[Event "POL-chT U19 2nd League"]
[Site "Borowice"]
[Date "2012.07.23"]
[Round "3"]
[White "Sieczkowski, Mateusz"]
[Black "Tomczak, Mikolaj"]
[Result "0-1"]
[ECO "B14"]
[BlackElo "1892"]
[PlyCount "54"]
[EventDate "2012.07.21"]
[EventType "team-swiss"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]
[WhiteTeam "Radom UKS MDK U19"]
[BlackTeam "Leszno Wieniawa U19"]
[WhiteTeamCountry "POL"]
[BlackTeamCountry "POL"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e3 0-0 5. Bd3 c5 6. Nf3 cxd4 7. exd4 d5 8. Be3 Nc6 9. c5 Bg4 10. h3 Bxf3 11. gxf3 e5 12. Bc2 exd4 13. Bxd4 Re8+ 14. Ne2 Nxd4 15. Qxd4 Ne4 16. Qb4 Ng5 17. Qa3 Qe7 18. Bd1 Ne6 19. Rc1 Nf4 20. Rc2 d4 21. Rd2 d3 22. Rxd3 Nxd3+ 23. Qxd3 Qxc5 24. Kf1 Rad8 25. Qb1 Rd2 26. b4 Qc4 27. Rg1 Rexe2 0-1

[Event "POL-chT U19 2nd League"]
[Site "Borowice"]
[Date "2012.07.23"]
[Round "4"]
[White "Szczecina, Kamil"]
[Black "Sieczkowski, Mateusz"]
[Result "1-0"]
[ECO "B09"]
[WhiteElo "1847"]
[PlyCount "53"]
[EventDate "2012.07.21"]
[EventType "team-swiss"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]
[WhiteTeam "Chorzowskie Towarzystwo Szachowe U19"]
[BlackTeam "Radom UKS MDK U19"]
[WhiteTeamCountry "POL"]
[BlackTeamCountry "POL"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Bc4 Bg7 5. f4 e5 6. dxe5 Bg4 7. Nf3 Bxf3 8. Qxf3 dxe5 9. fxe5 Nc6 10. exf6 Qxf6 11. Qxf6 Bxf6 12. 0-0 Bd4+ 13. Kh1 Ne5 14. Be2 h5 15. Bf4 Ng4 16. Bxg4 hxg4 17. Rad1 Bb6 18. Nd5 Ba5 19. Bxc7 Bb6 20. Bxb6 axb6 21. Nc7+ Ke7 22. Nxa8 Rxa8 23. a3 Ra4 24. Kg1 Rxe4 25. Rfe1 Re6 26. Rxe6+ fxe6 27. Kf2 1-0

[Event "POL-chT U19 2nd League"]
[Site "Borowice"]
[Date "2012.07.22"]
[Round "2"]
[White "Wyslobocki, Patryk"]
[Black "Sieczkowski, Mateusz"]
[Result "1-0"]
[ECO "B07"]
[WhiteElo "1702"]
[PlyCount "61"]
[EventDate "2012.07.21"]
[EventType "team-swiss"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]
[WhiteTeam "Zielona Gora KS 64 U19"]
[BlackTeam "Radom UKS MDK U19"]
[WhiteTeamCountry "POL"]
[BlackTeamCountry "POL"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Be3 Nc6 5. f3 Bg7 6. Qd2 0-0 7. Nge2 Ne8 8. g4 f6 9. h4 e5 10. d5 Nd4 11. Nxd4 exd4 12. Bxd4 f5 13. Bxg7 Kxg7 14. gxf5 gxf5 15. 0-0-0 Nf6 16. Bd3 Nh5 17. Rdg1+ Kf7 18. Qh6 Qf6 19. Qxh5+ Ke7 20. Qg5 Bd7 21. Qxf6+ Rxf6 22. Rg7+ Rf7 23. Rhg1 Raf8 24. exf5 Ke8 25. Nb5 Kd8 26. Nd4 h5 27. Ne6+ Bxe6 28. dxe6 Rxg7 29. Rxg7 Ke8 30. e7 Rf7 31. f6 1-0

