[Event "Vlissingen HZ op 26th"]
[Site "Vlissingen"]
[Date "2024.08.03"]
[Round "1"]
[White "Welten, Hans"]
[Black "Frayna, Janelle Mae"]
[Result "0-1"]
[ECO "D97"]
[WhiteElo "1857"]
[BlackElo "2162"]
[PlyCount "92"]
[EventDate "2024.08.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 221 Extra"]
[Source "ChessBase"]
[SourceDate "2024.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2024.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 0-0 7. e4 a6 8. Be3 b5 9. Qb3 Bb7 10. Nd2 Ng4 11. Be2 Nxe3 12. fxe3 e5 13. d5 Qh4+ 14. g3 Qh3 15. 0-0-0 Bh6 16. Bf1 Qc8 17. Re1 Nd7 18. Bh3 Qd8 19. Bxd7 Qxd7 20. Nf3 Qd6 21. Kb1 b4 22. Nd1 f5 23. Nd2 fxe4 24. Nc4 Bxd5 25. Nxd6 Bxb3 26. Nxe4 Bd5 27. Ndf2 Rf3 28. Rd1 c6 29. Rhe1 Raf8 30. Rd3 Bc4 31. Rd6 Bd5 32. Nf6+ R8xf6 33. Rxf6 Rxf6 34. Ng4 Be4+ 35. Ka1 Kg7 36. Nxf6 Kxf6 37. b3 Bd3 38. Kb2 e4 39. Kc1 Kf5 40. h3 a5 41. Kd2 Bg7 42. Kc1 c5 43. Rg1 c4 44. Rh1 Ke6 45. g4 a4 46. bxa4 b3 0-1

[Event "Vlissingen HZ op 25th"]
[Site "Vlissingen"]
[Date "2023.08.05"]
[Round "1"]
[White "Krasenkow, Michal"]
[Black "Welten, Hans"]
[Result "1-0"]
[ECO "B38"]
[WhiteElo "2534"]
[BlackElo "1828"]
[PlyCount "55"]
[EventDate "2023.08.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. Nf3 c5 2. c4 Nf6 3. Nc3 Nc6 4. d4 cxd4 5. Nxd4 g6 6. e4 d6 7. Be2 Bg7 8. Be3 0-0 9. 0-0 Bd7 10. f4 Qc8 11. Kh1 Bg4 12. Bxg4 Nxg4 13. Bg1 Nxd4 14. Bxd4 Bxd4 15. Qxd4 Qc5 16. Qxc5 dxc5 17. Rf3 Rfd8 18. h3 Nf6 19. e5 Ne8 20. f5 Rd4 21. Nd5 e6 22. fxe6 fxe6 23. Ne7+ Kg7 24. Raf1 Rad8 25. Rf7+ Kh6 26. Ng8+ Kg5 27. Rxh7 Rxc4 28. Nh6 1-0

[Event "Vlissingen HZ op 24th"]
[Site "Vlissingen"]
[Date "2022.08.12"]
[Round "8"]
[White "Coenen, Eduard"]
[Black "Welten, Hans"]
[Result "1-0"]
[ECO "D00"]
[WhiteElo "2063"]
[BlackElo "1844"]
[PlyCount "93"]
[EventDate "2022.08.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 209 Extra"]
[Source "ChessBase"]
[SourceDate "2022.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c3 e6 3. Bf4 c5 4. e3 d5 5. Nd2 Bd6 6. Bg3 Bxg3 7. hxg3 Nbd7 8. f4 Rb8 9. Bd3 b5 10. g4 g6 11. g5 Ng8 12. Ngf3 Ne7 13. a3 a5 14. Kf2 Qb6 15. b4 c4 16. Bc2 a4 17. Rh2 Nc6 18. Rh6 Nf8 19. Nf1 Rb7 20. N1h2 Re7 21. Ng4 Kd8 22. Nf6 Kc7 23. Qh1 Kb7 24. Nxh7 Rxh7 25. Rxh7 Nxh7 26. Qxh7 Qd8 27. Rh1 Qf8 28. Qh6 Qg8 29. Qh8 Qxh8 30. Rxh8 Kc7 31. Nh2 Nd8 32. Ng4 Nb7 33. Nf6 Nd6 34. g4 Kb7 35. Rh7 Rc7 36. e4 dxe4 37. Nxe4 Nxe4+ 38. Bxe4+ Kb6 39. Ke3 f5 40. Rxc7 Kxc7 41. gxf5 exf5 42. Bd5 Kd6 43. Bf7 Be6 44. Bxg6 Bd7 45. Bf7 Ke7 46. g6 Kf6 47. d5 1-0

[Event "Vlissingen HZ op 24th"]
[Site "Vlissingen"]
[Date "2022.08.10"]
[Round "6"]
[White "Boulahfa, Hicham"]
[Black "Welten, Hans"]
[Result "1-0"]
[ECO "B26"]
[WhiteElo "2032"]
[BlackElo "1844"]
[PlyCount "135"]
[EventDate "2022.08.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 209 Extra"]
[Source "ChessBase"]
[SourceDate "2022.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.09.30"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. Nge2 d6 4. g3 g6 5. Bg2 Bg7 6. 0-0 e6 7. d3 Nge7 8. Be3 0-0 9. Qd2 Re8 10. Rad1 Nd4 11. f4 Rb8 12. Rf2 b6 13. Rdf1 f5 14. Nc1 a6 15. Nd1 Bb7 16. c3 Nb5 17. Re2 Qd7 18. Rfe1 Nc7 19. Bf2 Kh8 20. d4 c4 21. d5 fxe4 22. dxe6 Nxe6 23. Bxe4 Nc5 24. Bxb7 Rxb7 25. Bd4 d5 26. Bxg7+ Kxg7 27. Ne3 Ne4 28. Qd4+ Kf7 29. Nxd5 Qxd5 30. Qxd5+ Nxd5 31. Rxe4 Rxe4 32. Rxe4 b5 33. Ne2 Nf6 34. Re5 Ng4 35. Re4 Nf6 36. Rd4 Re7 37. Rd2 Ne4 38. Rc2 Nc5 39. Kf1 Nd3 40. Rd2 Re3 41. Kg2 Kf6 42. b3 g5 43. fxg5+ Kxg5 44. bxc4 bxc4 45. Nd4 h5 46. Re2 Rxe2+ 47. Nxe2 h4 48. gxh4+ Kg4 49. h5 Kxh5 50. Kf3 Kg5 51. Ke4 Kf6 52. Kd5 Ne5 53. Nd4 Ng4 54. h3 Ne3+ 55. Kc5 Kg5 56. Nc6 Kh4 57. a4 Kxh3 58. a5 Kg4 59. Nb8 Kf5 60. Nxa6 Ke6 61. Nb8 Nd5 62. a6 Nc7 63. a7 Ke5 64. Kc6 Na8 65. Kb7 Ke4 66. Nc6 Kd3 67. Kxa8 Kxc3 68. Ne5 1-0

[Event "Vlissingen HZ op 24th"]
[Site "Vlissingen"]
[Date "2022.08.09"]
[Round "5"]
[White "Welten, Hans"]
[Black "Emans, Job"]
[Result "1/2-1/2"]
[ECO "E29"]
[WhiteElo "1844"]
[BlackElo "2035"]
[PlyCount "53"]
[EventDate "2022.08.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 209 Extra"]
[Source "ChessBase"]
[SourceDate "2022.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. e3 0-0 7. Bd3 Nc6 8. Ne2 d6 9. 0-0 b6 10. e4 e5 11. d5 Na5 12. Ng3 h6 13. Rb1 Ba6 14. Qe2 Qd7 15. Nf5 Kh7 16. f4 Rad8 17. fxe5 dxe5 18. Nxh6 Ng8 19. Nxg8 Kxg8 20. Qh5 Bxc4 21. Rf3 f6 22. Bxc4 Nxc4 23. Rh3 Nd6 24. Bd2 Qa4 25. Re1 Qc2 26. Bc1 Rfe8 27. Qh7+ 1/2-1/2

[Event "Vlissingen HZ op 24th"]
[Site "Vlissingen"]
[Date "2022.08.07"]
[Round "3"]
[White "Welten, Hans"]
[Black "Gijsen, William"]
[Result "0-1"]
[ECO "D31"]
[WhiteElo "1844"]
[BlackElo "2079"]
[PlyCount "76"]
[EventDate "2022.08.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 209 Extra"]
[Source "ChessBase"]
[SourceDate "2022.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.09.30"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 e6 4. Nc3 dxc4 5. a4 Bb4 6. e4 Nf6 7. e5 Nd5 8. Bd2 Bxc3 9. bxc3 b5 10. Be2 Nd7 11. Qc2 h6 12. 0-0 N7b6 13. a5 Nd7 14. Bc1 Qc7 15. Nd2 0-0 16. Ba3 c5 17. Ne4 b4 18. Bb2 cxd4 19. cxd4 c3 20. Bc1 Rb8 21. Qb3 Bb7 22. Nd6 Ne7 23. Bd3 Bd5 24. Bc4 Bxc4 25. Nxc4 Nf5 26. Rd1 Rfc8 27. Ne3 Nxe3 28. Bxe3 Qc4 29. Qa4 Rc7 30. d5 exd5 31. Rd4 Qb5 32. Qd1 c2 33. Qh5 Rc6 34. Rf4 Rf8 35. h3 b3 36. Rf6 Nxf6 37. exf6 Rxf6 38. Bd4 b2 0-1

[Event "Vlissingen HZ op 24th"]
[Site "Vlissingen"]
[Date "2022.08.06"]
[Round "1"]
[White "Pham, Khoi"]
[Black "Welten, Hans"]
[Result "1-0"]
[ECO "B76"]
[WhiteElo "2376"]
[BlackElo "1844"]
[PlyCount "79"]
[EventDate "2022.08.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 209 Extra"]
[Source "ChessBase"]
[SourceDate "2022.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.09.30"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 Nc6 8. Qd2 0-0 9. 0-0-0 d5 10. exd5 Nxd5 11. Nxc6 bxc6 12. Bd4 e5 13. Bc5 Be6 14. Ne4 Re8 15. h4 h5 16. g4 Nf4 17. Qe1 Qb8 18. gxh5 Nxh5 19. b3 a5 20. Nd6 Rd8 21. Bc4 Bxc4 22. Nxc4 Rxd1+ 23. Qxd1 Qb5 24. Ba3 a4 25. Bb2 axb3 26. axb3 Nf4 27. Re1 Bh6 28. Rxe5 Nd3+ 29. Kb1 Nxe5 30. Nxe5 Qa5 31. c4 Qa2+ 32. Kc2 Rb8 33. Qd3 Bg7 34. f4 Bf6 35. Qe3 Rd8 36. h5 gxh5 37. Qg1+ Kh7 38. Qh2 h4 39. Qe2 Bxe5 40. Qxe5 1-0

[Event "Vlissingen HZ op 23rd"]
[Site "Vlissingen"]
[Date "2019.08.08"]
[Round "7"]
[White "Braun, Eric"]
[Black "Welten, Hans"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "1602"]
[BlackElo "1887"]
[PlyCount "81"]
[EventDate "2019.08.03"]
[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. Nf3 Nf6 3. Bf4 e6 4. e3 c6 5. c3 Bd6 6. Bg3 Qe7 7. Nbd2 Nbd7 8. Ne5 0-0 9. Bd3 Rd8 10. f4 Nf8 11. Qf3 Bd7 12. h4 Be8 13. h5 b5 14. Bh4 Rdb8 15. 0-0 Qd8 16. b4 a5 17. a3 Ra6 18. Nb3 axb4 19. cxb4 Rba8 20. Na5 Be7 21. Rfc1 Qd6 22. Rc5 Rb6 23. g4 Raa6 24. Kh1 Qd8 25. Bxf6 Bxf6 26. g5 Be7 27. Rcc1 f6 28. gxf6 Bxf6 29. Qg4 Qe7 30. Rg1 Bxe5 31. fxe5 Qf7 32. h6 g6 33. Raf1 Qe7 34. Rf6 Ra7 35. Rgf1 Nd7 36. Rxe6 Qd8 37. Bxg6 Bxg6 38. Rxg6+ Kh8 39. Nxc6 Rxc6 40. Rxc6 Rxa3 41. Qg7# 1-0

[Event "Vlissingen HZ op 23rd"]
[Site "Vlissingen"]
[Date "2019.08.06"]
[Round "5"]
[White "Brandstaetter, Mark Pieter"]
[Black "Welten, Hans"]
[Result "1-0"]
[ECO "B40"]
[WhiteElo "1652"]
[BlackElo "1887"]
[PlyCount "113"]
[EventDate "2019.08.03"]
[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. b3 e6 3. Bb2 Nf6 4. e5 Nd5 5. Nc3 Nxc3 6. Bxc3 Nc6 7. Nf3 b6 8. Bd3 Bb7 9. Qe2 Be7 10. a4 a6 11. 0-0-0 Qc7 12. Kb1 h6 13. Kb2 Nb4 14. Bxb4 cxb4 15. h4 d5 16. exd6 Bf6+ 17. Kb1 Qxd6 18. Be4 Bxe4 19. Qxe4 0-0 20. g4 g6 21. g5 Bg7 22. gxh6 Bxh6 23. h5 Qf4 24. Qxf4 Bxf4 25. Rdg1 Kg7 26. Rg4 e5 27. Rhg1 g5 28. Nxg5 Bxg5 29. Rxg5+ Kf6 30. R5g4 a5 31. Rc4 Rh8 32. h6 Kf5 33. Rc6 Rae8 34. Rxb6 Re6 35. Rxe6 Kxe6 36. Rh1 Kf5 37. Kc1 Kf4 38. Kd1 Kf3 39. Rh2 Rh7 40. Ke1 f5 41. c3 e4 42. cxb4 axb4 43. a5 f4 44. a6 Rc7 45. Kd1 Rh7 46. a7 Rxa7 47. h7 Ra1+ 48. Kc2 Ra2+ 49. Kb1 Ra8 50. h8Q Rxh8 51. Rxh8 Kxf2 52. Rb8 e3 53. dxe3 fxe3 54. Rxb4 e2 55. Re4 e1Q+ 56. Rxe1 Kxe1 57. b4 1-0

[Event "Vlissingen HZ op 23rd"]
[Site "Vlissingen"]
[Date "2019.08.05"]
[Round "4"]
[White "Welten, Hans"]
[Black "Schlaebitz, Joel"]
[Result "1/2-1/2"]
[ECO "E85"]
[WhiteElo "1887"]
[BlackElo "1670"]
[PlyCount "56"]
[EventDate "2019.08.03"]
[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 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 0-0 6. Be3 e5 7. Nge2 Nc6 8. d5 Ne7 9. Qd2 Nd7 10. Bh6 f5 11. Bxg7 Kxg7 12. h4 f4 13. Ng1 a5 14. Bd3 Nc5 15. Bc2 Ng8 16. Qf2 Nf6 17. Nge2 Nh5 18. 0-0-0 Qf6 19. Kb1 b6 20. Rdg1 Ba6 21. b3 Rab8 22. a4 Rf7 23. Rf1 Rbf8 24. Rh2 h6 25. Rh3 Bc8 26. Rh2 Ba6 27. Rh3 Bc8 28. Rh2 Ba6 1/2-1/2

[Event "Vlissingen HZ op 23rd"]
[Site "Vlissingen"]
[Date "2019.08.04"]
[Round "3"]
[White "Silkaitis, Laimis"]
[Black "Welten, Hans"]
[Result "1/2-1/2"]
[ECO "E09"]
[WhiteElo "1678"]
[BlackElo "1887"]
[PlyCount "91"]
[EventDate "2019.08.03"]
[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 Nf6 2. c4 e6 3. g3 d5 4. Nf3 c6 5. Bg2 Be7 6. 0-0 0-0 7. Qc2 Nbd7 8. Nbd2 Rb8 9. e4 dxe4 10. Nxe4 Nxe4 11. Qxe4 Nf6 12. Qe2 Bd6 13. b3 Qe7 14. Bb2 Ba3 15. Bc3 Bb4 16. Bxb4 Qxb4 17. Ne5 Bd7 18. Rfd1 Rfd8 19. Qc2 Be8 20. Qb2 Qe7 21. c5 Bd7 22. a3 Rdc8 23. b4 h6 24. Nc4 Ne8 25. Qe2 Qd8 26. Rab1 Qe7 27. Rd2 Rd8 28. Rbd1 Nf6 29. Qe5 Be8 30. Nd6 Nd5 31. Re1 Qf6 32. Qe2 Bd7 33. Ne4 Qe7 34. Qc4 Be8 35. Nd6 Qf6 36. Rde2 Bd7 37. Ne4 Qe7 38. f4 Qf8 39. Nd6 Nf6 40. Qc2 Kh8 41. Qc3 Kg8 42. Bh3 Nd5 43. Qf3 Ne7 44. Qd3 Kh8 45. Qf3 Kg8 46. Qd3 1/2-1/2

[Event "Vlissingen HZ op 23rd"]
[Site "Vlissingen"]
[Date "2019.08.04"]
[Round "2"]
[White "Welten, Hans"]
[Black "Jonkheer, Alex"]
[Result "1-0"]
[ECO "D37"]
[WhiteElo "1887"]
[BlackElo "1660"]
[PlyCount "93"]
[EventDate "2019.08.03"]
[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. Nc3 Nbd7 5. h3 e6 6. Bf4 Be7 7. e3 a6 8. Qc2 dxc4 9. Bxc4 b5 10. Bd3 Bb7 11. 0-0 c5 12. dxc5 Nxc5 13. Be2 0-0 14. Rfd1 Qb6 15. b4 Nce4 16. Nxe4 Bxe4 17. Qb2 Nd5 18. Be5 f6 19. Bd4 Qb7 20. Nd2 Bg6 21. Bf3 e5 22. Bc5 Bxc5 23. Ne4 Bf7 24. Nxc5 Qc6 25. Rac1 Rfe8 26. Be4 f5 27. Bxf5 Nf6 28. Ne4 Bc4 29. Nd6 Re7 30. Nxc4 bxc4 31. Qc3 g6 32. Bd3 Kg7 33. Qxc4 Qxc4 34. Bxc4 Rc7 35. Be2 Rb7 36. a3 a5 37. b5 Rab8 38. a4 e4 39. Rc6 Nd7 40. Rdc1 Nb6 41. Bd1 Nd5 42. Bb3 Nb4 43. Rc7+ Kh6 44. Rxb7 Rxb7 45. Rc8 Nd3 46. Bd5 Re7 47. b6 1-0

