[Event "Hannover Bezirks op"]
[Site "Hannover"]
[Date "2020.02.29"]
[Round "3.9"]
[White "Serreck, Uwe"]
[Black "Piotrowski, Jan"]
[Result "1-0"]
[ECO "C45"]
[WhiteElo "1890"]
[BlackElo "1187"]
[PlyCount "103"]
[EventDate "2020.01.25"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[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. Nxd4 Nf6 5. Nxc6 bxc6 6. e5 Qe7 7. Qe2 Nd5 8. c4 Nb6 9. b3 d6 10. Bb2 Be6 11. exd6 cxd6 12. g3 f6 13. Bg2 Bd7 14. Qxe7+ Bxe7 15. Nc3 0-0 16. 0-0 Rac8 17. Ba3 Rfe8 18. Rad1 c5 19. Rd2 Bc6 20. Rfd1 Bxg2 21. Kxg2 a6 22. Ne4 d5 23. cxd5 f5 24. Nc3 Bf6 25. Na4 Nxa4 26. bxa4 Bd4 27. Bb2 Bxb2 28. Rxb2 c4 29. Kf3 c3 30. Rc2 Re4 31. d6 Rec4 32. d7 Rd8 33. Rd3 Rc7 34. Rcxc3 Rcxd7 35. Rxd7 Rxd7 36. Rc6 Rd3+ 37. Kf4 Rd4+ 38. Kxf5 Rxa4 39. Rc8+ Kf7 40. Rc7+ Ke8 41. Rxg7 Rxa2 42. f4 Rxh2 43. Ra7 Rh6 44. g4 Kf8 45. g5 Rb6 46. Rxh7 a5 47. Ra7 Rb5+ 48. Kg4 Rd5 49. f5 Rd4+ 50. Kh5 a4 51. Kg6 Rd6+ 52. f6 1-0

[Event "Hannover Bezirks op"]
[Site "Hannover"]
[Date "2020.01.25"]
[Round "1.8"]
[White "Piotrowski, Jan"]
[Black "Iavitch, Evgenij"]
[Result "0-1"]
[ECO "C41"]
[WhiteElo "1187"]
[BlackElo "1663"]
[PlyCount "120"]
[EventDate "2020.01.25"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 d6 3. Nc3 Nf6 4. d4 exd4 5. Nxd4 Bd7 6. Bg5 Be7 7. Bxf6 Bxf6 8. Bc4 Nc6 9. Nxc6 Bxc3+ 10. bxc3 Bxc6 11. Qd3 0-0 12. 0-0 Qf6 13. Rfe1 Rad8 14. Qd4 Qxd4 15. cxd4 Rfe8 16. f3 Re7 17. d5 Bd7 18. Rab1 b6 19. Bb5 Bxb5 20. Rxb5 f5 21. Rb4 Rde8 22. Kf2 Kf7 23. a4 Kf6 24. g4 fxg4 25. fxg4 Ke5 26. Kg3 Rf8 27. c3 Rf4 28. Rc4 Ref7 29. Re3 a5 30. h3 g5 31. Re1 Rf3+ 32. Kg2 Rf2+ 33. Kg1 h6 34. Rb1 Re2 35. Rf1 Rxf1+ 36. Kxf1 Rxe4 37. Rxc7 Kxd5 38. Rh7 Re6 39. Rb7 Kc6 40. Rh7 d5 41. Rh8 Kc5 42. Rc8+ Rc6 43. Rh8 Kc4 44. Rd8 Kb3 45. Rxd5 Kxa4 46. Rd4+ Kb3 47. Rd1 a4 48. Rb1+ Ka2 49. Rb4 a3 50. Ke2 Rxc3 51. Rxb6 Rxh3 52. Kf2 Ka1 53. Kg2 Rh4 54. Kg3 a2 55. Kf3 Rh2 56. Kg3 Rb2 57. Rxh6 Kb1 58. Rh1+ Kc2 59. Ra1 Rb3+ 60. Kf2 Kb2 0-1

[Event "Hannover Bezirks op"]
[Site "Hannover"]
[Date "2019.05.11"]
[Round "7.11"]
[White "Piotrowski, Jan"]
[Black "Lick, Helmut"]
[Result "1-0"]
[ECO "B95"]
[WhiteElo "1456"]
[BlackElo "1574"]
[PlyCount "41"]
[EventDate "2019.01.19"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bd3 e6 7. Bg5 Be7 8. 0-0 Nc6 9. Nxc6 bxc6 10. Be3 0-0 11. Be2 e5 12. f4 Qc7 13. f5 Bb7 14. Bf3 Rad8 15. Na4 c5 16. c4 Nxe4 17. Bxe4 Bxe4 18. Qg4 Bxf5 19. Qxf5 Qc6 20. Nc3 g6 21. Qf3 1-0

[Event "Hannover Bezirks op"]
[Site "Hannover"]
[Date "2019.04.27"]
[Round "6.11"]
[White "Pirker, Franz"]
[Black "Piotrowski, Jan"]
[Result "1-0"]
[ECO "C45"]
[WhiteElo "1196"]
[BlackElo "1456"]
[PlyCount "43"]
[EventDate "2019.01.19"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[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. Nxd4 Bb4+ 5. c3 Ba5 6. Bc4 Nxd4 7. Qxd4 f6 8. Qd5 Qe7 9. Qxa5 Qxe4+ 10. Be2 Qxg2 11. Rf1 b6 12. Qb4 Ne7 13. Nd2 Qxh2 14. Nf3 Qh3 15. Rg1 g6 16. Qe4 Rb8 17. Qf4 Nd5 18. Qh2 Qxh2 19. Nxh2 f5 20. Bh6 Nf4 21. Bxf4 d6 22. 0-0-0 1-0

[Event "Hannover Bezirks op"]
[Site "Hannover"]
[Date "2019.04.06"]
[Round "5.11"]
[White "Piotrowski, Jan"]
[Black "Schmerse, Joachim"]
[Result "0-1"]
[ECO "C47"]
[WhiteElo "1456"]
[BlackElo "1566"]
[PlyCount "146"]
[EventDate "2019.01.19"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 d6 2. Nf3 e5 3. d3 Nf6 4. Nc3 Be7 5. Be2 Nc6 6. 0-0 a6 7. Be3 b5 8. a3 Bb7 9. Qd2 h6 10. Nh4 Bc8 11. Nf5 Bxf5 12. exf5 Qd7 13. Ne4 Qxf5 14. Nxf6+ Bxf6 15. Bf3 Qd7 16. Rfe1 0-0 17. c3 Rad8 18. h3 Ne7 19. Qc2 c6 20. c4 d5 21. Bb6 Rb8 22. Bc5 Rfe8 23. Rad1 bxc4 24. dxc4 e4 25. Bg4 Qc7 26. b3 Qe5 27. Bxe7 Rxe7 28. cxd5 cxd5 29. b4 d4 30. Bf3 e3 31. fxe3 dxe3 32. Rd5 Qc3 33. Qxc3 Bxc3 34. Red1 e2 35. Bxe2 Rxe2 36. Rf1 Re1 37. Rxe1 Bxe1 38. Kf1 Bc3 39. Rd6 Ra8 40. Rc6 Bb2 41. a4 Rb8 42. Rxa6 Rxb4 43. Ra8+ Kh7 44. a5 Bd4 45. Ke2 f6 46. a6 Ra4 47. Kf3 Kg6 48. Rd8 Bb6 49. Ra8 h5 50. Ke2 Kf5 51. Kd3 Ra2 52. Kc4 Rxg2 53. Kb5 Rb2+ 54. Kc6 Bf2 55. Rg8 g5 56. Kd5 Ra2 57. Rh8 Rxa6 58. Rxh5 Bh4 59. Rh8 Ra3 60. Kd4 Rxh3 61. Ra8 Bg3 62. Ke3 Be5+ 63. Kf2 Rd3 64. Ra5 Kf4 65. Ra4+ Rd4 66. Ra3 g4 67. Kg2 Rd2+ 68. Kf1 f5 69. Ke1 Rb2 70. Rd3 g3 71. Rxg3 Kxg3 72. Kd1 Kg2 73. Kc1 f4 0-1

[Event "Hannover Bezirks op"]
[Site "Hannover"]
[Date "2019.03.23"]
[Round "4.9"]
[White "Bartel, Reinhard"]
[Black "Piotrowski, Jan"]
[Result "1-0"]
[ECO "C84"]
[WhiteElo "1549"]
[BlackElo "1456"]
[PlyCount "81"]
[EventDate "2019.01.19"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[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 a6 4. Ba4 Nf6 5. 0-0 d6 6. d3 b5 7. Bb3 Be7 8. h3 0-0 9. Be3 Na5 10. Nbd2 Nxb3 11. Nxb3 c5 12. Nbd2 Be6 13. Ng5 h6 14. Nxe6 fxe6 15. f4 exf4 16. Rxf4 Nd7 17. Qg4 Rxf4 18. Bxf4 Bg5 19. Qxe6+ Kh8 20. Qxd6 Bxf4 21. Qxf4 Qb6 22. Qe3 Qf6 23. c3 Ne5 24. Rf1 Qb6 25. Rf5 Nxd3 26. Qxd3 c4+ 27. Qd4 Qa5 28. Rf7 Rg8 29. a3 Qa4 30. Nf3 Qc2 31. e5 Qg6 32. Qf4 Rd8 33. Nd4 a5 34. e6 Rd5 35. e7 Rg5 36. e8Q+ Kh7 37. Qfe4 Rxg2+ 38. Qxg2 b4 39. Qxg6+ Kxg6 40. Qe6+ Kg5 41. Qg4# 1-0

[Event "Hannover Bezirks op"]
[Site "Hannover"]
[Date "2019.01.19"]
[Round "1.12"]
[White "Piotrowski, Jan"]
[Black "Juerke, Uwe"]
[Result "0-1"]
[ECO "B08"]
[WhiteElo "1456"]
[BlackElo "1764"]
[PlyCount "92"]
[EventDate "2019.01.19"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Nf3 Bg7 5. Bd3 0-0 6. 0-0 Bg4 7. e5 dxe5 8. dxe5 Nd5 9. Be2 Nxc3 10. bxc3 Nc6 11. Rb1 Qxd1 12. Rxd1 Nxe5 13. Rxb7 Nxf3+ 14. Bxf3 Bxf3 15. gxf3 Be5 16. Ba3 Rfb8 17. Rb3 Bd6 18. Bc1 a5 19. a4 Rxb3 20. cxb3 Rb8 21. b4 axb4 22. cxb4 Rxb4 23. Ba3 Rxa4 24. Bxd6 exd6 25. Rc1 c5 26. Rb1 c4 27. Kf1 Kg7 28. Ke2 Kf6 29. Ke3 Ra5 30. Kd4 Rc5 31. Rb6 Ke6 32. Kc3 Rf5 33. Kxc4 Rxf3 34. Rb2 d5+ 35. Kc5 Rc3+ 36. Kd4 Rc4+ 37. Kd3 h5 38. f3 g5 39. Re2+ Kf5 40. Re7 f6 41. Rd7 Ke6 42. Rh7 Rh4 43. Ra7 Rxh2 44. Ke3 Rb2 45. Kd4 Rb4+ 46. Ke3 h4 0-1

[Event "Hannover Bezirks op"]
[Site "Hannover"]
[Date "2018.05.05"]
[Round "7.11"]
[White "Piotrowski, Jan"]
[Black "Lick, Helmut"]
[Result "0-1"]
[ECO "C55"]
[WhiteElo "1456"]
[BlackElo "1593"]
[PlyCount "110"]
[EventDate "2018.01.27"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Nc3 Be7 5. d4 exd4 6. Nxd4 Ne5 7. Be2 d6 8. Bg5 c6 9. 0-0 Qc7 10. Nf3 Be6 11. Nxe5 dxe5 12. Bxf6 Rd8 13. Qc1 Bxf6 14. Rd1 0-0 15. Rxd8 Rxd8 16. Bd3 Rd4 17. Qf1 b5 18. Ne2 Rd8 19. b3 g6 20. Rd1 a6 21. h3 c5 22. c3 c4 23. bxc4 Bxc4 24. Bxc4 Rxd1 25. Qxd1 Qxc4 26. Qc2 b4 27. Kf1 a5 28. Ke1 Be7 29. f3 bxc3 30. Qb3 Qxb3 31. axb3 Kf8 32. Nc1 Bb4 33. Kd1 Ke7 34. Kc2 Kd6 35. Nd3 f6 36. g3 g5 37. f4 exf4 38. gxf4 gxf4 39. Nxf4 Ke5 40. Nh5 f5 41. exf5 Kxf5 42. Ng3+ Kf4 43. Nh5+ Kg5 44. Ng7 Kh4 45. Ne6 h6 46. Nf4 Kg3 47. Nd3 Kxh3 48. Kd1 Kg3 49. Ke2 h5 50. Ne1 h4 51. Kf1 h3 52. Kg1 h2+ 53. Kh1 Kf2 54. Nc2 Ke2 55. Kxh2 Kd2 0-1

