[Event "Karpacz op"]
[Site "Karpacz"]
[Date "2013.07.30"]
[Round "9"]
[White "Siwon, Zbigniew"]
[Black "Dybowski, Artur"]
[Result "1-0"]
[ECO "D71"]
[WhiteElo "1788"]
[BlackElo "1627"]
[PlyCount "31"]
[EventDate "2013.07.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. g3 Nxc3 6. bxc3 Bg7 7. Bg2 c5 8. e3 0-0 9. Ne2 Nc6 10. 0-0 Qa5 11. Qb3 Qa6 12. Nf4 cxd4 13. cxd4 Na5 14. Qa4 e6 15. Bd2 Rb8 16. Qxa5 1-0

[Event "Karpacz op"]
[Site "Karpacz"]
[Date "2013.07.28"]
[Round "7"]
[White "Jankowiak, Piotr"]
[Black "Siwon, Zbigniew"]
[Result "1/2-1/2"]
[ECO "B38"]
[WhiteElo "1547"]
[BlackElo "1788"]
[PlyCount "63"]
[EventDate "2013.07.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. c4 Bg7 6. Be3 d6 7. Nc3 Nf6 8. Be2 0-0 9. 0-0 Nxd4 10. Bxd4 a5 11. b3 Nd7 12. a3 Nc5 13. Bxg7 Kxg7 14. b4 axb4 15. axb4 Rxa1 16. Qxa1 Na6 17. Qb2 Kg8 18. Rd1 Be6 19. c5 Qb8 20. cxd6 exd6 21. Nd5 Bxd5 22. Rxd5 Qc7 23. Qd2 Rc8 24. Bxa6 bxa6 25. h3 Qc1+ 26. Qxc1 Rxc1+ 27. Kh2 Rc6 28. b5 axb5 29. Rxb5 Rc4 30. Rd5 Rxe4 31. Rxd6 Kg7 32. Ra6 1/2-1/2

[Event "Karpacz op"]
[Site "Karpacz"]
[Date "2013.07.27"]
[Round "6"]
[White "Jankowiak, Tomasz"]
[Black "Siwon, Zbigniew"]
[Result "1/2-1/2"]
[ECO "B45"]
[WhiteElo "1546"]
[BlackElo "1788"]
[PlyCount "92"]
[EventDate "2013.07.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. Ndb5 Bb4 7. a3 Bxc3+ 8. Nxc3 d5 9. exd5 Nxd5 10. Nxd5 Qxd5 11. Qxd5 exd5 12. Bf4 Bf5 13. 0-0-0 0-0-0 14. Bd3 Be6 15. Bb5 h6 16. Bxc6 bxc6 17. Be3 Rd7 18. Bd4 Rg8 19. Bc5 Rb7 20. a4 Kd7 21. Rhe1 g5 22. b3 h5 23. Kd2 a6 24. Re5 Rbb8 25. Rde1 Rbe8 26. Kc3 Rg6 27. Kb4 Kc7 28. h4 gxh4 29. Rxh5 Rxg2 30. Rxh4 Reg8 31. Rh7 R2g7 32. Rxg7 Rxg7 33. Kc3 Rg4 34. Rd1 Bf5 35. a5 Re4 36. Rd2 Re1 37. b4 Be4 38. Rd4 Kd7 39. Rd2 Ke6 40. Rd4 Kf5 41. Rd2 Kf4 42. Be3+ Ke5 43. Bd4+ Kf5 44. Bc5 Kg4 45. Ba7 Bf3 46. Rd4+ Be4 1/2-1/2

[Event "Karpacz op"]
[Site "Karpacz"]
[Date "2013.07.26"]
[Round "5"]
[White "Siwon, Zbigniew"]
[Black "Grzeskow, Adrian"]
[Result "0-1"]
[ECO "D94"]
[WhiteElo "1788"]
[BlackElo "1930"]
[PlyCount "98"]
[EventDate "2013.07.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. e3 g6 4. Nc3 cxd4 5. exd4 d5 6. Nf3 Bg7 7. Be2 0-0 8. 0-0 Nc6 9. h3 a6 10. a3 dxc4 11. Bxc4 b5 12. Be2 Qd6 13. Be3 Rd8 14. Qd2 Bb7 15. Rfd1 Na5 16. Bf4 Qb6 17. Qe3 Rac8 18. b4 Nc4 19. Qc1 Nd5 20. Nxd5 Bxd5 21. Ra2 Ne3 22. Qxe3 Bxa2 23. Ne5 f6 24. Nf3 e5 25. dxe5 Rxd1+ 26. Bxd1 Qxe3 27. Bxe3 fxe5 28. Kf1 Rc3 29. a4 bxa4 30. Bxa4 Bc4+ 31. Ke1 e4 32. Nd4 Rd3 33. Bc2 Rxd4 34. Bxd4 Bxd4 35. Bxe4 Bc3+ 36. Kd1 Bxb4 37. Kc2 a5 38. Bc6 Kf7 39. f4 Ke6 40. g4 Kd6 41. Be8 Ke7 42. Bc6 Bf1 43. h4 Be2 44. f5 Bxg4 45. fxg6 hxg6 46. Kd3 Be1 47. Be4 Bf5 48. Bxf5 gxf5 49. h5 Kf6 0-1

[Event "Karpacz op"]
[Site "Karpacz"]
[Date "2013.07.25"]
[Round "4"]
[White "Paluch, Andrzej"]
[Black "Siwon, Zbigniew"]
[Result "0-1"]
[ECO "A37"]
[WhiteElo "1548"]
[BlackElo "1788"]
[PlyCount "84"]
[EventDate "2013.07.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. c4 c5 2. g3 Nc6 3. Bg2 g6 4. Nf3 Bg7 5. 0-0 e6 6. Nc3 Nge7 7. e3 0-0 8. d4 cxd4 9. exd4 d5 10. cxd5 Nxd5 11. Be3 Nce7 12. Qb3 b6 13. Rfd1 Bb7 14. a4 Nf5 15. Nxd5 Bxd5 16. Qd3 Qe7 17. g4 Nd6 18. Bf4 Nc4 19. b3 Nb2 20. Qd2 Nxd1 21. Qxd1 Qb4 22. Rb1 Rad8 23. Bd2 Qd6 24. Qe1 Rfe8 25. Bb4 Qf4 26. Qe3 Qxg4 27. h3 Qe4 28. Re1 Qxe3 29. fxe3 Bxb3 30. Ra1 e5 31. Nd2 Be6 32. Bc6 Bd7 33. d5 Bxc6 34. dxc6 Rc8 35. Rc1 Bf8 36. Bxf8 Kxf8 37. Ne4 Re6 38. Ng5 Rexc6 39. Rf1 f6 40. Ne4 Ke7 41. Rd1 Rd8 42. Rb1 Rc4 0-1

[Event "Karpacz op"]
[Site "Karpacz"]
[Date "2013.07.23"]
[Round "2"]
[White "Siembab, Bartosz"]
[Black "Siwon, Zbigniew"]
[Result "1-0"]
[ECO "D15"]
[WhiteElo "2258"]
[BlackElo "1788"]
[PlyCount "55"]
[EventDate "2013.07.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Nf3 h6 5. Ne5 e6 6. Bf4 Qa5 7. Bd2 Qc7 8. Rc1 a6 9. e3 Bd6 10. f4 0-0 11. Bd3 dxc4 12. Nxc4 Nbd7 13. Qf3 c5 14. Ne4 Nxe4 15. Bxe4 cxd4 16. exd4 Ra7 17. 0-0 Nf6 18. Ba5 Qe7 19. Bb6 Ra8 20. Nxd6 Qxd6 21. Bc5 Qd7 22. Bxf8 Kxf8 23. Rfd1 Nxe4 24. Qxe4 f5 25. Qe5 Qd8 26. Rc7 Qf6 27. Qxf6+ gxf6 28. Rdc1 1-0

[Event "Karpacz op"]
[Site "Karpacz"]
[Date "2013.07.22"]
[Round "1"]
[White "Siwon, Zbigniew"]
[Black "Pisarski, Stanislaw"]
[Result "1-0"]
[ECO "D13"]
[WhiteElo "1788"]
[PlyCount "71"]
[EventDate "2013.07.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. cxd5 cxd5 4. Nc3 Nf6 5. Bf4 e6 6. e3 Nc6 7. Nf3 a6 8. Rc1 Bb4 9. Bd3 0-0 10. 0-0 b5 11. a3 Ba5 12. Nxb5 Bb7 13. Nd6 Qd7 14. Qa4 Bc7 15. Nxb7 Bxf4 16. Qxc6 Bh6 17. Ne5 Qxc6 18. Nxc6 Nd7 19. Ne7+ Kh8 20. Rc7 Nf6 21. b4 Bg5 22. Nc5 Rfd8 23. Nc6 Rf8 24. Nxa6 Ne8 25. Rb7 f5 26. Ne5 Bf6 27. Rc1 Nd6 28. Rd7 Bxe5 29. dxe5 Nc4 30. Bxc4 dxc4 31. b5 Rac8 32. Rd6 c3 33. b6 Rf7 34. Nc7 h6 35. Rxc3 Rb8 36. g3 1-0