[Event "Vlissingen HZ op 22nd"]
[Site "Vlissingen"]
[Date "2018.08.11"]
[Round "9"]
[White "Rosmuller, Anton J"]
[Black "Welten, Hans"]
[Result "1-0"]
[ECO "A47"]
[WhiteElo "2069"]
[BlackElo "1911"]
[PlyCount "69"]
[EventDate "2018.08.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 185 Extra"]
[Source "ChessBase"]
[SourceDate "2018.07.29"]
[SourceVersion "1"]
[SourceVersionDate "2018.07.29"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. g3 b6 4. Bg2 Bb7 5. 0-0 Be7 6. b3 0-0 7. Bb2 c5 8. e3 d5 9. Ne5 Nbd7 10. Nd3 Qc7 11. Re1 Rac8 12. c3 Rfd8 13. Nd2 Qb8 14. f4 Ne4 15. Nxe4 dxe4 16. Nf2 f5 17. Qe2 Nf6 18. c4 Rc7 19. Red1 Qc8 20. g4 Nd7 21. Kh1 Nf8 22. gxf5 exf5 23. d5 Rcd7 24. Bh3 Rd6 25. Rg1 Rg6 26. Nxe4 Re8 27. Ng3 Rxg3 28. Rxg3 Ng6 29. Qh5 Rf8 30. Rag1 Qe6 31. Bg2 Qf7 32. Bf3 Bf6 33. Rh3 h6 34. Bxf6 Qxf6 35. Qxg6 1-0

[Event "Vlissingen HZ op 22nd"]
[Site "Vlissingen"]
[Date "2018.08.10"]
[Round "8"]
[White "Welten, Hans"]
[Black "Gutkind, Kedem"]
[Result "1/2-1/2"]
[ECO "E32"]
[WhiteElo "1911"]
[BlackElo "2099"]
[PlyCount "84"]
[EventDate "2018.08.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 185 Extra"]
[Source "ChessBase"]
[SourceDate "2018.07.29"]
[SourceVersion "1"]
[SourceVersionDate "2018.07.29"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 b6 5. Nf3 Bb7 6. e3 Ne4 7. Be2 0-0 8. 0-0 f5 9. Nd1 Bd6 10. b3 g5 11. Bb2 g4 12. Ne5 Nc6 13. f4 gxf3 14. Bxf3 Bxe5 15. dxe5 Ng5 16. Qe2 Nxf3+ 17. gxf3 Kh8 18. Kh1 Rg8 19. Nf2 Qe8 20. Nd3 Ne7 21. Nf4 Qf7 22. Rg1 Ng6 23. Nxg6+ Rxg6 24. Rxg6 Qxg6 25. Rg1 Qh5 26. Rg3 Rg8 27. Kg2 Rg6 28. Ba3 Kg8 29. Be7 Rxg3+ 30. hxg3 Qe8 31. Bf6 a5 32. Qd1 Bc6 33. Kf2 Qh5 34. Kg2 Qg4 35. Qe2 Kf7 36. Qd1 h5 37. Bh4 Qg8 38. Qd2 Qa8 39. e4 Qh8 40. Qg5 fxe4 41. Qe7+ Kg6 42. Qg5+ Kf7 1/2-1/2

[Event "Vlissingen HZ op 22nd"]
[Site "Vlissingen"]
[Date "2018.08.05"]
[Round "3"]
[White "Van Baar, Esper"]
[Black "Welten, Hans"]
[Result "1-0"]
[ECO "B52"]
[WhiteElo "2241"]
[BlackElo "1911"]
[PlyCount "69"]
[EventDate "2018.08.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 185 Extra"]
[Source "ChessBase"]
[SourceDate "2018.07.29"]
[SourceVersion "1"]
[SourceVersionDate "2018.07.29"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. 0-0 Nc6 6. c3 e6 7. d4 d5 8. exd5 Qxd5 9. Be3 c4 10. b3 Nf6 11. Nbd2 cxb3 12. axb3 Be7 13. Nc4 0-0 14. Re1 Rfc8 15. Bc1 Qd8 16. Bb2 b5 17. Nce5 Qb6 18. Qe2 Rab8 19. Nxf7 Nxd4 20. cxd4 Kxf7 21. Ng5+ Kg8 22. Nxe6 Bb4 23. Red1 Re8 24. d5 Nxd5 25. Qg4 g6 26. Ng7 Bc3 27. Nxe8 Bxb2 28. Rab1 Rxe8 29. Rxb2 Qf6 30. Re2 Rxe2 31. Qxe2 Nc3 32. Qe8+ Kg7 33. Rd7+ Kh6 34. Qe3+ g5 35. Qh3+ 1-0

[Event "Vlissingen HZ op 22nd"]
[Site "Vlissingen"]
[Date "2018.08.05"]
[Round "2"]
[White "Welten, Hans"]
[Black "Elgersma, Onno"]
[Result "0-1"]
[ECO "E53"]
[WhiteElo "1911"]
[BlackElo "2171"]
[PlyCount "94"]
[EventDate "2018.08.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 185 Extra"]
[Source "ChessBase"]
[SourceDate "2018.07.29"]
[SourceVersion "1"]
[SourceVersionDate "2018.07.29"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 d5 6. e3 c5 7. Qc2 0-0 8. Bd3 dxc4 9. Bxc4 Qc7 10. Nf3 b6 11. 0-0 cxd4 12. cxd4 Ba6 13. Bd3 Qxc2 14. Bxc2 Bxf1 15. Kxf1 Nc6 16. Bd2 Rfd8 17. Ke2 Rac8 18. Bd3 Ne7 19. h3 Rc7 20. e4 Ng6 21. g3 Rcd7 22. Ke3 Ne8 23. Bb5 Rc7 24. Bd3 Nd6 25. Bb4 Nc4+ 26. Ke2 Nb2 27. Ba6 Rc2+ 28. Kf1 Rc7 29. Ke2 Na4 30. Kd3 Nc5+ 31. Bxc5 bxc5 32. Rc1 Rdd7 33. Bb5 cxd4 34. Rxc7 Rxc7 35. Kxd4 Kf8 36. a4 f6 37. h4 Ke7 38. h5 Nf8 39. g4 e5+ 40. Kd3 Ne6 41. Nh4 Nf4+ 42. Kd2 g6 43. h6 Rc8 44. Nf3 Nh3 45. Ke1 Rc3 46. Nh4 Nf4 47. f3 Rc1+ 0-1

[Event "Vlissingen HZ op 16th"]
[Site "Vlissingen"]
[Date "2012.08.05"]
[Round "3"]
[White "Roos, Adrian"]
[Black "Welten, Hans"]
[Result "1-0"]
[ECO "E08"]
[WhiteElo "2190"]
[BlackElo "1911"]
[PlyCount "105"]
[EventDate "2012.08.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 149 Extra"]
[Source "ChessBase"]
[SourceDate "2012.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2012.08.24"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. g3 d5 4. Nf3 Be7 5. Bg2 0-0 6. 0-0 c6 7. Qc2 Nbd7 8. Rd1 Ne4 9. b3 Ndf6 10. Ne5 Nd6 11. Bb2 Bd7 12. Nd2 Rc8 13. c5 Nde8 14. f3 Nc7 15. b4 Nce8 16. Bc3 Nc7 17. a4 Qe8 18. e4 h6 19. Nd3 Bd8 20. Re1 Be7 21. Re2 Qd8 22. Rf1 Re8 23. e5 Nh7 24. f4 Rb8 25. Nb3 Qc8 26. Ref2 Rf8 27. Re1 Re8 28. Bf1 f5 29. exf6 Bxf6 30. Ne5 Bxe5 31. dxe5 Nf8 32. Nd4 Re7 33. Bd3 Qe8 34. Qe2 a6 35. Bd2 Ra8 36. g4 g6 37. Rg2 Kh8 38. Rf1 Rd8 39. Be1 Rf7 40. Bh4 Rb8 41. Qc2 Rh7 42. Bf6+ Kg8 43. f5 g5 44. h4 gxh4 45. fxe6 Bxe6 46. g5 h3 47. Rg3 h5 48. Bxh7+ Nxh7 49. g6 Nxf6 50. exf6 Qd7 51. f7+ Kg7 52. Qe2 Bg4 53. Qe5+ 1-0

[Event "Vlissingen HZ op 16th"]
[Site "Vlissingen"]
[Date "2012.08.04"]
[Round "1"]
[White "Haslinger, Stewart"]
[Black "Welten, Hans"]
[Result "1-0"]
[ECO "B76"]
[WhiteElo "2524"]
[BlackElo "1911"]
[PlyCount "53"]
[EventDate "2012.08.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 149 Extra"]
[Source "ChessBase"]
[SourceDate "2012.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2012.08.24"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 0-0 8. Qd2 Nc6 9. 0-0-0 d5 10. exd5 Nxd5 11. Nxc6 bxc6 12. Bd4 e5 13. Bc5 Re8 14. Ne4 Qc7 15. h4 Be6 16. h5 Red8 17. hxg6 fxg6 18. Rxh7 Nf4 19. Rxg7+ Kxg7 20. Bd6 Rxd6 21. Qxd6 Qa5 22. Qe7+ Kh6 23. Bc4 Bxc4 24. Rh1+ Nh5 25. Rxh5+ gxh5 26. Qg5+ Kh7 27. Nf6+ 1-0

[Event "Vlissingen HZ op 12th"]
[Site "Vlissingen"]
[Date "2008.08.03"]
[Round "3"]
[White "Welten, Hans"]
[Black "Schut, Lisa"]
[Result "1/2-1/2"]
[ECO "D97"]
[WhiteElo "1910"]
[BlackElo "2135"]
[PlyCount "86"]
[EventDate "2008.08.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 125 Extra"]
[Source "ChessBase"]
[SourceDate "2008.09.01"]
[SourceVersion "1"]
[SourceVersionDate "2008.09.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 0-0 7. e4 a6 8. Be3 b5 9. Qb3 Nc6 10. Bd3 Ng4 11. Ne2 Nxe3 12. fxe3 Na5 13. Qc3 Nb7 14. Qc6 Ra7 15. Rc1 Nd6 16. 0-0 Bd7 17. Qc5 Rb7 18. Nf4 c6 19. Ne5 Qa5 20. Nxd7 Rxd7 21. Qxc6 Rdd8 22. Qc3 b4 23. Qc5 Nb5 24. Bc4 b3 25. Bxb5 axb5 26. axb3 Qd2 27. Qc3 Rxd4 28. Qxd2 Rxd2 29. Rf2 Rfd8 30. Nd5 Rxf2 31. Kxf2 e6 32. Rc8 Rxc8 33. Ne7+ Kf8 34. Nxc8 Bxb2 35. Na7 b4 36. Nc6 Bc3 37. Ke2 Ke8 38. Kd3 Kd7 39. Nd4 f5 40. exf5 gxf5 41. Nc2 Kd6 42. Kc4 Bd2 43. Kd3 Bc3 1/2-1/2

[Event "Vlissingen HZ op 12th"]
[Site "Vlissingen"]
[Date "2008.08.02"]
[Round "1"]
[White "Welten, Hans"]
[Black "Di Berardino, Diego Rafael"]
[Result "0-1"]
[ECO "E84"]
[WhiteElo "1910"]
[BlackElo "2471"]
[PlyCount "54"]
[EventDate "2008.08.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 125 Extra"]
[Source "ChessBase"]
[SourceDate "2008.09.01"]
[SourceVersion "1"]
[SourceVersionDate "2008.09.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 0-0 6. Be3 Nc6 7. Qd2 a6 8. Nge2 Rb8 9. Nc1 e5 10. d5 Nd4 11. N1e2 Nxe2 12. Bxe2 Nh5 13. g4 Nf4 14. Bxf4 exf4 15. Qxf4 c5 16. h4 b5 17. Qd2 bxc4 18. Bxc4 f5 19. gxf5 gxf5 20. h5 fxe4 21. h6 Be5 22. Qg2+ Kh8 23. fxe4 Rg8 24. Qd2 Bg4 25. Be2 Qf6 26. Rf1 Bg3+ 27. Kd1 Qxf1+ 0-1

[Event "Vlissingen HZ op 11th"]
[Site "Vlissingen"]
[Date "2007.08.04"]
[Round "1"]
[White "Welten, Hans"]
[Black "Schuurman, Petra"]
[Result "0-1"]
[ECO "E51"]
[BlackElo "2290"]
[PlyCount "64"]
[EventDate "2007.08.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 119 Extra"]
[Source "ChessBase"]
[SourceDate "2007.09.04"]
[SourceVersion "1"]
[SourceVersionDate "2007.09.04"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 d5 6. e3 c6 7. Bd3 b6 8. Nf3 0-0 9. 0-0 Ba6 10. cxd5 cxd5 11. Bxa6 Nxa6 12. Qd3 Nc7 13. c4 Rc8 14. Bd2 Qd7 15. Rfc1 Qa4 16. cxd5 exd5 17. Bb4 Rfe8 18. Qf5 Ne6 19. Rxc8 Rxc8 20. Be7 Qc6 21. h4 Ne4 22. Ne5 Qe8 23. Bb4 g6 24. Qg4 Rc2 25. f4 Ng7 26. Rf1 Nf5 27. Re1 a5 28. Qd1 Qc8 29. g4 Nxe3 30. Rxe3 Rc1 31. Qxc1 Qxc1+ 32. Re1 Qxf4 0-1

[Event "Vlissingen HZ op 10th"]
[Site "Vlissingen"]
[Date "2006.08.11"]
[Round "8"]
[White "Vedder, Richard"]
[Black "Welten, Hans"]
[Result "1-0"]
[ECO "B53"]
[WhiteElo "2229"]
[PlyCount "69"]
[EventDate "2006.08.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 113 Extra"]
[Source "ChessBase"]
[SourceDate "2006.09.14"]
[SourceVersion "1"]
[SourceVersionDate "2006.09.14"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Nc3 Nc6 4. Bb5 Bd7 5. Bxc6 Bxc6 6. d4 cxd4 7. Qxd4 e5 8. Qd3 Nf6 9. Bg5 Be7 10. 0-0-0 h6 11. Bxf6 gxf6 12. Nd5 Bxd5 13. Qxd5 Qb6 14. Nh4 Qc6 15. Nf5 Rc8 16. Qd3 Bf8 17. Rd2 Rg8 18. g3 Rg5 19. Rhd1 Rc7 20. f4 Rg6 21. h4 Rd7 22. h5 Rg8 23. Qe3 b6 24. Rd3 Qb7 25. Qd2 Qa6 26. a3 b5 27. Rd5 Qc6 28. fxe5 fxe5 29. Qe2 Qc4 30. R1d3 Qa2 31. Rc3 Qa1+ 32. Kd2 Qxb2 33. Rxb5 Qa2 34. Rb8+ Rd8 35. Qb5# 1-0

[Event "Vlissingen HZ op 10th"]
[Site "Vlissingen"]
[Date "2006.08.05"]
[Round "1"]
[White "Floor, Dirk"]
[Black "Welten, Hans"]
[Result "1-0"]
[ECO "A58"]
[WhiteElo "2219"]
[PlyCount "71"]
[EventDate "2006.08.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 113 Extra"]
[Source "ChessBase"]
[SourceDate "2006.09.14"]
[SourceVersion "1"]
[SourceVersionDate "2006.09.14"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6 Bxa6 6. Nc3 g6 7. Nf3 d6 8. g3 Bg7 9. Bg2 0-0 10. 0-0 Qa5 11. h3 Nfd7 12. Bd2 Ne5 13. Nxe5 Bxe5 14. Re1 Nd7 15. a4 Qb6 16. a5 Qc7 17. Bg5 Rfb8 18. Qc2 Qd8 19. Ra4 Rb4 20. Rea1 Rab8 21. R1a2 Bc4 22. a6 Rxa4 23. Qxa4 Bxa2 24. Qxa2 Kg7 25. Bf1 Bf6 26. Bxf6+ Kxf6 27. e4 Qb6 28. Kg2 Ra8 29. Qa4 Qa7 30. Qa1 e5 31. dxe6 Kxe6 32. Bc4+ Ke7 33. Nd5+ Kf8 34. b4 Kg8 35. Ne7+ Kf8 36. Nc6 1-0

[Event "Vlissingen HZ op 09th"]
[Site "Vlissingen"]
[Date "2005.08.06"]
[Round "1"]
[White "Welten, Hans"]
[Black "Peek, Maurice"]
[Result "0-1"]
[ECO "E38"]
[BlackElo "2366"]
[PlyCount "106"]
[EventDate "2005.08.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 107 Extra"]
[Source "ChessBase"]
[SourceDate "2005.09.01"]
[SourceVersion "1"]
[SourceVersionDate "2005.09.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 0-0 5. e3 c5 6. Nf3 b6 7. Bd3 Bb7 8. a3 Bxc3+ 9. bxc3 d6 10. e4 cxd4 11. cxd4 Nbd7 12. 0-0 e5 13. Bb2 Re8 14. Rfe1 Rc8 15. a4 Qc7 16. Rac1 Qb8 17. Qb1 Qa8 18. d5 Nc5 19. Qc2 Rc7 20. Nd2 Nfd7 21. Ba3 Nxd3 22. Qxd3 Nc5 23. Bxc5 Rxc5 24. Re3 Ba6 25. Qa3 Qb8 26. Rh3 Qc7 27. Rhc3 Qe7 28. Nf3 Rec8 29. Qb4 h6 30. Nd2 Rf8 31. Qb1 Qg5 32. Nf3 Qg4 33. h3 Qd7 34. Qb4 f5 35. exf5 Qxf5 36. Qb2 Bc8 37. Nh4 Qf7 38. Nf3 Bd7 39. Qe2 Ra5 40. Ra3 Rc8 41. Rca1 Qg6 42. Kh2 Qh5 43. Qd3 Rf8 44. Qe3 Qf5 45. R1a2 Rc5 46. Rc3 Qf4+ 47. Kg1 Rxc4 48. Rxc4 Qxc4 49. Qa3 Qxd5 50. Rd2 Rxf3 51. Qxf3 Qxd2 52. Qa8+ Kf7 53. Qf3+ Ke7 0-1

