[Event "EU-ch U21"]
[Site "Groningen"]
[Date "1980.01.04"]
[Round "13"]
[White "Merchiers, Koen"]
[Black "Van der Heijden, Ton"]
[Result "1/2-1/2"]
[ECO "B40"]
[PlyCount "117"]
[EventDate "1979.12.20"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Bd3 d6 6. c3 Be7 7. 0-0 0-0 8. Nd2 Qc7 9. Kh1 a6 10. f4 b6 11. N2f3 Bb7 12. Qe1 Nc6 13. Bd2 g6 14. Rc1 e5 15. Ne2 exf4 16. Nxf4 Ne5 17. Bc2 Nc4 18. Ng5 Qc5 19. Nfe6 fxe6 20. Nxe6 Qc6 21. Nxf8 Rxf8 22. Bh6 Re8 23. Qf2 Ne5 24. Bb3+ Kh8 25. Rce1 Nxe4 26. Qe2 Qc8 27. Rf4 Nc5 28. Bf7 Rd8 29. Rff1 Ne4 30. Qc2 Ng3+ 31. hxg3 Qh3+ 32. Kg1 Qxh6 33. Be6 Bg5 34. Bh3 Rf8 35. Rxf8+ Qxf8 36. Qa4 Qe7 37. Qd4 Kg8 38. Rf1 Nf3+ 39. Rxf3 Bxf3 40. Qc4+ d5 41. Qc8+ Kg7 42. gxf3 Qe3+ 43. Kh2 Qxf3 44. Qxa6 Qf2+ 45. Bg2 Qxb2 46. Qb7+ Kh6 47. Qxd5 Qxc3 48. Qd6 Qc5 49. Qd7 Be7 50. Qd2+ Kg7 51. Qd5 Qc7 52. Qb7 Bd6 53. Qxc7+ Bxc7 54. Bc6 Kf6 55. Kg2 h5 56. Be8 Kg7 57. Kh3 Kh6 58. g4 hxg4+ 59. Kxg4 1/2-1/2

[Event "EU-ch U21"]
[Site "Groningen"]
[Date "1980.01.03"]
[Round "12"]
[White "James, Stephan"]
[Black "Merchiers, Koen"]
[Result "1/2-1/2"]
[ECO "C41"]
[PlyCount "90"]
[EventDate "1979.12.20"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 d6 3. d4 Bg4 4. Be2 Nd7 5. 0-0 Ngf6 6. Nc3 Be7 7. Be3 0-0 8. a4 Ne8 9. dxe5 Nxe5 10. Nxe5 Bxe2 11. Qxe2 dxe5 12. Rfd1 Nd6 13. Rd5 f5 14. exf5 Rxf5 15. Bc5 Qd7 16. Rad1 Qe6 17. Bxd6 cxd6 18. Ne4 Raf8 19. f3 Qg6 20. Kh1 Rh5 21. Nxd6 Qg3 22. h3 Rf6 23. Ne4 Rxh3+ 24. Kg1 Qh2+ 25. Kf1 Rfxf3+ 26. gxf3 Qh1+ 27. Kf2 Rh2+ 28. Ke3 Rxe2+ 29. Kxe2 Qg2+ 30. Nf2 Bh4 31. Rf1 Bg3 32. Rd8+ Kf7 33. Rd7+ Kg6 34. Rxb7 e4 35. Rb3 exf3+ 36. Rxf3 h5 37. Rd1 Bxf2 38. Rxf2 Qe4+ 39. Kf1 Qxa4 40. b3 Qb4 41. Rd7 Qb5+ 42. Rd3 Kh6 43. c4 Qb4 44. Rc2 Qf8+ 45. Ke1 Qf5 1/2-1/2