[Event "Hannover Bezirks op"]
[Site "Hannover"]
[Date "2018.04.21"]
[Round "6.10"]
[White "Glaschak, Joachim"]
[Black "Piotrowski, Jan"]
[Result "1-0"]
[ECO "E61"]
[WhiteElo "1433"]
[BlackElo "1456"]
[PlyCount "117"]
[EventDate "2018.01.27"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Bf4 Bg7 4. e3 0-0 5. h3 d6 6. Nf3 Nbd7 7. Nc3 c5 8. d5 Qb6 9. Qc2 Re8 10. e4 Nh5 11. Bd2 e5 12. Be2 Nhf6 13. 0-0 Qc7 14. Nb5 Qb8 15. Nh2 a6 16. Nc3 Nb6 17. b3 Bd7 18. Qd3 h6 19. g4 Nh7 20. f3 f6 21. Rf2 Rf8 22. Be3 Qc7 23. f4 Rae8 24. f5 g5 25. Qd2 Nc8 26. Nf3 b5 27. h4 bxc4 28. hxg5 fxg5 29. Bxc4 a5 30. Nb5 Bxb5 31. Bxb5 Rd8 32. Rg2 Na7 33. Bc4 Qb6 34. a4 Ra8 35. Kf2 Nf6 36. Qd3 Rab8 37. Rh1 Nh7 38. Rgh2 Qd8 39. Kg3 Kf7 40. Qd2 Nf6 41. Qd3 Rh8 42. Qc2 Qb6 43. Rh3 Rbf8 44. R1h2 Qb4 45. Bd2 Qb6 46. Bd3 Rb8 47. Bc4 Rbf8 48. Bc3 Ra8 49. Qd3 Qc7 50. Nd2 Rh7 51. Bxe5 Qe7 52. Bb2 Rah8 53. e5 Ng8 54. f6 Nxf6 55. exf6 Bxf6 56. Rf2 Qe1 57. Bxf6 Qg1+ 58. Kf3 Rf8 59. Qxh7+ 1-0

[Event "Hannover Bezirks op"]
[Site "Hannover"]
[Date "2018.04.07"]
[Round "5.9"]
[White "Piotrowski, Jan"]
[Black "Braun, Alexander"]
[Result "0-1"]
[ECO "B08"]
[WhiteElo "1456"]
[BlackElo "1754"]
[PlyCount "72"]
[EventDate "2018.01.27"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. Nc3 Nf6 5. Bd3 0-0 6. Be3 e5 7. d5 Ng4 8. Bg5 f6 9. Bh4 a6 10. h3 Nh6 11. g4 Nf7 12. Qd2 Bh6 13. Qe2 Bf4 14. Bg3 g5 15. Bxf4 exf4 16. 0-0-0 Re8 17. Rdg1 Nd7 18. h4 Nfe5 19. Nxe5 Nxe5 20. f3 c5 21. dxc6 bxc6 22. hxg5 fxg5 23. Rh5 Ra7 24. Rgh1 Rg7 25. Rxh7 Rxh7 26. Rxh7 Kxh7 27. Bxa6 Be6 28. Bd3 Kg7 29. b3 Qb6 30. Kb2 Qe3 31. Qh2 Nxd3+ 32. cxd3 Rh8 33. Qg2 Qxd3 34. e5 d5 35. Na4 c5 36. Nxc5 Qd4+ 0-1

[Event "Hannover Bezirks op"]
[Site "Hannover"]
[Date "2018.03.17"]
[Round "4.10"]
[White "Piotrowski, Jan"]
[Black "Floerchinger, Ludolf"]
[Result "1/2-1/2"]
[ECO "B00"]
[WhiteElo "1456"]
[BlackElo "1550"]
[PlyCount "83"]
[EventDate "2018.01.27"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 Nc6 2. Nf3 f5 3. Nc3 fxe4 4. Nxe4 d5 5. Nc5 e5 6. Nb3 a6 7. d3 Nf6 8. Bg5 Be7 9. Bxf6 Bxf6 10. c3 0-0 11. Be2 Qe7 12. 0-0 Bg4 13. Re1 Qf7 14. Qc2 Bf5 15. Qd2 Qg6 16. Bf1 e4 17. dxe4 Bxe4 18. Nfd4 Ne5 19. Nc5 b6 20. Nxe4 dxe4 21. Qe3 c5 22. Ne6 Nf3+ 23. Kh1 Nxe1 24. Qxe1 Rf7 25. Bc4 Kh8 26. Nf4 Qf5 27. Bxf7 Qxf4 28. Bd5 Re8 29. Qe2 a5 30. Qb5 Rb8 31. Qe2 Re8 32. Qb5 Rf8 33. Rf1 Be5 34. g3 Qf5 35. Bb3 e3 36. f3 Qh3 37. f4 Bf6 38. Qe2 h5 39. Bd5 Qf5 40. Bf3 g6 41. Kg2 Re8 42. Rd1 1/2-1/2

[Event "Hannover Bezirks op"]
[Site "Hannover"]
[Date "2018.03.03"]
[Round "3.8"]
[White "Zucker, Stefan"]
[Black "Piotrowski, Jan"]
[Result "1-0"]
[ECO "C84"]
[WhiteElo "1877"]
[BlackElo "1456"]
[PlyCount "65"]
[EventDate "2018.01.27"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Be7 5. 0-0 b5 6. Bb3 Nf6 7. d4 exd4 8. e5 Ng4 9. Qe2 d6 10. Bd5 Bd7 11. exd6 cxd6 12. Re1 0-0 13. Bxc6 Bxc6 14. Qxe7 Qb6 15. Qh4 Bd7 16. h3 Ne5 17. Nxe5 dxe5 18. Rxe5 Rae8 19. Bf4 Qa5 20. Rxe8 Rxe8 21. Nd2 Bf5 22. Nb3 Qb6 23. Qg3 Bxc2 24. Be5 Bg6 25. Bxd4 Qd8 26. Qc3 f6 27. Re1 Rxe1+ 28. Qxe1 h6 29. Qe6+ Bf7 30. Qe3 Bxb3 31. Qxb3+ Kf8 32. Bc5+ Ke8 33. Qe6+ 1-0

[Event "Hannover Bezirk-ch A"]
[Site "Lehrte"]
[Date "2017.10.31"]
[Round "7.4"]
[White "Schmerse, Joachim"]
[Black "Piotrowski, Jan"]
[Result "1-0"]
[ECO "A24"]
[WhiteElo "1566"]
[BlackElo "1456"]
[PlyCount "99"]
[EventDate "2017.10.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. c4 e5 2. g3 Nf6 3. d3 g6 4. Bg2 Bg7 5. Nc3 d6 6. Nf3 Be6 7. Ng5 c6 8. Nxe6 fxe6 9. 0-0 0-0 10. Qc2 d5 11. b3 Nbd7 12. Bb2 Qc7 13. e3 d4 14. Ne4 Nxe4 15. Bxe4 dxe3 16. fxe3 Rxf1+ 17. Rxf1 Rf8 18. Bf3 Qb6 19. Qe2 Bh6 20. Bc1 Nc5 21. d4 Nd7 22. Bb2 Bg7 23. Qd2 Qc7 24. Kg2 exd4 25. exd4 Rd8 26. Qe2 Nf8 27. Rd1 e5 28. d5 Kh8 29. Be4 Qa5 30. Bc1 Rd6 31. Bg5 cxd5 32. Bxd5 Qc7 33. Rf1 Rd7 34. Bf6 Bxf6 35. Rxf6 Kg7 36. Qf2 Rxd5 37. cxd5 Qd7 38. Rxf8 Qxd5+ 39. Rf3 e4 40. Re3 b6 41. Qe2 a5 42. Rxe4 b5 43. h3 Qc6 44. Kh2 Kg8 45. Re8+ Kg7 46. Qe5+ Kh6 47. h4 a4 48. Re7 Qc2+ 49. Kh3 Qc8+ 50. g4 1-0

[Event "Hannover Bezirk-ch A"]
[Site "Lehrte"]
[Date "2017.10.30"]
[Round "5.2"]
[White "Piotrowski, Jan"]
[Black "Daehn, Patrick"]
[Result "0-1"]
[ECO "C50"]
[WhiteElo "1456"]
[BlackElo "1406"]
[PlyCount "96"]
[EventDate "2017.10.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 d6 4. Nc3 Be6 5. Bb3 Nge7 6. d4 Bxb3 7. axb3 exd4 8. Nxd4 Qd7 9. Nxc6 Nxc6 10. Bf4 f5 11. Qe2 fxe4 12. Qxe4+ Be7 13. Bg5 0-0 14. Bxe7 Rae8 15. 0-0 Rxe7 16. Qc4+ Qe6 17. Qh4 Rf6 18. Rad1 Rh6 19. Qg3 Rg6 20. Qh4 Ne5 21. Qe4 Qh3 22. Qd5+ Kh8 23. Rd3 Nxd3 24. cxd3 Re5 25. Qxb7 h6 26. g3 Rh5 27. Qg2 Qxg2+ 28. Kxg2 Ra5 29. Re1 d5 30. Re5 Rb6 31. Rxd5 Rxd5 32. Nxd5 Rxb3 33. Nxc7 Rxd3 34. b4 Rd7 35. Na6 Rb7 36. h4 Rb6 37. b5 Rxb5 38. f4 Rb6 39. Nc7 a5 40. Nd5 Rb2+ 41. Kf3 a4 42. Kg4 a3 43. Ne7 a2 44. f5 Rb6 45. Kh5 a1Q 46. g4 Qf6 47. Ng6+ Kh7 48. Nf4 Rb5 0-1

[Event "Hannover Bezirk-ch A"]
[Site "Lehrte"]
[Date "2017.10.30"]
[Round "6.4"]
[White "Stieber, Daniela"]
[Black "Piotrowski, Jan"]
[Result "1/2-1/2"]
[ECO "D02"]
[WhiteElo "1441"]
[BlackElo "1456"]
[PlyCount "51"]
[EventDate "2017.10.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. Bf4 e6 4. e3 c5 5. Bb5+ Bd7 6. Bxd7+ Nbxd7 7. 0-0 cxd4 8. Qxd4 Be7 9. c4 0-0 10. Nc3 dxc4 11. Qxc4 Nb6 12. Qb5 Qd7 13. Qe2 Rfd8 14. Rfd1 Qe8 15. Nd4 Nbd5 16. Nxd5 Nxd5 17. Be5 Bf6 18. Bxf6 Nxf6 19. Nb5 Rxd1+ 20. Rxd1 Qc6 21. Nc3 a6 22. Rd4 b5 23. Qd3 g6 24. a3 Rb8 25. Rd6 Qc4 26. Rd8+ 1/2-1/2

[Event "Hannover Bezirk-ch A"]
[Site "Lehrte"]
[Date "2017.10.29"]
[Round "3.8"]
[White "Ahmadi, Abbas"]
[Black "Piotrowski, Jan"]
[Result "0-1"]
[ECO "C50"]
[BlackElo "1456"]
[PlyCount "87"]
[EventDate "2017.10.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. 0-0 Nf6 5. Nc3 d6 6. d3 Bg4 7. Bg5 h6 8. Bxf6 Qxf6 9. Nd5 Qd8 10. b4 Nxb4 11. Qd2 Bxf3 12. gxf3 Nxd5 13. Bxd5 c6 14. Bb3 Qg5+ 15. Qxg5 hxg5 16. Kh1 f6 17. c3 0-0-0 18. Be6+ Kb8 19. Bf5 d5 20. Rad1 dxe4 21. fxe4 Rh6 22. Rd2 g6 23. Bg4 Rf8 24. h3 f5 25. d4 exd4 26. cxd4 Bb6 27. exf5 gxf5 28. Bd1 Rxh3+ 29. Kg2 g4 30. Rh1 Rxh1 31. Kxh1 Rd8 32. Kg2 Rxd4 33. Rxd4 Bxd4 34. Kg3 Kc7 35. Kf4 Bxf2 36. Kxf5 Kd6 37. Kxg4 Kd5 38. a4 Be1 39. Be2 Kd4 40. Kf3 c5 41. Bb5 c4 42. Bc6 bxc6 43. Ke2 Bb4 44. Kf3 0-1

