[Event "WchT U26 01 fin-B"]
[Site "Mexico City"]
[Date "1978.08.31"]
[Round "5"]
[White "Watgen, Mark"]
[Black "Borge, Sergio"]
[Result "0-1"]
[ECO "B52"]
[PlyCount "49"]
[EventDate "1978.08.26"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "MEX"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]
[WhiteTeam "Luxembourg"]
[BlackTeam "Nicaragua"]
[WhiteTeamCountry "LUX"]
[BlackTeamCountry "NCA"]

1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Nxd7 5. 0-0 Ngf6 6. Qe2 e5 7. c3 Be7 8. d4 0-0 9. Rd1 Qc7 10. Na3 a6 11. Bg5 b5 12. Nh4 Nd5 13. Qg4 Bxg5 14. Qxg5 h6 15. Qg3 Nf4 16. Rd2 Nf6 17. Nf5 Ng6 18. f3 Rfd8 19. Rad1 exd4 20. cxd4 c4 21. Rc2 Qd7 22. d5 Qc7 23. b4 Qb6+ 24. Qf2 Qxf2+ 25. Kxf2 0-1

[Event "WchT U26 01 prel-2"]
[Site "Mexico City"]
[Date "1978.08.24"]
[Round "3"]
[White "Watgen, Mark"]
[Black "Ricarte, Juan"]
[Result "0-1"]
[ECO "C01"]
[PlyCount "56"]
[EventDate "1978.08.21"]
[EventType "team-tourn"]
[EventRounds "3"]
[EventCountry "MEX"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]
[WhiteTeam "Luxembourg"]
[BlackTeam "Ecuador"]
[WhiteTeamCountry "LUX"]
[BlackTeamCountry "ECU"]

1. e4 e6 2. d4 d5 3. exd5 exd5 4. Nc3 Bb4 5. Bd2 Nf6 6. Nf3 0-0 7. Be2 Re8 8. 0-0 Bg4 9. h3 Bh5 10. a3 Ba5 11. Re1 c6 12. Ne5 Bxe2 13. Rxe2 Bxc3 14. bxc3 Ne4 15. Re1 f6 16. Ng4 Nd7 17. a4 Nb6 18. Rb1 Qd7 19. f3 Nxd2 20. Qxd2 Nxa4 21. Rb4 b5 22. Rb3 Rxe1+ 23. Qxe1 Re8 24. Qg3 Qe7 25. Kh2 Kh8 26. h4 a5 27. Kh3 Qe6 28. Qc7 h5 0-1

[Event "ECI op U20 2nd"]
[Site "Eeklo"]
[Date "1975.08.09"]
[Round "9"]
[White "Giacomazzi, Dominique"]
[Black "Watgen, Mark"]
[Result "1-0"]
[ECO "D56"]
[PlyCount "73"]
[EventDate "1975.08.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BEL"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. Nf3 Nc6 6. e3 0-0 7. a3 h6 8. Bh4 Re8 9. Rc1 a6 10. Bxf6 Bxf6 11. cxd5 exd5 12. Be2 Be6 13. 0-0 Ne7 14. Na4 b6 15. Qc2 Ra7 16. Bd3 a5 17. h3 Qd7 18. Nc3 c6 19. Ne2 Rc7 20. b4 axb4 21. axb4 Bf5 22. Nf4 Bxd3 23. Nxd3 Rec8 24. Qa4 Qe8 25. Qa6 Rb8 26. Rc2 Nc8 27. Qa4 Qd7 28. Qb3 Qe8 29. Ra1 Ra7 30. Rca2 Rxa2 31. Rxa2 Rb7 32. Ra8 Kh7 33. Nde5 Bxe5 34. Nxe5 f6 35. Qd3+ f5 36. Qxf5+ g6 37. Qxc8 1-0

[Event "ECI op U20 2nd"]
[Site "Eeklo"]
[Date "1975.08.08"]
[Round "8"]
[White "Watgen, Mark"]
[Black "Schubert, Christian"]
[Result "0-1"]
[ECO "B08"]
[PlyCount "98"]
[EventDate "1975.08.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BEL"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Nf3 Bg7 5. Be2 0-0 6. 0-0 c6 7. Be3 b5 8. b4 a5 9. a3 Bb7 10. Nd2 Na6 11. Rb1 Nd7 12. Na2 Nc7 13. c4 axb4 14. cxb5 cxb5 15. Rxb4 Rxa3 16. Qc2 Qb8 17. Qb2 Qa8 18. Nc3 Nf6 19. Bxb5 Rc8 20. Ba4 Rxc3 21. Qxc3 Ncd5 22. Qxc8+ Bxc8 23. exd5 Nxd5 24. Rc4 Nxe3 25. fxe3 Ba6 26. Bc6 Qd8 27. Ra4 Bxf1 28. Ra8 Qxa8 29. Bxa8 Bd3 30. Kf2 Kf8 31. g3 Ke8 32. Nf3 h6 33. Ne1 Bc4 34. Nc2 Kd7 35. Nb4 e6 36. Bg2 Bf6 37. Bf3 Kc7 38. Nc2 Kb6 39. Ne1 Kb5 40. Nc2 Ka4 41. Bd1 Bb3 42. Ke2 Bc4+ 43. Kf2 Kb3 44. Ne1+ Kb4 45. Nf3 Bb5 46. Bc2 Kc3 47. Bb1 Kb2 48. Nd2 Kc1 49. Ke1 Bd8 0-1