[Event "POL-chT U19 2nd League"]
[Site "Chelm Lubelski"]
[Date "2010.07.14"]
[Round "11"]
[White "Sieczkowski, Mateusz"]
[Black "Kula, Maciej"]
[Result "0-1"]
[ECO "E90"]
[PlyCount "40"]
[EventDate "2010.07.06"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2011"]
[Source "ChessBase"]
[SourceDate "2010.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.26"]
[SourceQuality "1"]
[WhiteTeam "Radom UKS MDK U19"]
[BlackTeam "Czestochowa UKS Hetman U19"]
[WhiteTeamCountry "POL"]
[BlackTeamCountry "POL"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 0-0 6. Bg5 Nbd7 7. Qd2 c5 8. e5 cxd4 9. Qxd4 dxe5 10. Nxe5 Nh5 11. f4 Qa5 12. Bxe7 Nxe5 13. fxe5 Bxe5 14. Qd2 Re8 15. Nd5 Qa4 16. g3 Be6 17. b3 Qd7 18. Be2 Bxd5 19. Qxd5 Qxd5 20. cxd5 Bxa1 0-1

[Event "POL-chT U19 2nd League"]
[Site "Chelm Lubelski"]
[Date "2010.07.13"]
[Round "10"]
[White "Drabek, Jan"]
[Black "Sieczkowski, Mateusz"]
[Result "1-0"]
[ECO "B40"]
[WhiteElo "1670"]
[PlyCount "57"]
[EventDate "2010.07.06"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2011"]
[Source "ChessBase"]
[SourceDate "2010.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.26"]
[SourceQuality "1"]
[WhiteTeam "Krosno KKSz Urania U19"]
[BlackTeam "Radom UKS MDK U19"]
[WhiteTeamCountry "POL"]
[BlackTeamCountry "POL"]

1. e4 e6 2. d3 d5 3. Qe2 c5 4. Nf3 Nc6 5. g3 e5 6. Bg2 Nge7 7. 0-0 Bg4 8. exd5 Qxd5 9. Nc3 Nd4 10. Nxd4 Bxe2 11. Nxd5 Bxf1 12. Kxf1 Nxd5 13. Nb5 a6 14. Bxd5 axb5 15. Bxb7 Ra7 16. Bc6+ Kd8 17. Bxb5 Bd6 18. a4 h5 19. Be3 f6 20. a5 Kc7 21. c4 g5 22. b4 Raa8 23. bxc5 Be7 24. c6 Bd6 25. Bb6+ Kb8 26. c5 Bc7 27. a6 Kc8 28. a7 Bb8 29. Ba6# 1-0

[Event "POL-chT U19 2nd League"]
[Site "Chelm Lubelski"]
[Date "2010.07.12"]
[Round "9"]
[White "Kanicki, Krzysztof"]
[Black "Sieczkowski, Mateusz"]
[Result "1-0"]
[ECO "C01"]
[WhiteElo "1706"]
[PlyCount "43"]
[EventDate "2010.07.06"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2011"]
[Source "ChessBase"]
[SourceDate "2010.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.26"]
[SourceQuality "1"]
[WhiteTeam "Wroclaw MUKS MDK Fabryczna U19"]
[BlackTeam "Radom UKS MDK U19"]
[WhiteTeamCountry "POL"]
[BlackTeamCountry "POL"]

1. e4 e6 2. d4 d5 3. exd5 exd5 4. Nf3 Nf6 5. Bg5 Bf5 6. Bd3 Bxd3 7. Qxd3 a6 8. 0-0 Qd6 9. Nbd2 Nbd7 10. Rfe1+ Be7 11. Nh4 0-0-0 12. Nf5 Qb6 13. Nxe7+ Kb8 14. c3 Rde8 15. Qc2 g6 16. Qb3 Qd6 17. Qa3 Qb6 18. Bf4 Ka8 19. Qb3 Qa5 20. Re2 c5 21. Rae1 c4 22. Qa3 1-0

[Event "POL-chT U19 2nd League"]
[Site "Chelm Lubelski"]
[Date "2010.07.12"]
[Round "8"]
[White "Sieczkowski, Mateusz"]
[Black "Siedlanowski, Lukasz"]
[Result "0-1"]
[ECO "D07"]
[BlackElo "1723"]
[PlyCount "74"]
[EventDate "2010.07.06"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2011"]
[Source "ChessBase"]
[SourceDate "2010.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.26"]
[SourceQuality "1"]
[WhiteTeam "Radom UKS MDK U19"]
[BlackTeam "Lesniowice U19"]
[WhiteTeamCountry "POL"]
[BlackTeamCountry "POL"]

