[Event "11th ECI tournament"]
[Site "Sas van Gent"]
[Date "1984.08.09"]
[Round "1"]
[White "Van Wonterghem, Geert"]
[Black "Petri, Peter"]
[Result "1-0"]
[ECO "A01"]
[Opening "Nimzovich-Larsen attack: modern variation"]
[Source "M. Ploeger, ECI toernooiboek van het 11de internationaal ECI jeugdtoernooi, 1984"]

1. b3 e5 2. e3 Nc6 3. Bb2 d5 4. Bb5 Bd6 5. f4 Qe7 6. Nf3 Bg4 7. fxe5 Bxf3
8. exd6 Qh4+ 9. g3 Qe4 10. Nc3 Qf5 11. Rf1 d4 12. Rxf3 Qh5 13. exd4 O-O-O
14. Bxc6 bxc6 15. dxc7 Rd7 16. Qe2 f6 17. O-O-O Nh6 18. Qa6+ Kxc7 19. Qxa7+ Kc8
20. Qa8+ Kc7 21. Qxh8 Qxf3 22. Qxh7 Nf5 23. Na4 g5 24. Qh3 Nxd4 25. Bxd4 Rxd4
26. Qf1 {Black lost on time.} 1-0

[Event "11th ECI tournament"]
[Site "Sas van Gent"]
[Date "1984.08.09"]
[Round "1"]
[White "Welvaert, Dirk"]
[Black "Pieniażęk, Artur"]
[Result "0-1"]
[ECO "B08"]
[Opening "Pirc: classical system (5.Be2)"]
[Source "M. Ploeger, ECI toernooiboek van het 11de internationaal ECI jeugdtoernooi, 1984"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Nf3 Bg7 5. Be2 O-O 6. O-O c6 7. a4 Qc7 8. Bg5
Bg4 9. Qd2 Nbd7 10. Rad1 Rfd8 11. h3 Bxf3 12. Bxf3 a6 13. Rfe1 b5 14. axb5 axb5
15. Ne2 Nb6 16. b3 e5 17. Ng3 c5 18. dxe5 dxe5 19. Qe3 Rd7 20. Be2 b4 21. Rxd7
Nfxd7 22. Rd1 Nf8 23. Qd3 Ne6 24. Be3 Rd8 25. Qb5 Rxd1+ 26. Bxd1 Bf8 27. Be2 Nd4
28. Bxd4 cxd4 29. Bc4 Nxc4 30. Qxc4 Qxc4 31. bxc4 d3 32. cxd3 b3 33. Nf1 Bb4 0-1

[Event "11th ECI tournament"]
[Site "Sas van Gent"]
[Date "1984.08.10"]
[Round "2"]
[White "Burgess, Mark"]
[Black "Van Wonterghem, Geert"]
[Result "1-0"]
[ECO "A46"]
[Opening "Queen's pawn: Yusupov-Rubinstein system"]
[Source "M. Ploeger, ECI toernooiboek van het 11de internationaal ECI jeugdtoernooi, 1984"]

1. d4 Nf6 2. Nf3 e6 3. e3 c5 4. Bd3 Nc6 5. c3 d5 6. Nbd2 c4 7. Bc2 Bd6 8. Qe2
O-O 9. e4 e5 10. dxe5 Nxe5 11. Nxe5 Bxe5 12. O-O Re8 13. f4 Bd6 14. e5 Ng4
15. Nf3 f6 16. h3 fxe5 17. hxg4 Bc5+ 18. Kh1 exf4 19. Qd1 g5 20. Nd4 Qf6 21. g3
Bxd4 22. cxd4 Qh6+ 23. Kg2 Qg7 24. Qf3 Qxd4 25. gxf4 gxf4 26. Bxf4 Be6 27. Rf2
Qg7 28. g5 Qd7 29. Rh1 Re7 30. Be5 d4 31. Qf6 Bh3+ 32. Rxh3 Qd5+ 33. Kg1 Qxe5
34. Bxh7+ 1-0

[Event "11th ECI tournament"]
[Site "Sas van Gent"]
[Date "1984.08.10"]
[Round "2"]
[White "Petri, Peter"]
[Black "Peterschofsky, Franz"]
[Result "1-0"]
[ECO "B06"]
[Opening "Robatsch defence: two knights variation"]
[Source "M. Ploeger, ECI toernooiboek van het 11de internationaal ECI jeugdtoernooi, 1984"]

1. e4 d6 2. d4 g6 3. Nc3 Bg7 4. Nf3 Nd7 5. Be2 c6 6. a4 Qc7 7. O-O Ngf6 8. h3
e5 9. Be3 O-O 10. d5 Ne8 11. Ne1 c5 12. Nb5 Qd8 13. c3 f5 14. f3 f4 15. Bf2 Ndf6
16. Nc2 Nh5 17. b4 cxb4 18. Nxb4 a6 19. Na3 Qg5 20. Kh2 Ng3 21. Rg1 Bf6 22. Qe1
Qh6 23. c4 Bh4 24. Nd3 Rb8 25. Rb1 Ng7 26. c5 dxc5 27. Nxc5 b6 28. Nd3 Rb7
29. Nc4 N7h5 30. Ncxe5 g5 31. Nc6 Nf6 32. Bd1 Re8 33. Nce5 Rg7 34. Ng4 Nxg4+
35. fxg4 Rxe4 36. Qc3 Bd7 37. Bf3 Ne2 38. Bxe2 Rxe2 39. Bxh4 Qxh4 40. Ne5 Re3
41. Qc7 Qg3+ 42. Kh1 Re7 43. Qd8+ Re8 44. Qxg5+ Kf8 45. Nxd7+ Kf7 46. Qf6+ Kg8
47. Qh6 Rc8 48. Rbc1 1-0