[Event "ECI op U20 2nd"]
[Site "Eeklo"]
[Date "1975.08.07"]
[Round "7"]
[White "Watgen, Mark"]
[Black "Deleyn, Gunter"]
[Result "0-1"]
[ECO "C01"]
[PlyCount "58"]
[EventDate "1975.08.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BEL"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. exd5 exd5 4. Nc3 Bb4 5. Bd2 Nc6 6. Bb5 Nge7 7. Nf3 Bg4 8. 0-0 0-0 9. Bxc6 Nxc6 10. a3 Bxf3 11. Qxf3 Nxd4 12. Qd3 Bxc3 13. Bxc3 Ne6 14. Rad1 c6 15. Rfe1 Qg5 16. Be5 Rfe8 17. Bg3 Nc5 18. Qd4 Ne4 19. Qd3 Nxg3 20. fxg3 Qf6 21. c3 Re6 22. Rf1 Qe7 23. Qf3 Re8 24. Rb1 Re3 25. Qf4 f6 26. Qd4 b6 27. Qd2 Qe4 28. Qf2 Re2 29. Qf4 Qxg2# 0-1

[Event "ECI op U20 2nd"]
[Site "Eeklo"]
[Date "1975.08.06"]
[Round "6"]
[White "Cardon, Marc"]
[Black "Watgen, Mark"]
[Result "1-0"]
[ECO "D56"]
[PlyCount "85"]
[EventDate "1975.08.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BEL"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. Nf3 Nc6 2. d4 d5 3. c4 e6 4. Nc3 Nf6 5. Bg5 Be7 6. e3 0-0 7. Rc1 h6 8. Bh4 Re8 9. Bd3 b6 10. Bxf6 Bxf6 11. 0-0 Bb7 12. b3 Nb4 13. Be2 Qe7 14. a3 Na6 15. cxd5 exd5 16. Bxa6 Bxa6 17. Nxd5 Qd6 18. Nxf6+ Qxf6 19. Re1 Rac8 20. b4 Bb7 21. Qe2 Bxf3 22. Qxf3 Qxf3 23. gxf3 Re6 24. Rc3 Rd6 25. Rec1 Rd7 26. Kf1 Kf8 27. Ke2 Ke8 28. Kd3 Re7 29. Rc6 Kd8 30. e4 Re6 31. Rxe6 fxe6 32. Rg1 g5 33. h4 gxh4 34. Rh1 Ke7 35. Rxh4 Rh8 36. f4 Kf6 37. Kc4 c6 38. b5 cxb5+ 39. Kxb5 Kg6 40. d5 exd5 41. exd5 Rc8 42. f5+ Kg5 43. Rd4 1-0

[Event "ECI op U20 2nd"]
[Site "Eeklo"]
[Date "1975.08.05"]
[Round "5"]
[White "Watgen, Mark"]
[Black "Steinegger, Wolfgang"]
[Result "0-1"]
[ECO "B92"]
[PlyCount "80"]
[EventDate "1975.08.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BEL"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e5 7. Nf3 Be7 8. 0-0 Be6 9. Ng5 0-0 10. f4 exf4 11. Bxf4 Qd7 12. Nxe6 Qxe6 13. Bf3 Nbd7 14. Bg3 Rac8 15. Re1 Rfe8 16. Nd5 Ne5 17. Nf4 Qc4 18. c3 Rcd8 19. Nd5 Nxd5 20. exd5 Bf6 21. Be4 g6 22. Qb3 b5 23. Qxc4 Nxc4 24. Bf3 Rxe1+ 25. Rxe1 Nxb2 26. Rc1 Be5 27. Bf2 Rc8 28. Bb6 Rxc3 29. Rxc3 Bxc3 30. Kf1 Be5 31. h3 Na4 32. Be3 Nc3 33. a3 Nb1 34. Bc1 f5 35. g4 Bd4 36. Ke2 Bc5 37. gxf5 gxf5 38. Bh5 Bxa3 39. Be3 Bb2 40. Bb6 Nc3+ 0-1