1. d4 d5 2. c4 e5 3. Nc3 Nc6 4. cxd5 Nxd4 5. e3 Nf5 6. Bd3 Nf6 7. Qf3 g6 8. g3 Bb4 9. Nge2 Nxd5 10. e4 Nd4 11. Nxd4 exd4 12. exd5 dxc3 13. 0-0 0-0 14. Bh6 cxb2 15. Rab1 Re8 16. Rxb2 Bf8 17. Bd2 b6 18. d6 Bh3 19. Bc4 Be6 20. dxc7 Qxc7 21. Bc3 Bg7 22. Bxg7 Kxg7 23. Bb5 Red8 24. Rd1 Rxd1+ 25. Qxd1 Qe5 26. Rb4 a5 27. Qd4 Qxd4 28. Rxd4 Bxa2 29. Rd6 Rb8 30. Rd3 Be6 31. Kg2 Kf6 32. Kf3 Ke7 33. Ke3 Rc8 34. Kd4 Rd8+ 35. Kc3 Rxd3+ 36. Bxd3 Kd6 37. Bb5 Kc5 0-1

[Event "POL-chT U19 2nd League"]
[Site "Chelm Lubelski"]
[Date "2010.07.11"]
[Round "7"]
[White "Bruder, Adam"]
[Black "Sieczkowski, Mateusz"]
[Result "1-0"]
[ECO "C10"]
[WhiteElo "1494"]
[PlyCount "109"]
[EventDate "2010.07.06"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2011"]
[Source "ChessBase"]
[SourceDate "2010.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.26"]
[SourceQuality "1"]
[WhiteTeam "Rawicz Korona Rawbud U19"]
[BlackTeam "Radom UKS MDK U19"]
[WhiteTeamCountry "POL"]
[BlackTeamCountry "POL"]

1. e4 e6 2. d4 d5 3. Nc3 a6 4. e5 Bd7 5. Bd3 c5 6. Nf3 Qb6 7. dxc5 Bxc5 8. 0-0 Nc6 9. Na4 Qa7 10. Nxc5 Qxc5 11. Re1 Nge7 12. c3 d4 13. c4 b5 14. Qc2 Nb4 15. Qb3 Bc6 16. Nd2 Nxd3 17. Qxd3 Ng6 18. Nb3 Qxc4 19. Qxc4 bxc4 20. Nxd4 Bd5 21. Bd2 0-0 22. Bc3 Nf4 23. f3 Nd3 24. Re3 Nc5 25. Bb4 Rfc8 26. Rae1 Nd3 27. Bd6 Nxe1 28. Rxe1 c3 29. b3 Ra7 30. Rc1 Rb7 31. Ne2 f6 32. Rxc3 Rxc3 33. Nxc3 fxe5 34. Bxe5 Bc6 35. Kf2 Rd7 36. Ke3 Kf7 37. f4 Bxg2 38. Na4 Bd5 39. Nc5 Rd8 40. Nxa6 Ra8 41. Nb4 h6 42. h4 Rb8 43. Nxd5 exd5 44. f5 Ra8 45. a4 Ra6 46. Kd4 Ra5 47. Bc7 Ra7 48. Bb6 Rd7 49. a5 Re7 50. a6 Re8 51. Kxd5 Ra8 52. a7 Kf6 53. Kc6 Re8 54. Kb7 Re7+ 55. Bc7 1-0

[Event "POL-chT U19 2nd League"]
[Site "Chelm Lubelski"]
[Date "2010.07.10"]
[Round "6"]
[White "Sieczkowski, Mateusz"]
[Black "Domusa, Mateusz"]
[Result "0-1"]
[ECO "D20"]
[PlyCount "98"]
[EventDate "2010.07.06"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2011"]
[Source "ChessBase"]
[SourceDate "2010.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.26"]
[SourceQuality "1"]
[WhiteTeam "Radom UKS MDK U19"]
[BlackTeam "Bogatynia UKS SP3 U19"]
[WhiteTeamCountry "POL"]
[BlackTeamCountry "POL"]

1. d4 d5 2. c4 dxc4 3. e4 Nc6 4. Nf3 Bg4 5. d5 Ne5 6. Nbd2 Nf6 7. h3 Bh5 8. g4 Nxf3+ 9. Qxf3 Bg6 10. Bxc4 c6 11. dxc6 bxc6 12. e5 Nd5 13. a3 e6 14. Ne4 Be7 15. h4 Bxe4 16. Qxe4 Bxh4 17. Bd2 h6 18. 0-0-0 Bg5 19. f4 Bh4 20. Bb4 Be7 21. Be1 Rb8 22. Rh2 Qb6 23. Rd3 g5 24. Rb3 Qc7 25. Rxb8+ Qxb8 26. f5 exf5 27. Qxf5 Qc7 28. Rh3 Qd7 29. Qxd7+ Kxd7 30. Bxd5 cxd5 31. Bc3 Ke6 32. Kd2 f6 33. exf6 Bxf6 34. Bxf6 Kxf6 35. Kd3 Ke5 36. b4 Kf4 37. Rh1 Kxg4 38. Rg1+ Kf5 39. Kd4 h5 40. b5 h4 41. Rf1+ Ke6 42. Re1+ Kd6 43. Re5 g4 44. Rxd5+ Kc7 45. Rc5+ Kb6 46. a4 h3 47. Kc4 h2 48. Rc6+ Kb7 49. a5 h1Q 0-1