[Event "Vlissingen HZ op 06th"]
[Site "Vlissingen"]
[Date "2002.08.11"]
[Round "9"]
[White "Welten, Hans"]
[Black "Duijker, Rick"]
[Result "1/2-1/2"]
[ECO "B24"]
[PlyCount "55"]
[EventDate "2002.08.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 089 Extra"]
[Source "ChessBase"]
[SourceDate "2002.09.10"]
[SourceVersion "2"]
[SourceVersionDate "2002.09.10"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. g3 e6 4. Bg2 Nf6 5. d3 d5 6. exd5 exd5 7. Nge2 Be7 8. 0-0 0-0 9. Nf4 d4 10. Ncd5 Nxd5 11. Nxd5 Be6 12. Nxe7+ Qxe7 13. Re1 Qd7 14. Bf4 Bd5 15. Qd2 Rfe8 16. a3 f6 17. h4 Rxe1+ 18. Rxe1 Bxg2 19. Kxg2 Re8 20. Rxe8+ Qxe8 21. Qd1 Nd8 22. Qf3 Qc6 23. Bb8 a6 24. Qxc6 bxc6 25. g4 g6 26. Kf3 Kf7 27. Ke4 Ke6 28. Bc7 1/2-1/2

[Event "Vlissingen HZ op 06th"]
[Site "Vlissingen"]
[Date "2002.08.04"]
[Round "1"]
[White "Welten, Hans"]
[Black "Duesterwald, Marc"]
[Result "0-1"]
[ECO "B25"]
[BlackElo "2225"]
[PlyCount "80"]
[EventDate "2002.08.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 089 Extra"]
[Source "ChessBase"]
[SourceDate "2002.09.10"]
[SourceVersion "2"]
[SourceVersionDate "2002.09.10"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 d6 3. g3 Nf6 4. Bg2 g6 5. d3 Bg7 6. f4 0-0 7. Nf3 Nc6 8. 0-0 Rb8 9. Rb1 b5 10. a3 Nd4 11. Ne2 Nxf3+ 12. Bxf3 Bh3 13. Bg2 Bxg2 14. Kxg2 a5 15. Bd2 a4 16. Qe1 Qc8 17. Ng1 b4 18. Nf3 bxa3 19. bxa3 Qe6 20. Qc1 Nd7 21. c4 f5 22. Ng5 Qf6 23. Qc2 h6 24. Nf3 fxe4 25. dxe4 Rb2 26. Rxb2 Qxb2 27. Qd3 Rb8 28. Qd5+ Kh7 29. f5 g5 30. f6 Nxf6 31. Qf5+ Kh8 32. Rf2 Qb1 33. Nxg5 hxg5 34. Qh3+ Nh7 35. Qe6 Rf8 36. Rxf8+ Nxf8 37. Qh3+ Kg8 38. Qf5 Qc2 39. Qxg5 Qxe4+ 40. Kg1 Ne6 0-1

[Event "Vlissingen HZ op 05th"]
[Site "Vlissingen"]
[Date "2001.08.04"]
[Round "9"]
[White "Welten, Hans"]
[Black "Kluger, Carsten"]
[Result "0-1"]
[ECO "B06"]
[BlackElo "2130"]
[PlyCount "104"]
[EventDate "2001.07.28"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 083 Extra"]
[Source "ChessBase"]
[SourceDate "2001.09.11"]
[SourceVersion "1"]
[SourceVersionDate "2001.09.11"]
[SourceQuality "1"]

1. d4 g6 2. e4 Bg7 3. f4 d5 4. e5 h5 5. Nf3 Nh6 6. Bd3 Bf5 7. c3 e6 8. Na3 c6 9. Nc2 Bxd3 10. Qxd3 Na6 11. Ne3 Nc7 12. Bd2 Nf5 13. Nxf5 exf5 14. 0-0 Ne6 15. a4 Qd7 16. b4 Bf8 17. a5 h4 18. Be3 Be7 19. Bd2 a6 20. Rae1 0-0-0 21. Re2 Rdg8 22. Kh1 Rh5 23. Ref2 Bf8 24. Qc2 Bh6 25. Qd3 Bxf4 26. Bxf4 Nxf4 27. Qd2 Ne6 28. Ne1 f4 29. Nd3 g5 30. Nc5 Nxc5 31. bxc5 Qf5 32. Qb2 h3 33. gxh3 Kb8 34. Rb1 Qd7 35. Qb6 Ka8 36. Rg1 Rxh3 37. Rgg2 f3 38. Rg1 g4 39. Rg3 Rxg3 40. hxg3 Qf5 41. Rb2 Rb8 42. Kg1 Qg5 43. Qb4 Qh6 44. Kf2 Qh2+ 45. Kf1 Qxg3 46. c4 Qh3+ 47. Ke1 Qg3+ 48. Kf1 Qf4 49. cxd5 g3 50. Qe1 g2+ 51. Kg1 Qxd4+ 52. Qf2 Qd1+ 0-1

[Event "Vlissingen HZ op 05th"]
[Site "Vlissingen"]
[Date "2001.08.01"]
[Round "6"]
[White "Kodentsov, Grigori"]
[Black "Welten, Hans"]
[Result "1-0"]
[ECO "E51"]
[PlyCount "73"]
[EventDate "2001.07.28"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 083 Extra"]
[Source "ChessBase"]
[SourceDate "2001.09.11"]
[SourceVersion "1"]
[SourceVersionDate "2001.09.11"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 0-0 5. Bd3 d5 6. Nf3 c5 7. 0-0 Bxc3 8. bxc3 Nbd7 9. cxd5 exd5 10. Ne5 Re8 11. Nxd7 Bxd7 12. f3 Qc7 13. Bd2 c4 14. Bc2 b5 15. Qe1 Bc6 16. Qf2 a5 17. Rae1 Rab8 18. e4 b4 19. e5 Nd7 20. Qh4 Nf8 21. f4 b3 22. axb3 cxb3 23. Bb1 a4 24. f5 a3 25. f6 a2 26. Bxh7+ Nxh7 27. Qg4 g6 28. Qh4 Kh8 29. Qh6 Rg8 30. Rf3 Bd7 31. e6 Bxe6 32. Bf4 Qd8 33. Rxe6 a1Q+ 34. Kf2 Qf8 35. Qxh7+ Kxh7 36. Rh3+ Qh6 37. Rxh6# 1-0

[Event "Vlissingen HZ op 05th"]
[Site "Vlissingen"]
[Date "2001.07.29"]
[Round "3"]
[White "Welten, Hans"]
[Black "Jonkman, Harmen"]
[Result "0-1"]
[ECO "C45"]
[BlackElo "2468"]
[PlyCount "54"]
[EventDate "2001.07.28"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 083 Extra"]
[Source "ChessBase"]
[SourceDate "2001.09.11"]
[SourceVersion "1"]
[SourceVersionDate "2001.09.11"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Qf6 5. Be3 Bc5 6. c3 Qg6 7. Be2 Qxg2 8. Bf3 Qg6 9. Nd2 Qf6 10. Nc4 Nxd4 11. cxd4 Bb4+ 12. Kf1 d5 13. Ne5 Bd6 14. h4 h6 15. exd5 Ne7 16. Qa4+ Kf8 17. Be4 Nf5 18. Bxf5 Qxf5 19. f4 Qe4 20. Kf2 Qxd5 21. Rhg1 Bf5 22. Nd7+ Bxd7 23. Qxd7 Re8 24. Qg4 g6 25. f5 Re4 26. Qh3 Qxf5+ 27. Qxf5 gxf5 0-1

[Event "Vlissingen HZ op 05th"]
[Site "Vlissingen"]
[Date "2001.07.28"]
[Round "1"]
[White "Psakhis, Lev"]
[Black "Welten, Hans"]
[Result "1-0"]
[ECO "E71"]
[WhiteElo "2566"]
[PlyCount "53"]
[EventDate "2001.07.28"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 083 Extra"]
[Source "ChessBase"]
[SourceDate "2001.09.11"]
[SourceVersion "1"]
[SourceVersionDate "2001.09.11"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 g6 3. e4 d6 4. d4 Bg7 5. h3 0-0 6. Bg5 Nc6 7. d5 Ne5 8. f4 Ned7 9. Bd3 c6 10. Nge2 cxd5 11. cxd5 a5 12. Bc2 Re8 13. 0-0 Qb6+ 14. Kh2 e6 15. dxe6 fxe6 16. f5 exf5 17. exf5 h6 18. Bxf6 Bxf6 19. fxg6 Be5+ 20. Kh1 Nf6 21. g7 Be6 22. Qd3 Kxg7 23. Qg6+ Kf8 24. Rxf6+ Bxf6 25. Qxf6+ Bf7 26. Rf1 Re7 27. Qh8# 1-0

[Event "Vlissingen HZ op 04th"]
[Site "Vlissingen"]
[Date "2000.08.05"]
[Round "9"]
[White "Jonkheer, Alex"]
[Black "Welten, Hans"]
[Result "0-1"]
[ECO "D94"]
[PlyCount "38"]
[EventDate "2000.07.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 077 Extra"]
[Source "ChessBase"]
[SourceDate "2000.09.14"]
[SourceVersion "1"]
[SourceVersionDate "2000.09.14"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. e3 g6 4. Nf3 Bg7 5. Nc3 d5 6. Be2 0-0 7. 0-0 cxd4 8. exd4 Nc6 9. Bf4 Be6 10. Ng5 Bf5 11. g4 Bc8 12. Nb5 a6 13. Nc7 Ra7 14. c5 h6 15. Nf3 Bxg4 16. Ne5 Bxe2 17. Qxe2 Nh5 18. Nxg6 Nxf4 19. Nxe7+ Qxe7 0-1

[Event "Vlissingen HZ op 04th"]
[Site "Vlissingen"]
[Date "2000.08.04"]
[Round "8"]
[White "Welten, Hans"]
[Black "Dieperink, FHJ"]
[Result "1-0"]
[ECO "C45"]
[PlyCount "61"]
[EventDate "2000.07.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 077 Extra"]
[Source "ChessBase"]
[SourceDate "2000.09.14"]
[SourceVersion "1"]
[SourceVersionDate "2000.09.14"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Be3 Qf6 6. c3 Nge7 7. Nc2 Bb6 8. Be2 0-0 9. 0-0 d6 10. Nba3 Be6 11. Bxb6 axb6 12. Ne3 Rfd8 13. f4 d5 14. e5 Qh6 15. Nac2 g6 16. Qd3 d4 17. Nxd4 Nxd4 18. cxd4 c5 19. d5 Nxd5 20. Nxd5 Rxd5 21. Qb5 Rd2 22. Bf3 Qxf4 23. Bxb7 Qd4+ 24. Kh1 Bd5 25. Bxa8 Rxg2 26. Bxd5 Rxb2 27. Qe8+ Kg7 28. Qxf7+ Kh6 29. Qf8+ Kg5 30. Rg1+ Kh4 31. Qh6# 1-0

[Event "Vlissingen HZ op 04th"]
[Site "Vlissingen"]
[Date "2000.08.03"]
[Round "7"]
[White "Rikumahu, F."]
[Black "Welten, Hans"]
[Result "1/2-1/2"]
[ECO "E12"]
[PlyCount "121"]
[EventDate "2000.07.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 077 Extra"]
[Source "ChessBase"]
[SourceDate "2000.09.14"]
[SourceVersion "1"]
[SourceVersionDate "2000.09.14"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. c4 b6 4. Nc3 Bb4 5. Bg5 Bb7 6. e3 0-0 7. Bd3 d5 8. 0-0 Nbd7 9. Rc1 Be7 10. Nd2 c5 11. f4 dxc4 12. Nxc4 Nd5 13. Bxe7 Qxe7 14. Nxd5 Bxd5 15. Kh1 cxd4 16. exd4 Nf6 17. a3 Rfd8 18. f5 Bxc4 19. Bxc4 e5 20. d5 e4 21. Re1 Qe5 22. Qe2 Qxf5 23. Rf1 Qe5 24. Rfe1 Rd6 25. Bd3 Qxd5 26. Bxe4 Qxe4 27. Qxe4 Nxe4 28. Rxe4 Rad8 29. Rce1 g6 30. Kg1 Kg7 31. Re7 Rd1 32. Kf2 R8d2+ 33. R7e2 Kf6 34. Rxd1 Rxd1 35. Ke3 Rh1 36. h3 Rd1 37. Rc2 Rd7 38. Rf2+ Ke6 39. Ke4 f5+ 40. Ke3 g5 41. h4 h6 42. hxg5 hxg5 43. Rc2 Ke5 44. Rc3 f4+ 45. Ke2 Kf5 46. Rc8 Kg4 47. Rc3 Re7+ 48. Kf2 Re3 49. Rc2 Rb3 50. Rd2 Kf5 51. Re2 Kf6 52. Ke1 f3 53. Rf2 g4 54. gxf3 Rxf3 55. Rxf3+ gxf3 56. Kf2 Ke5 57. Kxf3 Kd4 58. Ke2 Kc4 59. Kd2 Kb3 60. Kc1 b5 61. Kb1 1/2-1/2

[Event "Vlissingen HZ op 04th"]
[Site "Vlissingen"]
[Date "2000.08.02"]
[Round "6"]
[White "Welten, Hans"]
[Black "De Jager, Jaap"]
[Result "0-1"]
[ECO "B01"]
[BlackElo "2307"]
[PlyCount "119"]
[EventDate "2000.07.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 077 Extra"]
[Source "ChessBase"]
[SourceDate "2000.09.14"]
[SourceVersion "1"]
[SourceVersionDate "2000.09.14"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. exd5 Qxd5 4. c4 Qd8 5. Nc3 Nf6 6. Nf3 Bg4 7. Be2 g6 8. Bg5 Bg7 9. Qd2 0-0 10. 0-0 Nbd7 11. Rfe1 Re8 12. Rad1 Qc7 13. Bf4 Qc8 14. h3 Bxf3 15. Bxf3 e6 16. b4 Nb6 17. Qd3 Qd7 18. a4 Nc8 19. b5 Ne7 20. bxc6 bxc6 21. Re2 Rad8 22. Red2 Qc8 23. Qb1 Nd7 24. Ne4 Qa6 25. Qb3 Nb6 26. Nd6 Rf8 27. c5 Qxa4 28. Qxa4 Nxa4 29. Rc1 Nf5 30. Ra2 Nxc5 31. dxc5 Nd4 32. Bd1 e5 33. Be3 Rd7 34. Bxd4 exd4 35. Be2 Be5 36. Nc4 Bf4 37. Rd1 Bg5 38. Bf3 Bf6 39. Bxc6 Rc7 40. Ra6 Rfc8 41. Na5 Be7 42. Rxd4 Bxc5 43. Rd7 Bb6 44. Rxc7 Rxc7 45. Ba4 Rc1+ 46. Kh2 Bxf2 47. Nc6 Rc3 48. Bb5 Bg3+ 49. Kg1 Rc1+ 50. Bf1 Bd6 51. Kf2 Rc2+ 52. Kf3 Bc5 53. Ke4 Rd2 54. Ra1 Rd7 55. Rb1 Kg7 56. Bc4 h5 57. Rf1 f5+ 58. Ke5 Rd2 59. Rb1 Rd7 60. Rb3 0-1

[Event "Vlissingen HZ op 04th"]
[Site "Vlissingen"]
[Date "2000.08.01"]
[Round "5"]
[White "Visser, Gerrit M"]
[Black "Welten, Hans"]
[Result "1-0"]
[ECO "B79"]
[PlyCount "69"]
[EventDate "2000.07.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 077 Extra"]
[Source "ChessBase"]
[SourceDate "2000.09.14"]
[SourceVersion "1"]
[SourceVersionDate "2000.09.14"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Bc4 Bg7 7. Bb3 0-0 8. f3 Nc6 9. Be3 Bd7 10. Qd2 Qa5 11. 0-0-0 Rfc8 12. h4 h5 13. g4 Ne5 14. gxh5 Nxh5 15. Rdg1 Nc4 16. Qe2 Nxb2 17. Nb1 Bxd4 18. Rxg6+ Kf8 19. Bh6+ Ng7 20. Bxg7+ Bxg7 21. Rxg7 Kxg7 22. Kxb2 Qe5+ 23. c3 Rg8 24. f4 Qb5 25. Qd2 Kf8 26. h5 a5 27. Na3 Qc6 28. Qd4 Rg2+ 29. Ka1 Rc8 30. h6 e5 31. fxe5 dxe5 32. Qxe5 f6 33. Qd4 Ke7 34. Bd5 Qd6 35. Nc4 1-0

[Event "Vlissingen HZ op 04th"]
[Site "Vlissingen"]
[Date "2000.07.31"]
[Round "4"]
[White "Welten, Hans"]
[Black "Kabboord, K."]
[Result "1-0"]
[ECO "B25"]
[PlyCount "81"]
[EventDate "2000.07.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 077 Extra"]
[Source "ChessBase"]
[SourceDate "2000.09.14"]
[SourceVersion "1"]
[SourceVersionDate "2000.09.14"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. f4 d6 6. Nf3 e6 7. 0-0 Nge7 8. d3 Rb8 9. Be3 Nd4 10. Rb1 b5 11. Ne2 Nxf3+ 12. Bxf3 Qc7 13. Qd2 Bb7 14. c3 d5 15. Rfd1 Rd8 16. Qc2 0-0 17. g4 dxe4 18. dxe4 Rxd1+ 19. Rxd1 Rc8 20. Ng3 a6 21. Qf2 f5 22. gxf5 exf5 23. e5 Bxf3 24. Qxf3 b4 25. Qe2 a5 26. Qc4+ Kh8 27. Ne2 Qb7 28. Kf2 bxc3 29. bxc3 Qe4 30. Qxe4 fxe4 31. Ng3 g5 32. Nxe4 gxf4 33. Bxf4 Ng6 34. Kf3 Nxe5+ 35. Bxe5 Bxe5 36. Rd7 Bxh2 37. Nf6 Rc7 38. Rd8+ Kg7 39. Ne8+ Kg6 40. Nxc7 Bxc7 41. Rc8 1-0

[Event "Vlissingen HZ op 04th"]
[Site "Vlissingen"]
[Date "2000.07.30"]
[Round "3"]
[White "Haak, Eelco"]
[Black "Welten, Hans"]
[Result "1-0"]
[ECO "D91"]
[WhiteElo "2194"]
[PlyCount "71"]
[EventDate "2000.07.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 077 Extra"]
[Source "ChessBase"]
[SourceDate "2000.09.14"]
[SourceVersion "1"]
[SourceVersionDate "2000.09.14"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 d5 5. Bg5 0-0 6. Bxf6 Bxf6 7. cxd5 c5 8. dxc6 Nxc6 9. e3 Qa5 10. Qb3 Bf5 11. Qb5 Qxb5 12. Bxb5 Nb4 13. 0-0 a6 14. Be2 Rfc8 15. a3 Nd3 16. Nd5 Rc2 17. Bxd3 Bxd3 18. Ne1 Bxf1 19. Nxc2 Bb5 20. a4 Be8 21. Nxf6+ exf6 22. a5 Rc8 23. Na3 Ba4 24. Kf1 Bb3 25. Ke1 f5 26. Kd2 Bd5 27. g3 g5 28. Rc1 Rd8 29. Rc5 h5 30. Nc2 h4 31. Nb4 Be4 32. f3 Bxf3 33. Rxf5 g4 34. gxh4 Kg7 35. h3 f6 36. Rf4 1-0