[Event "Kochan Memorial op 23rd"]
[Site "Koszalin"]
[Date "2012.08.17"]
[Round "8"]
[White "Pijewski, Milosz"]
[Black "Siwon, Zbigniew"]
[Result "0-1"]
[ECO "D45"]
[WhiteElo "1511"]
[BlackElo "1792"]
[PlyCount "104"]
[EventDate "2012.08.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 149 Extra"]
[Source "ChessBase"]
[SourceDate "2012.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2012.08.24"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 a6 6. Bd2 Be7 7. Bd3 dxc4 8. Bxc4 b5 9. Bb3 Nbd7 10. 0-0 0-0 11. a4 b4 12. Ne2 a5 13. Bc4 Bb7 14. Nf4 Nd5 15. e4 Nxf4 16. Bxf4 Nb6 17. Bd3 c5 18. dxc5 Bxc5 19. Rc1 Rc8 20. b3 Qe7 21. Qe2 Rfd8 22. Rc2 f6 23. Rfc1 e5 24. Be3 Bxe3 25. Qxe3 Qd6 26. Rxc8 Rxc8 27. Rxc8+ Bxc8 28. Nd2 Be6 29. Bb5 Nd7 30. Bxd7 Qxd7 31. Kf1 Qc7 32. Ke2 h6 33. Qd3 g6 34. Qb5 Kg7 35. f3 h5 36. h3 g5 37. g4 hxg4 38. hxg4 Kg6 39. Qd3 Bc8 40. Qc4 Qxc4+ 41. bxc4 Bd7 42. Nb3 Bxa4 43. Nxa5 b3 44. Nxb3 Bxb3 45. c5 Kf7 46. Kd3 Ke7 47. Kc3 Bd1 48. Kb4 Kd7 49. f4 gxf4 50. g5 fxg5 51. Ka5 Kc6 52. Kb4 f3 0-1

[Event "Kochan Memorial op 23rd"]
[Site "Koszalin"]
[Date "2012.08.16"]
[Round "7"]
[White "Osinski, Emil"]
[Black "Siwon, Zbigniew"]
[Result "1-0"]
[ECO "B18"]
[WhiteElo "1839"]
[BlackElo "1792"]
[PlyCount "101"]
[EventDate "2012.08.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 149 Extra"]
[Source "ChessBase"]
[SourceDate "2012.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2012.08.24"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. Nh3 h6 7. Nf4 Bh7 8. Bc4 Nd7 9. Qh5 g6 10. Qf3 Ngf6 11. Qb3 e6 12. Qxb7 Qc8 13. Ba6 Qxb7 14. Bxb7 Rb8 15. Bxc6 Bg7 16. c3 0-0 17. 0-0 e5 18. Nfe2 exd4 19. Nxd4 Nb6 20. Bf4 Rbc8 21. Rac1 Nfd5 22. Bxd5 Nxd5 23. Bd6 Rfd8 24. Ba3 Bxd4 25. cxd4 g5 26. Rxc8 Rxc8 27. Bc5 a5 28. f3 Nf4 29. Ne4 Nd3 30. Nf6+ Kg7 31. Nxh7 Kxh7 32. Rb1 Kg7 33. Kf1 Kf6 34. b3 Ke6 35. Rd1 Nxc5 36. Rc1 Kd5 37. Rxc5+ Rxc5 38. dxc5 Kxc5 39. a3 Kd4 40. Ke2 Kc3 41. b4 axb4 42. axb4 Kxb4 43. Ke3 Kc3 44. g4 Kc2 45. f4 f6 46. fxg5 fxg5 47. Ke4 Kd2 48. Kf5 Ke3 49. Kg6 Kf4 50. h3 Kg3 51. Kxh6 1-0

[Event "Kochan Memorial op 23rd"]
[Site "Koszalin"]
[Date "2012.08.15"]
[Round "5"]
[White "Borkowski, Helmut"]
[Black "Siwon, Zbigniew"]
[Result "0-1"]
[ECO "B50"]
[WhiteElo "1497"]
[BlackElo "1792"]
[PlyCount "104"]
[EventDate "2012.08.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 149 Extra"]
[Source "ChessBase"]
[SourceDate "2012.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2012.08.24"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Nc3 d6 4. Bc4 Nf6 5. Qe2 g6 6. d3 Bg7 7. Be3 Bd7 8. Ng5 0-0 9. 0-0 h6 10. Nf3 Na5 11. a3 Nxc4 12. dxc4 Ng4 13. Bd2 Kh7 14. h3 Ne5 15. Rad1 f5 16. b3 Nxf3+ 17. Qxf3 Bc6 18. Qe2 f4 19. f3 Bd4+ 20. Kh1 e6 21. Qe1 Qe7 22. Ne2 g5 23. c3 Be5 24. Nc1 Kg7 25. Nd3 Qf6 26. Nf2 h5 27. Nd3 Rh8 28. Kg1 Kf7 29. b4 b6 30. b5 Bb7 31. a4 Ke7 32. Rb1 Qg7 33. Kf2 g4 34. Nxe5 Qxe5 35. Ke2 gxh3 36. Qh4+ Kd7 37. Qxh3 Rag8 38. Be1 Bxe4 39. fxe4 Qxe4+ 40. Kd2 Qxb1 41. Rxf4 Rxg2+ 42. Bf2 Qb2+ 43. Ke1 Qc1+ 44. Ke2 Qxf4 45. Qxg2 Qg4+ 46. Qf3 Qxf3+ 47. Kxf3 Rf8+ 48. Kg2 Rxf2+ 49. Kxf2 e5 50. Kf3 Ke6 51. Ke4 h4 52. Kf3 Kf5 0-1

[Event "Kochan Memorial op 23rd"]
[Site "Koszalin"]
[Date "2012.08.14"]
[Round "4"]
[White "Siwon, Zbigniew"]
[Black "Belczewski, Jacek"]
[Result "1/2-1/2"]
[ECO "D35"]
[WhiteElo "1792"]
[BlackElo "1498"]
[PlyCount "100"]
[EventDate "2012.08.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 149 Extra"]
[Source "ChessBase"]
[SourceDate "2012.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2012.08.24"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Nbd7 5. e3 c6 6. cxd5 exd5 7. Bd3 Qa5 8. Nge2 Bd6 9. 0-0 0-0 10. Qc2 h6 11. Bh4 Qc7 12. Bg3 Bxg3 13. Nxg3 Nb6 14. b4 Qe7 15. Rab1 Bd7 16. a4 Rfe8 17. a5 Nc8 18. Na4 a6 19. Qc5 Nd6 20. Nb6 Rad8 21. Qc2 Nde4 22. Na4 Bc8 23. Nc5 Kh8 24. Ngxe4 Nxe4 25. Rfe1 Nd6 26. Qe2 Qf6 27. Rec1 Re7 28. Nxa6 bxa6 29. Rxc6 Bb7 30. Rb6 Rc7 31. Bxa6 Rdc8 32. h3 Bxa6 33. Rxa6 Qf5 34. Rf1 Ne4 35. Qg4 Qxg4 36. hxg4 Rb7 37. Rb1 Rcb8 38. f3 Nf6 39. Kf2 Rxb4 40. Rxb4 Rxb4 41. Ra8+ Kh7 42. a6 Ra4 43. Kg3 Ng8 44. Kf4 Ne7 45. Ke5 Nc6+ 46. Kd6 Nb4 47. a7 Ra6+ 48. Kc5 Nc6 49. Kxd5 Nxa7 50. e4 Ra5+ 1/2-1/2

[Event "Kochan Memorial op 23rd"]
[Site "Koszalin"]
[Date "2012.08.13"]
[Round "3"]
[White "Darowicki, Mariusz"]
[Black "Siwon, Zbigniew"]
[Result "1-0"]
[ECO "B38"]
[WhiteElo "1856"]
[BlackElo "1792"]
[PlyCount "91"]
[EventDate "2012.08.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 149 Extra"]
[Source "ChessBase"]
[SourceDate "2012.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2012.08.24"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. c4 Bg7 6. Be3 d6 7. Nc3 Nf6 8. Be2 0-0 9. 0-0 Bd7 10. Rc1 Qc8 11. f3 b6 12. Nd5 Qd8 13. Nxc6 Bxc6 14. Qd2 Nd7 15. Bg5 Bxd5 16. exd5 Bf6 17. Bxf6 Nxf6 18. f4 Qc7 19. Bd3 Qc5+ 20. Kh1 Rae8 21. f5 Kg7 22. Rf3 Rh8 23. Rh3 Ng4 24. Rf1 h5 25. Rg3 Rh6 26. Qf4 Ne5 27. f6+ exf6 28. Qxf6+ Kh7 29. b3 Rf8 30. Be2 Qc7 31. b4 Qd8 32. Qf4 f5 33. c5 Rf7 34. c6 Kg7 35. Rc1 Rh8 36. a4 Ng4 37. Bxg4 fxg4 38. Qd4+ Kh7 39. Re3 Rhf8 40. Ree1 Rf4 41. Qe3 R8f7 42. c7 Qc8 43. Qe6 Qa6 44. Qxf7+ Rxf7 45. c8Q Qxa4 46. Rc7 1-0