[Event "POL-chT U19 2nd League"]
[Site "Chelm Lubelski"]
[Date "2010.07.09"]
[Round "5"]
[White "Kozakow, Mikolaj"]
[Black "Sieczkowski, Mateusz"]
[Result "1-0"]
[ECO "B08"]
[WhiteElo "1548"]
[PlyCount "55"]
[EventDate "2010.07.06"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2011"]
[Source "ChessBase"]
[SourceDate "2010.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.26"]
[SourceQuality "1"]
[WhiteTeam "Warszawa UKS Czternastka U19"]
[BlackTeam "Radom UKS MDK U19"]
[WhiteTeamCountry "POL"]
[BlackTeamCountry "POL"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Nf3 Bg7 5. h3 0-0 6. Be3 Nbd7 7. Qd2 c5 8. d5 Nb6 9. Rb1 e6 10. a4 a6 11. a5 Nbd7 12. dxe6 fxe6 13. Qxd6 Re8 14. e5 Bf8 15. Qd2 Nh5 16. g4 Ng7 17. Ne4 Be7 18. Bc4 Rf8 19. Be2 Ne8 20. Bh6 Rf7 21. Nfg5 Bxg5 22. Nxg5 Nc7 23. Nxf7 Kxf7 24. Bc4 b6 25. axb6 Nb5 26. Qf4+ Ke8 27. Rd1 Nd4 28. c3 1-0

[Event "POL-chT U19 2nd League"]
[Site "Chelm Lubelski"]
[Date "2010.07.08"]
[Round "4"]
[White "Sieczkowski, Mateusz"]
[Black "Orzechowski, Michal"]
[Result "1-0"]
[ECO "D20"]
[BlackElo "1605"]
[PlyCount "35"]
[EventDate "2010.07.06"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2011"]
[Source "ChessBase"]
[SourceDate "2010.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.26"]
[SourceQuality "1"]
[WhiteTeam "Radom UKS MDK U19"]
[BlackTeam "Jastrzebie Zdroj Pionier U19"]
[WhiteTeamCountry "POL"]
[BlackTeamCountry "POL"]

1. d4 d5 2. c4 dxc4 3. e4 e6 4. Bd2 c5 5. dxc5 Bxc5 6. Qa4+ Bd7 7. Qxc4 Qb6 8. Nh3 Qxb2 9. Bc3 Qc1+ 10. Ke2 Bb6 11. Nd2 Qc2 12. Ke1 Nc6 13. Bd3 Na5 14. Bxc2 Nxc4 15. Nxc4 Bc6 16. Bxg7 Ne7 17. Bxh8 Kd7 18. Rd1+ 1-0

[Event "POL-chT U19 2nd League"]
[Site "Chelm Lubelski"]
[Date "2010.07.07"]
[Round "3"]
[White "Michalak, Augustyn"]
[Black "Sieczkowski, Mateusz"]
[Result "1/2-1/2"]
[ECO "A40"]
[PlyCount "70"]
[EventDate "2010.07.06"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2011"]
[Source "ChessBase"]
[SourceDate "2010.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.26"]
[SourceQuality "1"]
[WhiteTeam "Ostrow Wielkopolski II"]
[BlackTeam "Radom UKS MDK U19"]
[WhiteTeamCountry "POL"]
[BlackTeamCountry "POL"]

1. d4 g6 2. c4 Bg7 3. Nf3 e6 4. e3 Ne7 5. Be2 0-0 6. 0-0 d5 7. Nc3 Nd7 8. Re1 c5 9. cxd5 exd5 10. Qd2 c4 11. b3 Nb6 12. Bb2 Bf5 13. Rac1 a6 14. Qd1 Nc6 15. Ba3 Re8 16. Nd2 a5 17. bxc4 Be6 18. c5 Nd7 19. Qb3 Qc8 20. Na4 Nb4 21. Bxb4 axb4 22. Qxb4 Bf8 23. Qb3 Re7 24. Bb5 Qc7 25. Nb2 b6 26. c6 Nb8 27. a4 Ra5 28. Qd3 f5 29. f4 Re8 30. Nf3 h6 31. Kh1 Bf7 32. Ne5 Re6 33. Nd7 Nxc6 34. Nxf8 Kxf8 35. Qc3 Be8 1/2-1/2

