[Event "Hannover-ch U16/18"]
[Site "Lehrte"]
[Date "2011.10.18"]
[Round "7"]
[White "Renzelmann, Jannis"]
[Black "Dyroy, Piet Constantin"]
[Result "1-0"]
[ECO "C50"]
[WhiteElo "1048"]
[PlyCount "33"]
[EventDate "2011.10.15"]
[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 Bb4 4. 0-0 Nf6 5. Re1 0-0 6. a3 Bc5 7. b4 Bd4 8. c3 Bb6 9. d4 d6 10. Bg5 Qd7 11. Bxf6 gxf6 12. h3 f5 13. Nh4 fxe4 14. Rxe4 d5 15. Rg4+ Kh8 16. Qf3 dxc4 17. Qf6# 1-0

[Event "Hannover-ch U16/18"]
[Site "Lehrte"]
[Date "2011.10.17"]
[Round "6"]
[White "Dyroy, Piet Constantin"]
[Black "Kornhagen, Fynn"]
[Result "0-1"]
[ECO "B10"]
[BlackElo "1129"]
[PlyCount "50"]
[EventDate "2011.10.15"]
[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 c6 2. Nf3 d5 3. Bd3 dxe4 4. Bxe4 Bg4 5. 0-0 e6 6. d3 Bd6 7. Qe1 Nf6 8. Bg5 Be7 9. Bxf6 Bxf6 10. Na3 Bxb2 11. Rb1 Bxa3 12. Ne5 Bh5 13. g4 Bg6 14. Nxg6 hxg6 15. f3 Qc7 16. Rf2 Bc5 17. h4 Nd7 18. Kh1 Bxf2 19. Qxf2 0-0-0 20. Qh2 Qxh2+ 21. Kxh2 Rxh4+ 22. Kg3 Rhh8 23. f4 f5 24. Rh1 fxe4 25. Rxh8 Rxh8 0-1

[Event "Hannover-ch U16/18"]
[Site "Lehrte"]
[Date "2011.10.17"]
[Round "5"]
[White "Dyroy, Piet Constantin"]
[Black "Pirweyssian, Marva"]
[Result "1/2-1/2"]
[ECO "C41"]
[PlyCount "43"]
[EventDate "2011.10.15"]
[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 d6 3. Bc4 Bg4 4. 0-0 Qf6 5. Be2 Nh6 6. Nc3 Bxf3 7. Bxf3 c6 8. d3 Nd7 9. Bxh6 Qxh6 10. Bg4 Nf6 11. h3 Be7 12. b4 0-0 13. b5 g6 14. Rb1 Rab8 15. bxc6 bxc6 16. f3 Nxg4 17. fxg4 Bh4 18. Qc1 g5 19. Qa3 Rxb1 20. Rxb1 Qf6 21. Rf1 Qe7 22. Kh2 1/2-1/2

[Event "Hannover-ch U16/18"]
[Site "Lehrte"]
[Date "2011.10.16"]
[Round "3"]
[White "Dyroy, Piet Constantin"]
[Black "Barnewitz, Max Otto"]
[Result "0-1"]
[ECO "C54"]
[BlackElo "1310"]
[PlyCount "62"]
[EventDate "2011.10.15"]
[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. c3 Nf6 5. d4 exd4 6. cxd4 Bb4+ 7. Bd2 Nxe4 8. 0-0 0-0 9. Bxb4 Nxb4 10. Nc3 Ng5 11. Ne5 d6 12. Nd3 Nxd3 13. Qxd3 Qf6 14. Nd5 Qd8 15. Rfe1 c6 16. Ne7+ Kh8 17. Nxc8 Rxc8 18. d5 c5 19. Re3 Qf6 20. Rg3 Rfe8 21. Qc3 Qh6 22. Re1 Ne4 23. Rh3 Nxc3 24. Rxh6 Rxe1+ 25. Bf1 gxh6 26. bxc3 b5 27. f3 b4 28. cxb4 cxb4 29. Kf2 Rxf1+ 30. Kxf1 Re8 31. f4 a5 0-1

[Event "Hannover-ch U16/18"]
[Site "Lehrte"]
[Date "2011.10.16"]
[Round "4"]
[White "Seidenstuecker, Hans Lennart"]
[Black "Dyroy, Piet Constantin"]
[Result "1-0"]
[ECO "A40"]
[WhiteElo "1131"]
[PlyCount "38"]
[EventDate "2011.10.15"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. c4 e6 2. d4 g6 3. Nc3 Bg7 4. Nf3 Ne7 5. Bg5 0-0 6. e4 d5 7. cxd5 exd5 8. Nxd5 Nxd5 9. Bxd8 Rxd8 10. exd5 Rxd5 11. Bc4 Rd8 12. 0-0 Nc6 13. d5 Ne5 14. Nxe5 Bxe5 15. Qb3 b6 16. Rfe1 Re8 17. f4 f6 18. fxe5 fxe5 19. d6+ Kg7 1-0

[Event "Hannover-ch U16/18"]
[Site "Lehrte"]
[Date "2011.10.15"]
[Round "1"]
[White "Winkler, Maximilian"]
[Black "Dyroy, Piet Constantin"]
[Result "1-0"]
[ECO "C55"]
[WhiteElo "1231"]
[PlyCount "57"]
[EventDate "2011.10.15"]
[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 h6 5. 0-0 Bb4 6. Qe2 0-0 7. b3 b6 8. Bb2 Bb7 9. Nd5 a6 10. Nxe5 Nxe5 11. Nxf6+ Qxf6 12. f4 Bc5+ 13. Kh1 Nxc4 14. Bxf6 gxf6 15. Qxc4 d6 16. b4 b5 17. Qc3 Bb6 18. Qxf6 Bxe4 19. d3 Bh7 20. Rf3 Bg6 21. Rg3 Kh7 22. f5 Rg8 23. fxg6+ fxg6 24. Qf7+ Rg7 25. Qe6 Bd4 26. Rf1 Rgg8 27. Rf7+ Bg7 28. Qxg6+ Kh8 29. Rxg7 1-0