[Event "Hannover Bezirk-ch A"]
[Site "Lehrte"]
[Date "2017.10.29"]
[Round "4.5"]
[White "Piotrowski, Jan"]
[Black "Rust Bulmahn, Kornelia"]
[Result "1-0"]
[ECO "C55"]
[WhiteElo "1456"]
[BlackElo "969"]
[PlyCount "101"]
[EventDate "2017.10.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Nc3 a6 5. d3 h6 6. Be3 Bb4 7. a3 Bxc3+ 8. bxc3 d6 9. h3 0-0 10. d4 b5 11. Bd3 Bd7 12. 0-0 Re8 13. d5 Na5 14. a4 Nc4 15. axb5 Nxe3 16. fxe3 Bxb5 17. Nd2 Bxd3 18. cxd3 Qd7 19. c4 c6 20. Qa4 cxd5 21. Qxd7 Nxd7 22. exd5 Nc5 23. d4 exd4 24. exd4 Nd3 25. Rfb1 Re2 26. Nf3 Nf4 27. Nh4 g5 28. Nf5 Rxg2+ 29. Kh1 Re2 30. Nxh6+ Kh7 31. Nxf7 Nxh3 32. Nxd6 Nf2+ 33. Kg1 Ne4 34. Rb7+ Kg6 35. Rb6 Nxd6 36. Rxd6+ Kf5 37. Rf1+ Kg4 38. Rdf6 Re4 39. Rd1 a5 40. d6 Rf4 41. Re6 a4 42. c5 a3 43. d7 Rf7 44. c6 a2 45. Ra1 Kf5 46. Re2 Kf6 47. Re8 Rf8 48. Rxf8+ Rxf8 49. c7 Ke6 50. c8Q Ke7 51. Qxf8+ 1-0

[Event "Hannover Bezirk-ch A"]
[Site "Lehrte"]
[Date "2017.10.28"]
[Round "1.6"]
[White "Lossin, Charlotte"]
[Black "Piotrowski, Jan"]
[Result "1/2-1/2"]
[ECO "D60"]
[WhiteElo "1496"]
[BlackElo "1456"]
[PlyCount "58"]
[EventDate "2017.10.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 Nbd7 6. Bd3 c5 7. Nf3 0-0 8. 0-0 cxd4 9. Nxd4 dxc4 10. Bxc4 Nb6 11. Bb3 Re8 12. Qc2 Nfd5 13. Bxe7 Rxe7 14. Rfd1 a6 15. Nf3 Rd7 16. Ne5 Nb4 17. Rxd7 Nxd7 18. Qe4 Nxe5 19. Qxe5 Nc6 20. Qe4 Qe7 21. Rd1 Bd7 22. Bc2 g6 23. Qf3 Rb8 24. Ne4 f5 25. Nd6 Ne5 26. Qg3 Qf6 27. f4 Nf7 28. Nc4 Rd8 29. e4 Bb5 1/2-1/2

[Event "Hannover Bezirk-ch A"]
[Site "Lehrte"]
[Date "2017.10.28"]
[Round "2.7"]
[White "Piotrowski, Jan"]
[Black "Kirch, Christopher"]
[Result "1/2-1/2"]
[ECO "C50"]
[WhiteElo "1456"]
[BlackElo "1311"]
[PlyCount "59"]
[EventDate "2017.10.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. Nc3 Nf6 5. d3 h6 6. Be3 Bb6 7. d4 exd4 8. Nxd4 Nxd4 9. Bxd4 d6 10. Bxb6 axb6 11. h3 0-0 12. 0-0 Bd7 13. Re1 Qc8 14. Re3 Re8 15. Qd2 Ra5 16. Rae1 Rg5 17. Rg3 Rxg3 18. fxg3 Bc6 19. Qf4 Qd7 20. Re3 Re7 21. Nd5 Bxd5 22. Bxd5 Nxd5 23. exd5 Kf8 24. Rxe7 Qxe7 25. Kf2 Qe5 26. Qxe5 dxe5 27. c4 Ke7 28. Ke3 f5 29. b4 Kd6 30. a4 1/2-1/2

[Event "Daehne Cup Region 16/17 qual V+"]
[Site "Hannover"]
[Date "2017.07.27"]
[Round "5"]
[White "Floerchinger, Ludolf"]
[Black "Piotrowski, Jan"]
[Result "1-0"]
[ECO "C29"]
[WhiteElo "1553"]
[BlackElo "1172"]
[PlyCount "65"]
[EventDate "2017.07.13"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 e5 2. Nc3 Nf6 3. f4 d5 4. fxe5 Nxe4 5. Nf3 Nxc3 6. bxc3 Be7 7. d4 0-0 8. Bd3 Nd7 9. 0-0 c5 10. Ba3 c4 11. Bxe7 Qxe7 12. Be2 f6 13. Rb1 a6 14. Re1 b5 15. exf6 Qxf6 16. Rf1 Qe7 17. Qd2 Bb7 18. Rbe1 Qd6 19. Bd1 Rae8 20. Rxe8 Rxe8 21. Re1 Rxe1+ 22. Qxe1 Qf8 23. Ne5 Nxe5 24. Qxe5 Qd8 25. Bf3 Kf8 26. Qf5+ Kg8 27. Qe6+ Kf8 28. Qe5 Kg8 29. g3 a5 30. a3 Kf8 31. Bg4 g6 32. Qh8+ Ke7 33. Qxh7+ 1-0

[Event "Daehne Cup Region 16/17 qual V+"]
[Site "Hannover"]
[Date "2017.07.20"]
[Round "4"]
[White "Piotrowski, Jan"]
[Black "Fenge, Hilmar"]
[Result "1-0"]
[ECO "B01"]
[WhiteElo "1172"]
[BlackElo "1034"]
[PlyCount "123"]
[EventDate "2017.07.13"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Nf6 3. d4 Nxd5 4. c4 Nb4 5. Nf3 Bf5 6. Qa4+ N4c6 7. Na3 b5 8. Qd1 bxc4 9. Bxc4 e6 10. Bb5 a6 11. Bxc6+ Nxc6 12. 0-0 Qd7 13. Ne5 Nxe5 14. dxe5 Rd8 15. Bg5 Qxd1 16. Raxd1 Be7 17. Rxd8+ Bxd8 18. Bxd8 Kxd8 19. Rd1+ Ke7 20. Nc4 f6 21. f4 Bg6 22. Rd2 f5 23. Kf2 Be8 24. b4 Rg8 25. a3 g5 26. g3 gxf4 27. gxf4 Bb5 28. Ne3 Rd8 29. Rxd8 Kxd8 30. Nc2 Kd7 31. Ke3 Ba4 32. Nd4 Bc6 33. Kd3 Bb5+ 34. Kc3 h6 35. Kb3 h5 36. a4 Bc6 37. b5 axb5 38. axb5 Bd5+ 39. Kb4 Bb7 40. Kc5 h4 41. Nb3 Bd5 42. Na5 Bf3 43. b6 cxb6+ 44. Kxb6 Ke7 45. Nc6+ Kf7 46. Nd8+ Ke7 47. Kc7 Bd5 48. Nc6+ Bxc6 49. Kxc6 h3 50. Kc7 Ke8 51. Kd6 Kf7 52. Kd7 Kg6 53. Kxe6 Kg7 54. Kxf5 Kf7 55. Kg4 Ke6 56. Kxh3 Kf5 57. Kh4 Ke6 58. Kg5 Kd5 59. Kf6 Ke4 60. f5 Kd5 61. e6 Kd6 62. h4 1-0

[Event "Daehne Cup Region 16/17 qual V+"]
[Site "Hannover"]
[Date "2017.07.06"]
[Round "2"]
[White "Reinecke, Gunther"]
[Black "Piotrowski, Jan"]
[Result "1-0"]
[ECO "D64"]
[BlackElo "1172"]
[PlyCount "53"]
[EventDate "2017.07.13"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 c6 5. e3 Be7 6. Nf3 Nbd7 7. Rc1 0-0 8. a3 Re8 9. Qc2 c5 10. Bd3 cxd4 11. exd4 dxc4 12. Bxc4 Nb6 13. Ba2 Nbd5 14. Bb1 Nxc3 15. Qxc3 Nd5 16. Qd2 Bxg5 17. Nxg5 g6 18. h4 e5 19. h5 Nf4 20. Nxh7 exd4+ 21. Kf1 Nxh5 22. Qh6 d3 23. Rxh5 Qd6 24. Ng5 Qf6 25. Rc7 d2 26. Qh7+ Kf8 27. Rxf7+ 1-0

[Event "Daehne Cup Region 16/17 qual V"]
[Site "Hannover"]
[Date "2017.06.29"]
[Round "1"]
[White "Piotrowski, Jan"]
[Black "Meier, Detlef"]
[Result "0-1"]
[ECO "C01"]
[WhiteElo "1172"]
[BlackElo "1665"]
[PlyCount "50"]
[EventDate "2017.06.29"]
[EventType "k.o."]
[EventRounds "5"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. exd5 exd5 4. Nf3 Nf6 5. Nc3 Be7 6. Be2 0-0 7. 0-0 c6 8. Bg5 Qb6 9. Rb1 h6 10. Bxf6 Bxf6 11. Na4 Qa5 12. c4 dxc4 13. Nc3 Bf5 14. Ra1 Rd8 15. Bxc4 Qb4 16. Qb3 Qxb3 17. Bxb3 Bxd4 18. Rad1 Bf6 19. Bxf7+ Kxf7 20. Rxd8 Bxd8 21. Re1 Nd7 22. Nd4 Bg6 23. Ne6 Ba5 24. Re3 Bxc3 25. bxc3 Re8 0-1

[Event "Hannover Bezirks op"]
[Site "Hannover"]
[Date "2017.05.20"]
[Round "7.14"]
[White "Piotrowski, Jan"]
[Black "Heiseke, Gerhard"]
[Result "1-0"]
[ECO "B01"]
[WhiteElo "1475"]
[BlackElo "1255"]
[PlyCount "79"]
[EventDate "2017.01.21"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Nf6 3. d4 Bg4 4. Be2 Bxe2 5. Qxe2 Qxd5 6. Nf3 Nc6 7. c3 e6 8. 0-0 Qd7 9. Bf4 Bd6 10. Bxd6 Qxd6 11. Nbd2 h6 12. Nc4 Qd5 13. Rfe1 g5 14. h3 h5 15. Ne3 Qa5 16. Nc4 Qb5 17. Nd6+ cxd6 18. Qxb5 0-0-0 19. Nxg5 a6 20. Qd3 Rdf8 21. Ne4 Ne8 22. a3 d5 23. Nc5 Nc7 24. a4 b6 25. Nxa6 Kb7 26. Nxc7 Kxc7 27. b4 Ra8 28. Qg3+ Kb7 29. b5 Ne7 30. Qd6 Rhe8 31. Qb4 Ra5 32. c4 Nf5 33. cxd5 Rd8 34. dxe6 Rxd4 35. Qxd4 Nxd4 36. e7 Ra8 37. e8Q Rxe8 38. Rxe8 f5 39. Rae1 f4 40. R1e7# 1-0

[Event "Hannover Bezirks op"]
[Site "Hannover"]
[Date "2017.05.03"]
[Round "6.13"]
[White "Pirker, Franz"]
[Black "Piotrowski, Jan"]
[Result "0-1"]
[ECO "A00"]
[WhiteElo "1219"]
[BlackElo "1475"]
[PlyCount "122"]
[EventDate "2017.01.21"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. g3 d5 2. b3 e5 3. e3 Nf6 4. c4 c6 5. Ba3 Be7 6. Nf3 Bg4 7. Be2 e4 8. Nh4 Bxe2 9. Qxe2 Bxa3 10. Nxa3 0-0 11. 0-0 d4 12. Nc2 d3 13. Qd1 dxc2 14. Qxc2 Qd3 15. Qb2 c5 16. Ng2 Nc6 17. Nf4 Qd7 18. Rad1 Rad8 19. d3 Qe7 20. dxe4 Rxd1 21. Rxd1 Nxe4 22. Nd5 Qe5 23. Qa3 Rd8 24. Kg2 Nf6 25. Qxc5 Nxd5 26. cxd5 Qd6 27. Qc4 Ne5 28. Qe4 Ng6 29. Qd4 b6 30. f4 Ne7 31. e4 f5 32. e5 Qxd5+ 33. Qxd5+ Rxd5 34. Rc1 Rd2+ 35. Kf3 Rxa2 36. g4 fxg4+ 37. Kxg4 Rxh2 38. Rc7 Kf7 39. Rxa7 h5+ 40. Kg5 g6 41. Rd7 Ke6 42. Rd6+ Kf7 43. e6+ Kg7 44. Rd7 Rg2+ 45. Kh4 Rg4+ 46. Kh3 Kf6 47. Rd6 Rxf4 48. Rxb6 Re4 49. Rb8 Rxe6 50. Rf8+ Kg5 51. Kg3 Re3+ 52. Kf2 Rxb3 53. Rf7 Nf5 54. Rd7 h4 55. Rd1 Kf4 56. Ke2 g5 57. Rf1+ Kg4 58. Rg1+ Ng3+ 59. Kf2 h3 60. Rd1 Rf3+ 61. Ke1 Rf1+ 0-1