[Event "POL-chT U19 2nd League"]
[Site "Chelm Lubelski"]
[Date "2010.07.06"]
[Round "1"]
[White "Gabryjalowicz, Jakub"]
[Black "Sieczkowski, Mateusz"]
[Result "1-0"]
[ECO "B06"]
[WhiteElo "1744"]
[PlyCount "53"]
[EventDate "2010.07.06"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]
[WhiteTeam "Grzybowo GKSz Solny U19"]
[BlackTeam "Radom UKS MDK U19"]
[WhiteTeamCountry "POL"]
[BlackTeamCountry "POL"]

1. e4 g6 2. d4 d6 3. Nc3 Bg7 4. Be3 e6 5. Qd2 Ne7 6. 0-0-0 0-0 7. h4 Nbc6 8. h5 d5 9. Bh6 dxe4 10. Bxg7 Kxg7 11. hxg6 Nf5 12. g4 e3 13. fxe3 Nh6 14. e4 Nxg4 15. Be2 Qf6 16. Bxg4 Qxg6 17. Nf3 Rh8 18. Bf5 exf5 19. Rdg1 Qxg1+ 20. Rxg1+ Kf8 21. Qh6+ Ke8 22. Qg7 Rf8 23. Nd5 Rb8 24. e5 Be6 25. Nxc7+ Ke7 26. d5 Bd7 27. Qf6# 1-0

[Event "POL-chT U19 2nd League"]
[Site "Chelm Lubelski"]
[Date "2010.07.06"]
[Round "2"]
[White "Sieczkowski, Mateusz"]
[Black "Szurek, Dagmara"]
[Result "0-1"]
[ECO "D51"]
[BlackElo "1644"]
[PlyCount "62"]
[EventDate "2010.07.06"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2011"]
[Source "ChessBase"]
[SourceDate "2010.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.26"]
[SourceQuality "1"]
[WhiteTeam "Radom UKS MDK U19"]
[BlackTeam "Rydultowy Ognisko U19"]
[WhiteTeamCountry "POL"]
[BlackTeamCountry "POL"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 c6 5. Nf3 Nbd7 6. e4 dxe4 7. Nxe4 Qa5+ 8. Nc3 Ne4 9. Bd2 Nxd2 10. Qxd2 Be7 11. Bd3 0-0 12. 0-0 e5 13. dxe5 Nxe5 14. Nxe5 Qxe5 15. Rfe1 Qg5 16. Qc2 f5 17. Re3 Bd6 18. Rh3 h6 19. Re1 Bc7 20. c5 Qd8 21. Rf3 f4 22. Bc4+ Kh8 23. Ne4 Bg4 24. Rd3 Qh4 25. Rd2 Ba5 26. Nc3 f3 27. g3 Qh5 28. a3 Bf5 29. Bd3 Bxd3 30. Qxd3 Rad8 31. Qc2 Qh3 0-1

[Event "POL-sf U11 MA+WM"]
[Site "Besia"]
[Date "2007.10.26"]
[Round "11.1"]
[White "Sieczkowski, Mateusz"]
[Black "Gorecki, Maciej"]
[Result "1/2-1/2"]
[ECO "D00"]
[PlyCount "108"]
[EventDate "2007.10.21"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 d5 2. Nc3 Nf6 3. Bf4 Bf5 4. Nb5 Na6 5. e3 c6 6. Nc3 Nb4 7. Bd3 Nxd3+ 8. cxd3 Qb6 9. Na4 Qb5 10. Nc5 b6 11. Nb3 Bxd3 12. Nc1 Bf5 13. Nge2 Qxb2 14. Nb3 e6 15. 0-0 Bc2 16. Qd2 Ne4 17. Qc1 Ba3 18. f3 Qxc1 19. Nexc1 Bb2 20. fxe4 Bxa1 21. Nxa1 Bxe4 22. Bd6 Rd8 23. Bc7 Rd7 24. Bb8 0-0 25. Bf4 c5 26. Ne2 Bd3 27. Re1 Bxe2 28. Rxe2 cxd4 29. exd4 Rc8 30. Nc2 a5 31. Na3 Rb7 32. Nb5 Rc4 33. Nd6 Rxd4 34. Nxb7 Rxf4 35. Rc2 g5 36. Nd6 d4 37. g3 Rf3 38. Ne4 h6 39. Rd2 Re3 40. Nf2 Ra3 41. Nd3 b5 42. Nc1 Rc3 43. Ne2 Rc4 44. Nxd4 Rc1+ 45. Kf2 Kg7 46. Nxb5 Kf6 47. Nd4 Rh1 48. Kg2 Re1 49. Rf2+ Ke7 50. Nc6+ Kd7 51. Nxa5 Re5 52. Nc4 Re4 53. Nd2 Ra4 54. Nb3 Kc6 1/2-1/2