[Event "11th ECI tournament"]
[Site "Sas van Gent"]
[Date "1984.08.10"]
[Round "2"]
[White "Moen, Steinar"]
[Black "Welvaert, Dirk"]
[Result "0-1"]
[ECO "B12"]
[Opening "Caro-Kann: advance variation"]
[Source "M. Ploeger, ECI toernooiboek van het 11de internationaal ECI jeugdtoernooi, 1984"]

1. e4 c6 2. d4 d5 3. e5 Bf5 4. Nc3 e6 5. g4 Bg6 6. Nge2 c5 7. Be3 Nc6 8. dxc5
Nxe5 9. Nd4 Nc6 10. Bb5 Rc8 11. Qe2 Nf6 12. O-O-O Be7 13. Bf4 O-O 14. Nxc6 bxc6
15. Ba6 Bxc5 16. Bxc8 Qxc8 17. f3 Nd7 18. Na4 Be7 19. h4 h6 20. Rdg1 Qb7 21. a3
d4 22. Rd1 c5 23. h5 Bh7 24. Rhg1 Qc6 25. b3 c4 26. Qxc4 Bxa3+ 27. Kb1 Qb7
28. Ka2 Rc8 29. Qxd4 Bxc2 30. Rb1 Bxb1+ 31. Rxb1 Be7 32. Rc1 Rxc1 33. Bxc1 Bf6
34. Qd1 Qc7 35. f4 Nb6 36. Nxb6 Qxb6 37. Qd2 Qa6+ 38. Ba3 Be7 39. b4 Qc4+
40. Kb2 Bf6+ 41. Kb1 0-1

[Event "11th ECI tournament"]
[Site "Sas van Gent"]
[Date "1984.08.11"]
[Round "3"]
[White "Welvaert, Dirk"]
[Black "Van Wonterghem, Geert"]
[Result "1-0"]
[ECO "B23"]
[Opening "Sicilian: closed"]
[Source "M. Ploeger, ECI toernooiboek van het 11de internationaal ECI jeugdtoernooi, 1984"]

1. e4 c5 2. Nc3 e6 3. g3 b6 4. Bg2 Bb7 5. d3 f5 6. Nf3 fxe4 7. dxe4 Nf6 8. e5
Nd5 9. Nb5 d6 10. c4 Qd7 11. exd6 Bxd6 12. Nxd6+ Qxd6 13. cxd5 exd5 14. Qe2+ Kd7
15. Bf4 1-0

[Event "11th ECI tournament"]
[Site "Sas van Gent"]
[Date "1984.08.11"]
[Round "3"]
[White "Östergaard, Dan"]
[Black "Petri, Peter"]
[Result "1/2-1/2"]
[ECO "B78/22"]
[Opening "Sicilian: dragon, Yugoslav attack, Bc4 main line"]
[Source "M. Ploeger, ECI toernooiboek van het 11de internationaal ECI jeugdtoernooi, 1984"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 Nc6 8. Qd2
Bd7 9. Bc4 Rc8 10. Bb3 Ne5 11. O-O-O O-O 12. h4 h5 13. Bg5 Rc5 14. g4 Nc4
15. Qe2 Na5 16. gxh5 Nxh5 17. Nd5 Rxd5 18. Bxd5 Ng3 19. Qe3 Nxh1 20. Rxh1 Qb6
21. Nb3 Qxe3+ 22. Bxe3 Nc6 23. a3 a6 24. Bg5 1/2-1/2

[Event "11th ECI tournament"]
[Site "Sas van Gent"]
[Date "1984.08.12"]
[Round "4"]
[White "Kinsman, Andrew"]
[Black "Petri, Peter"]
[Result "1-0"]
[ECO "D90"]
[Opening "Gruenfeld: three knights variation"]
[Source "M. Ploeger, ECI toernooiboek van het 11de internationaal ECI jeugdtoernooi, 1984"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. cxd5 Nxd5 6. Bd2 O-O 7. Rc1 c6
8. Bg5 Re8 9. e4 Nxc3 10. bxc3 Bg4 11. Bc4 Qa5 12. h3 Bxf3 13. Qxf3 e6 14. e5
Nd7 15. h4 h6 16. Bd2 Kf8 17. Bd3 Ke7 18. c4 Qc7 19. h5 g5 20. c5 Rad8 21. Qg3
Rg8 22. Bh7 Rh8 23. Be4 Rdg8 24. O-O Rc8 25. f4 gxf4 26. Rxf4 Rcg8 27. Qh4+ Ke8
28. Rxf7 Kxf7 29. Bg6+ 1-0

[Event "11th ECI tournament"]
[Site "Sas van Gent"]
[Date "1984.08.12"]
[Round "4"]
[White "Welvaert, Dirk"]
[Black "Quist, Johan"]
[Result "0-1"]
[ECO "B51"]
[Opening "Sicilian: Canal-Sokolsky (Nimzovich-Rossolimo, Moscow) attack"]
[Source "M. Ploeger, ECI toernooiboek van het 11de internationaal ECI jeugdtoernooi, 1984"]

1. e4 c5 2. Nf3 d6 3. Bb5+ Nd7 4. a4 Nf6 5. Nc3 g6 6. d3 Bg7 7. O-O O-O 8. Bg5
a6 9. Bc4 Nb6 10. Bb3 Bg4 11. h3 Bxf3 12. Qxf3 Qc7 13. a5 Nbd7 14. Qe2 e6 15. f4
Rae8 16. g4 Kh8 17. Qd2 Nb8 18. Ne2 Nc6 19. f5 Nd4 20. Nxd4 cxd4 21. Bh4 exf5
22. gxf5 Re5 23. Bg3 Rc5 24. Qf4 Nh5 25. Qxd6 Nxg3 0-1

[Event "11th ECI tournament"]
[Site "Sas van Gent"]
[Date "1984.08.12"]
[Round "4"]
[White "Van Wonterghem, Geert"]
[Black "Martens, Martin"]
[Result "1-0"]
[ECO "A01"]
[Opening "Nimzovich-Larsen attack: modern variation"]
[Source "M. Ploeger, ECI toernooiboek van het 11de internationaal ECI jeugdtoernooi, 1984"]

