[Event "Hoogeveen op 23rd"]
[Site "Hoogeveen"]
[Date "2019.10.26"]
[Round "9"]
[White "Noordenbos, Daan"]
[Black "Merkon, Oseb"]
[Result "1/2-1/2"]
[ECO "B33"]
[WhiteElo "2133"]
[BlackElo "1930"]
[PlyCount "118"]
[EventDate "2019.10.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 192 Extra"]
[Source "Chessbase"]
[SourceDate "2019.11.06"]
[SourceVersion "1"]
[SourceVersionDate "2019.11.06"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Nd5 Nxd5 8. exd5 Nb8 9. a4 Be7 10. Be3 a6 11. Na3 0-0 12. Nc4 Nd7 13. Be2 f5 14. f3 Qe8 15. f4 e4 16. 0-0 Nf6 17. Nb6 Rb8 18. a5 Ng4 19. Bd4 Bf6 20. Ra3 Bxd4+ 21. Qxd4 Nf6 22. b4 Nd7 23. Nc4 Qe7 24. Rg3 Nf6 25. Nb6 Nd7 26. c4 Qf6 27. Qxf6 Rxf6 28. Kf2 Kf7 29. Ke3 g6 30. Rh3 h5 31. Kd4 Ke7 32. Rh4 Nxb6 33. axb6 Bd7 34. Rh3 Rff8 35. Rg3 Kf6 36. h4 Rfe8 37. Ra1 Rbd8 38. Ra5 Re7 39. Re3 Be8 40. Bd1 Rc8 41. Bb3 Rd8 42. Rc3 Bd7 43. Ke3 Ree8 44. Rc2 Ke7 45. Ra1 Rc8 46. Kd4 Kf6 47. Rc3 e3 48. Rxe3 Rxe3 49. Kxe3 Re8+ 50. Kd3 Re4 51. g3 Ke7 52. Rf1 Kf6 53. Bd1 Rxc4 54. Kxc4 Bb5+ 55. Kd4 Bxf1 56. Ba4 Bb5 57. Bb3 Bf1 58. Kc3 Bb5 59. Kb2 Ke7 1/2-1/2

[Event "Hoogeveen op 23rd"]
[Site "Hoogeveen"]
[Date "2019.10.25"]
[Round "8"]
[White "Klaren, Duncan"]
[Black "Merkon, Oseb"]
[Result "0-1"]
[ECO "B30"]
[WhiteElo "1923"]
[BlackElo "1930"]
[PlyCount "80"]
[EventDate "2019.10.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 192 Extra"]
[Source "Chessbase"]
[SourceDate "2019.11.06"]
[SourceVersion "1"]
[SourceVersionDate "2019.11.06"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Nc3 e5 4. Bc4 d6 5. d3 Be7 6. Nd2 Nf6 7. Nf1 Bg4 8. f3 Be6 9. Ne3 a6 10. a4 Nd4 11. 0-0 Rb8 12. a5 Nc6 13. Ned5 Nxa5 14. Ba2 Nc6 15. f4 exf4 16. Bxf4 h6 17. Qf3 Nd4 18. Qf2 Rc8 19. Rae1 Ng4 20. Qd2 Bg5 21. h3 Ne5 22. Ne2 Nxe2+ 23. Qxe2 Bxf4 24. Rxf4 Qg5 25. Ref1 Bxh3 26. Nb6 Rc6 27. Nc4 Nxc4 28. Bxc4 f6 29. Bd5 Rc7 30. c3 Re7 31. Qf3 Bc8 32. d4 h5 33. dxc5 dxc5 34. Qf2 b6 35. Bc6+ Kf7 36. Rd1 Be6 37. Bd5 Rhe8 38. Rf5 Qg4 39. Rf1 Bxd5 40. exd5 Re2 0-1

[Event "Hoogeveen op 23rd"]
[Site "Hoogeveen"]
[Date "2019.10.24"]
[Round "7"]
[White "Merkon, Oseb"]
[Black "Stavast, Dick"]
[Result "0-1"]
[ECO "A21"]
[WhiteElo "1930"]
[BlackElo "2068"]
[PlyCount "46"]
[EventDate "2019.10.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 192 Extra"]
[Source "Chessbase"]
[SourceDate "2019.11.06"]
[SourceVersion "1"]
[SourceVersionDate "2019.11.06"]
[SourceQuality "1"]

1. c4 d6 2. Nc3 e5 3. g3 f5 4. Bg2 Nf6 5. d4 Be7 6. dxe5 dxe5 7. Qxd8+ Bxd8 8. e4 fxe4 9. Nxe4 Nbd7 10. Be3 Nxe4 11. Bxe4 Nf6 12. Bg2 c6 13. Nf3 e4 14. Nd2 Be6 15. Bxe4 Ba5 16. Bd3 0-0-0 17. Be2 Ne4 18. Rd1 Nxd2 19. Bxd2 Rxd2 20. Rxd2 Rd8 21. 0-0 Rxd2 22. Bh5 Bh3 23. Rc1 Rxb2 0-1

[Event "Hoogeveen op 23rd"]
[Site "Hoogeveen"]
[Date "2019.10.23"]
[Round "6"]
[White "Vogel, Jaap"]
[Black "Merkon, Oseb"]
[Result "1-0"]
[ECO "E62"]
[WhiteElo "2123"]
[BlackElo "1930"]
[PlyCount "59"]
[EventDate "2019.10.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 192 Extra"]
[Source "Chessbase"]
[SourceDate "2019.11.06"]
[SourceVersion "1"]
[SourceVersionDate "2019.11.06"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 0-0 5. 0-0 d6 6. c4 Nfd7 7. Nc3 Nc6 8. e3 e5 9. b3 f5 10. Bb2 g5 11. d5 Na5 12. Nd2 b6 13. b4 Nb7 14. f4 e4 15. Rb1 g4 16. Nb3 Nf6 17. Nd4 Qe8 18. Ncb5 Qf7 19. Ne6 Bxe6 20. dxe6 Qe7 21. Nd4 c5 22. Nxf5 Qxe6 23. Nxg7 Kxg7 24. f5 Qxc4 25. Qxg4+ Kf7 26. Qg5 Ke7 27. Qg7+ Qf7 28. Bxf6+ Ke8 29. Bxe4 Rb8 30. Bc6+ 1-0