[Event "POL-sf U11 MA+WM"]
[Site "Besia"]
[Date "2007.10.25"]
[Round "10.6"]
[White "Glebocki, Piotr"]
[Black "Sieczkowski, Mateusz"]
[Result "1/2-1/2"]
[ECO "C10"]
[PlyCount "104"]
[EventDate "2007.10.21"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. exd5 exd5 4. Nc3 Nf6 5. Nf3 Nc6 6. Bb5 Qe7+ 7. Qe2 Qxe2+ 8. Bxe2 Bd6 9. 0-0 0-0 10. Bg5 Ne4 11. Nxe4 dxe4 12. Nd2 Nxd4 13. Rfe1 Nxc2 14. Nxe4 Nxa1 15. Rxa1 Re8 16. Bd3 f6 17. Bh4 Bf5 18. Re1 Bb4 19. Re2 Re7 20. f3 g5 21. Bg3 Bc5+ 22. Nxc5 Rxe2 23. Bxe2 b6 24. Ne4 Bxe4 25. fxe4 Re8 26. Bd3 h5 27. Bxc7 Re7 28. Bd6 Rd7 29. Bc4+ Kg7 30. Bb8 a5 31. e5 Rd2 32. exf6+ Kxf6 33. Bg3 Rxb2 34. Be1 Rc2 35. Bb3 Rc1 36. Kf2 Rc5 37. Bd2 Rf5+ 38. Ke1 Re5+ 39. Kd1 Rf5 40. Bc3+ Ke7 41. h3 Rf1+ 42. Be1 Kf6 43. Bc4 Rf4 44. Be2 Ra4 45. Bxh5 Rxa2 46. Be2 Ra1+ 47. Kd2 Ra2+ 48. Kd1 a4 49. Bf3 Ra3 50. Bb4 Rb3 51. Bd2 a3 52. Be4 Rb2 1/2-1/2

[Event "POL-sf U11 MA+WM"]
[Site "Besia"]
[Date "2007.10.25"]
[Round "9.2"]
[White "Sieczkowski, Mateusz"]
[Black "Nowicki, Bartosz"]
[Result "0-1"]
[ECO "A81"]
[BlackElo "1686"]
[PlyCount "66"]
[EventDate "2007.10.21"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 f5 2. Nf3 Nf6 3. g3 g6 4. Bg2 Bg7 5. 0-0 0-0 6. Nc3 d6 7. Bf4 Qe8 8. Bg5 c6 9. Bxf6 Bxf6 10. d5 c5 11. Re1 Nd7 12. Nb5 Qd8 13. e4 Ne5 14. exf5 Bxf5 15. Nxe5 Bxe5 16. f4 Bxb2 17. Rb1 Bf6 18. Be4 Bxe4 19. Rxe4 a6 20. Na3 b5 21. c4 b4 22. Nc2 a5 23. Qf3 a4 24. a3 b3 25. Ne1 Rb8 26. Nd3 Qa5 27. Qg4 Qd2 28. Qe6+ Kh8 29. Nf2 Qc2 30. Ree1 Qxc4 31. Re4 Qc2 32. Ree1 Bd4 33. Rf1 Bxf2+ 0-1

[Event "POL-sf U11 MA+WM"]
[Site "Besia"]
[Date "2007.10.24"]
[Round "8.5"]
[White "Kozakow, Mikolaj"]
[Black "Sieczkowski, Mateusz"]
[Result "1-0"]
[ECO "C01"]
[PlyCount "59"]
[EventDate "2007.10.21"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. exd5 exd5 4. Be3 g6 5. Bd3 Bg7 6. Qe2 Ne7 7. c3 0-0 8. Nf3 Bf5 9. 0-0 Nbc6 10. Nbd2 a6 11. Rfe1 b5 12. a4 b4 13. c4 Bxd3 14. Qxd3 dxc4 15. Qxc4 Nf5 16. Qxc6 Nxe3 17. fxe3 a5 18. Rac1 Ra7 19. Qc5 Qb8 20. Ne5 Qb6 21. Qxb6 cxb6 22. Nc6 Rc7 23. b3 Re8 24. e4 Bh6 25. Re2 f5 26. e5 g5 27. d5 g4 28. d6 Rd7 29. Rd1 Bf4 30. Nc4 1-0

