[Event "NED-ch26 sf-B"]
[Site "Leeuwarden"]
[Date "1970.??.??"]
[Round "?"]
[White "Andriessen, Wim"]
[Black "Greben, Jan Meint"]
[Result "1-0"]
[ECO "E69"]
[PlyCount "87"]
[EventDate "1970.03.27"]
[EventType "tourn"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. c4 Nf6 2. g3 g6 3. Bg2 Bg7 4. Nc3 0-0 5. Nf3 d6 6. 0-0 e5 7. d4 Nbd7 8. e4 c6 9. Rb1 a5 10. h3 Re8 11. d5 Nc5 12. Ne1 Qc7 13. Nd3 Nfd7 14. Nxc5 Nxc5 15. Be3 Bd7 16. Qd2 Rad8 17. Rfd1 Bc8 18. b3 Rf8 19. Na4 Nxa4 20. bxa4 c5 21. Qb2 f5 22. Qb6 Qe7 23. exf5 gxf5 24. f4 Kh8 25. Re1 Rg8 26. fxe5 Bxe5 27. Bf4 Qg7 28. Bxe5 dxe5 29. Rb3 f4 30. Qxc5 Rdf8 31. Qf2 fxg3 32. Qe2 Rf2 33. Qxe5 Qxe5 34. Rxe5 Rc2 35. Re1 Rxc4 36. Rbe3 Bd7 37. Re7 Bxa4 38. Rxb7 Rd4 39. Ra7 Rf8 40. Be4 Re8 41. Rxh7+ Kg8 42. Rh4 Bc2 43. Bh7+ Kf7 44. Rf1+ 1-0

[Event "NED-ch26 sf-B"]
[Site "Leeuwarden"]
[Date "1970.??.??"]
[Round "?"]
[White "Greben, Jan Meint"]
[Black "Ooiman, Wim"]
[Result "1-0"]
[ECO "B98"]
[PlyCount "67"]
[EventDate "1970.03.27"]
[EventType "tourn"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 h6 8. Bh4 Be7 9. Qf3 Qc7 10. 0-0-0 Nc6 11. f5 Nxd4 12. Rxd4 Bd7 13. Bc4 e5 14. Bxf6 Bxf6 15. Nd5 Bg5+ 16. Kb1 Qc5 17. Rd3 Qxc4 18. Rc3 Qd4 19. Nc7+ Ke7 20. Rd1 Qa7 21. Qd3 Qd4 22. Qf3 Qa7 23. f6+ Bxf6 24. Nd5+ Ke8 25. Nxf6+ gxf6 26. Qxf6 Rh7 27. Qxd6 f6 28. Qxf6 Rf7 29. Qh8+ Ke7 30. Qxe5+ Kf8 31. Qd6+ Kg8 32. Rg3+ Kh8 33. Qxh6+ Rh7 34. Qf6+ 1-0

[Event "NED U20-ch"]
[Site "Rotterdam"]
[Date "1964.??.??"]
[Round "?"]
[White "Greben, Jan Meint"]
[Black "Damen, LJA"]
[Result "0-1"]
[ECO "B78"]
[PlyCount "94"]
[EventDate "1964.??.??"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[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. Bc4 Nc6 9. Qd2 Na5 10. Bb3 Bd7 11. 0-0-0 Nxb3+ 12. cxb3 a5 13. Ndb5 Bxb5 14. Nxb5 a4 15. bxa4 Rxa4 16. Kb1 Nd7 17. Bd4 Bxd4 18. Nxd4 Qb6 19. Ne2 Rfa8 20. Nc3 R4a5 21. h4 Ne5 22. h5 Nc4 23. Qc1 Rxa2 24. Nxa2 Qb3 25. Qc3 Qxa2+ 26. Kc2 Ra3 27. Qb4 Ne3+ 28. Kd2 Rb3 29. Qd4 Nxd1 30. Rxd1 Qxb2+ 31. Qxb2 Rxb2+ 32. Ke3 Rxg2 33. hxg6 hxg6 34. Rb1 Kg7 35. Rxb7 Kf6 36. f4 Ra2 37. Kf3 Ra4 38. Rb6 Rd4 39. Ke3 Rd1 40. Ke2 Rd4 41. Ke3 Ra4 42. e5+ Kf5 43. exd6 Re4+ 44. Kf3 Rxf4+ 45. Kg3 exd6 46. Rb5+ d5 47. Rxd5+ Ke6 0-1

