[Event "Blonduos Icelandic op"]
[Site "Blonduos"]
[Date "2025.06.21"]
[Round "9"]
[White "Arnarson, Erlingur"]
[Black "Bjornsson, Bjorn"]
[Result "0-1"]
[ECO "C21"]
[WhiteElo "1464"]
[PlyCount "52"]
[EventDate "2025.06.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ISL"]
[SourceTitle "CB26_2025"]
[SourceDate "2025.06.25"]
[SourceVersion "1"]
[SourceVersionDate "2025.06.25"]
[SourceQuality "1"]

1. e4 e5 2. d4 exd4 3. c3 dxc3 4. Bc4 Qf6 5. Nxc3 Bc5 6. Nf3 c6 7. Bg5 Qd6 8. Qb3 Nh6 9. Bxh6 Qxh6 10. Bxf7+ Kf8 11. g4 Qf6 12. Bh5 Qxf3 13. 0-0 g6 14. Rae1 gxh5 15. Re3 Qf7 16. Qc2 Rg8 17. Qe2 Rxg4+ 18. Kh1 Kg8 19. Rf3 Qe6 20. e5 d5 21. Rf6 Qe7 22. h3 Rg5 23. f4 Rg3 24. Qxh5 Rxh3+ 25. Qxh3 Bxh3 26. Rg1+ Bxg1 0-1

[Event "Blonduos Icelandic op"]
[Site "Blonduos"]
[Date "2025.06.18"]
[Round "6"]
[White "Bjornsson, Bjorn"]
[Black "Thorhallsson, Simon"]
[Result "0-1"]
[ECO "B08"]
[BlackElo "2202"]
[PlyCount "48"]
[EventDate "2025.06.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ISL"]
[SourceTitle "CB26_2025"]
[SourceDate "2025.06.25"]
[SourceVersion "1"]
[SourceVersionDate "2025.06.25"]
[SourceQuality "1"]

1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. Be2 Nf6 5. Nc3 0-0 6. 0-0 a6 7. h3 b5 8. a3 Bb7 9. Bd3 Nbd7 10. Re1 e5 11. Bg5 h6 12. dxe5 dxe5 13. Bd2 Qe7 14. Qc1 Kh7 15. Nh2 Nc5 16. f4 exf4 17. Nd5 Nxd5 18. exd5 Qd7 19. Bxf4 Nxd3 20. cxd3 Qxd5 21. Qc2 Rae8 22. Nf3 c5 23. Rad1 Bc8 24. Nd2 Qd4+ 0-1

[Event "Blonduos Icelandic op"]
[Site "Blonduos"]
[Date "2025.06.17"]
[Round "4"]
[White "Bjornsson, Bjorn"]
[Black "Ptacnikova, Lenka"]
[Result "0-1"]
[ECO "B40"]
[BlackElo "2158"]
[PlyCount "82"]
[EventDate "2025.06.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ISL"]
[SourceTitle "CB26_2025"]
[SourceDate "2025.06.25"]
[SourceVersion "1"]
[SourceVersionDate "2025.06.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nxc6 bxc6 6. Bd3 Nf6 7. 0-0 d5 8. Bg5 h6 9. Bxf6 gxf6 10. exd5 cxd5 11. Bb5+ Bd7 12. Qd3 Bd6 13. Re1 Bxb5 14. Qxb5+ Qd7 15. Qxd7+ Kxd7 16. Nd2 Rab8 17. Rab1 Rhc8 18. c3 Rc6 19. Nb3 Ra6 20. Ra1 Ke7 21. Reb1 Rab6 22. Nd4 Be5 23. b3 Rc8 24. Rc1 Rb7 25. g3 Rxc3 26. Rxc3 Bxd4 27. Rac1 Bxc3 28. Rxc3 d4 29. Rc4 e5 30. Kf1 Kd6 31. Ke2 Kd5 32. f3 f5 33. Rc8 Rb6 34. Rd8+ Rd6 35. Rxd6+ Kxd6 36. a4 Kc5 37. Kd3 Kb4 38. f4 f6 39. fxe5 fxe5 40. Kc2 e4 41. h3 d3+ 0-1