[Event "Vlissingen HZ op 04th"]
[Site "Vlissingen"]
[Date "2000.07.30"]
[Round "2"]
[White "Welten, Hans"]
[Black "Geukes, Rob"]
[Result "1-0"]
[ECO "B80"]
[PlyCount "99"]
[EventDate "2000.07.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 077 Extra"]
[Source "ChessBase"]
[SourceDate "2000.09.14"]
[SourceVersion "1"]
[SourceVersionDate "2000.09.14"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 e6 3. Nf3 Be7 4. g3 Nc6 5. Bg2 d6 6. 0-0 Nf6 7. d4 cxd4 8. Nxd4 0-0 9. Be3 Nxd4 10. Bxd4 e5 11. Be3 Be6 12. Qe2 Qc8 13. Rfd1 Rd8 14. Rac1 Bc4 15. Qd2 Be6 16. Bg5 Qd7 17. f4 Ne8 18. fxe5 Bg4 19. Rf1 dxe5 20. Nd5 f6 21. Be3 Bf8 22. Qf2 Kh8 23. Bf3 Bxf3 24. Qxf3 Qb5 25. b3 Bc5 26. c4 Bxe3+ 27. Qxe3 Qd7 28. Rfd1 Qg4 29. Rd2 b6 30. Qe2 Qxe2 31. Rxe2 Rd7 32. c5 bxc5 33. Rxc5 Rad8 34. Rec2 Nd6 35. Rc7 h6 36. Re2 Nxe4 37. Rxe4 Rxd5 38. Rxa7 f5 39. Re2 e4 40. Kf2 Rd3 41. b4 Re8 42. b5 g5 43. b6 Rb8 44. Rc2 e3+ 45. Ke2 Rd2+ 46. Rxd2 exd2 47. b7 Kg7 48. a4 Kf6 49. Kxd2 Re8 50. Ra8 1-0

[Event "Vlissingen HZ op 04th"]
[Site "Vlissingen"]
[Date "2000.07.29"]
[Round "1"]
[White "Van Beek, Lucien"]
[Black "Welten, Hans"]
[Result "1-0"]
[ECO "D85"]
[WhiteElo "2416"]
[PlyCount "81"]
[EventDate "2000.07.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 077 Extra"]
[Source "ChessBase"]
[SourceDate "2000.09.14"]
[SourceVersion "1"]
[SourceVersionDate "2000.09.14"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Be3 0-0 8. Qd2 c5 9. Nf3 Qa5 10. Rb1 cxd4 11. cxd4 Nc6 12. Bd3 Rd8 13. Qxa5 Nxa5 14. Ke2 Bg4 15. d5 b6 16. Rhc1 Nb7 17. h3 Bxf3+ 18. gxf3 Be5 19. f4 Bd6 20. e5 Bc5 21. Bb5 Bxe3 22. fxe3 Rxd5 23. Bc6 Ra5 24. Bxb7 Rxa2+ 25. Kf3 Rd8 26. Ra1 Rdd2 27. Rxa2 Rxa2 28. e6 Rb2 29. Rc7 a5 30. Rxe7 fxe6 31. Bc8 a4 32. Bxe6+ Kh8 33. Ra7 b5 34. Ra5 Rb1 35. Bd7 a3 36. Rxa3 b4 37. Ra8+ Kg7 38. Ra7 Kh8 39. Be6 b3 40. Rb7 b2 41. Ke4 1-0

[Event "Vlissingen HZ op 03rd"]
[Site "Vlissingen"]
[Date "1999.08.15"]
[Round "7"]
[White "Koes, Richard"]
[Black "Welten, Hans"]
[Result "1/2-1/2"]
[ECO "B07"]
[PlyCount "92"]
[EventDate "1999.08.09"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Bd3 c5 4. c3 g6 5. d5 c4 6. Bc2 b5 7. Be3 Bg7 8. Nd2 0-0 9. Ne2 Qc7 10. Nf3 a5 11. Nfd4 Ba6 12. Ng3 Nbd7 13. f4 b4 14. 0-0 b3 15. axb3 cxb3 16. Bd3 Nc5 17. Bxa6 Rxa6 18. Qe2 Rfa8 19. f5 Ncxe4 20. Nxe4 Nxe4 21. fxg6 hxg6 22. Rxf7 Kxf7 23. Ne6 Qb7 24. Rf1+ Nf6 25. c4 Rh8 26. Bd4 Qd7 27. g4 Kg8 28. g5 Ne8 29. Bxg7 Nxg7 30. Rf8+ Kh7 31. Qf3 Qxe6 32. Rxh8+ Kxh8 33. dxe6 a4 34. Qb7 Ra5 35. Qxe7 Re5 36. Qxd6 Rxe6 37. Qb4 Ra6 38. c5 Kh7 39. c6 Rxc6 40. Qxa4 Rc1+ 41. Kf2 Rc2+ 42. Kf3 Rxb2 43. h4 Rh2 44. Qe4 b2 45. Kg3 Rd2 46. Qb1 Re2 1/2-1/2

[Event "Vlissingen HZ op 03rd"]
[Site "Vlissingen"]
[Date "1999.08.14"]
[Round "6"]
[White "Welten, Hans"]
[Black "Quakkelaar, Anton"]
[Result "1/2-1/2"]
[ECO "B13"]
[PlyCount "100"]
[EventDate "1999.08.09"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Bf5 5. Nc3 e6 6. Qb3 Qd7 7. cxd5 exd5 8. Qxd5 Qxd5 9. Nxd5 Bd6 10. Nf3 Be4 11. Bc4 Nc6 12. Be3 Nge7 13. Nc3 Bxf3 14. gxf3 0-0 15. 0-0 Nf5 16. Rad1 Rfe8 17. Ne4 Rad8 18. Bb5 Re6 19. Bxc6 bxc6 20. Nxd6 Rexd6 21. d5 Nxe3 22. fxe3 cxd5 23. Rd2 f5 24. Rc1 R8d7 25. Kf2 Kf7 26. Rdc2 Rh6 27. Kg3 Re6 28. Rc7 Ke7 29. Rxd7+ Kxd7 30. Kf4 g6 31. Rc5 Kd6 32. Ra5 Re7 33. h4 Rb7 34. b3 Kc6 35. Ke5 Re7+ 36. Kd4 Rb7 37. Rc5+ Kd6 38. Rxd5+ Ke6 39. Rc5 Rd7+ 40. Kc3 Rd1 41. Kb4 Rf1 42. f4 Rh1 43. h5 Rxh5 44. Ra5 Rh3 45. Rxa7 Rxe3 46. Rxh7 Re4+ 47. Kb5 Rxf4 48. a4 Rf3 49. b4 f4 50. a5 Ra3 1/2-1/2

[Event "Vlissingen HZ op 03rd"]
[Site "Vlissingen"]
[Date "1999.08.13"]
[Round "5"]
[White "Montenegro Garcia, Marcos"]
[Black "Welten, Hans"]
[Result "1-0"]
[ECO "B22"]
[WhiteElo "2026"]
[PlyCount "73"]
[EventDate "1999.08.09"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. e4 c5 2. c3 d5 3. exd5 Qxd5 4. d4 e6 5. Nf3 Nf6 6. Bd3 Be7 7. 0-0 0-0 8. Be3 Nc6 9. Qe2 cxd4 10. Nxd4 e5 11. Nf5 Bxf5 12. Bxf5 e4 13. Bh3 Rfd8 14. Nd2 Ne5 15. Bd4 Bc5 16. Bxc5 Qxd2 17. Qxd2 Rxd2 18. b3 Nfg4 19. Rfd1 Rxd1+ 20. Rxd1 Nd3 21. Bd4 h5 22. g3 Re8 23. Bf1 Nge5 24. Kg2 Re6 25. Be2 h4 26. Rd2 Ne1+ 27. Kh3 hxg3 28. Kxg3 Rg6+ 29. Kf4 N5f3 30. Bxf3 Nxf3 31. Re2 Nxh2 32. Kxe4 Re6+ 33. Kd3 Rxe2 34. Kxe2 b6 35. f3 g5 36. Be5 Nxf3 37. Kxf3 1-0

[Event "Vlissingen HZ op 03rd"]
[Site "Vlissingen"]
[Date "1999.08.12"]
[Round "4"]
[White "Welten, Hans"]
[Black "Sinke, Wim"]
[Result "1-0"]
[ECO "C10"]
[PlyCount "57"]
[EventDate "1999.08.09"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nd7 5. Nf3 Ngf6 6. Nxf6+ Nxf6 7. g3 Bd6 8. Bg2 0-0 9. 0-0 Rb8 10. Qe2 Bd7 11. Ne5 c5 12. Bf4 Qc7 13. dxc5 Qxc5 14. Nxd7 Nxd7 15. Be3 Qe5 16. Qd2 Rfd8 17. Bf4 Qxb2 18. Qxd6 e5 19. Be3 Nb6 20. Qe7 Rd7 21. Qh4 Rbd8 22. Be4 g6 23. Bg5 f6 24. Bxf6 Rf8 25. Qg5 Nc4 26. Rad1 Nd2 27. Rxd2 Rxd2 28. Qxd2 Rxf6 29. Qd8+ 1-0

[Event "Vlissingen HZ op 03rd"]
[Site "Vlissingen"]
[Date "1999.08.11"]
[Round "3"]
[White "Straat, Evert Jan"]
[Black "Welten, Hans"]
[Result "1-0"]
[ECO "A57"]
[WhiteElo "2210"]
[PlyCount "77"]
[EventDate "1999.08.09"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. b6 Qxb6 6. Nc3 d6 7. e4 g6 8. h3 Bg7 9. Nf3 Nfd7 10. Be2 0-0 11. 0-0 a5 12. a4 Na6 13. Ra3 Nb4 14. Bg5 Re8 15. Bb5 Qc7 16. Re1 Ba6 17. h4 h5 18. Qd2 Kh7 19. Nh2 Ne5 20. Qe2 Qc8 21. Bxa6 Rxa6 22. Nb5 c4 23. Be3 Ned3 24. Rb1 Ra8 25. Nf3 Rb8 26. Nfd4 Qd7 27. Rc3 Rec8 28. b3 cxb3 29. Rxd3 Nxd3 30. Qxd3 Qg4 31. g3 Bxd4 32. Bxd4 Rc2 33. Be3 Rd8 34. Rxb3 Re2 35. Nd4 Re1+ 36. Kg2 Ra1 37. Rb7 Rxa4 38. Rxe7 Rf8 39. Ne6 1-0

[Event "Vlissingen HZ op 03rd"]
[Site "Vlissingen"]
[Date "1999.08.10"]
[Round "2"]
[White "Welten, Hans"]
[Black "Sanders, Stefan"]
[Result "1-0"]
[ECO "C13"]
[PlyCount "119"]
[EventDate "1999.08.09"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nd7 5. Nf3 Ngf6 6. Bg5 Be7 7. Ned2 0-0 8. Bd3 c5 9. 0-0 cxd4 10. Nxd4 Ne5 11. N2f3 Nxd3 12. Qxd3 Bd7 13. Rad1 Qc7 14. Nb5 Bxb5 15. Qxb5 Rfd8 16. c3 a6 17. Qe2 Rac8 18. Rd4 Rxd4 19. Nxd4 Qc4 20. Qxc4 Rxc4 21. Rd1 Rc8 22. Nc2 Rd8 23. Rd4 e5 24. Rxd8+ Bxd8 25. Ne3 h6 26. Bxf6 gxf6 27. Kf1 Kg7 28. Ke2 Kg6 29. Kd3 f5 30. f3 Bc7 31. g3 f4 32. gxf4 exf4 33. Ng2 Kf5 34. a4 Bb6 35. b4 a5 36. bxa5 Bxa5 37. Kd4 Bb6+ 38. Kd5 Bg1 39. h3 Be3 40. c4 b6 41. Kd6 Bc5+ 42. Kc6 Bf2 43. Kb5 Ke5 44. a5 bxa5 45. Kxa5 Be3 46. Kb5 Kd6 47. Ne1 Ke5 48. Nd3+ Kf5 49. c5 Bxc5 50. Kxc5 Kg5 51. Kd5 Kh4 52. Nxf4 Kg3 53. Ke4 Kf2 54. h4 f5+ 55. Kxf5 Kxf3 56. h5 Kg3 57. Ne6 Kh4 58. Kg6 Kg4 59. Kxh6 Kf5 60. Kg7 1-0

[Event "Vlissingen HZ op 03rd"]
[Site "Vlissingen"]
[Date "1999.08.09"]
[Round "1"]
[White "Escher, Johan"]
[Black "Welten, Hans"]
[Result "1/2-1/2"]
[ECO "B22"]
[PlyCount "135"]
[EventDate "1999.08.09"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. e4 c5 2. c3 d5 3. exd5 Qxd5 4. Nf3 Nf6 5. d4 Nc6 6. Bb5 cxd4 7. Bxc6+ bxc6 8. cxd4 Ba6 9. Nc3 Qa5 10. Bd2 e6 11. Ne4 Qf5 12. Nxf6+ gxf6 13. Be3 Bb4+ 14. Nd2 Qd3 15. a3 Ba5 16. b4 Bb6 17. Nb3 Qe4 18. Qf3 Qxf3 19. gxf3 Rg8 20. Nc5 Bc4 21. Ne4 Ke7 22. Rc1 Bd5 23. Ke2 a5 24. Rb1 Rgb8 25. Rhc1 axb4 26. axb4 Ra2+ 27. Kd1 Bxe4 28. fxe4 Rg8 29. f3 Rgg2 30. Ra1 Kd7 31. Rxa2 Rxa2 32. Rc2 Ra1+ 33. Kd2 Rf1 34. f4 Rh1 35. Kd3 Rb1 36. Kc4 Re1 37. Kd3 Rd1+ 38. Rd2 Rb1 39. Kc4 Rc1+ 40. Kd3 Rb1 41. Kc4 Ra1 42. Rg2 Ra3 43. Bc1 Rh3 44. d5 Be3 45. dxc6+ Kxc6 46. Bxe3 Rxe3 47. Kd4 Rb3 48. Kc4 Rf3 49. Rg7 Rxf4 50. Kd3 Rh4 51. Rxf7 Rh6 52. Kd4 e5+ 53. Kc4 Kd6 54. b5 Ke6 55. Ra7 Rxh2 56. b6 Rb2 57. Kc5 h5 58. Rh7 Rc2+ 59. Kb5 Rh2 60. b7 Rb2+ 61. Ka6 Ra2+ 62. Kb6 Rb2+ 63. Kc7 Rc2+ 64. Kb8 f5 65. exf5+ Kxf5 66. Rc7 Rb2 67. Kc8 Kf4 68. Rf7+ 1/2-1/2

[Event "Vlissingen HZ op 02nd"]
[Site "Vlissingen"]
[Date "1998.??.??"]
[Round "4"]
[White "Donovan, Linton"]
[Black "Welten, Hans"]
[Result "1-0"]
[ECO "B21"]
[PlyCount "87"]
[EventDate "1998.07.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 e6 3. f4 d5 4. Nf3 dxe4 5. Nxe4 Be7 6. Bb5+ Bd7 7. Bxd7+ Nxd7 8. d3 Ngf6 9. 0-0 0-0 10. Kh1 Nd5 11. Qe1 N7f6 12. a3 Qc7 13. Ne5 Nxe4 14. dxe4 Nf6 15. Bd2 Rfd8 16. Bc3 Nd7 17. Ng4 f6 18. Qg3 Kh8 19. Rae1 b6 20. Re3 Nf8 21. Qh4 Rd7 22. Qh5 Rad8 23. e5 Rd1 24. Ref3 f5 25. Nf6 g6 26. Qh6 Qc6 27. Be1 Qb5 28. h4 Bxf6 29. exf6 Qd7 30. Bc3 Qf7 31. Qg7+ Qxg7 32. fxg7+ Kg8 33. gxf8Q+ Kxf8 34. Rxd1 Rxd1+ 35. Kh2 c4 36. Re3 Kf7 37. Re1 Rd7 38. Re2 Rb7 39. Rd2 b5 40. Rd8 Ke7 41. Rh8 Kd6 42. Re8 Kc7 43. Ba5+ Kc6 44. Bb4 1-0

[Event "Vlissingen HZ op 02nd"]
[Site "Vlissingen"]
[Date "1998.??.??"]
[Round "6"]
[White "Jansen, CDW"]
[Black "Welten, Hans"]
[Result "1/2-1/2"]
[ECO "D75"]
[PlyCount "52"]
[EventDate "1998.07.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. c4 Nf6 2. Nf3 g6 3. Nc3 d5 4. cxd5 Nxd5 5. g3 Bg7 6. Bg2 0-0 7. 0-0 c5 8. d4 Nc6 9. Nxd5 Qxd5 10. Ne5 Qxd4 11. Nxc6 bxc6 12. Bxc6 Bh3 13. Bxa8 Bxf1 14. Qxf1 Rxa8 15. Rb1 Qa4 16. a3 Qc2 17. Be3 Bxb2 18. Bxc5 Qxc5 19. Rxb2 Qxa3 20. Qb1 a5 21. Rb6 Qc5 22. Rb5 Qd6 23. Qe4 Ra6 24. Rd5 Qc7 25. Qa4 Qd6 26. Rxd6 Rxd6 1/2-1/2

[Event "Vlissingen HZ op 02nd"]
[Site "Vlissingen"]
[Date "1998.??.??"]
[Round "1"]
[White "Klootwijk, P."]
[Black "Welten, Hans"]
[Result "0-1"]
[ECO "A03"]
[PlyCount "96"]
[EventDate "1998.07.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. f4 d5 2. g3 c5 3. Nf3 Nf6 4. Bg2 Nc6 5. e3 e6 6. a3 Bd6 7. d3 0-0 8. b3 Re8 9. 0-0 e5 10. Nh4 exf4 11. exf4 Bg4 12. Bf3 Qd7 13. Bb2 Bxf3 14. Qxf3 d4 15. Nd2 Re3 16. Qg2 Rae8 17. Nhf3 Re2 18. Rf2 Rxf2 19. Qxf2 Ng4 20. Qf1 Ne3 21. Qf2 Nxc2 22. Rc1 Ne3 23. Ne4 b6 24. Re1 Bc7 25. Bc1 Ng4 26. Qf1 Ne7 27. h3 Nh6 28. g4 Nd5 29. Nh2 Kh8 30. f5 Ng8 31. Qf2 Ngf6 32. Nf1 Nxe4 33. Rxe4 Rxe4 34. dxe4 Nc3 35. Qe1 Be5 36. Bb2 h6 37. a4 Qc6 38. Bxc3 dxc3 39. Qb1 Qd6 40. Qc2 a6 41. Kg2 b5 42. axb5 axb5 43. Kf3 Bd4 44. Qd3 Qa6 45. Ne3 Qa1 46. Qc2 Qh1+ 47. Qg2 Qxg2+ 48. Nxg2 c2 0-1

