[Event "Mazowiec-chT 1718"]
[Site "Warsaw"]
[Date "2018.02.18"]
[Round "8.1"]
[White "Myc, Marcin"]
[Black "Niedzwiecki, Marek"]
[Result "1-0"]
[ECO "D15"]
[WhiteElo "2283"]
[BlackElo "1632"]
[PlyCount "37"]
[EventDate "2017.12.03"]
[EventType "team-tourn"]
[EventRounds "10"]
[EventCountry "POL"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Nf3 Bg4 5. Ne5 Nbd7 6. Nxg4 Nxg4 7. cxd5 cxd5 8. Nxd5 e6 9. Nc3 Bb4 10. e3 h5 11. h3 Ngf6 12. Qb3 Nd5 13. Bd2 Qa5 14. Bb5 Rc8 15. Rc1 Ke7 16. Nxd5+ Kd8 17. Rxc8+ Kxc8 18. Bxb4 Qxb5 19. Qc3+ 1-0

[Event "Mazowiec-chT 1718"]
[Site "Warsaw"]
[Date "2018.02.18"]
[Round "7.1"]
[White "Niedzwiecki, Marek"]
[Black "Staroszczyk, Mateusz"]
[Result "0-1"]
[ECO "B41"]
[WhiteElo "1632"]
[BlackElo "1968"]
[PlyCount "116"]
[EventDate "2017.12.03"]
[EventType "team-tourn"]
[EventRounds "10"]
[EventCountry "POL"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. a4 Bc5 6. c3 Ne7 7. b4 Ba7 8. Be2 0-0 9. 0-0 Qc7 10. b5 d5 11. exd5 Nxd5 12. Qb3 Nxc3 13. Nxc3 Bxd4 14. Bb2 Rd8 15. Rac1 Qb6 16. Ne4 Bxb2 17. Qxb2 axb5 18. axb5 Ra4 19. Qc2 Rad4 20. Ng5 g6 21. Qc7 Nd7 22. Rc3 h6 23. Nf3 Rd5 24. Qf4 g5 25. Qb4 Nf6 26. Rfc1 Bd7 27. Qe7 Ne4 28. Rc7 Qxf2+ 29. Kh1 Be8 30. Ng1 Qxe2 31. Qxe8+ Rxe8 32. Nxe2 Rxb5 33. Rf1 Rf5 34. Rb1 b5 35. Nd4 Rd5 36. Nc6 Kg7 37. h3 Rc5 38. Rf1 Nd6 39. Rd1 Rd5 40. Rf1 Nf5 41. Kh2 Rd2 42. Ne5 Rf8 43. Nd7 Ra8 44. Ne5 Raa2 45. Rg1 Nd6 46. Nf3 Rf2 47. Ne1 Rad2 48. Rc5 b4 49. Kh1 Ne4 50. Rb5 Rd4 51. Nf3 Rc4 52. Ne5 Rc5 53. Rxc5 Nxc5 54. Rb1 b3 55. Kg1 Rc2 56. Kh2 b2 57. Nf3 Nd3 58. Nd4 Rc1 0-1

[Event "Mazowiec-chT 1718"]
[Site "Warsaw"]
[Date "2018.02.04"]
[Round "6.5"]
[White "Niedzwiecki, Marek"]
[Black "Chomczyk, Marek"]
[Result "0-1"]
[ECO "C67"]
[WhiteElo "1632"]
[BlackElo "2188"]
[PlyCount "120"]
[EventDate "2017.12.03"]
[EventType "team-tourn"]
[EventRounds "10"]
[EventCountry "POL"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. 0-0 Nxe4 5. Re1 Nd6 6. Nxe5 Be7 7. Bxc6 dxc6 8. Qe2 Be6 9. Nc3 Nf5 10. d3 Nd4 11. Qd1 0-0 12. Be3 Bf6 13. f4 Bh4 14. g3 Be7 15. Ne2 Bc5 16. c3 Nf3+ 17. Nxf3 Bxe3+ 18. Kg2 Bb6 19. d4 Qd5 20. Neg1 Rfe8 21. Re5 Qd7 22. Qd3 f6 23. Re3 c5 24. Rae1 Bf7 25. b3 cxd4 26. Rxe8+ Rxe8 27. Rxe8+ Bxe8 28. Nxd4 c5 29. Qc4+ Bf7 30. Qb5 Bd5+ 31. Ngf3 Qxb5 32. Nxb5 c4 33. b4 Be3 34. Na3 a6 35. g4 Bxf4 36. Kf2 Bc1 37. Nc2 Bb2 38. Ne3 Bxf3 39. Kxf3 Bxc3 40. Nxc4 Bxb4 41. a3 Bc5 42. a4 b5 43. axb5 axb5 44. Nd2 Kf7 45. Nb3 Bb6 46. Ke4 Ke6 47. h4 g6 48. Nc1 h5 49. gxh5 gxh5 50. Nd3 f5+ 51. Kf3 Bc7 52. Nb4 Bd6 53. Nd3 b4 54. Ke2 Kd5 55. Kd2 Kd4 56. Nb2 b3 57. Na4 f4 58. Ke2 Ba3 59. Kf3 Bc1 60. Ke2 b2 0-1

