[Event "Valle d'Aosta op 11th"]
[Site "Saint Vincent"]
[Date "2003.02.08"]
[Round "1"]
[White "Heikkila, Heikki"]
[Black "Golod, Vitali"]
[Result "0-1"]
[ECO "A20"]
[WhiteElo "2220"]
[BlackElo "2532"]
[PlyCount "80"]
[EventDate "2003.02.08"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ITA"]
[SourceTitle "CBM 092 Extra"]
[Source "ChessBase"]
[SourceDate "2003.03.07"]
[SourceVersion "1"]
[SourceVersionDate "2003.03.07"]
[SourceQuality "1"]

1. c4 Nf6 2. g3 e5 3. Bg2 c6 4. d4 Bb4+ 5. Nc3 Qa5 6. dxe5 Bxc3+ 7. bxc3 Qxc3+ 8. Bd2 Qxe5 9. Nf3 Qe7 10. Nd4 0-0 11. Rb1 Ne4 12. 0-0 Nxd2 13. Qxd2 d6 14. Rb3 Na6 15. Re3 Qf6 16. f4 Bd7 17. Rb1 Nc5 18. Nb3 Rad8 19. Qb2 Qxb2 20. Rxb2 Na4 21. Rc2 Rfe8 22. Rxe8+ Bxe8 23. Kf2 f6 24. Na5 Nc5 25. g4 g5 26. f5 h5 27. h3 h4 28. Rd2 Kf8 29. Nb3 Ke7 30. Rb2 Na4 31. Rd2 Bf7 32. Na5 Nc5 33. Ke3 Kd7 34. Kd4 Kc7 35. Nb3 b6 36. Kc3 Re8 37. Nd4 Re3+ 38. Kc2 Bxc4 39. Bxc6 Rxh3 40. a4 Nb3 0-1

[Event "Hessenliga"]
[Site "Germany"]
[Date "1995.??.??"]
[Round "?"]
[White "Esterluss, Johannes"]
[Black "Heikkila, Heikki"]
[Result "1/2-1/2"]
[ECO "B83"]
[PlyCount "26"]
[EventDate "1995.??.??"]
[EventType "team"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "GER"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. f4 Nc6 7. Be3 e5 8. Nf3 Be7 9. Qd2 0-0 10. Be2 exf4 11. Bxf4 Be6 12. Ng5 Bc8 13. 0-0-0 Qa5 1/2-1/2

[Event "Hessenliga"]
[Site "Germany"]
[Date "1995.??.??"]
[Round "?"]
[White "Heikkila, Heikki"]
[Black "Stimpel, Franz"]
[Result "0-1"]
[ECO "A53"]
[BlackElo "2255"]
[PlyCount "50"]
[EventDate "1995.??.??"]
[EventType "team"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "GER"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 d6 3. Nf3 Nbd7 4. g3 e5 5. Bg2 c6 6. 0-0 Be7 7. Qc2 0-0 8. Rd1 Qc7 9. b3 Re8 10. Nbd2 b6 11. Nf1 Bb7 12. Bb2 Rac8 13. Rac1 Qb8 14. dxe5 dxe5 15. Ng5 Nf8 16. Ne3 g6 17. h4 Bc5 18. Rd3 Rcd8 19. Rcd1 Rxd3 20. Qxd3 Qc7 21. Nf3 Bc8 22. a3 a5 23. Nf1 Bf5 24. e4 Nxe4 25. Ne3 Nxf2 0-1

[Event "Hessenliga"]
[Site "Germany"]
[Date "1995.??.??"]
[Round "?"]
[White "Heikkila, Heikki"]
[Black "Weise, Martin"]
[Result "0-1"]
[ECO "C06"]
[BlackElo "2230"]
[PlyCount "118"]
[EventDate "1995.??.??"]
[EventType "team"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "GER"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 Nf6 4. e5 Nfd7 5. Bd3 c5 6. c3 b6 7. Ne2 Ba6 8. Bxa6 Nxa6 9. Qa4 Nc7 10. 0-0 b5 11. Qd1 a5 12. f4 g6 13. Nf3 b4 14. g4 h5 15. h3 hxg4 16. hxg4 Be7 17. Kg2 Nb6 18. Rh1 Rxh1 19. Qxh1 Kd7 20. dxc5 Bxc5 21. b3 Qg8 22. Bd2 Qg7 23. Qe1 bxc3 24. Bxc3 Rh8 25. Bxa5 Qh6 26. Qg3 Na6 27. Ng5 Ke7 28. a3 Nd7 29. b4 Ba7 30. Rc1 Nxe5 31. Qh3 Qxh3+ 32. Nxh3 Nc4 33. b5 Nxa5 34. bxa6 Nc4 35. a4 Rb8 36. Ng5 f6 37. Nf3 Rb6 38. Rh1 Rxa6 39. Rh7+ Kd6 40. Ned4 Bxd4 41. Nxd4 Kc5 42. Nf3 e5 43. Rc7+ Kb4 44. Rg7 e4 45. Nd4 f5 46. g5 Kc3 47. Nb5+ Kd3 48. Rd7 Ne3+ 49. Kh3 Rxa4 50. Rd6 Kc4 51. Nc7 d4 52. Rxg6 Ra1 53. Rc6+ Kd3 54. Ne6 Ke2 55. g6 d3 56. g7 d2 57. g8Q Rh1+ 58. Kg3 Rg1+ 59. Kh2 Rxg8 0-1

[Event "Hessenliga"]
[Site "Germany"]
[Date "1995.??.??"]
[Round "?"]
[White "Karabalis, Harilos"]
[Black "Heikkila, Heikki"]
[Result "1-0"]
[ECO "B40"]
[WhiteElo "2225"]
[PlyCount "71"]
[EventDate "1995.??.??"]
[EventType "team"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "GER"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d3 b6 4. Nbd2 Nc6 5. g3 Ba6 6. Bg2 Nge7 7. 0-0 Qc7 8. Re1 Ng6 9. Nc4 0-0-0 10. c3 d5 11. exd5 Rxd5 12. Ng5 Rd7 13. Qe2 Bd6 14. d4 Kb8 15. dxc5 Bxc5 16. b4 Rd5 17. Rb1 Nxb4 18. Bxd5 exd5 19. cxb4 Bxc4 20. Qb2 Bd6 21. Qxg7 Rf8 22. Nxh7 Rd8 23. Bg5 Rc8 24. Nf6 Be5 25. Qh7 Ka8 26. Qh3 Rd8 27. Ng4 Rh8 28. Qg2 Bd6 29. Nf6 Qc6 30. b5 Bxb5 31. Nxd5 Kb8 32. Rec1 Qd7 33. a4 Bc6 34. Nxb6 axb6 35. Rxb6+ Bb7 36. Rcb1 1-0

[Event "Rilton Cup-07 1977/78"]
[Site "Stockholm"]
[Date "1977.12.30"]
[Round "4"]
[White "Happel, Henk"]
[Black "Heikkila, Heikki"]
[Result "1-0"]
[ECO "E24"]
[WhiteElo "2400"]
[PlyCount "79"]
[EventDate "1977.12.27"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SWE"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. f3 c5 5. a3 Bxc3+ 6. bxc3 cxd4 7. cxd4 d5 8. cxd5 exd5 9. e3 Nh5 10. Ne2 0-0 11. g3 f5 12. Bg2 Qa5+ 13. Bd2 Qa6 14. 0-0 Nc6 15. Re1 Nd8 16. Bb4 Rf7 17. Nc3 Qc6 18. e4 a5 19. exd5 Qd7 20. Na4 axb4 21. Nb6 Qb5 22. Nxa8 f4 23. Qb3 fxg3 24. hxg3 Nxg3 25. Qxb4 Bd7 26. Qxb5 Bxb5 27. Kf2 Nh5 28. a4 Bd7 29. Nb6 Nf6 30. Rac1 Bf5 31. d6 Nc6 32. Kg1 Nxd4 33. Rc7 Ne6 34. d7 Rf8 35. Rxb7 Nc5 36. Rc7 Ncxd7 37. Nxd7 Bxd7 38. a5 Rd8 39. Rd1 Ra8 40. Ra1 1-0

[Event "Rilton Cup-07 1977/78"]
[Site "Stockholm"]
[Date "1977.12.28"]
[Round "2"]
[White "Olsson, Ake"]
[Black "Heikkila, Heikki"]
[Result "0-1"]
[ECO "B83"]
[PlyCount "64"]
[EventDate "1977.12.27"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SWE"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 Be7 7. 0-0 0-0 8. f4 Nc6 9. Be3 e5 10. fxe5 Nxe5 11. Nf5 Bxf5 12. Rxf5 Qc8 13. Qf1 Qe6 14. Nb5 Bd8 15. Nd4 Qc8 16. Qf4 Re8 17. Rf1 Ng6 18. Qxd6 Rxe4 19. Rc5 Qd7 20. Rxf6 Qxd6 21. Rxd6 Be7 22. Nf5 Bxd6 23. Nxd6 Rxe3 24. Bf3 b6 25. Rc7 Rd8 26. Nf5 Re5 27. g4 Rc5 28. Rxa7 Rxc2 29. Bd5 Nf4 30. Bxf7+ Kf8 31. Ne3 Re2 32. Nf1 Nh3+ 0-1

