4 Bb4+ 11. Kf2 Qb6+ 12. Kf3 f5 13. Nd6+ Bxd6 14. cxd5 Bc5 15. d6 Qb4 16. Bd3 Qd4 17. Qf1 g5 18. h3 gxf4 19. Bxf4 Rg8 20. g3 Ba6 21. Rd1 Bxd3 0-1

[Event "FIN corr"]
[Site "Finland"]
[Date "1973.??.??"]
[Round "?"]
[White "Haukilahti, Hannu"]
[Black "Hallikainen, Osmo"]
[Result "1-0"]
[ECO "E87"]
[PlyCount "77"]
[EventDate "1973.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "FIN"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 0-0 6. Be3 e5 7. Nge2 Nbd7 8. d5 Ne8 9. Qd2 f5 10. 0-0-0 f4 11. Bf2 b6 12. Kb1 Nc5 13. Nc1 a6 14. b4 Nd7 15. c5 bxc5 16. bxc5 Nxc5 17. Bxc5 dxc5 18. Na4 Rf6 19. Nb3 Nd6 20. Naxc5 Bf8 21. Qa5 Kh8 22. Be2 Nb7 23. Nxb7 Bxb7 24. Nc5 Bc8 25. Ka1 Bd6 26. Rd2 Qe7 27. Rc2 h5 28. Rhc1 Ra7 29. Bb5 g5 30. Bc6 g4 31. Qe1 Rf7 32. Qf2 a5 33. Ne6 Ra6 34. Bb5 Ra8 35. Nxc7 Rb8 36. Ne8 Bd7 37. Nxd6 Qxd6 38. Bxd7 Qxd7 39. Qh4 1-0

[Event "FIN-ch I2 qual corr"]
[Site "Finland"]
[Date "1971.??.??"]
[Round "?"]
[White "Hallikainen, Osmo"]
[Black "Siltakorpi, Kari"]
[Result "1-0"]
[ECO "D60"]
[PlyCount "41"]
[EventDate "1971.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[EventCountry "FIN"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Bg5 Be7 5. e3 Nbd7 6. Nc3 c6 7. Be2 dxc4 8. Bxc4 0-0 9. 0-0 h6 10. Bxf6 Nxf6 11. Bd3 b6 12. Rc1 Bb7 13. a3 a5 14. h3 b5 15. Ne4 Nd5 16. Ne5 Rc8 17. Nc5 Qc7 18. Ncd7 Rfd8 19. Qh5 g6 20. Bxg6 Bf8 21. Bxf7+ 1-0