[Event "Mazowiec-chT 1718"]
[Site "Warsaw"]
[Date "2018.02.04"]
[Round "5.6"]
[White "Szwaj, Jacek"]
[Black "Niedzwiecki, Marek"]
[Result "1-0"]
[ECO "C78"]
[WhiteElo "1897"]
[BlackElo "1632"]
[PlyCount "120"]
[EventDate "2017.12.03"]
[EventType "team-tourn"]
[EventRounds "10"]
[EventCountry "POL"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 b5 6. Bb3 h6 7. c3 d6 8. d4 Be7 9. Be3 Bg4 10. Nbd2 0-0 11. h3 Bh5 12. Re1 Na5 13. Bc2 Nd7 14. b4 Nb7 15. d5 Qc8 16. g4 Bg6 17. Nf1 c6 18. Ng3 cxd5 19. Qxd5 Nf6 20. Qb3 Qc6 21. Nh4 Bh7 22. Nhf5 Bd8 23. Rad1 a5 24. a3 Rc8 25. Bd2 a4 26. Qa2 Kh8 27. Bd3 Ne8 28. Rc1 Bg8 29. Be3 f6 30. Qd2 Bc4 31. Bxh6 gxh6 32. Qxh6+ Kg8 33. Qg6+ Kh8 34. Qh5+ Kg8 35. Nh6+ Kh8 36. Ngf5 Ng7 37. Nxg7 Qc7 38. Ngf5 Qh7 39. Re3 Bb6 40. Rg3 Rcd8 41. Bxc4 bxc4 42. Rd1 Rd7 43. Rd5 Bc7 44. h4 Nd8 45. g5 fxg5 46. hxg5 Rxf5 47. exf5 Nf7 48. Kg2 Nxh6 49. Qe8+ Ng8 50. Rh3 Qxh3+ 51. Kxh3 Re7 52. Qg6 Rg7 53. Qe6 Rxg5 54. Rb5 Rh5+ 55. Kg2 Rh6 56. Qxc4 Bd8 57. Rb8 Rh7 58. Rxd8 Rg7+ 59. Kf3 Kh7 60. Rxg8 Rxg8 1-0

[Event "Mazowiec-chT 1718"]
[Site "Warsaw"]
[Date "2017.12.03"]
[Round "1.2"]
[White "Praczukowski, Stanislaw"]
[Black "Niedzwiecki, Marek"]
[Result "1-0"]
[ECO "E01"]
[WhiteElo "2121"]
[BlackElo "1632"]
[PlyCount "99"]
[EventDate "2017.12.03"]
[EventType "team-tourn"]
[EventRounds "10"]
[EventCountry "POL"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. g3 c6 4. Bg2 d5 5. Nf3 Bb4+ 6. Bd2 Qa5 7. a3 Bxd2+ 8. Qxd2 Qxd2+ 9. Nbxd2 a5 10. Ne5 Nbd7 11. e4 Nxe5 12. dxe5 Ng4 13. exd5 cxd5 14. cxd5 Nxe5 15. 0-0 0-0 16. f4 Ng4 17. Rfe1 Ra6 18. Nc4 exd5 19. Bxd5 Nf6 20. Bf3 b5 21. Ne5 b4 22. axb4 axb4 23. Rxa6 Bxa6 24. Ra1 Bc8 25. Ra4 b3 26. Rb4 Be6 27. Nc6 g6 28. Nd4 Bh3 29. Rxb3 Re8 30. Kf2 Ne4+ 31. Bxe4 Rxe4 32. Rd3 Bg4 33. b4 Be6 34. Nxe6 Rxe6 35. b5 Rb6 36. Rb3 Kf8 37. Ke3 Ke7 38. Kd4 Kd6 39. Kc4 Kc7 40. Re3 Rf6 41. Kc5 Rf5+ 42. Re5 Rf6 43. Re7+ Kd8 44. Ra7 Kc8 45. b6 Rf5+ 46. Kc6 Rf6+ 47. Kb5 Rf5+ 48. Ka6 Rh5 49. Rxf7 Rxh2 50. b7+ 1-0