1. b3 e5 2. e3 f5 3. Bb2 d6 4. c4 Nf6 5. Nc3 Be7 6. Nge2 O-O 7. Ng3 a5 8. Bd3
e4 9. Bc2 Na6 10. d3 exd3 11. Bxd3 g6 12. h4 Ng4 13. h5 Bf6 14. hxg6 hxg6
15. Qd2 Be6 16. f3 Ne5 17. Kf2 Nb4 18. Bb1 Bg5 19. Nce2 Bf6 20. Nf4 Bf7 21. a3
Nbc6 22. e4 Bh4 23. exf5 Qg5 24. Rh3 gxf5 25. Bxf5 Ne7 26. Rxh4 Qxh4 27. Rh1
Qxh1 28. Nxh1 Nxf5 29. Nh3 Be6 30. Qg5+ Kf7 31. Nf4 Rg8 32. Qh5+ Ke7 33. g4 Ng7
34. Qg5+ Kd7 35. Bxe5 dxe5 36. Qxe5 Rae8 37. Nxe6 Nxe6 38. Qxa5 c6 39. Qd2+ Kc7
40. Ng3 Rd8 41. Qa5+ Kb8 42. Qe5+ Nc7 43. Nf5 Rd2+ 44. Kg3 Rd3 45. Qb2 Rgd8
46. b4 Rd2 47. Qe5 R2d3 48. a4 Ra3 49. b5 1-0

[Event "11th ECI tournament"]
[Site "Sas van Gent"]
[Date "1984.08.13"]
[Round "5"]
[White "de Waal, Mark"]
[Black "Van Wonterghem, Geert"]
[Result "1/2-1/2"]
[ECO "A61"]
[Opening "Benoni defence"]
[Source "M. Ploeger, ECI toernooiboek van het 11de internationaal ECI jeugdtoernooi, 1984"]

1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. Nf3 g6 7. Bf4 a6 8. a4
Nh5 9. Bg5 Qc7 10. e4 Bg7 11. Be2 O-O 12. Nd2 Nf6 13. O-O Re8 14. f4 Nbd7
15. Kh1 Rb8 16. Qe1 b6 17. Qh4 Bb7 18. Rae1 Bh8 19. Bf3 Ba8 20. e5 dxe5 21. fxe5
Rxe5 22. Bf4 Rbe8 23. Bxe5 Rxe5 24. Nc4 Rf5 25. d6 Qb8 26. Bxa8 Rxf1+ 27. Rxf1
Qxa8 28. Qe1 Qc6 29. Qe7 h5 30. Ne5 Nxe5 31. Qxe5 Ne8 32. Qe2 Nxd6 33. Qxa6 c4
34. Qa7 1/2-1/2

[Event "11th ECI tournament"]
[Site "Sas van Gent"]
[Date "1984.08.13"]
[Round "5"]
[White "Petri, Peter"]
[Black "Moen, Steinar"]
[Result "0-1"]
[ECO "C89"]
[Opening "Ruy Lopez: Marshall, main line"]
[Source "M. Ploeger, ECI toernooiboek van het 11de internationaal ECI jeugdtoernooi, 1984"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3
d5 9. exd5 Nxd5 10. Nxe5 Nxe5 11. Rxe5 c6 12. d4 Bd6 13. Re1 Qh4 14. g3 Qh3
15. Be3 Bg4 16. Qd3 Rae8 17. Nd2 f5 18. Qf1 Qh5 19. f4 Kh8 20. Bxd5 cxd5 21. a4
bxa4 22. Rxa4 g5 23. Raa1 Re6 24. Rxa6 gxf4 25. Bxf4 Rxe1 26. Qxe1 Bxf4 27. gxf4
Be2 28. Rh6 Rg8+ 29. Kf2 Qxh6 30. Qxe2 Qxh2+ 31. Ke1 Qxf4 32. Kd1 Qd6 33. Nf3
Qf6 34. Ne5 h6 35. Qh5 Kh7 36. Qf3 Qe6 37. Qd3 Rg5 38. Qe3 Rg2 39. b4 Qa6
40. Nd3 f4 41. Qh3 0-1

[Event "11th ECI tournament"]
[Site "Sas van Gent"]
[Date "1984.08.13"]
[Round "5"]
[White "de Wolf, Johan"]
[Black "Welvaert, Dirk"]
[Result "1-0"]
[ECO "A52"]
[Opening "Budapest: Alekhine, Abonyi variation"]
[Source "M. Ploeger, ECI toernooiboek van het 11de internationaal ECI jeugdtoernooi, 1984"]

1. d4 Nf6 2. c4 e5 3. dxe5 Ng4 4. e4 Nxe5 5. f4 Nec6 6. Be3 Be7 7. Nc3 d6
8. Nf3 Nd7 9. Bd3 Bf6 10. Qd2 Nb6 11. Nd5 Bg4 12. Nxf6+ Qxf6 13. O-O h6 14. Rae1
O-O 15. b3 Qe7 16. Nd4 f6 17. Qf2 Bd7 18. Qg3 Kh8 19. e5 Be8 20. Nf5 Qf7
21. exd6 Qg6 22. dxc7 Qxg3 23. Nxg3 Rc8 24. Bc5 Rg8 25. Bf5 Bd7 26. Bxb6 Bxf5
27. Nxf5 axb6 28. Ne7 Nxe7 29. Rxe7 Kh7 30. Rd1 Kg6 31. Kf2 1-0

[Event "11th ECI tournament"]
[Site "Sas van Gent"]
[Date "1984.08.14"]
[Round "6"]
[White "Petri, Peter"]
[Black "Dubbeldam, Nick"]
[Result "0-1"]
[ECO "B29"]
[Opening "Sicilian: Nimzovich-Rubinstein (plus Scheveningen)"]
[Source "M. Ploeger, ECI toernooiboek van het 11de internationaal ECI jeugdtoernooi, 1984"]