[Event "Hoogeveen op 23rd"]
[Site "Hoogeveen"]
[Date "2019.10.22"]
[Round "5"]
[White "Merkon, Oseb"]
[Black "Mijnster, Niels"]
[Result "1-0"]
[ECO "A36"]
[WhiteElo "1930"]
[BlackElo "2145"]
[PlyCount "107"]
[EventDate "2019.10.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 192 Extra"]
[Source "Chessbase"]
[SourceDate "2019.11.06"]
[SourceVersion "1"]
[SourceVersionDate "2019.11.06"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 c5 3. g3 Nc6 4. Bg2 g6 5. d3 Bg7 6. e4 d6 7. Nge2 0-0 8. 0-0 Bd7 9. Be3 Qc8 10. d4 Ng4 11. b3 Nxe3 12. fxe3 Bh3 13. Rc1 Bxg2 14. Kxg2 Bh6 15. Nf4 Bg7 16. d5 Ne5 17. h3 g5 18. Nh5 Bh8 19. g4 Qd7 20. Ne2 Ng6 21. Neg3 e6 22. Rc2 Qe7 23. Rcf2 Be5 24. Nf6+ Bxf6 25. Rxf6 Nf4+ 26. R6xf4 gxf4 27. exf4 Kh8 28. Qa1+ f6 29. dxe6 Qxe6 30. Qd1 a5 31. a4 Rg8 32. Qd5 Qxd5 33. exd5 Rge8 34. Kf3 Rad8 35. Nh5 Rf8 36. Re1 f5 37. Re6 Kg8 38. Ng3 fxg4+ 39. hxg4 Rfe8 40. Nf5 b6 41. Ke4 Kf7 42. Nh6+ Kg7 43. g5 Rxe6+ 44. dxe6 b5 45. e7 d5+ 46. cxd5 Re8 47. d6 c4 48. Kd4 cxb3 49. Kc3 bxa4 50. d7 Rxe7 51. d8Q Re3+ 52. Kd4 Kg6 53. Kxe3 b2 54. Qe8+ 1-0

[Event "Hoogeveen op 23rd"]
[Site "Hoogeveen"]
[Date "2019.10.21"]
[Round "4"]
[White "Merkon, Oseb"]
[Black "Boersma, Jan"]
[Result "0-1"]
[ECO "A16"]
[WhiteElo "1930"]
[BlackElo "2070"]
[PlyCount "96"]
[EventDate "2019.10.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 192 Extra"]
[Source "Chessbase"]
[SourceDate "2019.11.06"]
[SourceVersion "1"]
[SourceVersionDate "2019.11.06"]
[SourceQuality "1"]

1. c4 g6 2. Nc3 Bg7 3. g3 d6 4. Bg2 Nc6 5. d3 Nf6 6. e4 0-0 7. Nge2 Bd7 8. 0-0 Qc8 9. f4 Bh3 10. f5 Bxg2 11. Kxg2 e6 12. Nf4 Nd4 13. Be3 c5 14. g4 gxf5 15. exf5 Qc6+ 16. Kg3 Kh8 17. Bxd4 cxd4 18. Nb5 e5 19. Nh3 Rg8 20. Ng5 Raf8 21. Qf3 Bh6 22. h4 Bxg5 23. hxg5 Rxg5 24. Qxc6 Rxg4+ 25. Kf2 bxc6 26. Nxd6 Kg7 27. Rg1 h5 28. Rxg4+ hxg4 29. Rh1 c5 30. Ne4 Nxe4+ 31. dxe4 Rb8 32. b3 a5 33. Rh4 a4 34. Rxg4+ Kf6 35. Rg3 a3 36. Rh3 Rg8 37. Rh4 Kg5 38. Rh7 Kf4 39. Rh4+ Rg4 40. Rxg4+ Kxg4 41. Ke2 Kf4 42. Kd3 f6 43. b4 cxb4 44. c5 b3 45. c6 bxa2 46. c7 a1Q 47. c8Q Qd1+ 48. Kc4 Qc2+ 0-1

[Event "Hoogeveen op 23rd"]
[Site "Hoogeveen"]
[Date "2019.10.21"]
[Round "3"]
[White "Pekin, Tolgay"]
[Black "Merkon, Oseb"]
[Result "1/2-1/2"]
[ECO "B31"]
[WhiteElo "2083"]
[BlackElo "1930"]
[PlyCount "99"]
[EventDate "2019.10.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 192 Extra"]
[Source "Chessbase"]
[SourceDate "2019.11.06"]
[SourceVersion "1"]
[SourceVersionDate "2019.11.06"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. Bxc6 dxc6 5. d3 Bg7 6. h3 Nf6 7. Nc3 Nd7 8. Be3 e5 9. Qd2 h6 10. 0-0 b6 11. Nh2 g5 12. Ne2 Nf8 13. Ng3 Ne6 14. Nh5 0-0 15. Ng4 Nf4 16. Nxg7 Bxg4 17. hxg4 Kxg7 18. g3 Ne6 19. Kg2 Qe7 20. f3 Rad8 21. Qf2 f6 22. a4 a5 23. f4 exf4 24. gxf4 Nxf4+ 25. Bxf4 gxf4 26. Qxf4 Qe5 27. Qxe5 fxe5 28. Rf5 c4 29. Ra3 Rd4 30. Kf3 cxd3 31. cxd3 Rfd8 32. Ke3 Rb4 33. Rxe5 Rxb2 34. Rc3 c5 35. Re7+ Kf6 36. Rb7 Rb4 37. Kf4 Rd6 38. Rc4 Rxd3 39. Rxb4 axb4 40. Rxb6+ Kg7 41. Rb5 Ra3 42. Rxc5 Rxa4 43. Rb5 Ra1 44. Rxb4 Rf1+ 45. Ke3 Kf6 46. Rb8 Re1+ 47. Kf3 Rf1+ 48. Ke2 Rf4 49. Rf8+ Ke5 50. Rxf4 1/2-1/2

