[Event "NED-chT 9596"]
[Site "Netherlands"]
[Date "1995.??.??"]
[Round "?"]
[White "Janssen, Coen"]
[Black "Lont, Addy"]
[Result "0-1"]
[ECO "A35"]
[BlackElo "2335"]
[PlyCount "64"]
[EventDate "1995.??.??"]
[EventType "team"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. Nf3 Bg7 6. Qb3 Nxc3 7. bxc3 c5 8. e3 0-0 9. Be2 Nc6 10. 0-0 cxd4 11. exd4 b6 12. Bg5 Bb7 13. Rad1 Qd6 14. Rfe1 Rac8 15. Bh4 Na5 16. Qb4 Qd5 17. Bf1 e6 18. Ne5 Nc6 19. Nxc6 Bxc6 20. c4 Qh5 21. Be7 Rfe8 22. Rd3 Qf5 23. Bd6 Red8 24. c5 Rd7 25. Ra3 Qd5 26. Rd1 e5 27. f3 bxc5 28. Bxc5 exd4 29. Rad3 Rb7 30. Qa3 Bb5 31. Bxd4 Bxd3 32. Bxg7 Kxg7 0-1

[Event "NED-chT 9495"]
[Site "Netherlands"]
[Date "1994.??.??"]
[Round "2"]
[White "Bohm, Hans"]
[Black "Janssen, Coen"]
[Result "1-0"]
[ECO "A45"]
[WhiteElo "2390"]
[PlyCount "125"]
[EventDate "1994.??.??"]
[EventType "team"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. d4 Nf6 2. c3 d6 3. Bg5 Nbd7 4. Nd2 e5 5. e3 Be7 6. Bd3 d5 7. Ne2 h6 8. Bxf6 Bxf6 9. b4 0-0 10. Qb3 c6 11. a4 Re8 12. 0-0 Nf8 13. Rac1 Bg4 14. Ng3 e4 15. Be2 Bxe2 16. Nxe2 Ne6 17. c4 Qd7 18. Rc2 h5 19. Rfc1 Rad8 20. cxd5 cxd5 21. b5 g5 22. Qb4 Be7 23. Qa5 h4 24. b6 a6 25. Nc3 h3 26. Qxd5 Qxd5 27. Nxd5 Rxd5 28. g4 Kg7 29. Nxe4 Bd8 30. Rc8 Re7 31. Ng3 Bxb6 32. Nf5+ Rxf5 33. gxf5 Nc7 34. Rd8 Ba5 35. Rd6 f6 36. Kf1 Ne8 37. Rd5 Bb4 38. Rd8 Kf7 39. Rcc8 a5 40. Ke2 Bd6 41. Kf3 Bxh2 42. Kg4 Bg1 43. Kxh3 Bxf2 44. d5 Rxe3+ 45. Kg2 Bg3 46. Rd7+ Kf8 47. d6 Bxd6 48. Rxd6 Ke7 49. Rb6 Nd6 50. Rc7+ Kd8 51. Rc5 Rd3 52. Kf1 Kd7 53. Ke2 Rd4 54. Ke3 Rd1 55. Rb2 Kd8 56. Rh2 Re1+ 57. Kd3 b6 58. Rc6 Kd7 59. Rxb6 Kc7 60. Ra6 Rd1+ 61. Kc2 Rd4 62. Rh7+ Kc8 63. Ra8# 1-0

[Event "NED-chT 9495"]
[Site "Netherlands"]
[Date "1994.??.??"]
[Round "4"]
[White "De Boer, Gert Jan"]
[Black "Janssen, Coen"]
[Result "1-0"]
[ECO "A55"]
[WhiteElo "2435"]
[PlyCount "65"]
[EventDate "1994.??.??"]
[EventType "team"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 d6 3. c4 Nbd7 4. Nc3 e5 5. e4 Be7 6. Be2 0-0 7. 0-0 c6 8. Re1 a6 9. Bf1 b5 10. a3 Bb7 11. h3 Qb8 12. Bg5 Bd8 13. Qc2 exd4 14. Nxd4 h6 15. Be3 Re8 16. Rad1 Ne5 17. Nf5 Bc7 18. c5 dxc5 19. Bxc5 Re6 20. Qd2 Ne8 21. f4 Nc4 22. Bxc4 bxc4 23. e5 Bc8 24. Qf2 Kh7 25. Nd4 Rg6 26. f5 Rg5 27. Ne4 Rh5 28. Qf3 Rh4 29. Qg3 Rxe4 30. Rxe4 Nf6 31. Re2 Nd7 32. Bd6 Bxd6 33. exd6 1-0

[Event "NED-chT 9495"]
[Site "Netherlands"]
[Date "1994.??.??"]
[Round "3"]
[White "Janssen, Coen"]
[Black "Bosman, Michiel"]
[Result "0-1"]
[ECO "E48"]
[BlackElo "2285"]
[PlyCount "73"]
[EventDate "1994.??.??"]
[EventType "team"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 0-0 5. Bd3 d5 6. Nge2 b6 7. 0-0 Bb7 8. cxd5 exd5 9. Ng3 Re8 10. a3 Bd6 11. b4 a6 12. Rb1 g6 13. f4 Nbd7 14. f5 Qe7 15. Rb2 Rab8 16. fxg6 fxg6 17. Rbf2 Rf8 18. e4 dxe4 19. Bc4+ Kg7 20. Be3 h6 21. Qc1 Rh8 22. Ba2 Rbf8 23. Qd2 b5 24. Qc1 Nb6 25. d5 Nc8 26. Nce2 Ng4 27. Bd4+ Be5 28. Qa1 Rxf2 29. Rxf2 Re8 30. d6 Nxd6 31. Rf1 Bxd4+ 32. Qxd4+ Qe5 33. Qf2 Nxf2 34. Rxf2 Qa1+ 35. Nf1 Qxa2 36. Nf4 Qxf2+ 37. Kxf2 0-1