1. e4 c5 2. Nf3 Nf6 3. Nc3 d5 4. Bb5+ Bd7 5. Bxd7+ Qxd7 6. exd5 Nxd5 7. Ne4 e5
8. O-O Nc6 9. Re1 O-O-O 10. d3 f5 11. Nc3 Nxc3 12. bxc3 e4 13. Ng5 h6 14. Qh5 g6
15. Qh4 Be7 16. dxe4 hxg5 0-1

[Event "11th ECI tournament"]
[Site "Sas van Gent"]
[Date "1984.08.14"]
[Round "6"]
[White "Dâmaso Pereira de Almeida, Rui Miguel"]
[Black "Welvaert, Dirk"]
[Result "1/2-1/2"]
[ECO "A57"]
[Opening "Benko gambit (Volga gambit)"]
[Source "M. Ploeger, ECI toernooiboek van het 11de internationaal ECI jeugdtoernooi, 1984"]

1. d4 Nf6 2. c4 c5 3. d5 b5 4. a4 bxc4 5. Nc3 d6 6. e4 g6 7. Be2 Bg7 8. Nf3 Na6
9. Nd2 Nb4 10. Nxc4 O-O 11. O-O Ba6 12. Bg5 Nd7 13. f4 h6 14. Bh4 Nb6 15. Ne3
Qc7 16. a5 Bd4 17. Bf2 Nd7 18. Bxa6 Nxa6 19. Nb5 1/2-1/2

[Event "11th ECI tournament"]
[Site "Sas van Gent"]
[Date "1984.08.14"]
[Round "6"]
[White "Vianin, Pascal"]
[Black "Van Wonterghem, Geert"]
[Result "0-1"]
[ECO "A65"]
[Opening "Benoni: 6.e4"]
[Source "M. Ploeger, ECI toernooiboek van het 11de internationaal ECI jeugdtoernooi, 1984"]

1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 a6 7. a4 g6 8. Nf3 Bg7
9. Bf4 O-O 10. Bd3 Bg4 11. h3 Bxf3 12. Qxf3 Re8 13. O-O Qc7 14. Rac1 Nbd7
15. Qd1 Rab8 16. Re1 Ne5 17. b3 Nfd7 18. Bg3 Nxd3 19. Qxd3 Ne5 20. Qf1 Qb6
21. Bxe5 Bxe5 22. Qc4 Qa5 23. Qd3 b5 24. axb5 axb5 25. Ne2 Qb4 26. f4 Bg7
27. Ng3 Ra8 28. f5 Ra3 29. fxg6 fxg6 30. Qf3 Rxb3 31. Qg4 Qd4+ 32. Kh1 Qe5
33. Nf1 Rd3 34. Ra1 Qe7 35. Ra6 Rxd5 36. Rb1 Qxe4 37. Qd7 Rf8 38. Ra7 Qe5
39. Ne3 Rd3 40. Ng4 Qc3 41. Nh6+ Kh8 42. Nf7+ Rxf7 43. Qxf7 Rxh3+ 44. gxh3 Qxh3+
45. Kg1 Bd4+ 46. Qf2 Bxf2+ 47. Kxf2 Qf5+ 0-1

[Event "11th ECI tournament"]
[Site "Sas van Gent"]
[Date "1984.08.15"]
[Round "7"]
[White "Bella, Brian"]
[Black "Petri, Peter"]
[Result "1-0"]
[ECO "B22"]
[Opening "Sicilian-Alekhine-Alapin"]
[Source "M. Ploeger, ECI toernooiboek van het 11de internationaal ECI jeugdtoernooi, 1984"]

1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. d4 cxd4 5. Nf3 e6 6. cxd4 Nc6 7. a3 d6 8. Bd3
Bd7 9. O-O Be7 10. Qe2 O-O 11. Qe4 f5 12. exf6 Nxf6 13. Qh4 e5 14. Re1 exd4
15. Bg5 h6 16. Bxf6 Rxf6 17. Qe4 Bf5 18. Qd5+ 1-0

[Event "11th ECI tournament"]
[Site "Sas van Gent"]
[Date "1984.08.15"]
[Round "7"]
[White "Welvaert, Dirk"]
[Black "Dubbeldam, Nick"]
[Result "0-1"]
[ECO "A03/05"]
[Opening "Bird's opening: 2.e3"]
[Source "M. Ploeger, ECI toernooiboek van het 11de internationaal ECI jeugdtoernooi, 1984"]

1. f4 d5 2. Nf3 c5 3. e3 Nf6 4. b3 e6 5. Bb2 Be7 6. Be2 O-O 7. O-O Nc6 8. h3 d4
9. Qe1 Nb4 10. Bd1 dxe3 11. dxe3 b6 12. a3 Nc6 13. Nbd2 Qc7 14. c4 Nd7 15. e4 e5
16. Qg3 Bf6 17. f5 Bb7 18. Nb1 Rac8 19. Nc3 Nd4 20. Bc1 Qd8 21. Ra2 Qe7 22. Qe1
Nb8 23. g4 a6 24. Rg2 g5 25. h4 h6 26. hxg5 hxg5 27. Qe3 Nxf3+ 28. Rxf3 Kg7
29. Rh3 Rh8 30. Rgh2 Rcg8 31. Rh5 Qd8 32. Nd5 Bxd5 33. cxd5 Rxh5 34. gxh5 Be7
35. h6+ Kh7 36. Bh5 Qe8 37. Qc3 Nd7 38. Qd3 b5 39. d6 Bf6 40. Qd5 Rf8 41. Be3
Bd8 42. Bxc5 g4 43. Rg2 Bg5 44. Bxg4 Qa8 45. Qxa8 Rxa8 46. Bf2 Kxh6 47. Kh2 f6
48. b4 Rc8 49. Bc5 Kg7 50. Rc2 Be3 51. Rc3 Bxc5 52. bxc5 Rxc5 53. Rxc5 Nxc5
54. Bd1 Kf8 55. Kg3 Nxe4+ 56. Kg4 0-1