[Event "Hoogeveen op 23rd"]
[Site "Hoogeveen"]
[Date "2019.10.20"]
[Round "2"]
[White "Faber, Hugo"]
[Black "Merkon, Oseb"]
[Result "1-0"]
[ECO "B02"]
[WhiteElo "2077"]
[BlackElo "1930"]
[PlyCount "103"]
[EventDate "2019.10.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 192 Extra"]
[Source "Chessbase"]
[SourceDate "2019.11.06"]
[SourceVersion "1"]
[SourceVersionDate "2019.11.06"]
[SourceQuality "1"]

1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. d4 cxd4 5. cxd4 e6 6. Nf3 Be7 7. Nc3 d6 8. Bd3 Nc6 9. Nxd5 exd5 10. h3 dxe5 11. dxe5 Bb4+ 12. Bd2 Qa5 13. 0-0 Bxd2 14. Nxd2 Be6 15. f4 Qb6+ 16. Rf2 0-0-0 17. Nf3 g6 18. a3 Kb8 19. Rc1 Rc8 20. b4 Nd4 21. Kf1 Bf5 22. Rxc8+ Rxc8 23. Rd2 Bxd3+ 24. Rxd3 Nf5 25. Nd4 Nxd4 26. Rxd4 Rc4 27. Rxc4 Qb5 28. Qd3 Qxc4 29. Qxc4 dxc4 30. Ke2 b5 31. Ke3 Kc7 32. g4 Kd7 33. f5 Ke7 34. h4 h5 35. gxh5 gxh5 36. Ke4 Kd7 37. Kd4 Kc6 38. a4 bxa4 39. b5+ Kxb5 40. e6 fxe6 41. f6 Kb4 42. f7 e5+ 43. Kd5 c3 44. f8Q+ Kb3 45. Qb8+ Ka2 46. Qb4 c2 47. Qxa4+ Kb2 48. Qb4+ Ka2 49. Qc3 Kb1 50. Qb3+ Kc1 51. Kc4 Kd2 52. Qd3+ 1-0

[Event "Hoogeveen op 23rd"]
[Site "Hoogeveen"]
[Date "2019.10.19"]
[Round "1"]
[White "Merkon, Oseb"]
[Black "Tabak, Stefan"]
[Result "0-1"]
[ECO "A88"]
[WhiteElo "1930"]
[BlackElo "2181"]
[PlyCount "78"]
[EventDate "2019.10.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 192 Extra"]
[Source "Chessbase"]
[SourceDate "2019.11.06"]
[SourceVersion "1"]
[SourceVersionDate "2019.11.06"]
[SourceQuality "1"]

1. c4 f5 2. Nc3 Nf6 3. g3 g6 4. Bg2 Bg7 5. Nf3 d6 6. d4 0-0 7. 0-0 c6 8. Rb1 Qe8 9. b4 e5 10. e3 e4 11. Nd2 Nbd7 12. c5 d5 13. b5 g5 14. f3 exf3 15. Nxf3 h6 16. a4 Ne4 17. Nxe4 fxe4 18. Ne1 Nf6 19. Nc2 Bg4 20. Qe1 cxb5 21. axb5 Qh5 22. Rf2 Bf3 23. h3 g4 24. h4 Qf7 25. Ba3 Rfc8 26. Rd2 Nh5 27. Bxf3 exf3 28. e4 dxe4 29. Qxe4 Nf6 30. Qd3 Qc7 31. Kf2 Re8 32. Re1 Rxe1 33. Kxe1 Qxg3+ 34. Kf1 Re8 35. Ne3 Ne4 36. Rc2 Qh3+ 37. Kg1 g3 38. Nd1 f2+ 39. Rxf2 Nxf2 0-1

[Event "NED-ch U20 op"]
[Site "Borne"]
[Date "2019.08.10"]
[Round "9"]
[White "Merkon, Oseb"]
[Black "De Vries, Tobias"]
[Result "0-1"]
[ECO "D85"]
[WhiteElo "2013"]
[BlackElo "1868"]
[PlyCount "90"]
[EventDate "2019.08.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 191 Extra"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 d5 3. cxd5 Nxd5 4. d4 g6 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 0-0 8. Nf3 c5 9. 0-0 Nc6 10. Bb2 cxd4 11. Nxd4 Na5 12. Be2 b6 13. Qc2 Bb7 14. Nb3 Nc6 15. Rfd1 Qc7 16. Rac1 Bh6 17. Nd2 Rfd8 18. c4 Nd4 19. Bxd4 Rxd4 20. Bf3 Rc8 21. Nb3 Rxd1+ 22. Rxd1 Bf4 23. h3 Ba6 24. Be2 h5 25. g3 Be5 26. f4 Bd6 27. e5 Bc5+ 28. Kh2 Bb7 29. e6 Qc6 30. exf7+ Kxf7 31. Bd3 h4 32. gxh4 Be3 33. Rf1 Rd8 34. Nc1 Bxc1 35. Bxg6+ Qxg6 36. Rxc1 Be4 37. Qf2 Rg8 38. Rg1 Qxg1+ 39. Qxg1 Rxg1 40. Kxg1 Bd3 41. c5 bxc5 42. Kf2 Kg6 43. Ke3 c4 44. Kd4 Kh5 45. f5 Kxh4 0-1