[Event "Hannover Ihme Cup"]
[Site "Hannover"]
[Date "2017.04.30"]
[Round "5.29"]
[White "Heiseke, Gerhard"]
[Black "Piotrowski, Jan"]
[Result "1-0"]
[ECO "C51"]
[WhiteElo "1251"]
[BlackElo "1475"]
[PlyCount "105"]
[EventDate "2017.04.28"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Bc5 6. d4 exd4 7. cxd4 Bb4+ 8. Nbd2 Bxd2+ 9. Qxd2 f6 10. 0-0 d6 11. Qc3 Nge7 12. Qb3 Na5 13. Bf7+ Kf8 14. Qb5 c6 15. Qh5 Ng8 16. a4 Qe7 17. Bg6 Bg4 18. Qxg4 hxg6 19. Qxg6 Nb3 20. Rb1 Nxc1 21. Rbxc1 Qf7 22. Qg3 Rd8 23. e5 dxe5 24. dxe5 Rh6 25. Rfe1 Rg6 26. Qf4 Re8 27. Rcd1 Qc7 28. Qf5 Ne7 29. Qh5 Rd8 30. Qh8+ Ng8 31. Rxd8+ Qxd8 32. Qh5 Rh6 33. Qf5 Rh8 34. Ng5 Qe8 35. e6 Ne7 36. Qf3 Kg8 37. Nf7 Rh7 38. Rd1 Nd5 39. Qf5 Qe7 40. Re1 g6 41. Qxg6+ Rg7 42. Qh5 Rh7 43. Qg4+ Kf8 44. f4 Rg7 45. Qh3 Nxf4 46. Qh8+ Rg8 47. Qh6+ Rg7 48. Qxf4 Qc5+ 49. Qf2 Qa5 50. e7+ Ke8 51. Nd6+ Kd7 52. e8Q+ Kxd6 53. Qf8+ 1-0

[Event "Hannover Ihme Cup"]
[Site "Hannover"]
[Date "2017.04.30"]
[Round "4.29"]
[White "Poschadel, Andreas Gregor"]
[Black "Piotrowski, Jan"]
[Result "1/2-1/2"]
[ECO "C79"]
[WhiteElo "1451"]
[BlackElo "1475"]
[PlyCount "62"]
[EventDate "2017.04.28"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 d6 6. h3 Be7 7. 0-0 0-0 8. a3 Bd7 9. Re1 Re8 10. Nc3 Nd4 11. Bxd7 Nxf3+ 12. Qxf3 Qxd7 13. Be3 c6 14. Rad1 Qc7 15. d4 exd4 16. Bxd4 Rad8 17. Be3 b6 18. Bf4 Qb7 19. e5 dxe5 20. Bxe5 Rxd1 21. Rxd1 Qc8 22. Kf1 Rd8 23. Rd3 Rxd3 24. Qxd3 h6 25. Qf3 Qe6 26. Bf4 Nd5 27. Nxd5 Qxd5 28. Qxd5 cxd5 29. Ke2 g5 30. Be5 f6 31. Bc3 Kf7 1/2-1/2

[Event "Hannover Ihme Cup"]
[Site "Hannover"]
[Date "2017.04.29"]
[Round "2.25"]
[White "Piotrowski, Jan"]
[Black "Busch, Hans Hinrich"]
[Result "0-1"]
[ECO "B45"]
[WhiteElo "1475"]
[BlackElo "1612"]
[PlyCount "30"]
[EventDate "2017.04.28"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. Nc3 Nc6 4. d4 cxd4 5. Nxd4 Nf6 6. Nxc6 bxc6 7. Bg5 Be7 8. e5 Nd5 9. Bxe7 Qxe7 10. Nxd5 exd5 11. Qe2 0-0 12. 0-0-0 Re8 13. Re1 d6 14. exd6 Qg5+ 15. Kd1 Rxe2 0-1

[Event "Hannover Ihme Cup"]
[Site "Hannover"]
[Date "2017.04.29"]
[Round "3.27"]
[White "Piotrowski, Jan"]
[Black "Meijerink, Inken"]
[Result "0-1"]
[ECO "B30"]
[WhiteElo "1475"]
[BlackElo "1569"]
[PlyCount "80"]
[EventDate "2017.04.28"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Nc3 g6 4. Bc4 Bg7 5. d3 e6 6. Be3 b6 7. Rb1 Nge7 8. 0-0 0-0 9. Qd2 d5 10. exd5 exd5 11. Nxd5 Nxd5 12. Bg5 Nf6 13. Bh6 Bb7 14. Bxg7 Kxg7 15. Rfe1 Qd6 16. c3 Na5 17. Bb5 Bxf3 18. gxf3 a6 19. Ba4 b5 20. Bc2 Qd5 21. Qf4 Nc6 22. b3 Nh5 23. Qe4 Qg5+ 24. Qg4 Qxg4+ 25. fxg4 Nf4 26. Kf1 Rfe8 27. Re4 Rxe4 28. dxe4 Ne5 29. Bd1 Rd8 30. g5 Rd2 31. h4 Rxa2 32. f3 Rh2 33. Ra1 Rxh4 34. Kf2 Rh1 35. Kg3 Ned3 36. e5 Rg1+ 37. Kh4 Nxe5 38. Rxa6 Rxd1 39. Rf6 Rh1+ 40. Kg3 Nh5+ 0-1

[Event "Hannover Ihme Cup"]
[Site "Hannover"]
[Date "2017.04.28"]
[Round "1.26"]
[White "Tenne, Fabian"]
[Black "Piotrowski, Jan"]
[Result "1-0"]
[ECO "D36"]
[WhiteElo "1878"]
[BlackElo "1475"]
[PlyCount "79"]
[EventDate "2017.04.28"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 c6 5. e3 Be7 6. cxd5 exd5 7. Bd3 Nbd7 8. Nge2 0-0 9. Qc2 g6 10. f3 c5 11. Nf4 cxd4 12. exd4 Nb6 13. 0-0 Re8 14. Qb3 Rb8 15. a4 Be6 16. Nxe6 fxe6 17. Rfe1 Nh5 18. Bd2 Bg5 19. Qc2 Kg7 20. Bb5 Bxd2 21. Qxd2 Re7 22. a5 Nc4 23. Bxc4 dxc4 24. Qe3 Kf7 25. Ne4 Ng7 26. Qf4+ Nf5 27. Ng5+ Kg8 28. Nxe6 Rxe6 29. Rxe6 Qxd4+ 30. Qxd4 Nxd4 31. Rd6 Nb5 32. Rd7 c3 33. bxc3 Nxc3 34. Re1 b5 35. axb6 axb6 36. Ree7 b5 37. Rg7+ Kf8 38. Rxh7 Ne2+ 39. Kf2 Nf4 40. Rh8# 1-0

[Event "Hannover Bezirks op"]
[Site "Hannover"]
[Date "2017.04.01"]
[Round "5.12"]
[White "Piotrowski, Jan"]
[Black "Obert, Guenter Fritz"]
[Result "0-1"]
[ECO "C01"]
[WhiteElo "1475"]
[BlackElo "2000"]
[PlyCount "54"]
[EventDate "2017.01.21"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. exd5 exd5 4. Nc3 Nc6 5. Nf3 Bg4 6. Be2 Nf6 7. Bg5 Bb4 8. 0-0 Bxc3 9. bxc3 0-0 10. Re1 Qd6 11. c4 dxc4 12. Bxf6 Qxf6 13. d5 Nb4 14. a3 Na6 15. h3 Bxf3 16. Bxf3 Nc5 17. Rb1 Rad8 18. Rb5 b6 19. Rb4 c3 20. Rd4 Rd6 21. Re3 c6 22. Rxc3 cxd5 23. Qd2 Rfd8 24. a4 Ne6 25. Rdd3 d4 26. Rc6 Rxc6 27. Bxc6 Nc5 0-1

[Event "Hannover Bezirks op"]
[Site "Hannover"]
[Date "2017.03.18"]
[Round "4.13"]
[White "Mumm, Karen"]
[Black "Piotrowski, Jan"]
[Result "1/2-1/2"]
[ECO "C45"]
[WhiteElo "1623"]
[BlackElo "1475"]
[PlyCount "28"]
[EventDate "2017.01.21"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nf6 5. Nxc6 bxc6 6. Bd3 Bc5 7. Bg5 d6 8. Qe2 Be6 9. e5 dxe5 10. Qxe5 Bd4 11. Qe2 Bxb2 12. Bb5 cxb5 13. Qxb5+ Bd7 14. Qxb2 Qe7+ 1/2-1/2

[Event "Hannover Bezirks op"]
[Site "Hannover"]
[Date "2017.02.18"]
[Round "3.11"]
[White "Piotrowski, Jan"]
[Black "Braun, Alexander"]
[Result "0-1"]
[ECO "B02"]
[WhiteElo "1475"]
[BlackElo "1754"]
[PlyCount "94"]
[EventDate "2017.01.21"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Nf6 3. Nc3 Nxd5 4. Nf3 Bg4 5. Be2 Nc6 6. d4 e6 7. Nxd5 Qxd5 8. c3 Bd6 9. 0-0 Qh5 10. g3 0-0-0 11. Re1 Kb8 12. Nh4 Bxe2 13. Qxe2 Qd5 14. Nf3 Rhe8 15. Be3 e5 16. dxe5 Nxe5 17. Nxe5 Qxe5 18. Rad1 h5 19. Qf3 Qb5 20. Bc1 h4 21. Bf4 hxg3 22. Bxd6 gxf2+ 23. Qxf2 Rxe1+ 24. Rxe1 Rxd6 25. Kh1 Rf6 26. Qe2 Qxe2 27. Rxe2 Re6 28. Rd2 Kc8 29. Rd1 Re2 30. Rb1 c5 31. a3 Kc7 32. Kg1 Kc6 33. b3 Ra2 34. a4 b5 35. axb5+ Kxb5 36. h4 Rc2 37. c4+ Kb4 38. Kf1 Rh2 39. Kg1 Rxh4 40. Rf1 Rg4+ 41. Kh2 Kxb3 42. Rxf7 a5 43. Kh3 Rxc4 44. Rxg7 a4 45. Rb7+ Rb4 46. Rc7 c4 47. Rd7 a3 0-1

[Event "Hannover Bezirks op"]
[Site "Hannover"]
[Date "2017.02.04"]
[Round "2.13"]
[White "Moseler, Thomas"]
[Black "Piotrowski, Jan"]
[Result "1/2-1/2"]
[ECO "C67"]
[WhiteElo "1612"]
[BlackElo "1475"]
[PlyCount "91"]
[EventDate "2017.01.21"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. 0-0 Nxe4 5. d4 Nd6 6. Bxc6 dxc6 7. Nxe5 Be7 8. Nc3 0-0 9. Bf4 Bf6 10. Ne2 Be6 11. c3 Nc4 12. Nd3 b6 13. b3 Nd6 14. Rc1 Rc8 15. Ne5 Bxe5 16. Bxe5 Bg4 17. h3 Bxe2 18. Qxe2 Re8 19. Qg4 f6 20. Bh2 Rf8 21. Rfe1 Re8 22. Qf3 Rxe1+ 23. Rxe1 Qd7 24. Qd3 Re8 25. Rxe8+ Qxe8 26. Kf1 b5 27. f3 a6 28. Kf2 g6 29. Qe3 Qd7 30. Qd3 Qe7 31. Bf4 Qd7 32. Bc1 Kf7 33. Ba3 Qe6 34. Bb4 Kg7 35. Ba5 Qd7 36. d5 Nb7 37. Bb4 cxd5 38. Ba3 c6 39. Qe3 Kf7 40. Qa7 a5 41. Qa8 Ke6 42. Qg8+ Qf7 43. Qxf7+ Kxf7 44. Ke3 Ke6 45. Kd3 c5 46. Ke3 1/2-1/2

