[Event "Kowalewo Pomorskie op-B 16th"]
[Site "Kowalewo Pomorskie"]
[Date "2009.07.11"]
[Round "9"]
[White "Siwon, Bogdan"]
[Black "Urban, Jacek"]
[Result "1-0"]
[ECO "D55"]
[WhiteElo "1956"]
[PlyCount "35"]
[EventDate "2009.07.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "EXT 2011"]
[Source "ChessBase"]
[SourceDate "2010.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.26"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 d5 3. c4 c6 4. Nc3 e6 5. Bg5 Be7 6. e3 0-0 7. Rc1 b6 8. cxd5 exd5 9. Bd3 Ba6 10. 0-0 Bxd3 11. Qxd3 c5 12. dxc5 bxc5 13. Bxf6 Bxf6 14. Nxd5 Nc6 15. Rxc5 Qd6 16. Nxf6+ Qxf6 17. Qc3 Qxc3 18. Rxc3 1-0

[Event "Kowalewo Pomorskie op-B 16th"]
[Site "Kowalewo Pomorskie"]
[Date "2009.07.09"]
[Round "8"]
[White "Chmura, Krystian"]
[Black "Siwon, Bogdan"]
[Result "1/2-1/2"]
[ECO "C01"]
[WhiteElo "1604"]
[BlackElo "1956"]
[PlyCount "49"]
[EventDate "2009.07.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "EXT 2011"]
[Source "ChessBase"]
[SourceDate "2010.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.26"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. exd5 exd5 4. Bd3 Nf6 5. h3 Be7 6. Qf3 0-0 7. Ne2 Re8 8. 0-0 Nbd7 9. Bf4 Nf8 10. Nd2 c6 11. Rfe1 Be6 12. Nf1 Ng6 13. Bh2 Bd6 14. Nf4 Nh4 15. Qd1 Qd7 16. Nxe6 Rxe6 17. Bxd6 Qxd6 18. c3 Rae8 19. Qd2 Ne4 20. Qc2 Qf4 21. Bxe4 Rxe4 22. Rxe4 Rxe4 23. Qd2 Qf6 24. Re1 Rxe1 25. Qxe1 1/2-1/2

[Event "Kowalewo Pomorskie op-B 16th"]
[Site "Kowalewo Pomorskie"]
[Date "2009.07.09"]
[Round "7"]
[White "Siwon, Bogdan"]
[Black "Walczak, Michal"]
[Result "0-1"]
[ECO "D42"]
[WhiteElo "1956"]
[PlyCount "39"]
[EventDate "2009.07.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "EXT 2011"]
[Source "ChessBase"]
[SourceDate "2010.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.26"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nf3 c5 4. e3 Nf6 5. Nc3 Nc6 6. Bd3 Be7 7. 0-0 0-0 8. a3 cxd4 9. exd4 a6 10. cxd5 Nxd5 11. Qc2 Nf6 12. Rd1 b5 13. Ne4 Nxd4 14. Nxd4 Qxd4 15. Nxf6+ Qxf6 16. Bxh7+ Kh8 17. Be4 Ra7 18. Be3 Rd7 19. Rxd7 Bxd7 20. Qd1 0-1

[Event "Kowalewo Pomorskie op-B 16th"]
[Site "Kowalewo Pomorskie"]
[Date "2009.07.08"]
[Round "6"]
[White "Zebracki, Tomasz"]
[Black "Siwon, Bogdan"]
[Result "1-0"]
[ECO "B01"]
[WhiteElo "1779"]
[BlackElo "1956"]
[PlyCount "67"]
[EventDate "2009.07.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "EXT 2011"]
[Source "ChessBase"]
[SourceDate "2010.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.26"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd6 4. d4 Nf6 5. Bc4 a6 6. Nge2 b5 7. Bb3 Bb7 8. 0-0 e6 9. Bf4 Qd8 10. d5 exd5 11. Nd4 Be7 12. Nf5 0-0 13. Nxd5 Nxd5 14. Bxd5 Bxd5 15. Qxd5 c6 16. Qxd8 Bxd8 17. Bd6 Nd7 18. Bxf8 Kxf8 19. Rad1 Nb6 20. Rfe1 Bf6 21. b3 Nd5 22. Nd4 Nc3 23. Rd3 Nxa2 24. Nxc6 g6 25. Rd6 Kg7 26. Ne5 Re8 27. Rxf6 Rxe5 28. Rxg6+ hxg6 29. Rxe5 Kf6 30. Rc5 Nb4 31. c4 bxc4 32. Rxc4 a5 33. Rc5 Nd3 34. Rxa5 1-0