[Event "Kochan Memorial op 23rd"]
[Site "Koszalin"]
[Date "2012.08.12"]
[Round "2"]
[White "Siwon, Zbigniew"]
[Black "Bartoszewicz, Marcin"]
[Result "1/2-1/2"]
[ECO "E77"]
[WhiteElo "1792"]
[BlackElo "1908"]
[PlyCount "149"]
[EventDate "2012.08.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 149 Extra"]
[Source "ChessBase"]
[SourceDate "2012.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2012.08.24"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 0-0 6. Nf3 c5 7. d5 e6 8. Be2 exd5 9. exd5 Na6 10. 0-0 Nc7 11. Bd3 h6 12. h4 Nh5 13. Kh2 Bg4 14. g3 f5 15. Bd2 Nf6 16. Qb3 Nh7 17. Rae1 Rb8 18. Nb5 a6 19. Nxc7 Qxc7 20. a4 Rfe8 21. Kg2 Nf6 22. Nh2 Bh5 23. Bc3 Qd7 24. Qc2 Qf7 25. a5 Rxe1 26. Rxe1 Re8 27. Rxe8+ Qxe8 28. Bxf6 Bxf6 29. Qd2 Bd4 30. Nf3 Qe3 31. Qxe3 Bxe3 32. Bc2 Kf7 33. Ba4 Ke7 34. Bc2 Bc1 35. b3 Ba3 36. Kf2 Bb4 37. Ke3 Bxa5 38. Bd3 Bc3 39. Kf2 Kd7 40. Bc2 Kc7 41. Nh2 Kb6 42. g4 fxg4 43. Nf1 Ka5 44. Ng3 Kb4 45. Ne4 Bd4+ 46. Kg3 b5 47. cxb5 axb5 48. Nxd6 Kc3 49. Bd1 Kd2 50. Nxb5 g5 51. Bxg4 gxf4+ 52. Kxf4 Be3+ 53. Kf5 Be8 54. Nd6 Bd7+ 55. Ke4 Bxg4 56. Nc4+ Kc3 57. Nxe3 Bd7 58. Ke5 Kxb3 59. Kd6 Bh3 60. Kxc5 Kc3 61. Nc4 Kd3 62. Ne5+ Ke3 63. Nf7 h5 64. Ng5 Bg4 65. d6 Kf4 66. Kd5 Bd7 67. Nh7 Kf5 68. Nf8 Ba4 69. Kc5 Be8 70. Kb6 Kg4 71. Ng6 Kf5 72. Ne7+ Kg4 73. Kc7 Kxh4 74. Kd8 Ba4 75. Kc7 1/2-1/2

[Event "Ostroda op 8th"]
[Site "Ostroda"]
[Date "2011.08.08"]
[Round "6"]
[White "Zielinski, Maciej"]
[Black "Siwon, Zbigniew"]
[Result "1/2-1/2"]
[ECO "B45"]
[WhiteElo "2060"]
[BlackElo "1821"]
[PlyCount "84"]
[EventDate "2011.08.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 143 Extra"]
[Source "ChessBase"]
[SourceDate "2011.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2011.08.29"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. Ndb5 Bb4 7. a3 Bxc3+ 8. Nxc3 d5 9. exd5 exd5 10. Bd3 0-0 11. 0-0 h6 12. Re1 Be6 13. Bf4 a6 14. Bg3 Qb6 15. Qd2 Rfe8 16. Na4 Qd4 17. Qf4 Qxf4 18. Bxf4 Nd7 19. Rad1 g5 20. Bg3 Kg7 21. h3 f6 22. Rxe6 Rxe6 23. Bf5 Re7 24. Bd6 Rf7 25. Be6 d4 26. Kf1 b5 27. Bxf7 Kxf7 28. Nc5 Nxc5 29. Bxc5 Rd8 30. Ke2 Ke6 31. Kd2 Kd5 32. Bb6 Rb8 33. Bc7 Rb7 34. Bg3 Ne5 35. c3 dxc3+ 36. Kxc3+ Ke6 37. Bxe5 Kxe5 38. Rd8 Rb6 39. Rh8 f5 40. Re8+ Kd5 41. Rd8+ Ke5 42. Re8+ Kd5 1/2-1/2

[Event "Ostroda op 8th"]
[Site "Ostroda"]
[Date "2011.08.06"]
[Round "4"]
[White "Siwon, Zbigniew"]
[Black "Tvarijonas, Tomas"]
[Result "0-1"]
[ECO "D10"]
[WhiteElo "1821"]
[BlackElo "1992"]
[PlyCount "104"]
[EventDate "2011.08.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 143 Extra"]
[Source "ChessBase"]
[SourceDate "2011.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2011.08.29"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. cxd5 cxd5 4. Nc3 Nf6 5. Bf4 Nc6 6. e3 Qa5 7. Bd3 e6 8. Nge2 Be7 9. 0-0 Nh5 10. Rc1 Nxf4 11. Nxf4 g6 12. a3 0-0 13. g3 Rd8 14. h4 a6 15. Be2 Qc7 16. Nd3 Bd6 17. f4 Qe7 18. Bf3 Na5 19. Qe2 Nb3 20. Rc2 Bd7 21. Ne5 Be8 22. Qg2 Rac8 23. Bd1 Na5 24. h5 Bxe5 25. fxe5 Nc4 26. Qf2 Qg5 27. hxg6 hxg6 28. Re2 Nxb2 29. Rxb2 Rxc3 30. Rxb7 Rxe3 31. g4 Rxa3 32. Rxf7 Bxf7 33. Qxf7+ Kh8 34. Rf2 Rh3 35. Qf6+ Qxf6 36. exf6 Rd3 37. Be2 Rxd4 38. Rh2+ Kg8 39. Rh6 g5 40. Rg6+ Kf7 41. Rxg5 Kxf6 42. Rh5 a5 43. Kf2 a4 44. Rh6+ Ke5 45. g5 a3 46. g6 a2 47. Rh1 Rg8 48. Ra1 Ra4 49. Bh5 Ra3 50. Kg2 d4 51. Re1+ Kd6 52. Bg4 Rxg6 0-1

[Event "Ketrzyn op-B 12th"]
[Site "Ketrzyn"]
[Date "2009.12.30"]
[Round "9"]
[White "Siwon, Zbigniew"]
[Black "Szymanowski, Mateusz"]
[Result "1-0"]
[ECO "E76"]
[WhiteElo "1852"]
[BlackElo "1656"]
[PlyCount "67"]
[EventDate "2009.12.27"]
[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. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 0-0 6. Nf3 Bg4 7. Bd3 Nc6 8. Be3 e5 9. fxe5 dxe5 10. d5 Ne7 11. 0-0 Nd7 12. Qd2 f5 13. h3 Bxf3 14. Rxf3 f4 15. Bf2 g5 16. Be2 h5 17. Rd3 Nf6 18. d6 cxd6 19. Rxd6 Qc7 20. Rd1 a6 21. Bb6 Qc8 22. Qc2 g4 23. hxg4 hxg4 24. Rd8 Qc6 25. R1d6 Rfxd8 26. Rxc6 Nxc6 27. Bxd8 Rxd8 28. Nd5 Nd4 29. Qd3 g3 30. Bf3 Nd7 31. b4 Nf8 32. Kf1 Nc6 33. Bg4 Kf7 34. Bh5+ 1-0

[Event "Ketrzyn op-B 12th"]
[Site "Ketrzyn"]
[Date "2009.12.29"]
[Round "7"]
[White "Siwon, Zbigniew"]
[Black "Szymanowski, Igor"]
[Result "1-0"]
[ECO "A83"]
[WhiteElo "1852"]
[BlackElo "1348"]
[PlyCount "85"]
[EventDate "2009.12.27"]
[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 f5 2. e4 fxe4 3. Nc3 Nf6 4. Bg5 d5 5. Bxf6 exf6 6. Qh5+ g6 7. Qxd5 Bb4 8. Qxe4+ Kf7 9. Bc4+ Kg7 10. 0-0-0 Bxc3 11. bxc3 Re8 12. Qf4 Qd7 13. Bb3 Qc6 14. Qf3 Re4 15. d5 Qe8 16. Qg3 c6 17. Nf3 Rg4 18. Qc7+ Qd7 19. d6 Qxc7 20. dxc7 Na6 21. Rhe1 Rxg2 22. Re7+ Kh6 23. Bg8 Kh5 24. Rd4 g5 25. Rxh7+ Kg6 26. Rd8 Nc5 27. Nd4 Na4 28. Re7 c5 29. Nb5 Bg4 30. Bf7+ Kh6 31. Re1 Nb6 32. Be6 Bxe6 33. Rxe6 Nc4 34. Kd1 Rxf2 35. Rxa8 Rd2+ 36. Ke1 Rxc2 37. c8Q Rxh2 38. Rxf6+ Kh5 39. Qh8+ Kg4 40. Qxh2 Ne3 41. Qg1+ Ng2+ 42. Qxg2+ Kh4 43. Rh8# 1-0