[Event "Vlissingen HZ op 02nd"]
[Site "Vlissingen"]
[Date "1998.??.??"]
[Round "5"]
[White "Welten, Hans"]
[Black "Korving, Frank"]
[Result "1-0"]
[ECO "B14"]
[PlyCount "99"]
[EventDate "1998.07.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nf3 e6 6. Nc3 Be7 7. c5 Nc6 8. Be3 0-0 9. h3 b6 10. Bb5 Qc7 11. Bxc6 Qxc6 12. b4 bxc5 13. bxc5 Ba6 14. Ne5 Qc7 15. Nd3 Qa5 16. Qc2 Ne4 17. Bd2 Nxd2 18. Qxd2 Bf6 19. Ne2 Qxd2+ 20. Kxd2 Bc4 21. a4 Rab8 22. Rhb1 a5 23. Ne5 Bxe5 24. dxe5 Rbc8 25. Nd4 Rxc5 26. Nb5 g5 27. Nd6 d4 28. Rc1 Rxe5 29. Rxc4 Rd5 30. Nb5 e5 31. f3 f5 32. Kd3 Kg7 33. Rac1 Kg6 34. Rc7 Rf7 35. R1c6+ Kg7 36. Nd6 Rxc7 37. Nxf5+ Kf7 38. Rxc7+ Ke6 39. Ng3 Rd7 40. Rxd7 Kxd7 41. Ne4 h6 42. Kc4 Kc6 43. Nf6 Kd6 44. Kb5 d3 45. Kc4 Kc6 46. Kxd3 Kc5 47. Kc3 Kd6 48. Kc4 Kc6 49. Ne4 h5 50. Nxg5 1-0

[Event "Vlissingen HZ op 02nd"]
[Site "Vlissingen"]
[Date "1998.??.??"]
[Round "3"]
[White "Welten, Hans"]
[Black "Safin, Shukhrat"]
[Result "1/2-1/2"]
[ECO "C45"]
[BlackElo "2510"]
[PlyCount "73"]
[EventDate "1998.07.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nge7 5. Bg5 h6 6. Nxc6 bxc6 7. Be3 Ng6 8. Bc4 Bb4+ 9. c3 Be7 10. 0-0 Ne5 11. Be2 d6 12. f4 Nd7 13. Nd2 0-0 14. Qc2 Nf6 15. Rae1 Re8 16. Kh1 Bb7 17. Bf3 Qc8 18. Nb3 a5 19. Nd4 Bf8 20. Bc1 c5 21. e5 cxd4 22. Bxb7 Qxb7 23. exf6 dxc3 24. Qxc3 Qb4 25. Qg3 Qd4 26. fxg7 Bxg7 27. f5 Qf6 28. Bd2 Rxe1 29. Bxe1 Qe5 30. Qf3 Re8 31. Bc3 Qe2 32. f6 Qxf3 33. Rxf3 Bf8 34. Bxa5 c5 35. h4 d5 36. a3 Re4 37. g3 1/2-1/2

[Event "Vlissingen HZ op 02nd"]
[Site "Vlissingen"]
[Date "1998.??.??"]
[Round "2"]
[White "Welten, Hans"]
[Black "Soderberg, Per"]
[Result "1/2-1/2"]
[ECO "B24"]
[BlackElo "2245"]
[PlyCount "98"]
[EventDate "1998.07.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. g3 e6 4. Bg2 Nf6 5. f4 d5 6. d3 Be7 7. Bd2 a6 8. Nf3 b5 9. Qe2 0-0 10. 0-0 b4 11. Nd1 a5 12. Nf2 Ba6 13. e5 Nd7 14. Rae1 c4 15. Be3 Rc8 16. d4 Nb6 17. c3 Na4 18. Nd1 Qb6 19. Bc1 bxc3 20. bxc3 Qb1 21. Qd2 Rfe8 22. Re2 Qb7 23. Bh3 Nb6 24. f5 Nd8 25. f6 gxf6 26. exf6 Bxf6 27. Ng5 Qe7 28. Nxh7 Bg7 29. Qc2 f6 30. Qg6 Nd7 31. Bh6 Qf7 32. Nxf6+ Nxf6 33. Rxf6 Qxg6 34. Rxg6 Kh7 35. Rxg7+ Kxh6 36. Rg4 Rb8 37. Rf4 Rb1 38. Rf1 Rc1 39. Bg4 Bb5 40. Rb2 Ba4 41. Rb6 Bxd1 42. Bxd1 Rxc3 43. Ba4 Re7 44. Rb8 Nf7 45. Rf4 Ng5 46. Rh4+ Kg6 47. Rg4 Kf5 48. Rf4+ Kg6 49. Rg4 Kf5 1/2-1/2

[Event "Vlissingen HZ op 02nd"]
[Site "Vlissingen"]
[Date "1998.??.??"]
[Round "7"]
[White "Welten, Hans"]
[Black "Westerweele, Maarten"]
[Result "1-0"]
[ECO "D97"]
[PlyCount "55"]
[EventDate "1998.07.??"]
[EventType "swiss"]
[EventRounds "7"]
[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. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 0-0 7. e4 Nc6 8. Be3 Nd7 9. Rd1 Nb6 10. Qc5 a6 11. h3 Qd6 12. Qxd6 exd6 13. Bd3 Ne7 14. 0-0 h6 15. Rfe1 Kh7 16. Bf1 Nd7 17. a4 Re8 18. Bc4 Rf8 19. Bf4 Nb6 20. Ba2 Nc6 21. e5 dxe5 22. Nxe5 Nxe5 23. Bxe5 Bxe5 24. dxe5 Kg7 25. a5 Nd7 26. Nd5 c6 27. Nc7 Rb8 28. e6 1-0

[Event "Vlissingen HZ op 01st"]
[Site "Vlissingen"]
[Date "1997.??.??"]
[Round "4"]
[White "De Waal, Mark"]
[Black "Welten, Hans"]
[Result "1-0"]
[ECO "A57"]
[WhiteElo "2255"]
[PlyCount "77"]
[EventDate "1997.07.05"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "CBM 058 Extra"]
[Source "ChessBase"]
[SourceDate "1997.07.29"]
[SourceVersion "1"]
[SourceVersionDate "1997.07.29"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 b5 4. Nd2 d6 5. e4 bxc4 6. Bxc4 g6 7. b3 Bg7 8. Bb2 0-0 9. Ne2 e5 10. Ng3 Ne8 11. 0-0 f5 12. f4 exf4 13. Bxg7 Nxg7 14. Rxf4 g5 15. Rf1 Qf6 16. exf5 Bxf5 17. Nde4 Qg6 18. Nxf5 Rxf5 19. Rxf5 Nxf5 20. Qg4 Nd7 21. Qxg5 Re8 22. Qxg6+ hxg6 23. Nc3 Nd4 24. Nb5 Nxb5 25. Bxb5 Re7 26. Bxd7 Rxd7 27. Re1 Kf7 28. Re6 a5 29. Re4 Rb7 30. Kf2 Rb8 31. Kf3 Rh8 32. Re6 Rd8 33. h3 Rd7 34. Re4 Rb7 35. Kf4 Rb8 36. g4 Rh8 37. Re6 Rd8 38. Kg5 a4 39. Rxg6 1-0

[Event "Vlissingen HZ op 01st"]
[Site "Vlissingen"]
[Date "1997.??.??"]
[Round "6"]
[White "Kunst, Robert"]
[Black "Welten, Hans"]
[Result "1/2-1/2"]
[ECO "A45"]
[PlyCount "112"]
[EventDate "1997.07.05"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "CBM 058 Extra"]
[Source "ChessBase"]
[SourceDate "1997.07.29"]
[SourceVersion "1"]
[SourceVersionDate "1997.07.29"]
[SourceQuality "1"]

1. d4 Nf6 2. Bg5 Ne4 3. Bf4 c5 4. dxc5 Qa5+ 5. Nd2 Nc6 6. a3 Nxd2 7. b4 Qd8 8. Qxd2 e5 9. Bg3 d5 10. cxd6 Bxd6 11. Rd1 Bc7 12. Qxd8+ Nxd8 13. e3 0-0 14. Be2 Be6 15. Nf3 f6 16. 0-0 Nf7 17. Ne1 Nd6 18. Nd3 b6 19. Nb2 a5 20. b5 Rac8 21. f3 Nf5 22. Bf2 Bd6 23. g4 Bxa3 24. gxf5 Bxf5 25. Nc4 Bb4 26. Bd3 Bh3 27. Nxb6 Rb8 28. e4 Rb7 29. Nd5 Bxf1 30. Kxf1 Rd8 31. Nxb4 axb4 32. Rb1 Ra8 33. Rxb4 Ra1+ 34. Ke2 g5 35. Bc4+ Kg7 36. Bd5 Rb8 37. Kd3 Rf1 38. Ke2 Rc1 39. Rb2 Ra1 40. c4 Rh1 41. b6 Rxh2 42. c5 h5 43. c6 g4 44. fxg4 hxg4 45. Ke3 g3 46. Bxg3 Rxb2 47. c7 R2xb6 48. cxb8Q Rxb8 49. Kf3 Rb1 50. Bf2 Rf1 51. Kg2 Rc1 52. Kg3 Rc3+ 53. Kg4 Kg6 54. Be6 Rc2 55. Bf5+ Kg7 56. Kf3 Rc3+ 1/2-1/2

[Event "Vlissingen HZ op 01st"]
[Site "Vlissingen"]
[Date "1997.??.??"]
[Round "2"]
[White "Pliester, Leon"]
[Black "Welten, Hans"]
[Result "1-0"]
[ECO "A30"]
[WhiteElo "2365"]
[PlyCount "51"]
[EventDate "1997.07.05"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "CBM 058 Extra"]
[Source "ChessBase"]
[SourceDate "1997.07.29"]
[SourceVersion "1"]
[SourceVersionDate "1997.07.29"]
[SourceQuality "1"]

1. Nf3 c5 2. b3 Nf6 3. Bb2 e6 4. e3 Nc6 5. c4 Be7 6. d4 d6 7. d5 exd5 8. cxd5 Nb8 9. Bd3 Bg4 10. Nc3 Nfd7 11. Qc2 Bxf3 12. gxf3 Ne5 13. Be2 Nbd7 14. Ne4 Nf6 15. Rg1 Ng6 16. Ng3 0-0 17. Rd1 Re8 18. Nf5 Bf8 19. h4 a6 20. f4 h5 21. Rg5 b5 22. Bxh5 Nxh5 23. Rxh5 c4 24. Rg5 Be7 25. Nh6+ gxh6 26. Rxg6+ 1-0

[Event "Vlissingen HZ op 01st"]
[Site "Vlissingen"]
[Date "1997.??.??"]
[Round "7"]
[White "Van Gompel, Rob"]
[Black "Welten, Hans"]
[Result "1/2-1/2"]
[ECO "B38"]
[PlyCount "38"]
[EventDate "1997.07.05"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "CBM 058 Extra"]
[Source "ChessBase"]
[SourceDate "1997.07.29"]
[SourceVersion "1"]
[SourceVersionDate "1997.07.29"]
[SourceQuality "1"]

1. e4 c5 2. c4 d6 3. Ne2 Nf6 4. Nbc3 g6 5. d4 cxd4 6. Nxd4 Bg7 7. Be2 Nc6 8. Be3 0-0 9. f3 Bd7 10. Qd2 Rc8 11. Rc1 Ne5 12. b3 Bc6 13. 0-0 b6 14. Nxc6 Nxc6 15. Rfd1 Qc7 16. Bg5 Qb7 17. Nd5 Nxd5 18. cxd5 Nb8 19. Bc4 f6 1/2-1/2

[Event "Vlissingen HZ op 01st"]
[Site "Vlissingen"]
[Date "1997.??.??"]
[Round "1"]
[White "Welten, Hans"]
[Black "Bruys, Piet"]
[Result "1-0"]
[ECO "B08"]
[PlyCount "107"]
[EventDate "1997.07.05"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "CBM 058 Extra"]
[Source "ChessBase"]
[SourceDate "1997.07.29"]
[SourceVersion "1"]
[SourceVersionDate "1997.07.29"]
[SourceQuality "1"]

1. e4 g6 2. d4 Bg7 3. Nf3 c6 4. Bd3 d6 5. 0-0 Nf6 6. Nc3 0-0 7. h3 b5 8. a3 Qc7 9. Bf4 Nh5 10. Be3 Nd7 11. Qd2 e5 12. d5 a6 13. dxc6 Qxc6 14. Nd5 Re8 15. Rac1 Nhf6 16. c4 Nxd5 17. cxd5 Qb7 18. b4 Nf6 19. Bb1 Bd7 20. Rc3 Rac8 21. Rfc1 Rxc3 22. Rxc3 Rc8 23. Kf1 Rc7 24. Qc1 Rxc3 25. Qxc3 Qc8 26. Qxc8+ Bxc8 27. Nd2 h5 28. f3 Kh7 29. Nb3 Bh6 30. Ke2 h4 31. Bxh6 Kxh6 32. Bd3 g5 33. Na5 Nh5 34. Kd2 Nf4 35. Bf1 Kg6 36. Nc6 Kg7 37. Kc3 Kf8 38. Kb3 Ke8 39. a4 bxa4+ 40. Kxa4 Bb7 41. Ka5 Kd7 42. Nb8+ Kc8 43. Nxa6 f5 44. b5 Bxd5 45. exd5 Nxd5 46. Nb4 Ne3 47. Ka6 Nxf1 48. b6 Ne3 49. b7+ Kb8 50. Nc6+ Kc7 51. b8Q+ Kd7 52. Qb7+ Ke6 53. Nd8+ Kf6 54. Qf7# 1-0

[Event "Vlissingen HZ op 01st"]
[Site "Vlissingen"]
[Date "1997.??.??"]
[Round "5"]
[White "Welten, Hans"]
[Black "Marx, Gemma"]
[Result "0-1"]
[ECO "C45"]
[PlyCount "64"]
[EventDate "1997.07.05"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "CBM 058 Extra"]
[Source "ChessBase"]
[SourceDate "1997.07.29"]
[SourceVersion "1"]
[SourceVersionDate "1997.07.29"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Be3 Bb6 6. Bc4 d6 7. 0-0 Nf6 8. Nxc6 bxc6 9. Bxb6 cxb6 10. Nc3 0-0 11. Re1 Re8 12. Qf3 Qc7 13. Qf4 Be6 14. Bd3 Rad8 15. Qg5 Bg4 16. h3 Bh5 17. f4 h6 18. Qg3 Bg6 19. Rad1 b5 20. e5 dxe5 21. fxe5 Nh5 22. Qe3 Bxd3 23. cxd3 b4 24. Na4 f6 25. e6 Nf4 26. Nc5 Rd5 27. d4 Rg5 28. Rd2 Nd5 29. Qe4 Nf4 30. Qf3 Qd6 31. Qb3 Rxc5 32. Qg3 Ne2+ 0-1

[Event "Vlissingen HZ op 01st"]
[Site "Vlissingen"]
[Date "1997.??.??"]
[Round "3"]
[White "Welten, Hans"]
[Black "Van Amerongen Jansen, Peggy"]
[Result "1-0"]
[ECO "D38"]
[BlackElo "2070"]
[PlyCount "75"]
[EventDate "1997.07.05"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "CBM 058 Extra"]
[Source "ChessBase"]
[SourceDate "1997.07.29"]
[SourceVersion "1"]
[SourceVersionDate "1997.07.29"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Nc3 Bb4 5. Bg5 0-0 6. e3 Nc6 7. Bd3 Re8 8. 0-0 Be7 9. a3 a6 10. Rc1 b6 11. cxd5 exd5 12. Qc2 Bg4 13. Bxf6 Bxf6 14. Nxd5 Qxd5 15. Qxc6 Bxf3 16. gxf3 Qxc6 17. Rxc6 Bd8 18. Rfc1 Re6 19. Rxe6 fxe6 20. Rc6 b5 21. Rxe6 Kf7 22. Rc6 g6 23. Be4 Ra7 24. Bd5+ Kg7 25. Kg2 Kh6 26. f4 Be7 27. f5 Kg7 28. fxg6 hxg6 29. e4 a5 30. e5 Rb7 31. Rxg6+ Kxg6 32. Bxb7 b4 33. a4 Bg5 34. b3 Bd2 35. Kf3 Kf5 36. Bc8+ Kg6 37. Ke4 Kf7 38. f4 1-0

[Event "Vlissingen op"]
[Site "Vlissingen"]
[Date "1995.??.??"]
[Round "7"]
[White "Boogaard, Corne"]
[Black "Welten, Hans"]
[Result "0-1"]
[ECO "B20"]
[PlyCount "96"]
[EventDate "1995.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. e4 c5 2. g3 Nc6 3. Bg2 Nf6 4. Ne2 e6 5. f4 Qb6 6. Nbc3 d6 7. b3 Bd7 8. Bb2 Nd4 9. 0-0 h5 10. a4 a6 11. a5 Qa7 12. Na4 Bxa4 13. Rxa4 Nb5 14. e5 Ng4 15. c4 Nd4 16. h3 Nh6 17. Nxd4 cxd4 18. Qf3 0-0-0 19. exd6 Bxd6 20. c5 Bc7 21. Rb4 Rd5 22. Qd3 Rhd8 23. Bxd5 Rxd5 24. Rc1 Nf5 25. c6 b5 26. axb6 Bxb6 27. c7 Qb7 28. g4 Nh4 29. Qg3 d3+ 30. Kh2 Re5 31. Bxe5 Nf3+ 32. Kg2 Nh4+ 33. Kh2 Nf3+ 34. Qxf3 Qxf3 35. Bd4 Qxf4+ 36. Kh1 Qf3+ 37. Kh2 Qf4+ 38. Kh1 Qe4+ 39. Kh2 Qf4+ 40. Kh1 Qf3+ 41. Kg1 Qg3+ 42. Kf1 Qf3+ 43. Kg1 Qg3+ 44. Kf1 Qxh3+ 45. Kf2 Qh2+ 46. Ke3 Qe2+ 47. Kf4 Qxd2+ 48. Ke5 Bxd4+ 0-1