[Event "NED-ch U20 op"]
[Site "Borne"]
[Date "2019.08.09"]
[Round "8"]
[White "Merkon, Oseb"]
[Black "Ypma, Jord"]
[Result "0-1"]
[ECO "A29"]
[WhiteElo "2013"]
[BlackElo "1984"]
[PlyCount "96"]
[EventDate "2019.08.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 191 Extra"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 e5 3. g3 d5 4. cxd5 Nxd5 5. Bg2 Nb6 6. Nf3 Nc6 7. a3 Be7 8. 0-0 0-0 9. e3 Bg4 10. h3 Bxf3 11. Bxf3 f5 12. Bxc6 bxc6 13. d4 e4 14. f3 Qd6 15. Kg2 Nd5 16. Nxd5 cxd5 17. Bd2 Qe6 18. Rc1 Bd6 19. f4 Kh8 20. Ba5 Qf7 21. Rc6 Rg8 22. Qc2 Rac8 23. Rc1 Qh5 24. Qd1 Qf7 25. Qc2 Qh5 26. Qd1 Qf7 27. h4 h6 28. Qc2 Qh5 29. Qd1 Qf7 30. Qe2 Rge8 31. a4 Re6 32. b4 Rg6 33. b5 Kh7 34. Ra6 Ra8 35. Rac6 Rc8 36. Be1 Ra8 37. a5 Qe7 38. Kh2 Rg4 39. Ra6 Qe8 40. Rac6 Qe7 41. a6 Rc8 42. Ba5 g5 43. hxg5 hxg5 44. Kg2 gxf4 45. Rh1+ Kg7 46. exf4 Bxf4 47. Rh3 Qa3 48. Bc3 Rh8 0-1

[Event "NED-ch U20 op"]
[Site "Borne"]
[Date "2019.08.09"]
[Round "7"]
[White "Vleming, Stefan"]
[Black "Merkon, Oseb"]
[Result "0-1"]
[ECO "D11"]
[WhiteElo "1760"]
[BlackElo "2013"]
[PlyCount "48"]
[EventDate "2019.08.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 191 Extra"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. e3 Bg4 5. h3 Bh5 6. g4 Bg6 7. Nh4 e6 8. Nc3 Nbd7 9. Bg2 dxc4 10. e4 Nxe4 11. Nxe4 Bxe4 12. Bxe4 Qxh4 13. Qc2 Bb4+ 14. Ke2 Nb6 15. Bf4 Qe7 16. h4 Bd6 17. Bg5 f6 18. Be3 g6 19. Rag1 0-0-0 20. f4 Nd5 21. Qxc4 Bxf4 22. Bxf4 Nxf4+ 23. Kf3 Nd5 24. Rc1 Qd6 0-1

[Event "NED-ch U20 op"]
[Site "Borne"]
[Date "2019.08.08"]
[Round "6"]
[White "Segers, Job"]
[Black "Merkon, Oseb"]
[Result "0-1"]
[ECO "B25"]
[WhiteElo "1618"]
[BlackElo "2013"]
[PlyCount "80"]
[EventDate "2019.08.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 191 Extra"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 e5 5. d3 Bg7 6. Nge2 Nge7 7. 0-0 0-0 8. Be3 d6 9. f4 f5 10. Qd2 Be6 11. fxe5 Nxe5 12. Nf4 Bf7 13. Ncd5 Nxd5 14. Nxd5 Bxd5 15. exd5 Ng4 16. Bg5 Qb6 17. c3 Ne5 18. Rab1 Rae8 19. Kh1 Qa6 20. Bf4 Nf7 21. b4 b6 22. Rf2 Be5 23. Bxe5 Nxe5 24. Bf1 Qb7 25. Bg2 Qf7 26. bxc5 bxc5 27. h3 Rb8 28. Rb3 Rxb3 29. axb3 Qb7 30. d4 cxd4 31. cxd4 Nf7 32. Qe3 Rb8 33. Rc2 Qxb3 34. Rc8+ Kg7 35. Qe8 Rxc8 36. Qxc8 Qxg3 37. Qd7 Qe1+ 38. Kh2 a5 39. Qa7 Qb4 40. Bf3 a4 0-1

[Event "NED-ch U20 op"]
[Site "Borne"]
[Date "2019.08.07"]
[Round "4"]
[White "Albers, Sasa"]
[Black "Merkon, Oseb"]
[Result "1-0"]
[ECO "B22"]
[WhiteElo "1889"]
[BlackElo "2013"]
[PlyCount "83"]
[EventDate "2019.08.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 191 Extra"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. c3 Nf6 4. e5 Nd5 5. Bc4 Nb6 6. Bb3 c4 7. Bc2 Qc7 8. Qe2 g5 9. Nxg5 Nxe5 10. Nf3 Bg7 11. Nxe5 Bxe5 12. d4 Bf6 13. a4 d5 14. g3 Be6 15. Bf4 Qd7 16. a5 Nc8 17. Ba4 b5 18. axb6 Nxb6 19. Bxd7+ Nxd7 20. Qc2 Bg4 21. Nd2 e5 22. Be3 Bh3 23. f4 exf4 24. Bxf4 0-0 25. Kf2 Bg7 26. g4 Bxg4 27. Rhg1 Bh5 28. Qa4 Nf6 29. Be5 Ng4+ 30. Rxg4 Bxg4 31. Rg1 f5 32. Bxg7 Kxg7 33. h3 Rae8 34. Nf3 Re4 35. hxg4 fxg4 36. Rxg4+ Kh8 37. Qd7 Rxg4 38. Qxg4 Rb8 39. Ne5 Rxb2+ 40. Ke3 h5 41. Qxh5+ Kg7 42. Qg6+ 1-0