[Event "Kowalewo Pomorskie op-B 16th"]
[Site "Kowalewo Pomorskie"]
[Date "2009.07.07"]
[Round "5"]
[White "Siwon, Bogdan"]
[Black "Jasnikowska, Daria"]
[Result "1-0"]
[ECO "D55"]
[WhiteElo "1956"]
[BlackElo "1726"]
[PlyCount "115"]
[EventDate "2009.07.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "EXT 2011"]
[Source "ChessBase"]
[SourceDate "2010.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.26"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Bg5 Be7 5. e3 0-0 6. Nc3 b6 7. cxd5 exd5 8. Bd3 Bb7 9. Rc1 Nbd7 10. 0-0 c5 11. Re1 Re8 12. a3 a6 13. Bf5 g6 14. Bh3 Kg7 15. Ne5 Nxe5 16. dxe5 Ng8 17. Bxe7 Nxe7 18. Qc2 Bc8 19. Bxc8 Rxc8 20. Rcd1 d4 21. Ne4 Nc6 22. Nd6 Rxe5 23. Nxc8 Qxc8 24. exd4 Nxd4 25. Qc3 Rd5 26. Rd3 Qf5 27. Rf3 Qd7 28. h3 b5 29. Rfe3 Qf5 30. Re8 Rd6 31. R8e5 Qf6 32. Rxc5 Ne6 33. Qxf6+ Kxf6 34. Rc7 Nd4 35. Rcc1 Nb3 36. Rcd1 Rc6 37. Re2 h5 38. Kf1 g5 39. Re3 Na5 40. Red3 Ke6 41. g3 Nc4 42. Re1+ Kf6 43. Rf3+ Kg6 44. Re2 Rd6 45. Rc3 f5 46. f3 f4 47. Kf2 Ne3 48. Rc1 Kf5 49. Rc5+ Kg6 50. gxf4 gxf4 51. Rc1 Nd1+ 52. Ke1 Ne3 53. Rd2 Re6 54. Kf2 Nc4 55. Rdc2 Kg5 56. a4 Re5 57. axb5 axb5 58. b3 1-0

[Event "Kowalewo Pomorskie op-B 16th"]
[Site "Kowalewo Pomorskie"]
[Date "2009.07.07"]
[Round "4"]
[White "Stachowicz, Feliks"]
[Black "Siwon, Bogdan"]
[Result "1/2-1/2"]
[ECO "D66"]
[WhiteElo "1680"]
[BlackElo "1956"]
[PlyCount "67"]
[EventDate "2009.07.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "EXT 2011"]
[Source "ChessBase"]
[SourceDate "2010.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.26"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. Bg5 e6 4. e3 Be7 5. c4 c6 6. Nc3 Nbd7 7. a3 0-0 8. Bd3 dxc4 9. Bxc4 b5 10. Bd3 a6 11. Rc1 c5 12. 0-0 Bb7 13. dxc5 Nxc5 14. Be2 Qxd1 15. Rfxd1 Rac8 16. Nd4 h6 17. Bh4 Rfd8 18. h3 g5 19. Bg3 Nd5 20. Nxd5 Bxd5 21. f3 Bf6 22. e4 Bxd4+ 23. Rxd4 Nb3 24. Rxc8 Rxc8 25. Rb4 a5 26. Rxb5 Nd4 27. Bf1 Nxb5 28. exd5 Rc1 29. dxe6 fxe6 30. Be5 Kf7 31. Kf2 Nc7 32. Bd3 Nd5 33. Be4 Rc8 34. g3 1/2-1/2

[Event "Kowalewo Pomorskie op-B 16th"]
[Site "Kowalewo Pomorskie"]
[Date "2009.07.06"]
[Round "3"]
[White "Siwon, Bogdan"]
[Black "Witbrodt, Jakub"]
[Result "1/2-1/2"]
[ECO "D43"]
[WhiteElo "1956"]
[BlackElo "1668"]
[PlyCount "55"]
[EventDate "2009.07.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "EXT 2011"]
[Source "ChessBase"]
[SourceDate "2010.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.26"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nc3 e6 4. Nf3 Nf6 5. Bg5 h6 6. Bxf6 Qxf6 7. e3 Nd7 8. Rc1 b6 9. cxd5 exd5 10. Bd3 Bb7 11. 0-0 Bb4 12. a3 Bxc3 13. Rxc3 0-0 14. Qc2 Rfd8 15. Bh7+ Kh8 16. Bf5 g6 17. Bxd7 Rxd7 18. Ne5 Rc7 19. Nd3 Rac8 20. Rc1 Qd6 21. b4 a6 22. a4 Kg7 23. b5 axb5 24. axb5 Qf6 25. f4 Qe6 26. Ne5 c5 27. Qf2 c4 28. Rf1 1/2-1/2