[Event "11th ECI tournament"]
[Site "Sas van Gent"]
[Date "1984.08.15"]
[Round "7"]
[White "Van Wonterghem, Geert"]
[Black "Zakić, Srđan"]
[Result "0-1"]
[ECO "A01"]
[Opening "Nimzovich-Larsen attack: modern variation"]
[Source "M. Ploeger, ECI toernooiboek van het 11de internationaal ECI jeugdtoernooi, 1984"]

1. b3 e5 2. e3 Nf6 3. Bb2 d6 4. c4 g6 5. Nc3 Bg7 6. Nge2 O-O 7. Ng3 h5 8. h4 c6
9. d4 Qe7 10. d5 c5 11. Nce4 Nh7 12. Qc2 f5 13. Nc3 Bf6 14. O-O-O Bxh4 15. Rh3
Bf6 16. Be2 h4 17. Nf1 g5 18. Nd2 g4 19. Rh2 Na6 20. g3 h3 21. f3 Bg5 22. fxg4
fxg4 23. Qg6+ Qg7 24. Qxg7+ Kxg7 25. Nb5 Bd7 26. Nxd6 Bxe3 27. Bxe5+ Kh6 28. Kb2
Ng5 29. N6e4 Bf5 30. Nf6 Kg6 31. Nxg4 Bxd2 32. Rxd2 Rfe8 33. Bf4 Rxe2 34. Rdxe2
Bxg4 35. Re7 Nf3 36. Rh1 Nb4 37. Re3 Rh8 38. a3 Na6 39. Re7 Nb8 40. Rxb7 Nd7
41. Rxa7 h2 42. Kc3 Re8 43. Ra6+ Nf6 44. b4 cxb4+ 45. axb4 Re1 46. Rxh2 Nxh2
47. Ra2 Nf3 48. b5 Rb1 49. Rb2 Ne4+ 50. Kc2 Re1 51. b6 Nc5 52. b7 Re2+ 53. Kb1
Rxb2+ 54. Kxb2 Nxb7 55. Kc3 Bd7 56. Kb4 Ne1 57. Bb8 Kf5 58. g4+ Ke4 59. g5 Nd3+
60. Kc3 Bf5 61. Ba7 Nd8 62. Bd4 Nf7 63. Bf6 Bg6 64. Be7 Nfe5 65. Bf6 Nd7 66. Be7
Ke3 67. Bd8 N3c5 68. Be7 Ne4+ 69. Kb4 Kd4 70. Kb5 Ne5 71. d6 Be8+ 72. Kb6 Kxc4
73. Kc7 Nc5 74. Kd8 Bg6 75. Bf6 Ned7 76. Ke7 Kd5 77. Bb2 Kc6 78. Bc1 Ne4 79. Bf4
Ndc5 80. Bh2 Bf5 81. Bf4 Nb7 82. g6 Bxg6 83. d7 Nec5 84. Bd6 Nxd7 85. Ba3 Nbc5
86. Bb2 Kd5 87. Ba3 Ne5 88. Kf6 Ne4+ 89. Ke7 Nc6+ 90. Kf8 Ke6 91. Kg7 Kf5
92. Bb2 Ng5 93. Ba3 Ne6+ 94. Kg8 Ncd8 95. Bb2 Nf7 96. Bc1 Kf6 97. Bb2+ Ke7
98. Ba3+ Ke8 99. Bc1 Nfg5 100. Ba3 Ne4 101. Bb2 Nf2 102. Bc1 Ng4 103. Bb2 Nh6+
104. Kh8 Kf7 105. Bc1 Ng4 106. Bb2 Bf5 107. Ba3 Nf6 108. Bd6 Kg6 109. Be7 Ng5
110. Bxf6 Kxf6 111. Kg8 Nf7 112. Kf8 Bh7 113. Ke8 Ne5 114. Kd8 Ke6 115. Kc7 Nd7
116. Kc6 Bd3 0-1

[Event "11th ECI tournament"]
[Site "Sas van Gent"]
[Date "1984.08.16"]
[Round "8"]
[White "Castets, Philippe"]
[Black "Welvaert, Dirk"]
[Result "1/2-1/2"]
[ECO "E62"]
[Opening "King's Indian: fianchetto variation"]
[Source "M. Ploeger, ECI toernooiboek van het 11de internationaal ECI jeugdtoernooi, 1984"]

1. d4 Nf6 2. Nf3 d6 3. c4 g6 4. Nc3 Bg7 5. g3 Nbd7 6. Bg2 c5 7. d5 O-O 8. O-O
a6 9. a4 b6 10. e4 Ra7 11. h3 Ne8 12. Be3 e5 13. dxe6 fxe6 14. h4 Ndf6 15. e5
Ng4 16. Bf4 Raf7 17. Ng5 Rxf4 18. gxf4 Rxf4 19. Bh3 Nxe5 20. Bxe6+ Bxe6 21. Nxe6
Qxh4 22. Nxf4 Qxf4 23. Qd5+ Kh8 24. Ne2 Qg4+ 25. Ng3 Nf3+ 26. Kg2 Nh4+ 27. Kh2
Nf3+ 28. Kg2 Nh4+ 1/2-1/2

