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   [Event "NOVA College NOVA College NK Jeugd Barra"][Site "Haarlem, Netherlands"][Date "2011.05.06"][Round "7"][White "Van Ee, Robin"][Black "Colijn, Erik-Jan"][Result "0-1"][ECO "B86"][WhiteElo "1886"][BlackElo "1982"][PlyCount "72"][EventDate "2011.05.06"] 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 Nbd7 8.O-O Nc5 9. Re1 Be7 10. Qf3 O-O 11. Be3 Bd7 12. Rad1 Rc8 13. Bc1 Nxb3 14. cxb3 Qc7 15. Qg3 b5 16. Bh6 Ne8 17. Rd3 Qd8 18. Qg4 f5 19. exf5 exf5 20. Qh5 gxh6 21. Rg3+ Kh8 22. Qxh6 f4 23. Nd5 Rg8 24. Qxf4 Bg5 25. Qf7 Ng7 26. Qf3 Rf8 27.Qd3 Rc5 28. Nc3 Re5 29. Rf1 Bf4 30. Rf3 Qe8 31. Nce2 Nh5 32. g3 Bh6 33. Nc3 Bh3 34. Ra1 Re1+ 35. Rxe1 Qxe1+ 36. Qf1 Qxf1# 0-1   

   [Event "NOVA College NOVA College NK Jeugd Barra"][Site "Haarlem, Netherlands"][Date "2011.05.07"][Round "8"][White "Colijn, Erik-Jan"][Black "Otten, Martijn"][Result "1/2-1/2"][ECO "C04"][WhiteElo "1982"][BlackElo "1959"][PlyCount "39"][EventDate "2011.05.07"] 1. e4 e6 2. d4 d5 3. Nd2 Nc6 4. Ngf3 Nf6 5. e5 Nd7 6. Be2 f6 7. exf6 gxf6 8.Nf1 Bg7 9. Ne3 O-O 10. h4 Nb6 11. h5 e5 12. h6 Bh8 13. Rh5 e4 14. Nh4 Kf7 15.Nhf5 Rg8 16. c4 Be6 17. c5 Nc8 18. Bg4 Qd7 19. Bh3 N8e7 20. a3 1/2-1/2   

   [Event "NOVA College NOVA College NK Jeugd Barra"][Site "Haarlem, Netherlands"][Date "2011.05.08"][Round "9"][White "Nicolai, Amir"][Black "Colijn, Erik-Jan"][Result "1-0"][WhiteElo "1931"][BlackElo "1982"][Annotator "Microsoft"][PlyCount "61"][EventDate "2011.05.08"] 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 Nbd7 7. f3 e6 8. g4 h6 9. Qd2 Qc7 10. h4 b5 11. a3 Bb7 12. Qg2 Ne5 13. g5 hxg5 14. hxg5 Rxh1 15.Qxh1 Nfd7 16. Qh3 Nc5 17. O-O-O O-O-O 18. Bf4 Kb8 19. Kb1 Ned7 20. Ndxb5 axb5 21. Nxb5 Qb6 22. Rxd6 Bxd6 23. Bxd6+ Kc8 24. Bc7 Qxc7 25. Nxc7 Kxc7 26. Qh2+ Kc8 27. Qd6 e5 28. Bh3 Na6 29. Qxe5 Bc6 30. b4 Kb7 31. Qe7 1-0