[Event "Mazowiec-chT op 1617"]
[Site "Warsaw"]
[Date "2017.02.05"]
[Round "9.10"]
[White "Niedzwiecki, Marek"]
[Black "Sternik, Piotr"]
[Result "0-1"]
[ECO "B22"]
[WhiteElo "1742"]
[BlackElo "1317"]
[PlyCount "76"]
[EventDate "2016.12.11"]
[EventType "team-swiss"]
[EventRounds "10"]
[EventCountry "POL"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 c5 2. c3 d6 3. d4 cxd4 4. cxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. Nf3 0-0 8. Be2 Nc6 9. 0-0 Bd7 10. Qd2 Ng4 11. Bf4 e5 12. dxe5 dxe5 13. Bg5 f6 14. Bc4+ Kh8 15. h3 fxg5 16. hxg4 Bf6 17. Nh2 Nd4 18. Ne2 Bc6 19. Bd3 Bd7 20. f3 Qb6 21. Kh1 Rad8 22. Qe3 Bb5 23. Rfd1 Bxd3 24. Rxd3 Qxb2 25. Re1 Nxe2 26. Rxd8 Ng3+ 27. Kg1 Rxd8 28. Nf1 Nxf1 29. Kxf1 Qb5+ 30. Kf2 Rd3 31. Qxa7 Qb2+ 32. Kg3 Qd2 33. Rb1 Qf4+ 34. Kh3 h5 35. Qb8+ Rd8 36. Qxb7 hxg4+ 37. fxg4 Rd3+ 38. g3 Qxg3# 0-1

[Event "Mazowiec-chT op 1617"]
[Site "Warsaw"]
[Date "2017.02.05"]
[Round "10.10"]
[White "Sternik, Piotr"]
[Black "Niedzwiecki, Marek"]
[Result "0-1"]
[ECO "D12"]
[WhiteElo "1317"]
[BlackElo "1742"]
[PlyCount "74"]
[EventDate "2016.12.11"]
[EventType "team-swiss"]
[EventRounds "10"]
[EventCountry "POL"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Nf3 Bf5 5. e3 e6 6. Bd2 Nbd7 7. c5 Qc7 8. b4 Be7 9. b5 e5 10. h3 0-0 11. Be2 Ne4 12. 0-0 Nxc3 13. Bxc3 e4 14. Nd2 Bf6 15. Qc2 b6 16. a4 cxb5 17. axb5 bxc5 18. Ba5 Qd6 19. dxc5 Qxc5 20. Rac1 Qxc2 21. Rxc2 d4 22. Rc7 Bd8 23. Rxd7 Bxd7 24. Bb4 Re8 25. Nxe4 Rxe4 26. Bf3 Bf5 27. exd4 Rb8 28. Bxe4 Bxe4 29. Re1 f5 30. f3 Bh4 31. Rc1 Bd3 32. Bd6 Rxb5 33. Rc8+ Kf7 34. Be5 Rb7 35. d5 Bf6 36. Bc7 Ba6 37. d6 Rb1+ 0-1

[Event "Mazowiec-chT op 1617"]
[Site "Warsaw"]
[Date "2017.01.29"]
[Round "8.10"]
[White "Adamowicz, Michal"]
[Black "Niedzwiecki, Marek"]
[Result "1-0"]
[ECO "C24"]
[BlackElo "1742"]
[PlyCount "90"]
[EventDate "2016.12.11"]
[EventType "team-swiss"]
[EventRounds "10"]
[EventCountry "POL"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 e5 2. Bc4 Nf6 3. d3 d5 4. exd5 Nxd5 5. Nf3 Qd6 6. Be3 Be7 7. Nbd2 Nxe3 8. fxe3 Bf5 9. 0-0 0-0 10. Qe1 Nd7 11. Nh4 Be6 12. Nf5 Bxf5 13. Rxf5 Qg6 14. e4 b5 15. Bb3 Qb6+ 16. Kh1 Qd4 17. Nf3 Qd6 18. Qg3 Bf6 19. Rf1 Rae8 20. h4 Nc5 21. Ng5 Nxb3 22. Rxf6 Qe7 23. cxb3 Kh8 24. Rxf7 Rxf7 25. Rxf7 Qd6 26. Nf3 Qh6 27. Qxe5 Rg8 28. Qxc7 Qc1+ 29. Kh2 Qxb2 30. Ng5 Qc1 31. Rxg7 Rxg7 32. Qd8+ Rg8 33. Qf6+ Rg7 34. Nf7+ Kg8 35. Nh6+ Qxh6 36. Qxh6 Rg6 37. Qe3 a5 38. h5 Rc6 39. Qf4 Rc2 40. h6 a4 41. Qf6 Rc7 42. Qd8+ Kf7 43. Qxc7+ Kg6 44. bxa4 bxa4 45. Qc6+ Kh5 1-0