[Event "EU-ch U21"]
[Site "Groningen"]
[Date "1980.01.01"]
[Round "11"]
[White "Merchiers, Koen"]
[Black "Alexopoulos, Georgios"]
[Result "0-1"]
[ECO "B06"]
[BlackElo "2200"]
[PlyCount "62"]
[EventDate "1979.12.20"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 g6 2. d4 Bg7 3. c3 b6 4. Bc4 Bb7 5. Nf3 d5 6. exd5 Bxd5 7. Bxd5 Qxd5 8. 0-0 Nf6 9. Re1 e6 10. Bf4 c6 11. Nbd2 0-0 12. Be5 c5 13. dxc5 Qxc5 14. Nb3 Qc8 15. Qc2 Nc6 16. Nbd4 Nxe5 17. Nxe5 Qb7 18. Rad1 Rfd8 19. Qe2 Rac8 20. Rd3 Nh5 21. Rf3 Bxe5 22. Qxe5 Qd5 23. Qe3 Qxa2 24. g4 Ng7 25. Qh6 Qxb2 26. Rh3 Rxc3 27. Qxh7+ Kf8 28. Qh8+ Ke7 29. Qxg7 Rxd4 30. Rh8 Rxg4+ 31. Kf1 Qb5+ 0-1

[Event "EU-ch U21"]
[Site "Groningen"]
[Date "1979.12.31"]
[Round "10"]
[White "Lobron, Eric"]
[Black "Merchiers, Koen"]
[Result "1-0"]
[ECO "C10"]
[PlyCount "43"]
[EventDate "1979.12.20"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Nd7 5. Nf3 Ngf6 6. Nxf6+ Nxf6 7. Bg5 Be7 8. Bd3 0-0 9. Qe2 c5 10. 0-0-0 cxd4 11. h4 Nd5 12. Qe4 f5 13. Qxd4 Bf6 14. Bxf6 Qxf6 15. Bc4 Qxd4 16. Rxd4 Nb6 17. Bb3 h6 18. Re1 Kf7 19. a4 Rb8 20. a5 Na8 21. Ne5+ Kf6 22. Rd7 1-0

[Event "EU-ch U21"]
[Site "Groningen"]
[Date "1979.12.29"]
[Round "9"]
[White "Merchiers, Koen"]
[Black "Kaspret, Guido"]
[Result "0-1"]
[ECO "B21"]
[PlyCount "158"]
[EventDate "1979.12.20"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. f4 e6 4. Nf3 d5 5. g3 dxe4 6. Nxe4 Be7 7. Bg2 Nf6 8. Nf2 0-0 9. 0-0 Qc7 10. d3 Bd7 11. Bd2 Rad8 12. a4 Nd5 13. Ng4 Qb6 14. a5 Qa6 15. Nfe5 Be8 16. f5 Nxe5 17. Nxe5 Bf6 18. Nc4 Bb5 19. fxe6 Bxc4 20. Rxf6 Nxf6 21. e7 Bd5 22. exf8Q+ Kxf8 23. Bxd5 Rxd5 24. Qf3 Qe6 25. Re1 Qg4 26. Qe3 Qd4 27. Qxd4 Rxd4 28. Bc3 Rd5 29. Kg2 Nd7 30. b4 b6 31. axb6 axb6 32. bxc5 bxc5 33. Rb1 f6 34. Rb7 Ke7 35. Rb5 Ke6 36. Be1 h5 37. Bf2 g5 38. Rb3 Kf5 39. h3 Ke5 40. Kf3 f5 41. c4 Rd6 42. Be3 Kf6 43. Ke2 Re6 44. Kf2 Ra6 45. Bc1 Ne5 46. Bb2 Ke6 47. Ke3 Nc6 48. Rb5 Kd6 49. Bf6 g4 50. h4 Ra2 51. Rb2 Ra3 52. Bg7 Nb4 53. Rd2 Ke7 54. Be5 Ke6 55. Bc7 Ra1 56. Re2 Kd7 57. Be5 Rd1 58. Rd2 Re1+ 59. Re2 Rf1 60. Kd2 Nc6 61. Bf4 Nd4 62. Rg2 Ne6 63. Be5 f4 64. Ke2 Rf3 65. Bxf4 Rxf4 66. gxf4 Nxf4+ 67. Kf2 Nxg2 68. Kxg2 Ke6 69. Kf2 Ke5 70. Ke3 g3 71. Kf3 Kd4 72. Kxg3 Kxd3 73. Kf4 Kxc4 74. Kg5 Kd5 75. Kxh5 c4 76. Kg6 c3 77. h5 c2 78. h6 c1Q 79. h7 Qc3 0-1