[Event "Ketrzyn op-B 12th"]
[Site "Ketrzyn"]
[Date "2009.12.27"]
[Round "2"]
[White "Ignatovic, Ernest"]
[Black "Siwon, Zbigniew"]
[Result "0-1"]
[ECO "B70"]
[BlackElo "1852"]
[PlyCount "31"]
[EventDate "2009.12.27"]
[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 c5 2. Nf3 Nc6 3. Nc3 Nf6 4. g3 d6 5. Bg2 g6 6. 0-0 Bg7 7. d4 cxd4 8. Nxd4 0-0 9. Re1 Qb6 10. Nb3 Ng4 11. Be3 Nxe3 12. Rxe3 Be6 13. Rb1 a5 14. Nd5 Bxd5 15. exd5 Ne5 16. Qe2 0-1

[Event "Ketrzyn op-B 12th"]
[Site "Ketrzyn"]
[Date "2009.12.27"]
[Round "1"]
[White "Siwon, Zbigniew"]
[Black "Matuszewicz, Ryszard"]
[Result "1/2-1/2"]
[ECO "D20"]
[WhiteElo "1852"]
[PlyCount "43"]
[EventDate "2009.12.27"]
[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 Nf6 3. Nc3 dxc4 4. e4 e5 5. Be3 exd4 6. Bxd4 c5 7. Bxf6 Qxf6 8. Nf3 Be7 9. Bxc4 0-0 10. 0-0 Nc6 11. Re1 Bg4 12. Be2 Rad8 13. Qa4 a6 14. Nd5 Qe6 15. Nf4 Qc8 16. Nd5 Bd7 17. Nb6 Qb8 18. Nxd7 Rxd7 19. Bxa6 Qa8 20. Bb5 Rc7 21. Bxc6 Rxc6 22. Qb5 1/2-1/2

[Event "Chojnice op-B"]
[Site "Chojnice"]
[Date "2009.07.17"]
[Round "9"]
[White "Siwon, Zbigniew"]
[Black "Bartoszek, Michal"]
[Result "1-0"]
[ECO "D36"]
[WhiteElo "1866"]
[BlackElo "1615"]
[PlyCount "101"]
[EventDate "2009.07.11"]
[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. Nc3 Nf6 4. Bg5 Nbd7 5. cxd5 exd5 6. e3 c6 7. Bd3 Be7 8. Nge2 0-0 9. 0-0 Re8 10. Qc2 Nf8 11. Rfb1 Ne4 12. Bxe7 Qxe7 13. b4 f5 14. Bxe4 fxe4 15. b5 Bg4 16. h3 Bf5 17. Qb3 g5 18. Ng3 Bg6 19. Na4 Ne6 20. bxc6 bxc6 21. Qb7 Qd6 22. Rc1 Rec8 23. Nc5 Nxc5 24. Rxc5 Qc7 25. Qxc7 Rxc7 26. Rac1 Rac8 27. Ne2 Bf7 28. Nc3 a6 29. f3 exf3 30. gxf3 h6 31. Kf2 Kf8 32. e4 Ke8 33. Nxd5 Bxd5 34. exd5 Kd7 35. dxc6+ Rxc6 36. Rxc6 Rxc6 37. Rxc6 Kxc6 38. Ke3 Kd5 39. Kd3 a5 40. Kc3 a4 41. Kd3 a3 42. Kc3 h5 43. Kd3 h4 44. Kc3 Ke6 45. Kc4 Kf5 46. d5 Kf4 47. d6 Kxf3 48. d7 g4 49. hxg4 Kxg4 50. d8Q Kg3 51. Qg5+ 1-0

[Event "Chojnice op-B"]
[Site "Chojnice"]
[Date "2009.07.16"]
[Round "8"]
[White "Kaczanowski, Pawel"]
[Black "Siwon, Zbigniew"]
[Result "0-1"]
[ECO "A00"]
[BlackElo "1866"]
[PlyCount "34"]
[EventDate "2009.07.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "EXT 2011"]
[Source "ChessBase"]
[SourceDate "2010.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.26"]
[SourceQuality "1"]

1. g3 d5 2. Bg2 e5 3. c4 d4 4. Qb3 c6 5. Nf3 e4 6. Ng1 f5 7. d3 Nf6 8. Bg5 exd3 9. exd3 Na6 10. a3 Qe7+ 11. Ne2 f4 12. Nd2 Nc5 13. Qc2 Bg4 14. Ne4 f3 15. Bxf3 Bxf3 16. 0-0 Bxe4 17. dxe4 d3 0-1

[Event "Chojnice op-B"]
[Site "Chojnice"]
[Date "2009.07.15"]
[Round "6"]
[White "Lasota, Marcin"]
[Black "Siwon, Zbigniew"]
[Result "1-0"]
[ECO "B21"]
[BlackElo "1866"]
[PlyCount "67"]
[EventDate "2009.07.11"]
[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 c5 2. f4 d5 3. e5 Nc6 4. Nf3 g6 5. c3 Bg7 6. d4 Qb6 7. Be2 Bg4 8. dxc5 Qxc5 9. Nbd2 Bxf3 10. Nxf3 Nh6 11. Qd3 e6 12. Be3 Qa5 13. Nd2 Nf5 14. Nb3 Qc7 15. Bc5 Bf8 16. Bf2 h5 17. 0-0-0 0-0-0 18. Kb1 Be7 19. g3 f6 20. Nd4 Nfxd4 21. cxd4 f5 22. Rc1 Kb8 23. Qb5 a6 24. Qb3 Ka7 25. Rc2 Qa5 26. Rhc1 Rc8 27. Be1 Qb6 28. Qa4 Kb8 29. Bxa6 Qxd4 30. Qb5 Qa7 31. Rxc6 Rxc6 32. Rxc6 Ka8 33. Bf2 bxa6 34. Rxa6 1-0

[Event "Chojnice op-B"]
[Site "Chojnice"]
[Date "2009.07.15"]
[Round "7"]
[White "Siwon, Zbigniew"]
[Black "Szymanowski, Mateusz"]
[Result "1/2-1/2"]
[ECO "B20"]
[WhiteElo "1866"]
[BlackElo "1600"]
[PlyCount "91"]
[EventDate "2009.07.11"]
[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 c5 2. a3 d6 3. b4 cxb4 4. axb4 Nf6 5. Bb5+ Bd7 6. Bxd7+ Nbxd7 7. d3 e6 8. Nf3 Be7 9. 0-0 0-0 10. c4 Qb6 11. b5 d5 12. exd5 exd5 13. Be3 Bc5 14. Bxc5 Qxc5 15. Nbd2 dxc4 16. dxc4 Nb6 17. Qb3 Rac8 18. h3 Nxc4 19. Nxc4 Qxc4 20. Qxc4 Rxc4 21. Rxa7 Rb8 22. Rfa1 Rcc8 23. Ne5 Re8 24. Nc4 Red8 25. Na5 h6 26. Rxb7 Ra8 27. Kh2 Ne4 28. Nc6 Rxa1 29. Nxd8 Rb1 30. Rb8 Nxf2 31. b6 Ne4 32. h4 h5 33. b7 Nd6 34. Kg3 Kh7 35. Kf4 f6 36. Ke3 Rb4 37. g3 Kg6 38. Kf2 Rb6 39. Kg1 Rb3 40. Kg2 Kf5 41. Kf2 Kg4 42. Ne6 Rxb7 43. Rxb7 Nxb7 44. Nxg7 Nc5 45. Ke3 Kxg3 46. Nxh5+ 1/2-1/2

[Event "Chojnice op-B"]
[Site "Chojnice"]
[Date "2009.07.14"]
[Round "5"]
[White "Siwon, Zbigniew"]
[Black "Kaminski, Damian"]
[Result "0-1"]
[ECO "A56"]
[WhiteElo "1866"]
[BlackElo "1805"]
[PlyCount "54"]
[EventDate "2009.07.11"]
[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. c4 c5 3. e3 g6 4. Nc3 cxd4 5. exd4 Bg7 6. f4 0-0 7. Nf3 d6 8. Bd3 Nc6 9. 0-0 Bd7 10. a3 Rc8 11. b4 Ng4 12. Be2 e5 13. h3 exd4 14. hxg4 dxc3 15. Qxd6 Bxg4 16. Qxd8 Rfxd8 17. Be3 Re8 18. Kf2 Rc7 19. Rae1 Rce7 20. Bd1 Bxf3 21. Bxf3 Nd4 22. Bd1 c2 23. Bf3 Nb3 24. c5 Bd4 25. Bxb7 Rxe3 26. Rxe3 Rxe3 27. c6 Re1+ 0-1

