[Event "Sundsvall op"]
[Site "Sundsvall"]
[Date "2020.01.06"]
[Round "7"]
[White "Heijdenberg, Ronny"]
[Black "Stromberg, Victoria"]
[Result "1-0"]
[ECO "C54"]
[WhiteElo "1818"]
[BlackElo "1237"]
[PlyCount "53"]
[EventDate "2020.01.04"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "SWE"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. cxd4 Bb4+ 7. Bd2 Nxe4 8. Bxb4 Nxb4 9. Bxf7+ Kxf7 10. Qb3+ d5 11. Qxb4 Re8 12. 0-0 Kg8 13. Nc3 c6 14. h3 Ng5 15. Nxg5 Qxg5 16. Kh1 Qh4 17. Qd6 Rf8 18. Rae1 Bxh3 19. gxh3 Qxh3+ 20. Qh2 Qf3+ 21. Qg2 Qh5+ 22. Kg1 Rf5 23. Re3 Rg5 24. Rg3 Rxg3 25. fxg3 Qg5 26. Qf2 Re8 27. Qf7+ 1-0

[Event "Sundsvall op"]
[Site "Sundsvall"]
[Date "2020.01.06"]
[Round "8"]
[White "Ostman, Lennart"]
[Black "Heijdenberg, Ronny"]
[Result "0-1"]
[ECO "A40"]
[WhiteElo "1619"]
[BlackElo "1818"]
[PlyCount "68"]
[EventDate "2020.01.04"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "SWE"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. d4 e6 2. c3 b6 3. Nf3 Bb7 4. Nbd2 f5 5. Nc4 d6 6. Bf4 Nf6 7. e3 Be7 8. Bd3 Qd7 9. Qe2 Nc6 10. Rd1 b5 11. Na3 b4 12. Nc2 bxc3 13. bxc3 Nd5 14. Qd2 Nf6 15. Rb1 Nd8 16. 0-0 Ne4 17. Qe1 h6 18. h3 g5 19. Bh2 g4 20. hxg4 fxg4 21. Nd2 Nxc3 22. Bg6+ Kf8 23. Rb3 Qc6 24. f3 gxf3 25. Rxf3+ Kg7 26. Bd3 Nd5 27. Qg3+ Bg5 28. Ne4 Nf7 29. Rxf7+ Kxf7 30. Nxg5+ hxg5 31. Rb1 Rag8 32. Rf1+ Ke7 33. Ne1 Qe8 34. Bb5 Qxb5 0-1

[Event "Sundsvall op"]
[Site "Sundsvall"]
[Date "2020.01.05"]
[Round "6"]
[White "Heijdenberg, Ronny"]
[Black "Mollerstrom, Fredrik"]
[Result "0-1"]
[ECO "C05"]
[WhiteElo "1818"]
[BlackElo "1753"]
[PlyCount "62"]
[EventDate "2020.01.04"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "SWE"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 Nf6 4. e5 Nfd7 5. f4 c5 6. c3 Nc6 7. Ndf3 Be7 8. Bd3 f5 9. exf6 Nxf6 10. dxc5 Bxc5 11. Ne5 Qb6 12. Nh3 0-0 13. Qc2 Qc7 14. Nxc6 bxc6 15. Bd2 e5 16. Bf5 e4 17. Bxc8 Raxc8 18. 0-0-0 e3 19. Be1 Ne4 20. g3 a5 21. c4 Qb7 22. Bc3 Bb4 23. Bxb4 axb4 24. Ng5 Nxg5 25. fxg5 Rf2 26. Qb3 Qe7 27. cxd5 cxd5+ 28. Kb1 Qe4+ 29. Ka1 e2 30. Rxd5 Qxh1+ 31. Rd1+ Kh8 0-1