[Event "EU-ch U21"]
[Site "Groningen"]
[Date "1979.12.28"]
[Round "8"]
[White "Borg, Geoffrey D"]
[Black "Merchiers, Koen"]
[Result "1-0"]
[ECO "C17"]
[PlyCount "39"]
[EventDate "1979.12.20"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. Qg4 f5 6. Qxg7 Qe7 7. Qxh8 Qf7 8. Nf3 cxd4 9. a3 dxc3 10. axb4 cxb2 11. Bxb2 Nd7 12. Bb5 Qg6 13. 0-0 Kf7 14. Bc1 Nf8 15. Be3 h6 16. Bc5 Bd7 17. Bxd7 Nxd7 18. Nh4 Qg5 19. f4 Qg4 20. h3 1-0

[Event "EU-ch U21"]
[Site "Groningen"]
[Date "1979.12.27"]
[Round "7"]
[White "Karp, Michel"]
[Black "Merchiers, Koen"]
[Result "0-1"]
[ECO "C13"]
[PlyCount "98"]
[EventDate "1979.12.20"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Nf6 5. Bg5 Be7 6. Nxf6+ Bxf6 7. Bxf6 Qxf6 8. Nf3 Nc6 9. Bb5 Bd7 10. c4 0-0 11. 0-0 Rad8 12. Qe2 a6 13. Bxc6 Bxc6 14. Rad1 Bxf3 15. Qxf3 Qxf3 16. gxf3 Rd6 17. Rd2 Rfd8 18. Rfd1 Kf8 19. Kf1 g5 20. Ke2 Ke7 21. Ke3 Kf6 22. b4 Rg8 23. a4 c6 24. Rb1 Rgd8 25. Ke4 h6 26. Rd3 Ke7 27. Rbd1 f5+ 28. Ke3 Kf6 29. f4 Rg8 30. fxg5+ hxg5 31. f3 Rh8 32. Rh1 Rh3 33. Ke2 f4 34. Rd2 Kf5 35. Kf2 Rd7 36. Kg2 g4 37. fxg4+ Kxg4 38. Re1 Rdh7 39. Kg1 Rb3 40. b5 f3 41. bxc6 bxc6 42. d5 cxd5 43. cxd5 exd5 44. Rxd5 Rb2 45. Re4+ Kh3 46. Rd3 Rg7+ 47. Kf1 Kxh2 48. Rh4+ Kg3 49. Re4 Rh7 0-1

[Event "EU-ch U21"]
[Site "Groningen"]
[Date "1979.12.26"]
[Round "6"]
[White "Merchiers, Koen"]
[Black "Ferreira, Antonio"]
[Result "0-1"]
[ECO "B20"]
[PlyCount "96"]
[EventDate "1979.12.20"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c5 2. g3 d5 3. exd5 Qxd5 4. Nf3 Bg4 5. Bg2 Qe4+ 6. Kf1 Nc6 7. Nc3 Qe6 8. h3 Bh5 9. d3 Qd7 10. Be3 e6 11. Ne4 b6 12. Qd2 Be7 13. Re1 Nf6 14. Nxf6+ Bxf6 15. b3 h6 16. Bf4 0-0 17. g4 Bg6 18. g5 hxg5 19. Bxg5 Bxg5 20. Qxg5 Qe7 21. h4 Qxg5 22. Nxg5 Rac8 23. Bxc6 Rxc6 24. h5 Bf5 25. Nf3 f6 26. Nh4 Bh7 27. Re3 Kf7 28. Rg3 Rd6 29. Ng6 Rg8 30. c4 Rgd8 31. Ke2 e5 32. Rhg1 Ke6 33. Re3 Rd4 34. Rgg3 Re8 35. f4 Bxg6 36. Rxg6 Rxf4 37. Rxg7 Rh4 38. Rxa7 Rh2+ 39. Kf3 Rh8 40. Re2 Rh3+ 41. Kf2 Rxd3 42. Ra6 Rd6 43. Re3 Rxh5 44. Rg3 Rh2+ 45. Ke1 Kf5 46. Ra8 Kf4 47. Rg1 Rhd2 48. Rag8 Rd1+ 0-1