[Event "NED-chT 9495"]
[Site "Netherlands"]
[Date "1994.??.??"]
[Round "5"]
[White "Janssen, Coen"]
[Black "Tjiam, Dharma"]
[Result "0-1"]
[ECO "E45"]
[BlackElo "2285"]
[PlyCount "64"]
[EventDate "1994.??.??"]
[EventType "team"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Nge2 Ba6 6. Qa4 c5 7. g3 Bxc3+ 8. Nxc3 0-0 9. dxc5 bxc5 10. Be2 d5 11. 0-0 Qd6 12. b4 Bxc4 13. Bxc4 dxc4 14. Qd1 Qc7 15. b5 Nbd7 16. f4 Rad8 17. Qc2 Nb6 18. a4 Rd3 19. a5 Nbd5 20. Nxd5 exd5 21. Rd1 Rxd1+ 22. Qxd1 Qd7 23. b6 axb6 24. a6 Ra8 25. Bb2 Ne4 26. Qc2 f6 27. Qa4 Qxa4 28. Rxa4 b5 29. Ra5 b4 30. a7 c3 31. Bc1 b3 32. Rb5 Rxa7 0-1

[Event "NED-chT 9495"]
[Site "Netherlands"]
[Date "1994.??.??"]
[Round "1"]
[White "Janssen, Coen"]
[Black "Vedder, Henk"]
[Result "0-1"]
[ECO "D02"]
[BlackElo "2375"]
[PlyCount "80"]
[EventDate "1994.??.??"]
[EventType "team"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. Bf4 c5 4. e3 Nc6 5. c3 Qb6 6. Qc1 Bf5 7. dxc5 Qxc5 8. Nbd2 Rc8 9. Nb3 Qb6 10. Nbd4 Bg6 11. Nxc6 bxc6 12. h3 Nd7 13. Be2 f6 14. 0-0 e5 15. Bh2 Bf7 16. c4 Rb8 17. b3 g6 18. cxd5 cxd5 19. a4 Bg7 20. Bb5 a6 21. Bxd7+ Kxd7 22. Rb1 Rhc8 23. Qd2 Qb4 24. Qe2 a5 25. Bg3 Rb6 26. Rbc1 Rxc1 27. Rxc1 Qxb3 28. Nd4 Qb2 29. Qxb2 Rxb2 30. Nb5 Bf8 31. Rc7+ Ke6 32. Rc6+ Kf5 33. Rc7 Be8 34. Nc3 Rc2 35. Nxd5 Rxc7 36. Nxc7 Bxa4 37. f3 g5 38. e4+ Kg6 39. Nd5 Bb3 40. Be1 Bc5+ 0-1

[Event "NED-chT 9495"]
[Site "Netherlands"]
[Date "1994.??.??"]
[Round "6"]
[White "Roobol, Martin"]
[Black "Janssen, Coen"]
[Result "1-0"]
[ECO "D31"]
[PlyCount "45"]
[EventDate "1994.??.??"]
[EventType "team"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 c6 4. e4 dxe4 5. Nxe4 Bb4+ 6. Bd2 Qxd4 7. Bxb4 Qxe4+ 8. Be2 Nd7 9. Nf3 c5 10. Bc3 Ngf6 11. Qd6 Qc6 12. Qg3 e5 13. Nxe5 Nxe5 14. Bxe5 0-0 15. Rd1 Ng4 16. Bxg4 Bxg4 17. Qxg4 f6 18. Bc3 Rae8+ 19. Kf1 Re4 20. Qd7 Qa6 21. Qd5+ Re6 22. Re1 Rfe8 23. f3 1-0

[Event "NED-chT 9495"]
[Site "Netherlands"]
[Date "1994.??.??"]
[Round "8"]
[White "Sutmuller, Jos"]
[Black "Janssen, Coen"]
[Result "1-0"]
[ECO "A55"]
[PlyCount "125"]
[EventDate "1994.??.??"]
[EventType "team"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 d6 3. Nc3 Nbd7 4. e4 e5 5. Be2 Be7 6. Nf3 0-0 7. h3 c6 8. Be3 a6 9. d5 cxd5 10. cxd5 b5 11. Nd2 Ne8 12. Nb3 Bg5 13. Qd2 Bxe3 14. Qxe3 g6 15. 0-0 Ng7 16. Rfd1 f5 17. exf5 gxf5 18. f4 Bb7 19. a4 b4 20. Na2 a5 21. Bb5 exf4 22. Qxf4 Nf6 23. Nac1 Rc8 24. Ne2 Ne4 25. Qe3 Nc5 26. Nf4 Nxb3 27. Qxb3 Qb6+ 28. Kh2 Ba6 29. Bc6 Qf2 30. Qg3 Qxg3+ 31. Kxg3 Kf7 32. Re1 Rc7 33. Re3 Re7 34. Rxe7+ Kxe7 35. Bb5 Bb7 36. Re1+ Kf7 37. Rc1 Rc8 38. Rxc8 Bxc8 39. Ne2 Kf6 40. Nd4 Ke5 41. Nc6+ Ke4 42. Nxa5 f4+ 43. Kf2 Kxd5 44. Nc6 Kc5 45. Ne7 Bb7 46. Bd3 h6 47. a5 Ne6 48. Nf5 h5 49. Be2 Nd4 50. Nxd4 Kxd4 51. a6 Bc8 52. a7 Bb7 53. Bxh5 Kd3 54. Bg6+ Kd4 55. h4 Ke5 56. h5 Kf6 57. Bd3 Kg5 58. Be2 Bc6 59. Bf3 d5 60. Ke2 Kf5 61. Kd2 Ke5 62. h6 Kf6 63. Kd3 1-0