[Event "Kowalewo Pomorskie op-B 16th"]
[Site "Kowalewo Pomorskie"]
[Date "2009.07.05"]
[Round "2"]
[White "Borkowski, Helmut"]
[Black "Siwon, Bogdan"]
[Result "0-1"]
[ECO "D00"]
[WhiteElo "1502"]
[BlackElo "1956"]
[PlyCount "44"]
[EventDate "2009.07.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "EXT 2011"]
[Source "ChessBase"]
[SourceDate "2010.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.26"]
[SourceQuality "1"]

1. d4 d5 2. Nc3 Nf6 3. Bf4 e6 4. Nf3 c5 5. h3 Nc6 6. e3 a6 7. Be2 Be7 8. g4 h6 9. Ne5 cxd4 10. exd4 Qb6 11. Be3 Bb4 12. 0-0 Bxc3 13. bxc3 Ne4 14. Qd3 Qa5 15. Bd2 Nxd2 16. Qxd2 Nxe5 17. dxe5 Bd7 18. Qd4 Rc8 19. c4 dxc4 20. Bxc4 Qa4 21. Rfd1 Rxc4 22. Qd6 Qc6 0-1

[Event "Kowalewo Pomorskie op-B 16th"]
[Site "Kowalewo Pomorskie"]
[Date "2009.07.04"]
[Round "1"]
[White "Siwon, Bogdan"]
[Black "Sokolowska, Aneta"]
[Result "0-1"]
[ECO "D56"]
[WhiteElo "1956"]
[BlackElo "1688"]
[PlyCount "88"]
[EventDate "2009.07.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "EXT 2011"]
[Source "ChessBase"]
[SourceDate "2010.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.26"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 d5 3. c4 e6 4. Bg5 Be7 5. e3 Nbd7 6. Nc3 0-0 7. Rc1 c6 8. cxd5 Nxd5 9. Bxe7 Qxe7 10. Bd3 Nxc3 11. Rxc3 e5 12. dxe5 Nxe5 13. Nxe5 Qxe5 14. Qc2 h6 15. 0-0 Be6 16. Rc5 Qf6 17. b4 Rfd8 18. Rd1 Kf8 19. a4 Rd6 20. Be4 Rxd1+ 21. Qxd1 Rd8 22. Qc1 Bb3 23. Bf3 Bxa4 24. Ra5 Bb5 25. Rxa7 Ba6 26. h3 Qd6 27. b5 cxb5 28. Bxb7 Bxb7 29. Rxb7 Rb8 30. Qc7 Qd1+ 31. Kh2 Rxb7 32. Qc8+ Ke7 33. Qxb7+ Qd7 34. Qe4+ Kd6 35. Qd4+ Kc6 36. Qxg7 b4 37. g3 Qe6 38. Qf8 b3 39. Qa8+ Kb5 40. Qb7+ Kc4 41. e4 Kc3 42. Qc7+ Qc4 43. Qb6 b2 44. Qxh6 b1Q 0-1

[Event "Kowalewo Pomorskie op-B"]
[Site "Kowalewo Pomorskie"]
[Date "2008.07.12"]
[Round "8.22"]
[White "Ostrowska, Marta"]
[Black "Siwon, Bogdan"]
[Result "1-0"]
[ECO "B01"]
[WhiteElo "1615"]
[BlackElo "1995"]
[PlyCount "72"]
[EventDate "2008.07.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd6 4. d4 Nf6 5. Nf3 a6 6. Bd3 Nbd7 7. 0-0 e6 8. Qe2 Be7 9. Rd1 0-0 10. Ne5 Nb6 11. Bf4 Nbd5 12. Bg3 Nxc3 13. bxc3 Qd8 14. c4 Bd7 15. Rab1 b6 16. Qf3 Rb8 17. c5 bxc5 18. dxc5 Rxb1 19. Rxb1 Bxc5 20. Bxa6 Ba4 21. Qc3 Bd4 22. Qc4 Bxe5 23. Bxe5 Bd7 24. Qxc7 Nd5 25. Qxd8 Rxd8 26. c4 f6 27. cxd5 fxe5 28. dxe6 Bxe6 29. a4 Rd4 30. Bb5 Ba2 31. Ra1 Bb3 32. a5 Rb4 33. Be2 Bd5 34. a6 Kf7 35. f3 Rb8 36. Ra5 e4 1-0

[Event "Kowalewo Pomorskie op-B"]
[Site "Kowalewo Pomorskie"]
[Date "2008.07.12"]
[Round "9.26"]
[White "Siwon, Bogdan"]
[Black "Borkowski, Helmut"]
[Result "1/2-1/2"]
[ECO "E60"]
[WhiteElo "1995"]
[BlackElo "1449"]
[PlyCount "12"]
[EventDate "2008.07.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 d6 2. c4 g6 3. g3 Bg7 4. Bg2 c6 5. Nf3 Nf6 6. 0-0 0-0 1/2-1/2