[Event "Chojnice op-B"]
[Site "Chojnice"]
[Date "2009.07.13"]
[Round "4"]
[White "Belka, Marta"]
[Black "Siwon, Zbigniew"]
[Result "0-1"]
[ECO "A21"]
[WhiteElo "1672"]
[BlackElo "1866"]
[PlyCount "48"]
[EventDate "2009.07.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "EXT 2011"]
[Source "ChessBase"]
[SourceDate "2010.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.26"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 c6 3. Nf3 Qc7 4. g3 f5 5. d3 Nf6 6. Bg2 Be7 7. 0-0 0-0 8. e4 d6 9. Ne1 Be6 10. f4 fxe4 11. Nxe4 Nxe4 12. Bxe4 d5 13. cxd5 Bxd5 14. Bxd5+ cxd5 15. Ng2 Nc6 16. fxe5 Rxf1+ 17. Qxf1 Qxe5 18. Nf4 g5 19. Ne2 Rf8 20. Qg2 Bc5+ 21. Kh1 Rf2 22. Qh3 Qxe2 23. Bxg5 Qf3+ 24. Kg1 Rf1# 0-1

[Event "Chojnice op-B"]
[Site "Chojnice"]
[Date "2009.07.13"]
[Round "3"]
[White "Siwon, Zbigniew"]
[Black "Wodzynski, Mieszko"]
[Result "1/2-1/2"]
[ECO "A52"]
[WhiteElo "1866"]
[BlackElo "1800"]
[PlyCount "48"]
[EventDate "2009.07.11"]
[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. c4 e5 3. dxe5 Ng4 4. Nf3 Nc6 5. e3 Ngxe5 6. Be2 Nxf3+ 7. Bxf3 Ne5 8. Qe2 Bb4+ 9. Bd2 Qe7 10. Nc3 d6 11. 0-0 Bxc3 12. Bxc3 0-0 13. Rfd1 Qg5 14. Bxe5 dxe5 15. Rd2 c6 16. g3 f5 17. Bg2 f4 18. exf4 exf4 19. Rd4 Bg4 20. Qd2 Rad8 21. Re1 Rxd4 22. Qxd4 fxg3 23. hxg3 Rd8 24. Qe4 Qd2 1/2-1/2

[Event "Chojnice op-B"]
[Site "Chojnice"]
[Date "2009.07.12"]
[Round "2"]
[White "Grabowski, Jan"]
[Black "Siwon, Zbigniew"]
[Result "1/2-1/2"]
[ECO "D02"]
[BlackElo "1866"]
[PlyCount "105"]
[EventDate "2009.07.11"]
[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. Bf4 Nf6 3. Nf3 Bg4 4. e3 e6 5. Be2 Bxf3 6. Bxf3 c5 7. c3 Bd6 8. Bxd6 Qxd6 9. 0-0 0-0 10. Nd2 Nc6 11. Be2 Nd7 12. f4 f5 13. Bb5 a6 14. Bxc6 Qxc6 15. Rf3 b5 16. Rh3 Rf6 17. Nf3 Qb6 18. a3 c4 19. Ne5 Nxe5 20. fxe5 Rf7 21. Qh5 g6 22. Qe2 Rfa7 23. Rb1 a5 24. Rf3 b4 25. Qc2 bxa3 26. bxa3 Qc6 27. Rff1 Rb7 28. Rxb7 Qxb7 29. Rb1 Qc6 30. a4 Ra7 31. Rb5 Kf7 32. Qb2 g5 33. Qa3 Rb7 34. Qc5 Qxc5 35. Rxc5 Rb3 36. Rxa5 Rxc3 37. Rc5 Rxe3 38. a5 Ra3 39. Rc7+ Kg6 40. Re7 Rxa5 41. Rxe6+ Kh5 42. Rd6 Kg4 43. e6 Ra8 44. Rxd5 Re8 45. Re5 Kf4 46. Re1 c3 47. d5 c2 48. Kf2 c1Q 49. Rxc1 Ke5 50. Rd1 h5 51. Kf3 Ra8 52. Ke3 g4 53. g3 1/2-1/2

[Event "Chojnice op-B"]
[Site "Chojnice"]
[Date "2009.07.11"]
[Round "1"]
[White "Siwon, Zbigniew"]
[Black "Zwara, Szymon"]
[Result "1/2-1/2"]
[ECO "E76"]
[WhiteElo "1866"]
[BlackElo "1514"]
[PlyCount "84"]
[EventDate "2009.07.11"]
[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. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 0-0 6. Nf3 Na6 7. a3 c5 8. d5 Nc7 9. Bd3 e6 10. 0-0 a6 11. h3 h5 12. Be3 Re8 13. e5 Nh7 14. exd6 Qxd6 15. Ne4 Qd8 16. d6 Nd5 17. cxd5 exd5 18. Nxc5 Rxe3 19. Bxg6 Qxd6 20. Bxh7+ Kxh7 21. Qc2+ Kg8 22. Ng5 Qe7 23. Na4 Bd4 24. Qh7+ Kf8 25. Kh1 b5 26. Nc3 Bb7 27. Nf3 Bg7 28. Ne5 d4 29. Rae1 Qe6 30. Rxe3 dxe3 31. Qxh5 Ke7 32. Qg4 Bxe5 33. Qxe6+ Kxe6 34. fxe5 Rg8 35. Rf6+ Ke7 36. Rb6 Bxg2+ 37. Kh2 Bf3 38. h4 e2 39. Nxe2 Rg2+ 40. Kh3 Rxe2 41. Kg3 Bd5 42. Rxa6 Rxb2 1/2-1/2

[Event "Chojnice op-B 4th"]
[Site "Chojnice"]
[Date "2008.07.18"]
[Round "9"]
[White "Wlodarski, Michal"]
[Black "Siwon, Zbigniew"]
[Result "1-0"]
[ECO "B25"]
[WhiteElo "1930"]
[BlackElo "1880"]
[PlyCount "57"]
[EventDate "2008.07.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d3 g6 4. g3 Bg7 5. Bg2 d6 6. 0-0 Nf6 7. Nc3 0-0 8. Bg5 h6 9. Bd2 Bd7 10. h3 a6 11. Kh2 b5 12. Nh4 Kh7 13. f4 Rb8 14. Nd5 e6 15. Ne3 Ne8 16. c3 f5 17. Qe1 b4 18. g4 g5 19. fxg5 hxg5 20. exf5 gxh4 21. fxe6 Bxe6 22. Rxf8 Bxf8 23. Bxc6 Bg7 24. Ng2 Be5+ 25. Bf4 Qf6 26. Be4+ Kg7 27. Bxe5 dxe5 28. c4 Nd6 29. Qe3 1-0

[Event "Chojnice op-B 4th"]
[Site "Chojnice"]
[Date "2008.07.17"]
[Round "8"]
[White "Siwon, Zbigniew"]
[Black "Falicki, Kacper"]
[Result "1/2-1/2"]
[ECO "D86"]
[WhiteElo "1880"]
[BlackElo "1672"]
[PlyCount "62"]
[EventDate "2008.07.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 c5 8. Be3 Qa5 9. Qd2 Nc6 10. Ne2 cxd4 11. cxd4 Qd8 12. Rd1 0-0 13. 0-0 Na5 14. Bd3 b6 15. f3 Bb7 16. d5 Qd7 17. Qb4 Be5 18. Rc1 Bd6 19. Qb5 Qd8 20. Rc2 e6 21. dxe6 fxe6 22. Bg5 Be7 23. Bxe7 Qxe7 24. Rfc1 Qd6 25. Rc3 Rad8 26. Qg5 a6 27. e5 Qd7 28. h4 Kh8 29. h5 gxh5 30. Qxh5 Nc6 31. Be4 Rc8 1/2-1/2

[Event "Chojnice op-B 4th"]
[Site "Chojnice"]
[Date "2008.07.16"]
[Round "6"]
[White "Siwon, Zbigniew"]
[Black "Lewandowski, Michal"]
[Result "1/2-1/2"]
[ECO "A56"]
[WhiteElo "1880"]
[BlackElo "1644"]
[PlyCount "64"]
[EventDate "2008.07.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. e3 g6 4. Nc3 Bg7 5. Bd3 0-0 6. Nge2 d6 7. 0-0 Nh5 8. d5 e5 9. f4 f5 10. e4 fxe4 11. Bxe4 Bg4 12. Qc2 Bxe2 13. Nxe2 exf4 14. Nxf4 Bd4+ 15. Kh1 Qh4 16. Qb3 Nd7 17. g3 Qe7 18. Bg2 Ne5 19. Bd2 Ng4 20. Rae1 Qd7 21. Nh3 Rae8 22. Rxf8+ Rxf8 23. Qd1 Bf2 24. Re6 Ne5 25. Bh6 Ng7 26. Bxg7 Kxg7 27. Qe2 Bd4 28. b3 Rf6 29. Nf4 b6 30. Qf1 Qd8 31. Bh3 Qf8 32. Kg2 Bc3 1/2-1/2