[Event "Hannover Bezirks op"]
[Site "Hannover"]
[Date "2017.01.21"]
[Round "1.14"]
[White "Piotrowski, Jan"]
[Black "Kraeuter, Paavo Alexander"]
[Result "0-1"]
[ECO "C01"]
[WhiteElo "1475"]
[BlackElo "1689"]
[PlyCount "88"]
[EventDate "2017.01.21"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. exd5 exd5 4. Nc3 Nf6 5. Nf3 Bd6 6. Bg5 c6 7. Bxf6 Qxf6 8. Bd3 0-0 9. 0-0 Bg4 10. Re1 Bxf3 11. Qxf3 Qxd4 12. Qe2 Nd7 13. Rad1 Qb6 14. Rb1 Nf6 15. Qf3 Rae8 16. Re2 Rxe2 17. Nxe2 Re8 18. b3 Ne4 19. Bxe4 Rxe4 20. Ng3 Bxg3 21. Qxg3 Qd8 22. Kf1 Qe8 23. f3 Re7 24. Re1 Rxe1+ 25. Qxe1 Qxe1+ 26. Kxe1 f5 27. Ke2 g5 28. g3 Kf7 29. Ke3 c5 30. c3 Ke6 31. a4 b6 32. b4 a5 33. b5 h6 34. f4 g4 35. Kd3 c4+ 36. Kd4 Kd6 37. Ke3 Kc5 38. Kd2 d4 39. Kc2 dxc3 40. Kxc3 Kd5 41. Kd2 Kd4 42. Kc2 c3 43. Kd1 Kd3 44. Kc1 c2 0-1

[Event "Daehne Cup Region 15/16 VII Rest"]
[Site "Hannover"]
[Date "2016.07.28"]
[Round "5"]
[White "Eckert, Lutz"]
[Black "Piotrowski, Jan"]
[Result "1-0"]
[ECO "D61"]
[WhiteElo "1494"]
[BlackElo "1147"]
[PlyCount "35"]
[EventDate "2016.07.??"]
[EventType "swiss"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. c4 e6 4. Nc3 Nbd7 5. Bg5 Be7 6. e3 c6 7. Bd3 0-0 8. Qc2 Re8 9. 0-0 c5 10. dxc5 Nxc5 11. Bxf6 Nxd3 12. Bxe7 Qxe7 13. Qxd3 dxc4 14. Qxc4 Rd8 15. Rad1 a6 16. Rxd8+ Qxd8 17. Rd1 Bd7 18. Qd4 1-0

[Event "Daehne Cup Region 15/16 VII Rest"]
[Site "Hannover"]
[Date "2016.07.21"]
[Round "4"]
[White "Piotrowski, Jan"]
[Black "Obert, Guenter Fritz"]
[Result "0-1"]
[ECO "C01"]
[WhiteElo "1147"]
[BlackElo "1983"]
[PlyCount "44"]
[EventDate "2016.07.??"]
[EventType "swiss"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 h6 4. Nf3 Nf6 5. exd5 exd5 6. h3 Bd6 7. Bd3 0-0 8. 0-0 Nc6 9. Re1 Be6 10. a3 Re8 11. Be3 Qd7 12. Bb5 a6 13. Bxc6 Qxc6 14. Qd2 Kh7 15. Ne5 Bxe5 16. dxe5 Ne4 17. Nxe4 dxe4 18. Bd4 Rad8 19. c3 Qd5 20. Qc2 c5 21. Rxe4 Bf5 22. c4 Qxe4 0-1

[Event "Daehne Cup Region 15/16 VII"]
[Site "Hannover"]
[Date "2016.06.30"]
[Round "1"]
[White "Mueller, Wolfgang"]
[Black "Piotrowski, Jan"]
[Result "1-0"]
[ECO "C30"]
[WhiteElo "1767"]
[BlackElo "1147"]
[PlyCount "43"]
[EventDate "2016.06.30"]
[EventType "k.o."]
[EventRounds "5"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 e5 2. Nc3 Nf6 3. f4 d6 4. Bc4 Nc6 5. Nf3 Bg4 6. 0-0 Be7 7. h3 Bh5 8. g4 Nxg4 9. hxg4 Bxg4 10. Bxf7+ Kf8 11. Bc4 Nd4 12. Nxd4 exd4 13. Qxg4 dxc3 14. Qe6 d5 15. Qxd5 Qxd5 16. Bxd5 Bc5+ 17. Kg2 c6 18. Bb3 cxd2 19. Bxd2 Rd8 20. Rad1 g6 21. Bb4 Rxd1 22. Bxc5+ 1-0

[Event "Hannover Ihme Cup"]
[Site "Hannover"]
[Date "2016.05.22"]
[Round "5"]
[White "Lambrecht, Harald"]
[Black "Piotrowski, Jan"]
[Result "1/2-1/2"]
[ECO "D02"]
[WhiteElo "1467"]
[BlackElo "1169"]
[PlyCount "42"]
[EventDate "2016.05.20"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "GER"]
[SourceTitle "CBM 189 Extra"]
[Source "ChessBase"]
[SourceDate "2019.06.03"]
[SourceVersion "1"]
[SourceVersionDate "2019.06.03"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. Bf4 e6 4. e3 c6 5. Bd3 Nbd7 6. 0-0 Be7 7. c4 c5 8. Nc3 a6 9. h3 0-0 10. Re1 Re8 11. Qc2 b6 12. cxd5 exd5 13. b3 Bb7 14. e4 dxe4 15. Nxe4 Nxe4 16. Bxe4 Bxe4 17. Rxe4 Nf6 18. Ree1 h6 19. dxc5 Bxc5 20. Rxe8+ Qxe8 21. Re1 Qd8 1/2-1/2

[Event "Hannover Ihme Cup"]
[Site "Hannover"]
[Date "2016.05.22"]
[Round "4"]
[White "Piotrowski, Jan"]
[Black "Redmer, Reinhard"]
[Result "1/2-1/2"]
[ECO "C01"]
[WhiteElo "1169"]
[BlackElo "1517"]
[PlyCount "30"]
[EventDate "2016.05.20"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "GER"]
[SourceTitle "CBM 189 Extra"]
[Source "ChessBase"]
[SourceDate "2019.06.03"]
[SourceVersion "1"]
[SourceVersionDate "2019.06.03"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. exd5 exd5 4. Nc3 Nf6 5. Nf3 Bd6 6. Be2 0-0 7. 0-0 c6 8. Be3 Bg4 9. Re1 Nbd7 10. h3 Bh5 11. Qd2 Bb4 12. a3 Ne4 13. Qd3 Bxc3 14. bxc3 Qa5 15. Bd2 Bg6 1/2-1/2

[Event "Hannover Ihme Cup"]
[Site "Hannover"]
[Date "2016.05.21"]
[Round "3"]
[White "Glaschak, Joachim"]
[Black "Piotrowski, Jan"]
[Result "1/2-1/2"]
[ECO "D30"]
[WhiteElo "1573"]
[BlackElo "1169"]
[PlyCount "45"]
[EventDate "2016.05.20"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "GER"]
[SourceTitle "CBM 189 Extra"]
[Source "ChessBase"]
[SourceDate "2019.06.03"]
[SourceVersion "1"]
[SourceVersionDate "2019.06.03"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. e3 Nf6 4. Nf3 Nbd7 5. a3 Be7 6. Nbd2 c6 7. c5 0-0 8. b4 b6 9. Bb2 Bb7 10. Bd3 b5 11. 0-0 Re8 12. Qc2 g6 13. Rae1 Bf8 14. h3 Bg7 15. e4 dxe4 16. Nxe4 Nxe4 17. Bxe4 Nf6 18. Bd3 Qc7 19. Ne5 a6 20. Bc1 Rad8 21. Be3 Nd5 22. Bd2 Nf6 23. Bc3 1/2-1/2

[Event "Hannover Ihme Cup"]
[Site "Hannover"]
[Date "2016.05.21"]
[Round "2"]
[White "Piotrowski, Jan"]
[Black "Kausche, Peter W"]
[Result "0-1"]
[ECO "B00"]
[WhiteElo "1169"]
[BlackElo "1713"]
[PlyCount "112"]
[EventDate "2016.05.20"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "GER"]
[SourceTitle "CBM 189 Extra"]
[Source "ChessBase"]
[SourceDate "2019.06.03"]
[SourceVersion "1"]
[SourceVersionDate "2019.06.03"]
[SourceQuality "1"]

1. e4 g6 2. d4 Bg7 3. Nf3 b6 4. Nc3 Bb7 5. Be2 Nf6 6. e5 Nd5 7. Nxd5 Bxd5 8. 0-0 0-0 9. c3 d6 10. exd6 Qxd6 11. Be3 Nd7 12. Qd2 Nf6 13. Bf4 Qd8 14. Qc1 Bb7 15. Bh6 Nd7 16. Bxg7 Kxg7 17. Qc2 c5 18. Rfd1 cxd4 19. Rxd4 Qc7 20. Rad1 Rad8 21. Qd2 Bc8 22. Bb5 e5 23. Rc4 Nc5 24. Qc2 Rxd1+ 25. Qxd1 Rd8 26. Qc2 a6 27. Ba4 b5 28. Bxb5 axb5 29. Rb4 Bf5 30. Qe2 Qd6 31. Ne1 e4 32. Rd4 Qc7 33. Rxd8 Qxd8 34. g4 Be6 35. Qxb5 Qd1 36. Qxc5 Qxe1+ 37. Kg2 Bxg4 38. Qe5+ f6 39. Qc7+ Kh6 40. Qf4+ Kh5 41. Qxf6 Bf3+ 42. Kg3 Qg1+ 43. Kf4 Qxh2+ 44. Ke3 Qg1 45. Qe5+ Qg5+ 46. Qxg5+ Kxg5 47. c4 h5 48. c5 h4 49. c6 h3 50. Kd4 h2 51. b4 h1Q 52. Kc5 e3 53. b5 exf2 54. Kb6 Bxc6 55. a4 Bxb5 56. axb5 f1Q 0-1

[Event "Hannover Ihme Cup"]
[Site "Hannover"]
[Date "2016.05.20"]
[Round "1"]
[White "Block, Timo"]
[Black "Piotrowski, Jan"]
[Result "1/2-1/2"]
[ECO "C54"]
[WhiteElo "1727"]
[BlackElo "1169"]
[PlyCount "46"]
[EventDate "2016.05.20"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "GER"]
[SourceTitle "CBM 189 Extra"]
[Source "ChessBase"]
[SourceDate "2019.06.03"]
[SourceVersion "1"]
[SourceVersionDate "2019.06.03"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d3 d6 6. 0-0 Bg4 7. Nbd2 0-0 8. h3 Bxf3 9. Nxf3 h6 10. Bb3 a6 11. Re1 Re8 12. Bc2 d5 13. exd5 Nxd5 14. Bb3 Nf6 15. Qc2 Qd7 16. Be3 Bd6 17. Rad1 Na5 18. Bc1 Nxb3 19. Qxb3 Qb5 20. Qc2 c5 21. b3 Qc6 22. Re2 Re7 23. Rde1 Rae8 1/2-1/2

[Event "Hannover Region-ch"]
[Site "Hannover"]
[Date "2016.04.23"]
[Round "7"]
[White "Piotrowski, Jan"]
[Black "Quasigroch, Peter"]
[Result "0-1"]
[ECO "C19"]
[WhiteElo "1134"]
[BlackElo "1510"]
[PlyCount "90"]
[EventDate "2016.01.16"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 Ne7 6. Bd3 c5 7. e5 Bd7 8. Nf3 Qc7 9. Bd2 c4 10. Be2 0-0 11. 0-0 Nbc6 12. h4 f6 13. exf6 Rxf6 14. Bg5 Rf7 15. Qd2 Raf8 16. Bxe7 Rxe7 17. h5 Qf4 18. Qxf4 Rxf4 19. Ne5 Nxe5 20. dxe5 Ref7 21. Bf3 R7f5 22. Rae1 Be8 23. Re3 Bxh5 24. Bxh5 Rxh5 25. g3 Re4 26. Rfe1 Rhxe5 27. Kg2 Rxe3 28. fxe3 Rf5 29. Rb1 Rf7 30. Rb4 Kf8 31. Ra4 b6 32. Rb4 Ke7 33. a4 Kd6 34. Rb1 Kc5 35. Rb5+ Kc6 36. Rb1 a6 37. Rh1 h6 38. Rb1 Kc5 39. Rd1 e5 40. g4 Rd7 41. Kf3 d4 42. Ke4 d3 43. cxd3 cxd3 44. Kxe5 d2 45. Ke4 Kc4 0-1

