[Event "Poznan Pocztowiec-ch op"]
[Site "Poznan"]
[Date "2008.10.19"]
[Round "9.15"]
[White "Sieciechowicz, Mikolaj"]
[Black "Kucharczak, Dawid"]
[Result "0-1"]
[ECO "C50"]
[PlyCount "38"]
[EventDate "2008.10.03"]
[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 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. d3 Nf6 5. Bg5 d6 6. h3 h6 7. Bh4 g5 8. Bg3 g4 9. Bh4 Nd4 10. Nbd2 gxf3 11. Nxf3 Rg8 12. Nxd4 Bxd4 13. c3 Bb6 14. Qf3 Rg6 15. 0-0-0 a5 16. Rhe1 c5 17. d4 cxd4 18. cxd4 Bxd4 19. Rxd4 Qc7 0-1

[Event "Poznan Pocztowiec-ch op"]
[Site "Poznan"]
[Date "2008.10.18"]
[Round "8.15"]
[White "Zacharzewski, Kamil"]
[Black "Sieciechowicz, Mikolaj"]
[Result "1-0"]
[ECO "C54"]
[PlyCount "67"]
[EventDate "2008.10.03"]
[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 e5 2. Bc4 Nf6 3. d3 Bc5 4. Nf3 Nc6 5. c3 0-0 6. b4 d5 7. exd5 Nxd5 8. bxc5 Bg4 9. 0-0 h6 10. Re1 Re8 11. Bb2 a6 12. Bb3 b5 13. cxb6 Nxb6 14. h3 Bh5 15. Re3 Nd5 16. Bxd5 Qxd5 17. Na3 Rab8 18. Nc4 f6 19. Qd2 e4 20. Nd4 exd3 21. Qxd3 Rxe3 22. Nxe3 Qd6 23. Nef5 Qd5 24. Qg3 Qd7 25. Nxc6 Rxb2 26. Nce7+ Kf7 27. Qxg7+ Ke6 28. Re1+ Be2 29. Nd4+ Kd6 30. Nef5+ Qxf5 31. Nxf5+ Ke5 32. Nd4 Rxa2 33. Qe7+ Kf4 34. Qe3# 1-0

[Event "Poznan Pocztowiec-ch op"]
[Site "Poznan"]
[Date "2008.10.17"]
[Round "7.15"]
[White "Sieciechowicz, Mikolaj"]
[Black "Fengier, Dariusz"]
[Result "0-1"]
[ECO "C55"]
[PlyCount "108"]
[EventDate "2008.10.03"]
[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 e5 2. Nf3 Nf6 3. Nc3 Nc6 4. Bc4 Nxe4 5. Nxe4 d5 6. Bxd5 Qxd5 7. d3 Bg4 8. 0-0 Nd4 9. c4 Qa5 10. Ned2 Bb4 11. a3 0-0 12. Nb3 Nxb3 13. Qxb3 Bd6 14. Qxb7 Rab8 15. Qe4 f5 16. Qd5+ Qxd5 17. cxd5 Rb5 18. b4 Rxd5 19. Ne1 Be2 20. Rb1 Bxf1 21. Kxf1 Rb8 22. Nc2 Rxd3 23. Be3 c5 24. Ke2 e4 25. g3 a5 26. b5 c4 27. a4 Be5 28. b6 Rb3 29. Rd1 Rd3 30. Rb1 Rd5 31. Na3 c3 32. Nc4 Bf6 33. Bf4 Rb7 34. Nd6 Rb8 35. Nc4 Rb7 36. Nd6 Rxd6 37. Bxd6 Bd4 38. Rb5 Rxb6 39. Rxb6 Bxb6 40. Kd1 Bxf2 41. Bc7 Kf7 42. Bxa5 Bd4 43. Bc7 Ke6 44. a5 Kd7 45. Bb6 Bxb6 46. axb6 Kc6 47. Kc2 Kxb6 48. Kxc3 Kc5 49. Kd2 Kd4 50. Ke2 g5 51. Kf2 Kd3 52. h3 Kd2 53. Kf1 e3 54. Kg2 e2 0-1

