[Event "NED-ch M corr"]
[Site "Netherlands"]
[Date "1994.??.??"]
[Round "?"]
[White "Lens, Jan F"]
[Black "Rekers, PJM"]
[Result "0-1"]
[ECO "A48"]
[PlyCount "44"]
[EventDate "1994.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "NED"]
[SourceTitle "Corr 2002"]
[Source "ChessBase"]
[SourceDate "2002.05.23"]
[SourceVersion "1"]
[SourceVersionDate "2002.05.23"]
[SourceQuality "1"]

1. Nf3 d6 2. d4 g6 3. c3 Nf6 4. Bg5 Bg7 5. Nbd2 0-0 6. e4 h6 7. Bh4 c5 8. h3 cxd4 9. cxd4 Qb6 10. Rb1 Nc6 11. d5 Nd4 12. Bd3 e6 13. dxe6 Bxe6 14. b3 Rfc8 15. 0-0 d5 16. exd5 Nxd5 17. Qe1 Nc3 18. Rb2 Re8 19. Qe3 Nd5 20. Nc4 Nxe3 21. Nxb6 Nxf3+ 22. gxf3 axb6 0-1

[Event "NED-ch H corr"]
[Site "Netherlands"]
[Date "1993.??.??"]
[Round "?"]
[White "Dol, G."]
[Black "Lens, Jan F"]
[Result "1-0"]
[ECO "D45"]
[PlyCount "61"]
[EventDate "1993.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "NED"]
[SourceTitle "Corr 2002"]
[Source "ChessBase"]
[SourceDate "2002.05.23"]
[SourceVersion "1"]
[SourceVersionDate "2002.05.23"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. e3 Be7 5. Nf3 c6 6. Be2 0-0 7. 0-0 Nbd7 8. a3 Qc7 9. Nd2 b6 10. f4 Bb7 11. Nf3 Rad8 12. Qe1 Rfe8 13. Bd2 a6 14. b4 Bf8 15. c5 b5 16. Bd3 Be7 17. h3 Ra8 18. g4 h6 19. g5 hxg5 20. Nxg5 Nf8 21. Qe2 N8h7 22. h4 g6 23. Nxh7 Nxh7 24. h5 g5 25. e4 f6 26. exd5 exd5 27. Qe6+ Kg7 28. h6+ Kxh6 29. Qh3+ Kg7 30. Qxh7+ Kf8 31. Bg6 1-0

[Event "NED theme01 corr"]
[Site "Netherlands"]
[Date "1993.??.??"]
[Round "?"]
[White "Kruis, Rob P"]
[Black "Lens, Jan F"]
[Result "1/2-1/2"]
[ECO "A82"]
[PlyCount "40"]
[EventDate "1993.??.??"]
[EventType "tourn (corr)"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 d6 2. d4 f5 3. exf5 Bxf5 4. Qf3 Qc8 5. Bd3 Bxd3 6. Qxd3 g6 7. Nf3 Na6 8. 0-0 c6 9. c4 Bg7 10. Bd2 Nh6 11. Na3 0-0 12. Rae1 Nf5 13. Qe4 Nc7 14. Nc2 e6 15. Re2 Qd7 16. Ne3 Nxe3 17. Rxe3 Rae8 18. Rfe1 b6 19. b3 e5 20. Qd3 exd4 1/2-1/2

[Event "NED-ch H corr"]
[Site "Netherlands"]
[Date "1993.??.??"]
[Round "?"]
[White "Lens, Jan F"]
[Black "Muller, W."]
[Result "1/2-1/2"]
[ECO "C57"]
[PlyCount "51"]
[EventDate "1993.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "NED"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 b5 6. Bxb5 Qxd5 7. Be2 Bb7 8. f3 Qd4 9. g3 Bc5 10. Rf1 h6 11. Nh3 0-0 12. Nc3 Ne7 13. d3 Nfd5 14. Nxd5 Qxd5 15. c3 Rad8 16. Nf2 f5 17. f4 Ng6 18. fxe5 Bxf2+ 19. Rxf2 Nxe5 20. Qb3 Rfe8 21. Qxd5+ Rxd5 22. Kd2 Nxd3 23. Bxd3 Ba6 24. Rxf5 Rxd3+ 25. Kc2 Rd6 26. Rf2 1/2-1/2