[Event "Sundsvall op"]
[Site "Sundsvall"]
[Date "2020.01.05"]
[Round "5"]
[White "Morelius, Emil"]
[Black "Heijdenberg, Ronny"]
[Result "1-0"]
[ECO "A84"]
[WhiteElo "2127"]
[BlackElo "1818"]
[PlyCount "138"]
[EventDate "2020.01.04"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "SWE"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. d4 e6 2. c4 b6 3. g3 Bb7 4. Nf3 f5 5. Bg2 Be7 6. Nc3 Nf6 7. 0-0 0-0 8. d5 exd5 9. cxd5 Na6 10. Nd4 Nh5 11. d6 Bxg2 12. dxe7 Qxe7 13. Kxg2 f4 14. e3 c5 15. Nf3 fxg3 16. Qd5+ Qf7 17. Qxf7+ Rxf7 18. fxg3 Raf8 19. Bd2 Nf6 20. e4 Nb4 21. e5 Ng4 22. Rae1 Nd3 23. Rb1 Ngxe5 24. Nxe5 Nxe5 25. Rxf7 Rxf7 26. Re1 Nd3 27. Re8+ Rf8 28. Rxf8+ Kxf8 29. b3 Kf7 30. Kf3 Ke6 31. Nb5 Ne5+ 32. Kf4 g5+ 33. Ke3 Nc6 34. Ke2 g4 35. Bc3 d5 36. Nc7+ Kd6 37. Nb5+ Ke6 38. Bd2 d4 39. Nc7+ Kf5 40. Bf4 Ke4 41. Ne8 Kf5 42. Nd6+ Ke6 43. Ne4 h5 44. a3 Ne7 45. Bb8 Nc6 46. Bc7 Ne7 47. Kd3 Nc6 48. Bf4 Kf5 49. Nd6+ Ke6 50. Ne4 Kf5 51. Bc7 Ke6 52. Nd2 Ne7 53. a4 Nd5 54. Bb8 a6 55. Ba7 Kd6 56. Bb8+ Ke6 57. Ba7 Kd6 58. Bb8+ Ke6 59. Ne4 Ne3 60. Ba7 Nd5 61. a5 Nb4+ 62. Kd2 Ke5 63. Nf2 b5 64. Bxc5 Nc6 65. Bb6 Kd5 66. Nd3 Ke4 67. Ke2 Nb8 68. Nc5+ Kd5 69. Kd3 Ke5 1-0

[Event "Sundsvall op"]
[Site "Sundsvall"]
[Date "2020.01.04"]
[Round "1"]
[White "Landgren, Andreas"]
[Black "Heijdenberg, Ronny"]
[Result "1-0"]
[ECO "A40"]
[WhiteElo "2239"]
[BlackElo "1818"]
[PlyCount "107"]
[EventDate "2020.01.04"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "SWE"]
[SourceTitle "CBM 194 Extra"]
[Source "ChessBase"]
[SourceDate "2020.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.03.31"]
[SourceQuality "1"]

1. d4 e6 2. c4 b6 3. e4 Bb7 4. Bd3 Nc6 5. Ne2 Nb4 6. Nbc3 Nxd3+ 7. Qxd3 Bb4 8. 0-0 Qh4 9. a3 Bxc3 10. Nxc3 Nf6 11. d5 Ng4 12. h3 Ne5 13. Qd4 d6 14. f4 c5 15. dxc6 Nxc6 16. Qxg7 0-0-0 17. Qxf7 Nd4 18. Qg7 Nc2 19. Nb5 Kb8 20. Nxd6 Bc6 21. Qe5 Ka8 22. Nf7 Rhg8 23. Nxd8 Qxh3 24. Rf2 Ne1 25. Qg5 Rxg5 26. fxg5 Nxg2 27. Nxc6 Nh4 28. Nd4 Qg3+ 29. Kf1 Qd3+ 30. Re2 Qxd4 31. Be3 Qxe4 32. Rc1 Qh1+ 33. Kf2 Qf3+ 34. Ke1 Ng2+ 35. Kd2 Nxe3 36. Rxe3 Qg2+ 37. Kc3 Qxg5 38. Rce1 Qf6+ 39. Kb3 h5 40. Rxe6 Qf3+ 41. R1e3 Qd1+ 42. Ka2 Qd4 43. R6e4 Qd6 44. Re6 Qc5 45. Kb3 Kb7 46. R6e5 Qc6 47. Rxh5 Ka6 48. Rhe5 Qg2 49. Re7 Qg4 50. Rf7 Qg1 51. Ree7 Qd1+ 52. Ka2 b5 53. Re6+ Ka5 54. Rxa7# 1-0

[Event "Sundsvall op"]
[Site "Sundsvall"]
[Date "2019.01.04"]
[Round "1"]
[White "Heijdenberg, Ronny"]
[Black "Hjorth, Gunnar"]
[Result "0-1"]
[ECO "B08"]
[WhiteElo "1768"]
[BlackElo "2239"]
[PlyCount "56"]
[EventDate "2019.01.04"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "SWE"]
[SourceTitle "CBM 188 Extra"]
[Source "ChessBase"]
[SourceDate "2019.02.26"]
[SourceVersion "1"]
[SourceVersionDate "2019.02.26"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Nf3 Bg7 5. h3 0-0 6. Be3 b6 7. Qd2 Bb7 8. Bd3 c5 9. dxc5 bxc5 10. 0-0-0 Qa5 11. Kb1 Nc6 12. a3 Rfb8 13. Nd5 Qd8 14. Bh6 Bh8 15. Ng5 Ne5 16. Be2 Bxd5 17. exd5 Qb6 18. c3 Qb3 19. Ka1 Nc4 20. Bxc4 Qxc4 21. Rhe1 Rb7 22. Qd3 Qb3 23. Rd2 Rab8 24. f4 c4 25. Qb1 Nxd5 26. Rxd5 Bxc3 27. bxc3 Qxa3+ 28. Qa2 Qxc3+ 0-1