[Event "Caorle op-A"]
[Site "Caorle"]
[Date "1991.07.13"]
[Round "9.31"]
[White "Buzzi, Dario"]
[Black "Janssen, Coen"]
[Result "1/2-1/2"]
[ECO "B13"]
[WhiteElo "2118"]
[BlackElo "2200"]
[PlyCount "27"]
[EventDate "1991.07.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ITA"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. Bd3 Nc6 5. c3 Nf6 6. Bf4 Bg4 7. Qb3 Qc8 8. Nd2 e6 9. h3 Bh5 10. Ngf3 Be7 11. 0-0 0-0 12. Rfe1 Bg6 13. Bxg6 hxg6 14. Ne5 1/2-1/2

[Event "Caorle op-A"]
[Site "Caorle"]
[Date "1991.07.12"]
[Round "8.28"]
[White "Janssen, Coen"]
[Black "Fabiano, Giuseppe"]
[Result "0-1"]
[ECO "A46"]
[WhiteElo "2200"]
[BlackElo "2193"]
[PlyCount "148"]
[EventDate "1991.07.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ITA"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 d6 3. Bf4 Nbd7 4. e3 Nh5 5. Bc4 Nxf4 6. exf4 e6 7. Nbd2 Be7 8. Qe2 Nb6 9. Bb3 a5 10. a3 0-0 11. 0-0-0 Nd5 12. g3 c6 13. c4 Nc7 14. h4 b5 15. Bc2 f5 16. g4 bxc4 17. gxf5 exf5 18. Rde1 Bf6 19. Qxc4+ Kh8 20. Ng5 d5 21. Qe2 Qe8 22. Qd1 Qd7 23. Ndf3 Rb8 24. Ne5 Bxe5 25. Rxe5 Ne8 26. Ne6 Qb7 27. Nxf8 Qxb2+ 28. Kd2 Nd6 29. Ke3 Nc4+ 30. Kf3 Nxe5+ 31. fxe5 Qxa3+ 32. Qd3 Qxf8 33. Qc3 Qb4 34. Qxc6 Bb7 35. Qd6 Qc3+ 36. Kg2 Ra8 37. Bxf5 Qxd4 38. e6 Qf6 39. Qd7 Qxf5 40. Qxb7 Rf8 41. Qb6 Qf3+ 42. Kg1 Qg4+ 43. Kf1 Qc4+ 44. Kg1 Qg4+ 45. Kf1 d4 46. Rh2 Rc8 47. Qb2 Qf4 48. Rh3 Rc1+ 49. Kg2 Qg4+ 50. Rg3 Qe4+ 51. Rf3 Rc8 52. e7 Qxe7 53. Qxd4 h6 54. Rf4 Rb8 55. Re4 Qd8 56. Qe5 Ra8 57. Rg4 Ra7 58. Qc5 Qd7 59. Rg6 a4 60. Qe5 Kg8 61. Qb8+ Kh7 62. Qb1 Kg8 63. Qb8+ Kf7 64. Rg3 Qb7+ 65. Rf3+ Kg6 66. Qg8 Qe4 67. Kg3 a3 68. Rf4 Qe5 69. Qa2 Kh5 70. Kf3 Rc7 71. Qd2 Rc3+ 72. Kg2 a2 73. Qb2 a1Q 74. Qxa1 Qd5+ 0-1

[Event "Caorle op-A"]
[Site "Caorle"]
[Date "1991.07.11"]
[Round "7.25"]
[White "Mudelsee, Manfred"]
[Black "Janssen, Coen"]
[Result "1-0"]
[ECO "B15"]
[WhiteElo "2265"]
[BlackElo "2200"]
[PlyCount "63"]
[EventDate "1991.07.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ITA"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Ng3 h5 6. h4 Bg4 7. N1e2 c5 8. f3 Bd7 9. Bg5 cxd4 10. Qxd4 Nc6 11. Qd2 Qc7 12. Nf4 Qe5+ 13. Be2 0-0-0 14. 0-0-0 g6 15. Rhe1 Bg7 16. c3 Qa5 17. Bc4 Bf5 18. Qe3 e6 19. Nxf5 gxf5 20. Bxe6+ fxe6 21. Bxf6 Bxf6 22. Qxe6+ Kb8 23. Qxf6 Qxa2 24. Rxd8+ Rxd8 25. Qxf5 Qa1+ 26. Qb1 Qa4 27. Qe4 Qa1+ 28. Kc2 Qa2 29. Ne6 Rd6 30. Nc5 Rd8 31. Qf4+ Ka8 32. Qc7 1-0

[Event "Caorle op-A"]
[Site "Caorle"]
[Date "1991.07.10"]
[Round "6.27"]
[White "Janssen, Coen"]
[Black "Tortarolo, Massimiliano"]
[Result "1/2-1/2"]
[ECO "A80"]
[WhiteElo "2200"]
[BlackElo "2245"]
[PlyCount "38"]
[EventDate "1991.07.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ITA"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 f5 2. Nc3 d5 3. Bg5 c6 4. e3 g6 5. h4 Bg7 6. Qf3 Be6 7. Nge2 Nf6 8. Nf4 Bf7 9. h5 Nbd7 10. hxg6 hxg6 11. Rxh8+ Bxh8 12. Qh3 Bg7 13. Bh6 Bxh6 14. Qxh6 Nf8 15. Qg7 Qd6 16. 0-0-0 Ng4 17. Nd3 Qf6 18. Qxf6 Nxf6 19. Be2 N6d7 1/2-1/2