[Event "Poznan Pocztowiec-ch op"]
[Site "Poznan"]
[Date "2008.10.12"]
[Round "6.16"]
[White "Jarmuzek, Karolina"]
[Black "Sieciechowicz, Mikolaj"]
[Result "1-0"]
[ECO "C70"]
[PlyCount "69"]
[EventDate "2008.10.03"]
[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 e5 2. Nf3 Nc6 3. Bb5 Nge7 4. c3 a6 5. Ba4 d6 6. d4 exd4 7. cxd4 d5 8. exd5 Qxd5 9. Nc3 Qe6+ 10. Ne5 Nd5 11. 0-0 Bd7 12. Nxc6 Qf6 13. Nxd5 Qd6 14. Re1+ Be6 15. Ne5+ b5 16. Bb3 0-0-0 17. Bf4 Bxd5 18. Nxf7 Qxf4 19. Bxd5 Rxd5 20. Nxh8 Rxd4 21. Qf3 Qxf3 22. gxf3 Rd8 23. Nf7 Bc5 24. Nxd8 Kxd8 25. Rad1+ Kc8 26. Re8+ Kb7 27. Rd5 Kc6 28. Rxc5+ Kxc5 29. Re7 c6 30. Rxg7 Kd4 31. Rxh7 c5 32. Rd7+ Kc4 33. h4 Kb4 34. h5 c4 35. h6 1-0

[Event "Poznan Pocztowiec-ch op"]
[Site "Poznan"]
[Date "2008.10.11"]
[Round "5.15"]
[White "Sieciechowicz, Mikolaj"]
[Black "Palasz, Miroslaw"]
[Result "0-1"]
[ECO "B07"]
[PlyCount "102"]
[EventDate "2008.10.03"]
[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 d6 2. Nc3 Nf6 3. Nf3 c6 4. Bc4 b5 5. Bb3 b4 6. e5 bxc3 7. exf6 cxd2+ 8. Bxd2 exf6 9. 0-0 Be7 10. Re1 0-0 11. Qe2 Re8 12. Qd3 Nd7 13. Qc4 Rf8 14. Qxc6 Nb6 15. Ba5 Bd7 16. Bxb6 axb6 17. Qe4 Re8 18. Nh4 Ra5 19. Bd5 Bf8 20. Qc4 Re7 21. b4 Ra7 22. a3 Rc7 23. Qb3 Qe8 24. Re3 Rxe3 25. fxe3 Be6 26. c4 Bxd5 27. cxd5 Qe5 28. Rb1 Rc3 29. Qb2 Qxe3+ 30. Qf2 Rc1+ 31. Rxc1 Qxc1+ 32. Qf1 Qxa3 33. Qf4 g5 34. Qxf6 Qe3+ 35. Kf1 Qd3+ 36. Kf2 gxh4 37. Qg5+ Qg6 38. Qxg6+ hxg6 39. Kf3 Kg7 40. g4 hxg3 41. hxg3 f5 42. Ke3 Kf6 43. Kd4 b5 44. Ke3 Ke5 45. Kf3 g5 46. g4 fxg4+ 47. Kxg4 Be7 48. Kf3 Kxd5 49. Ke2 Kc4 50. Kf3 Kxb4 51. Ke4 Kc3 0-1

[Event "Poznan Pocztowiec-ch op"]
[Site "Poznan"]
[Date "2008.10.05"]
[Round "3.16"]
[White "Krepski, Krzysztof"]
[Black "Sieciechowicz, Mikolaj"]
[Result "1-0"]
[ECO "C55"]
[PlyCount "97"]
[EventDate "2008.10.03"]
[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 e5 2. Nf3 Nc6 3. Bc4 h6 4. Nc3 Nf6 5. d4 exd4 6. Nxd4 Ne5 7. 0-0 Nxc4 8. Qe2 Ne5 9. Bf4 d6 10. Rfd1 a6 11. Bxe5 Qe7 12. Bxf6 Qxf6 13. Nd5 Qd8 14. e5 Be6 15. Nxe6 fxe6 16. exd6 cxd6 17. Qxe6+ Be7 18. Nxe7 Qxe7 19. Re1 Qxe6 20. Rxe6+ Kd7 21. Rae1 Rhe8 22. Rxe8 Rxe8 23. Rxe8 Kxe8 24. Kf1 Ke7 25. Ke2 Ke6 26. Ke3 Ke5 27. h3 b5 28. f4+ Ke6 29. g4 d5 30. h4 h5 31. Kf3 g6 32. c3 Kd6 33. g5 Ke6 34. a3 a5 35. b3 b4 36. axb4 axb4 37. cxb4 d4 38. Ke4 d3 39. Kxd3 Kf5 40. Ke3 Kg4 41. b5 Kxh4 42. b6 Kg3 43. b7 h4 44. b8Q h3 45. Qh8 h2 46. b4 Kg2 47. b5 h1Q 48. Qxh1+ Kxh1 49. b6 1-0