[Event "Bundesliga 1976/77 West"]
[Site "Germany West"]
[Date "1976.??.??"]
[Round "?"]
[White "Schiffer, Karl Josef"]
[Black "Heikkila, Heikki"]
[Result "1-0"]
[ECO "D10"]
[PlyCount "61"]
[EventDate "1976.10.10"]
[EventType "team-tourn"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Bg5 dxc4 5. a4 Bf5 6. f3 Nbd7 7. e4 Be6 8. Nge2 h6 9. Be3 g5 10. h4 Rg8 11. hxg5 hxg5 12. a5 Nb8 13. Qd2 Na6 14. Bxg5 Nb4 15. Be3 Nd3+ 16. Kd1 b5 17. Nc1 Nxc1 18. Kxc1 Qd7 19. g4 0-0-0 20. g5 Ne8 21. f4 f5 22. d5 cxd5 23. exd5 Bf7 24. a6 Nd6 25. Ra5 Bg7 26. Bd4 Bxd4 27. Qxd4 Qc7 28. Nxb5 Qxa5 29. Qc5+ Kb8 30. Qxa7+ Kc8 31. Qa8+ 1-0

[Event "Bundesliga 1975 West"]
[Site "Germany"]
[Date "1975.04.27"]
[Round "6.3"]
[White "Lentze, Ingo"]
[Black "Heikkila, Heikki"]
[Result "0-1"]
[ECO "B08"]
[PlyCount "118"]
[EventDate "1975.01.05"]
[EventType "team-tourn"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]
[WhiteTeam "Muenster 32"]
[BlackTeam "Frankfurt Koenigsspringer"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 g6 2. d4 Bg7 3. Nc3 c6 4. Nf3 d6 5. Be2 Nf6 6. 0-0 0-0 7. a4 b6 8. h3 a6 9. Be3 Bb7 10. Qd2 b5 11. Bh6 b4 12. Bxg7 Kxg7 13. e5 dxe5 14. dxe5 Qxd2 15. exf6+ exf6 16. Nxd2 bxc3 17. Ne4 cxb2 18. Rab1 a5 19. Rfd1 Ba6 20. Bf3 Bc4 21. Nd6 Be6 22. Rxb2 Ra6 23. Rb7 Nd7 24. Ne4 Ne5 25. Be2 Raa8 26. Nc5 Bc8 27. Re7 g5 28. Rd6 Rb8 29. Ne4 Rb1+ 30. Kh2 Re1 31. Ng3 Ng6 32. Ra7 Nf4 33. Bg4 Kg6 34. Rxc6 Be6 35. Rxa5 Bd5 36. Bf5+ Kh6 37. Rxf6+ Kg7 38. Rb6 Bxg2 39. Nh5+ Nxh5 40. Kxg2 Nf4+ 41. Kf3 Ng6 42. Kg3 Nh4 43. Kg4 Rg1+ 44. Kh5 Ng6 45. Bg4 h6 46. Rf5 Nf4+ 47. Rxf4 gxf4 48. Rxh6 Ra8 49. Rc6 Ra5+ 50. Kh4 Rxa4 51. Kg5 f3 52. Rc3 Re1 53. Rxf3 Re5+ 54. Bf5 f6+ 55. Kh5 Rc4 56. h4 Ra5 57. c3 Kf7 58. Rh3 Rxf5+ 59. Kh6 Rc8 0-1

[Event "Bundesliga 1975 West"]
[Site "Germany"]
[Date "1975.04.06"]
[Round "5.3"]
[White "Heikkila, Heikki"]
[Black "Borngaesser, Rene"]
[Result "1-0"]
[ECO "A10"]
[PlyCount "97"]
[EventDate "1975.01.05"]
[EventType "team-tourn"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]
[WhiteTeam "Frankfurt Koenigsspringer"]
[BlackTeam "Duesseldorf Rochade"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. c4 f5 2. Nf3 Nf6 3. g3 g6 4. Bg2 Bg7 5. 0-0 0-0 6. Qb3 Nc6 7. d4 d6 8. Rd1 Kh8 9. Bd2 Ne4 10. Be1 e6 11. Nc3 Bd7 12. Qc2 Nxc3 13. Bxc3 Ne7 14. Ne1 Rb8 15. Nd3 g5 16. f4 Ng6 17. e3 Qe7 18. Qe2 b5 19. c5 gxf4 20. c6 f3 21. Bxf3 Be8 22. Nf4 b4 23. Be1 Nxf4 24. exf4 Bf6 25. Bf2 d5 26. Re1 Bxc6 27. Qxe6 Qxe6 28. Rxe6 Bb7 29. Rc1 c6 30. Bh5 Kg7 31. h3 Rbc8 32. Rc5 Rc7 33. Ra5 Bc8 34. Re1 Rd8 35. Rc1 Be7 36. Kg2 Be6 37. Be2 Bd6 38. Kf3 Bf7 39. Bd3 Bh5+ 40. g4 Bg6 41. Bxf5 Rf8 42. Bxg6 Rxf4+ 43. Kg2 hxg6 44. Ra6 Re7 45. Rc2 Bc7 46. Rxa7 Bd6 47. Ra6 b3 48. axb3 Rfe4 49. Rcxc6 1-0

[Event "Bundesliga 1975 West"]
[Site "Germany"]
[Date "1975.03.09"]
[Round "4.4"]
[White "Heikkila, Heikki"]
[Black "Krueger, Erich"]
[Result "0-1"]
[ECO "E62"]
[PlyCount "112"]
[EventDate "1975.01.05"]
[EventType "team-tourn"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]
[WhiteTeam "Frankfurt Koenigsspringer"]
[BlackTeam "Essen Schachgesellschaft 04"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 0-0 5. Bg2 d6 6. Nc3 Nc6 7. 0-0 Bg4 8. h3 Bxf3 9. Bxf3 Nd7 10. Nb5 a6 11. Na3 Nxd4 12. Bxb7 Rb8 13. Bg2 Ne6 14. Rb1 c5 15. Qe1 Qc7 16. b3 Nd4 17. Bd2 Ne5 18. Rc1 Nec6 19. e3 Nxb3 20. axb3 Bb2 21. Nb1 Bxc1 22. Qxc1 Rxb3 23. Nc3 Nb4 24. Qa1 Rb8 25. Qa4 Rb2 26. Bc1 Rc2 27. Nd5 Qd8 28. Nxb4 Rxc4 29. Qxa6 Rcxb4 30. Qc6 R8b6 31. Qf3 Rb1 32. h4 h5 33. g4 hxg4 34. Qxg4 e6 35. h5 R6b4 36. e4 Qf6 37. f4 Rc4 38. e5 dxe5 39. Be3 Rxf1+ 40. Bxf1 Re4 41. Qf3 Rb4 42. Bd3 exf4 43. Qa8+ Kg7 44. h6+ Kxh6 45. Qf8+ Kh7 46. Bxc5 Qg5+ 47. Kf1 Rb7 48. Bd4 e5 49. Qc8 Re7 50. Bc5 Re6 51. Bc4 f3 52. Qf8 Rf6 53. Bd3 Qc1+ 54. Kf2 Qd1 55. Kg3 Qxd3 56. Bf2 Qf1 0-1

[Event "Bundesliga 1975 West"]
[Site "Germany"]
[Date "1975.01.26"]
[Round "2.4"]
[White "Heikkila, Heikki"]
[Black "Niebling, Ferdinand"]
[Result "1-0"]
[ECO "E56"]
[PlyCount "129"]
[EventDate "1975.01.05"]
[EventType "team-tourn"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]
[WhiteTeam "Frankfurt Koenigsspringer"]
[BlackTeam "Hofheim"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 0-0 5. Bd3 d5 6. Nf3 c5 7. 0-0 Nc6 8. a3 dxc4 9. Bxc4 Ba5 10. Qd3 a6 11. Ba2 b5 12. Ne4 c4 13. Nxf6+ Qxf6 14. Qe4 Bb7 15. Bb1 g6 16. Ne5 Rfc8 17. Nd7 Qe7 18. Nc5 Ra7 19. Nxb7 Rxb7 20. Qc2 Bb6 21. Ba2 Qd8 22. Bd2 Rd7 23. Bc3 a5 24. Qe2 a4 25. Bb1 f5 26. Kh1 Qe7 27. Bc2 Rcd8 28. Qf3 Na5 29. Rae1 Qd6 30. Qh3 Nb3 31. Bb4 Qc7 32. Bb1 Rf7 33. Rd1 Rdd7 34. f3 Ba5 35. Bc3 Bxc3 36. bxc3 Qd6 37. e4 Qxa3 38. d5 Qe7 39. Bc2 a3 40. dxe6 Qxe6 41. exf5 Rxd1 42. Rxd1 gxf5 43. Qg3+ Qg6 44. Qb8+ Kg7 45. Qa8 Re7 46. Qxa3 Qe6 47. Rg1 Rd7 48. g4 f4 49. Qa8 Rd2 50. Qb7+ Qd7 51. Qe4 Kg8 52. Re1 Nc5 53. Qa8+ Kg7 54. Bf5 Qf7 55. Ra1 Na4 56. Qb8 Qd5 57. Qc7+ Kf6 58. g5+ Kxf5 59. Qxh7+ Ke6 60. Re1+ Kd6 61. Qe7+ Kc6 62. Re6+ Qd6 63. g6 Nc5 64. Rxd6+ Rxd6 65. g7 1-0