[Event "Chojnice op-B 4th"]
[Site "Chojnice"]
[Date "2008.07.16"]
[Round "7"]
[White "Sowa, Martyna"]
[Black "Siwon, Zbigniew"]
[Result "0-1"]
[ECO "B31"]
[WhiteElo "1628"]
[BlackElo "1880"]
[PlyCount "66"]
[EventDate "2008.07.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. 0-0 Bg7 5. c3 d6 6. Re1 Bd7 7. d4 cxd4 8. cxd4 Nf6 9. h3 0-0 10. Nc3 a6 11. Bf1 Rc8 12. Bg5 h6 13. Bf4 Nh5 14. Bh2 Qb6 15. Nd5 Qd8 16. e5 dxe5 17. dxe5 Be6 18. Nc3 Bh8 19. Qc2 Nb4 20. Qa4 Qb6 21. Rad1 Rfd8 22. g4 Ng7 23. Bg2 Nd3 24. Rf1 Qxb2 25. Ne4 Rc4 26. Qa5 b6 27. Qxa6 Rxe4 28. Rxd3 Rf8 29. Nd4 Rxd4 30. Rxd4 Qxd4 31. Rb1 Rc8 32. Rxb6 Rc1+ 33. Bf1 Bc4 0-1

[Event "Chojnice op-B 4th"]
[Site "Chojnice"]
[Date "2008.07.15"]
[Round "5"]
[White "Zimochocki, Roman"]
[Black "Siwon, Zbigniew"]
[Result "1-0"]
[ECO "A47"]
[WhiteElo "1805"]
[BlackElo "1880"]
[PlyCount "101"]
[EventDate "2008.07.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. Bf4 c5 4. e3 Nc6 5. c3 b6 6. Bd3 Bb7 7. 0-0 Be7 8. Nbd2 0-0 9. h3 Nd5 10. Bg3 f5 11. e4 fxe4 12. Nxe4 cxd4 13. Nxd4 Nxd4 14. cxd4 Nf6 15. Nd6 Bc6 16. Rc1 Nd5 17. Qh5 Nf6 18. Qe2 Bd5 19. b3 g6 20. Nb5 Bc6 21. Nc7 Rc8 22. Nxe6 dxe6 23. Qxe6+ Kg7 24. Rxc6 Rxc6 25. Qxc6 Qxd4 26. Qc4 Bc5 27. Qxd4 Bxd4 28. Rc1 Rf7 29. Re1 Nh5 30. Be5+ Bxe5 31. Rxe5 Rd7 32. Bc4 Nf4 33. g3 Nh5 34. Kg2 Nf6 35. a4 Ng8 36. g4 Ne7 37. Kg3 Nc6 38. Rd5 Re7 39. Bb5 Ne5 40. f4 Nf7 41. Rd7 Rxd7 42. Bxd7 h6 43. Be6 Nd6 44. Kf3 Kf6 45. Bc4 h5 46. gxh5 gxh5 47. Bd3 Kf7 48. Ke3 Kg7 49. Kd4 Nf7 50. b4 a5 51. b5 1-0

[Event "Chojnice op-B 4th"]
[Site "Chojnice"]
[Date "2008.07.14"]
[Round "4"]
[White "Siwon, Zbigniew"]
[Black "Reza, Wojciech"]
[Result "1/2-1/2"]
[ECO "E43"]
[WhiteElo "1880"]
[PlyCount "54"]
[EventDate "2008.07.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. e3 Bb4+ 4. Nc3 Bxc3+ 5. bxc3 b6 6. Bd3 Bb7 7. f3 d6 8. Ne2 0-0 9. 0-0 e5 10. d5 Nbd7 11. e4 Nc5 12. Be3 Nxd3 13. Qxd3 Nd7 14. g4 g5 15. Ng3 Bc8 16. Kg2 f6 17. Rh1 Rf7 18. Nf5 Qf8 19. h4 Nc5 20. Bxc5 Bxf5 21. Be3 Bd7 22. hxg5 fxg5 23. Bxg5 Qc8 24. Bh4 Kh8 25. Bg3 Qg8 26. Rh6 Raf8 27. Rah1 Rg7 1/2-1/2

[Event "Chojnice op-B 4th"]
[Site "Chojnice"]
[Date "2008.07.14"]
[Round "3"]
[White "Wolak, Jolanta"]
[Black "Siwon, Zbigniew"]
[Result "1/2-1/2"]
[ECO "B33"]
[BlackElo "1880"]
[PlyCount "111"]
[EventDate "2008.07.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 b5 9. Nd5 Be7 10. Bxf6 Bxf6 11. c3 Ne7 12. Be2 Bb7 13. Nxe7 Qxe7 14. Bd3 0-0 15. 0-0 Bg5 16. Re1 g6 17. Nc2 f5 18. f3 Qc7 19. Kh1 Qc5 20. Qe2 fxe4 21. Bxe4 Bxe4 22. Qxe4 a5 23. Rad1 Rad8 24. Rd5 Qb6 25. Qe2 b4 26. cxb4 axb4 27. Rb5 Qc7 28. Nxb4 Rc8 29. Rd1 Qc4 30. Qxc4+ Rxc4 31. a3 Bd2 32. Nd5 e4 33. fxe4 Rxe4 34. Kg1 Be3+ 35. Nxe3 Rxe3 36. Rbd5 Rb3 37. R1d2 Rfb8 38. Rxd6 Rxb2 39. Rxb2 Rxb2 40. a4 Kf8 41. h3 Ke7 42. Ra6 Ra2 43. Kh2 Ra3 44. h4 Kd7 45. g3 Ke7 46. Kh3 Kf7 47. Kg4 Kg7 48. Kf4 h5 49. g4 hxg4 50. Kxg4 Ra1 51. Ra7+ Kh6 52. Ra8 Rg1+ 53. Kf3 Rf1+ 54. Kg2 Rd1 55. a5 Kh5 56. Rh8+ 1/2-1/2

[Event "Chojnice op-B 4th"]
[Site "Chojnice"]
[Date "2008.07.13"]
[Round "2"]
[White "Siwon, Zbigniew"]
[Black "Wiechowski, Lukasz"]
[Result "1/2-1/2"]
[ECO "E41"]
[WhiteElo "1880"]
[PlyCount "99"]
[EventDate "2008.07.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[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. e3 c5 5. Bd3 d5 6. Nge2 Nc6 7. 0-0 b6 8. cxd5 exd5 9. f3 Bxc3 10. bxc3 0-0 11. dxc5 bxc5 12. Ng3 Qc7 13. e4 Be6 14. f4 Rad8 15. Qc2 c4 16. Be2 Qb6+ 17. Kh1 d4 18. Qa4 d3 19. Bf3 Na5 20. f5 Bd7 21. Qd1 h6 22. Bf4 Bc6 23. Be5 Nd7 24. Bd4 Qc7 25. f6 g6 26. Bg4 Ne5 27. Be3 Kh7 28. Bh3 Bd7 29. Bxd7 Qxd7 30. Qd2 Ng4 31. Bc5 Rfe8 32. h3 Qc7 33. Qf4 Qxc5 34. Qxg4 Rg8 35. Rab1 Qe5 36. h4 Qxc3 37. h5 d2 38. Ne2 Qd3 39. Rfd1 c3 40. Nxc3 Qxc3 41. Qf4 Nc4 42. Qc7 Rdf8 43. hxg6+ Rxg6 44. Rb3 Qc1 45. Rb1 Qc3 46. Rb3 Qe5 47. Qxe5 Nxe5 48. Rxd2 Rd8 49. Rd5 Rxd5 50. exd5 1/2-1/2

[Event "Ostroda op-B 4th"]
[Site "Ostroda"]
[Date "2007.08.12"]
[Round "9"]
[White "Siwon, Zbigniew"]
[Black "Somerski, Wojciech"]
[Result "1/2-1/2"]
[ECO "D53"]
[WhiteElo "1920"]
[BlackElo "1800"]
[PlyCount "71"]
[EventDate "2007.08.06"]
[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 e6 2. c4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e3 b6 6. cxd5 Nxd5 7. Bxe7 Nxe7 8. Bd3 Bb7 9. Nf3 Nd7 10. 0-0 0-0 11. e4 c5 12. Rc1 Rc8 13. Re1 cxd4 14. Nxd4 Nc5 15. Bb1 a6 16. e5 Nd5 17. Ne4 Nxe4 18. Rxc8 Qxc8 19. Bxe4 Qc7 20. Nf3 Rd8 21. Qb3 Qc5 22. Bb1 Nf4 23. Qa4 Nh3+ 24. gxh3 Bxf3 25. Qh4 Rc8 26. Qxh7+ Kf8 27. Qh8+ Ke7 28. Qh4+ Ke8 29. Be4 Qc4 30. Qh8+ Ke7 31. Qh7 Qxe4 32. Qxe4 Bxe4 33. Rxe4 Rc2 34. Rb4 b5 35. a4 Rc5 36. f4 1/2-1/2