[Event "Mazowiec-chT op 1617"]
[Site "Warsaw"]
[Date "2017.01.29"]
[Round "7.10"]
[White "Niedzwiecki, Marek"]
[Black "Adamowicz, Michal"]
[Result "1-0"]
[ECO "C65"]
[WhiteElo "1742"]
[PlyCount "43"]
[EventDate "2016.12.11"]
[EventType "team-swiss"]
[EventRounds "10"]
[EventCountry "POL"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. 0-0 Bc5 5. Bxc6 dxc6 6. Nxe5 0-0 7. d3 Re8 8. Nf3 Bg4 9. h3 Bh5 10. Bg5 Qd6 11. Nbd2 Nd7 12. Nc4 Qg3 13. Be3 Bxe3 14. fxe3 b5 15. Ncd2 Re6 16. Qe1 Qd6 17. Nd4 Ree8 18. Qg3 Qf6 19. Nf5 Qg6 20. Qxc7 Nf6 21. Ne7+ Rxe7 22. Qxe7 1-0

[Event "Mazowiec-chT op 1617"]
[Site "Warsaw"]
[Date "2017.01.15"]
[Round "6.10"]
[White "Kosny, Marek"]
[Black "Niedzwiecki, Marek"]
[Result "1-0"]
[ECO "D15"]
[WhiteElo "1842"]
[BlackElo "1742"]
[PlyCount "135"]
[EventDate "2016.12.11"]
[EventType "team-swiss"]
[EventRounds "10"]
[EventCountry "POL"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 d5 3. d4 c6 4. Nc3 Bf5 5. g3 dxc4 6. Bg2 Nbd7 7. a4 a5 8. Nh4 e6 9. Nxf5 exf5 10. Qc2 g6 11. 0-0 Bg7 12. Bg5 0-0 13. d5 h6 14. Bxf6 Qxf6 15. dxc6 bxc6 16. Nd1 Nb6 17. Rc1 Rac8 18. Ne3 Rfd8 19. Nxc4 Nxc4 20. Qxc4 Rd4 21. Qa6 Qe6 22. Qxa5 Qxe2 23. Rxc6 Rcd8 24. Qa6 Qxb2 25. Rc8 Qb4 26. a5 Kh7 27. Rxd8 Rxd8 28. Qb6 Qd2 29. a6 Rd6 30. Qb7 Rd7 31. Qb5 Ra7 32. Bb7 Bd4 33. Qb3 Kg7 34. Kg2 f4 35. Qf3 fxg3 36. hxg3 Qa2 37. Rd1 Qb2 38. Qf4 Be5 39. Qe3 Rxb7 40. axb7 Qxb7+ 41. Qf3 Qxf3+ 42. Kxf3 h5 43. Rd7 Bc3 44. Rc7 Ba5 45. Rb7 Be1 46. Ke2 Bc3 47. f3 Bf6 48. f4 g5 49. Kf3 h4 50. gxh4 gxf4 51. Kg4 Be5 52. Kf5 Bd6 53. h5 f3 54. h6+ Kg8 55. Rb3 f2 56. Rf3 Bc5 57. Kf6 Bd4+ 58. Kg5 Be3+ 59. Kh5 Bc5 60. Kg4 f6 61. Kh5 Kh7 62. Rf5 Be3 63. Rxf6 f1Q 64. Rxf1 Bxh6 65. Rf7+ Bg7 66. Kg5 Kh8 67. Kg6 Bf8 68. Rxf8# 1-0

[Event "Mazowiec-chT op 1617"]
[Site "Warsaw"]
[Date "2017.01.15"]
[Round "5.10"]
[White "Niedzwiecki, Marek"]
[Black "Kosny, Marek"]
[Result "0-1"]
[ECO "B02"]
[WhiteElo "1742"]
[BlackElo "1842"]
[PlyCount "80"]
[EventDate "2016.12.11"]
[EventType "team-swiss"]
[EventRounds "10"]
[EventCountry "POL"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 Nf6 2. Nc3 d5 3. e5 d4 4. exf6 dxc3 5. fxg7 cxd2+ 6. Bxd2 Bxg7 7. c3 Nc6 8. Qf3 Bd7 9. Qg3 Be5 10. Bf4 Bxf4 11. Qxf4 e5 12. Qf3 Qe7 13. Bd3 0-0-0 14. 0-0-0 f5 15. Qe3 Rhg8 16. g3 Qf7 17. b3 Be6 18. Kb2 Bd5 19. f3 Kb8 20. Ne2 Qf6 21. Rhf1 h5 22. Qc5 Ne7 23. Kc2 Rd6 24. c4 Be6 25. Nc3 a6 26. Rfe1 Nc6 27. Ne2 b6 28. Qa3 a5 29. Kb1 Nb4 30. Nc1 h4 31. gxh4 Rg2 32. c5 Rd4 33. cxb6 cxb6 34. Qa4 Bd7 35. Bb5 e4 36. Rxd4 Qxd4 37. Ne2 Qd2 38. Rg1 Rxg1+ 39. Nxg1 Qc2+ 40. Ka1 Qc1# 0-1