[Event "Caorle op-A"]
[Site "Caorle"]
[Date "1991.07.09"]
[Round "5.25"]
[White "Carnic, Srdjan"]
[Black "Janssen, Coen"]
[Result "1/2-1/2"]
[ECO "A55"]
[WhiteElo "2275"]
[BlackElo "2200"]
[PlyCount "71"]
[EventDate "1991.07.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ITA"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 d6 3. Nc3 Nbd7 4. e4 e5 5. Nf3 Be7 6. Be2 0-0 7. 0-0 c6 8. Bg5 Ne8 9. Bxe7 Qxe7 10. Qd2 g6 11. Ne1 Ng7 12. Nc2 Re8 13. Rae1 Ne6 14. g3 Nxd4 15. Nxd4 exd4 16. Qxd4 Nf8 17. f4 Ne6 18. Qd2 Ng7 19. Bf3 Bh3 20. Rf2 Rad8 21. Qd4 Ne6 22. Qd2 Ng7 23. Rfe2 Qd7 24. b4 Bg4 25. Bxg4 Qxg4 26. Kg2 Qe6 27. Qd4 a6 28. a4 c5 29. bxc5 dxc5 30. Qxc5 Rc8 31. Qd5 Rxc4 32. f5 Qc6 33. fxg6 hxg6 34. Qxc6 bxc6 35. Re3 Re5 36. Rd1 1/2-1/2

[Event "Caorle op-A"]
[Site "Caorle"]
[Date "1991.07.08"]
[Round "4.30"]
[White "Janssen, Coen"]
[Black "Beulen, Marcel"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "2200"]
[BlackElo "2280"]
[PlyCount "77"]
[EventDate "1991.07.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ITA"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. Bf4 e6 4. e3 Bd6 5. Bg3 Ne4 6. Bd3 Nxg3 7. hxg3 c5 8. c3 Nc6 9. Nbd2 Bd7 10. Qe2 cxd4 11. exd4 Qf6 12. Rh5 0-0-0 13. Ne5 Be8 14. Ndf3 g6 15. Rh1 h5 16. b4 Qe7 17. Nxc6 Bxc6 18. b5 Be8 19. b6 axb6 20. Kd2 g5 21. Rab1 Bc7 22. Ne5 h4 23. g4 Rg8 24. Bc2 f6 25. Nd3 Qd6 26. Rhe1 Bd7 27. a4 Rge8 28. a5 bxa5 29. Nc5 Bc6 30. Kd1 e5 31. Bf5+ Kb8 32. Qa6 b6 33. Rxb6+ Bxb6 34. Qxb6+ Ka8 35. Qxa5+ Kb8 36. Qb6+ Ka8 37. Kd2 Ba4 38. Qa5+ Kb8 39. Rb1+ 1-0

[Event "Caorle op-A"]
[Site "Caorle"]
[Date "1991.07.07"]
[Round "3.27"]
[White "Marinelli, Tullio"]
[Black "Janssen, Coen"]
[Result "1-0"]
[ECO "A95"]
[WhiteElo "2365"]
[BlackElo "2200"]
[PlyCount "117"]
[EventDate "1991.07.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ITA"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 e6 3. c4 c6 4. Nc3 f5 5. g3 Nf6 6. Bg2 Be7 7. 0-0 0-0 8. b3 Ne4 9. Bb2 Nd7 10. Qc2 Qe8 11. Ne5 Nxc3 12. Qxc3 Nxe5 13. dxe5 Rf7 14. Rac1 Qf8 15. cxd5 exd5 16. e3 Be6 17. Rfd1 Ba3 18. Bxa3 Qxa3 19. Rc2 Rd7 20. Bf1 Rc8 21. b4 Qxc3 22. Rxc3 Re7 23. a3 Bd7 24. f4 b5 25. Kf2 a5 26. Ke2 axb4 27. axb4 Ra8 28. Kd3 Ra4 29. Rb1 Kf7 30. Be2 Re8 31. Rb2 Rea8 32. Kd4 Ra3 33. Rxa3 Rxa3 34. Bd3 g6 35. Bc2 Ke7 36. Rb3 Ra2 37. Kc3 Be6 38. Rb2 Ra3+ 39. Kd4 Kd7 40. Bb3 Ke7 41. Kc5 Bd7 42. Rb1 Be8 43. h3 h5 44. Kd4 Bf7 45. Kc3 d4+ 46. exd4 Rxb3+ 47. Rxb3 Bxb3 48. Kxb3 Ke6 49. Kc3 Kd5 50. h4 Ke6 51. d5+ Kxd5 52. Kd3 c5 53. bxc5 Kxc5 54. Kc3 Kd5 55. Kb4 Kc6 56. e6 Kd6 57. Kxb5 Kxe6 58. Kc6 Ke7 59. Kc7 1-0

[Event "Caorle op-A"]
[Site "Caorle"]
[Date "1991.07.06"]
[Round "2.30"]
[White "Janssen, Coen"]
[Black "Voltolini, Giuseppe"]
[Result "1/2-1/2"]
[ECO "D02"]
[WhiteElo "2200"]
[BlackElo "2300"]
[PlyCount "52"]
[EventDate "1991.07.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ITA"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 d5 3. Bf4 Bg4 4. Ne5 Bh5 5. f3 e6 6. g4 Bg6 7. h4 h5 8. Nxg6 fxg6 9. g5 Nfd7 10. Qd3 Kf7 11. Bh3 Nb6 12. Nd2 Nc6 13. c3 Qd7 14. e4 Bd6 15. Bxd6 Qxd6 16. e5 Qe7 17. 0-0 Qe8 18. Nb3 Nd7 19. a4 Rf8 20. a5 a6 21. c4 Ne7 22. f4 c6 23. c5 Nc8 24. Rf3 Kg8 25. Raf1 Qf7 26. Nc1 Ne7 1/2-1/2