[Event "Blonduos Icelandic op"]
[Site "Blonduos"]
[Date "2025.06.16"]
[Round "3"]
[White "Omarsson, Josef"]
[Black "Bjornsson, Bjorn"]
[Result "1-0"]
[ECO "D35"]
[WhiteElo "2030"]
[PlyCount "131"]
[EventDate "2025.06.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ISL"]
[SourceTitle "CB26_2025"]
[SourceDate "2025.06.25"]
[SourceVersion "1"]
[SourceVersionDate "2025.06.25"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. cxd5 exd5 5. Bg5 Be7 6. e3 h6 7. Bh4 0-0 8. Bd3 a6 9. Nf3 Bg4 10. h3 Bh5 11. Bxf6 Bxf6 12. g4 Bg6 13. Bxg6 fxg6 14. Qb3 Bh4 15. Nxh4 Qxh4 16. Qxd5+ Kh7 17. Qg2 Nc6 18. 0-0 Rf7 19. Rad1 Raf8 20. f4 Qe7 21. Nd5 Qe6 22. e4 Na5 23. f5 gxf5 24. gxf5 Qd7 25. Nf4 Nc4 26. Rd3 Rf6 27. b3 Nd6 28. Ng6 Re8 29. Ne5 Qe7 30. Ng4 Rff8 31. Ne5 Rf6 32. Rg3 Nb5 33. Ng4 Rf7 34. e5 Nxd4 35. f6 Qc5 36. Kh2 h5 37. Nh6 gxh6 38. Rg7+ Kh8 39. Rxf7 Qxe5+ 40. Kh1 Qg5 41. Qxg5 hxg5 42. Re7 Rf8 43. Rxc7 Ne2 44. Kh2 Nf4 45. f7 b5 46. Rg1 Ne6 47. Re7 Nd4 48. Rf1 Kg7 49. Ra7 Ne6 50. Rxa6 Rxf7 51. Rxf7+ Kxf7 52. Rb6 Nd4 53. Rd6 Nf3+ 54. Kg3 g4 55. Rd5 Ne1 56. hxg4 hxg4 57. Rxb5 Nc2 58. Kxg4 Ke6 59. Kf4 Kd6 60. Ke4 Kc6 61. a4 Na3 62. Rb8 Kc7 63. Rb4 Kc6 64. Kd3 Kc5 65. Rb8 Kd5 66. Kc3 1-0

[Event "Blonduos Icelandic op"]
[Site "Blonduos"]
[Date "2025.06.15"]
[Round "1"]
[White "Karason, Askell Orn"]
[Black "Bjornsson, Bjorn"]
[Result "1-0"]
[ECO "A29"]
[WhiteElo "2099"]
[PlyCount "69"]
[EventDate "2025.06.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ISL"]
[SourceTitle "CB26_2025"]
[SourceDate "2025.06.25"]
[SourceVersion "1"]
[SourceVersionDate "2025.06.25"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 d5 5. cxd5 Nxd5 6. Bg2 Nxc3 7. bxc3 Be7 8. 0-0 0-0 9. Rb1 Rb8 10. d3 Bf5 11. Qa4 a6 12. Be3 Re8 13. Nd2 Bd7 14. Qc2 b6 15. Rfc1 Bg5 16. Nc4 b5 17. Bxg5 Qxg5 18. Ne3 Ne7 19. d4 Bf5 20. Nxf5 Qxf5 21. Be4 Qh5 22. dxe5 Rb6 23. f4 c5 24. Bf3 Qh3 25. e4 f5 26. Qg2 Qxg2+ 27. Bxg2 g6 28. Rd1 b4 29. cxb4 Rxb4 30. Rxb4 cxb4 31. Rd6 Ra8 32. exf5 Ra7 33. f6 Nf5 34. Rd8+ Kf7 35. Bd5# 1-0