[Event "Ostroda op-B 4th"]
[Site "Ostroda"]
[Date "2007.08.11"]
[Round "8"]
[White "Opalinski, Patryk"]
[Black "Siwon, Zbigniew"]
[Result "1-0"]
[ECO "B23"]
[WhiteElo "1703"]
[BlackElo "1920"]
[PlyCount "121"]
[EventDate "2007.08.06"]
[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 c5 2. Nc3 Nc6 3. Bb5 g6 4. Bxc6 bxc6 5. d3 Bg7 6. Nge2 e6 7. 0-0 Ne7 8. f4 0-0 9. Kh1 f5 10. e5 Nd5 11. Qe1 a5 12. Qf2 Qe7 13. Na4 d6 14. exd6 Qxd6 15. Qxc5 Qxc5 16. Nxc5 Rb8 17. d4 Re8 18. Bd2 Ra8 19. Rae1 Bf8 20. Nd3 Ba6 21. Ne5 Bxe2 22. Rxe2 c5 23. dxc5 Bxc5 24. c4 Nf6 25. Be3 Bxe3 26. Rxe3 Ne4 27. Kg1 Red8 28. Nd3 Rd4 29. b3 Rad8 30. Nf2 Nc5 31. Re5 Rc8 32. g3 Rd2 33. Ra1 Kf7 34. Kf1 Nb7 35. Re2 Rcd8 36. Rae1 Nc5 37. Rxd2 Rxd2 38. Re2 Rxe2 39. Kxe2 Ke7 40. Ke3 Kd6 41. Kd4 Na6 42. Nd3 Nc7 43. Nc5 Ne8 44. Nb7+ Kd7 45. Nxa5 Nf6 46. b4 Ng4 47. b5 Nxh2 48. b6 Nf1 49. c5 Nxg3 50. c6+ Kc8 51. Nc4 Ne4 52. Ke5 h5 53. Nd6+ Nxd6 54. Kxd6 h4 55. b7+ Kb8 56. Kd7 h3 57. c7+ Kxb7 58. c8Q+ Kb6 59. Qc6+ Ka5 60. a4 h2 61. Qb5# 1-0

[Event "Ostroda op-B 4th"]
[Site "Ostroda"]
[Date "2007.08.10"]
[Round "7"]
[White "Siwon, Zbigniew"]
[Black "Kiewicz, Krzysztof"]
[Result "1/2-1/2"]
[ECO "E47"]
[WhiteElo "1920"]
[BlackElo "1744"]
[PlyCount "76"]
[EventDate "2007.08.06"]
[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. c4 e6 3. Nc3 Bb4 4. e3 0-0 5. Bd3 c5 6. Nge2 d6 7. 0-0 Nbd7 8. e4 cxd4 9. Nxd4 Bxc3 10. bxc3 e5 11. Nb3 Qc7 12. f4 Nc5 13. Nxc5 Qxc5+ 14. Kh1 Be6 15. Qe2 Rac8 16. a4 Bxc4 17. Ba3 Bxd3 18. Qxd3 Qxc3 19. Qxc3 Rxc3 20. Bxd6 Re8 21. Bxe5 Rc4 22. Bxf6 gxf6 23. Rfe1 Rexe4 24. Rxe4 Rxe4 25. g3 Re2 26. a5 Rb2 27. Ra4 b5 28. axb6 axb6 29. Ra8+ Kg7 30. Rb8 b5 31. f5 b4 32. g4 b3 33. h3 Rb1+ 34. Kg2 b2 35. Rb7 Kf8 36. Kh2 Ke8 37. Rb8+ Ke7 38. Rb6 Ke8 1/2-1/2

[Event "Ostroda op-B 4th"]
[Site "Ostroda"]
[Date "2007.08.08"]
[Round "4"]
[White "Plichta, Kamil"]
[Black "Siwon, Zbigniew"]
[Result "1-0"]
[ECO "E42"]
[WhiteElo "1963"]
[BlackElo "1920"]
[PlyCount "89"]
[EventDate "2007.08.06"]
[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. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Nge2 Nc6 6. a3 Bxc3+ 7. Nxc3 0-0 8. dxc5 a5 9. Be2 Qe7 10. Qd6 Ne8 11. Qxe7 Nxe7 12. Nb5 Nc6 13. Bd2 f5 14. Bc3 Nf6 15. Nd6 Rb8 16. b4 b6 17. b5 Ne7 18. cxb6 Rxb6 19. Rd1 a4 20. Bf3 Ng6 21. Bb4 Rd8 22. Ba5 Rxd6 23. Rxd6 Re8 24. Bc3 e5 25. Ba8 Ne4 26. Bxe4 fxe4 27. Ke2 Nh4 28. Rd5 Nxg2 29. Rxe5 Rxe5 30. Bxe5 Nh4 31. Rd1 Ng6 32. Bg3 Kf7 33. c5 h5 34. Rd4 h4 35. Bf4 Bb7 36. Rxd7+ Ke8 37. Rxb7 Nxf4+ 38. exf4 e3 39. c6 exf2 40. Kxf2 g5 41. Rh7 Kd8 42. b6 g4 43. b7 g3+ 44. Ke2 gxh2 45. b8R# 1-0

[Event "Ostroda op-B 4th"]
[Site "Ostroda"]
[Date "2007.08.07"]
[Round "3"]
[White "Kobus, Sebastian"]
[Black "Siwon, Zbigniew"]
[Result "0-1"]
[ECO "B33"]
[WhiteElo "1706"]
[BlackElo "1920"]
[PlyCount "42"]
[EventDate "2007.08.06"]
[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 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Nb3 Bb4 7. Bd3 Bxc3+ 8. bxc3 d5 9. exd5 Nxd5 10. Ba3 Nde7 11. 0-0 0-0 12. Qh5 f5 13. Bc4+ Kh8 14. Rad1 Qe8 15. Qxe8 Rxe8 16. Rd6 f4 17. f3 Nf5 18. Rd2 Ne3 19. Bf7 Nxf1 20. Re2 Rd8 21. Kxf1 Rd1+ 0-1

[Event "Ostroda op-B 4th"]
[Site "Ostroda"]
[Date "2007.08.07"]
[Round "3"]
[White "Siwon, Zbigniew"]
[Black "Opalinski, Krzysztof"]
[Result "1/2-1/2"]
[ECO "E76"]
[WhiteElo "1920"]
[BlackElo "1899"]
[PlyCount "20"]
[EventDate "2007.08.06"]
[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. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 0-0 6. Nf3 e6 7. Be2 b6 8. 0-0 Bb7 9. d5 Nbd7 10. Qc2 a5 1/2-1/2

[Event "Ostroda op"]
[Site "Ostroda"]
[Date "2006.08.11"]
[Round "7.8"]
[White "Major, Katarzyna"]
[Black "Siwon, Zbigniew"]
[Result "0-1"]
[ECO "A84"]
[BlackElo "1959"]
[PlyCount "64"]
[EventDate "2006.08.07"]
[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. d4 d5 2. c4 e6 3. Nc3 c6 4. Nf3 f5 5. Bf4 Nf6 6. e3 Qa5 7. Nd2 Bb4 8. Qc2 0-0 9. a3 Be7 10. Bd3 Ne4 11. f3 Nxc3 12. bxc3 Nd7 13. 0-0 h6 14. e4 g5 15. Nb3 Qa4 16. Bd2 dxe4 17. Nc5 Qxc2 18. Bxc2 Nxc5 19. dxc5 Bxc5+ 20. Kh1 Rd8 21. Rfd1 f4 22. g3 e5 23. gxf4 exf4 24. h4 Kg7 25. hxg5 hxg5 26. Kg2 Be6 27. Be1 Rh8 28. Rd2 Bh3+ 29. Kh1 Bf1+ 30. Rh2 Rxh2+ 31. Kxh2 Rh8+ 32. Bh4 Rxh4# 0-1

[Event "Ostroda op"]
[Site "Ostroda"]
[Date "2006.08.10"]
[Round "5.4"]
[White "Galka, Kazimierz"]
[Black "Siwon, Zbigniew"]
[Result "0-1"]
[ECO "B73"]
[BlackElo "1959"]
[PlyCount "102"]
[EventDate "2006.08.07"]
[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 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2 Bg7 7. Be3 0-0 8. 0-0 d6 9. h3 a6 10. Qd2 Re8 11. Rad1 Bd7 12. f4 Qc7 13. Bf3 Na5 14. b3 Nc6 15. Kh1 Rac8 16. Nde2 b5 17. a3 Qa5 18. Qc1 b4 19. Na4 bxa3 20. Qxa3 Nb4 21. c3 Nc2 22. Qc1 Nxe3 23. Qxe3 Bxa4 24. Ra1 Nd7 25. Rxa4 Qb5 26. c4 Qc5 27. Qd2 Qb6 28. Nc3 Nc5 29. Ra3 Nxb3 30. Qa2 Nc5 31. Rb1 Qc7 32. f5 Rb8 33. fxg6 hxg6 34. Ne2 Rb6 35. Nf4 e6 36. Nd3 Nxd3 37. Rxd3 Be5 38. Rxb6 Qxb6 39. Ra3 Qb4 40. Re3 Rb8 41. g4 a5 42. Kg2 a4 43. Bd1 a3 44. Rb3 Qe1 45. Rxb8+ Kg7 46. Qxa3 Qd2+ 47. Kf1 Qxd1+ 48. Kg2 Qe2+ 49. Kg1 Bd4+ 50. Kh1 Qf1+ 51. Kh2 Qg1# 0-1