[Event "Poznan Pocztowiec-ch op"]
[Site "Poznan"]
[Date "2008.10.04"]
[Round "2.14"]
[White "Sieciechowicz, Mikolaj"]
[Black "Kaluzny, Tomasz"]
[Result "0-1"]
[ECO "B30"]
[PlyCount "89"]
[EventDate "2008.10.03"]
[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. Bc4 Nc6 3. Nc3 e6 4. Nf3 Nf6 5. d3 d5 6. Bb5 Bd7 7. e5 Ng4 8. Bxc6 Bxc6 9. d4 Nh6 10. 0-0 Nf5 11. Re1 Qb6 12. Ne2 Be7 13. c3 0-0 14. b3 cxd4 15. Nexd4 Bc5 16. Be3 Rac8 17. Rb1 Nxd4 18. Bxd4 Bb5 19. a4 Bd7 20. b4 Bxd4 21. Qxd4 Qxd4 22. cxd4 Bxa4 23. Ra1 b5 24. Nd2 Rc2 25. Nf3 Rfc8 26. h3 Rb2 27. Rec1 Rxc1+ 28. Rxc1 Rc2 29. Rxc2 Bxc2 30. Nd2 Bd3 31. f3 Bc4 32. Kf2 Kf8 33. Nb1 Ke7 34. Na3 Kd7 35. Nxc4 bxc4 36. Ke3 Kc6 37. Kd2 Kb5 38. Kc3 a5 39. bxa5 Kxa5 40. h4 Kb5 41. g3 Kc6 42. Kb4 Kd7 43. Kc5 c3 44. Kb4 c2 45. Kb3 0-1

[Event "Poznan Pocztowiec-ch op"]
[Site "Poznan"]
[Date "2008.10.03"]
[Round "1.13"]
[White "Przybylak, Lukasz"]
[Black "Sieciechowicz, Mikolaj"]
[Result "1-0"]
[ECO "C30"]
[WhiteElo "1813"]
[PlyCount "41"]
[EventDate "2008.10.03"]
[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 e5 2. Nc3 Nf6 3. f4 d6 4. Nf3 Nc6 5. Bc4 h6 6. 0-0 exf4 7. d4 Bg4 8. Bxf4 Bxf3 9. Rxf3 g5 10. Bg3 Bg7 11. e5 dxe5 12. Bxe5 Nxe5 13. dxe5 Qxd1+ 14. Rxd1 Ng4 15. Bxf7+ Ke7 16. Nd5+ Kd8 17. Nf6+ Ke7 18. Rd7+ Kf8 19. Nxg4 Bxe5 20. Nxe5 Kg7 21. Be6# 1-0

[Event "Poznan Pocztowiec-ch op-B"]
[Site "Poznan"]
[Date "2007.10.14"]
[Round "9.9"]
[White "Sieciechowicz, Mikolaj"]
[Black "Paczka, Patryk"]
[Result "0-1"]
[ECO "B50"]
[PlyCount "86"]
[EventDate "2007.09.28"]
[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. Bc4 Nc6 3. Nf3 d6 4. Nc3 Bg4 5. h3 Bh5 6. d3 Nf6 7. Bg5 Bxf3 8. Qxf3 a6 9. 0-0 Ne5 10. Qe2 Nxc4 11. dxc4 h6 12. Bh4 g5 13. Bg3 Bg7 14. Rad1 Qb6 15. Rb1 Nd7 16. Nd5 Qc6 17. c3 e6 18. Ne3 0-0-0 19. Nc2 Be5 20. Qf3 Bxg3 21. fxg3 f5 22. exf5 Qxf3 23. Rxf3 Rhf8 24. Rbf1 Ne5 25. R3f2 Nxc4 26. fxe6 Rxf2 27. Rxf2 Re8 28. Rf6 Nxb2 29. Rxh6 Nd1 30. c4 Nc3 31. a3 Ne4 32. g4 b5 33. cxb5 axb5 34. Rg6 d5 35. Ne3 d4 36. Nd5 c4 37. e7 d3 38. Re6 d2 39. Nc3 Nxc3 40. Rd6 d1Q+ 41. Rxd1 Nxd1 42. g3 c3 43. h4 c2 0-1