[Event "Vlissingen op"]
[Site "Vlissingen"]
[Date "1995.??.??"]
[Round "5"]
[White "De Jager, Jaap"]
[Black "Welten, Hans"]
[Result "1/2-1/2"]
[ECO "D02"]
[WhiteElo "2215"]
[PlyCount "92"]
[EventDate "1995.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 0-0 5. 0-0 d5 6. Nbd2 Nbd7 7. Re1 c5 8. c3 cxd4 9. cxd4 Nb6 10. b3 Bf5 11. Ba3 Rc8 12. e3 Re8 13. Rc1 Ne4 14. Nxe4 Bxe4 15. Rxc8 Nxc8 16. Ne5 Bxg2 17. Kxg2 Qa5 18. Qc1 a6 19. Re2 Na7 20. Qc5 Qxc5 21. Bxc5 Nc6 22. Nxc6 bxc6 23. f4 e6 24. Rc2 Rc8 25. a3 f6 26. Bd6 Kf7 27. h4 e5 28. fxe5 fxe5 29. Bc5 Ke6 30. g4 Bf6 31. Kg3 e4 32. Rf2 g5 33. h5 h6 34. Rf5 Rb8 35. b4 Ra8 36. Bb6 Rf8 37. Bc5 Ra8 38. Bb6 Rb8 39. Bc7 Rb7 40. Ba5 Rb8 41. Kf2 Rb7 42. Ke2 Be7 43. Re5+ Kf7 44. Kd2 Bf6 45. Rf5 Ke6 46. Kc3 Be7 1/2-1/2

[Event "Vlissingen op"]
[Site "Vlissingen"]
[Date "1995.??.??"]
[Round "1"]
[White "Rijkers, G."]
[Black "Welten, Hans"]
[Result "0-1"]
[ECO "B50"]
[PlyCount "85"]
[EventDate "1995.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d3 Nc6 4. Nc3 g6 5. d4 cxd4 6. Nxd4 Bg7 7. Nxc6 bxc6 8. Bd2 Nf6 9. h3 0-0 10. Bc4 d5 11. exd5 cxd5 12. Bd3 e5 13. 0-0 Be6 14. Re1 Nd7 15. Na4 Rb8 16. c3 e4 17. Bc2 Qc7 18. Rc1 f5 19. b3 f4 20. c4 e3 21. Bxe3 fxe3 22. Rxe3 Bf7 23. cxd5 Rbc8 24. Re1 Bh6 25. d6 Qc6 26. Bxg6 Qxc1 27. Bxf7+ Rxf7 28. Qg4+ Qg5 29. Qd4 Rc1 30. Rxc1 Qxc1+ 31. Kh2 Qf4+ 32. Qxf4 Bxf4+ 33. Kg1 Bxd6 34. Nc3 Re7 35. f3 Re1+ 36. Kf2 Rc1 37. Ne4 Rc2+ 38. Kf1 Bc5 39. Nxc5 Nxc5 40. b4 Nd3 41. a3 Ra2 42. b5 Rxa3 43. Ke2 0-1

[Event "Vlissingen op"]
[Site "Vlissingen"]
[Date "1995.??.??"]
[Round "3"]
[White "Timmer, Jos"]
[Black "Welten, Hans"]
[Result "0-1"]
[ECO "D03"]
[PlyCount "86"]
[EventDate "1995.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. d4 Nf6 2. c3 d5 3. Nf3 g6 4. Bg5 Bg7 5. Nbd2 0-0 6. e3 b6 7. Bd3 Bb7 8. 0-0 Nbd7 9. h3 Ne4 10. Bf4 Ndf6 11. Ne5 Nxd2 12. Qxd2 Nd7 13. Rac1 Rc8 14. Qe2 Nxe5 15. dxe5 c5 16. Rfd1 e6 17. Bh2 Qe7 18. a4 c4 19. Bc2 Qc5 20. h4 Qc6 21. f4 Rfd8 22. Rd4 Qe8 23. Ra1 Bc6 24. g4 Bf8 25. f5 Bc5 26. f6 Bxd4 27. exd4 Rb8 28. Bf4 Rd7 29. h5 b5 30. Bh6 bxa4 31. Bxa4 Bxa4 32. Rxa4 Rdb7 33. Bc1 Qxa4 34. Qd2 Qe8 35. b4 Qf8 36. hxg6 fxg6 37. g5 Qf7 38. Qa2 Rb6 39. Qh2 a5 40. Ba3 axb4 41. Bxb4 Rxb4 42. cxb4 Rxb4 43. Qa2 Qb7 0-1

[Event "Vlissingen op"]
[Site "Vlissingen"]
[Date "1995.??.??"]
[Round "6"]
[White "Welten, Hans"]
[Black "Lammens, Tim"]
[Result "1/2-1/2"]
[ECO "E81"]
[PlyCount "76"]
[EventDate "1995.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 0-0 6. Be3 Nbd7 7. Qd2 c5 8. d5 a6 9. Nh3 Ne5 10. Nf2 Rb8 11. Bh6 Qa5 12. Bxg7 Kxg7 13. f4 Neg4 14. Nxg4 Nxg4 15. Bd3 b5 16. 0-0 bxc4 17. Bxc4 Qb4 18. b3 Bd7 19. h3 Nf6 20. Qe3 Bb5 21. e5 Ng8 22. Be2 Nh6 23. g4 Bxe2 24. Nxe2 c4 25. exd6 exd6 26. Qd4+ Kg8 27. Qxc4 Qxc4 28. bxc4 Rfe8 29. Nd4 Re4 30. Nc6 Rb2 31. Rfe1 Rxc4 32. Rab1 Rxa2 33. Rb8+ Kg7 34. Ne7 Rcc2 35. g5 Rg2+ 36. Kh1 Rh2+ 37. Kg1 Rhg2+ 38. Kh1 Rh2+ 1/2-1/2

[Event "Vlissingen op"]
[Site "Vlissingen"]
[Date "1995.??.??"]
[Round "4"]
[White "Welten, Hans"]
[Black "Monte, Peter"]
[Result "0-1"]
[ECO "A97"]
[BlackElo "2190"]
[PlyCount "84"]
[EventDate "1995.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. d4 e6 2. g3 f5 3. Bg2 Nf6 4. Nf3 Be7 5. 0-0 0-0 6. c4 d6 7. Nc3 Qe8 8. Re1 Ne4 9. Qc2 Qg6 10. Be3 Nxc3 11. Qxc3 Nc6 12. b4 Bf6 13. b5 Nd8 14. c5 Re8 15. Rac1 e5 16. cxd6 cxd6 17. dxe5 dxe5 18. Red1 f4 19. Bc5 Nf7 20. Qa3 e4 21. Nd2 e3 22. fxe3 fxg3 23. Qd3 Qh5 24. hxg3 Bg4 25. Nf3 Rad8 26. Bd4 Ne5 27. Qb3+ Be6 28. Qb1 b6 29. Bxe5 Rxd1+ 30. Rxd1 Bxe5 31. Kf2 Qf7 32. Rh1 h6 33. a3 Bd6 34. Qd3 Bc5 35. Rh4 Bf5 36. Qc4 Rxe3 37. Qxf7+ Kxf7 38. Kf1 Rxa3 39. Bh3 Bxh3+ 40. Rxh3 Rb3 41. Rh5 Rxb5 42. Rf5+ Ke7 0-1

[Event "Vlissingen op"]
[Site "Vlissingen"]
[Date "1995.??.??"]
[Round "2"]
[White "Welten, Hans"]
[Black "Nieuwelink, Kees"]
[Result "0-1"]
[ECO "C45"]
[BlackElo "2225"]
[PlyCount "66"]
[EventDate "1995.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nf6 5. Nxc6 bxc6 6. e5 Qe7 7. Qe2 Nd5 8. c4 Nb6 9. b3 g6 10. Bb2 Bg7 11. Nd2 0-0 12. g3 Re8 13. f4 d6 14. Bg2 Bd7 15. Nf3 dxe5 16. fxe5 Qb4+ 17. Kf2 Rab8 18. Rac1 Na4 19. Ba1 Nc5 20. Rhd1 Bh6 21. Rc3 f6 22. Rxd7 Nxd7 23. e6 Qc5+ 24. Kf1 Qf5 25. e7 Ne5 26. Kg1 Rxe7 27. Qb2 Rd8 28. h3 Nd3 29. Qa3 Re2 30. b4 Be3+ 31. Kh1 Rxg2 32. Kxg2 Ne1+ 33. Kh2 Rd2+ 0-1

[Event "Alkmaar ACCOM op"]
[Site "Alkmaar"]
[Date "1989.??.??"]
[Round "5"]
[White "Buter, Andre"]
[Black "Welten, Hans"]
[Result "1-0"]
[ECO "B76"]
[PlyCount "71"]
[EventDate "1989.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 d6 2. Nf3 c5 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 0-0 8. Qd2 Nc6 9. 0-0-0 Bd7 10. h4 h5 11. Be2 Ne5 12. Bh6 a6 13. Bxg7 Kxg7 14. g4 b5 15. Rdg1 Rh8 16. gxh5 Nxh5 17. f4 Nc4 18. Bxc4 bxc4 19. f5 e5 20. Nf3 Bc6 21. fxg6 fxg6 22. Ng5 Qe7 23. Nd5 Bxd5 24. Qxd5 Nf4 25. Qxc4 Rhc8 26. Qf1 Rab8 27. Rg3 Qb7 28. Rb3 Qc6 29. Qd1 Rxb3 30. axb3 Qb6 31. Kb1 Rh8 32. Qg4 Qc6 33. Rd1 Rc8 34. c3 Qb6 35. Qd7+ Kh6 36. Qh7# 1-0

[Event "Alkmaar ACCOM op"]
[Site "Alkmaar"]
[Date "1989.??.??"]
[Round "7"]
[White "Keesman, Karel"]
[Black "Welten, Hans"]
[Result "0-1"]
[ECO "D97"]
[PlyCount "64"]
[EventDate "1989.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[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. Qb3 dxc4 5. Qxc4 Bg7 6. Nf3 0-0 7. e4 c6 8. Be2 b5 9. Qd3 a5 10. Be3 b4 11. Na4 Ba6 12. Qc2 Bxe2 13. Kxe2 Nbd7 14. Rhd1 Qc8 15. Rac1 Qa6+ 16. Ke1 Rac8 17. h3 Rfd8 18. Nd2 e5 19. Nb3 exd4 20. Bxd4 Nxe4 21. Bxg7 Kxg7 22. Rxd7 Re8 23. Rd3 Ng3+ 24. Kd1 Re2 25. Qxe2 Nxe2 26. Kxe2 Re8+ 27. Kd2 Qc8 28. Nac5 Qf5 29. Rf1 Qg5+ 30. Re3 Rxe3 31. fxe3 Qxg2+ 32. Ke1 Qxb2 0-1

[Event "Alkmaar ACCOM op"]
[Site "Alkmaar"]
[Date "1989.??.??"]
[Round "1"]
[White "Meringa, Jan"]
[Black "Welten, Hans"]
[Result "1/2-1/2"]
[ECO "D87"]
[PlyCount "73"]
[EventDate "1989.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[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. e4 Nxc3 6. bxc3 Bg7 7. Bc4 c5 8. Ne2 Nc6 9. Be3 0-0 10. 0-0 Qc7 11. Rc1 Rd8 12. d5 e6 13. a4 Ne5 14. Bf4 exd5 15. Bxd5 Qe7 16. Qd2 Nc4 17. Qa2 Nd6 18. f3 Be6 19. c4 Bxd5 20. cxd5 Rac8 21. Rfe1 Be5 22. Be3 Ne8 23. Qd2 f6 24. Qa2 Bd6 25. Nc3 a6 26. Ne2 Nc7 27. Qc2 Ne8 28. Nf4 Ng7 29. Nd3 b6 30. Qb2 c4 31. Nf2 Ba3 32. Qxb6 Bxc1 33. Rxc1 Qd6 34. Qb2 Kf7 35. Ng4 Rb8 36. Qc3 Re8 37. Bd4 1/2-1/2

[Event "Alkmaar ACCOM op"]
[Site "Alkmaar"]
[Date "1989.??.??"]
[Round "2"]
[White "Welten, Hans"]
[Black "Bosma, Bartele"]
[Result "1/2-1/2"]
[ECO "C45"]
[PlyCount "74"]
[EventDate "1989.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 d5 5. Bb5 dxe4 6. 0-0 Bd7 7. Nc3 Nf6 8. Bg5 Be7 9. Bxc6 bxc6 10. Bxf6 Bxf6 11. Nxe4 0-0 12. c3 Re8 13. Re1 Qe7 14. Nf3 Be6 15. Qa4 Bd5 16. Nxf6+ Qxf6 17. Qg4 Be6 18. Qg3 Re7 19. Nd4 Bd5 20. Re3 Rae8 21. Rae1 Rxe3 22. Rxe3 Rxe3 23. Qxe3 Qd8 24. h3 h6 25. Qg3 Qd6 26. Qe3 Qd7 27. b3 a5 28. c4 Be6 29. Nf3 a4 30. Qe1 axb3 31. axb3 c5 32. Qd2 Qe7 33. Qe3 Qd6 34. Nd2 f5 35. Nf3 g5 36. Ne1 f4 37. Qe4 Bf7 1/2-1/2

[Event "Alkmaar ACCOM op"]
[Site "Alkmaar"]
[Date "1989.??.??"]
[Round "3"]
[White "Welten, Hans"]
[Black "Kuijper, Bas"]
[Result "1-0"]
[ECO "C45"]
[PlyCount "97"]
[EventDate "1989.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Be3 Qf6 6. c3 Nxd4 7. cxd4 Bb4+ 8. Nc3 Qc6 9. Qc2 Nf6 10. Bd3 d5 11. e5 Bxc3+ 12. bxc3 Ng8 13. Rb1 a6 14. 0-0 h6 15. f4 Ne7 16. f5 f6 17. e6 b5 18. a4 bxa4 19. Rb4 a3 20. Ra1 g6 21. fxg6 Qxe6 22. Re1 Bd7 23. Qf2 f5 24. Bg5 a2 25. Bxe7 a1Q 26. Rxa1 Qxg6 27. Re1 Kf7 28. Bh4 Be6 29. Rb7 Rhc8 30. Qf4 Kg8 31. Qe5 Re8 32. Qg3 Qxg3 33. Bxg3 a5 34. Rxc7 a4 35. Ra1 a3 36. Rb7 Ra5 37. Rb3 a2 38. Rb2 Rea8 39. Bd6 Kf7 40. Bb4 R5a7 41. Bc2 f4 42. Bb3 Rg8 43. Rbxa2 Rxa2 44. Rxa2 h5 45. Ra7+ Kf6 46. Kf2 Kg5 47. Bc2 Kh6 48. Rh7+ Kg5 49. Be7+ 1-0

[Event "Alkmaar ACCOM op"]
[Site "Alkmaar"]
[Date "1989.??.??"]
[Round "6"]
[White "Welten, Hans"]
[Black "Suurmond, B."]
[Result "0-1"]
[ECO "C45"]
[PlyCount "82"]
[EventDate "1989.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nxd4 5. Qxd4 Qf6 6. e5 Qc6 7. Nc3 a6 8. Be3 Ne7 9. Bd3 Qe6 10. Be4 Nc6 11. Bxc6 Qxc6 12. 0-0 b6 13. Rad1 Bb7 14. Qd5 0-0-0 15. f3 Qg6 16. Qc4 Kb8 17. Nd5 Qc6 18. Qb3 Bc5 19. Kh1 Bxe3 20. Nxe3 f6 21. Nc4 Qe6 22. Rfe1 Rhe8 23. Qc3 Qf5 24. exf6 gxf6 25. Nd2 Rg8 26. Nf1 h5 27. Re3 Qg5 28. g3 h4 29. Kg2 f5 30. Qe5 d6 31. Qe7 Bxf3+ 32. Kxf3 Qg4+ 33. Kf2 Qxd1 34. Qxh4 Qxc2+ 35. Re2 Qc5+ 36. Kg2 Qd5+ 37. Kf2 Rde8 38. Ne3 Qxa2 39. Rc2 Qb3 40. Re2 Rh8 41. Qf6 Rxh2+ 0-1

[Event "Alkmaar ACCOM op"]
[Site "Alkmaar"]
[Date "1989.??.??"]
[Round "4"]
[White "Zeeman, C."]
[Black "Welten, Hans"]
[Result "0-1"]
[ECO "B70"]
[PlyCount "80"]
[EventDate "1989.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. d4 Nf6 2. g3 g6 3. Bg2 Bg7 4. e4 d6 5. Nc3 0-0 6. Nf3 c5 7. h3 cxd4 8. Nxd4 Nfd7 9. Be3 Nc6 10. Qd2 Nde5 11. b3 Nd7 12. Nxc6 bxc6 13. Bd4 Ba6 14. Bxg7 Kxg7 15. Qd4+ Kg8 16. 0-0-0 Qb6 17. f4 Rab8 18. Qxb6 axb6 19. e5 d5 20. Rhe1 e6 21. g4 Rbe8 22. Ne4 Rd8 23. Nd6 Nc5 24. c4 Nb7 25. cxd5 exd5 26. Bxd5 cxd5 27. Rxd5 Nxd6 28. exd6 Rd7 29. Re7 Rfd8 30. Rxd7 Rxd7 31. Kd2 f6 32. Ke3 Kf7 33. b4 g5 34. Rd2 Ke8 35. Kf2 Rd8 36. Kg3 Kd7 37. h4 h6 38. hxg5 hxg5 39. a3 Rc8 40. a4 Rc3+ 0-1

[Event "Haarlem ACCOM op2"]
[Site "Haarlem"]
[Date "1988.??.??"]
[Round "3"]
[White "Buter, Andre"]
[Black "Welten, Hans"]
[Result "1/2-1/2"]
[ECO "B25"]
[PlyCount "63"]
[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 g6 3. g3 Bg7 4. Bg2 d6 5. d3 e6 6. f4 Ne7 7. Nf3 Nbc6 8. 0-0 0-0 9. Be3 Rb8 10. Rb1 b5 11. Qd2 a5 12. a3 Qc7 13. d4 cxd4 14. Nxd4 Nxd4 15. Bxd4 Ba6 16. Bxg7 Kxg7 17. b4 Rfd8 18. Ne2 axb4 19. axb4 Bb7 20. c3 Ra8 21. Ra1 Kg8 22. Qe3 d5 23. e5 Nf5 24. Qd2 Qb6+ 25. Nd4 Ra4 26. Rxa4 bxa4 27. Ra1 Ra8 28. Ra3 Ba6 29. Bf1 Bb5 30. Bxb5 Nxd4 31. Qxd4 Qxb5 32. Kf2 1/2-1/2