[Event "Kowalewo Pomorskie op-B"]
[Site "Kowalewo Pomorskie"]
[Date "2008.07.09"]
[Round "7.14"]
[White "Siwon, Bogdan"]
[Black "Budakow, Adrian"]
[Result "0-1"]
[ECO "E65"]
[WhiteElo "1995"]
[BlackElo "1886"]
[PlyCount "104"]
[EventDate "2008.07.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 g6 2. Nf3 Bg7 3. g3 Nf6 4. Bg2 d6 5. c4 0-0 6. Nc3 Nbd7 7. 0-0 c5 8. d5 Nb6 9. Qd3 Qc7 10. e4 a6 11. Re1 e6 12. h3 exd5 13. cxd5 c4 14. Qc2 Nbd7 15. Be3 b5 16. Rac1 Nc5 17. Bf1 Re8 18. Nd2 Nfd7 19. b4 Nb7 20. Ne2 Ne5 21. Nd4 f6 22. f4 Nf7 23. Bf2 Nh6 24. N2f3 Bd7 25. Bg2 f5 26. Ng5 fxe4 27. Bxe4 Nd8 28. Nge6 Bxe6 29. dxe6 Rc8 30. g4 d5 31. Bxd5 Qxf4 32. Qe4 Qd6 33. e7+ Ndf7 34. g5 Bxd4 35. Qxd4 Nf5 36. Bxf7+ Kxf7 37. Qxd6 Nxd6 38. Bc5 Nb7 39. Rf1+ Kg7 40. Bd4+ Kg8 41. Bf6 Nd6 42. Rcd1 Ne4 43. Rd8 Nxf6 44. Rxc8 Rxc8 45. gxf6 Kf7 46. Rd1 Re8 47. Rd6 c3 48. Rxa6 Rc8 49. e8Q+ Kxe8 50. Re6+ Kf7 51. Re1 Kxf6 52. Rc1 Ke5 0-1

[Event "Kowalewo Pomorskie op-B"]
[Site "Kowalewo Pomorskie"]
[Date "2008.07.08"]
[Round "5.17"]
[White "Ryngwelski, Olaf"]
[Black "Siwon, Bogdan"]
[Result "0-1"]
[ECO "D37"]
[WhiteElo "1786"]
[BlackElo "1995"]
[PlyCount "88"]
[EventDate "2008.07.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Nc3 Nbd7 5. Bf4 c6 6. e3 Bb4 7. a3 Bxc3+ 8. bxc3 Ne4 9. Qb3 h6 10. Nd2 Nxd2 11. Kxd2 0-0 12. h4 Re8 13. cxd5 exd5 14. Bd3 Nf6 15. Qd1 Ne4+ 16. Bxe4 Rxe4 17. f3 Re6 18. g4 f6 19. Qc2 Qe8 20. h5 Qf7 21. Rae1 Bd7 22. e4 dxe4 23. Rxe4 Rxe4 24. Qxe4 Qa2+ 25. Qc2 Qd5 26. Qd3 Re8 27. Rc1 Qa2+ 28. Rc2 Qxa3 29. Bxh6 Qe7 30. Be3 f5 31. h6 fxg4 32. h7+ Kh8 33. fxg4 Bxg4 34. Rc1 Bf5 35. Qe2 Qe4 36. c4 Bxh7 37. Rc3 Qb1 38. Qh5 Qb2+ 39. Kd1 Rf8 40. Bd2 Qb1+ 41. Bc1 Qe4 42. Qe5 Rf1+ 43. Kd2 Rf2+ 44. Kd1 Qg4+ 0-1

[Event "Kowalewo Pomorskie op-B"]
[Site "Kowalewo Pomorskie"]
[Date "2008.07.07"]
[Round "4.5"]
[White "Siwon, Bogdan"]
[Black "Choroszej, Aleksander"]
[Result "0-1"]
[ECO "E60"]
[WhiteElo "1995"]
[BlackElo "1887"]
[PlyCount "88"]
[EventDate "2008.07.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 0-0 5. 0-0 d6 6. c4 c5 7. d5 Bd7 8. Nc3 Na6 9. e4 Nc7 10. Re1 a6 11. e5 Nfe8 12. Qe2 Bg4 13. exd6 exd6 14. h3 Bd7 15. Bf4 b5 16. Rad1 bxc4 17. Qxc4 Rb8 18. Qe2 Nb5 19. Nxb5 Bxb5 20. Qd2 a5 21. Bh6 a4 22. Bxg7 Kxg7 23. Qc3+ Qf6 24. Re3 Qxc3 25. Rxc3 Nf6 26. b3 axb3 27. Rxb3 Bc4 28. Rxb8 Rxb8 29. Ra1 Bxd5 30. a4 Ra8 31. a5 c4 32. Nd4 Bxg2 33. Kxg2 Nd5 34. f4 c3 35. Kf3 Nb4 36. Ke2 Re8+ 37. Kd1 Re4 38. Nc2 Na6 39. Ra3 Rc4 40. Ke2 d5 41. Kd3 Nc5+ 42. Ke3 Na6 43. Rb3 d4+ 44. Nxd4 c2 0-1