[Event "Poznan Pocztowiec-ch op-B"]
[Site "Poznan"]
[Date "2007.10.13"]
[Round "8.12"]
[White "Kuzniarski, Maciej"]
[Black "Sieciechowicz, Mikolaj"]
[Result "0-1"]
[ECO "C50"]
[PlyCount "58"]
[EventDate "2007.09.28"]
[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 e5 2. Nf3 Nc6 3. Bc4 h6 4. d4 d6 5. 0-0 Nf6 6. Nc3 Bg4 7. h3 Bxf3 8. Qxf3 Nxd4 9. Qd3 Be7 10. Be3 c5 11. Bb5+ Nd7 12. Bxd7+ Qxd7 13. Qb5 Nxb5 14. Nxb5 Qxb5 15. Rab1 0-0 16. c3 Rad8 17. b4 Qc4 18. bxc5 Qxe4 19. cxd6 Rxd6 20. Bc5 Re6 21. Bxe7 Rxe7 22. Rbe1 Qc2 23. Rc1 Qxa2 24. g3 e4 25. f3 exf3 26. Rxf3 Re2 27. Rff1 Rg2+ 28. Kh1 Rh2+ 29. Kg1 Qg2# 0-1

[Event "Poznan Pocztowiec-ch op-B"]
[Site "Poznan"]
[Date "2007.10.12"]
[Round "7.9"]
[White "Sieciechowicz, Mikolaj"]
[Black "Koper, Konrad"]
[Result "0-1"]
[ECO "B01"]
[PlyCount "66"]
[EventDate "2007.09.28"]
[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. d3 dxe4 3. dxe4 Qxd1+ 4. Kxd1 Nf6 5. f3 e5 6. Nc3 Bb4 7. Bd2 c6 8. a3 Bc5 9. Nge2 0-0 10. Ke1 Be6 11. Na4 Be7 12. Be3 Nbd7 13. Rd1 b5 14. Nac3 Bc5 15. Bg5 a5 16. Bxf6 gxf6 17. f4 Nb6 18. f5 Bc8 19. Ng3 b4 20. Nb1 Na4 21. axb4 axb4 22. b3 Nb2 23. Rd2 Ra1 24. c4 Rxb1+ 25. Ke2 Be7 26. Kf3 Rd8 27. Rxd8+ Bxd8 28. Ke2 Nd1 29. Kd2 Nc3 30. Kc2 Ra1 31. Kb2 Ra2+ 32. Kc1 Bb6 33. Bd3 Be3# 0-1

[Event "Poznan Pocztowiec-ch op-B"]
[Site "Poznan"]
[Date "2007.10.07"]
[Round "6.11"]
[White "Kaluzny, Jacek"]
[Black "Sieciechowicz, Mikolaj"]
[Result "1/2-1/2"]
[ECO "C50"]
[PlyCount "110"]
[EventDate "2007.09.28"]
[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 e5 2. Nf3 Nc6 3. Bc4 h6 4. 0-0 Nf6 5. d4 exd4 6. e5 d5 7. Bb3 Ne4 8. Re1 Bc5 9. Qd3 0-0 10. Nbd2 Bf5 11. Nxe4 dxe4 12. Qc4 b6 13. Nd2 Nxe5 14. Qd5 Qxd5 15. Bxd5 Rad8 16. Bxe4 Bxe4 17. Rxe4 Rfe8 18. Re1 d3 19. cxd3 Nxd3 20. Rxe8+ Rxe8 21. Nf3 Bxf2+ 22. Kf1 f6 23. Bd2 Kh7 24. Rd1 Nxb2 25. Rc1 Bc5 26. Bf4 Nd3 27. Rc4 b5 28. Rc3 Nxf4 29. Rxc5 Re2 30. Rf5 Re4 31. Nd2 Ra4 32. Nf3 Ng6 33. Rxb5 Rxa2 34. Rb7 c5 35. Rc7 Ra5 36. Nd2 Ne5 37. Ne4 Nd3 38. Ke2 f5 39. Kxd3 fxe4+ 40. Kxe4 Ra4+ 41. Kd3 c4+ 42. Rxc4 Rxc4 43. Kxc4 Kg6 44. Kb5 Kf5 45. Ka6 g5 46. Kxa7 Kf4 47. Kb6 g4 48. Kc5 h5 49. Kd4 h4 50. Kd3 h3 51. gxh3 gxh3 52. Ke2 Kg4 53. Kf2 Kf4 54. Ke2 Ke4 55. Kf2 Kf4 1/2-1/2