[Event "Bundesliga 1975 West"]
[Site "Germany"]
[Date "1975.01.05"]
[Round "1.4"]
[White "Heikkila, Heikki"]
[Black "O'Kelly de Galway, Alberic"]
[Result "1/2-1/2"]
[ECO "E55"]
[PlyCount "102"]
[EventDate "1975.01.05"]
[EventType "team-tourn"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]
[WhiteTeam "Frankfurt Koenigsspringer"]
[BlackTeam "Solingen SG"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 0-0 6. Nf3 d5 7. 0-0 dxc4 8. Bxc4 Nbd7 9. Qb3 a6 10. Rd1 b5 11. Be2 Qe7 12. a4 bxa4 13. Nxa4 a5 14. e4 Nxe4 15. Ne5 Nxe5 16. dxe5 Bb7 17. Be3 f5 18. h3 Ba6 19. Qc2 Bxe2 20. Qxe2 Ng5 21. Nb6 Rad8 22. Bxg5 Qxg5 23. Nd7 Rfe8 24. Qc4 Bd2 25. Qb5 c4 26. Kh1 Qh6 27. f3 c3 28. bxc3 Bxc3 29. Rab1 Bb4 30. Rd4 Kh8 31. Rbd1 Rc8 32. Qb7 Qg5 33. f4 Qe7 34. Qb5 h6 35. Nb6 Rb8 36. Qa6 Qb7 37. Qxb7 Rxb7 38. Nc4 Rc7 39. Nd6 Bxd6 40. exd6 Rd7 41. g4 Red8 42. Kg2 Kg8 43. gxf5 exf5 44. h4 Kf7 45. h5 Ke6 46. Re1+ Kf6 47. Red1 a4 48. Rxa4 Rxd6 49. Rxd6+ Rxd6 50. Ra3 Rd2+ 51. Kf3 Rd1 1/2-1/2

[Event "Bundesliga 1975/76 West"]
[Site "Germany West"]
[Date "1975.??.??"]
[Round "1.4"]
[White "Christoph, Manfred"]
[Black "Heikkila, Heikki"]
[Result "1-0"]
[ECO "A07"]
[PlyCount "99"]
[EventDate "1975.12.07"]
[EventType "team-tourn"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. Nf3 d5 2. g3 c6 3. Bg2 g6 4. 0-0 Bg7 5. d3 Nf6 6. Nbd2 0-0 7. h3 h6 8. e4 dxe4 9. dxe4 Be6 10. Qe2 Qc8 11. Kh2 c5 12. Ne5 Nfd7 13. Ng4 Nc6 14. c3 c4 15. f4 Bxg4 16. Qxg4 Nb6 17. e5 e6 18. Ne4 Ne7 19. Be3 Nbd5 20. Rae1 Qc7 21. Bc5 Nf5 22. Qf3 Rfc8 23. Bd6 Qd8 24. Rf2 h5 25. Ba3 b5 26. Nd6 Nxd6 27. Bxd6 Bh6 28. f5 Qg5 29. fxe6 fxe6 30. Qf7+ Kh8 31. Qxe6 h4 32. Qg4 Qxg4 33. hxg4 Ne3 34. Bh3 hxg3+ 35. Kxg3 Rd8 36. Rfe2 Nd5 37. Bg2 Nf4 38. Bxa8 Nxe2+ 39. Rxe2 Rxa8 40. e6 Re8 41. Rh2 Rxe6 42. Rxh6+ Kg7 43. Bf4 Re2 44. Rh2 Re1 45. Rd2 Kf6 46. Kf2 Ra1 47. a3 g5 48. Bg3 Rb1 49. Bb8 a6 50. Re2 1-0

[Event "Bundesliga 1975/76 West"]
[Site "Germany West"]
[Date "1975.??.??"]
[Round "6.5"]
[White "Heikkila, Heikki"]
[Black "Sandmann, Bernd"]
[Result "1-0"]
[ECO "A53"]
[PlyCount "45"]
[EventDate "1975.12.07"]
[EventType "team-tourn"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 d6 3. Nc3 Bf5 4. f3 e5 5. e4 exd4 6. Qxd4 Nc6 7. Qf2 Be6 8. h3 Be7 9. f4 0-0 10. Nf3 Re8 11. Be2 a6 12. 0-0 h6 13. b3 b6 14. Kh1 Qb8 15. Re1 Qa7 16. Bb2 Bd7 17. e5 dxe5 18. fxe5 Nh7 19. Bd3 Ng5 20. Qg3 Nb4 21. Nxg5 Bxg5 22. Be4 Rad8 23. Nd5 1-0

[Event "Hessen-ch M"]
[Site "Doernigheim"]
[Date "1974.04.09"]
[Round "7"]
[White "Mubedi, Mir Djahn"]
[Black "Heikkila, Heikki"]
[Result "1-0"]
[ECO "B87"]
[PlyCount "87"]
[EventDate "1974.04.05"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 b5 8. 0-0 Be7 9. a3 0-0 10. f4 Bb7 11. e5 dxe5 12. fxe5 Nfd7 13. Bf4 Nc5 14. Ba2 Qd7 15. Be3 Nc6 16. Nf3 Qc7 17. Bf4 b4 18. Nb1 a5 19. Nbd2 Rad8 20. Qe1 Nd4 21. Nxd4 Rxd4 22. axb4 axb4 23. Bc4 Qc6 24. Qe2 Ne4 25. Bd3 Nxd2 26. Bxd2 b3 27. Be3 Rd7 28. Bb5 Qe4 29. Bxd7 Bc5 30. cxb3 Bxe3+ 31. Kh1 Qxe5 32. b4 h5 33. b5 h4 34. Bc6 Bxc6 35. bxc6 f5 36. Qf3 Bb6 37. Rae1 Qb5 38. Rxe6 Rd8 39. Qe2 Qd5 40. Re8+ Kf7 41. Rxd8 Bxd8 42. Rd1 Qa5 43. Qc4+ Kg6 44. Qd5 1-0

[Event "Hessen-ch M"]
[Site "Doernigheim"]
[Date "1974.04.08"]
[Round "6"]
[White "Heikkila, Heikki"]
[Black "Maeder, Karl Heinz"]
[Result "0-1"]
[ECO "E74"]
[PlyCount "78"]
[EventDate "1974.04.05"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 0-0 6. Bg5 c5 7. d5 h6 8. Bf4 e6 9. dxe6 Bxe6 10. Qd2 Kh7 11. Nf3 Nc6 12. h4 Nd4 13. Nxd4 cxd4 14. Qxd4 Nd5 15. Qd2 Nxf4 16. Qxf4 Bxc3+ 17. bxc3 Qc7 18. Rd1 Bxc4 19. h5 g5 20. Qxd6 Qxd6 21. Rxd6 Bxa2 22. c4 Rac8 23. Rd4 Rfd8 24. Rxd8 Rxd8 25. Rh3 Rc8 26. Ra3 Bxc4 27. Rxa7 Bxe2 28. Kxe2 Rc2+ 29. Ke3 Rb2 30. Ra3 Kg7 31. g4 b5 32. f4 b4 33. Rd3 gxf4+ 34. Kxf4 b3 35. Kg3 Rb1 36. Kg2 Kf6 37. Rf3+ Kg5 38. Rxf7 Kxg4 39. e5 Rb2+ 0-1

[Event "Hessen-ch M"]
[Site "Doernigheim"]
[Date "1974.04.07"]
[Round "4"]
[White "Heikkila, Heikki"]
[Black "Haubt, Georg"]
[Result "1-0"]
[ECO "A97"]
[PlyCount "80"]
[EventDate "1974.04.05"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]

1. d4 e6 2. c4 f5 3. g3 Nf6 4. Bg2 Be7 5. Nf3 0-0 6. 0-0 d6 7. Nc3 Qe8 8. Re1 Qg6 9. Ng5 Nc6 10. d5 exd5 11. cxd5 Nb4 12. Nh3 Nh5 13. f4 Nf6 14. Nf2 a5 15. a3 Na6 16. b4 Bd7 17. Rb1 axb4 18. axb4 h5 19. Bf3 h4 20. Kg2 hxg3 21. hxg3 Nh5 22. Bxh5 Qxh5 23. g4 fxg4 24. e4 Bf6 25. Rh1 Qf7 26. Ne2 Rae8 27. f5 Be5 28. Qd3 Bxf5 29. exf5 Qxf5 30. Qxf5 Rxf5 31. Nxg4 c6 32. dxc6 bxc6 33. Bd2 Re6 34. Rbf1 Rxf1 35. Rxf1 Nc7 36. Rf5 Nd5 37. Kf3 Bb2 38. b5 Ne7 39. Rg5 cxb5 40. Nf4 Bf6 1-0

[Event "Hessen-ch M"]
[Site "Doernigheim"]
[Date "1974.04.07"]
[Round "5"]
[White "Stumpf, Walter"]
[Black "Heikkila, Heikki"]
[Result "1-0"]
[ECO "A44"]
[PlyCount "66"]
[EventDate "1974.04.05"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]