[Event "Kowalewo Pomorskie op-B"]
[Site "Kowalewo Pomorskie"]
[Date "2008.07.06"]
[Round "3.1"]
[White "Kobus, Sebastian"]
[Black "Siwon, Bogdan"]
[Result "1-0"]
[ECO "B01"]
[WhiteElo "1901"]
[BlackElo "1995"]
[PlyCount "61"]
[EventDate "2008.07.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd6 4. d4 Nf6 5. g3 a6 6. Bg2 Nbd7 7. Nf3 e6 8. 0-0 Nb6 9. Re1 Be7 10. a4 Nbd5 11. Nxd5 Nxd5 12. c4 Nb4 13. Bf4 Qd8 14. a5 0-0 15. Qb3 c5 16. dxc5 Bxc5 17. Red1 Qe7 18. Nd2 g5 19. Be3 Bxe3 20. fxe3 Nc6 21. Ne4 Rd8 22. Qb6 f5 23. Nc5 Rxd1+ 24. Rxd1 Kf7 25. Bxc6 bxc6 26. Qxc6 Rb8 27. Nd7 Bb7 28. Qc7 Rd8 29. Ne5+ Ke8 30. Rxd8+ Qxd8 31. Qf7# 1-0

[Event "Kowalewo Pomorskie op-B"]
[Site "Kowalewo Pomorskie"]
[Date "2008.07.04"]
[Round "1.2"]
[White "Grota, Mateusz"]
[Black "Siwon, Bogdan"]
[Result "0-1"]
[ECO "B01"]
[WhiteElo "1767"]
[BlackElo "1995"]
[PlyCount "64"]
[EventDate "2008.07.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd6 4. d4 Nf6 5. Bc4 a6 6. Bb3 e6 7. Nge2 b5 8. a3 Bb7 9. f3 Nbd7 10. Bf4 Qb6 11. Qd2 c5 12. d5 c4 13. dxe6 fxe6 14. Ba2 Bc5 15. 0-0-0 e5 16. Rhe1 Bf2 17. Ng3 Bxe1 18. Qxe1 0-0 19. Be3 Qe6 20. Qe2 Nd5 21. Nge4 Nxc3 22. Nxc3 Rfe8 23. Qf2 Rac8 24. h4 Nf6 25. Bb1 e4 26. fxe4 Nxe4 27. Nxe4 Qxe4 28. Bd4 Rf8 29. Qg3 Qxg2 30. Qxg2 Bxg2 31. c3 Rce8 32. Rg1 Rf1+ 0-1

[Event "Kowalewo Pomorskie op-B"]
[Site "Kowalewo Pomorskie"]
[Date "2008.07.04"]
[Round "2.1"]
[White "Siwon, Bogdan"]
[Black "Kaczmarek, Alicja"]
[Result "1-0"]
[ECO "A95"]
[WhiteElo "1995"]
[BlackElo "1879"]
[PlyCount "87"]
[EventDate "2008.07.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nc3 f5 4. Nf3 e6 5. g3 Nf6 6. Bg2 Be7 7. 0-0 0-0 8. cxd5 exd5 9. Ng5 Ne4 10. Nh3 Nd7 11. f3 Nd6 12. Bf4 Nf6 13. Qd3 h6 14. Rae1 Be6 15. b3 Qd7 16. Be5 Rae8 17. Nf2 Nf7 18. Bf4 Bd6 19. Bxd6 Nxd6 20. Na4 Re7 21. Nc5 Qe8 22. Nxe6 Rxe6 23. Bh3 Re3 24. Qd2 Nh7 25. Ne4 Rxe4 26. fxe4 Nxe4 27. Qe3 Qh5 28. Bg2 Nhg5 29. h4 Ne6 30. Bxe4 dxe4 31. Rd1 g5 32. d5 cxd5 33. Rxd5 Qg4 34. Re5 Nf4 35. Kf2 Nh3+ 36. Ke1 gxh4 37. gxh4 Qxh4+ 38. Kd1 Rd8+ 39. Kc2 Rc8+ 40. Kb1 Ng5 41. Rexf5 b6 42. Qd4 Qh2 43. Qd5+ Kg7 44. Qd7+ 1-0

