[Event "BEL-ch U18"]
[Site "Blankenberge"]
[Date "2017.04.15"]
[Round "9"]
[White "Koornstra, Robbert Jan"]
[Black "Marchal, Laurent"]
[Result "0-1"]
[ECO "B33"]
[WhiteElo "1706"]
[BlackElo "1898"]
[PlyCount "46"]
[EventDate "2017.04.09"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BEL"]
[SourceTitle "CBM 178 Extra"]
[Source "ChessBase"]
[SourceDate "2017.06.22"]
[SourceVersion "1"]
[SourceVersionDate "2017.06.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e5 5. Nb5 d6 6. N1c3 a6 7. Na3 Nf6 8. Bg5 Be7 9. Bxf6 Bxf6 10. Nc4 Nd4 11. Nd5 b5 12. Nce3 Bg5 13. c3 Ne6 14. Nc2 Nc5 15. f3 0-0 16. Bd3 f5 17. 0-0 f4 18. Rf2 Be6 19. Bf1 Bh4 20. Rd2 g5 21. c4 bxc4 22. Bxc4 g4 23. Be2 Bg3 0-1

[Event "BEL-ch U18"]
[Site "Blankenberge"]
[Date "2017.04.14"]
[Round "8"]
[White "Bratuszewski, Jorden"]
[Black "Koornstra, Robbert Jan"]
[Result "1/2-1/2"]
[ECO "A21"]
[WhiteElo "2076"]
[BlackElo "1706"]
[PlyCount "87"]
[EventDate "2017.04.09"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BEL"]
[SourceTitle "CBM 178 Extra"]
[Source "ChessBase"]
[SourceDate "2017.06.22"]
[SourceVersion "1"]
[SourceVersionDate "2017.06.22"]
[SourceQuality "1"]

1. c4 f5 2. Nc3 g6 3. Nf3 Bg7 4. g3 Nf6 5. Bg2 0-0 6. 0-0 d6 7. d3 e5 8. Bg5 a5 9. a3 h6 10. Bxf6 Qxf6 11. Rb1 c6 12. e3 g5 13. d4 g4 14. dxe5 dxe5 15. Nd2 e4 16. Ne2 Nd7 17. Nf4 Qf7 18. Qc2 Ne5 19. Rfd1 Be6 20. Bf1 Rfd8 21. c5 Rxd2 22. Rxd2 Nf3+ 23. Kg2 Bb3 24. Qc1 Nxd2 25. Qxd2 Be5 26. Be2 Bxf4 27. gxf4 Bd5 28. Qc3 Qg7 29. Bc4 Qxc3 30. Bxd5+ cxd5 31. bxc3 Rc8 32. Rb5 a4 33. Kf1 Rc7 34. Ke2 Kf7 35. Kd2 Kg6 36. Rb6+ Kh5 37. Rf6 Rxc5 38. Rxf5+ Kh4 39. Rf8 Rb5 40. f5 Rb2+ 41. Ke1 Kh3 42. Rh8 Rb1+ 43. Ke2 Rb2+ 44. Ke1 1/2-1/2

[Event "BEL-ch U18"]
[Site "Blankenberge"]
[Date "2017.04.09"]
[Round "1"]
[White "Capone, Nicola"]
[Black "Koornstra, Robbert Jan"]
[Result "1-0"]
[ECO "C24"]
[WhiteElo "2349"]
[BlackElo "1706"]
[PlyCount "67"]
[EventDate "2017.04.09"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BEL"]
[SourceTitle "CBM 178 Extra"]
[Source "ChessBase"]
[SourceDate "2017.06.22"]
[SourceVersion "1"]
[SourceVersionDate "2017.06.22"]
[SourceQuality "1"]

1. e4 e5 2. Bc4 Nf6 3. d3 c6 4. Nf3 Be7 5. 0-0 d6 6. c3 0-0 7. Bb3 Nbd7 8. Re1 Nc5 9. Bc2 Ne6 10. d4 Qc7 11. Nbd2 Rd8 12. Nf1 Bf8 13. Ng3 g6 14. h3 Bg7 15. Be3 c5 16. a4 b6 17. Qd2 cxd4 18. cxd4 d5 19. Nxe5 Nxe4 20. Nxe4 Bxe5 21. Nc3 Bg7 22. Bb3 Bb7 23. Ne2 Qd7 24. a5 Ba6 25. Nc3 Nc7 26. Bf4 Bc4 27. axb6 axb6 28. Rxa8 Nxa8 29. Bd1 Ba6 30. Bg4 f5 31. Bf3 Bb7 32. Bg5 Rb8 33. Re7 Qc8 34. Nxd5 1-0