[Event "11th ECI tournament"]
[Site "Sas van Gent"]
[Date "1984.08.16"]
[Round "8"]
[White "Petri, Peter"]
[Black "Martens, Martin"]
[Result "1/2-1/2"]
[ECO "B80"]
[Opening "Sicilian: Scheveningen variation"]
[Source "M. Ploeger, ECI toernooiboek van het 11de internationaal ECI jeugdtoernooi, 1984"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bg5 Be7 7. Qd2 a6 {My
source gives again d6. Either black's 5th move or this one was probably b6.}
8. a4 b6 9. Be2 Bb7 10. Bf3 Qc7 11. O-O Nbd7 12. Rfe1 O-O 13. Bd1 Ne5 14. Qe2
Nc4 15. Bc1 Rac8 16. b3 Ne5 17. Bb2 Ng6 18. Qe3 d5 19. exd5 Nxd5 20. Nxd5 Bxd5
21. c4 Bb7 22. Bc2 Bf6 23. Bxg6 hxg6 24. Rab1 Rcd8 25. Nf3 Bxb2 26. Rxb2 Bxf3
27. Qxf3 Rd4 28. g3 Rfd8 29. Rbb1 Rd3 30. Re3 Rxe3 31. Qxe3 Qd6 32. Rb2 Qd4
33. Qxd4 Rxd4 34. Kf1 Kf8 35. Ke2 Ke7 36. Ke3 Rd1 37. Rd2 Rxd2 38. Kxd2 Kd6
39. b4 g5 40. Ke3 e5 41. Ke4 g6 42. g4 Ke6 43. h3 f5+ 44. Kd3 Kd6 1/2-1/2

[Event "11th ECI tournament"]
[Site "Sas van Gent"]
[Date "1984.08.16"]
[Round "8"]
[White "Van Wonterghem, Geert"]
[Black "de Wolf, Johan"]
[Result "1/2-1/2"]
[ECO "A01"]
[Opening "Nimzovich-Larsen attack: classical variation"]
[Source "M. Ploeger, ECI toernooiboek van het 11de internationaal ECI jeugdtoernooi, 1984"]

1. b3 d5 2. e3 Nf6 3. Bb2 g6 4. Nf3 Bg7 5. c4 c6 6. Nc3 O-O 7. d4 Nbd7 8. Bd3
Qa5 9. O-O dxc4 10. bxc4 e5 11. h3 Re8 12. Qc2 exd4 13. exd4 Nf8 14. Rfe1 Bd7
15. a4 Rad8 16. Ne4 Nxe4 17. Bxe4 Be6 18. Red1 Qb4 19. Bd3 Qa5 20. Bc3 Qc7
21. Rab1 Bc8 22. Qb2 Ne6 23. Bf1 Nf4 24. Re1 Rxe1 25. Rxe1 Bf5 26. Qd2 h5
27. Ne5 Bh6 28. Qd1 f6 29. Nd3 Kf7 30. Nxf4 Bxf4 31. Qf3 Bg5 32. Bb4 Re8
33. Rxe8 Kxe8 34. d5 c5 35. Bc3 Kf7 36. a5 Bf4 37. g4 hxg4 38. hxg4 Bc8 39. Bd3
b6 40. axb6 axb6 41. Qe4 Bh2+ 42. Kg2 f5 43. gxf5 Bxf5 44. Qf3 1/2-1/2

[Event "11th ECI tournament"]
[Site "Sas van Gent"]
[Date "1984.08.17"]
[Round "9"]
[White "Moen, Steinar"]
[Black "Van Wonterghem, Geert"]
[Result "1-0"]
[ECO "B40"]
[Opening "Sicilian: Pin, Koch variation"]
[Source "M. Ploeger, ECI toernooiboek van het 11de internationaal ECI jeugdtoernooi, 1984"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Bb4 6. e5 Nd5 7. Bd2 Qc7
8. Nxd5 Qxe5+ 9. Ne3 Bxd2+ 10. Qxd2 Nc6 11. c3 f5 12. Be2 O-O 13. O-O Rf6
14. Nc4 Qb8 15. Nxc6 bxc6 16. Qd6 Kf7 17. Rfd1 Ke8 18. Rd2 Qxd6 19. Nxd6+ 1-0

[Event "11th ECI tournament"]
[Site "Sas van Gent"]
[Date "1984.08.17"]
[Round "9"]
[White "Petri, Peter"]
[Black "Pétursson, Pálmi Ragnar"]
[Result "1/2-1/2"]
[ECO "B32"]
[Opening "Sicilian: Labourdonnais-Loewenthal variation"]
[Source "M. Ploeger, ECI toernooiboek van het 11de internationaal ECI jeugdtoernooi, 1984"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e5 5. Nb5 a6 6. Nd6+ Bxd6 7. Qxd6 Qf6
8. Qxf6 Nxf6 9. Nc3 d5 10. exd5 Nb4 11. Bd3 Nxd3+ 12. cxd3 Bf5 13. Ke2 h6
14. Re1 O-O-O 15. Be3 Nxd5 16. Nxd5 Rxd5 17. Rac1+ Kb8 18. Red1 Rhd8 19. Rc3 b5
20. b4 Kb7 21. a3 g5 22. Bc5 Bg6 1/2-1/2

[Event "11th ECI tournament"]
[Site "Sas van Gent"]
[Date "1984.08.17"]
[Round "9"]
[White "Welvaert, Dirk"]
[Black "Östergaard, Dan"]
[Result "0-1"]
[ECO "B07"]
[Opening "Pirc-Robatsch"]
[Source "M. Ploeger, ECI toernooiboek van het 11de internationaal ECI jeugdtoernooi, 1984"]

1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. c3 Nf6 5. Bd3 c6 6. O-O O-O 7. a4 b6 8. Re1 Qc7
9. Na3 e5 10. Bg5 Nbd7 11. Qd2 Bb7 12. Rad1 a6 13. Bh6 Rad8 14. Bxg7 Kxg7
15. Nh4 h6 16. Nc2 Rh8 17. f4 c5 18. fxe5 dxe5 19. d5 c4 20. Bf1 b5 21. Re3 Nc5
22. Qe1 Nxa4 23. Qg3 Kh7 24. Kh1 Rhe8 25. Rd2 Nc5 26. Rde2 Rd6 27. Qh3 Bc8
28. Qg3 Nh5 29. Qe1 Nd3 30. Qb1 f5 31. Nb4 Nxb4 32. cxb4 f4 33. Ra3 Qe7 34. Nf3
g5 35. Ng1 g4 36. Rc2 Qh4 37. Qd1 Ng3+ 38. Rxg3 fxg3 39. h3 gxh3 40. Nxh3 Bxh3
0-1