[Event "NED-ch U20 op"]
[Site "Borne"]
[Date "2019.08.07"]
[Round "5"]
[White "Merkon, Oseb"]
[Black "Godde, Matthias"]
[Result "0-1"]
[ECO "A36"]
[WhiteElo "2013"]
[BlackElo "1989"]
[PlyCount "86"]
[EventDate "2019.08.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 191 Extra"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 g6 3. g3 c5 4. Bg2 Bg7 5. e4 d6 6. Nge2 0-0 7. 0-0 Nc6 8. d3 Ne8 9. Be3 Rb8 10. d4 cxd4 11. Nxd4 Nxd4 12. Bxd4 Bxd4 13. Qxd4 a6 14. f4 Ng7 15. Rad1 Be6 16. Nd5 Re8 17. h3 Qa5 18. b4 Qxa2 19. Ra1 Qb3 20. Rf3 Qc2 21. Ne3 Qb3 22. f5 Bd7 23. Nd5 Qc2 24. Rf2 Qb3 25. Kh2 Rbc8 26. Bf1 gxf5 27. Rb2 Qf3 28. Bg2 Qh5 29. Rf1 fxe4 30. Rbf2 f5 31. g4 fxg4 32. Qxe4 gxh3 33. Nxe7+ Rxe7 34. Qxe7 hxg2+ 35. Kxg2 Bh3+ 36. Kg1 Bxf1 37. Kxf1 Qh1+ 38. Ke2 Re8 39. Rf8+ Rxf8 40. Qxd6 Qe4+ 41. Kd2 Rf2+ 42. Kc3 Rc2+ 43. Kb3 Qxc4+ 0-1

[Event "NED-ch U20 op"]
[Site "Borne"]
[Date "2019.08.06"]
[Round "2"]
[White "Merkon, Oseb"]
[Black "Baselmans, Luuk"]
[Result "0-1"]
[ECO "A25"]
[WhiteElo "2013"]
[BlackElo "2250"]
[PlyCount "94"]
[EventDate "2019.08.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 191 Extra"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 Nc6 3. g3 Nf6 4. e4 Bc5 5. Bg2 0-0 6. Nge2 a6 7. d3 d6 8. 0-0 Be6 9. Be3 Nd7 10. Bxc5 Nxc5 11. b3 Qd7 12. d4 exd4 13. Nxd4 Bh3 14. f4 Rae8 15. Bxh3 Qxh3 16. Nxc6 bxc6 17. Qf3 a5 18. Rae1 h5 19. Re3 Re7 20. e5 f6 21. exf6 Rxe3 22. Qxe3 gxf6 23. f5 Qg4 24. Rf4 Qg5 25. Ne4 Nxe4 26. Qxe4 c5 27. Qe6+ Kg7 28. Kf2 Kh6 29. Qd7 Qg7 30. Qb5 Ra8 31. Qc6 Rf8 32. Qa6 Qe7 33. Qxa5 Qe5 34. Qd2 Kg7 35. g4 Rh8 36. Qe3 hxg4 37. Rxg4+ Kf7 38. Qxe5 fxe5 39. Rg2 Kf6 40. Ke3 Kxf5 41. Rf2+ Ke6 42. Ke4 c6 43. a4 Rh3 44. Rf3 d5+ 45. Ke3 d4+ 46. Ke4 Rh4+ 47. Kd3 e4+ 0-1

[Event "NED-ch U20 op"]
[Site "Borne"]
[Date "2019.08.06"]
[Round "3"]
[White "Vitharana, Annelies"]
[Black "Merkon, Oseb"]
[Result "0-1"]
[ECO "B33"]
[WhiteElo "1768"]
[BlackElo "2013"]
[PlyCount "98"]
[EventDate "2019.08.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 191 Extra"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 b5 9. Nd5 Be7 10. Nxe7 Nxe7 11. Bd3 h6 12. Bd2 Bb7 13. Qe2 d5 14. f3 0-0 15. c3 Ng6 16. g3 Qd6 17. 0-0-0 dxe4 18. fxe4 Qc6 19. Rhe1 Nd7 20. h4 Nc5 21. Bc2 Rac8 22. h5 Ne7 23. Kb1 Ne6 24. Bd3 Rfd8 25. Bc2 Rd7 26. Be3 Rcd8 27. Rxd7 Rxd7 28. Ka1 Nc5 29. Qg4 Qe6 30. Qf3 Qc6 31. Qg4 Rd6 32. Bc1 Nc8 33. Nb1 Nb6 34. Nd2 Nca4 35. Qf3 b4 36. Nb1 a5 37. g4 Nc5 38. g5 a4 39. cxb4 Ne6 40. Bd3 Nd4 41. Qe3 hxg5 42. Nc3 Nc4 43. Qg3 Nxb2 44. Bxb2 a3 45. Bxa3 Qxc3+ 46. Bb2 Nc2+ 47. Kb1 Qxe1+ 48. Qxe1 Nxe1 49. Be2 Rd2 0-1