[Event "Mazowiec-chT op 1617"]
[Site "Warsaw"]
[Date "2017.01.08"]
[Round "4.14"]
[White "Jedynak, January"]
[Black "Niedzwiecki, Marek"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "1749"]
[BlackElo "1742"]
[PlyCount "68"]
[EventDate "2016.12.11"]
[EventType "team-swiss"]
[EventRounds "10"]
[EventCountry "POL"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. Bf4 c6 4. c3 Qb6 5. Qb3 Qd8 6. e3 a5 7. a4 e6 8. Nbd2 Be7 9. h3 0-0 10. Bd3 Nbd7 11. 0-0 b6 12. Ne5 c5 13. Nc6 Qe8 14. Bb5 c4 15. Qc2 Ba6 16. Bh2 g6 17. e4 Kg7 18. exd5 Nxd5 19. Nxc4 Bxb5 20. axb5 Rc8 21. Bd6 Ra8 22. Bxe7 Rh8 23. Nd6 Qg8 24. Bh4 Qf8 25. Bg3 h5 26. c4 Nc7 27. Nxf7 Qxf7 28. Bxc7 h4 29. Ne5 Nxe5 30. Bxe5+ Kh7 31. Bxh8 Rxh8 32. Qe4 Qf6 33. Rae1 Re8 34. Qe5 Qf7 1-0

[Event "Mazowiec-chT op 1617"]
[Site "Warsaw"]
[Date "2017.01.08"]
[Round "3.2"]
[White "Rozycki, Wojciech"]
[Black "Niedzwiecki, Marek"]
[Result "0-1"]
[ECO "C50"]
[WhiteElo "1354"]
[BlackElo "1742"]
[PlyCount "40"]
[EventDate "2016.12.11"]
[EventType "team-swiss"]
[EventRounds "10"]
[EventCountry "POL"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Be7 4. d4 d6 5. Be3 Nf6 6. Nbd2 Bg4 7. h3 Bxf3 8. Nxf3 Nxe4 9. Bd5 Ng5 10. Bxc6+ bxc6 11. dxe5 0-0 12. Bf4 Rb8 13. b3 Ne6 14. Qd2 Nxf4 15. Qxf4 dxe5 16. Qxe5 Bf6 17. Rd1 Bxe5 18. Rxd8 Rbxd8 19. Nxe5 Rfe8 20. f4 f6 0-1

[Event "Mazowiec-chT op 1617"]
[Site "Warsaw"]
[Date "2016.12.11"]
[Round "1.18"]
[White "Bialecki, Jakub"]
[Black "Niedzwiecki, Marek"]
[Result "0-1"]
[ECO "C68"]
[WhiteElo "1095"]
[BlackElo "1742"]
[PlyCount "68"]
[EventDate "2016.12.11"]
[EventType "team-swiss"]
[EventRounds "10"]
[EventCountry "POL"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. h3 Nf6 6. d3 Bd6 7. d4 Qe7 8. Bg5 Qe6 9. Nc3 Nd7 10. d5 cxd5 11. Nxd5 f6 12. Be3 b5 13. b4 c6 14. Nb6 Bxb4+ 15. Nd2 Nxb6 16. Bxb6 c5 17. a3 Bxd2+ 18. Qxd2 Qxb6 19. Qd5 Bb7 20. Qb3 Bxe4 21. 0-0 c4 22. Qb4 a5 23. Qd2 Rd8 24. Qe2 Bb7 25. Qh5+ Ke7 26. Rad1 Be4 27. Qg4 Bg6 28. Kh1 Rd4 29. f4 Rhd8 30. Rde1 Kf7 31. Rxe5 fxe5 32. fxe5+ Kg8 33. Qf3 Qe6 34. Qb7 Rd1 0-1

[Event "Mazowiec-chT op 1617"]
[Site "Warsaw"]
[Date "2016.12.11"]
[Round "2.2"]
[White "Niedzwiecki, Marek"]
[Black "Stojke, Krzysztof"]
[Result "1-0"]
[ECO "C01"]
[WhiteElo "1742"]
[BlackElo "1518"]
[PlyCount "67"]
[EventDate "2016.12.11"]
[EventType "team-swiss"]
[EventRounds "10"]
[EventCountry "POL"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. exd5 exd5 4. Nf3 Bf5 5. Bd3 Bxd3 6. Qxd3 Nf6 7. 0-0 Be7 8. Qb5+ Nbd7 9. Qxb7 0-0 10. Nc3 Nb6 11. Bg5 h6 12. Bh4 a6 13. a4 g5 14. Bg3 Bd6 15. b3 Qd7 16. Ne5 Qf5 17. Nd3 Bxg3 18. hxg3 Qc8 19. Qxc8 Rfxc8 20. a5 Nbd7 21. b4 c6 22. f3 Re8 23. Rfe1 h5 24. Kf2 Kg7 25. Na4 Rxe1 26. Rxe1 Re8 27. Nac5 Nb8 28. Ne5 Re7 29. c3 Re8 30. Nb7 Nfd7 31. Nd6 Re6 32. Ndxf7 Nxe5 33. Nxe5 Kf6 34. Rh1 1-0