[Event "Caorle op-A"]
[Site "Caorle"]
[Date "1991.07.05"]
[Round "1.28"]
[White "Jurkovic, Ante"]
[Black "Janssen, Coen"]
[Result "1-0"]
[ECO "B15"]
[WhiteElo "2325"]
[BlackElo "2200"]
[PlyCount "83"]
[EventDate "1991.07.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ITA"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Nf6 5. Bd3 Nxe4 6. Bxe4 Nd7 7. c3 Nf6 8. Bd3 Bg4 9. Qb3 Qb6 10. Ne2 Qxb3 11. axb3 g6 12. Nf4 Bg7 13. f3 Bd7 14. Kf2 0-0 15. Re1 Rfe8 16. b4 Nd5 17. Bc4 Nxf4 18. Bxf4 a6 19. Re2 e6 20. g4 h6 21. h4 Bf6 22. Kg3 Bg7 23. Be5 Bxe5+ 24. dxe5 Kf8 25. Rd2 Ke7 26. Rad1 Red8 27. Rd6 a5 28. bxa5 Rxa5 29. f4 Raa8 30. Be2 Be8 31. c4 Rxd6 32. exd6+ Kd7 33. c5 f6 34. Rd4 b5 35. Bd1 Ra2 36. Rd2 b4 37. Bb3 Ra1 38. Re2 Rc1 39. Bxe6+ Kd8 40. d7 Bxd7 41. Rd2 Rxc5 42. Rxd7+ 1-0

[Event "Haarlem ACCOM op2"]
[Site "Haarlem"]
[Date "1988.??.??"]
[Round "4"]
[White "Janssen, Coen"]
[Black "De Groot, N."]
[Result "0-1"]
[ECO "C63"]
[PlyCount "36"]
[EventDate "1988.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 f5 4. d3 fxe4 5. dxe4 Nf6 6. Nc3 Bc5 7. 0-0 d6 8. Re1 0-0 9. Bg5 Ne7 10. Bc4+ Kh8 11. Qd2 Qe8 12. Rad1 Qh5 13. Bxf6 Rxf6 14. Qg5 Bxf2+ 15. Kh1 Qxg5 16. Nxg5 Bxe1 17. Rxe1 g6 18. Rd1 Bg4 0-1

[Event "Haarlem ACCOM op2"]
[Site "Haarlem"]
[Date "1988.??.??"]
[Round "6"]
[White "Janssen, Coen"]
[Black "Kuyper, A."]
[Result "0-1"]
[ECO "B25"]
[PlyCount "70"]
[EventDate "1988.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 d6 3. g3 Nf6 4. d3 g6 5. Bg2 Bg7 6. Nge2 Nc6 7. 0-0 Bd7 8. Bg5 h6 9. Bxf6 Bxf6 10. Rb1 h5 11. Nd5 h4 12. Nxf6+ exf6 13. Nf4 hxg3 14. fxg3 f5 15. exf5 Bxf5 16. Bxc6+ bxc6 17. Re1+ Kd7 18. Qf3 Qg5 19. Qf2 Rab8 20. b4 Bg4 21. c3 Kc7 22. a4 Rhe8 23. bxc5 Qxc5 24. Qxc5 dxc5 25. Kf2 Rxe1 26. Rxe1 Rb2+ 27. Ne2 Ra2 28. h3 Bxh3 29. Kf3 Rxa4 30. Nf4 Bf5 31. Re7+ Kb6 32. Rxf7 Ra3 33. Rf6 c4 34. Nd5+ Kc5 35. Ne3 Bxd3 0-1

[Event "Haarlem ACCOM op2"]
[Site "Haarlem"]
[Date "1988.??.??"]
[Round "2"]
[White "Janssen, Coen"]
[Black "Schuit, Adrie"]
[Result "0-1"]
[ECO "B00"]
[PlyCount "68"]
[EventDate "1988.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 b6 2. Nc3 Bb7 3. Nf3 e6 4. Be2 c5 5. d3 Nf6 6. Bg5 Be7 7. Qd2 d5 8. exd5 Nxd5 9. Bxe7 Qxe7 10. 0-0 0-0 11. Rfe1 Nd7 12. Ne4 N7f6 13. Ne5 Nxe4 14. dxe4 Nf6 15. Bd3 Rad8 16. Qg5 Qd6 17. Ng4 Nxg4 18. Qxg4 Qe5 19. Re3 Qxb2 20. Rae1 Qe5 21. f4 Qd4 22. Kh1 c4 23. c3 Qxc3 24. Bb1 Qd2 25. e5 g6 26. h4 Rd4 27. h5 Rxf4 28. Qg3 Rh4+ 29. Kg1 Rxh5 30. R1e2 Qd4 31. Rf2 Qh4 32. Qxh4 Rxh4 33. g3 Rg4 34. Bc2 Rd8 0-1

[Event "Haarlem ACCOM op2"]
[Site "Haarlem"]
[Date "1988.??.??"]
[Round "3"]
[White "Kamps, Ronald"]
[Black "Janssen, Coen"]
[Result "0-1"]
[ECO "C18"]
[PlyCount "86"]
[EventDate "1988.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 Ne7 7. Qg4 Qc7 8. Bb5+ Bd7 9. a4 Bxb5 10. axb5 cxd4 11. Qxd4 Nf5 12. b6 Qc6 13. Qa4 Qxa4 14. Rxa4 a6 15. f4 Nd7 16. Nf3 Rc8 17. Kd2 0-0 18. Rb4 Rc6 19. Ba3 Rfc8 20. Rb3 Nxb6 21. Kd3 Nc4 22. Bc1 b5 23. g4 Ne7 24. Nd4 R6c7 25. Ba3 Na5 26. Bxe7 Nxb3 27. cxb3 Rxe7 28. Ra1 Rec7 29. Rxa6 Rxc3+ 30. Kd2 Rh3 31. Nxb5 Rxh2+ 32. Kd3 Rh3+ 33. Kd2 Rxb3 34. Nd6 Rf8 35. f5 Rg3 36. Ra4 g6 37. f6 h5 38. gxh5 gxh5 39. Nb5 Rb8 40. Nc3 Rb2+ 41. Kc1 Rh2 42. Ra8+ Kh7 43. Rf8 Rxc3+ 0-1