[Event "Ostroda op"]
[Site "Ostroda"]
[Date "2006.08.10"]
[Round "6.2"]
[White "Siwon, Zbigniew"]
[Black "Jadanowski, Pawel"]
[Result "0-1"]
[ECO "E85"]
[WhiteElo "1959"]
[BlackElo "1689"]
[PlyCount "108"]
[EventDate "2006.08.07"]
[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. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 0-0 6. Be3 Nc6 7. Qd2 e5 8. d5 Ne7 9. Nge2 a6 10. Bh6 Rb8 11. h4 b5 12. 0-0-0 bxc4 13. h5 Kh8 14. hxg6 fxg6 15. Bxg7+ Kxg7 16. Qh6+ Kg8 17. g4 Rf7 18. Ng3 Qf8 19. Bxc4 Qxh6+ 20. Rxh6 Bxg4 21. fxg4 Nxg4 22. Rh3 Ne3 23. Bxa6 Nxd1 24. Nxd1 Rf3 25. Ne2 g5 26. Rh5 Ra8 27. Rxg5+ Kf7 28. Bc4 Ra4 29. Bb3 Rxe4 30. Ng3 Rd4 31. Nc3 h6 32. Nce4 Rxb3 33. axb3 hxg5 34. Nxg5+ Kg6 35. N5e4 Nxd5 36. Kc2 Ne3+ 37. Kc3 Nf5 38. Nxf5 Kxf5 39. Ng3+ Kg4 40. Ne2 Re4 41. Kd3 Rxe2 42. Kxe2 Kf4 43. b4 c6 44. b3 Ke4 45. Kd2 d5 46. Ke2 d4 47. Kd2 d3 48. b5 cxb5 49. b4 Kd4 50. Kd1 Kc3 51. Kc1 d2+ 52. Kd1 e4 53. Ke2 Kc2 54. Ke3 d1Q 0-1

[Event "Ostroda op"]
[Site "Ostroda"]
[Date "2006.08.09"]
[Round "4.4"]
[White "Siwon, Zbigniew"]
[Black "Zadlo, Ryszard"]
[Result "1/2-1/2"]
[ECO "D35"]
[WhiteElo "1959"]
[PlyCount "52"]
[EventDate "2006.08.07"]
[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. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 Nbd7 6. cxd5 exd5 7. Bd3 0-0 8. Nge2 c5 9. Rc1 c4 10. Bb1 Re8 11. 0-0 Nf8 12. f3 Ne6 13. Bh4 g6 14. Bf2 a6 15. e4 dxe4 16. fxe4 Ng4 17. Nd5 Bg5 18. Rxc4 b5 19. Rc3 Nxf2 20. Rxf2 Bb7 21. Rcf3 Bxd5 22. exd5 Qxd5 23. Rd3 b4 24. a3 a5 25. Qb3 Qxb3 26. Rxb3 bxa3 1/2-1/2

[Event "Ostroda op"]
[Site "Ostroda"]
[Date "2006.08.08"]
[Round "3.2"]
[White "Michalak, Robert"]
[Black "Siwon, Zbigniew"]
[Result "1-0"]
[ECO "D00"]
[WhiteElo "1784"]
[BlackElo "1959"]
[PlyCount "65"]
[EventDate "2006.08.07"]
[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. d4 d5 2. Bg5 g6 3. e3 Bg7 4. Bd3 f5 5. Nd2 Nf6 6. f4 b6 7. Ngf3 Ne4 8. Bh4 Ba6 9. Bxa6 Nxa6 10. c3 Qd6 11. Qa4+ b5 12. Qxb5+ Kf8 13. Nxe4 fxe4 14. Ne5 Bxe5 15. fxe5 Qe6 16. 0-0+ Kg7 17. Bxe7 Qxe7 18. Qxa6 Rhf8 19. Rxf8 Rxf8 20. Rf1 Rxf1+ 21. Qxf1 Qg5 22. Qf4 Qh5 23. Qf6+ Kg8 24. h3 g5 25. Qd8+ Kg7 26. Qxc7+ Kg8 27. Qb8+ Kg7 28. Qxa7+ Kg8 29. Qb8+ Kg7 30. Qc7+ Kg8 31. e6 Qd1+ 32. Kh2 g4 33. Qf7+ 1-0

[Event "Ostroda op"]
[Site "Ostroda"]
[Date "2006.08.08"]
[Round "2.2"]
[White "Siwon, Zbigniew"]
[Black "Krasiewicz, Dawid"]
[Result "1-0"]
[ECO "D10"]
[WhiteElo "1959"]
[BlackElo "1702"]
[PlyCount "136"]
[EventDate "2006.08.07"]
[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. d4 c6 2. c4 d5 3. cxd5 cxd5 4. Nc3 Nc6 5. Nf3 Bf5 6. Qb3 Nf6 7. Qxb7 Qc8 8. Qxc8+ Rxc8 9. a3 e6 10. Bf4 Nh5 11. Bg3 Nxg3 12. hxg3 Na5 13. Nd2 Be7 14. e3 0-0 15. Be2 Rfd8 16. 0-0 Bc2 17. Rac1 Bb3 18. Nxb3 Nxb3 19. Rc2 Bf6 20. f4 Rd6 21. Bb5 a6 22. Ba4 Na5 23. Nxd5 Rxc2 24. Nxf6+ gxf6 25. Bxc2 Nc4 26. Kf2 Nxb2 27. Rb1 Rb6 28. Ke2 Nc4 29. Rxb6 Nxb6 30. g4 h6 31. Kd3 Kf8 32. e4 Ke7 33. Kc3 a5 34. Bb3 Kd6 35. Kd3 Kc6 36. a4 Kd6 37. Ke3 Na8 38. Kf3 Nc7 39. Bc4 Na8 40. Kg3 Ke7 41. Kh4 Kf8 42. g5 hxg5+ 43. fxg5 fxg5+ 44. Kxg5 Ke7 45. Kf4 f6 46. g4 Nb6 47. Bb5 Nc8 48. e5 Kf7 49. Bc4 Ne7 50. Ke4 fxe5 51. Kxe5 Nc6+ 52. Ke4 Kf6 53. g5+ Kxg5 54. Bxe6 Kf6 55. Bc4 Nb4 56. d5 Ke7 57. Ke5 Kd7 58. Bb5+ Kc7 59. Ke6 Kd8 60. Kd6 Na2 61. Kc5 Nc3 62. Bc6 Kc7 63. d6+ Kd8 64. Kb6 Nxa4+ 65. Bxa4 Kc8 66. Kc6 Kd8 67. d7 Ke7 68. Kc7 Ke6 1-0

[Event "Ostroda op"]
[Site "Ostroda"]
[Date "2006.08.07"]
[Round "1.4"]
[White "Muller, Marcin"]
[Black "Siwon, Zbigniew"]
[Result "0-1"]
[ECO "A34"]
[BlackElo "1959"]
[PlyCount "94"]
[EventDate "2006.08.07"]
[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. c4 c5 2. Nc3 Nc6 3. e4 d6 4. h3 Nf6 5. Nf3 g6 6. d3 Bg7 7. Be2 0-0 8. 0-0 h6 9. a4 h5 10. Be3 Bd7 11. Rb1 a5 12. Qc1 Nh7 13. Bh6 e5 14. Nd5 Nd4 15. Nxd4 cxd4 16. b3 f5 17. Bxg7 Kxg7 18. f3 b6 19. Qa3 Be6 20. Kh1 f4 21. Rfc1 Rf7 22. b4 Rb7 23. bxa5 Rxa5 24. Rb5 Bxd5 25. cxd5 Rc7 26. Rxa5 Rxc1+ 27. Qxc1 bxa5 28. Qc6 Nf6 29. Bd1 Qb8 30. Bc2 g5 31. Qb5 Qxb5 32. axb5 Nd7 33. Kg1 Kf7 34. Kf2 Ke7 35. Ke2 Kd8 36. Bb3 Kc7 37. Kd2 Kb6 38. Bc4 Nf6 39. Kc2 Ne8 40. Kb3 Nc7 41. Ka4 h4 42. Ka3 Nxb5+ 43. Ka4 Nc3+ 44. Ka3 Nd1 45. Ka4 Ne3 46. Bb5 Nxg2 47. Bd7 Ne1 0-1