[Event "Mazowiec-chT op 1516"]
[Site "Poland"]
[Date "2016.02.21"]
[Round "10.9"]
[White "Niedzwiecki, Marek"]
[Black "Seliga, Mariusz"]
[Result "1-0"]
[ECO "D38"]
[PlyCount "75"]
[EventDate "2015.11.29"]
[EventType "team-tourn"]
[EventRounds "10"]
[EventCountry "POL"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. c4 e6 2. Nc3 Nf6 3. Nf3 d5 4. d4 Bb4 5. cxd5 exd5 6. Bd2 0-0 7. e3 Bg4 8. Be2 c5 9. dxc5 Bxc5 10. Na4 Bb6 11. Qb3 Nc6 12. Nxb6 axb6 13. 0-0 Ne4 14. Rad1 Re8 15. h3 Bh5 16. a3 d4 17. g4 Bg6 18. Bb5 Nxd2 19. Rxd2 Ne5 20. Nh2 Nc6 21. Nf3 Na5 22. Qd1 Re7 23. Nxd4 Qc7 24. Bd3 Nc6 25. Nb5 Qe5 26. Bxg6 hxg6 27. Nd4 Nxd4 28. Rxd4 Qg5 29. Rd8+ Re8 30. Rxa8 Rxa8 31. Qb3 Qh4 32. Kh2 Kh7 33. Qxb6 f5 34. Qxb7 fxg4 35. Qxa8 Qxh3+ 36. Kg1 g3 37. Qh1 gxf2+ 38. Rxf2 1-0

[Event "Mazowiec-chT op 1516"]
[Site "Poland"]
[Date "2016.02.21"]
[Round "9.1"]
[White "Szustakowski, Antoni"]
[Black "Niedzwiecki, Marek"]
[Result "1/2-1/2"]
[ECO "B25"]
[WhiteElo "2057"]
[PlyCount "68"]
[EventDate "2015.11.29"]
[EventType "team-tourn"]
[EventRounds "10"]
[EventCountry "POL"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. f4 d6 6. d3 e5 7. Nf3 Nge7 8. 0-0 0-0 9. Be3 b6 10. Qd2 f5 11. Nh4 Rb8 12. Nd1 Qc7 13. h3 Bf6 14. Nf3 Bd7 15. c3 Rbd8 16. Nf2 Bc8 17. g4 d5 18. exd5 Nxd5 19. fxe5 Nxe3 20. Qxe3 Nxe5 21. gxf5 Bxf5 22. Nxe5 Qxe5 23. Qxe5 Bxe5 24. Be4 Bxe4 25. dxe4 Rd2 26. Ng4 Bg7 27. Rxf8+ Kxf8 28. Rf1+ Ke7 29. Rf2 Rxf2 30. Kxf2 Ke6 31. Kf3 Be5 32. a4 a6 33. Ne3 b5 34. axb5 axb5 1/2-1/2

[Event "Mazowiec-chT op 1516"]
[Site "Poland"]
[Date "2016.01.24"]
[Round "7.12"]
[White "Niedzwiecki, Marek"]
[Black "Koziol, Pawel"]
[Result "0-1"]
[ECO "E61"]
[BlackElo "1872"]
[PlyCount "60"]
[EventDate "2015.11.29"]
[EventType "team-tourn"]
[EventRounds "10"]
[EventCountry "POL"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 g6 3. d4 Bg7 4. Nf3 0-0 5. Bg5 d6 6. g3 Nc6 7. d5 Na5 8. Qd3 c5 9. e4 a6 10. Rb1 Rb8 11. b4 cxb4 12. Rxb4 Bg4 13. Nd2 Nd7 14. Na4 Ne5 15. Qa3 Naxc4 16. Bxc4 Nxc4 17. Nxc4 b5 18. 0-0 Be2 19. Rfb1 Bxc4 20. Nb2 a5 21. Bxe7 axb4 22. Qa7 Qb6 23. Qxb6 Rxb6 24. Bxf8 Kxf8 25. a4 Bxb2 26. a5 Ra6 27. Rxb2 b3 28. f4 Rxa5 29. h4 Ra1+ 30. Kf2 Ra2 0-1