[Event "Haarlem ACCOM op2"]
[Site "Haarlem"]
[Date "1988.??.??"]
[Round "1"]
[White "Van Beusekom, Leo"]
[Black "Janssen, Coen"]
[Result "1-0"]
[ECO "C06"]
[PlyCount "65"]
[EventDate "1988.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 Nf6 4. e5 Nfd7 5. Ngf3 c5 6. c3 Nc6 7. Bd3 Qb6 8. Qb3 c4 9. Qxb6 Nxb6 10. Bc2 Be7 11. b3 0-0 12. 0-0 f6 13. Re1 fxe5 14. dxe5 Bd7 15. Bb2 Rac8 16. Rac1 cxb3 17. axb3 Be8 18. Nf1 Bh5 19. Bd1 Bxf3 20. Bxf3 Rf4 21. Ra1 a6 22. Bc1 Rff8 23. Be3 Nd7 24. Bg4 Nd8 25. Bd4 Bg5 26. f4 Be7 27. Ne3 Bc5 28. Nxd5 Bxd4+ 29. cxd4 exd5 30. Bxd7 Rc3 31. e6 Nc6 32. e7 Nxe7 33. Rxe7 1-0

[Event "Haarlem ACCOM op"]
[Site "Haarlem"]
[Date "1987.??.??"]
[Round "4"]
[White "Bierenbroodspot, Paul"]
[Black "Janssen, Coen"]
[Result "1-0"]
[ECO "B14"]
[WhiteElo "2260"]
[PlyCount "65"]
[EventDate "1987.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 Nc6 6. Nf3 e6 7. c5 Be7 8. Bb5 0-0 9. Qe2 Ne4 10. 0-0 f5 11. Rd1 Bf6 12. Bxc6 bxc6 13. Nd2 Qc7 14. Ndxe4 fxe4 15. b4 e5 16. Be3 exd4 17. Bxd4 Bxd4 18. Rxd4 Qe5 19. Rad1 a6 20. a4 Ra7 21. Qe3 Rff7 22. f3 Qf6 23. Rf1 Rfe7 24. f4 g5 25. g3 Rg7 26. f5 g4 27. b5 Rg5 28. Rxe4 Rxf5 29. Rxf5 Bxf5 30. Rf4 Qg6 31. Qe5 axb5 32. axb5 cxb5 33. Nxd5 1-0

[Event "Haarlem ACCOM op"]
[Site "Haarlem"]
[Date "1987.??.??"]
[Round "5"]
[White "Carrion Lara, Luis"]
[Black "Janssen, Coen"]
[Result "0-1"]
[ECO "B16"]
[PlyCount "80"]
[EventDate "1987.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ gxf6 6. c3 Bf5 7. Ne2 Nd7 8. Ng3 Bg6 9. h4 h5 10. Be2 Qa5 11. b4 Qc7 12. Bxh5 Bxh5 13. Nxh5 a5 14. Be3 axb4 15. cxb4 e6 16. 0-0 Bxb4 17. g4 0-0-0 18. Rb1 Bd6 19. f4 Rdg8 20. Kh2 e5 21. dxe5 fxe5 22. Kh3 exf4 23. Bxf4 Bxf4 24. Nxf4 Ne5 25. Rg1 Nc4 26. Qd4 Ne5 27. Rb3 Rd8 28. Qe4 Qe7 29. Qf5+ Kc7 30. h5 Rhg8 31. g5 Qd6 32. Re1 Rge8 33. Rbe3 f6 34. Qxf6 Qd7+ 35. Kg2 Ng4 36. Ne6+ Kc8 37. Ra3 Qd2+ 38. Kf3 Nxf6 39. Ra8+ Kd7 40. Rxd8+ Rxd8 0-1

[Event "Haarlem ACCOM op"]
[Site "Haarlem"]
[Date "1987.??.??"]
[Round "3"]
[White "Janssen, Coen"]
[Black "Martinez, A."]
[Result "1-0"]
[ECO "A61"]
[PlyCount "57"]
[EventDate "1987.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. c4 c5 4. d5 exd5 5. cxd5 d6 6. Nc3 g6 7. Bg5 Bg7 8. e3 0-0 9. Nd2 a6 10. a4 Nbd7 11. Be2 Qc7 12. 0-0 Re8 13. Bf4 Ne5 14. a5 Nfd7 15. Bg3 f5 16. e4 Nf6 17. Bxe5 Rxe5 18. Nc4 Re8 19. e5 dxe5 20. Na4 Bd7 21. d6 Qc6 22. Ncb6 Rad8 23. b4 c4 24. Bxc4+ Kh8 25. Nc5 Bf8 26. Bf7 Bxd6 27. Ncxd7 Nxd7 28. Bxe8 Rxe8 29. Rc1 1-0