[Event "EU-ch U21"]
[Site "Groningen"]
[Date "1979.12.24"]
[Round "5"]
[White "Merchiers, Koen"]
[Black "Hjartarson, Johann"]
[Result "0-1"]
[ECO "B24"]
[BlackElo "2270"]
[PlyCount "86"]
[EventDate "1979.12.20"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c5 2. g3 Nc6 3. Bg2 g6 4. Ne2 Bg7 5. 0-0 d6 6. Nbc3 Rb8 7. a4 a6 8. f4 e6 9. Re1 b5 10. axb5 axb5 11. e5 d5 12. d4 c4 13. g4 Nge7 14. Ng3 b4 15. Na4 Ra8 16. Be3 0-0 17. g5 Qc7 18. Qd2 Ba6 19. Nc5 Bb7 20. h4 Rfb8 21. h5 Bc8 22. Bh3 Nf5 23. Bxf5 exf5 24. Qg2 Ne7 25. Qh2 Ra5 26. Kf2 Rba8 27. Rxa5 Rxa5 28. Rh1 Ra2 29. hxg6 hxg6 30. Qh7+ Kf8 31. Rb1 c3 32. bxc3 Rxc2+ 33. Ne2 bxc3 34. Kf3 Qa5 35. Qh1 Nc6 36. Qd1 Ra2 37. Rc1 Ra3 38. Nb3 Qa4 39. Rxc3 Ba6 40. Nec1 Bc4 41. Qc2 Kg8 42. Nc5 Qxc2 43. Rxc2 Nxd4+ 0-1

[Event "EU-ch U21"]
[Site "Groningen"]
[Date "1979.12.23"]
[Round "4"]
[White "Motwani, Paul"]
[Black "Merchiers, Koen"]
[Result "1-0"]
[ECO "C09"]
[PlyCount "115"]
[EventDate "1979.12.20"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 exd5 5. Ngf3 Nc6 6. Bb5 Bd6 7. dxc5 Bxc5 8. Nb3 Bd6 9. Bg5 Nge7 10. 0-0 0-0 11. Nfd4 Qc7 12. g3 f6 13. Be3 Ne5 14. Be2 a6 15. Nd2 N7g6 16. f4 Nc4 17. Nxc4 dxc4 18. b3 Kh8 19. Bxc4 Re8 20. Re1 Bh3 21. Qh5 Qc5 22. Qxc5 Bxc5 23. c3 Rad8 24. a4 Nf8 25. Kf2 Bg4 26. Be2 Bxe2 27. Rxe2 Rd5 28. Rd1 Ne6 29. Red2 Nc7 30. Nc2 Bxe3+ 31. Nxe3 Rxd2+ 32. Rxd2 Ne6 33. b4 Kg8 34. Rd7 b5 35. axb5 axb5 36. Rb7 Rc8 37. Nd5 Ra8 38. h4 Ra2+ 39. Kf3 Ra3 40. Ke3 Ra1 41. Rxb5 Rg1 42. Kf2 Rd1 43. Rb8+ Kf7 44. Rb7+ Kf8 45. Ne3 Rd3 46. f5 Nd8 47. Rc7 Nf7 48. Ke2 Ne5 49. b5 Ke8 50. b6 Kd8 51. Rxg7 Kc8 52. Rxh7 Rxc3 53. Rc7+ Rxc7 54. bxc7 Kxc7 55. Nd5+ Kd6 56. Nxf6 Ke7 57. Ne4 Kf7 58. Ke3 1-0