[Event "Hannover Region-ch"]
[Site "Hannover"]
[Date "2016.03.19"]
[Round "5"]
[White "Scholz, Tom"]
[Black "Piotrowski, Jan"]
[Result "1-0"]
[ECO "C68"]
[WhiteElo "1216"]
[BlackElo "1134"]
[PlyCount "55"]
[EventDate "2016.01.16"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[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. Bc4 Nf6 5. d3 Bc5 6. a3 0-0 7. Bg5 h6 8. Bh4 d6 9. Nc3 Nd4 10. Nd5 c6 11. Nxf6+ gxf6 12. Nxd4 Bxd4 13. c3 Bb6 14. Qh5 Kg7 15. Rf1 d5 16. exd5 cxd5 17. Bb3 Bc7 18. g3 Qd6 19. f4 exf4 20. gxf4 Re8+ 21. Kd2 Be6 22. d4 Rh8 23. Rf2 f5 24. Bc2 Qd7 25. Rg1+ Kf8 26. Bf6 Rh7 27. Rg7 Rxg7 28. Qxh6 1-0

[Event "Hannover Region-ch"]
[Site "Hannover"]
[Date "2016.02.13"]
[Round "4"]
[White "Piotrowski, Jan"]
[Black "Pubantz, Richard"]
[Result "0-1"]
[ECO "B06"]
[WhiteElo "1134"]
[BlackElo "1604"]
[PlyCount "114"]
[EventDate "2016.01.16"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. Nc3 a6 5. Be2 b5 6. a3 Bb7 7. 0-0 Nd7 8. Be3 Ngf6 9. Bd3 c5 10. d5 0-0 11. Rb1 Ng4 12. Bg5 h6 13. Bh4 c4 14. Be2 Nc5 15. h3 Ne5 16. Nxe5 Bxe5 17. Bf3 f5 18. exf5 Rxf5 19. Bg3 Bg7 20. Bh4 Rf8 21. Qe2 Qc7 22. Qxe7 Rf7 23. Qxc7 Rxc7 24. Bg3 Rd8 25. Rfe1 Bc8 26. Ne4 Nxe4 27. Bxe4 Kh7 28. c3 Rf7 29. Bh4 Bf6 30. Bxf6 Rxf6 31. Rf1 Kg7 32. Rbe1 Rdf8 33. Bf3 Bxh3 34. Re3 Bf5 35. Be4 Re8 36. Bxf5 Rxe3 37. fxe3 Rxf5 38. Rxf5 gxf5 39. g3 Kf6 40. Kf2 Ke5 41. Kf3 Kxd5 42. Kf4 Ke6 43. e4 fxe4 44. Kxe4 Kf6 45. Kf4 d5 46. g4 Ke6 47. Ke3 Ke5 48. Kf3 d4 49. cxd4+ Kxd4 50. Ke2 Ke4 51. Kd2 Kf4 52. Kc3 Kxg4 53. Kb4 h5 54. Ka5 Kf4 55. Kxa6 Ke4 56. Kxb5 Kd4 57. a4 h4 0-1

[Event "Hannover Region-ch"]
[Site "Hannover"]
[Date "2016.02.06"]
[Round "3"]
[White "Piotrowski, Jan"]
[Black "Glaschak, Joachim"]
[Result "1-0"]
[ECO "B13"]
[WhiteElo "1134"]
[BlackElo "1573"]
[PlyCount "112"]
[EventDate "2016.01.16"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. Nf3 Nf6 5. Nc3 e6 6. Bd3 Nc6 7. 0-0 a6 8. Re1 b5 9. a3 Be7 10. Bd2 Qb6 11. Ne2 Bb7 12. c3 0-0 13. Qc2 Rac8 14. Be3 b4 15. Qd2 bxc3 16. Nxc3 Qc7 17. h3 Na5 18. Qc2 Nc4 19. Bxc4 Qxc4 20. Rec1 h6 21. Qa4 Qc6 22. Qxc6 Bxc6 23. Ne5 Bb7 24. Na4 Bd6 25. Nc5 Rc7 26. b4 Rfc8 27. Nxb7 Rxc1+ 28. Rxc1 Rxc1+ 29. Bxc1 Bxe5 30. dxe5 Ne4 31. Nc5 Nc3 32. Kf1 d4 33. Nxa6 d3 34. Bd2 Nb1 35. Ke1 Nxa3 36. Nc5 Nc4 37. Nxd3 Kf8 38. Bc3 Ke7 39. b5 Kd7 40. Nc5+ Kc7 41. Bd4 Kb6 42. Nxe6+ Kxb5 43. Nxg7 Kc6 44. Nf5 Kd5 45. Ba1 Na3 46. Kd1 h5 47. g4 hxg4 48. hxg4 Nb5 49. Kd2 Ke4 50. Nh6 Kf4 51. Nxf7 Kxg4 52. e6 Nc7 53. e7 Ne8 54. Be5 Kf5 55. f4 Ke6 56. Nd6 Nc7 1-0

[Event "Hannover Region-ch"]
[Site "Hannover"]
[Date "2016.01.16"]
[Round "1"]
[White "Braun, Alexander"]
[Black "Piotrowski, Jan"]
[Result "1-0"]
[ECO "C50"]
[WhiteElo "1754"]
[BlackElo "1134"]
[PlyCount "57"]
[EventDate "2016.01.16"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Be7 5. c3 dxc3 6. Qd5 Nh6 7. Bxh6 Rf8 8. Bxg7 d6 9. Nxc3 Be6 10. Qb5 Rg8 11. Bxe6 fxe6 12. Qh5+ Kd7 13. Qxh7 Nb4 14. 0-0-0 Nc6 15. h4 Qe8 16. h5 Rd8 17. e5 Qf7 18. h6 d5 19. Ne4 Qf4+ 20. Kb1 Kc8 21. Nf6 Qa4 22. Qc2 Qxc2+ 23. Kxc2 Nb4+ 24. Kb1 Bc5 25. Nxg8 Bxf2 26. h7 d4 27. h8Q d3 28. Bf6 Nc2 29. Ne7+ 1-0

[Event "Hannover-chA"]
[Site "Lehrte"]
[Date "2015.11.01"]
[Round "7"]
[White "Heiseke, Gerhard"]
[Black "Piotrowski, Jan"]
[Result "1/2-1/2"]
[ECO "D02"]
[WhiteElo "1208"]
[BlackElo "1098"]
[PlyCount "72"]
[EventDate "2015.10.29"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. d4 d5 2. Bf4 e6 3. Nf3 Nc6 4. e3 Nf6 5. Bb5 Be7 6. Ne5 Bd7 7. Nxd7 Qxd7 8. Nd2 a6 9. Bd3 0-0 10. c3 Bd6 11. Bg3 Rfe8 12. Nf3 e5 13. dxe5 Nxe5 14. Nxe5 Bxe5 15. Qd2 Bxg3 16. hxg3 g6 17. 0-0-0 b5 18. a3 c6 19. Rh4 a5 20. Qe2 b4 21. axb4 axb4 22. Rxb4 Ra1+ 23. Kc2 Rxd1 24. Kxd1 Ne4 25. Kc2 f5 26. Bxe4 fxe4 27. f4 Rf8 28. Qa6 Rc8 29. Rb7 Rc7 30. Rb8+ Kg7 31. Qa8 Kh6 32. Rd8 Qg4 33. Rh8 Qe2+ 34. Kb3 Qc4+ 35. Ka3 Qc5+ 36. Kb3 Qc4+ 1/2-1/2

[Event "Hannover-chA"]
[Site "Lehrte"]
[Date "2015.10.31"]
[Round "5"]
[White "Tenninger, Joerg"]
[Black "Piotrowski, Jan"]
[Result "1-0"]
[ECO "D53"]
[WhiteElo "1525"]
[BlackElo "1098"]
[PlyCount "73"]
[EventDate "2015.10.29"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 Ne4 6. Bxe7 Qxe7 7. Nxe4 dxe4 8. a3 0-0 9. Ne2 c6 10. Qb3 Na6 11. Rd1 Nc7 12. Nc3 f5 13. Be2 Kh8 14. Rd2 b6 15. a4 Bd7 16. 0-0 Rab8 17. Rc1 a6 18. Qd1 b5 19. axb5 axb5 20. d5 exd5 21. cxd5 cxd5 22. Nxd5 Nxd5 23. Rxd5 Rfd8 24. Rc7 Rbc8 25. Rcxd7 Rxd7 26. Rxd7 Qf6 27. Rd4 h6 28. g3 Rb8 29. Qc2 Kh7 30. Qc5 b4 31. Rxb4 Re8 32. Rb5 Kg6 33. Bc4 Kg5 34. Rb6 Qe7 35. h4+ Kg4 36. Be2+ Kh3 37. Qxf5# 1-0

[Event "Hannover-chA"]
[Site "Lehrte"]
[Date "2015.10.30"]
[Round "4"]
[White "Piotrowski, Jan"]
[Black "Nagel, Detlev"]
[Result "0-1"]
[ECO "B00"]
[WhiteElo "1098"]
[BlackElo "1487"]
[PlyCount "76"]
[EventDate "2015.10.29"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 b6 2. d4 Bb7 3. Nc3 e6 4. Nf3 Bb4 5. Bd2 Bxc3 6. Bxc3 Bxe4 7. Bd3 Bxd3 8. Qxd3 d5 9. 0-0 Nf6 10. Bb4 Nbd7 11. Ne5 Nxe5 12. Qb5+ Ned7 13. Rfe1 a6 14. Qc6 Ra7 15. Rxe6+ Qe7 16. Rxe7+ Kd8 17. Qxd7+ Nxd7 18. Rxf7 Rg8 19. Re1 Kc8 20. Ree7 Nf6 21. Rxf6 gxf6 22. Rxh7 a5 23. Be7 c6 24. c3 Re8 25. Rh8 Raxe7 26. Rxe8+ Rxe8 27. Kf1 f5 28. g3 Kd7 29. h4 Re6 30. b3 c5 31. dxc5 bxc5 32. h5 d4 33. cxd4 cxd4 34. a3 d3 35. h6 d2 36. h7 d1Q+ 37. Kg2 Rh6 38. h8Q Qh1# 0-1

[Event "Hannover-chA"]
[Site "Lehrte"]
[Date "2015.10.30"]
[Round "3"]
[White "Schimmelpfennig, Juergen"]
[Black "Piotrowski, Jan"]
[Result "0-1"]
[ECO "C50"]
[WhiteElo "1356"]
[BlackElo "1098"]
[PlyCount "44"]
[EventDate "2015.10.29"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. Nc3 Nf6 5. 0-0 0-0 6. d3 d6 7. h3 h6 8. a3 Nd4 9. Be3 Nxf3+ 10. Qxf3 Bxe3 11. fxe3 c6 12. Rad1 a6 13. d4 Qe7 14. dxe5 dxe5 15. Ne2 Be6 16. Bd3 b5 17. Ng3 Rad8 18. Nf5 Bxf5 19. Qxf5 Rd6 20. c4 Rfd8 21. Be2 Rxd1 22. cxb5 Rxf1+ 0-1

[Event "Hannover-chA"]
[Site "Lehrte"]
[Date "2015.10.29"]
[Round "2"]
[White "Piotrowski, Jan"]
[Black "Brueckner, Michael"]
[Result "1/2-1/2"]
[ECO "C50"]
[WhiteElo "1098"]
[BlackElo "1317"]
[PlyCount "56"]
[EventDate "2015.10.29"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Nc3 Bc5 5. d3 Na5 6. Bb3 Nxb3 7. axb3 d5 8. exd5 Nxd5 9. Nxe5 Nxc3 10. bxc3 0-0 11. 0-0 Bd6 12. Nf3 Bg4 13. Ba3 Qf6 14. Bxd6 Bxf3 15. Qxf3 Qxf3 16. gxf3 cxd6 17. Rfe1 a6 18. Re7 Rab8 19. Rae1 Rfd8 20. b4 b5 21. Ra7 Ra8 22. Rxa8 Rxa8 23. c4 Kf8 24. cxb5 axb5 25. c4 bxc4 26. dxc4 Ra4 27. c5 dxc5 28. bxc5 Rc4 1/2-1/2