[Event "POL-sf U11 MA+WM"]
[Site "Besia"]
[Date "2007.10.24"]
[Round "7.3"]
[White "Sieczkowski, Mateusz"]
[Black "Renkowski, Piotr"]
[Result "0-1"]
[ECO "D32"]
[BlackElo "1594"]
[PlyCount "48"]
[EventDate "2007.10.21"]
[EventType "tourn"]
[EventRounds "11"]
[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. Nc3 c5 4. cxd5 cxd4 5. Nb5 Qa5+ 6. Bd2 Qxb5 7. e3 Qxd5 8. exd4 e5 9. Bc3 Nf6 10. dxe5 Qxe5+ 11. Be2 Bg4 12. f3 Be6 13. f4 Qc7 14. Nf3 Nc6 15. 0-0 Bc5+ 16. Kh1 Bb6 17. Bb5 0-0 18. Bc4 Rad8 19. Qc2 Nd4 20. Qd3 Nb5 21. Nd4 Qc5 22. Qe2 Nd5 23. Rac1 Nbxc3 24. Rxc3 Qxd4 0-1

[Event "POL-sf U11 MA+WM"]
[Site "Besia"]
[Date "2007.10.23"]
[Round "5.4"]
[White "Sieczkowski, Mateusz"]
[Black "Eggink, Mateusz"]
[Result "0-1"]
[ECO "A51"]
[BlackElo "1733"]
[PlyCount "60"]
[EventDate "2007.10.21"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e5 3. Nf3 exd4 4. Nxd4 Bc5 5. Nb3 Bb4+ 6. Bd2 Bxd2+ 7. N1xd2 0-0 8. e4 d6 9. Bd3 Nc6 10. Qc2 Re8 11. 0-0 Nb4 12. Qc3 Nxd3 13. Qxd3 b6 14. Rae1 Bb7 15. f3 Qd7 16. f4 Re7 17. Re2 Rae8 18. c5 a6 19. Rfe1 a5 20. e5 dxe5 21. Qxd7 Nxd7 22. fxe5 Rxe5 23. Nc1 Rxe2 24. Rxe2 Rxe2 25. Nxe2 Ne5 26. Kf2 Nd3+ 27. Ke3 Nxb2 28. g4 Nd1+ 29. Kf4 Nf2 30. h4 Nd3+ 0-1

[Event "POL-sf U11 MA+WM"]
[Site "Besia"]
[Date "2007.10.23"]
[Round "6.4"]
[White "Sokol, Piotr"]
[Black "Sieczkowski, Mateusz"]
[Result "1-0"]
[ECO "D30"]
[PlyCount "77"]
[EventDate "2007.10.21"]
[EventType "tourn"]
[EventRounds "11"]
[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. e3 Nf6 4. Nf3 Bd6 5. Nc3 c5 6. b3 0-0 7. Bb2 Ne4 8. Nxe4 dxe4 9. Nd2 Be7 10. Nxe4 b6 11. Ng3 Nc6 12. Be2 Bf6 13. Ne4 e5 14. d5 Ne7 15. Nxf6+ gxf6 16. Qc2 Bf5 17. Bd3 Bg6 18. 0-0-0 Nc8 19. h4 Bh5 20. f3 Nd6 21. g4 Bg6 22. h5 Bxd3 23. Qxd3 Qd7 24. Rdg1 Rae8 25. e4 b5 26. cxb5 Nxb5 27. Qd2 Nd4 28. Bxd4 cxd4 29. Kb1 Qb5 30. g5 Kh8 31. gxf6 Rg8 32. Kb2 Rc8 33. Rxg8+ Rxg8 34. Rh4 a5 35. Rg4 Rxg4 36. fxg4 a4 37. Qg5 Qe2+ 38. Ka3 Qxe4 39. Qg7# 1-0