1. d4 c5 2. d5 e5 3. e4 d6 4. Bd3 Be7 5. Ne2 Nf6 6. Nd2 0-0 7. Ng3 b6 8. 0-0 Na6 9. c3 Nc7 10. Nc4 Re8 11. Ne3 g6 12. Bd2 Bf8 13. Qc1 Kh8 14. f3 Bg7 15. Nd1 Ng8 16. c4 Bd7 17. f4 Bf6 18. fxe5 dxe5 19. Ne3 Rf8 20. Qc2 Bg7 21. Rf2 Qh4 22. Raf1 Nh6 23. Be2 Ne8 24. Qc1 f6 25. Nc2 Nd6 26. Ne1 Bg4 27. Bxg4 Nxe4 28. Nxe4 f5 29. Bf3 f4 30. g3 Qd8 31. gxf4 Qh4 32. Ng2 Qh3 33. Ng5 Qd7 1-0

[Event "Hessen-ch M"]
[Site "Doernigheim"]
[Date "1974.04.06"]
[Round "3"]
[White "Metz, Werner"]
[Black "Heikkila, Heikki"]
[Result "0-1"]
[ECO "B82"]
[PlyCount "154"]
[EventDate "1974.04.05"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f4 e6 7. a4 Be7 8. Be2 0-0 9. 0-0 Nc6 10. Kh1 Nd7 11. Be3 Ndb8 12. Nb3 Na5 13. Nxa5 Qxa5 14. Qe1 Nc6 15. Qg3 Bf6 16. Rad1 Qb4 17. Bd3 Qxb2 18. Ne2 Qa3 19. c3 Bxc3 20. Nxc3 Qxc3 21. e5 f5 22. exd6 Bd7 23. Bb6 Nb4 24. Bd4 Qxd4 25. Bb5 Qf6 26. Bxd7 Nd5 27. Rfe1 Nc3 28. Rxe6 Ne4 29. Qe3 Qf7 30. Re7 Qh5 31. Re1 Rad8 32. Be6+ Kh8 33. d7 Qh4 34. Rf7 Rxf7 35. Bxf7 Rxd7 36. g3 Qf6 37. Bb3 Qc6 38. Kg1 Rd2 39. Rd1 Rxd1+ 40. Bxd1 Qc3 41. Qxc3 Nxc3 42. Bc2 Ne2+ 43. Kf2 Nd4 44. Bb1 g6 45. Ke3 Nc6 46. Bc2 Kg7 47. Bb3 Kf6 48. Kd3 Ke7 49. Bg8 h6 50. Kc4 b6 51. Bd5 Kd6 52. Bg2 Nd8 53. Bf3 Ne6 54. Bd1 Nc5 55. Kd4 Ne6+ 56. Kc4 Nc5 57. Kd4 Ne6+ 58. Kc4 h5 59. Bc2 h4 60. Bd1 h3 61. Be2 g5 62. fxg5 Nxg5 63. Kd4 Ne6+ 64. Ke3 a5 65. Bf1 Ke5 66. Bxh3 Nc5 67. Bg2 Nxa4 68. h4 b5 69. Bc6 Nc3 70. Kd3 b4 71. Kc4 Ne2 72. Ba4 Nxg3 73. Kb5 Kd4 74. Bd1 Kc3 75. h5 Nxh5 76. Bxh5 b3 77. Bg6 f4 0-1

[Event "Hessen-ch M"]
[Site "Doernigheim"]
[Date "1974.04.05"]
[Round "2"]
[White "Heikkila, Heikki"]
[Black "Werner, Dimo"]
[Result "0-1"]
[ECO "E75"]
[PlyCount "52"]
[EventDate "1974.04.05"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 0-0 6. Bg5 c5 7. d5 e6 8. Qd2 Qa5 9. Nf3 exd5 10. exd5 a6 11. 0-0 Bg4 12. Bxf6 Bxf6 13. Qf4 Bxc3 14. bxc3 Bxf3 15. Bxf3 Qc7 16. Rae1 Nd7 17. Re7 Rae8 18. Rfe1 Rxe7 19. Rxe7 Qb6 20. h4 Ne5 21. h5 Qb1+ 22. Kh2 Qd3 23. Qf6 Qxc3 24. Kg3 Qd4 25. Be4 Qxe4 26. h6 Qg4+ 0-1

[Event "Hessen-ch M"]
[Site "Doernigheim"]
[Date "1974.04.05"]
[Round "1"]
[White "Kopp, Peter"]
[Black "Heikkila, Heikki"]
[Result "1-0"]
[ECO "B22"]
[PlyCount "80"]
[EventDate "1974.04.05"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]

1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. d4 e6 5. Nf3 Be7 6. c4 Nc7 7. Nc3 cxd4 8. Qxd4 Nc6 9. Qg4 0-0 10. Bh6 Ne8 11. Bd3 f5 12. Qg3 Nxe5 13. Nxe5 Bh4 14. Qe3 gxh6 15. Qxh6 Bg5 16. Qh5 d6 17. Ng4 Ng7 18. Nh6+ Kh8 19. Nf7+ Rxf7 20. Qxf7 Bd7 21. c5 Bc6 22. 0-0 Rc8 23. cxd6 Qxd6 24. Rad1 Qb8 25. f4 Bxf4 26. Rxf4 Qxf4 27. Bb5 Qe3+ 28. Kh1 Bxg2+ 29. Kxg2 Rg8 30. Qf6 Qb6 31. b3 a6 32. Be2 Qc7 33. h4 Rc8 34. h5 h6 35. Rd3 f4 36. Ne4 Kg8 37. Qxh6 Qc6 38. Bf3 Rf8 39. Kf2 Qc7 40. Qg5 Rf5 1-0

[Event "FRG Cup 1970/71"]
[Site "Berlin"]
[Date "1971.04.10"]
[Round "4"]
[White "Schmidt, Bodo"]
[Black "Heikkila, Heikki"]
[Result "1-0"]
[ECO "A47"]
[PlyCount "83"]
[EventDate "1970.12.12"]
[EventType "k.o."]
[EventRounds "4"]
[EventCountry "GER"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 c5 3. c3 b6 4. e3 Bb7 5. Nbd2 e6 6. Bd3 Be7 7. 0-0 0-0 8. e4 d6 9. Re1 h6 10. Nf1 Nh7 11. Ng3 Re8 12. Be3 Nd7 13. Nd2 Bf8 14. a4 g6 15. f4 f5 16. a5 d5 17. exd5 exd5 18. axb6 axb6 19. Rxa8 Bxa8 20. Nf3 Nhf6 21. Bb5 Re6 22. Qa4 Bb7 23. Bf2 Rxe1+ 24. Bxe1 Bc8 25. Qa8 Be7 26. Nf1 Nf8 27. Bh4 N8h7 28. Ne5 Be6 29. Qxd8+ Bxd8 30. Nxg6 Bc7 31. Bxf6 Nxf6 32. g3 Kf7 33. Nh4 Ne4 34. Ne3 Kf6 35. Bc6 cxd4 36. cxd4 Nd6 37. Bxd5 b5 38. Bxe6 Kxe6 39. Kf1 Bb6 40. Nf3 Ne4 41. Ke2 Nf6 42. Kd3 1-0

[Event "WchT Students 17th final"]
[Site "Haifa"]
[Date "1970.08.18"]
[Round "10"]
[White "Heikkila, Heikki"]
[Black "Kristjansson, Bragi"]
[Result "1/2-1/2"]
[ECO "B24"]
[PlyCount "71"]
[EventDate "1970.08.04"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "ISR"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]
[WhiteTeam "Finland"]
[BlackTeam "Iceland"]
[WhiteTeamCountry "FIN"]
[BlackTeamCountry "ISL"]

1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 e6 6. f4 Nge7 7. Nf3 d5 8. e5 0-0 9. 0-0 a6 10. a4 f5 11. Ne2 b6 12. c3 Bd7 13. b3 Qc7 14. Ba3 Rfc8 15. c4 Rd8 16. Qc2 Bf8 17. d4 Na5 18. Nd2 Rac8 19. Rfc1 Bc6 20. dxc5 dxc4 21. Nxc4 Bxg2 22. Kxg2 Nd5 23. Nc3 Nxc4 24. Nxd5 Nxa3 25. Nf6+ Kh8 26. Rxa3 Bxc5 27. Kh3 Qb7 28. b4 Bxb4 29. Rd3 Be7 30. Rxd8+ Rxd8 31. Qc6 Qxc6 32. Rxc6 Bxf6 33. exf6 Rb8 34. a5 bxa5 35. Rxe6 Ra8 36. f7 1/2-1/2

[Event "WchT Students 17th final"]
[Site "Haifa"]
[Date "1970.08.17"]
[Round "9"]
[White "Ivarsson, Jonny"]
[Black "Heikkila, Heikki"]
[Result "1-0"]
[ECO "B09"]
[PlyCount "57"]
[EventDate "1970.08.04"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "ISR"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]
[WhiteTeam "Sweden"]
[BlackTeam "Finland"]
[WhiteTeamCountry "SWE"]
[BlackTeamCountry "FIN"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 0-0 6. Bd3 Nc6 7. e5 dxe5 8. fxe5 Ng4 9. Be4 f6 10. exf6 exf6 11. 0-0 Nh6 12. h3 Nf7 13. Bf4 Nd6 14. d5 Ne7 15. Bd3 Re8 16. Qd2 a6 17. a4 Bd7 18. Kh1 Qc8 19. Rae1 Bf5 20. Nd4 Bxd3 21. Qxd3 Qd7 22. Re6 Ndf5 23. Rfe1 Rad8 24. Nxf5 Nxf5 25. Rxe8+ Rxe8 26. Rxe8+ Qxe8 27. Bxc7 Qe1+ 28. Kh2 Ne3 29. d6 1-0