[Event "Hannover-chA"]
[Site "Lehrte"]
[Date "2015.10.29"]
[Round "1"]
[White "Schramm, Christian"]
[Black "Piotrowski, Jan"]
[Result "1-0"]
[ECO "D53"]
[WhiteElo "1454"]
[BlackElo "1098"]
[PlyCount "69"]
[EventDate "2015.10.29"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 Nc6 6. Nf3 0-0 7. Rc1 Re8 8. a3 a5 9. Nb5 h6 10. Bxf6 Bxf6 11. cxd5 exd5 12. Bd3 Re7 13. 0-0 Bg4 14. h3 Bh5 15. Bb1 Na7 16. Nc3 c6 17. Re1 Nc8 18. g4 Bg6 19. Bxg6 fxg6 20. Qd3 Qe8 21. Ne2 Nd6 22. Nf4 Ne4 23. Rc2 g5 24. Ne2 Rc8 25. Qb3 Qf7 26. Nc3 Nxc3 27. bxc3 Ree8 28. Nd2 Qd7 29. Rb1 b5 30. e4 Kf8 31. exd5 cxd5 32. Qxb5 Re1+ 33. Nf1 Qxb5 34. Rxb5 Rxc3 35. Rxc3 1-0

[Event "Daehne Cup Region 14/15 VII Rest"]
[Site "Hannover"]
[Date "2015.07.30"]
[Round "5"]
[White "Piotrowski, Jan"]
[Black "Meding, Guenter"]
[Result "0-1"]
[ECO "C42"]
[WhiteElo "1026"]
[BlackElo "1516"]
[PlyCount "107"]
[EventDate "2015.07.??"]
[EventType "swiss"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 d6 3. Bc4 Be7 4. Nc3 Nf6 5. d3 h6 6. h3 c6 7. 0-0 a5 8. a4 0-0 9. d4 exd4 10. Nxd4 Nbd7 11. Re1 Re8 12. Nf5 Ne5 13. Bb3 Bxf5 14. exf5 Qc7 15. Ne2 d5 16. c3 Bd6 17. Ng3 Ned7 18. Kh2 Nc5 19. Bc2 Rxe1 20. Qxe1 Nce4 21. f4 Bxf4 22. Bxf4 Qxf4 23. Rd1 Re8 24. Rd3 Nxg3 25. Qxg3 Qxg3+ 26. Kxg3 Re2 27. Bd1 Rxb2 28. Re3 Ne4+ 29. Kh2 Rd2 30. Bf3 Rc2 31. Bxe4 dxe4 32. Rxe4 Rxc3 33. Re8+ Kh7 34. Rb8 Rb3 35. Rf8 f6 36. Rf7 b5 37. axb5 cxb5 38. h4 a4 39. g3 a3 40. Kh3 a2 41. Ra7 Rb2 42. Kg4 Rb4+ 43. Kf3 Ra4 44. Rxa4 bxa4 45. Kg4 a1Q 46. Kh5 Qd1+ 47. g4 Qxg4+ 48. Kxg4 a3 49. h5 a2 50. Kh4 a1Q 51. Kg4 Qd4+ 52. Kg3 Qe4 53. Kf2 Qxf5+ 54. Ke3 0-1

[Event "Daehne Cup Region 14/15 VII Rest"]
[Site "Hannover"]
[Date "2015.07.23"]
[Round "4"]
[White "Paetsch, Hanno"]
[Black "Piotrowski, Jan"]
[Result "1-0"]
[ECO "D53"]
[WhiteElo "1718"]
[BlackElo "1026"]
[PlyCount "63"]
[EventDate "2015.07.??"]
[EventType "swiss"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nc6 3. c4 e6 4. Nc3 Nf6 5. Bg5 Be7 6. e3 0-0 7. Rc1 b6 8. cxd5 exd5 9. Bd3 Re8 10. Bb5 Bd7 11. Bxf6 Bxf6 12. Nxd5 Re6 13. Nxf6+ Rxf6 14. Ne5 Nb8 15. Nxd7 Nxd7 16. Bc6 Rb8 17. Qa4 Nf8 18. Qxa7 Ng6 19. 0-0 Ne7 20. Bf3 c6 21. Qa3 Rc8 22. Rfd1 Rh6 23. g3 Rf6 24. Bg2 Nd5 25. Qb3 Ne7 26. Rc3 b5 27. d5 Rd6 28. Rdc1 Qb6 29. dxc6 Nxc6 30. Qc2 Ne7 31. Rxc8+ Nxc8 32. Qxc8+ 1-0

[Event "Daehne Cup Region 14/15 VII"]
[Site "Hannover"]
[Date "2015.07.16"]
[Round "3"]
[White "Piotrowski, Jan"]
[Black "Kiesewetter, Oliver"]
[Result "0-1"]
[ECO "B19"]
[WhiteElo "1026"]
[BlackElo "1854"]
[PlyCount "82"]
[EventDate "2015.07.02"]
[EventType "k.o."]
[EventRounds "5"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. h4 h6 7. Nf3 Nd7 8. h5 Bh7 9. Bd3 Bxd3 10. Qxd3 e6 11. c4 Bb4+ 12. Bd2 Bxd2+ 13. Qxd2 Ngf6 14. Qe2 Qa5+ 15. Qd2 Qc7 16. Qe2 0-0 17. Ne5 Nxe5 18. dxe5 Qa5+ 19. Kf1 Nd7 20. Qe1 Qc7 21. Rh4 Nxe5 22. Rd1 c5 23. Kg1 Rad8 24. Qe2 Rxd1+ 25. Qxd1 Rd8 26. Qc2 Qe7 27. Re4 Nc6 28. Ne2 Qg5 29. g4 f5 30. Rxe6 Qxg4+ 31. Ng3 Nd4 32. Rg6 Nxc2 33. Rxg4 fxg4 34. Kg2 Ne1+ 35. Kg1 Nf3+ 36. Kg2 Rd1 37. Nf1 Rb1 38. b3 Rb2 39. a4 Rxb3 40. a5 Rb4 41. Ne3 Ne5 0-1

[Event "Daehne Cup Region 14/15 VII"]
[Site "Hannover"]
[Date "2015.07.09"]
[Round "2"]
[White "Piotrowski, Jan"]
[Black "Eckert, Lutz"]
[Result "1-0"]
[ECO "C01"]
[WhiteElo "1026"]
[BlackElo "1567"]
[PlyCount "65"]
[EventDate "2015.07.02"]
[EventType "k.o."]
[EventRounds "5"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. exd5 exd5 4. Nf3 Nf6 5. Nc3 Bb4 6. Bd2 0-0 7. Be2 Bf5 8. 0-0 Nc6 9. Bd3 Bxd3 10. cxd3 a6 11. a3 Ba5 12. Bg5 Re8 13. Re1 Rxe1+ 14. Qxe1 Bxc3 15. bxc3 h6 16. Bh4 Qd6 17. Bg3 Qd7 18. Ne5 Qe6 19. Nxc6 Qxc6 20. h3 Qd7 21. Qd2 c6 22. a4 Rc8 23. Be5 Nh7 24. h4 Qg4 25. Qf4 Qg6 26. Qg3 Qxg3 27. Bxg3 Re8 28. a5 Nf6 29. Rb1 Re7 30. f3 Kf8 31. Bd6 Ng8 32. Bxe7+ Nxe7 33. Rxb7 1-0

[Event "Daehne Cup Region 14/15 VII"]
[Site "Hannover"]
[Date "2015.07.02"]
[Round "1"]
[White "Richter, Klaus"]
[Black "Piotrowski, Jan"]
[Result "0-1"]
[ECO "D00"]
[WhiteElo "1514"]
[BlackElo "1026"]
[PlyCount "133"]
[EventDate "2015.07.02"]
[EventType "k.o."]
[EventRounds "5"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 d5 2. Nc3 Nf6 3. Nf3 Nc6 4. a3 e6 5. Bf4 Be7 6. h3 a6 7. e3 0-0 8. Be2 Bd7 9. Ne5 Nxe5 10. Bxe5 b6 11. Bd3 Bd6 12. 0-0 Qe7 13. Qf3 c5 14. Bxf6 Qxf6 15. Qxf6 gxf6 16. f4 f5 17. Be2 Be7 18. Bf3 cxd4 19. exd4 Bf6 20. Rfd1 Rac8 21. Rd2 Bh4 22. Kh2 Kh8 23. g3 Bf6 24. Be2 Ra8 25. Nd1 Bc6 26. Bf3 a5 27. Ne3 Rac8 28. c3 b5 29. Nd1 Rg8 30. Ne3 Bg7 31. Bh5 f6 32. Bf7 Rgf8 33. Bh5 Be8 34. Bxe8 Rfxe8 35. Rad1 Bh6 36. Re2 Kg8 37. Rde1 Kf7 38. Nc2 Re7 39. Ne3 Rce8 40. Kg2 a4 41. Kf3 Bg7 42. Nc2 e5 43. dxe5 fxe5 44. fxe5 Rxe5 45. Nb4 Rxe2 46. Rxe2 Rxe2 47. Kxe2 d4 48. Kd3 dxc3 49. bxc3 Ke6 50. Nc2 Be5 51. g4 f4 52. Ne1 h6 53. Nf3 Kd5 54. h4 Ke6 55. Nd2 Kd5 56. c4+ bxc4+ 57. Nxc4 f3 58. Ne3+ Ke6 59. Nc4 f2 60. Ke2 Bd4 61. Nd2 Bc5 62. Nb1 Bd4 63. Nd2 Bc5 64. h5 Bxa3 65. Kxf2 Bc1 66. Ne4 a3 67. Nc3 0-1

[Event "Hannover Ihme Cup"]
[Site "Hannover"]
[Date "2015.05.10"]
[Round "4"]
[White "Baum, Nils Alexander"]
[Black "Piotrowski, Jan"]
[Result "0-1"]
[ECO "D35"]
[WhiteElo "1469"]
[BlackElo "1015"]
[PlyCount "70"]
[EventDate "2015.05.08"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "GER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. cxd5 exd5 4. Nc3 Nf6 5. Nf3 Nc6 6. Bf4 Be7 7. e3 Bg4 8. Bd3 Bb4 9. 0-0 Bxc3 10. bxc3 0-0 11. h3 Bh5 12. Re1 Re8 13. c4 Nb4 14. Rb1 Nxd3 15. Qxd3 Bxf3 16. gxf3 Nh5 17. Bh2 Rb8 18. cxd5 Qxd5 19. Rb5 Qxf3 20. Rf5 Qxh3 21. Kh1 Re6 22. Rg1 Rg6 23. Rfg5 Qf3+ 24. R5g2 Rxg2 25. Rxg2 Re8 26. Qb5 Re6 27. Kg1 Qd1+ 28. Qf1 Qxf1+ 29. Kxf1 Rc6 30. Rg5 Nf6 31. Rd5 Nxd5 32. e4 Nc3 33. d5 Rc5 34. f4 Nxe4 35. f5 f6 0-1

[Event "Hannover Ihme Cup"]
[Site "Hannover"]
[Date "2015.05.10"]
[Round "5"]
[White "Piotrowski, Jan"]
[Black "Mumm, Karen"]
[Result "0-1"]
[ECO "B02"]
[WhiteElo "1015"]
[BlackElo "1326"]
[PlyCount "98"]
[EventDate "2015.05.08"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "GER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Nf6 3. Nc3 Nxd5 4. d4 Bf5 5. Nf3 e6 6. Bb5+ c6 7. Ba4 Nxc3 8. bxc3 Be7 9. 0-0 0-0 10. Be3 b5 11. Bb3 a5 12. a3 a4 13. Ba2 Bxa3 14. c4 Be7 15. cxb5 cxb5 16. c3 Qc7 17. Qd2 Be4 18. Bf4 Bd6 19. Bxd6 Qxd6 20. Qe3 Bd5 21. Bb1 Nd7 22. Be4 Bxe4 23. Qxe4 Nf6 24. Qd3 Rab8 25. Rfb1 Qd5 26. Rb4 Rb7 27. Rab1 Rfb8 28. Ne5 Nh5 29. Qe3 f6 30. Nd3 g5 31. Rf1 Rd8 32. f4 Rg7 33. Qh3 gxf4 34. Nxf4 Nxf4 35. Rxf4 Qg5 36. Qg3 e5 37. Qxg5 Rxg5 38. Rxf6 Kg7 39. Re6 Rd5 40. h4 Rf5 41. g3 Rf3 42. Rxe5 Rxe5 43. dxe5 Rxg3+ 44. Kf2 Rxc3 45. Rxb5 Kg6 46. Ra5 a3 47. e6 Kf6 48. Re5 Kxe5 49. e7 Rc8 0-1