[Event "11th ECI tournament, Girls' group"]
[Site "Sas van Gent"]
[Date "1984.08.11"]
[Round "3"]
[White "Vandevoort, Chantal"]
[Black "Petek, Radmila"]
[Result "1-0"]
[ECO "C11"]
[Opening "French: Burn variation"]
[Source "M. Ploeger, ECI toernooiboek van het 11de internationaal ECI jeugdtoernooi, 1984"]

1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 dxe4 5. Nxe4 Be7 6. Nxf6+ gxf6 7. Bf4 Bd7
8. Qg4 f5 9. Qh5 Bf6 10. Nf3 h6 11. Bc4 Bc6 12. O-O-O Bxf3 13. gxf3 c6 14. Bxe6
1-0

[Event "11th ECI tournament, Open"]
[Site "Sas van Gent"]
[Date "1984.08.11"]
[Round "1"]
[White "Libeert, J."]
[Black "Van Herck, Marcel"]
[Result "0-1"]
[ECO "D07"]
[PlyCount "84"]
[EventDate "1984.08.11"]
[Source "Marcel Van Herck"]

1. d4 d5 2. c4 Nc6 3. Bf4 Nf6 4. Nc3 dxc4 5. e3 Nd5 6. Bg3 Na5 7. Bxc4 Nxc4 8.
Qa4+ c6 9. Qxc4 Be6 10. Qd3 Nb4 11. Qe2 Qa5 12. a3 b5 13. Qd1 Nd5 14. Nge2 Nxc3
15. Nxc3 Bc4 16. b4 Qb6 17. Qc2 a5 18. Na4 bxa4 19. Qxc4 axb4 20. axb4 Qb5 21.
Qxb5 cxb5 22. Ke2 e6 23. Kd3 Be7 24. Bc7 Kd7 25. Ba5 Rhc8 26. Rhc1 Rxc1 27.
Rxc1 Rc8 28. Rxc8 Kxc8 29. e4 f5 30. f3 fxe4+ 31. fxe4 Kd7 32. Kc3 Kc6 33. h3
Bf6 34. g3 h5 35. g4 hxg4 36. hxg4 g6 37. Kd3 a3 38. Kc3 Bxd4+ 39. Kb3 Kd6 40.
Kxa3 Ke5 41. Bd8 Kxe4 42. Kb3 Kd3 0-1

[Event "11th ECI tournament, Open"]
[Site "Sas van Gent"]
[Date "1984.08.12"]
[Round "2"]
[White "Van Herck, Marcel"]
[Black "van der Zalm, Marnix"]
[Result "1/2-1/2"]
[ECO "E22"]
[PlyCount "58"]
[EventDate "1984.08.11"]
[Source "Marcel Van Herck"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qb3 Bxc3+ 5. Qxc3 b6 6. Bg5 h6 7. Bh4 Bb7 8.
f3 d5 9. cxd5 exd5 10. Bg3 c6 11. Qa3 c5 12. dxc5 O-O 13. e3 Nbd7 14. Bd6 Re8
15. Bb5 bxc5 16. Bxc5 Nxc5 17. Bxe8 Qb6 18. b4 Ne6 19. Ba4 d4 20. Ne2 d3 21.
Qxd3 Qxb4+ 22. Kf2 Qxa4 23. Rhb1 Ba6 24. Qb3 Qh4+ 25. Ng3 Nc5 26. Qa3 Nd3+ 27.
Kg1 Qg5 28. f4 Qc5 29. Qxc5 Nxc5 1/2-1/2

[Event "11th ECI tournament, Open"]
[Site "Sas van Gent"]
[Date "1984.08.13"]
[Round "3"]
[White "Holmes, Donald"]
[Black "Van Herck, Marcel"]
[Result "1/2-1/2"]
[ECO "C70"]
[PlyCount "44"]
[EventDate "1984.08.11"]
[Source "Marcel Van Herck"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 f5 5. d4 exd4 6. Nxd4 Nxd4 7. Qxd4 c5 8.
Qe5+ Qe7 9. Qxe7+ Bxe7 10. c4 fxe4 11. Nc3 Nf6 12. O-O b6 13. Re1 Bb7 14. Bc2
O-O 15. Nxe4 Bxe4 16. Bxe4 Nxe4 17. Rxe4 Bf6 18. Rb1 Rae8 19. Rxe8 Rxe8 20. Be3
Re4 21. b3 Bd4 22. Rd1 Bxe3 1/2-1/2

[Event "11th ECI tournament, Open"]
[Site "Sas van Gent"]
[Date "1984.08.14"]
[Round "4"]
[White "Dubbeldam, M."]
[Black "Van Herck, Marcel"]
[Result "0-1"]
[ECO "A26"]
[PlyCount "98"]
[EventDate "1984.08.11"]
[Source "Marcel Van Herck"]