[Event "Haarlem ACCOM op"]
[Site "Haarlem"]
[Date "1987.??.??"]
[Round "1"]
[White "Janssen, Coen"]
[Black "Narings, Niek"]
[Result "1/2-1/2"]
[ECO "A80"]
[PlyCount "110"]
[EventDate "1987.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. d4 e6 2. Nf3 f5 3. Nc3 Nf6 4. Bg5 d5 5. g3 c6 6. Bg2 Bd6 7. 0-0 0-0 8. Ne5 Nbd7 9. Nxd7 Bxd7 10. f4 Qb6 11. Bxf6 Rxf6 12. Na4 Qa5 13. c3 b6 14. b4 Qa6 15. Nb2 Rc8 16. a4 c5 17. dxc5 bxc5 18. b5 Qb6 19. c4 d4 20. a5 Qc7 21. Nd3 Rb8 22. Qd2 e5 23. fxe5 Bxe5 24. Nxe5 Qxe5 25. Qf4 Qxf4 26. gxf4 Kf8 27. Rfb1 a6 28. b6 Bc6 29. Bxc6 Rxc6 30. Rb3 Re6 31. Kf2 Re4 32. Kf3 Rb7 33. Rd1 Kf7 34. Rdd3 h6 35. h4 g6 36. Rb2 Kf8 37. Rbd2 Rbe7 38. Rb2 Rb7 39. Rbb3 Kf7 40. e3 dxe3 41. Rxe3 Rxc4 42. Rbc3 Rxc3 43. Rxc3 Ke7 44. Rxc5 Kd7 45. Ke3 h5 46. Kd4 Kd6 47. Rc8 Re7 48. Rc4 Re4+ 49. Kd3 Re1 50. Kd4 Rh1 51. Kd3 Rxh4 52. b7 Rh3+ 53. Kc2 Rh2+ 54. Kc3 Rh3+ 55. Kd4 Rb3 1/2-1/2

[Event "Haarlem ACCOM op"]
[Site "Haarlem"]
[Date "1987.??.??"]
[Round "6"]
[White "Janssen, Coen"]
[Black "Straat, Evert Jan"]
[Result "1-0"]
[ECO "A48"]
[BlackElo "2260"]
[PlyCount "61"]
[EventDate "1987.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 0-0 5. h3 c5 6. c3 b6 7. Be2 Bb7 8. 0-0 d6 9. a4 a6 10. Nbd2 Nbd7 11. Qc2 Qc7 12. Bh2 cxd4 13. exd4 Nd5 14. Rfe1 Rfe8 15. Qb3 Bh6 16. Bc4 Qc6 17. Ne4 Rac8 18. Bxd5 Qxd5 19. c4 Qa5 20. d5 Nc5 21. Qa3 b5 22. b4 Qxa4 23. bxc5 Qxc4 24. cxd6 Bxd5 25. d7 Bxe4 26. Ne5 Qd5 27. dxe8Q+ Rxe8 28. Rad1 Qa8 29. f3 Bd5 30. Ng4 Bg5 31. Re5 1-0

[Event "Haarlem ACCOM op"]
[Site "Haarlem"]
[Date "1987.??.??"]
[Round "7"]
[White "Knoppert, Erik"]
[Black "Janssen, Coen"]
[Result "1-0"]
[ECO "B16"]
[WhiteElo "2290"]
[PlyCount "80"]
[EventDate "1987.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ gxf6 6. c3 Bf5 7. Bc4 e6 8. Ne2 Nd7 9. 0-0 Qc7 10. Bf4 Bd6 11. Bxd6 Qxd6 12. Ng3 Bg6 13. Qe2 0-0-0 14. Rad1 Nb6 15. Bb3 Qf4 16. Qe3 Qxe3 17. fxe3 f5 18. Rde1 c5 19. dxc5 Nd7 20. e4 f4 21. Rxf4 Nxc5 22. Bc2 h5 23. h4 Nd3 24. Bxd3 Rxd3 25. Rf3 Rd2 26. Rf2 Rd3 27. Kh2 Rhd8 28. Ree2 Rd1 29. a3 Rc1 30. e5 Rcd1 31. Ne4 Bxe4 32. Rxe4 Rf8 33. Ref4 Rd5 34. Re2 Kd7 35. Rf6 Ke7 36. Rh6 Rg8 37. Rxh5 Rg7 38. Rh8 Rd3 39. Rb8 Rg4 40. Rxb7+ Kf8 1-0

[Event "Haarlem ACCOM op"]
[Site "Haarlem"]
[Date "1987.??.??"]
[Round "2"]
[White "Rosegg, Dennis"]
[Black "Janssen, Coen"]
[Result "0-1"]
[ECO "D13"]
[PlyCount "72"]
[EventDate "1987.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 c6 3. d4 d5 4. cxd5 cxd5 5. Nc3 Nc6 6. Bf4 Bg4 7. e3 Qb6 8. Rb1 e6 9. Bd3 Be7 10. 0-0 0-0 11. h3 Bh5 12. a3 Rfc8 13. Na4 Qa5 14. b4 Bxf3 15. gxf3 Qd8 16. Rc1 Nh5 17. Bh2 f5 18. f4 Nf6 19. f3 Qe8 20. Bg3 Nh5 21. Kh2 Nxg3 22. Kxg3 g5 23. fxg5 f4+ 24. exf4 Bd6 25. Bb1 Qf7 26. Kf2 Qxf4 27. Qd3 Qh4+ 28. Ke2 Nxd4+ 29. Kd1 Rxc1+ 30. Kxc1 Rc8+ 31. Kb2 Be5 32. Ka2 Qxh3 33. Nb2 Qh2 34. f4 Bg7 35. Re1 Nb5 36. Re2 Qxe2 0-1