[Event "Hannover Ihme Cup"]
[Site "Hannover"]
[Date "2015.05.09"]
[Round "3"]
[White "Piotrowski, Jan"]
[Black "Heckl, Philipp"]
[Result "0-1"]
[ECO "C50"]
[WhiteElo "1015"]
[BlackElo "1543"]
[PlyCount "52"]
[EventDate "2015.05.08"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "GER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nc3 Nc6 4. Bc4 Bc5 5. 0-0 d6 6. d3 Bg4 7. h3 Bh5 8. Na4 Nd4 9. Nxc5 Nxf3+ 10. gxf3 dxc5 11. Bg5 Qd7 12. Kh2 0-0-0 13. Rg1 h6 14. Bxf6 gxf6 15. Rg3 f5 16. exf5 Qxf5 17. Qe2 Rhe8 18. Qe4 Qd7 19. a4 f5 20. Qe2 e4 21. dxe4 fxe4 22. Qe3 Bxf3 23. Qxh6 Qd4 24. Be6+ Kb8 25. Kg1 Qd1+ 26. Rxd1 Rxd1+ 0-1

[Event "Hannover Ihme Cup"]
[Site "Hannover"]
[Date "2015.05.09"]
[Round "2"]
[White "Piotrowski, Jan"]
[Black "Meric, Geoffrey"]
[Result "0-1"]
[ECO "B50"]
[WhiteElo "1015"]
[BlackElo "1476"]
[PlyCount "66"]
[EventDate "2015.05.08"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "GER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Nc3 d6 4. d3 g6 5. Be3 Qb6 6. Rb1 Bg7 7. Be2 e6 8. Qd2 Nd4 9. 0-0 Bd7 10. Nd1 Nxe2+ 11. Qxe2 Ne7 12. c3 Qc6 13. Nd2 f5 14. f3 e5 15. c4 f4 16. Bf2 0-0 17. Nc3 g5 18. b4 b6 19. b5 Qc8 20. a4 h5 21. h3 Qe8 22. Nd5 Nxd5 23. exd5 Qg6 24. Ne4 g4 25. hxg4 hxg4 26. g3 gxf3 27. Qxf3 Bg4 28. Qg2 f3 29. Qh2 Rf5 30. Be3 Rh5 31. Qc2 Qh7 32. Nf2 Rh2 33. Rbc1 Rg2# 0-1

[Event "Hannover Ihme Cup"]
[Site "Hannover"]
[Date "2015.05.08"]
[Round "1"]
[White "Schoenfeld, Dietmar"]
[Black "Piotrowski, Jan"]
[Result "1-0"]
[ECO "C87"]
[WhiteElo "1917"]
[BlackElo "1015"]
[PlyCount "87"]
[EventDate "2015.05.08"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "GER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Re1 0-0 7. Bxc6 bxc6 8. Nxe5 Bb7 9. d4 d5 10. exd5 cxd5 11. Nc3 Re8 12. Bg5 h6 13. Bh4 Ne4 14. Bxe7 Rxe7 15. Nxe4 dxe4 16. Nc4 Bd5 17. Ne3 Bb7 18. c4 c6 19. Nf5 Re8 20. Qg4 Qg5 21. Qxg5 hxg5 22. Nd6 Re7 23. Rxe4 Rxe4 24. Nxe4 f6 25. Nd6 Bc8 26. Re1 Bd7 27. Re7 Rd8 28. Nb7 Re8 29. Rxe8+ Bxe8 30. Nc5 Bf7 31. b3 a5 32. Kf1 f5 33. Ke2 Kf8 34. Kd3 Ke7 35. Kc3 Bh5 36. a4 Be2 37. Nb7 Kd7 38. Nxa5 f4 39. Nb7 g4 40. Nc5+ Kc7 41. Ne6+ Kd6 42. Nxf4 Bd1 43. a5 g5 44. Nd3 1-0

[Event "Hannover Region-ch"]
[Site "Hannover"]
[Date "2015.03.07"]
[Round "6"]
[White "Goretzki, Juergen Johann"]
[Black "Piotrowski, Jan"]
[Result "1-0"]
[ECO "C85"]
[PlyCount "109"]
[EventDate "2015.01.10"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. 0-0 Nf6 6. d3 Bd6 7. b3 0-0 8. Bb2 Re8 9. h3 Nh5 10. Bc1 Nf4 11. Bxf4 exf4 12. Kh2 Qf6 13. Nbd2 Qh6 14. Rh1 b5 15. c4 Re5 16. Nxe5 Bxe5 17. Rb1 f3+ 18. Kg1 fxg2 19. Kxg2 Qg6+ 20. Kf1 f5 21. Nf3 Bf6 22. e5 Be7 23. d4 f4 24. c5 Bf5 25. Rb2 Bd3+ 26. Ke1 Qg2 27. Rg1 Qxh3 28. Qxd3 b4 29. Qe4 Rd8 30. Qxf4 Rf8 31. Qg3 Qxg3 32. Rxg3 h6 33. Ke2 h5 34. Rb1 h4 35. Rg6 h3 36. Rh1 Kf7 37. Rxc6 g5 38. Rxh3 g4 39. Rh7+ Ke8 40. Nh4 Bxh4 41. Rxh4 Rg8 42. Kf1 Kd8 43. Kg2 Kd7 44. Rxa6 c6 45. Rh6 Rf8 46. Ra7+ Ke8 47. Ra8+ Ke7 48. Rxf8 Kxf8 49. Rxc6 Ke7 50. Rd6 Ke8 51. c6 Ke7 52. c7 Ke8 53. c8Q+ Kf7 54. Qc7+ Ke8 55. Rd8# 1-0

[Event "Hannover Region-ch"]
[Site "Hannover"]
[Date "2015.02.28"]
[Round "5"]
[White "Piotrowski, Jan"]
[Black "Pirker, Franz"]
[Result "0-1"]
[ECO "B50"]
[BlackElo "1281"]
[PlyCount "110"]
[EventDate "2015.01.10"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Bc4 e6 4. Nc3 g6 5. 0-0 Bg7 6. d3 Bh6 7. Bxh6 Nxh6 8. Qd2 Ng4 9. Qf4 Nf6 10. Rfe1 Nh5 11. Qd2 0-0 12. d4 Nc6 13. a3 Na5 14. Ba2 a6 15. e5 b6 16. b4 Nc6 17. Ne4 d5 18. Nf6+ Nxf6 19. exf6 Qxf6 20. c3 c4 21. Qh6 Qg7 22. Qh4 b5 23. Re3 Re8 24. Rae1 a5 25. Bb1 axb4 26. axb4 f6 27. Qg3 f5 28. Ne5 Rf8 29. f4 g5 30. Qxg5 Nxe5 31. Qxg7+ Kxg7 32. Rg3+ Ng6 33. h4 h5 34. Kh2 Kh6 35. Rf1 Nxh4 36. Kh3 Ng6 37. Rg5 Nxf4+ 38. Kh4 Ng6+ 39. Rxg6+ Kxg6 40. Bc2 Ra2 41. Rf2 Kf6 42. g3 Rg8 43. Re2 Ra1 44. Rh2 Rg4+ 45. Kh3 Rg1 46. Rg2 Rh1+ 47. Rh2 Rf1 48. Kg2 Rxg3+ 49. Kxg3 f4+ 50. Kg2 Re1 51. Kf3 e5 52. dxe5+ Rxe5 53. Kxf4 Bg4 54. Kg3 Re3+ 55. Kf4 Rf3# 0-1

[Event "Hannover Region-ch"]
[Site "Hannover"]
[Date "2015.02.14"]
[Round "4"]
[White "Glaschak, Joachim"]
[Black "Piotrowski, Jan"]
[Result "1-0"]
[ECO "D53"]
[WhiteElo "1258"]
[PlyCount "93"]
[EventDate "2015.01.10"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 0-0 6. Nf3 Nc6 7. cxd5 exd5 8. a3 Re8 9. Bd3 Bg4 10. h3 Bh5 11. Be2 h6 12. Bxf6 Bxf6 13. Qb3 Ne7 14. 0-0 Rb8 15. Rac1 c6 16. Na4 Qc7 17. Nc5 Qb6 18. Qxb6 axb6 19. Nd7 Rbd8 20. Nxb6 Nc8 21. Na4 Bg6 22. Bd1 Bd3 23. Re1 Bb5 24. Nc3 Ba6 25. Be2 Bxe2 26. Rxe2 b6 27. b4 Nd6 28. a4 Rc8 29. Rec2 g5 30. b5 Kg7 31. bxc6 Rxc6 32. Nxd5 Rxc2 33. Rxc2 Rb8 34. Rc6 Ne8 35. Nxb6 Rb7 36. a5 Ra7 37. Nc4 Bd8 38. Rc8 Bc7 39. Rxe8 Rb7 40. Nfd2 Rb5 41. g4 Kg6 42. Re7 Bd8 43. Ne5+ Kf6 44. Rxf7+ Ke6 45. Rh7 Bxa5 46. Rxh6+ Kd5 47. Nf1 1-0

[Event "Hannover Region-ch"]
[Site "Hannover"]
[Date "2015.02.07"]
[Round "3"]
[White "Moseler, Thomas"]
[Black "Piotrowski, Jan"]
[Result "1-0"]
[ECO "C87"]
[WhiteElo "1499"]
[PlyCount "47"]
[EventDate "2015.01.10"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Re1 0-0 7. Bxc6 dxc6 8. Nxe5 Bc5 9. c3 Re8 10. d4 Bb6 11. Bg5 Be6 12. Nf3 Qd7 13. Bxf6 gxf6 14. Qd2 Kh8 15. Qh6 Qe7 16. e5 f5 17. Ng5 f6 18. exf6 Qd7 19. Nd2 Bd5 20. f7 Rxe1+ 21. Rxe1 Qxf7 22. Nxf7+ Bxf7 23. Re7 Bg8 24. Qg7# 1-0

[Event "Hannover Region-ch"]
[Site "Hannover"]
[Date "2015.01.24"]
[Round "2"]
[White "Piotrowski, Jan"]
[Black "Heiseke, Gerhard"]
[Result "1-0"]
[ECO "B01"]
[BlackElo "1267"]
[PlyCount "119"]
[EventDate "2015.01.10"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 d5 2. Nf3 dxe4 3. Ng1 e6 4. Nc3 f5 5. d3 Nf6 6. Be2 Nc6 7. Be3 Bd6 8. dxe4 Nxe4 9. Nxe4 fxe4 10. Bc4 Qe7 11. c3 e5 12. Ne2 Be6 13. Bb3 Bxb3 14. Qxb3 0-0-0 15. Ng3 Qh4 16. Nf5 Qg4 17. Nxd6+ Rxd6 18. 0-0 a6 19. Qc2 Ne7 20. Rad1 Rhd8 21. Rxd6 Rxd6 22. h3 Qf5 23. Bc5 Rd7 24. Rd1 Rxd1+ 25. Qxd1 Ng6 26. Be3 Nf4 27. Kh2 Nd3 28. Qb3 Qf8 29. Qe6+ Kb8 30. b4 b6 31. a3 Kb7 32. Qd5+ Kb8 33. Qxe4 Nxf2 34. Qxe5 Nd1 35. Bxb6 Qd6 36. Qxd6 cxd6 37. Bd4 g6 38. c4 Kb7 39. a4 Kc6 40. b5+ axb5 41. cxb5+ Kb7 42. g4 d5 43. Kg2 h5 44. g5 Kc7 45. Kf3 Kb7 46. Kf4 Kc7 47. Ke5 Nb2 48. Bxb2 Kb6 49. Kf6 Ka5 50. Kxg6 Kxa4 51. b6 d4 52. Bxd4 Kb5 53. b7 Ka6 54. b8Q h4 55. Kf6 Ka5 56. g6 Ka6 57. g7 Ka5 58. g8Q Ka4 59. Qg7 Ka5 60. Qga7# 1-0

[Event "Hannover Region-ch"]
[Site "Hannover"]
[Date "2015.01.10"]
[Round "1"]
[White "Kansier, Frank"]
[Black "Piotrowski, Jan"]
[Result "1-0"]
[ECO "C45"]
[WhiteElo "1584"]
[PlyCount "58"]
[EventDate "2015.01.10"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 d6 5. Bc4 Nf6 6. Nc3 Nxd4 7. Qxd4 Be7 8. f3 0-0 9. Be3 Bd7 10. 0-0 c5 11. Qd2 b6 12. Rad1 a6 13. a4 Qe8 14. Ra1 Be6 15. Be2 Qd8 16. Rfd1 h6 17. Bf4 Nh7 18. Bxd6 Bxd6 19. Qxd6 Qxd6 20. Rxd6 Rfb8 21. Rad1 Nf8 22. Nd5 Bxd5 23. R1xd5 b5 24. a5 Ne6 25. Kf2 Rd8 26. Ke3 Kf8 27. f4 Rxd6 28. Rxd6 Ke7 29. Rd5 g6 1-0