[Event "Poznan Pocztowiec-ch op-B"]
[Site "Poznan"]
[Date "2007.10.06"]
[Round "5.12"]
[White "Sieciechowicz, Mikolaj"]
[Black "Michalak, Roman"]
[Result "1-0"]
[ECO "B50"]
[PlyCount "63"]
[EventDate "2007.09.28"]
[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. Bc4 e6 4. d3 Be7 5. Nc3 d6 6. 0-0 Nf6 7. Re1 0-0 8. e5 dxe5 9. Nxe5 Na5 10. Bf4 a6 11. h3 Bd6 12. a3 Nxc4 13. dxc4 Qb6 14. Na4 Qc7 15. Qf3 Rb8 16. Nc3 b5 17. Rad1 Bxe5 18. Bxe5 Qb6 19. Bxb8 Qxb8 20. cxb5 axb5 21. Rb1 Qb6 22. b4 c4 23. Ra1 Bb7 24. Qe3 Qc6 25. f3 e5 26. Qxe5 Re8 27. Qxb5 Rxe1+ 28. Rxe1 Qc8 29. Qc5 Qb8 30. Qxc4 Qa7+ 31. Kh1 h6 32. Re7 1-0

[Event "Poznan Pocztowiec-ch op-B"]
[Site "Poznan"]
[Date "2007.10.05"]
[Round "4.10"]
[White "Frackowiak, Andrzej"]
[Black "Sieciechowicz, Mikolaj"]
[Result "1-0"]
[ECO "D06"]
[WhiteElo "1883"]
[PlyCount "77"]
[EventDate "2007.09.28"]
[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 Nf6 3. cxd5 Nxd5 4. e4 Nf6 5. Nc3 c6 6. Bc4 e6 7. a3 h6 8. Nf3 Be7 9. 0-0 b5 10. Bd3 0-0 11. Be3 Qc7 12. Rc1 Qd8 13. Qd2 a5 14. Ne2 Bb7 15. h3 Nbd7 16. e5 Nd5 17. Bxh6 f5 18. Bg5 Rf7 19. Bxe7 Qxe7 20. Qg5 Qxg5 21. Nxg5 Rff8 22. Nxe6 Rfe8 23. Bxf5 Re7 24. Nc5 Nxc5 25. Rxc5 Nb6 26. b3 a4 27. b4 Nc4 28. Ra1 Kh8 29. Bd3 Nb6 30. Rac1 Rc8 31. f4 Nd7 32. R5c3 Nf8 33. Bxb5 Rec7 34. Bxa4 Ba6 35. Ng3 Ne6 36. Rxc6 Nxd4 37. Rxc7 Rxc7 38. Rxc7 Ne6 39. Rc6 1-0

