[Event "NED-chT Promotion Liga 2b"]
[Site "Netherlands"]
[Date "2021.06.19"]
[Round "2.2"]
[White "Klomp, Robert"]
[Black "Van Os, Marcel"]
[Result "1-0"]
[ECO "A36"]
[WhiteElo "2116"]
[BlackElo "2079"]
[PlyCount "89"]
[EventDate "2021.06.05"]
[EventType "team-k.o."]
[EventRounds "2"]
[EventCountry "NED"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]
[WhiteTeam "WLC"]
[BlackTeam "Utrecht Oud Zuylen"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. c4 c5 2. g3 g6 3. Bg2 Bg7 4. Nc3 Nc6 5. e4 d6 6. Nge2 e6 7. 0-0 Nge7 8. d3 0-0 9. Be3 Nd4 10. Qd2 Re8 11. Bh6 Bh8 12. Nxd4 cxd4 13. Ne2 a5 14. f4 Qb6 15. g4 d5 16. f5 exf5 17. exd5 fxg4 18. Ng3 Nf5 19. Nxf5 Bxf5 20. c5 Qb4 21. Qxb4 axb4 22. d6 Rac8 23. Rxf5 gxf5 24. d7 Red8 25. dxc8Q Rxc8 26. Re1 Bg7 27. Bf4 Bf8 28. Re5 Rxc5 29. Rxc5 Bxc5 30. Bxb7 Kg7 31. Kg2 Kf6 32. Bd5 Be7 33. Kg3 Bc5 34. Bc4 Be7 35. Bc1 Bd6+ 36. Bf4 Be7 37. Ba6 Bc5 38. Bc8 Kg6 39. Be5 Kg5 40. h4+ gxh3 41. Kxh3 f6 42. Bc7 h5 43. Kg3 Bf8 44. Bf4+ Kg6 45. Bd7 1-0

[Event "NED-chT Promotion Liga 2b"]
[Site "Netherlands"]
[Date "2021.06.05"]
[Round "1.1"]
[White "Van Os, Marcel"]
[Black "Bosma, Jan"]
[Result "1-0"]
[ECO "C86"]
[WhiteElo "2079"]
[BlackElo "1895"]
[PlyCount "77"]
[EventDate "2021.06.05"]
[EventType "team-k.o."]
[EventRounds "2"]
[EventCountry "NED"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]
[WhiteTeam "Utrecht Oud Zuylen"]
[BlackTeam "Delft"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. Qe2 b5 6. Bb3 Be7 7. c3 0-0 8. 0-0 d6 9. Rd1 Bg4 10. d4 Qc8 11. Bg5 Rb8 12. a3 h6 13. Bh4 Nh5 14. Bg3 Bf6 15. d5 Ne7 16. Nbd2 Ng6 17. Bc2 Bg5 18. b3 Nhf4 19. Qf1 f5 20. exf5 Rxf5 21. Be4 Nh5 22. h3 Nxg3 23. fxg3 Be3+ 24. Kh2 Rf6 25. Qd3 Bxd2 26. hxg4 Bxc3 27. Qxc3 Qxg4 28. Qd3 Ne7 29. Rac1 Rbf8 30. Rxc7 Nf5 31. Bxf5 Rxf5 32. Nh4 e4 33. Qc3 Rg5 34. Qe1 e3 35. Rd3 Qe4 36. Qxe3 Qxe3 37. Rxe3 Rxd5 38. Ng6 Rd8 39. Ne7+ 1-0

[Event "Leiden Noteboom Memorial 67th"]
[Site "Leiden"]
[Date "2007.02.16"]
[Round "1"]
[White "Van Os, Marcel"]
[Black "Van den Doel, Erik"]
[Result "0-1"]
[ECO "B44"]
[BlackElo "2581"]
[PlyCount "96"]
[EventDate "2007.02.16"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "CBM 116 Extra"]
[Source "ChessBase"]
[SourceDate "2007.03.07"]
[SourceVersion "1"]
[SourceVersionDate "2007.03.07"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. g3 d5 6. Bg2 Qb6 7. Nb3 dxe4 8. Bxe4 Nf6 9. Bg2 Bb4+ 10. c3 Be7 11. 0-0 0-0 12. Be3 Qc7 13. N1d2 e5 14. f3 b6 15. Ne4 Ba6 16. Rf2 Rad8 17. Nxf6+ Bxf6 18. Qe1 Ne7 19. Rd1 Nf5 20. Bc1 Bc4 21. Rxd8 Rxd8 22. Rd2 Re8 23. Rd1 g6 24. Qf2 a5 25. Bf1 Be6 26. Bb5 Rc8 27. Kg2 Nd6 28. Bd3 a4 29. Nd2 Bxa2 30. Bc2 b5 31. Ne4 Nxe4 32. fxe4 Bg7 33. Be3 h5 34. Rd2 Be6 35. Bd3 Qc6 36. Kg1 Bf8 37. Qe2 Bc5 38. Bxc5 Qxc5+ 39. Qf2 Qc6 40. Qe2 Bg4 41. Qe3 a3 42. bxa3 Qxc3 43. Rc2 Qxa3 44. Qd2 Qa1+ 45. Kg2 Rd8 46. Qe3 Qa3 47. Rd2 Qc3 48. Kf2 b4 0-1