[Event "Kowalewo Pomorskie op-A"]
[Site "Kowalewo Pomorskie"]
[Date "2007.07.09"]
[Round "7"]
[White "Bartosik, Piotr1"]
[Black "Siwon, Bogdan"]
[Result "1/2-1/2"]
[ECO "B01"]
[WhiteElo "2024"]
[BlackElo "2021"]
[PlyCount "40"]
[EventDate "2007.07.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 119 Extra"]
[Source "ChessBase"]
[SourceDate "2007.09.04"]
[SourceVersion "1"]
[SourceVersionDate "2007.09.04"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd6 4. d4 Nf6 5. Bc4 a6 6. Nf3 b5 7. Bb3 Bb7 8. Ne5 e6 9. Bf4 Qd8 10. 0-0 Be7 11. a3 0-0 12. Bg3 Nbd7 13. Qe2 Nd5 14. Ne4 Rc8 15. a4 Nxe5 16. Bxe5 b4 17. Rad1 Re8 18. Rd3 Nf6 19. Ng5 Nd5 20. Ne4 Nf6 1/2-1/2

[Event "Kowalewo Pomorskie op-A"]
[Site "Kowalewo Pomorskie"]
[Date "2007.07.09"]
[Round "8"]
[White "Siwon, Bogdan"]
[Black "Klugiewicz, Jozef"]
[Result "1/2-1/2"]
[ECO "A53"]
[WhiteElo "2021"]
[BlackElo "2033"]
[PlyCount "50"]
[EventDate "2007.07.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 119 Extra"]
[Source "ChessBase"]
[SourceDate "2007.09.04"]
[SourceVersion "1"]
[SourceVersionDate "2007.09.04"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 d6 3. Nc3 e5 4. dxe5 dxe5 5. Qc2 Nc6 6. Bg5 Nd4 7. Qd2 h6 8. Bxf6 Qxf6 9. e3 Ne6 10. Nf3 Bb4 11. a3 Bxc3 12. Qxc3 e4 13. Nd4 a6 14. c5 0-0 15. Rc1 Nxd4 16. exd4 Rd8 17. Rd1 Bg4 18. Rd2 c6 19. Be2 Bxe2 20. Kxe2 Rd5 21. Rhd1 Rad8 22. Qe3 Qe6 23. Kf1 f5 24. f3 Re8 25. Kg1 Rd7 1/2-1/2

[Event "Kowalewo Pomorskie op-A"]
[Site "Kowalewo Pomorskie"]
[Date "2007.07.08"]
[Round "6"]
[White "Siwon, Bogdan"]
[Black "Grajczak, Adrian"]
[Result "0-1"]
[ECO "B27"]
[WhiteElo "2021"]
[BlackElo "2000"]
[PlyCount "101"]
[EventDate "2007.07.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 119 Extra"]
[Source "ChessBase"]
[SourceDate "2007.09.04"]
[SourceVersion "1"]
[SourceVersionDate "2007.09.04"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 g6 3. c3 Bg7 4. d4 cxd4 5. cxd4 d5 6. e5 Nh6 7. Bb5+ Nc6 8. 0-0 0-0 9. h3 f6 10. exf6 exf6 11. Nc3 Be6 12. Re1 Bf7 13. a3 Nf5 14. Bf4 Rc8 15. Rc1 Nd6 16. Qa4 a6 17. Bd3 Re8 18. Rxe8+ Nxe8 19. b4 Ne7 20. b5 g5 21. Be3 axb5 22. Qxb5 Nd6 23. Qb1 h5 24. Nd2 Rc6 25. Nb5 Nxb5 26. Bxb5 Bg6 27. Qa1 Rc7 28. Nb3 b6 29. Rxc7 Qxc7 30. Qc1 Qd6 31. Bd2 Nf5 32. Bb4 Qe6 33. Qc7 Qe4 34. Qc3 Nh4 35. f3 Qf4 36. Qd2 Qf5 37. Qe1 Qc2 38. Nd2 Bf7 39. Be8 Qb2 40. Bxf7+ Kxf7 41. Qe7+ Kg6 42. Qe8+ Kh6 43. Qe3 f5 44. Qe6+ Ng6 45. Qxd5 Bxd4+ 46. Kh2 Be5+ 47. Kg1 Qa1+ 48. Nf1 Bd4+ 49. Kh2 Qd1 50. Qc4 h4 51. Bd2 0-1