[Event "WchT Students 17th final"]
[Site "Haifa"]
[Date "1970.08.16"]
[Round "8"]
[White "Heikkila, Heikki"]
[Black "Kusky, Abraham"]
[Result "0-1"]
[ECO "C53"]
[PlyCount "134"]
[EventDate "1970.08.04"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "ISR"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]
[WhiteTeam "Finland"]
[BlackTeam "Israel"]
[WhiteTeamCountry "FIN"]
[BlackTeamCountry "ISR"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Qe7 5. d4 Bb6 6. 0-0 Nf6 7. d5 Nb8 8. Qc2 d6 9. Be3 Bg4 10. Nbd2 Nbd7 11. Bxb6 axb6 12. b4 0-0 13. Ne1 Bh5 14. f3 c6 15. dxc6 bxc6 16. Rf2 d5 17. Bd3 Bg6 18. Nf1 Ra3 19. Qb2 Rfa8 20. Nc2 R3a7 21. Nd2 Qd6 22. a3 b5 23. Re1 dxe4 24. Bxe4 Nxe4 25. Nxe4 Bxe4 26. fxe4 Nb6 27. Ne3 Rxa3 28. Nf5 Qe6 29. Qd2 f6 30. Qe3 Nc4 31. Qg3 R3a7 32. h4 Nd6 33. h5 Nxf5 34. Rxf5 Ra1 35. Rxa1 Rxa1+ 36. Kh2 Qd6 37. Qe3 h6 38. Rf3 Qd1 39. Qb6 Qh1+ 40. Kg3 Qe1+ 41. Kh2 Qh4+ 42. Rh3 Qxe4 43. Qd8+ Kh7 44. Qe8 Rd1 45. Rg3 Qh4+ 46. Rh3 Qg4 47. Rg3 Qd7 48. Qg6+ Kh8 49. Qe4 Rd5 50. Rf3 Qe8 51. Rh3 Kg8 52. Kg1 Qf7 53. Qf5 Rd8 54. Rg3 Qe7 55. Qg6 Kh8 56. Qf5 Qd7 57. Qe4 Re8 58. Rf3 Rf8 59. Rf5 Qd5 60. Qg4 Qd2 61. Qf3 Qd5 62. Qg4 Kg8 63. Qg3 Qe4 64. Rf1 Kh8 65. Kh2 Rd8 66. Ra1 Qd3 67. Qg6 Qxc3 0-1

[Event "WchT Students 17th final"]
[Site "Haifa"]
[Date "1970.08.13"]
[Round "7"]
[White "Watt, David Anthony"]
[Black "Heikkila, Heikki"]
[Result "1-0"]
[ECO "B09"]
[PlyCount "73"]
[EventDate "1970.08.04"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "ISR"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]
[WhiteTeam "Scotland"]
[BlackTeam "Finland"]
[WhiteTeamCountry "SCO"]
[BlackTeamCountry "FIN"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 0-0 6. Bd3 Nc6 7. e5 dxe5 8. fxe5 Ng4 9. Be4 f6 10. exf6 exf6 11. 0-0 Ne7 12. Ne2 c6 13. c4 Bf5 14. Ng3 Bxe4 15. Nxe4 Nf5 16. Re1 Re8 17. h3 Ngh6 18. b3 b6 19. Bf4 Nf7 20. Qd2 h5 21. Ng3 Nxg3 22. Bxg3 Qd7 23. Qd3 f5 24. Rad1 Nd6 25. Ne5 Qb7 26. Nxg6 Ne4 27. Be5 Qf7 28. Bxg7 Qxg6 29. Be5 Kh7 30. Qf3 Rad8 31. Bf4 Rd7 32. d5 cxd5 33. cxd5 Red8 34. d6 Nxd6 35. Bxd6 Rxd6 36. Rxd6 Rxd6 37. Re7+ 1-0

[Event "WchT Students 17th final"]
[Site "Haifa"]
[Date "1970.08.11"]
[Round "6"]
[White "Heikkila, Heikki"]
[Black "Juhnke, Juergen"]
[Result "1/2-1/2"]
[ECO "B25"]
[PlyCount "80"]
[EventDate "1970.08.04"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "ISR"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]
[WhiteTeam "Finland"]
[BlackTeam "German Fed Rep"]
[WhiteTeamCountry "FIN"]
[BlackTeamCountry "GER"]

1. e4 c5 2. Nc3 d6 3. d3 Nc6 4. g3 g6 5. Bg2 Bg7 6. f4 e6 7. Nf3 Nge7 8. 0-0 0-0 9. Be3 Nd4 10. Qd2 Rb8 11. Rab1 b5 12. Ne2 Nxe2+ 13. Qxe2 b4 14. Qd2 Bd7 15. d4 Qc7 16. c3 bxc3 17. bxc3 Bc6 18. dxc5 dxc5 19. e5 Rxb1 20. Rxb1 Rd8 21. Qc2 c4 22. Nd4 Bxg2 23. Qxg2 Nd5 24. Bd2 Rb8 25. Qf1 Bf8 26. Rxb8 Qxb8 27. Qxc4 Qb1+ 28. Kf2 Qe4 29. Qe2 Qh1 30. Qf1 Qxh2+ 31. Qg2 Qh5 32. Qf3 Qh6 33. Kg2 Bc5 34. Nb3 Qf8 35. c4 Nb6 36. Qc6 Nxc4 37. Nxc5 Nxd2 38. Nd7 Qb4 39. Nf6+ Kg7 40. Qc8 Qf8 1/2-1/2

[Event "WchT Students 17th final"]
[Site "Haifa"]
[Date "1970.08.10"]
[Round "4"]
[White "Heikkila, Heikki"]
[Black "Verber, Richard William"]
[Result "1/2-1/2"]
[ECO "B25"]
[PlyCount "200"]
[EventDate "1970.08.04"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "ISR"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]
[WhiteTeam "Finland"]
[BlackTeam "United States of America"]
[WhiteTeamCountry "FIN"]
[BlackTeamCountry "USA"]

1. e4 c5 2. Nc3 d6 3. g3 g6 4. Bg2 Bg7 5. d3 Nc6 6. f4 e6 7. Nf3 Nge7 8. 0-0 0-0 9. g4 f5 10. h3 Nd4 11. Ne2 e5 12. Nexd4 cxd4 13. Nh2 fxe4 14. dxe4 exf4 15. Rxf4 Rxf4 16. Bxf4 Qb6 17. Kh1 Be6 18. b3 Rc8 19. Rc1 h6 20. Bf1 Qc6 21. Bd3 g5 22. Bg3 Ng6 23. Nf3 Rf8 24. Qe2 Nf4 25. Bxf4 Rxf4 26. Rf1 Rf7 27. Kg2 Be5 28. Qe1 Qc5 29. Qf2 Qa3 30. Ra1 Kg7 31. Qg1 Qc5 32. Rf1 Rc7 33. Qf2 Rf7 34. Qg1 Rf8 35. Rd1 Rf4 36. Nxe5 dxe5 37. Rf1 Qc3 38. Rxf4 exf4 39. Qf1 Bd7 40. a4 Bc6 41. Qe2 Kf6 42. Qf2 Ke5 43. Qe2 b6 44. Kh2 Qc5 45. Kg2 a5 46. Kf2 Qd6 47. Qe1 Qb4 48. Qe2 Qc3 49. Kg2 Be8 50. Qd1 Bg6 51. Qe2 Qc6 52. Kf3 h5 53. Qe1 Qc3 54. Qe2 Qa1 55. Kg2 h4 56. Qd2 Bh7 57. Kh2 Qc3 58. Qe2 Bg8 59. Kg2 Be6 60. Kh2 Bc8 61. Kg2 Bb7 62. Kh2 Qb2 63. Qd2 Bc8 64. Qd1 Be6 65. Kg1 Kd6 66. Kh1 Qc3 67. Kg2 Bd7 68. Qe2 Bc6 69. Kh2 Ke7 70. Kg2 Ke6 71. Bc4+ Ke5 72. Bd3 Qb2 73. Qd2 Qa3 74. Qe1 Qc5 75. Kh2 Qf8 76. Qd2 Qf6 77. b4 Qd8 78. bxa5 bxa5 79. c3 Bxa4 80. cxd4+ Qxd4 81. Qxa5+ Kd6 82. Bf1 Qf2+ 83. Bg2 f3 84. Qd5+ Kc7 85. Qf7+ Bd7 86. Qxf3 Qxf3 87. Bxf3 Kd6 88. Bd1 Ke5 89. Bc2 Bc6 90. Bb3 Bxe4 91. Ba4 Kf4 92. Bd7 Bf3 93. Be6 Ke3 94. Kg1 Kf4 95. Kh2 Ke3 96. Kg1 Kf4 97. Kh2 Ke5 98. Bd7 Bd5 99. Ba4 Be6 100. Bd1 Kf4 1/2-1/2