1. c4 Nc6 2. Nf3 e5 3. Nc3 g6 4. g3 d6 5. Bg2 Bg7 6. O-O Be6 7. d3 Qd7 8. Rb1
Bh3 9. b4 Bxg2 10. Kxg2 f5 11. b5 Nd8 12. Nd5 c6 13. bxc6 bxc6 14. Nb4 Ne6 15.
Na6 Ne7 16. Rb4 c5 17. Rb5 Qc6 18. Qa4 O-O 19. Ra5 Qxa4 20. Rxa4 Rac8 21. Bg5
Bf6 22. Bxf6 Rxf6 23. Rb1 Nc6 24. Ra3 Rf7 25. Rab3 Ncd8 26. Ne1 Rc6 27. Nb8
Rcc7 28. Nc2 Rb7 29. Rxb7 Rxb7 30. Rxb7 Nxb7 31. Nc6 a6 32. Ne7+ Kf7 33. Nd5
Nd4 34. Nxd4 cxd4 35. h4 Nc5 36. Kf3 a5 37. Nb6 Ke6 38. Nd5 h6 39. Nb6 g5 40.
hxg5 hxg5 41. Nd5 e4+ 42. dxe4 Nxe4 43. Nb6 Nc3 44. a3 g4+ 45. Kg2 Nxe2 46. Nd5
Nc3 47. Nf4+ Ke5 48. Kf1 Nb1 49. a4 Nd2+ 0-1

[Event "11th ECI tournament, Open"]
[Site "Sas van Gent"]
[Date "1984.08.15"]
[Round "5"]
[White "Van Herck, Marcel"]
[Black "Duchene, René"]
[Result "1/2-1/2"]
[ECO "C15"]
[PlyCount "104"]
[EventDate "1984.08.11"]
[Source "Marcel Van Herck"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. Nge2 dxe4 5. a3 Bxc3+ 6. Nxc3 Nc6 7. Bb5 Nge7
8. Bg5 f6 9. Be3 O-O 10. Nxe4 f5 11. d5 Qxd5 12. Qxd5 exd5 13. Ng5 a6 14. Bxc6
Nxc6 15. Bf4 Nd4 16. Kd2 h6 17. Nf3 Ne6 18. Be5 c5 19. b4 Re8 20. Rhe1 Bd7 21.
Bd6 b6 22. Re5 g6 23. bxc5 bxc5 24. c4 dxc4 25. Bxc5 c3+ 26. Kxc3 Rec8 27. Kc4
Bb5+ 28. Kb4 Nf4 29. Ne1 Rab8 30. Ka5 Bc4 31. Bd6 Rb2 32. Rc1 Rxf2 33. Rc5
Rxc5+ 34. Bxc5 Re2 35. Rxc4 Nxg2 36. Nxg2 Rxg2 37. Rh4 Kg7 38. Bd4+ Kh7 39. Be5
g5 40. Rb4 f4 41. Rb2 Rxb2 42. Bxb2 h5 43. Kxa6 h4 44. a4 g4 45. a5 f3 46. Bd4
g3 47. hxg3 hxg3 48. Bg1 f2 49. Bxf2 gxf2 50. Kb7 f1=Q 51. a6 Qg2+ 52. Kb8 Qb2+
1/2-1/2

[Event "11th ECI tournament, Open"]
[Site "Sas van Gent"]
[Date "1984.08.16"]
[Round "6"]
[White "de Ridder, Henk"]
[Black "Van Herck, Marcel"]
[Result "0-1"]
[ECO "A53"]
[PlyCount "99"]
[EventDate "1984.08.11"]
[Source "Marcel Van Herck"]

1. e4 c6 2. c4 e5 3. Nf3 d6 4. d4 Nd7 5. d5 Ngf6 6. Nc3 Be7 7. Bd3 O-O 8. O-O
cxd5 9. cxd5 Ne8 10. Be3 g6 11. Qc2 a6 12. b4 Ng7 13. Bh6 Nf6 14. b5 Ng4 15.
Bd2 f5 16. h3 Nf6 17. Qb3 Kh8 18. bxa6 bxa6 19. Rfb1 fxe4 20. Nxe4 Bf5 21. Nxf6
Bxf6 22. Bxf5 gxf5 23. Bc3 Qc7 24. Rc1 Qf7 25. Rab1 Nh5 26. Bd2 Rg8 27. Rc6 e4
28. Ne1 Be5 29. Bc3 Qf6 30. Bxe5 Qxe5 31. Qb2 Qxb2 32. Rxb2 Rab8 33. Rxb8 Rxb8
34. Nc2 Rb1+ 35. Kh2 Rf1 36. Nd4 Rxf2 37. Kg1 e3 38. Ne6 Kg8 39. Rxd6 Rd2 40.
Rd8+ Kf7 41. Ng5+ Ke7 42. Rh8 Rd1+ 43. Kh2 Nf6 44. Ra8 e2 45. Nf3 Rf1 46. Rxa6
Ne4 47. Re6+ Kd8 48. Ne5 e1=Q 49. Nc6+ Kc7 50. Re7+ 0-1

[Event "11th ECI tournament, Open"]
[Site "Sas van Gent"]
[Date "1984.08.17"]
[Round "7"]
[White "Van Herck, Marcel"]
[Black "Michiels, Dirk"]
[Result "1/2-1/2"]
[ECO "E18"]
[BlackElo "2205"]
[PlyCount "78"]
[EventDate "1984.08.11"]
[Source "Marcel Van Herck"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Nc3 Ne4 8. Nxe4
Bxe4 9. Nh4 Bxg2 10. Nxg2 d5 11. Qa4 c5 12. Rd1 dxc4 13. Be3 Qd7 14. Qxc4 Rd8
15. Qc2 Na6 16. dxc5 Qc6 17. Rac1 Bxc5 18. Bxc5 Qxc5 19. Qa4 Rxd1+ 20. Qxd1 Qe7
21. a3 Rd8 22. Qc2 Qc5 23. Ne3 Rc8 24. b4 Qxc2 25. Rxc2 Rxc2 26. Nxc2 e5 27.
Kg2 f6 28. Kf3 Kf7 29. Ke4 Ke6 30. f4 Nc7 31. f5+ Kd6 32. Ne3 Kc6 33. a4 Ne8
34. g4 a5 35. bxa5 Nd6+ 36. Kd3 bxa5 37. Nc4 Nb7 38. Kc3 Kd5 39. Nb6+ Kc6
1/2-1/2