[Event "Kowalewo Pomorskie op-A"]
[Site "Kowalewo Pomorskie"]
[Date "2007.07.07"]
[Round "5"]
[White "Hiszczynski, Jakub"]
[Black "Siwon, Bogdan"]
[Result "1/2-1/2"]
[ECO "A16"]
[WhiteElo "2010"]
[BlackElo "2021"]
[PlyCount "63"]
[EventDate "2007.07.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 119 Extra"]
[Source "ChessBase"]
[SourceDate "2007.09.04"]
[SourceVersion "1"]
[SourceVersionDate "2007.09.04"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 d5 3. cxd5 Nxd5 4. e4 Nb4 5. Nf3 Nd3+ 6. Bxd3 Qxd3 7. Qe2 Qxe2+ 8. Nxe2 c5 9. d4 Na6 10. 0-0 Bg4 11. Be3 Bxf3 12. gxf3 e6 13. Rac1 b6 14. Rfd1 Rd8 15. dxc5 Rxd1+ 16. Rxd1 Bxc5 17. Nd4 0-0 18. Nc6 Nb4 19. Nxb4 Bxb4 20. a3 Bc5 21. Bxc5 bxc5 22. Rd7 Rb8 23. Rxa7 g6 24. Rc7 Rxb2 25. Rxc5 Rb3 26. a4 Rxf3 27. a5 Ra3 28. Rc8+ Kg7 29. Ra8 Kf6 30. Ra7 Ke5 31. Rxf7 Kxe4 32. Rxh7 1/2-1/2

[Event "Kowalewo Pomorskie op-A"]
[Site "Kowalewo Pomorskie"]
[Date "2007.07.06"]
[Round "4"]
[White "Siwon, Bogdan"]
[Black "Opalinski, Sebastian"]
[Result "1/2-1/2"]
[ECO "A52"]
[WhiteElo "2021"]
[BlackElo "1813"]
[PlyCount "66"]
[EventDate "2007.07.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 119 Extra"]
[Source "ChessBase"]
[SourceDate "2007.09.04"]
[SourceVersion "1"]
[SourceVersionDate "2007.09.04"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e5 3. dxe5 Ng4 4. e4 Nxe5 5. f4 Bb4+ 6. Nc3 Ng6 7. Nf3 Nc6 8. Bd3 d6 9. 0-0 Bc5+ 10. Kh1 Bg4 11. h3 h5 12. Qe1 Nb4 13. Bb1 Bxf3 14. Rxf3 Qh4 15. Rf1 Qxe1 16. Rxe1 0-0-0 17. a3 Nc6 18. Bd3 Nd4 19. Rb1 Nb3 20. e5 dxe5 21. Bf5+ Kb8 22. Bxg6 fxg6 23. fxe5 Rhe8 24. Bg5 Rd4 25. Nd5 Rxc4 26. Rbd1 Rd4 27. Nf4 Rxe5 28. Nxg6 Rxd1 29. Rxd1 Re8 30. Nf4 a6 31. Nxh5 Bd4 32. Rd3 Re1+ 33. Kh2 Bg1+ 1/2-1/2

[Event "Kowalewo Pomorskie op-A"]
[Site "Kowalewo Pomorskie"]
[Date "2007.07.05"]
[Round "3"]
[White "Kotermanska, Anna"]
[Black "Siwon, Bogdan"]
[Result "1-0"]
[ECO "B01"]
[WhiteElo "1980"]
[BlackElo "2021"]
[PlyCount "93"]
[EventDate "2007.07.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 119 Extra"]
[Source "ChessBase"]
[SourceDate "2007.09.04"]
[SourceVersion "1"]
[SourceVersionDate "2007.09.04"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd6 4. Nf3 Nf6 5. d4 a6 6. Be2 b5 7. a3 Bb7 8. Be3 e6 9. Qd2 Be7 10. Bf4 Qd8 11. 0-0 0-0 12. Rfe1 Nbd7 13. Rad1 Rc8 14. Ne5 Nb6 15. Bg3 b4 16. axb4 Bxb4 17. Bd3 Nbd5 18. Bh4 Qd6 19. f4 c5 20. dxc5 Bxc5+ 21. Kh1 Bb4 22. Rf1 Kh8 23. Qf2 Qc7 24. Nxd5 Nxd5 25. Qe2 f5 26. Bg5 Be7 27. Bxe7 Qxe7 28. Qh5 Kg8 29. Qh4 Qe8 30. Rf2 Ne3 31. Ra1 Qd8 32. Qg3 Qd4 33. c3 Qa7 34. Re2 Nd5 35. Rae1 Nf6 36. Bc4 Bd5 37. Bxd5 Nxd5 38. Nf3 Nf6 39. Ng5 h6 40. Nxe6 Rfe8 41. Qg6 Ne4 42. h3 Re7 43. Nd4 Qc5 44. Kh2 Rf7 45. Qxa6 Qc7 46. g3 g5 47. Qg6+ 1-0