[Event "WchT Students 17th final"]
[Site "Haifa"]
[Date "1970.08.06"]
[Round "3"]
[White "Mikenda, Werner"]
[Black "Heikkila, Heikki"]
[Result "1/2-1/2"]
[ECO "E91"]
[PlyCount "117"]
[EventDate "1970.08.04"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "ISR"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]
[WhiteTeam "Austria"]
[BlackTeam "Finland"]
[WhiteTeamCountry "AUT"]
[BlackTeamCountry "FIN"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 0-0 6. Bg5 c5 7. d5 Na6 8. Nf3 Nc7 9. 0-0 a6 10. a4 Rb8 11. Nd2 e5 12. dxe6 fxe6 13. f4 h6 14. Bh4 e5 15. f5 g5 16. Be1 Bd7 17. h4 Bc6 18. hxg5 hxg5 19. Bd3 Kf7 20. Nf3 Bh6 21. Bd2 Rg8 22. Nh2 Qf8 23. Ng4 Nce8 24. Nxf6 Nxf6 25. g4 Rh8 26. Kg2 Rh7 27. Rh1 Qe7 28. Qf3 Rbh8 29. Rh3 Ke8 30. Rah1 Qf7 31. Be2 Kd8 32. Qd3 Kc7 33. Bf3 Qg8 34. a5 Bf8 35. Rxh7+ Rxh7 36. Rxh7+ Nxh7 37. Nd1 Nf6 38. Nf2 Be7 39. b4 cxb4 40. Bxb4 Nd7 41. Nd1 Qf7 42. Ne3 Nc5 43. Qb1 Nd7 44. Bd1 Nf6 45. Nd5+ Bxd5 46. cxd5 Kb8 47. Be2 Kc8 48. Bd2 Nh7 49. Qc1+ Kb8 50. Qa3 Qf8 51. Be3 Qc8 52. Bb6 Qc2 53. Kf3 Nf6 54. Qb4 Kc8 55. Ke3 Nd7 56. Ba7 Qc1+ 57. Kd3 Bd8 58. Be3 Qc7 59. Bd1 1/2-1/2

[Event "WchT Students 06th"]
[Site "Budapest"]
[Date "1959.07.13"]
[Round "12"]
[White "Hannon, Brian"]
[Black "Heikkila, Heikki"]
[Result "1-0"]
[ECO "C18"]
[PlyCount "51"]
[EventDate "1959.06.30"]
[EventType "team-match"]
[EventRounds "13"]
[EventCountry "HUN"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]
[WhiteTeam "Ireland"]
[BlackTeam "Finland"]
[WhiteTeamCountry "IRL"]
[BlackTeamCountry "FIN"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Ba5 6. b4 cxd4 7. Qg4 Ne7 8. Nb5 Bc7 9. Qxg7 Rg8 10. Qxh7 Bxe5 11. Nf3 Rh8 12. Qd3 Bf6 13. Bf4 Kf8 14. Nc7 Nbc6 15. Nxa8 e5 16. Qd2 e4 17. Nc7 Bg4 18. Ng1 Nf5 19. Be2 Bxe2 20. Nxe2 d3 21. 0-0-0 dxe2 22. Qxe2 Nfd4 23. Qe3 Bg7 24. c3 Nf5 25. Qc5+ Kg8 26. Rxd5 1-0

[Event "WchT Students 06th"]
[Site "Budapest"]
[Date "1959.07.09"]
[Round "9"]
[White "Heikkila, Heikki"]
[Black "Savegren, Kurt"]
[Result "0-1"]
[ECO "C18"]
[PlyCount "80"]
[EventDate "1959.06.30"]
[EventType "team-match"]
[EventRounds "13"]
[EventCountry "HUN"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]
[WhiteTeam "Finland"]
[BlackTeam "Sweden"]
[WhiteTeamCountry "FIN"]
[BlackTeamCountry "SWE"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Ba5 6. Bb5+ Bd7 7. Bxd7+ Qxd7 8. Nge2 cxd4 9. Nxd4 Bxc3+ 10. bxc3 Ne7 11. Qe2 0-0 12. 0-0 Nbc6 13. a4 a6 14. a5 Rac8 15. Ba3 Nxd4 16. cxd4 Rc4 17. Bc5 Rc8 18. Rfb1 Nc6 19. Rd1 Qd8 20. Bb6 Qh4 21. g3 Qg5 22. Rab1 Qf5 23. Rd3 Nb4 24. Rd2 Nxc2 25. Rb2 Na3 26. Bc5 Nb5 27. f3 Rc7 28. Kg2 Nc3 29. Qe3 Na4 30. g4 Qg6 31. Qb3 Nxc5 32. dxc5 R4xc5 33. Qb6 R5c6 34. Qb4 h5 35. h3 Qg5 36. Kg3 Qxe5+ 37. Kg2 h4 38. f4 Qe3 39. Qb3 Qe4+ 40. Qf3 Qxf3+ 0-1

[Event "WchT Students 06th"]
[Site "Budapest"]
[Date "1959.07.05"]
[Round "6"]
[White "Navarovszky, Laszlo"]
[Black "Heikkila, Heikki"]
[Result "1-0"]
[ECO "E61"]
[PlyCount "41"]
[EventDate "1959.06.30"]
[EventType "team-match"]
[EventRounds "13"]
[EventCountry "HUN"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]
[WhiteTeam "Hungary"]
[BlackTeam "Finland"]
[WhiteTeamCountry "HUN"]
[BlackTeamCountry "FIN"]

1. c4 Nf6 2. Nc3 g6 3. d4 Bg7 4. Nf3 0-0 5. e3 d6 6. Be2 c6 7. 0-0 Nbd7 8. b4 Nb6 9. Bb2 Be6 10. Nd2 Rc8 11. a4 c5 12. bxc5 dxc5 13. d5 Bf5 14. Qb3 Qc7 15. h3 Rcd8 16. f4 Nc8 17. e4 Bd7 18. e5 Ne8 19. Nde4 Bh8 20. a5 Ng7 21. d6 1-0

[Event "WchT Students 06th"]
[Site "Budapest"]
[Date "1959.07.04"]
[Round "5"]
[White "Dimitrov Iliev, Ilia"]
[Black "Heikkila, Heikki"]
[Result "1-0"]
[ECO "D94"]
[PlyCount "93"]
[EventDate "1959.06.30"]
[EventType "team-match"]
[EventRounds "13"]
[EventCountry "HUN"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]
[WhiteTeam "Bulgaria"]
[BlackTeam "Finland"]
[WhiteTeamCountry "BUL"]
[BlackTeamCountry "FIN"]

1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 g6 5. Nf3 Bg7 6. Be2 0-0 7. 0-0 dxc4 8. Bxc4 Nbd7 9. a3 b5 10. Ba2 Nb6 11. Ne5 Bb7 12. Bd2 Rc8 13. b4 Rc7 14. Rc1 Ne8 15. f4 Nd6 16. a4 Kh8 17. Qc2 a6 18. a5 Na8 19. Nd1 Qe8 20. Nf2 f6 21. Ned3 e6 22. Nc5 Bc8 23. Bc3 Re7 24. e4 Nc7 25. Bb2 Nb7 26. Nxb7 Bxb7 27. Qc5 Ba8 28. Rc2 Rd7 29. Nd3 Qe7 30. Qc3 Rfd8 31. Qe1 f5 32. e5 Qe8 33. Nc5 Re7 34. Qh4 Qf7 35. Rfc1 Bf8 36. Nd3 Bg7 37. Re2 Red7 38. Nc5 Re7 39. g4 fxg4 40. Qxg4 Qf5 41. Qxf5 exf5 42. Kf2 Bf8 43. Kf3 Kg7 44. Rg1 Kh8 45. h4 Ne8 46. h5 gxh5 47. Rg8# 1-0

[Event "WchT Students 06th"]
[Site "Budapest"]
[Date "1959.07.02"]
[Round "3"]
[White "Staw, Philippe"]
[Black "Heikkila, Heikki"]
[Result "1-0"]
[ECO "D94"]
[PlyCount "71"]
[EventDate "1959.06.30"]
[EventType "team-match"]
[EventRounds "13"]
[EventCountry "HUN"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]
[WhiteTeam "France"]
[BlackTeam "Finland"]
[WhiteTeamCountry "FRA"]
[BlackTeamCountry "FIN"]

1. d4 Nf6 2. c4 c6 3. Nc3 d5 4. e3 g6 5. Nf3 Bg7 6. Be2 dxc4 7. Bxc4 0-0 8. 0-0 Nbd7 9. a4 Qc7 10. a5 e5 11. Qc2 Re8 12. Be2 h6 13. Rd1 a6 14. Nd2 exd4 15. exd4 Nf8 16. Qa4 Bf5 17. Bf3 Ne6 18. Nf1 Rad8 19. g3 c5 20. Be3 cxd4 21. Bxd4 Nxd4 22. Rxd4 Rxd4 23. Qxd4 Qe7 24. Qb6 Be4 25. Bxe4 Nxe4 26. Nxe4 Qxe4 27. Rd1 Re6 28. Qd8+ Kh7 29. Qd2 Qf3 30. Ne3 h5 31. b4 Be5 32. Qd5 Bf6 33. Qxf3 Bc3 34. Qxb7 Bxb4 35. Qxb4 Kg7 36. Qb7 1-0