[Event "Poznan Pocztowiec-ch op-B"]
[Site "Poznan"]
[Date "2007.09.30"]
[Round "3.7"]
[White "Sieciechowicz, Mikolaj"]
[Black "Polarczyk, Pawel"]
[Result "0-1"]
[ECO "B06"]
[BlackElo "1760"]
[PlyCount "86"]
[EventDate "2007.09.28"]
[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 g6 2. Nf3 Bg7 3. Bc4 e6 4. d4 d5 5. exd5 exd5 6. Bb3 Nf6 7. Bg5 0-0 8. Nc3 Re8+ 9. Ne2 Bg4 10. Qd3 Bf5 11. Qd2 Be4 12. Nh4 Qd7 13. f3 Bf5 14. Nxf5 Qxf5 15. 0-0 Rxe2 16. Qxe2 Qxg5 17. Qe7 Nbd7 18. c4 Re8 19. Qb4 Qe3+ 20. Kh1 Qxd4 21. Qxb7 dxc4 22. Ba4 Qb6 23. Qxb6 cxb6 24. Rac1 Re2 25. Rb1 Nc5 26. Bb5 Nfd7 27. b4 a6 28. Bxc4 Rc2 29. Rbc1 Rxc1 30. Rxc1 Ne6 31. Bxa6 Kf8 32. Rd1 Ke7 33. Bb5 Nd4 34. Re1+ Kd6 35. Bc4 Ne5 36. Rd1 Nxc4 37. Re1 Ne6 38. Kg1 Bc3 39. Rc1 Bd4+ 40. Kf1 b5 41. Ke2 Nf4+ 42. Kf1 Ne3+ 43. Kf2 Nd3+ 0-1

[Event "Poznan Pocztowiec-ch op-B"]
[Site "Poznan"]
[Date "2007.09.29"]
[Round "2.5"]
[White "Sieciechowicz, Mikolaj"]
[Black "Chojnacki, Tomasz"]
[Result "0-1"]
[ECO "B10"]
[BlackElo "1782"]
[PlyCount "66"]
[EventDate "2007.09.28"]
[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 c6 2. Nf3 d5 3. e5 Bg4 4. Be2 e6 5. d4 c5 6. b3 Bxf3 7. Bxf3 cxd4 8. Qxd4 Ne7 9. c4 Nec6 10. Qf4 dxc4 11. Bxc6+ Nxc6 12. Qxc4 Qa5+ 13. Kf1 Rd8 14. Nc3 Bb4 15. Bb2 Rd4 16. Qb5 Bxc3 17. Qxa5 Bxa5 18. Bxd4 Nxd4 19. Rd1 Nc6 20. f4 Ke7 21. Kf2 Bb6+ 22. Kf3 Nd4+ 23. Ke4 Rd8 24. g4 f5+ 25. gxf5 exf5+ 26. Kd3 Ne6+ 27. Kc4 Nxf4 28. Rxd8 Bxd8 29. Rf1 g5 30. h4 h6 31. hxg5 hxg5 32. Rg1 Ke6 33. Rxg5 Bxg5 0-1

[Event "Poznan Pocztowiec-ch op-B"]
[Site "Poznan"]
[Date "2007.09.28"]
[Round "1.11"]
[White "Kaluzny, Tomasz"]
[Black "Sieciechowicz, Mikolaj"]
[Result "0-1"]
[ECO "C50"]
[PlyCount "60"]
[EventDate "2007.09.28"]
[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 e5 2. Nf3 Nc6 3. Bc4 h6 4. d4 d6 5. 0-0 Nf6 6. Nc3 Bg4 7. dxe5 dxe5 8. Qxd8+ Rxd8 9. Nd2 a6 10. Nb3 Bb4 11. Nd5 Nxd5 12. Bxd5 Be2 13. Be3 Bxf1 14. Rxf1 0-0 15. c3 Be7 16. Nc5 Bxc5 17. Bxc5 Rfe8 18. f3 Ne7 19. Bxb7 Rb8 20. Bxa6 Rxb2 21. a3 Rc2 22. Bb4 Ra8 23. Bc4 Re8 24. Bb5 c6 25. Bc4 Ng6 26. a4 Nf4 27. a5 Rxg2+ 28. Kh1 Rd8 29. a6 Rdd2 30. Rg1 Rxh2# 0-1