[Event "NED-ch U20 op"]
[Site "Borne"]
[Date "2019.08.05"]
[Round "1"]
[White "Merkon, Oseb"]
[Black "Nies, Levi"]
[Result "1-0"]
[ECO "D31"]
[WhiteElo "2013"]
[BlackElo "1516"]
[PlyCount "101"]
[EventDate "2019.08.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 191 Extra"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. c4 e6 2. Nc3 d5 3. cxd5 exd5 4. d4 c6 5. g3 Bf5 6. Bg2 Qb6 7. Nf3 Nd7 8. 0-0 Bd6 9. a3 Ngf6 10. b4 a5 11. b5 cxb5 12. Qb3 a4 13. Qxb5 0-0 14. Nh4 Bg4 15. h3 Be6 16. Qd3 Rfc8 17. f4 Nc5 18. Nxd5 Nxd5 19. dxc5 Rxc5 20. Kh2 Rc3 21. Qd2 Qe3 22. Qe1 Qc5 23. e4 Ne3 24. Rf3 Nc2 25. Qxc3 Qxc3 26. Rxc3 Nxa1 27. e5 Be7 28. f5 Rc8 29. Bb2 Rxc3 30. Bxc3 Ba2 31. Bxa1 Bxa3 32. Bxb7 Bc1 33. Nf3 a3 34. Be4 Bb2 35. Bxb2 axb2 36. Nd2 g6 37. g4 gxf5 38. gxf5 Kg7 39. Kg3 h5 40. h4 f6 41. Kf4 fxe5+ 42. Kxe5 Kf7 43. Bb1 Bxb1 44. Nxb1 Ke7 45. f6+ Kf7 46. Kf5 Kf8 47. Nc3 Kf7 48. Ke5 Kf8 49. Ke6 Ke8 50. f7+ Kf8 51. Nb1 1-0

[Event "NED-ch U15"]
[Site "Rotterdam"]
[Date "2015.05.09"]
[Round "9"]
[White "Van Klaveren, Justus"]
[Black "Merkon, Oseb"]
[Result "0-1"]
[ECO "B01"]
[PlyCount "184"]
[EventDate "2015.05.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Nf6 3. d4 Nxd5 4. c4 Nb6 5. Nf3 Bg4 6. Be3 e5 7. Nbd2 exd4 8. Bxd4 Nc6 9. Bc3 Qe7+ 10. Qe2 f6 11. 0-0-0 Na4 12. Nb1 Nxc3 13. Nxc3 Ne5 14. Nd5 Qc5 15. b4 Bxf3 16. gxf3 Qc6 17. f4 0-0-0 18. fxe5 fxe5 19. Bg2 Kb8 20. Rhe1 Bxb4 21. Nxb4 Qxg2 22. f3 Qg5+ 23. Kb2 Qf6 24. Nd5 Qc6 25. Rd3 Qxc4 26. Qc2 Qb5+ 27. Qb3 Qc5 28. Rc1 Qd6 29. Rxc7 Qa6 30. Qc4 Rxd5 31. Qxa6 bxa6 32. Rxd5 Kxc7 33. Rxe5 Kd6 34. Ra5 Rb8+ 35. Kc3 Rb6 36. Kd4 Rc6 37. Kd3 Kc7 38. h4 Kb6 39. Ra4 Kb5 40. Rf4 h6 41. Re4 Rd6+ 42. Ke3 Rd1 43. Rg4 Re1+ 44. Kf4 Re7 45. Kg3 a5 46. a4+ Kc5 47. Kf2 Kd5 48. Kf1 Rb7 49. Kf2 Ke5 50. Rc4 Kd5 51. Rf4 Ke6 52. Rc4 Rb4 53. Rc6+ Kf7 54. Ra6 Rxa4 55. Rxa7+ Kg6 56. Kg3 Ra1 57. Kg4 a4 58. Ra6+ Kh7 59. h5 a3 60. Kf5 a2 61. f4 Kh8 62. Ra8+ Kh7 63. Ra6 Rh1 64. Rxa2 Rxh5+ 65. Kg4 Rb5 66. Ra7 h5+ 67. Kh4 Kh6 68. Ra4 Rb1 69. Ra3 Rh1+ 70. Rh3 Rf1 71. Kg3 Rg1+ 72. Kh2 Rg4 73. Rf3 Kg6 74. f5+ Kf6 75. Kh3 Rg5 76. Kh4 Rxf5 77. Ra3 g6 78. Ra6+ Kg7 79. Ra7+ Kh6 80. Ra6 Rb5 81. Rc6 Rb4+ 82. Kg3 h4+ 83. Kh3 Kh5 84. Rc8 Rb3+ 85. Kh2 g5 86. Ra8 Rb2+ 87. Kh1 h3 88. Rh8+ Kg4 89. Ra8 Rf2 90. Kg1 Kg3 91. Ra3+ Rf3 92. Ra2 Rb3 0-1

[Event "NED-ch U15"]
[Site "Rotterdam"]
[Date "2015.05.08"]
[Round "8"]
[White "Merkon, Oseb"]
[Black "Reichardt, Robin"]
[Result "0-1"]
[ECO "A17"]
[BlackElo "1707"]
[PlyCount "120"]
[EventDate "2015.05.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 e6 3. a3 b6 4. g3 Bb7 5. Nf3 c5 6. Bg2 Nc6 7. d3 Be7 8. Bf4 d6 9. Rb1 Nd4 10. e4 e5 11. Bd2 Nxf3+ 12. Bxf3 0-0 13. Be2 Nd7 14. f4 f5 15. Bf3 exf4 16. Bxf4 g5 17. Be3 Ne5 18. Nd5 Bxd5 19. exd5 Nxf3+ 20. Qxf3 Bf6 21. 0-0 Bg7 22. Rf2 h6 23. Kh1 Qd7 24. Qh5 Qe8 25. Qe2 Qe5 26. Qd2 Rae8 27. Rf3 Qf6 28. b4 Qc3 29. Qxc3 Bxc3 30. Bg1 Be5 31. bxc5 bxc5 32. Rb7 Ra8 33. Rf1 f4 34. gxf4 Bxf4 35. d4 cxd4 36. Bxd4 Rf7 37. Rxf7 Kxf7 38. Be3 Kg6 39. Bxf4 Rf8 40. Kg2 Rxf4 41. Rxf4 gxf4 42. Kf3 Kf5 43. a4 a5 44. h3 h5 45. h4 Ke5 46. Kf2 Kd4 47. Kf3 Kxc4 48. Kxf4 Kxd5 49. Kg5 Ke4 50. Kxh5 d5 51. Kg6 d4 52. h5 d3 53. h6 d2 54. h7 d1Q 55. h8Q Qg4+ 56. Kf7 Qd7+ 57. Kg6 Qf5+ 58. Kh6 Qh3+ 59. Kg7 Qxh8+ 60. Kxh8 Kd4 0-1