[Event "WchT Students 06th"]
[Site "Budapest"]
[Date "1959.06.30"]
[Round "1"]
[White "Jaros, Mojmir"]
[Black "Heikkila, Heikki"]
[Result "1-0"]
[ECO "B60"]
[PlyCount "73"]
[EventDate "1959.06.30"]
[EventType "team-match"]
[EventRounds "13"]
[EventCountry "HUN"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]
[WhiteTeam "Czechoslovakia"]
[BlackTeam "Finland"]
[WhiteTeamCountry "CSR"]
[BlackTeamCountry "FIN"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bg5 h6 7. Bh4 g5 8. Bg3 Bg7 9. Nxc6 bxc6 10. e5 Nd7 11. exd6 0-0 12. Be2 exd6 13. Bxd6 Re8 14. 0-0 Nb6 15. Bd3 f5 16. Ba3 Be6 17. Re1 Qc7 18. Qh5 Bf7 19. Qf3 f4 20. Re4 Nd5 21. Rae1 Rxe4 22. Qxe4 Nf6 23. Qf5 Re8 24. Rxe8+ Bxe8 25. Ne4 Qf7 26. b3 Kh8 27. h3 Bd7 28. Qa5 f3 29. g4 Qe8 30. Nxf6 Bxf6 31. Qb4 h5 32. gxh5 c5 33. Qe4 Qxh5 34. Qa8+ Be8 35. Bb5 Qxh3 36. Qxe8+ Kg7 37. Qd7+ 1-0

[Event "World U20-ch02 Final B"]
[Site "Copenhagen"]
[Date "1953.07.21"]
[Round "7"]
[White "Heikkila, Heikki"]
[Black "Scafarelli, Francesco"]
[Result "1-0"]
[ECO "D42"]
[PlyCount "53"]
[EventDate "1953.07.14"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "DEN"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. Nf3 c5 5. cxd5 Nxd5 6. e3 Nc6 7. Bd3 cxd4 8. exd4 Be7 9. 0-0 0-0 10. Qe2 Ndb4 11. Bc4 Nxd4 12. Nxd4 Qxd4 13. Rd1 Qh4 14. Be3 Nc6 15. Bb5 a6 16. Bxc6 bxc6 17. Qf3 Rb8 18. Rd4 Qf6 19. Rf4 Qe5 20. Qg3 Rb4 21. Rd1 c5 22. h4 Rd8 23. Rxd8+ Bxd8 24. Rd4 Qf6 25. Ne4 Qxh4 26. Bh6 g6 27. Qe5 1-0

[Event "World U20-ch02 Final B"]
[Site "Copenhagen"]
[Date "1953.07.19"]
[Round "6"]
[White "Reichel, Ewald"]
[Black "Heikkila, Heikki"]
[Result "1/2-1/2"]
[ECO "D35"]
[PlyCount "26"]
[EventDate "1953.07.14"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "DEN"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 0-0 6. Nf3 Nbd7 7. cxd5 exd5 8. Bd3 Re8 9. Rc1 c6 10. 0-0 Nf8 11. Ne5 N6d7 12. Bxe7 Qxe7 13. Nxd7 Bxd7 1/2-1/2

[Event "World U20-ch02 Final B"]
[Site "Copenhagen"]
[Date "1953.07.18"]
[Round "5"]
[White "Siemms, Ross E"]
[Black "Heikkila, Heikki"]
[Result "0-1"]
[ECO "B83"]
[PlyCount "84"]
[EventDate "1953.07.14"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "DEN"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 e5 7. Nb3 Be7 8. 0-0 0-0 9. f4 a5 10. a4 Nb4 11. Bf3 Be6 12. Be3 exf4 13. Bxf4 Nxc2 14. Qxc2 Qb6+ 15. Kh1 Bxb3 16. Qd2 Qb4 17. g4 Rac8 18. Qg2 Nd7 19. Bd2 Qb6 20. Nd5 Bxd5 21. exd5 Ne5 22. Be4 Rc4 23. Bc3 g6 24. Qe2 Qc7 25. Rg1 f6 26. h4 Rf7 27. Rg3 Rg7 28. Rc1 Qc8 29. b3 Rc5 30. Rc2 Bd8 31. Bd4 Rxc2 32. Bxc2 Re7 33. Qg2 Qd7 34. h5 Rg7 35. h6 Rf7 36. Bf5 gxf5 37. gxf5+ Kf8 38. Rg8+ Ke7 39. Bxe5 dxe5 40. Rg7 Kf8 41. Rg8+ Ke7 42. Rg7 Qxf5 0-1

[Event "World U20-ch02 Final B"]
[Site "Copenhagen"]
[Date "1953.07.17"]
[Round "4"]
[White "Heikkila, Heikki"]
[Black "Boey, Josef Martin"]
[Result "1-0"]
[ECO "A42"]
[PlyCount "51"]
[EventDate "1953.07.14"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "DEN"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. g3 0-0 6. Bg2 e5 7. Nge2 exd4 8. Nxd4 Nc6 9. Nxc6 bxc6 10. 0-0 Nd7 11. Qc2 Qf6 12. Be3 Ne5 13. Ne2 Be6 14. f4 Nxc4 15. Bd4 Qe7 16. Bxg7 Kxg7 17. f5 Qf6 18. fxe6 Ne3 19. Rxf6 Nxc2 20. Raf1 fxe6 21. Rxf8 Rxf8 22. Rc1 Ne3 23. Rxc6 Rf7 24. Bh3 g5 25. Nd4 g4 26. Bg2 1-0

[Event "World U20-ch02 Final B"]
[Site "Copenhagen"]
[Date "1953.07.16"]
[Round "3"]
[White "Heikkila, Heikki"]
[Black "Barda, Yngvar"]
[Result "1-0"]
[ECO "D93"]
[PlyCount "111"]
[EventDate "1953.07.14"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "DEN"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 c6 6. Bf4 0-0 7. e3 dxc4 8. Bxc4 Qb6 9. Qc2 Bf5 10. Qe2 Ne4 11. 0-0 Nd6 12. Ne5 Nxc4 13. Nxc4 Qd8 14. Rfd1 b5 15. Ne5 f6 16. Nd3 Na6 17. a4 b4 18. e4 Be6 19. d5 Bf7 20. Na2 Qa5 21. dxc6 Bb3 22. Rdc1 Bxa4 23. b3 Bb5 24. Nc3 Qxa1 25. Rxa1 bxc3 26. Qc2 g5 27. Be3 f5 28. Nc5 Nb4 29. Qc1 f4 30. Ne6 fxe3 31. Qxe3 Bf6 32. Qc5 Nc2 33. Rc1 Bxc6 34. Rxc2 Bxe4 35. Rc1 Rfc8 36. Qe3 Bg6 37. Nxg5 c2 38. Qe6+ Kg7 39. Qe3 Rc3 40. Ne6+ Kg8 41. Qd2 Rxb3 42. Nf4 Bf7 43. Qxc2 Rab8 44. Qf5 a5 45. Nd5 Bxd5 46. Qxd5+ Kg7 47. Qxa5 Rb1 48. Rf1 Bd4 49. Qg5+ Kh8 50. Qxe7 R1b2 51. g3 R2b7 52. Qd6 Ba7 53. Ra1 Ra8 54. Kg2 Rf7 55. Qe5+ Kg8 56. Qd5 1-0

[Event "World U20-ch02 Final B"]
[Site "Copenhagen"]
[Date "1953.07.15"]
[Round "2"]
[White "Persitz, Raaphi"]
[Black "Heikkila, Heikki"]
[Result "1-0"]
[ECO "B25"]
[PlyCount "48"]
[EventDate "1953.07.14"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "DEN"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. Nge2 Nf6 7. 0-0 0-0 8. h3 Ne8 9. Be3 Bd7 10. Qd2 Rb8 11. f4 b5 12. f5 b4 13. Nd5 e6 14. fxe6 Bxe6 15. Bh6 f6 16. Rf2 Qc8 17. Kh2 Rb7 18. Raf1 Rbf7 19. c3 Qa6 20. Bxg7 Kxg7 21. Nef4 Bd7 22. cxb4 cxb4 23. Nxb4 Nxb4 24. Qxb4 Bb5 1-0

[Event "World U20-ch02 Preliminaries B"]
[Site "Copenhagen"]
[Date "1953.07.12"]
[Round "9"]
[White "Heikkila, Heikki"]
[Black "Roessel, Frits"]
[Result "0-1"]
[ECO "E72"]
[PlyCount "38"]
[EventDate "1953.07.03"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "DEN"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. g3 0-0 6. Bg2 c5 7. d5 e5 8. Nge2 Ne8 9. 0-0 f5 10. f4 Nd7 11. Kh1 a6 12. a4 Ndf6 13. Be3 Ng4 14. Bg1 exf4 15. gxf4 fxe4 16. Bxe4 Nef6 17. Bg2 Nh5 18. Qc1 Qe7 19. h3 Ne3 0-1

[Event "World U20-ch02 Preliminaries B"]
[Site "Copenhagen"]
[Date "1953.07.10"]
[Round "8"]
[White "Darga, Klaus"]
[Black "Heikkila, Heikki"]
[Result "1-0"]
[ECO "B11"]
[PlyCount "27"]
[EventDate "1953.07.03"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "DEN"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c6 2. Nf3 d5 3. Nc3 dxe4 4. Nxe4 Bg4 5. h3 Bh5 6. Ng3 Bg6 7. h4 h6 8. Ne5 Bh7 9. Qh5 g6 10. Qf3 Nf6 11. Qb3 Qd5 12. Qxb7 Qxe5+ 13. Be2 Nd5 14. Qc8# 1-0