[Event "Poznan op-B 16th"]
[Site "Poznan"]
[Date "2007.07.28"]
[Round "8.38"]
[White "Ratajczak, Mateusz"]
[Black "Sieciechowicz, Mikolaj"]
[Result "1-0"]
[ECO "C50"]
[WhiteElo "1800"]
[BlackElo "1400"]
[PlyCount "82"]
[EventDate "2007.07.21"]
[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 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 h6 5. c3 d6 6. 0-0 Nf6 7. Re1 Ng4 8. cxd4 Na5 9. Qa4+ Nc6 10. d5 Bd7 11. dxc6 Bxc6 12. Qb3 Qf6 13. Nc3 Be7 14. Nd5 Bxd5 15. Bxd5 Rb8 16. Qb5+ c6 17. Bxc6+ bxc6 18. Qxb8+ Bd8 19. e5 dxe5 20. Rxe5+ Nxe5 21. Qxe5+ Be7 22. Qb8+ Bd8 23. Be3 0-0 24. Bd4 Bb6 25. Qxf8+ Kxf8 26. Bxf6 gxf6 27. Re1 a5 28. b3 Bd8 29. Nd4 c5 30. Nc6 Bb6 31. Re4 Bc7 32. Ra4 Ke8 33. Nxa5 Bb6 34. Nb7 Kd7 35. Na5 Bc7 36. Nc4 Ke6 37. Ra6+ Ke7 38. a4 h5 39. Rc6 Kd8 40. a5 Bxa5 41. Nxa5 Kd7 1-0

[Event "Poznan op-B 16th"]
[Site "Poznan"]
[Date "2007.07.27"]
[Round "7.41"]
[White "Sieciechowicz, Mikolaj"]
[Black "Zgarda, Marek"]
[Result "1-0"]
[ECO "C55"]
[WhiteElo "1400"]
[PlyCount "66"]
[EventDate "2007.07.21"]
[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 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Nc3 Nd4 5. Nxe5 Ne6 6. d4 c6 7. d5 cxd5 8. exd5 Nc5 9. d6 Ne6 10. Bg5 Qa5 11. f4 Ne4 12. Qd5 Qxd5 13. Bxd5 N4xg5 14. fxg5 Nxg5 15. Nb5 Bxd6 16. Nxd6+ Ke7 17. Ndxf7 Nxf7 18. Nxf7 Rf8 19. 0-0 d6 20. Rae1+ Kd7 21. Re3 Rb8 22. Rfe1 Kc7 23. Re7+ Bd7 24. R1e3 Rfe8 25. Rc3+ Kb6 26. Rxd7 Re1+ 27. Kf2 Ree8 28. Rxd6+ Ka5 29. Ra3+ Kb5 30. Rb3+ Kc5 31. Bxb7 Re7 32. Rc3+ Kb5 33. Ba6+ Kb4 1-0

[Event "Poznan op-B 16th"]
[Site "Poznan"]
[Date "2007.07.26"]
[Round "6.39"]
[White "Sieciechowicz, Mikolaj"]
[Black "Szymanska, Natalia"]
[Result "0-1"]
[ECO "C50"]
[WhiteElo "1400"]
[BlackElo "1600"]
[PlyCount "63"]
[EventDate "2007.07.21"]
[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 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. d3 h6 5. Nc3 d6 6. Na4 Bb6 7. Nxb6 cxb6 8. 0-0 Bg4 9. h3 Bh5 10. Qd2 Bxf3 11. gxf3 Nd4 12. Qd1 Qf6 13. f4 Qh4 14. c3 Nc6 15. Qf3 Nf6 16. Rd1 Rd8 17. Be3 0-0 18. d4 exf4 19. Bxf4 Nh5 20. d5 Na5 21. Bd2 Nxc4 22. b3 Nxd2 23. Rxd2 Qg5+ 24. Kf1 Qxd2 25. Qxh5 Qxc3 26. Re1 Qe5 27. Qf3 Rc8 28. Re3 Rc1+ 29. Re1 Rxe1+ 30. Kxe1 Rc8 31. Ke2 Rc2+ 32. Ke3 0-1