[Event "EU-ch U21"]
[Site "Groningen"]
[Date "1979.12.22"]
[Round "3"]
[White "Buechi, Marc"]
[Black "Merchiers, Koen"]
[Result "0-1"]
[ECO "A81"]
[PlyCount "68"]
[EventDate "1979.12.20"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. Nf3 e6 2. g3 f5 3. Nc3 Nf6 4. d4 d6 5. Bg2 Be7 6. 0-0 0-0 7. Qe1 Nbd7 8. e4 fxe4 9. Nxe4 Nxe4 10. Qxe4 Nf6 11. Qe2 c6 12. Be3 Qe8 13. Rfe1 Qh5 14. Rad1 Bd7 15. Rd3 Rae8 16. Bf4 Nd5 17. Bd2 Rf5 18. c4 Nb6 19. Re3 Ref8 20. Nh4 Qxe2 21. R1xe2 Bxh4 22. gxh4 Nxc4 23. Rg3 Nxd2 24. Rxd2 Rh5 25. Rg4 d5 26. Rd3 Rhf5 27. Rdg3 g6 28. h5 Rxh5 29. Bf3 Rhf5 30. Kg2 e5 31. dxe5 Rxf3 32. Rxf3 Bxg4 33. Rxf8+ Kxf8 34. Kg3 Bf5 0-1

[Event "EU-ch U21"]
[Site "Groningen"]
[Date "1979.12.21"]
[Round "2"]
[White "Merchiers, Koen"]
[Black "Hoeksema, Hendrik Pieter"]
[Result "0-1"]
[ECO "B20"]
[PlyCount "72"]
[EventDate "1979.12.20"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c5 2. g3 Nc6 3. Bg2 g6 4. Ne2 Bg7 5. 0-0 e6 6. c3 d5 7. exd5 exd5 8. Nf4 Nge7 9. Re1 0-0 10. d3 Qd6 11. Na3 a6 12. Be3 b5 13. Rc1 Bb7 14. Nc2 Rad8 15. a3 a5 16. h4 d4 17. cxd4 cxd4 18. Bd2 Nf5 19. Bxc6 Qxc6 20. Kh2 Qb6 21. Ng2 Ba8 22. Rg1 Rfe8 23. Na1 Rd7 24. Nb3 a4 25. Ba5 Qb8 26. Nc5 Rde7 27. Bb4 Re2 28. Na6 Qe5 29. Rc5 Bd5 30. f4 Qe3 31. Qe1 Bxg2 32. Rxg2 Rxe1 33. Bd2 Rh1+ 34. Kxh1 Nxg3+ 35. Kh2 Nf1+ 36. Kh1 Nxd2 0-1

[Event "EU-ch U21"]
[Site "Groningen"]
[Date "1979.12.20"]
[Round "1"]
[White "Curtin, Eugene"]
[Black "Merchiers, Koen"]
[Result "1-0"]
[ECO "A96"]
[PlyCount "93"]
[EventDate "1979.12.20"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. d4 e6 2. c4 f5 3. Nf3 Nf6 4. g3 Be7 5. Bg2 0-0 6. 0-0 d6 7. Nc3 a6 8. Qc2 Nbd7 9. b3 Qe8 10. Ng5 Bd8 11. d5 Nc5 12. b4 Nce4 13. Ncxe4 fxe4 14. Nxe4 exd5 15. Nxf6+ Bxf6 16. Bxd5+ Kh8 17. Bb2 Bf5 18. Qd2 Bxb2 19. Qxb2 Bh3 20. Rfe1 c6 21. Bf3 Rf6 22. Qd4 Qf7 23. Bg2 Be6 24. Rac1 Rf8 25. f4 Rh6 26. Bf3 Qf5 27. e4 Qh3 28. Qf2 Bg4 29. Rc2 Kg8 30. Bh1 Bd7 31. c5 Qh5 32. Rd2 Qf7 33. cxd6 Qc4 34. Qc5 Qf7 35. e5 Re6 36. Rf2 g6 37. Qc4 Rfe8 38. Rfe2 Kg7 39. Bf3 h5 40. Bg2 Qf5 41. Qe4 Qg4 42. Re3 h4 43. h3 Qf5 44. g4 Qf8 45. Qf3 Qh8 46. f5 gxf5 47. gxf5 1-0