[Event "ECI op U20 2nd"]
[Site "Eeklo"]
[Date "1975.08.04"]
[Round "4"]
[White "Triller, Rudolf"]
[Black "Watgen, Mark"]
[Result "1-0"]
[ECO "C78"]
[PlyCount "72"]
[EventDate "1975.08.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BEL"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 b5 5. Bb3 Nf6 6. 0-0 Bb7 7. d4 exd4 8. e5 Ne4 9. c3 f6 10. Re1 d5 11. exd6 Nb8 12. Ne5 fxe5 13. Qh5+ Kd7 14. Qf5+ Kc6 15. Qxe4+ Kb6 16. dxc7 Kxc7 17. Qxe5+ Qd6 18. cxd4 Nc6 19. Qxd6+ Bxd6 20. Be3 Nb4 21. Rd1 Be4 22. Nc3 Bb7 23. a3 Nc6 24. Nd5+ Kd8 25. Re1 h6 26. Nc3 Ne7 27. d5 Rf8 28. Ne4 Kd7 29. Nc5+ Bxc5 30. Bxc5 Rfe8 31. Re6 Nf5 32. Rae1 Rac8 33. Rxe8 Rxe8 34. Rxe8 Kxe8 35. Kf1 Ne7 36. d6 Nf5 1-0

[Event "ECI op U20 2nd"]
[Site "Eeklo"]
[Date "1975.08.03"]
[Round "3"]
[White "Watgen, Mark"]
[Black "Upton, Timothy J"]
[Result "0-1"]
[ECO "C55"]
[PlyCount "46"]
[EventDate "1975.08.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BEL"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 e5 2. Bc4 Nc6 3. Nf3 Nf6 4. Nc3 Nxe4 5. Bxf7+ Kxf7 6. Nxe4 d5 7. Ng3 e4 8. Ng1 Bc5 9. c3 Rf8 10. d4 exd3 11. Qxd3 Kg8 12. Be3 Ne5 13. Qe2 Bxe3 14. fxe3 Bg4 15. Qd2 Nc4 16. Qd4 Nxe3 17. Qd2 Qf6 18. Nh3 Rae8 19. Qd3 Nc4+ 20. Ne2 Rxe2+ 21. Qxe2 Bxe2 22. Kxe2 Re8+ 23. Kd1 Qf5 0-1

[Event "ECI op U20 2nd"]
[Site "Eeklo"]
[Date "1975.08.02"]
[Round "2"]
[White "Janssens, Mark"]
[Black "Watgen, Mark"]
[Result "1-0"]
[ECO "A10"]
[PlyCount "81"]
[EventDate "1975.08.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BEL"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. c4 d5 2. cxd5 Nf6 3. e3 Nxd5 4. Nc3 e6 5. Nf3 Nc6 6. Bb5 Bd7 7. a3 a6 8. Bc4 Bd6 9. b4 b5 10. Bb3 Nf6 11. Bb2 0-0 12. 0-0 Ne5 13. Nxe5 Bxe5 14. f4 Bxc3 15. Bxc3 Bc6 16. Bxf6 Qxf6 17. Rc1 Be4 18. d3 Rfd8 19. d4 Rac8 20. Rc5 c6 21. Rf2 h6 22. Bc2 Bxc2 23. Rfxc2 Rd6 24. Qf3 Qg6 25. f5 exf5 26. Qxf5 Qe6 27. Re5 Qxf5 28. Rxf5 Re8 29. Rc3 Ree6 30. Kf2 Rf6 31. Rxf6 Rxf6+ 32. Ke2 Kf8 33. e4 Ke7 34. Ke3 Re6 35. Kd3 g5 36. d5 cxd5 37. exd5 Rd6 38. Kd4 Kd7 39. Rf3 f6 40. g4 h5 41. gxh5 1-0

[Event "ECI op U20 2nd"]
[Site "Eeklo"]
[Date "1975.08.01"]
[Round "1"]
[White "Baart, Joan"]
[Black "Watgen, Mark"]
[Result "1-0"]
[ECO "D07"]
[PlyCount "50"]
[EventDate "1975.08.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BEL"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. c4 d5 2. cxd5 Nf6 3. d4 Nxd5 4. Nf3 Nc6 5. e4 Nb6 6. h3 e6 7. Nc3 g6 8. Bg5 f6 9. Bf4 Qe7 10. Bb5 Kf7 11. 0-0 e5 12. dxe5 Nxe5 13. Nxe5+ fxe5 14. Be3 Be6 15. Qf3+ Qf6 16. Qg3 Kg8 17. f4 Bg7 18. f5 Bc4 19. Bg5 Qf7 20. Bxc4 Nxc4 21. Nd5 Nd6 22. fxg6 hxg6 23. Ne7+ Kf8 24. Nxg6+ Kg8 25. Rxf7 Nxf7 1-0