[Event "NED-ch U15"]
[Site "Rotterdam"]
[Date "2015.05.07"]
[Round "7"]
[White "Wedda, Dries"]
[Black "Merkon, Oseb"]
[Result "1/2-1/2"]
[ECO "E01"]
[PlyCount "64"]
[EventDate "2015.05.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 c5 5. cxd5 exd5 6. Bg2 cxd4 7. Nxd4 Bb4+ 8. Bd2 Bxd2+ 9. Nxd2 0-0 10. 0-0 Re8 11. e3 Nc6 12. N2b3 Bg4 13. Qd2 Rc8 14. f3 Bh5 15. Rac1 Bg6 16. Bh3 Rc7 17. Rfe1 Ne5 18. Bf1 a6 19. Kf2 Rce7 20. Nc5 b6 21. Nxa6 Neg4+ 22. Kg1 Ne5 23. Nb4 Qd6 24. Nbc6 Rc7 25. Nxe5 Qxe5 26. Rxc7 Qxc7 27. Bd3 Bxd3 28. Qxd3 Qa7 29. a3 Qa5 30. Rc1 Qa7 31. Kf2 Qe7 32. Ne2 Nd7 1/2-1/2

[Event "NED-ch U15"]
[Site "Rotterdam"]
[Date "2015.05.06"]
[Round "6"]
[White "Merkon, Oseb"]
[Black "Omota, Vlad"]
[Result "1-0"]
[ECO "A21"]
[PlyCount "67"]
[EventDate "2015.05.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 Bb4 3. Nd5 Bc5 4. d3 c6 5. Be3 cxd5 6. Bxc5 d6 7. Ba3 Be6 8. Qb3 Qa5+ 9. Bb4 Qb6 10. cxd5 Bxd5 11. Qa3 a5 12. Bxd6 Nd7 13. e4 Ra6 14. d4 Qxd6 15. Bxa6 Qxa3 16. bxa3 Bxe4 17. f3 bxa6 18. fxe4 Ngf6 19. dxe5 Nxe4 20. Nf3 0-0 21. 0-0 Re8 22. Rad1 Nb6 23. Rd4 Nc3 24. Rd6 Ncd5 25. Rd1 Ne3 26. Rb1 Nbc4 27. Rxa6 Nxa3 28. Rb7 Nac4 29. Raa7 Rf8 30. Ng5 Nxe5 31. Rxa5 N5g4 32. h3 Nf6 33. Raa7 h6 34. Nxf7 1-0

[Event "NED-ch U15"]
[Site "Rotterdam"]
[Date "2015.05.05"]
[Round "5"]
[White "Emans, Job"]
[Black "Merkon, Oseb"]
[Result "1-0"]
[ECO "B01"]
[PlyCount "85"]
[EventDate "2015.05.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Nf6 3. d4 Nxd5 4. c4 Nb6 5. Nf3 Bg4 6. c5 Nd5 7. Qb3 Bc8 8. Bc4 e6 9. 0-0 Be7 10. Nc3 Nxc3 11. bxc3 0-0 12. Bf4 Nc6 13. Qc2 h6 14. Rfe1 Bd7 15. Rab1 Na5 16. Bd3 Bc6 17. Ne5 Bg5 18. Nxc6 Nxc6 19. Bxg5 Qxg5 20. Rxb7 Qe7 21. Be4 Nd8 22. Rxc7 Qxc7 23. Bxa8 Nc6 24. Bxc6 Qxc6 25. Rb1 Re8 26. h3 e5 27. Re1 g6 28. f3 Kg7 29. Qe4 Qc8 30. Qd5 exd4 31. Rxe8 Qxe8 32. cxd4 h5 33. c6 Kh7 34. c7 h4 35. Kf2 Qc8 36. Qd8 Qb7 37. c8Q Qb2+ 38. Ke3 Qa3+ 39. Ke4 f5+ 40. Kd5 Qxa2+ 41. Qc4 Qxg2 42. Qcc7+ Kh6 43. Qxh4# 1-0

[Event "NED-ch U15"]
[Site "Rotterdam"]
[Date "2015.05.04"]
[Round "4"]
[White "Merkon, Oseb"]
[Black "De Boer, Eelke"]
[Result "0-1"]
[ECO "A84"]
[BlackElo "1912"]
[PlyCount "118"]
[EventDate "2015.05.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. c4 f5 2. d4 Nf6 3. Bg5 g6 4. Bxf6 exf6 5. e3 c6 6. Nc3 d5 7. Qb3 dxc4 8. Bxc4 Bd6 9. a4 Kf8 10. h4 h5 11. 0-0-0 Kg7 12. e4 fxe4 13. Nxe4 a6 14. Nc5 b5 15. Ne6+ Bxe6 16. Bxe6 Qc7 17. Kb1 Ra7 18. Rc1 Qa5 19. axb5 axb5 20. Ne2 Na6 21. Nc3 Rha8 22. Na2 Qd2 23. Qe3 Qxe3 24. fxe3 Nb4 25. Nxb4 Bxb4 26. Rhd1 Ra1+ 27. Kc2 Rxc1+ 28. Kxc1 Re8 29. Bd7 Rxe3 30. Bxc6 Re2 31. d5 Bd6 32. Bxb5 Rxg2 33. Re1 Be5 34. Bc6 Bxb2+ 35. Kd1 Be5 36. Re4 Rg4 37. Ra4 Rxa4 38. Bxa4 Bg3 39. Ke2 Bxh4 40. d6 Bg3 41. d7 Bc7 42. Kf3 f5 43. Bc2 Kf6 44. Bd3 g5 45. Kg2 g4 46. Be2 Kg5 47. Bd3 Kf4 48. Be2 h4 49. Bf1 h3+ 50. Kh1 Kg3 51. Kg1 Bb6+ 52. Kh1 Kf2 53. d8Q Bxd8 54. Kh2 Kxf1 55. Kh1 f4 56. Kh2 g3+ 57. Kh1 g2+ 58. Kh2 g1Q+ 59. Kxh3 Qg3# 0-1