[Event "Mazowiec-chT op 1516"]
[Site "Poland"]
[Date "2016.01.24"]
[Round "8.9"]
[White "Sokolowski, Krzysztof"]
[Black "Niedzwiecki, Marek"]
[Result "0-1"]
[ECO "E81"]
[WhiteElo "1940"]
[PlyCount "92"]
[EventDate "2015.11.29"]
[EventType "team-tourn"]
[EventRounds "10"]
[EventCountry "POL"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 d6 3. Nc3 g6 4. e4 Bg7 5. f3 0-0 6. Bg5 c5 7. d5 Bd7 8. Qd2 Qa5 9. h4 h5 10. Nh3 a6 11. Bh6 b5 12. Bxg7 Kxg7 13. Be2 bxc4 14. Nf2 Rh8 15. g4 Qd8 16. 0-0-0 Qc8 17. Rdg1 a5 18. Qg5 e5 19. dxe6 Bxe6 20. gxh5 Rxh5 21. Qg3 Nc6 22. f4 Rh6 23. f5 Nd4 24. Bd1 Bxf5 25. exf5 Qxf5 26. Ng4 Rhh8 27. Nxf6 Qxf6 28. h5 a4 29. hxg6 fxg6 30. Rf1 Nf5 31. Qf3 a3 32. Qb7+ Qe7 33. Qxe7+ Nxe7 34. Rxh8 axb2+ 35. Kxb2 Rxh8 36. a4 Nc6 37. Be2 Rh2 38. Kc1 Nb4 39. Kd2 d5 40. Ke1 d4 41. Ne4 Nc2+ 42. Kd2 d3 43. Nc3 Nd4 44. a5 Nxe2 45. Ra1 Nxc3+ 46. Ke3 d2 0-1

[Event "Mazowiec-chT op 1516"]
[Site "Poland"]
[Date "2016.01.10"]
[Round "5.1"]
[White "Niedzwiecki, Marek"]
[Black "Ceglowski, Ryszard"]
[Result "0-1"]
[ECO "E91"]
[BlackElo "1795"]
[PlyCount "46"]
[EventDate "2015.11.29"]
[EventType "team-tourn"]
[EventRounds "10"]
[EventCountry "POL"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 g6 3. Nf3 Bg7 4. e4 d6 5. d4 0-0 6. Be2 Nbd7 7. 0-0 c5 8. Be3 Ng4 9. Bf4 Qb6 10. Nd5 Qd8 11. Rb1 cxd4 12. Nxd4 Ngf6 13. f3 e5 14. Bg5 exd4 15. Qxd4 h6 16. Be3 Ng4 17. Qd2 Nxe3 18. Nxe3 Qb6 19. Kh1 Nf6 20. Rfd1 Be6 21. Qc1 h5 22. b4 Bh6 23. Qa3 Qxe3 0-1

[Event "Mazowiec-chT op 1516"]
[Site "Poland"]
[Date "2015.12.13"]
[Round "3.13"]
[White "Melchers, Damian"]
[Black "Niedzwiecki, Marek"]
[Result "1-0"]
[ECO "B07"]
[WhiteElo "1953"]
[PlyCount "117"]
[EventDate "2015.11.29"]
[EventType "team-tourn"]
[EventRounds "10"]
[EventCountry "POL"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 d6 2. f4 g6 3. Nc3 Bg7 4. Nf3 Bg4 5. h3 Bd7 6. Bc4 e5 7. d3 Nc6 8. a4 Nd4 9. 0-0 Be6 10. Bxe6 fxe6 11. fxe5 dxe5 12. Ng5 Bf6 13. Nf3 Qd7 14. Be3 a6 15. b4 b6 16. Ne2 0-0-0 17. Nc1 Bg7 18. Ng5 Nf6 19. c3 h6 20. cxd4 exd4 21. Nxe6 Qxe6 22. Bf4 Nh5 23. Bh2 Rdf8 24. Rxf8+ Rxf8 25. b5 a5 26. Ne2 Be5 27. Rc1 Bxh2+ 28. Kxh2 Qe5+ 29. Kg1 Nf4 30. Nxf4 Qxf4 31. Qg4+ Qxg4 32. hxg4 Rf4 33. g5 h5 34. Rc6 Rg4 35. Rxg6 Kd7 36. Kf2 Ke7 37. Rg7+ Kd6 38. g6 Rf4+ 39. Ke2 Rg4 40. Kf3 c6 41. bxc6 Kxc6 42. Rg8 Kc5 43. g7 Kb4 44. e5 Rg6 45. Ke4 Kxa4 46. Kf5 Rxg2 47. e6 Rf2+ 48. Kg6 Re2 49. Kf7 Rf2+ 50. Ke7 Rg2 51. Kd8 Rg6 52. e7 Rd6+ 53. Kc7 Re6 54. e8Q+ Rxe8 55. Rxe8 b5 56. g8Q b4 57. Qa2+ Kb5 58. Re5+ Ka6 59. Rxa5# 1-0