[Event "Haarlem ACCOM op2"]
[Site "Haarlem"]
[Date "1988.??.??"]
[Round "2"]
[White "Temming, Jan"]
[Black "Welten, Hans"]
[Result "1/2-1/2"]
[ECO "B73"]
[PlyCount "76"]
[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. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. Be2 Nc6 8. 0-0 0-0 9. f4 Qb6 10. Na4 Qa5 11. Nxc6 bxc6 12. Nc3 Qb4 13. Qd3 Qxb2 14. Rab1 Qa3 15. Nd5 Qxd3 16. Nxe7+ Kh8 17. cxd3 Ba6 18. Kf2 Bb5 19. Rfc1 a6 20. Nxc6 Rfe8 21. Nb4 Nd7 22. Rc7 f5 23. exf5 gxf5 24. Rbc1 Nc5 25. Bxc5 dxc5 26. Nd5 Bd4+ 27. Kf1 Re6 28. Re7 Re8 29. Rxe8+ Rxe8 30. Rb1 Bc6 31. Bf3 Bb5 32. Rd1 Kg7 33. Nc7 Re7 34. Nxb5 axb5 35. a3 Ra7 36. Bc6 Rxa3 37. Bxb5 Ra1 38. Rxa1 Bxa1 1/2-1/2

[Event "Haarlem ACCOM op2"]
[Site "Haarlem"]
[Date "1988.??.??"]
[Round "1"]
[White "Welten, Hans"]
[Black "De Groot, N."]
[Result "0-1"]
[ECO "E61"]
[PlyCount "40"]
[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. d4 Nf6 2. c4 c5 3. e3 d6 4. Nc3 Nbd7 5. Bd3 a6 6. Nf3 g6 7. 0-0 Bg7 8. d5 0-0 9. e4 Ng4 10. h3 Nge5 11. Nxe5 Nxe5 12. f4 Nxd3 13. Qxd3 b5 14. cxb5 axb5 15. Nxb5 Qb6 16. Kh1 Ba6 17. a4 Bxb5 18. Qb3 Rfb8 19. Rf2 Bxa4 20. Qf3 Bd1 0-1

[Event "Haarlem ACCOM op2"]
[Site "Haarlem"]
[Date "1988.??.??"]
[Round "5"]
[White "Welten, Hans"]
[Black "Plooijer, Johan"]
[Result "1/2-1/2"]
[ECO "E76"]
[PlyCount "72"]
[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. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 0-0 6. Nf3 Bg4 7. Be2 c5 8. Be3 Qa5 9. 0-0 Bxf3 10. Bxf3 cxd4 11. Bxd4 Nc6 12. Be3 Rfd8 13. a3 Qc7 14. Rc1 e6 15. Qe2 a6 16. Qf2 Qe7 17. Kh1 Nd7 18. b4 Rac8 19. Rfd1 Ncb8 20. Na4 Nc6 21. Nc3 h5 22. Na4 Bh6 23. c5 dxc5 24. Nxc5 Nxc5 25. Bxc5 Qf6 26. g3 Rxd1+ 27. Bxd1 Qd8 28. Bb3 Qd3 29. Bc2 Qd8 30. Rd1 Qe8 31. Bb3 Bf8 32. Bxf8 Qxf8 33. Rd7 b5 34. Qa2 Ra8 35. Rd2 Nd4 36. Bd1 Qd6 1/2-1/2

[Event "Haarlem ACCOM op2"]
[Site "Haarlem"]
[Date "1988.??.??"]
[Round "4"]
[White "Welten, Hans"]
[Black "Strik, Aart"]
[Result "0-1"]
[ECO "D02"]
[PlyCount "76"]
[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. d4 c5 2. Nf3 Nf6 3. Nc3 d5 4. Bf4 Nc6 5. e3 a6 6. dxc5 Bf5 7. Bd3 Bg4 8. Be2 Bf5 9. 0-0 e6 10. Nd4 Bxc5 11. Nxf5 exf5 12. Bf3 Ne7 13. Be5 Nd7 14. Bxg7 Rg8 15. Bh6 Nf6 16. Bf4 Ne4 17. Qd3 Qd7 18. Rad1 Rd8 19. Ne2 Ng6 20. Qb3 Nh4 21. Bxe4 fxe4 22. Ng3 Qc6 23. c4 d4 24. exd4 e3 25. f3 Bd6 26. Qxe3+ Kd7 27. Bxd6 Qxd6 28. Qc3 f5 29. Rd2 Qg6 30. Qc2 Rdf8 31. Re1 Qg7 32. c5 f4 33. Ne4 Nxf3+ 34. Kh1 Nxe1 35. c6+ bxc6 36. Nc5+ Kd6 37. Ne4+ Kc7 38. Nc5 Nxc2 0-1

[Event "Haarlem ACCOM op"]
[Site "Haarlem"]
[Date "1987.??.??"]
[Round "7"]
[White "Appel, Dirk BA"]
[Black "Welten, Hans"]
[Result "1/2-1/2"]
[ECO "B08"]
[PlyCount "106"]
[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 d6 2. d4 Nf6 3. Nc3 g6 4. Nf3 Bg7 5. Be2 0-0 6. 0-0 c6 7. a4 a5 8. Bg5 Qc7 9. Qd2 Na6 10. Rad1 Nb4 11. Bh6 Bg4 12. Bxg7 Kxg7 13. h3 Bxf3 14. Bxf3 Rad8 15. Ne2 e5 16. c3 Na6 17. Ng3 Qe7 18. Qg5 Kh8 19. Bg4 Nd5 20. Qh6 Nf4 21. Nh1 f5 22. exf5 gxf5 23. Bf3 Rf6 24. Qh4 Rg8 25. dxe5 dxe5 26. Ng3 Qg7 27. Rd7 Qg6 28. Rxh7+ Qxh7 29. Qxf6+ Qg7 30. Qxf5 Rf8 31. Qg4 Qh6 32. Rd1 Nc5 33. Nf5 Qh7 34. Nd6 Rg8 35. Qf5 Nxh3+ 36. Kf1 Qxf5 37. Nxf5 Nf4 38. b4 axb4 39. cxb4 Nxa4 40. Rd7 Nc3 41. Rxb7 e4 42. g3 exf3 43. gxf4 Rf8 44. Ne7 Ra8 45. Kg1 Ne2+ 46. Kh2 Ra1 47. Nxc6 Rf1 48. Ne5 Rxf2+ 49. Kh3 Rg2 50. Nxf3 Rg3+ 51. Kh4 Rxf3 52. f5 Rxf5 53. Kg4 Re5 1/2-1/2

[Event "Haarlem ACCOM op"]
[Site "Haarlem"]
[Date "1987.??.??"]
[Round "2"]
[White "De Roda Husman, Juan"]
[Black "Welten, Hans"]
[Result "1-0"]
[ECO "A88"]
[PlyCount "79"]
[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 f5 2. Nf3 Nf6 3. g3 g6 4. Bg2 Bg7 5. 0-0 0-0 6. c4 c6 7. Nc3 d6 8. d5 Na6 9. dxc6 bxc6 10. Nd4 Bd7 11. Nxc6 Bxc6 12. Bxc6 Rb8 13. Bg2 Nc5 14. Qc2 e6 15. b3 Qb6 16. Bb2 Ng4 17. Rad1 f4 18. Nb5 Rbd8 19. Bxg7 Kxg7 20. Qc3+ Kg8 21. Qd4 e5 22. Qd5+ Kg7 23. Qc6 fxg3 24. hxg3 Qxc6 25. Bxc6 Rf6 26. Nc7 Kh6 27. Bf3 Kg5 28. Nd5 Rf7 29. b4 Ne6 30. Nc3 h5 31. Ne4+ Kh6 32. Nxd6 Rfd7 33. c5 Nd4 34. Kg2 Rb8 35. Bxg4 hxg4 36. e3 Nf3 37. Nf5+ gxf5 38. Rxd7 Kg6 39. c6 Rh8 40. Rh1 1-0

[Event "Haarlem ACCOM op"]
[Site "Haarlem"]
[Date "1987.??.??"]
[Round "4"]
[White "Kayser, Eddy"]
[Black "Welten, Hans"]
[Result "1-0"]
[ECO "B08"]
[PlyCount "83"]
[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 d6 2. d4 Nf6 3. Nc3 g6 4. Nf3 Bg7 5. h3 c6 6. a4 Nbd7 7. Be3 Qc7 8. Qd2 a6 9. Bc4 e5 10. dxe5 Nxe5 11. Nxe5 dxe5 12. a5 c5 13. 0-0 0-0 14. f4 Be6 15. Be2 Rfd8 16. Qe1 Bh6 17. Qh4 Bg7 18. f5 gxf5 19. Bg5 Nxe4 20. Bxd8 Qxd8 21. Qxd8+ Rxd8 22. Nxe4 fxe4 23. Rad1 Rd4 24. c3 Rxd1 25. Rxd1 f5 26. Rd8+ Kf7 27. Rb8 Bd5 28. Rc8 Bf8 29. c4 Bc6 30. Bh5+ Kg7 31. Be8 Bxe8 32. Rxe8 Bd6 33. Rd8 Be7 34. Rd7 Kf6 35. Rxb7 e3 36. Rb6+ Kg5 37. Rxa6 Kf4 38. Kf1 Ke4 39. Re6 Bh4 40. a6 Kd3 41. Rxe5 Bg3 42. Re8 1-0

[Event "Haarlem ACCOM op"]
[Site "Haarlem"]
[Date "1987.??.??"]
[Round "5"]
[White "Seewald, Ralph"]
[Black "Welten, Hans"]
[Result "1-0"]
[ECO "B06"]
[PlyCount "155"]
[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 d6 2. Nc3 Nf6 3. d4 g6 4. f3 c6 5. a4 Bg7 6. Be3 0-0 7. Qd2 Qa5 8. Bd3 b5 9. Nge2 Nbd7 10. 0-0 b4 11. Nd1 Rb8 12. Nc1 Ba6 13. Nb3 Qb6 14. e5 Bxd3 15. exf6 Bxf1 16. fxg7 Rfc8 17. Kxf1 a5 18. Nf2 c5 19. dxc5 Nxc5 20. Nxc5 dxc5 21. Ne4 Qa6+ 22. Qe2 Qxe2+ 23. Kxe2 c4 24. Rd1 Kxg7 25. Rd5 Ra8 26. Bb6 b3 27. c3 Ra6 28. Bd4+ f6 29. Nd2 Kf7 30. Rb5 Rcc6 31. Rb7 f5 32. f4 Re6+ 33. Kf2 Rec6 34. Nf3 Ke6 35. Ng5+ Kd6 36. Nxh7 Ra8 37. Ng5 Rcc8 38. Kf3 Ra6 39. Be5+ Kc6 40. Rxe7 Rd8 41. Bd4 Rxd4 42. cxd4 c3 43. bxc3 b2 44. Re1 Rb6 45. Rb1 Kd5 46. Ke3 Kc4 47. Kd2 Kb3 48. Nf3 Rc6 49. d5 Rxc3 50. Nd4+ Kc4 51. Nb5 Rd3+ 52. Kc2 Rxd5 53. Rxb2 Rd7 54. g3 Rh7 55. h4 Re7 56. Kd2 Rd7+ 57. Ke2 Re7+ 58. Kf2 Re6 59. Na3+ Kc3 60. Rb5 Ra6 61. Kf3 Kd3 62. g4 Re6 63. Rd5+ Kc3 64. gxf5 gxf5 65. Rxa5 Kb4 66. Rxf5 Kxa3 67. a5 Kb4 68. Kg4 Kc4 69. h5 Kd4 70. Kg5 Re2 71. h6 Rg2+ 72. Kf6 Rh2 73. Kg7 Ke4 74. Rf6 Rc2 75. h7 Rg2+ 76. Rg6 Rc2 77. h8Q Rc7+ 78. Kh6 1-0

[Event "Haarlem ACCOM op"]
[Site "Haarlem"]
[Date "1987.??.??"]
[Round "6"]
[White "Welten, Hans"]
[Black "De Waal, Jacobus"]
[Result "1-0"]
[ECO "C07"]
[PlyCount "49"]
[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 e6 2. d4 d5 3. Nd2 c5 4. c3 Nc6 5. Ngf3 dxe4 6. Nxe4 cxd4 7. Nxd4 Nxd4 8. cxd4 Be7 9. Be2 Nf6 10. Nc3 0-0 11. 0-0 Bd7 12. Be3 Bc6 13. Rc1 Qd7 14. Bf3 Bxf3 15. Qxf3 Rfd8 16. Rc2 a6 17. Rfc1 Bd6 18. Bg5 Be7 19. Ne4 Nd5 20. Nc5 Qb5 21. Bxe7 Nxe7 22. Nxb7 Rxd4 23. Nd6 Qd5 24. Qxf7+ Kh8 25. Rc8+ 1-0

[Event "Haarlem ACCOM op"]
[Site "Haarlem"]
[Date "1987.??.??"]
[Round "3"]
[White "Welten, Hans"]
[Black "Smorenberg, Jeroen"]
[Result "0-1"]
[ECO "A65"]
[PlyCount "92"]
[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. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 g6 7. Bb5+ Nbd7 8. Nge2 a6 9. Bxd7+ Nxd7 10. a4 Bg7 11. 0-0 0-0 12. Bf4 Nf6 13. f3 Rb8 14. Qd3 Nh5 15. Be3 Bd7 16. g4 Nf6 17. Bf4 Ne8 18. Qd2 f5 19. g5 Qc8 20. Ng3 b5 21. axb5 axb5 22. Ra7 c4 23. Be3 Rb7 24. Rxb7 Qxb7 25. Bd4 b4 26. Nce2 Bb5 27. Ra1 Ba6 28. exf5 gxf5 29. Nf4 Rf7 30. Re1 Bxd4+ 31. Qxd4 Ng7 32. Ngh5 Qa7 33. Nf6+ Kh8 34. Qxa7 Rxa7 35. N4h5 Bb5 36. Nf4 Ra2 37. Rb1 Ne8 38. Nxe8 Bxe8 39. Kf1 Ba4 40. Rc1 Rxb2 41. Ke1 Bb3 42. h4 Rh2 43. Ne2 c3 44. Kf1 Bc4 45. Re1 c2 46. f4 Rxe2 0-1

[Event "Haarlem ACCOM op"]
[Site "Haarlem"]
[Date "1987.??.??"]
[Round "1"]
[White "Welten, Hans"]
[Black "Spreeuw, Jaap"]
[Result "1/2-1/2"]
[ECO "D32"]
[PlyCount "180"]
[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 d5 2. c4 e6 3. Nc3 c5 4. cxd5 cxd4 5. Qxd4 Nc6 6. Qd1 exd5 7. Nxd5 Nf6 8. Nc3 Qxd1+ 9. Nxd1 Bb4+ 10. Nc3 0-0 11. Nf3 Bg4 12. Bd2 Bxc3 13. Bxc3 Ne4 14. e3 Nxc3 15. bxc3 Rac8 16. Be2 Na5 17. Rc1 Bxf3 18. Bxf3 g6 19. Ke2 Rc7 20. Rc2 Rfc8 21. Rhc1 Nc6 22. Rb2 b6 23. Bxc6 Rxc6 24. Kd3 Rd8+ 25. Kc2 Rdc8 26. Kb3 Rc5 27. Rd2 R8c7 28. Rd3 Rb5+ 29. Kc2 Ra5 30. Ra1 Kg7 31. a4 Kf6 32. Kb3 Rac5 33. Rc1 Ke7 34. Rd4 h5 35. c4 a6 36. Rcd1 b5 37. Re4+ Kf8 38. Rd8+ Kg7 39. cxb5 axb5 40. a5 Rc1 41. a6 Rb1+ 42. Ka2 Rcc1 43. Rd6 b4 44. Rb6 Ra1+ 45. Kb3 Rcb1+ 46. Kc4 b3 47. Kb5 b2 48. Kc4 Rc1+ 49. Kd3 Ra2 50. Reb4 b1Q+ 51. Rxb1 Rxb1 52. Rxb1 Rxa6 53. Ke4 Ra5 54. Kf4 Kg8 55. h4 Kf8 56. Kg3 Ra4 57. f4 Ra3 58. Kf3 Kg7 59. Rb5 Ra1 60. Rb3 Rh1 61. Kg3 Re1 62. Kf3 Rh1 63. g3 Rf1+ 64. Ke2 Ra1 65. e4 Ra7 66. Kf3 Re7 67. f5 f6 68. fxg6 Kxg6 69. Kf4 Re5 70. Rb6 Kg7 71. Rd6 Kg6 72. Rd5 Re8 73. Rb5 Re7 74. Rb8 Re6 75. Rg8+ Kf7 76. Rb8 Kg7 77. Rb4 Kf7 78. Rd4 Kg6 79. Rd5 Re8 80. e5 fxe5+ 81. Rxe5 Rf8+ 82. Ke3 Rf6 83. Rg5+ Kh6 84. Rb5 Ra6 85. Rd5 Rg6 86. Kf4 Rg4+ 87. Kf3 Rg6 88. Rf5 Ra6 89. Re5 Rf6+ 90. Ke4 Rg6 1/2-1/2

[Event "Haarlem ACCOM op2"]
[Site "Haarlem"]
[Date "1986.??.??"]
[Round "2"]
[White "Ariese, Ruud"]
[Black "Welten, Hans"]
[Result "0-1"]
[ECO "B07"]
[PlyCount "72"]
[EventDate "1986.??.??"]
[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 d6 2. d4 Nf6 3. Nc3 g6 4. f3 Bg7 5. Be3 c6 6. Qd2 b5 7. Bh6 0-0 8. Bxg7 Kxg7 9. Bd3 Nbd7 10. Nge2 a5 11. Ng3 Ba6 12. h4 h5 13. Nce2 e5 14. c3 Qb6 15. Nf1 b4 16. Bxa6 Rxa6 17. Ne3 bxc3 18. Qxc3 Rb8 19. Nc4 Qb4 20. 0-0 exd4 21. Qxd4 d5 22. exd5 cxd5 23. Ne3 Qxd4 24. Nxd4 Rxb2 25. Rfd1 a4 26. Ndc2 Rd6 27. Rd4 Nb6 28. Nb4 Re2 29. Nbc2 Rc6 30. Nb4 Rc3 31. Nexd5 Nfxd5 32. Nxd5 Nxd5 33. Rxd5 Rcc2 34. g4 hxg4 35. fxg4 Rg2+ 36. Kf1 Rxg4 0-1