[Event "NED-ch U15"]
[Site "Rotterdam"]
[Date "2015.05.03"]
[Round "2"]
[White "Merkon, Oseb"]
[Black "Kutchoukov, Daniel"]
[Result "1-0"]
[ECO "A25"]
[BlackElo "1471"]
[PlyCount "73"]
[EventDate "2015.05.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 Nc6 3. g3 f5 4. Bg2 Nf6 5. d3 Bb4 6. Bd2 0-0 7. Nd5 Bxd2+ 8. Qxd2 d6 9. f4 Be6 10. fxe5 dxe5 11. Nxf6+ Qxf6 12. Bxc6 bxc6 13. 0-0-0 Rfd8 14. Qc3 Qg5+ 15. Kc2 Qe3 16. Rd2 e4 17. Nh3 Rd4 18. Nf4 Bf7 19. Ng2 exd3+ 20. exd3 Qe5 21. Re1 Qd6 22. Nh4 g6 23. Nf3 Rg4 24. Qe5 Qxe5 25. Nxe5 Rd4 26. Nxc6 Rd6 27. Ne5 Re8 28. Nxf7 Kxf7 29. Rxe8 Kxe8 30. Re2+ Kf7 31. Kc3 Re6 32. Rf2 Kf6 33. d4 a5 34. c5 c6 35. b4 a4 36. b5 cxb5 37. Kb4 1-0

[Event "NED-ch U15"]
[Site "Rotterdam"]
[Date "2015.05.03"]
[Round "3"]
[White "Wouters, Colin"]
[Black "Merkon, Oseb"]
[Result "1-0"]
[ECO "B01"]
[PlyCount "97"]
[EventDate "2015.05.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Nf6 3. Bb5+ Bd7 4. Be2 Nxd5 5. d4 Bf5 6. c4 Nb6 7. Nc3 Nc6 8. Nf3 e6 9. 0-0 Bb4 10. a3 Bxc3 11. bxc3 Na5 12. c5 Nd5 13. Bd2 Nc6 14. c4 Nf6 15. Bg5 h6 16. Bxf6 Qxf6 17. d5 Ne5 18. Nxe5 Qxe5 19. Re1 0-0 20. Qb3 Rab8 21. Rad1 Rfd8 22. Bd3 Qf6 23. Bxf5 Qxf5 24. Qg3 Rbc8 25. Re5 Qc2 26. Qd3 Qxd3 27. Rxd3 exd5 28. cxd5 Re8 29. Rde3 Kf8 30. Kf1 Rxe5 31. Rxe5 Re8 32. Rxe8+ Kxe8 33. Ke2 Kd7 34. Kd3 f5 35. Kd4 c6 36. Ke5 b6 37. cxb6 axb6 38. dxc6+ Kxc6 39. Kxf5 Kd5 40. Kg6 b5 41. Kxg7 Kc4 42. f4 Kb3 43. f5 Kxa3 44. f6 b4 45. f7 b3 46. f8Q+ Ka2 47. Qf2+ b2 48. Qxb2+ Kxb2 49. Kxh6 1-0

[Event "NED-ch U15"]
[Site "Rotterdam"]
[Date "2015.05.02"]
[Round "1"]
[White "Nguyen, Kevin"]
[Black "Merkon, Oseb"]
[Result "1-0"]
[ECO "B01"]
[WhiteElo "2090"]
[PlyCount "109"]
[EventDate "2015.05.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Nf6 3. d4 Nxd5 4. c4 Nb6 5. Nf3 Bg4 6. c5 Nd5 7. Qb3 Bc8 8. Bc4 e6 9. 0-0 Nc6 10. Re1 Na5 11. Qa4+ Nc6 12. Nc3 Nxc3 13. bxc3 Bd7 14. Qc2 Na5 15. Bd3 h6 16. Ne5 Nc6 17. Ng6 Rg8 18. d5 Ne7 19. c4 Nxg6 20. Bxg6 Qf6 21. Bh7 Qxa1 22. Bxg8 Bxc5 23. Qe2 Qf6 24. Bb2 Bd4 25. dxe6 Bxe6 26. Bxd4 Qxd4 27. Bxf7+ Kxf7 28. Qxe6+ Kf8 29. h3 Qf6 30. Qd5 Rb8 31. Re3 Rd8 32. Qxb7 Rd1+ 33. Kh2 Qf4+ 34. Rg3 Rd2 35. Qxa7 Rxf2 36. Qxf2 Qxf2 37. Rf3+ Qxf3 38. gxf3 Ke7 39. Kg3 Kd6 40. a4 Kc6 41. Kg4 Kb6 42. Kh5 Ka5 43. Kg6 Kxa4 44. Kxg7 Kb4 45. f4 Kxc4 46. f5 Kd3 47. f6 c5 48. f7 c4 49. f8Q c3 50. Qf4 c2 51. Qc1 h5 52. Kg6 h4 53. Kf5 Ke2 54. Qxc2+ Kf1 55. Kf4 1-0