[Event "Poznan op-B 16th"]
[Site "Poznan"]
[Date "2007.07.25"]
[Round "5.41"]
[White "Nijakowski, Tomasz"]
[Black "Sieciechowicz, Mikolaj"]
[Result "0-1"]
[ECO "D00"]
[WhiteElo "1000"]
[BlackElo "1400"]
[PlyCount "54"]
[EventDate "2007.07.21"]
[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. Nf3 Nc6 3. Nc3 Nf6 4. e4 dxe4 5. Ng5 Nxd4 6. Bb5+ c6 7. Bc4 e6 8. Be3 Nf5 9. Qd2 Bb4 10. a3 Ba5 11. 0-0-0 Qxd2+ 12. Rxd2 0-0 13. f3 Nxe3 14. Bb3 exf3 15. Nxf3 Bc7 16. Re2 Bf4 17. g3 Nf5+ 18. gxf4 b5 19. Rg2 Bb7 20. h4 c5 21. Rhg1 Bxf3 22. Rg3 Nxg3 23. Rxg3 Bc6 24. Re3 c4 25. Ba2 Rad8 26. Rd3 cxd3 27. cxd3 Rxd3 0-1

[Event "Poznan op-B 16th"]
[Site "Poznan"]
[Date "2007.07.24"]
[Round "4.39"]
[White "Sieciechowicz, Mikolaj"]
[Black "Piechota, Jozef"]
[Result "0-1"]
[ECO "C41"]
[WhiteElo "1400"]
[BlackElo "1600"]
[PlyCount "88"]
[EventDate "2007.07.21"]
[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 e5 2. Nf3 d6 3. Bc4 Bg4 4. d3 Be7 5. 0-0 Nd7 6. Be3 h6 7. h3 Bh5 8. g4 Bg6 9. Nbd2 c6 10. d4 b5 11. Bb3 Bf6 12. c3 a5 13. a4 Ne7 14. d5 cxd5 15. Bxd5 Nxd5 16. exd5 Bd3 17. Re1 e4 18. Nd4 bxa4 19. Rxa4 0-0 20. c4 Be5 21. Kg2 Nf6 22. f3 Bxd4 23. Bxd4 exf3+ 24. Nxf3 Bg6 25. Qd2 Ne4 26. Qf4 Re8 27. Ra3 Rb8 28. Rae3 Qd7 29. Rxe4 Bxe4 30. Rxe4 Rxe4 31. Qxe4 a4 32. g5 Re8 33. Qd3 h5 34. g6 f6 35. Kg3 Re7 36. Kh4 Qc8 37. Qa3 Re4+ 38. Kg3 Qd7 39. b3 h4+ 40. Kf2 Qxh3 41. Qxa4 Qg3+ 42. Kf1 Qxf3+ 43. Kg1 Rg4+ 44. Kh2 Qg2# 0-1

[Event "Poznan op-B 16th"]
[Site "Poznan"]
[Date "2007.07.22"]
[Round "2.33"]
[White "Sieciechowicz, Mikolaj"]
[Black "Warchol, Maria"]
[Result "0-1"]
[ECO "C01"]
[WhiteElo "1400"]
[BlackElo "1777"]
[PlyCount "62"]
[EventDate "2007.07.21"]
[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 e6 2. Nf3 d5 3. exd5 exd5 4. d4 Bd6 5. Nc3 c6 6. Bd3 Nf6 7. Bg5 0-0 8. 0-0 Bg4 9. Be2 Nbd7 10. h3 Bf5 11. Nh4 Bg6 12. Nxg6 fxg6 13. Bh4 Qc7 14. Bd3 c5 15. Nb5 Qb6 16. Nxd6 Qxd6 17. dxc5 Qxc5 18. Qd2 Qd4 19. c3 Qxh4 20. b3 Nc5 21. b4 Nxd3 22. Qxd3 Qe4 23. Qd2 Qf5 24. a3 Ne4 25. Qd4 Rac8 26. Rae1 Rc4 27. Qe3 Rfc8 28. g4 Qf7 29. f3 Nxc3 30. Qxa7 Ne2+ 31. Kg2 Rc1 0-1

[Event "Poznan op-B 16th"]
[Site "Poznan"]
[Date "2007.07.21"]
[Round "1.33"]
[White "Koper, Konrad"]
[Black "Sieciechowicz, Mikolaj"]
[Result "1-0"]
[ECO "C50"]
[BlackElo "1400"]
[PlyCount "15"]
[EventDate "2007.07.21"]
[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 e5 2. Nf3 Nc6 3. Bc4 Be7 4. d4 exd4 5. c3 dxc3 6. Qd5 d6 7. Qxf7+ Kd7 8. Be6# 1-0