[Event "POL-sf U11 MA+WM"]
[Site "Besia"]
[Date "2007.10.22"]
[Round "3.5"]
[White "Sieczkowski, Mateusz"]
[Black "Zaleski, Grzegorz"]
[Result "0-1"]
[ECO "D32"]
[PlyCount "68"]
[EventDate "2007.10.21"]
[EventType "tourn"]
[EventRounds "11"]
[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 c5 4. Nf3 cxd4 5. Qxd4 Nc6 6. Qd3 Nf6 7. e4 dxe4 8. Qxd8+ Kxd8 9. Bg5 exf3 10. 0-0-0+ Bd7 11. Bxf6+ gxf6 12. gxf3 Kc7 13. Nb5+ Kd8 14. Nd4 Nxd4 15. Rxd4 Bc5 16. Rd3 Kc7 17. Rg1 Rad8 18. Rg7 Kc8 19. b4 Bxb4 20. c5 Bxc5 21. Rc3 b6 22. Ba6+ Kb8 23. Rxf7 Bc8 24. Bb5 Bb7 25. Bd7 Bd5 26. Bb5 Rc8 27. Rd3 h6 28. Ba6 Rc7 29. Rxf6 Bd4+ 30. Kd1 Bxf6 31. f4 Rd8 32. Re3 Bc4+ 33. Ke1 Bxa6 34. Rxe6 Bc3# 0-1

[Event "POL-sf U11 MA+WM"]
[Site "Besia"]
[Date "2007.10.22"]
[Round "4.3"]
[White "Tarnowski, Maciej"]
[Black "Sieczkowski, Mateusz"]
[Result "1-0"]
[ECO "C00"]
[PlyCount "67"]
[EventDate "2007.10.21"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 e6 2. Nf3 g6 3. Nc3 Bg7 4. Bc4 Ne7 5. d3 d5 6. Bb3 d4 7. Ne2 e5 8. Bg5 0-0 9. 0-0 Bg4 10. Ng3 a5 11. h3 Bh5 12. Nxh5 gxh5 13. Nd2 a4 14. Bc4 h6 15. Bh4 c6 16. a3 b5 17. Ba2 Ng6 18. Bxd8 Rxd8 19. Qxh5 Rd6 20. c4 Nf4 21. Qf5 Rg6 22. Qc8+ Bf8 23. cxb5 cxb5 24. Qb7 Raa6 25. Qxb8 Kg7 26. Qxe5+ Raf6 27. Rac1 Ne2+ 28. Kh1 Bd6 29. Qe8 Nxc1 30. Rxc1 Rxf2 31. Nf3 Rgxg2 32. Qxf7+ Kh8 33. Rc8+ Rg8 34. Rxg8# 1-0

[Event "POL-sf U11 MA+WM"]
[Site "Besia"]
[Date "2007.10.21"]
[Round "1.6"]
[White "Sieczkowski, Mateusz"]
[Black "Jarmula, Pawel"]
[Result "1-0"]
[ECO "E40"]
[PlyCount "57"]
[EventDate "2007.10.21"]
[EventType "tourn"]
[EventRounds "11"]
[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 Ne4 5. Nge2 Nxc3 6. Nxc3 Bxc3+ 7. bxc3 b6 8. Bd3 Bb7 9. 0-0 d5 10. c5 c6 11. Rb1 b5 12. a4 a6 13. e4 dxe4 14. Bxe4 Qd7 15. a5 Qe7 16. Qd3 h6 17. Bf4 Nd7 18. d5 cxd5 19. Bd6 dxe4 20. Qe2 Qf6 21. c4 Bc6 22. Qd2 Qg6 23. g3 bxc4 24. Rb6 Nxb6 25. cxb6 Rd8 26. Qd4 Qf6 27. Qc5 Qf5 28. Qxc6+ Rd7 29. b7 1-0

[Event "POL-sf U11 MA+WM"]
[Site "Besia"]
[Date "2007.10.21"]
[Round "2.2"]
[White "Wyszomirski, Krzysztof"]
[Black "Sieczkowski, Mateusz"]
[Result "1-0"]
[ECO "B01"]
[WhiteElo "1713"]
[PlyCount "59"]
[EventDate "2007.10.21"]
[EventType "tourn"]
[EventRounds "11"]
[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 Qd8 4. Be2 g6 5. Nf3 Bg7 6. 0-0 Nf6 7. d3 Nc6 8. Bf4 0-0 9. Qd2 e5 10. Nxe5 Nd5 11. Nxc6 Bxc3 12. bxc3 bxc6 13. Bg3 Qf6 14. c4 Nc3 15. Bf3 Re8 16. Rfe1 Re7 17. d4 Rxe1+ 18. Qxe1 Qxd4 19. Be5 Qc5 20. Qxc3 Bd7 21. Bd4 Qg5 22. h3 Bxh3 23. Bf6 Qh6 24. gxh3 Qxh3 25. Bxc6 Re8 26. Qg3 Qxg3+ 27. fxg3 Re6 28. Bd4 Rxc6 29. c5 Re6 30. Kf2 1-0