[Event "NED Open-ch16"]
[Site "Dieren"]
[Date "1985.07.29"]
[Round "1"]
[White "Noomen, Jeroen"]
[Black "Janssen, Coen"]
[Result "1-0"]
[ECO "A55"]
[PlyCount "69"]
[EventDate "1985.07.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 d6 3. Nf3 Nbd7 4. Nc3 e5 5. e4 c6 6. Be2 Be7 7. 0-0 0-0 8. Qc2 a6 9. h3 b5 10. Be3 Bb7 11. a3 Rc8 12. dxe5 dxe5 13. Rad1 Qc7 14. Nh4 g6 15. Nf3 Nh5 16. Bh6 Rfe8 17. Ng5 Nf4 18. Bg4 Rcd8 19. cxb5 Nc5 20. b4 Rxd1 21. Rxd1 Bxg5 22. Bxg5 Nce6 23. Bxf4 exf4 24. bxa6 Bxa6 25. Bxe6 Rxe6 26. Qd2 Qe5 27. Na4 Re8 28. Nc5 Bc8 29. Qd6 Qh5 30. Rd3 Be6 31. Qxc6 Rc8 32. Qd6 Bc4 33. Rd4 Qe2 34. Qxf4 Ra8 35. Qf6 1-0

[Event "NED Open-ch15"]
[Site "Dieren"]
[Date "1984.07.30"]
[Round "1"]
[White "Ligterink, Gert"]
[Black "Janssen, Coen"]
[Result "1-0"]
[ECO "A55"]
[WhiteElo "2445"]
[PlyCount "73"]
[EventDate "1984.07.30"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 d6 3. c4 Nbd7 4. Nc3 e5 5. e4 Be7 6. Be2 0-0 7. 0-0 c6 8. Qc2 a6 9. Rd1 Qc7 10. h3 b5 11. a3 Bb7 12. Be3 Rac8 13. Rac1 Qb8 14. b4 c5 15. bxc5 exd4 16. Nxd4 Nxc5 17. Bf3 Rfe8 18. Nd5 Nxd5 19. exd5 Nd7 20. Nc6 Bxc6 21. dxc6 Ne5 22. Be4 Nxc4 23. Bxh7+ Kf8 24. Bf5 Nxe3 25. fxe3 Rc7 26. Bd7 Rd8 27. Rf1 Bf6 28. Qd3 Qb6 29. Qxd6+ Kg8 30. Qg3 Bb2 31. Rcd1 Bxa3 32. Rxf7 Kxf7 33. Qf4+ Kg8 34. Be6+ Kh7 35. Rxd8 Rxc6 36. Rh8+ Kxh8 37. Qh4# 1-0

[Event "NED Open-ch14"]
[Site "Dieren"]
[Date "1983.08.??"]
[Round "1"]
[White "Janssen, Coen"]
[Black "Bark, Eric"]
[Result "0-1"]
[ECO "A53"]
[PlyCount "80"]
[EventDate "1983.08.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 d6 3. c4 Bg4 4. Qb3 Qc8 5. h3 Bh5 6. Bg5 Nbd7 7. Nbd2 e6 8. g3 Be7 9. Bg2 0-0 10. 0-0 c6 11. e4 e5 12. Qe3 Re8 13. d5 cxd5 14. cxd5 Bxf3 15. Qxf3 Nxd5 16. exd5 Bxg5 17. Ne4 Be7 18. Rac1 Qd8 19. h4 g6 20. h5 f5 21. hxg6 hxg6 22. Nc3 Bg5 23. Rc2 e4 24. Qd1 Ne5 25. Nb5 Qd7 26. Nc7 Qh7 27. Nxe8 Rxe8 28. Re1 Bd8 29. Rc8 Qd7 30. Qc2 Nd3 31. Re2 a5 32. Qc3 Kf7 33. a3 a4 34. Rc2 Ba5 35. Qxa5 Rxc8 36. Rxc8 Qxc8 37. Qxa4 Qc5 38. Qd7+ Kf6 39. Qd8+ Ke5 40. Qe7+ Kxd5 0-1

[Event "NED Open-ch14"]
[Site "Dieren"]
[Date "1983.08.??"]
[Round "8"]
[White "Sikkel, Dirk"]
[Black "Janssen, Coen"]
[Result "1-0"]
[ECO "C41"]
[PlyCount "55"]
[EventDate "1983.08.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 d6 3. c3 Nf6 4. Bd3 Be7 5. 0-0 0-0 6. Bc2 c6 7. d4 Qc7 8. h3 b5 9. Be3 Nbd7 10. Nbd2 Bb7 11. Nh4 g6 12. Bg5 Rfe8 13. f4 Nh5 14. Bxe7 Rxe7 15. fxe5 dxe5 16. Nf5 Ree8 17. Nh6+ Kg7 18. Rxf7+ Kxh6 19. Qg4 Bc8 20. Nf3 Qd8 21. h4 Nf4 22. Qg5+ Qxg5 23. hxg5+ Kh5 24. Kf2 Nf8 25. Rh1+ Nh3+ 26. gxh3 Be6 27. h4 Bxf7 28. Nxe5 1-0

[Event "NED Open-ch13"]
[Site "Dieren"]
[Date "1982.08.??"]
[Round "6"]
[White "Klip, Hans"]
[Black "Janssen, Coen"]
[Result "1-0"]
[ECO "A30"]
[PlyCount "55"]
[EventDate "1982.06.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. b3 Nf6 2. Bb2 g6 3. e3 Bg7 4. c4 0-0 5. Nf3 c5 6. Be2 Na6 7. d3 Nc7 8. Qc2 d6 9. Nc3 a6 10. 0-0 Rb8 11. Rfd1 b6 12. d4 Qe8 13. dxc5 dxc5 14. e4 Ne6 15. e5 Nd7 16. Nd5 Bb7 17. Re1 Rc8 18. Rad1 Nc7 19. Qd2 Bc6 20. Qe3 Kh8 21. Ng5 Ne6 22. Bg4 Nxg5 23. Qxg5 e6 24. Nf6 Bxf6 25. exf6 Qd8 26. Rd3 Qc7 27. Qh6 Rg8 28. Qxh7+ 1-0