[Event "World U20-ch02 Preliminaries B"]
[Site "Copenhagen"]
[Date "1953.07.09"]
[Round "7"]
[White "Heikkila, Heikki"]
[Black "Scafarelli, Francesco"]
[Result "1/2-1/2"]
[ECO "D53"]
[PlyCount "24"]
[EventDate "1953.07.03"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "DEN"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 h6 6. Bh4 Ne4 7. Bxe7 Qxe7 8. cxd5 Nxc3 9. bxc3 exd5 10. Bd3 0-0 11. Ne2 Nd7 12. 0-0 Nf6 1/2-1/2

[Event "World U20-ch02 Preliminaries B"]
[Site "Copenhagen"]
[Date "1953.07.08"]
[Round "6"]
[White "Herbin, Jacques"]
[Black "Heikkila, Heikki"]
[Result "1/2-1/2"]
[ECO "E19"]
[PlyCount "38"]
[EventDate "1953.07.03"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "DEN"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 b6 3. g3 Bb7 4. Bg2 e6 5. c4 Be7 6. 0-0 0-0 7. Nc3 Ne4 8. Qc2 Nxc3 9. Qxc3 f5 10. Ne5 Bxg2 11. Kxg2 Qc8 12. Qf3 c6 13. Bd2 Bf6 14. Bb4 Re8 15. Bd6 Na6 16. h4 Be7 17. Bxe7 Rxe7 18. a3 c5 19. d5 d6 1/2-1/2

[Event "World U20-ch02 Preliminaries B"]
[Site "Copenhagen"]
[Date "1953.07.07"]
[Round "5"]
[White "Heikkila, Heikki"]
[Black "Sherwin, James T"]
[Result "0-1"]
[ECO "D99"]
[PlyCount "84"]
[EventDate "1953.07.03"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "DEN"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 0-0 7. e4 Bg4 8. Be3 Nfd7 9. Qb3 c5 10. d5 Na6 11. Be2 Nc7 12. 0-0 b5 13. Ne1 Bxe2 14. Nxe2 c4 15. Qc2 f5 16. a4 a6 17. exf5 Rxf5 18. Nf4 Nxd5 19. Ne6 Nxe3 20. fxe3 Rxf1+ 21. Kxf1 Qb6 22. Qe4 Re8 23. Nxg7 Kxg7 24. Nf3 Nf6 25. Qe5 Qd6 26. axb5 Qxe5 27. Nxe5 axb5 28. Ra5 Rb8 29. Ra7 Kf8 30. Nd7+ Nxd7 31. Rxd7 b4 32. Ke2 Ra8 33. Kd1 Ra1+ 34. Kd2 Ra2 35. Kc1 Ra1+ 36. Kd2 Rg1 37. Rd4 Rxg2+ 38. Kc1 Rg1+ 39. Kd2 Rg2+ 40. Kc1 c3 41. bxc3 bxc3 42. h4 Rh2 0-1

[Event "World U20-ch02 Preliminaries B"]
[Site "Copenhagen"]
[Date "1953.07.06"]
[Round "4"]
[White "Larsen, Bent"]
[Black "Heikkila, Heikki"]
[Result "1-0"]
[ECO "B31"]
[PlyCount "80"]
[EventDate "1953.07.03"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "DEN"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. 0-0 Bg7 5. c3 Qb6 6. Bc4 e6 7. Na3 a6 8. Bb3 Qa7 9. Nc4 b5 10. Nd6+ Ke7 11. Nxc8+ Rxc8 12. d3 d6 13. Re1 Nf6 14. d4 Rhd8 15. d5 c4 16. dxc6 cxb3 17. Qxb3 Ng4 18. Bg5+ Bf6 19. Bxf6+ Kxf6 20. Re2 Qc5 21. Qd1 Qxc6 22. Qd2 Kg7 23. Qf4 Qc4 24. Rd2 Nf6 25. Rxd6 Rxd6 26. Qxd6 Nxe4 27. Qxa6 Rd8 28. Qb6 Qxa2 29. Re1 Qd5 30. h3 Nd2 31. Ne5 Ne4 32. Ng4 h5 33. Ne3 Qd2 34. Rf1 Rd6 35. Qxb5 Rd3 36. Qe5+ Nf6 37. g4 hxg4 38. hxg4 Qxb2 39. g5 Qxc3 40. gxf6+ Kh7 1-0

[Event "World U20-ch02 Preliminaries B"]
[Site "Copenhagen"]
[Date "1953.07.05"]
[Round "3"]
[White "Farre Mallofre, Miguel"]
[Black "Heikkila, Heikki"]
[Result "1-0"]
[ECO "B65"]
[PlyCount "39"]
[EventDate "1953.07.03"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "DEN"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bg5 e6 7. Qd2 Be7 8. 0-0-0 0-0 9. f4 Nxd4 10. Qxd4 Qa5 11. Be2 Rd8 12. e5 dxe5 13. Qxe5 Rxd1+ 14. Rxd1 Qb6 15. Na4 Qc6 16. Bb5 Qxg2 17. Qc7 h6 18. Qxe7 hxg5 19. Qd8+ Kh7 20. Bd3+ 1-0

[Event "World U20-ch02 Preliminaries B"]
[Site "Copenhagen"]
[Date "1953.07.04"]
[Round "2"]
[White "Heikkila, Heikki"]
[Black "Petri, Bernd"]
[Result "1/2-1/2"]
[ECO "A52"]
[PlyCount "122"]
[EventDate "1953.07.03"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "DEN"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e5 3. dxe5 Ng4 4. e4 Nxe5 5. f4 Nec6 6. Nc3 Bc5 7. Nf3 Qe7 8. Bd3 d6 9. Bd2 Bg4 10. Nd5 Qd7 11. h3 Bxf3 12. Qxf3 Na6 13. a3 Nd4 14. Qd1 c6 15. Ne3 0-0 16. b4 Bb6 17. 0-0 f5 18. exf5 Nxf5 19. c5 Nxe3 20. Bxe3 Qe7 21. Re1 dxc5 22. Kh1 Qh4 23. Bc4+ Kh8 24. Qd7 Nc7 25. bxc5 Rad8 26. Qg4 Qxg4 27. hxg4 Ba5 28. Reb1 Rfe8 29. Rb3 b6 30. cxb6 axb6 31. Bxb6 Bxb6 32. Rxb6 Rd6 33. Kh2 Nd5 34. Bxd5 Rh6+ 35. Kg3 cxd5 36. Rxh6 gxh6 37. Rd1 Re3+ 38. Kf2 Rxa3 39. Rxd5 Kg7 40. g5 hxg5 41. Rxg5+ Kf6 42. Rg8 Ra7 43. g4 Kf7 44. Rh8 Ra2+ 45. Kf3 Ra3+ 46. Kg2 Kg7 47. Re8 Ra2+ 48. Kf3 Ra1 49. Re5 Ra7 50. Ke4 Rb7 51. Re6 h6 52. f5 Rb4+ 53. Kf3 Rb3+ 54. Kf4 Rb4+ 55. Re4 Rb6 56. Ra4 Kf6 57. Rc4 Ra6 58. Ke4 h5 59. gxh5 Kg5 60. h6 Kxh6 61. Ke5 Kg5 1/2-1/2

[Event "World U20-ch02 Preliminaries B"]
[Site "Copenhagen"]
[Date "1953.07.03"]
[Round "1"]
[White "Penrose, Jonathan"]
[Black "Heikkila, Heikki"]
[Result "1-0"]
[ECO "B59"]
[PlyCount "111"]
[EventDate "1953.07.03"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "DEN"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 e5 7. Nb3 Be7 8. 0-0 0-0 9. f4 a5 10. a4 Nb4 11. Kh1 Be6 12. Be3 Rc8 13. Bf3 Nd7 14. f5 Bc4 15. Rf2 h6 16. Rd2 Qc7 17. Nc1 Rfd8 18. N1e2 Ba6 19. Ng3 Nb6 20. b3 Nd7 21. Nd5 Nxd5 22. exd5 Qc3 23. Qg1 Nc5 24. Rad1 Bh4 25. Ne4 Nxe4 26. Bxe4 Bg5 27. Bxg5 hxg5 28. Bf3 Qb4 29. Qe3 Qf4 30. Qxf4 gxf4 31. c4 b6 32. Rg1 Re8 33. Be4 f6 34. g3 fxg3 35. Rxg3 Re7 36. Rdg2 Rcc7 37. Rg4 Bc8 38. R2g3 Kf8 39. Rh4 Kg8 40. Rhg4 Kf8 41. h4 Ke8 42. h5 Rf7 43. Kg2 Rce7 44. Kf3 Kd8 45. Bd3 Kd7 46. Ke4 Kd8 47. Be2 Ke8 48. Rg6 Kd7 49. Rg1 Kc7 50. R6g3 Rd7 51. b4 Ba6 52. Rb1 Rd8 53. Rgb3 Rff8 54. bxa5 bxa5 55. c5 Ra8 56. Bxa6 1-0