[Event "Kowalewo Pomorskie op-A"]
[Site "Kowalewo Pomorskie"]
[Date "2007.07.04"]
[Round "2"]
[White "Siwon, Bogdan"]
[Black "Czartoryski, Pawel"]
[Result "0-1"]
[ECO "E62"]
[WhiteElo "2021"]
[BlackElo "2066"]
[PlyCount "114"]
[EventDate "2007.07.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 119 Extra"]
[Source "ChessBase"]
[SourceDate "2007.09.04"]
[SourceVersion "1"]
[SourceVersionDate "2007.09.04"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 d6 3. Nf3 g6 4. g3 Bg7 5. Bg2 0-0 6. Nc3 Nc6 7. 0-0 e5 8. dxe5 dxe5 9. Qxd8 Rxd8 10. Bg5 Be6 11. Nd2 h6 12. Bxf6 Bxf6 13. Nd5 Bxd5 14. Bxd5 Ne7 15. Rad1 Nxd5 16. Ne4 Nb6 17. Nxf6+ Kg7 18. Ng4 Nxc4 19. Rxd8 Rxd8 20. Rc1 Rd4 21. f3 h5 22. Nf2 c6 23. b3 Nd6 24. Nd3 e4 25. fxe4 Nxe4 26. Kf1 Nd6 27. Ke1 h4 28. Kf2 f6 29. Kf3 Kf7 30. Rc2 g5 31. Nf2 Nf5 32. e3 hxg3 33. hxg3 g4+ 34. Ke2 Nxg3+ 35. Ke1 Rb4 36. Rb2 f5 37. a3 Rb5 38. Nd3 Ne4 39. a4 Rd5 40. Nf4 Rd6 41. Rh2 Kg7 42. Rh5 Rh6 43. Rxh6 Kxh6 44. Ne6 Kg6 45. Nd8 Nd6 46. Ne6 Kf6 47. Nf4 Ke5 48. Ke2 Ne4 49. Nd3+ Kd6 50. Nc1 a5 51. Kd3 Kd5 52. Ne2 Nc5+ 53. Kc3 Ke4 54. Ng3+ Kxe3 55. Nxf5+ Kf4 56. Nh4 g3 57. Kc4 b6 0-1

[Event "Kowalewo Pomorskie op-A"]
[Site "Kowalewo Pomorskie"]
[Date "2007.07.04"]
[Round "1"]
[White "Ziolkowski, Dawid"]
[Black "Siwon, Bogdan"]
[Result "1-0"]
[ECO "B01"]
[WhiteElo "2245"]
[BlackElo "2021"]
[PlyCount "75"]
[EventDate "2007.07.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 119 Extra"]
[Source "ChessBase"]
[SourceDate "2007.09.04"]
[SourceVersion "1"]
[SourceVersionDate "2007.09.04"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd6 4. d4 Nf6 5. Bc4 a6 6. Nge2 b5 7. Bb3 Bb7 8. Bf4 Qd8 9. 0-0 e6 10. d5 exd5 11. Nd4 Be7 12. Nf5 0-0 13. Nxd5 Bxd5 14. Bxd5 Nxd5 15. Qxd5 c6 16. Qxd8 Bxd8 17. Bd6 Bf6 18. Bxf8 Kxf8 19. Rad1 g6 20. Rd6 Nd7 21. Rxd7 gxf5 22. Rd6 Bxb2 23. Rxc6 b4 24. Rd1 a5 25. g3 a4 26. Rc7 Be5 27. Rb7 Rc8 28. Rd5 Bf6 29. Rdd7 Kg7 30. Rxf7+ Kg6 31. Rfc7 Rxc7 32. Rxc7 Bd4 33. Rc4 Bc3 34. a3 Bd2 35. axb4 a3 36. b5 f4 37. Ra4 fxg3 38. hxg3 1-0

[Event "Kowalewo Pomorskie op"]
[Site "Kowalewo Pomorskie"]
[Date "2006.07.??"]
[Round "2"]
[White "Kosiorek, Marek"]
[Black "Siwon, Bogdan"]
[Result "1-0"]
[ECO "B01"]
[WhiteElo "2378"]
[BlackElo "2052"]
[PlyCount "33"]
[EventDate "2006.07.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 113 Extra"]
[Source "ChessBase"]
[SourceDate "2006.09.14"]
[SourceVersion "1"]
[SourceVersionDate "2006.09.14"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd6 4. d4 Nf6 5. Nge2 a6 6. Bf4 Qd8 7. g3 Nd5 8. Bg2 Nxf4 9. Nxf4 Nc6 10. d5 Ne5 11. Qd4 Ng4 12. 0-0-0 Qd6 13. Rhe1 Qf6 14. Qc4 Qb6 15. d6 c6 16. Nfd5 cxd5 17. Nxd5 1-0