[Event "Mazowiec-chT op 1516"]
[Site "Poland"]
[Date "2015.12.13"]
[Round "4.13"]
[White "Niedzwiecki, Marek"]
[Black "Olsztynski, Andrzej"]
[Result "1-0"]
[ECO "A39"]
[BlackElo "1461"]
[PlyCount "93"]
[EventDate "2015.11.29"]
[EventType "team-tourn"]
[EventRounds "10"]
[EventCountry "POL"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. c4 c5 2. Nc3 Nc6 3. Nf3 Nf6 4. d4 cxd4 5. Nxd4 d6 6. g3 g6 7. Bg2 Nxd4 8. Qxd4 Bg7 9. 0-0 0-0 10. Bg5 Qa5 11. Qd2 Re8 12. Rab1 Bf5 13. b4 Qc7 14. e4 Be6 15. Nd5 Nxd5 16. cxd5 Bd7 17. Rfc1 Qd8 18. b5 b6 19. Bf1 Bg4 20. h3 Bd7 21. Rc2 f6 22. Be3 Rc8 23. Rbc1 Rxc2 24. Qxc2 Qc8 25. Qc7 Bxh3 26. Qxa7 Qg4 27. Qxb6 Bxf1 28. Kxf1 Qxe4 29. Qd4 Qh1+ 30. Ke2 Qh2 31. Qe4 Ra8 32. a4 Qh5+ 33. g4 Qe5 34. Qxe5 fxe5 35. Ra1 e4 36. Ra2 Bc3 37. Bd2 Bd4 38. a5 h5 39. gxh5 gxh5 40. Ra4 Bc5 41. Rxe4 Kf7 42. b6 Ke8 43. b7 Rb8 44. a6 Kd7 45. Be3 Kc7 46. Bxc5 dxc5 47. a7 1-0

[Event "Mazowiec-chT op 1516"]
[Site "Poland"]
[Date "2015.11.29"]
[Round "2.1"]
[White "Laszczak, Przemyslaw"]
[Black "Niedzwiecki, Marek"]
[Result "1-0"]
[ECO "A42"]
[WhiteElo "1948"]
[PlyCount "78"]
[EventDate "2015.11.29"]
[EventType "team-tourn"]
[EventRounds "10"]
[EventCountry "POL"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. d4 g6 2. c4 d6 3. Nc3 Bg7 4. e4 e5 5. dxe5 Bxe5 6. f4 Bxc3+ 7. bxc3 Nf6 8. Bd3 Qe7 9. Qe2 Bg4 10. Nf3 Nbd7 11. 0-0 Nc5 12. Re1 0-0 13. Ba3 Na4 14. e5 Ne8 15. Qc2 Qd7 16. Rad1 c5 17. Be2 Bf5 18. Qb3 Qc6 19. exd6 Nxd6 20. Ne5 Qa6 21. Rxd6 Qxd6 22. Qxa4 Qd2 23. Nf3 Qe3+ 24. Kh1 Be4 25. Bd1 Qxf4 26. Bxc5 Bc6 27. Qc2 Rfd8 28. Bd4 b6 29. Qd2 Qd6 30. Qh6 f6 31. Bb3 Kh8 32. Ng5 Rd7 33. Re6 Bxg2+ 34. Kxg2 Qa3 35. Bxf6+ Kg8 36. c5 Rd2+ 37. Re2+ Qxb3 38. axb3 Rxe2+ 39. Kf3 Rxh2 1-0

[Event "Mazowiec-chT op 1516"]
[Site "Poland"]
[Date "2015.11.29"]
[Round "1.5"]
[White "Niedzwiecki, Marek"]
[Black "Praczukowski, Stanislaw"]
[Result "0-1"]
[ECO "A28"]
[BlackElo "2038"]
[PlyCount "88"]
[EventDate "2015.11.29"]
[EventType "team-tourn"]
[EventRounds "10"]
[EventCountry "POL"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. d4 e4 5. Ne5 Bb4 6. Bg5 h6 7. Bh4 Qe7 8. Bg3 Nh5 9. a3 Nxg3 10. Nxc6 dxc6 11. hxg3 Bxc3+ 12. bxc3 e3 13. f3 Qd6 14. f4 Qg6 15. Qd3 Qxg3+ 16. Kd1 Qxf4 17. g4 Bxg4 18. d5 Bf5 19. Qd4 Qxd4+ 20. cxd4 cxd5 21. cxd5 0-0-0 22. Bg2 Rhe8 23. Rf1 g6 24. Rf4 Rd6 25. a4 a5 26. Ke1 Rb6 27. Kf1 Re7 28. Kg1 Rb1+ 29. Rf1 Rxa1 30. Rxa1 Be4 31. Bh3+ f5 32. Rc1 Rd7 33. Rc3 Rxd5 34. Rxe3 Rxd4 35. Rg3 g5 36. Ra3 h5 37. Kf2 g4 38. Bf1 Bc6 39. Kg3 f4+ 40. Kh4 Rd1 41. Kxh5 Rxf1 42. Kxg4 f3 43. exf3 Rxf3 44. Rxf3 Bxf3+ 0-1