[Event "Haarlem ACCOM op2"]
[Site "Haarlem"]
[Date "1986.??.??"]
[Round "4"]
[White "Hartog, J."]
[Black "Welten, Hans"]
[Result "0-1"]
[ECO "B07"]
[PlyCount "73"]
[EventDate "1986.??.??"]
[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 d6 2. d3 g6 3. Nc3 Bg7 4. Nf3 Nf6 5. h3 0-0 6. Be3 c5 7. e5 Nfd7 8. d4 cxd4 9. Bxd4 Nxe5 10. Bxe5 dxe5 11. Bc4 Nc6 12. Ng5 h6 13. Nge4 a6 14. a3 b6 15. Qf3 Nd4 16. Qd3 Bb7 17. 0-0-0 Kh7 18. f3 b5 19. Ba2 Qb6 20. b4 Rfd8 21. Ne2 Bxe4 22. Qxe4 f5 23. Qd3 Rac8 24. c4 bxc4 25. Bxc4 Qc6 26. Kb1 Qxc4 27. Nxd4 Rxd4 28. Qxc4 Rcxc4 29. Ka2 Rc2+ 30. Kb3 Rxg2 31. Rc1 Rf2 32. Rc3 e4 33. fxe4 Rxe4 34. Rc6 Re3+ 35. Ka4 Ra2 36. Rxa6 Raxa3+ 37. Kb5 0-1

[Event "Haarlem ACCOM op2"]
[Site "Haarlem"]
[Date "1986.??.??"]
[Round "7"]
[White "Leydes, A."]
[Black "Welten, Hans"]
[Result "1/2-1/2"]
[ECO "B08"]
[PlyCount "44"]
[EventDate "1986.??.??"]
[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 d6 2. d4 Nf6 3. Nc3 g6 4. Bg5 Bg7 5. Nf3 c6 6. h3 Qc7 7. Bd3 0-0 8. Qd2 Nbd7 9. Ne2 e5 10. c3 b5 11. 0-0 a5 12. Rac1 Nb6 13. c4 bxc4 14. Bb1 Be6 15. Nc3 a4 16. a3 Rfe8 17. dxe5 dxe5 18. Qe2 Nfd7 19. Nd2 Nc5 20. Be3 Nb3 21. Rcd1 Nd4 22. Qe1 Rad8 1/2-1/2

[Event "Haarlem ACCOM op2"]
[Site "Haarlem"]
[Date "1986.??.??"]
[Round "6"]
[White "Van der Meiden, Dirk"]
[Black "Welten, Hans"]
[Result "1/2-1/2"]
[ECO "B08"]
[PlyCount "84"]
[EventDate "1986.??.??"]
[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 d6 2. d4 Nf6 3. Nc3 g6 4. Nf3 Bg7 5. Be2 0-0 6. 0-0 c6 7. a4 Qc7 8. h3 Nbd7 9. Be3 b6 10. Qd2 Bb7 11. Bh6 e5 12. Bxg7 Kxg7 13. Rfe1 Rfd8 14. Rad1 a6 15. Bf1 Rac8 16. Qe3 b5 17. dxe5 dxe5 18. Bd3 b4 19. Ne2 c5 20. b3 Nb6 21. Nd2 c4 22. Bxc4 Nxc4 23. Nxc4 Bxe4 24. c3 Rxd1 25. Rxd1 Bc2 26. Rc1 Bxb3 27. Nxe5 Nd5 28. Qd4 Qc5 29. Qxc5 Rxc5 30. cxb4 Rxc1+ 31. Nxc1 Bxa4 32. Ned3 Bb5 33. f3 f5 34. Kf2 Kf6 35. Ke1 Ne3 36. Kf2 Nd5 37. h4 Ke6 38. Ke1 Kd6 39. Kd2 Bc4 40. g3 Kc6 41. g4 fxg4 42. fxg4 Bxd3 1/2-1/2

[Event "Haarlem ACCOM op2"]
[Site "Haarlem"]
[Date "1986.??.??"]
[Round "3"]
[White "Welten, Hans"]
[Black "De Waal, Jacobus"]
[Result "1-0"]
[ECO "D46"]
[PlyCount "39"]
[EventDate "1986.??.??"]
[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 d5 2. c4 c6 3. Nc3 e6 4. Nf3 Be7 5. e4 dxe4 6. Nxe4 Nf6 7. Bd3 b6 8. 0-0 0-0 9. Qc2 Nbd7 10. b3 Nxe4 11. Bxe4 Bb7 12. Bxh7+ Kh8 13. Be4 g6 14. Bb2 Kh7 15. Rad1 Qc7 16. Rfe1 Rac8 17. Bxg6+ Kg7 18. d5+ Nf6 19. dxe6 fxe6 20. Ng5 1-0

[Event "Haarlem ACCOM op2"]
[Site "Haarlem"]
[Date "1986.??.??"]
[Round "1"]
[White "Welten, Hans"]
[Black "Kamps, Ronald"]
[Result "0-1"]
[ECO "D10"]
[PlyCount "48"]
[EventDate "1986.??.??"]
[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 d5 2. c4 c6 3. Nc3 Nf6 4. e3 g6 5. Bd3 Bg7 6. Nge2 Nbd7 7. 0-0 0-0 8. cxd5 cxd5 9. Bd2 e6 10. Rc1 a6 11. a4 e5 12. f3 Qb6 13. b4 exd4 14. exd4 Re8 15. Qb3 Ne5 16. a5 Qa7 17. Bb1 Nc4 18. Bg5 Ne3 19. Bxe3 Rxe3 20. Kf2 Bh6 21. Nxd5 Rxb3 22. Nxf6+ Kf8 23. Rc7 Be3+ 24. Kg3 Qb8 0-1

[Event "Haarlem ACCOM op2"]
[Site "Haarlem"]
[Date "1986.??.??"]
[Round "5"]
[White "Welten, Hans"]
[Black "Van Egmond, Joost"]
[Result "0-1"]
[ECO "E24"]
[PlyCount "56"]
[EventDate "1986.??.??"]
[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. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. f3 Qa5 7. Bd2 d6 8. e4 e5 9. Bd3 Nc6 10. Ne2 Qc7 11. Be3 b6 12. 0-0 Bd7 13. Qc2 Ne7 14. a4 Ng6 15. f4 Be6 16. fxe5 dxe5 17. d5 Bd7 18. Ng3 Nf4 19. Qd2 Nxd3 20. Qxd3 Ng8 21. Nh5 g6 22. Nf6+ Nxf6 23. Rxf6 h6 24. Raf1 Rh7 25. Qd2 Bxa4 26. Qf2 0-0-0 27. Rxf7 Rd7 28. Rf8+ Kb7 0-1

[Event "Alkmaar ACCOM op-A"]
[Site "Alkmaar"]
[Date "1985.??.??"]
[Round "2"]
[White "Adema, Ruud"]
[Black "Welten, Hans"]
[Result "0-1"]
[ECO "E69"]
[PlyCount "116"]
[EventDate "1985.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 g6 3. g3 Bg7 4. Bg2 0-0 5. d4 d6 6. Nf3 c6 7. 0-0 Qc7 8. e4 e5 9. h3 exd4 10. Nxd4 Re8 11. Be3 Nbd7 12. Qc2 Nb6 13. b3 Bd7 14. Rad1 Rad8 15. Kh2 Kh8 16. Bf4 Nh5 17. c5 Nc8 18. cxd6 Qb8 19. Bc1 Nxd6 20. f4 Nc8 21. e5 Bf8 22. Ne4 Be7 23. g4 Ng7 24. Kh1 c5 25. Ne2 Bc6 26. Bb2 Nb6 27. Rxd8 Rxd8 28. f5 Bf8 29. Ng5 Bxg2+ 30. Kxg2 Qc7 31. e6 fxe6 32. Nxe6 Qc6+ 33. Kg1 Re8 34. N2f4 Kg8 35. Qc3 Re7 36. f6 Rxe6 37. fxg7 Be7 38. Nxe6 Qxe6 39. Qf3 Nd7 40. Rd1 Ne5 41. Rd8+ Kxg7 42. Qxb7 Kh6 43. Bc1+ g5 44. Re8 Ng6 45. Qf3 Qe1+ 46. Qf1 Qg3+ 47. Kh1 Qd6 48. Qf5 Qc6+ 49. Kg1 Qxe8 50. Qe6 Qb8 51. Kg2 Qd6 52. Qe2 Nf4+ 53. Bxf4 gxf4 54. h4 Bxh4 55. Qe4 Qg6 56. Kf3 Bg5 57. Qe5 Bf6 58. Qxf4+ Bg5 0-1

[Event "Alkmaar ACCOM op-A"]
[Site "Alkmaar"]
[Date "1985.??.??"]
[Round "4"]
[White "Van der Berg, Eddy"]
[Black "Welten, Hans"]
[Result "1/2-1/2"]
[ECO "B07"]
[PlyCount "96"]
[EventDate "1985.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Be2 Bg7 5. Be3 0-0 6. f3 c6 7. Qd2 Qc7 8. g4 e5 9. h4 h5 10. g5 Nh7 11. d5 Nd7 12. dxc6 bxc6 13. 0-0-0 Bb7 14. Qxd6 Qxd6 15. Rxd6 Rfd8 16. Na4 Bf8 17. Rd2 Be7 18. Nh3 Ndf8 19. Rxd8 Bxd8 20. Bc4 Bc8 21. f4 Bxh3 22. Rxh3 exf4 23. Bxf4 Ne6 24. Bxe6 fxe6 25. Nc5 Nf8 26. e5 Bb6 27. Ne4 Kf7 28. Rd3 Rd8 29. Rxd8 Bxd8 30. Nf6 Bb6 31. Bg3 Ke7 32. Kd2 Nd7 33. Nxd7 Kxd7 34. Ke2 Bd4 35. c3 Bb6 36. Kf3 c5 37. Bf2 Kc6 38. Ke4 Kb5 39. b3 Kc6 40. Be3 Kb5 41. Kd3 Bc7 42. Ke4 Bb6 43. a3 Kc6 44. Bf2 Kb5 45. Kd3 Bc7 46. Bg3 Bb6 47. a4+ Kc6 48. Kc4 a5 1/2-1/2

[Event "Alkmaar ACCOM op-A"]
[Site "Alkmaar"]
[Date "1985.??.??"]
[Round "6"]
[White "Van der Bruinhorst, G."]
[Black "Welten, Hans"]
[Result "0-1"]
[ECO "B07"]
[PlyCount "101"]
[EventDate "1985.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Bc4 Bg7 5. Nge2 0-0 6. Ng3 c5 7. d5 a6 8. a4 Qa5 9. Bd2 Qc7 10. Qc1 e6 11. 0-0 exd5 12. Nxd5 Nxd5 13. exd5 Nd7 14. Ra3 Nf6 15. Bh6 Bd7 16. Bxg7 Kxg7 17. a5 Bb5 18. Qf4 Rfe8 19. Rd1 Re7 20. h4 h5 21. Ba2 c4 22. Qd4 Re5 23. Qc3 Rae8 24. b4 Qc8 25. Rd4 Re1+ 26. Kh2 Kg8 27. f3 R8e3 28. Qxe3 Rxe3 29. Rxe3 Qc7 30. c3 b6 31. axb6 Qxb6 32. Re2 Qb7 33. Red2 Qc7 34. Nf1 a5 35. bxa5 Qxa5 36. Bxc4 Bxc4 37. Rxc4 Nxd5 38. Rd3 Nb6 39. Rcd4 Qe5+ 40. Kg1 Nc8 41. Re3 Qb5 42. Rb4 Qa6 43. Re8+ Kg7 44. Rd4 Qc6 45. Re3 Qc5 46. Nd2 d5 47. Red3 Ne7 48. Kh2 Qc7+ 49. Kh3 Nf5 50. f4 Nxd4 51. cxd4 0-1

[Event "Alkmaar ACCOM op-A"]
[Site "Alkmaar"]
[Date "1985.??.??"]
[Round "7"]
[White "Welten, Hans"]
[Black "Duijs, Peter"]
[Result "0-1"]
[ECO "B14"]
[PlyCount "110"]
[EventDate "1985.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 c5 4. e3 cxd4 5. exd4 d5 6. c5 Nc6 7. Nf3 b6 8. Bb5 Bd7 9. Bxc6 Bxc6 10. b4 bxc5 11. bxc5 Be7 12. 0-0 0-0 13. Bf4 Nd7 14. Rc1 Bf6 15. a4 Qa5 16. Qb3 a6 17. Rfe1 Ra7 18. Ne5 Bxe5 19. Bxe5 Rb7 20. Qd1 Nxe5 21. Rxe5 Rb4 22. Ra1 Rc4 23. Ne2 Rxa4 24. Rxa4 Bxa4 25. Qb1 Qd2 26. Qc1 Qxc1+ 27. Nxc1 Rb8 28. Re1 Rb1 29. f4 Kf8 30. Kf2 Rb4 31. Ke3 a5 32. Re2 Bb5 33. Rd2 a4 34. Rc2 Ke7 35. Rc3 Kd7 36. Nd3 Bxd3 37. Kxd3 Kc6 38. Ra3 f6 39. Rc3 Rb5 40. Rc1 e5 41. fxe5 fxe5 42. dxe5 Rxc5 43. Re1 Kd7 44. Kd4 Ra5 45. e6+ Ke7 46. Ke5 a3 47. Rc1 a2 48. Ra1 g6 49. g4 d4+ 50. Kxd4 Kxe6 51. Ke4 Ra4+ 52. Ke3 Ke5 53. g5 Ra3+ 54. Ke2 Rh3 55. Rh1 Rxh2+ 0-1

[Event "Alkmaar ACCOM op-A"]
[Site "Alkmaar"]
[Date "1985.??.??"]
[Round "5"]
[White "Welten, Hans"]
[Black "Ruiter, N."]
[Result "0-1"]
[ECO "A50"]
[PlyCount "80"]
[EventDate "1985.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 b6 4. Bg5 Be7 5. e4 Nxe4 6. Bxe7 Nxc3 7. Bxd8 Nxd1 8. Bxc7 Nxb2 9. Bd6 Ba6 10. Rc1 Nc6 11. Nf3 Rc8 12. c5 Bxf1 13. Kxf1 bxc5 14. dxc5 f6 15. Ke2 Na5 16. Nd2 Nb7 17. Rb1 Nxd6 18. cxd6 Rc2 19. Rhc1 Rxc1 20. Rxc1 0-0 21. Rc7 Rd8 22. Rxa7 e5 23. a4 Kf7 24. a5 Ke6 25. Rb7 Na4 26. Nc4 Kd5 27. Nb6+ Nxb6 28. Rxb6 Ra8 29. Rb2 Rxa5 30. Rd2+ Ke6 31. f3 Ra6 32. Ke3 Rxd6 33. Rb2 Ra6 34. h4 Ra4 35. g4 Ra3+ 36. Ke2 Ra4 37. Kf2 h5 38. Rb6+ Ke7 39. Kg3 hxg4 40. fxg4 e4 0-1

[Event "Alkmaar ACCOM op-A"]
[Site "Alkmaar"]
[Date "1985.??.??"]
[Round "1"]
[White "Welten, Hans"]
[Black "Van der Sluijs, A."]
[Result "1-0"]
[ECO "E10"]
[PlyCount "109"]
[EventDate "1985.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 c5 4. e3 g6 5. Nf3 Bg7 6. Be2 0-0 7. 0-0 d6 8. Qc2 Nc6 9. b3 b6 10. Ba3 Re8 11. Rad1 Qc7 12. Rd2 Ba6 13. Rfd1 Rad8 14. dxc5 dxc5 15. Ng5 Bb7 16. Nb5 Rxd2 17. Rxd2 Qe7 18. Nd6 Rd8 19. Nxb7 Rxd2 20. Qxd2 Qxb7 21. Bf3 h6 22. Nxe6 fxe6 23. Qd6 Qd7 24. Qxd7 Nxd7 25. Bxc6 Nf6 26. Bb2 Kf7 27. Be5 Ng4 28. Bb8 Be5 29. Bxe5 Nxe5 30. Be4 g5 31. Kf1 Kf6 32. Ke2 Nf7 33. f4 Nd6 34. Bc2 Nf7 35. Kf3 Nd8 36. g4 Nf7 37. h3 Nd6 38. f5 exf5 39. gxf5 Nxf5 40. Ke4 Ng3+ 41. Kd5 Nf1 42. Kc6 Nxe3 43. Bd3 Ke5 44. Kb7 h5 45. Be2 g4 46. hxg4 hxg4 47. Bxg4 Nxg4 48. Kxa7 Kd4 49. Kxb6 Nf6 50. a4 Nd7+ 51. Kc7 Nf6 52. a5 Ke5 53. a6 Ne8+ 54. Kc6 Nd6 55. a7 1-0

[Event "Alkmaar ACCOM op-A"]
[Site "Alkmaar"]
[Date "1985.??.??"]
[Round "3"]
[White "Welten, Hans"]
[Black "Zweers, T."]
[Result "1/2-1/2"]
[ECO "A51"]
[PlyCount "90"]
[EventDate "1985.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e5 3. d5 Bc5 4. Nc3 d6 5. e4 Ng4 6. Nh3 0-0 7. f3 Ne3 8. Bxe3 Bxe3 9. Qe2 Bh6 10. g4 Qf6 11. Rg1 Qh4+ 12. Qf2 Qxf2+ 13. Kxf2 Bd2 14. Bd3 Na6 15. Ke2 Bxc3 16. bxc3 Nc5 17. Nf2 b6 18. Bc2 Ba6 19. Bb3 b5 20. cxb5 Bxb5+ 21. c4 Nxb3 22. axb3 Bd7 23. Ra6 Rfb8 24. Rga1 Kf8 25. Rxa7 Rxa7 26. Rxa7 Rxb3 27. Rxc7 Ke8 28. Nd1 Kd8 29. Ra7 Rb4 30. Kd3 Rb3+ 31. Nc3 g6 32. Ra1 Rb2 33. Ra2 Rb3 34. Ra8+ Bc8 35. Ra7 Bd7 36. Ra5 Rb2 37. Ra2 Rb3 38. Rc2 h5 39. gxh5 gxh5 40. h4 f5 41. Rf2 fxe4+ 42. fxe4 Bg4 43. Kc2 Rb4 44. Kd3 Rb3 45. Kc2 Rb4 1/2-1/2