[Event "NED-ch H corr"]
[Site "Netherlands"]
[Date "1993.??.??"]
[Round "?"]
[White "Lens, Jan F"]
[Black "Van Leuken, Alex"]
[Result "0-1"]
[ECO "C05"]
[PlyCount "46"]
[EventDate "1993.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "NED"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 Nf6 4. e5 Nfd7 5. c4 c5 6. cxd5 exd5 7. f4 cxd4 8. Ngf3 Nc6 9. Nb3 Qb6 10. Nfxd4 Bb4+ 11. Kf2 f6 12. exf6 Nxf6 13. h3 Ne4+ 14. Kf3 Ne5+ 15. fxe5 0-0+ 16. Bf4 Rxf4+ 17. Kxf4 Qh6+ 18. Kf3 Qh4 19. Ke3 Qg5+ 20. Kf3 Qxe5 21. Ne2 Bg4+ 22. Kxg4 Rf8 23. h4 Nf2# 0-1

[Event "NED-ch H corr"]
[Site "Netherlands"]
[Date "1993.??.??"]
[Round "?"]
[White "Lens, Jan F"]
[Black "Wynia, Meindert"]
[Result "0-1"]
[ECO "C50"]
[PlyCount "64"]
[EventDate "1993.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "NED"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. 0-0 Nf6 5. Nc3 d6 6. h3 0-0 7. d3 Na5 8. Bb5 c6 9. Ba4 b5 10. Bb3 Nxb3 11. axb3 a5 12. Bg5 Bb7 13. Re1 h6 14. Bh4 Re8 15. g4 Qb6 16. Qd2 Re6 17. Bg3 Nd7 18. Nh4 d5 19. Nf5 d4 20. Ne2 Bb4 21. c3 Bf8 22. Kh2 c5 23. f3 Ree8 24. Rg1 Qe6 25. c4 a4 26. Qc2 axb3 27. Qxb3 Ba6 28. Rgc1 bxc4 29. dxc4 Bxc4 30. Qd1 Rxa1 31. Rxa1 Rb8 32. Qd2 Qb6 0-1

[Event "NED-ch H corr"]
[Site "Netherlands"]
[Date "1993.??.??"]
[Round "?"]
[White "Lier, Walter"]
[Black "Lens, Jan F"]
[Result "1/2-1/2"]
[ECO "B90"]
[PlyCount "40"]
[EventDate "1993.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "NED"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bc4 a6 7. Nxc6 bxc6 8. e5 dxe5 9. Qxd8+ Kxd8 10. Bxf7 e6 11. Bg5 Ke7 12. Bh5 h6 13. Bxf6+ gxf6 14. 0-0-0 f5 15. Rd2 Kf6 16. Na4 Rb8 17. Rd8 Bg7 18. Rd6 Rb4 19. Nc5 Rb6 20. Rhd1 Ke7 1/2-1/2

[Event "NED-ch H corr"]
[Site "Netherlands"]
[Date "1993.??.??"]
[Round "?"]
[White "Mors, Pieter CM"]
[Black "Lens, Jan F"]
[Result "1-0"]
[ECO "B77"]
[PlyCount "47"]
[EventDate "1993.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "NED"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. Nge2 g6 4. d4 cxd4 5. Nxd4 Bg7 6. Be3 d6 7. Bc4 Nf6 8. f3 0-0 9. Qd2 Nd7 10. h4 Nde5 11. Bb3 Na5 12. Qe2 Nxb3 13. axb3 h5 14. g4 hxg4 15. f4 Nc6 16. 0-0-0 Qa5 17. Kb1 a6 18. h5 gxh5 19. Nd5 Qd8 20. Rxh5 Nxd4 21. Bxd4 Bxd4 22. Rxd4 f6 23. f5 Rf7 24. Qh2 1-0

[Event "NED-ch H corr"]
[Site "Netherlands"]
[Date "1993.??.??"]
[Round "?"]
[White "Reuvekamp, E."]
[Black "Lens, Jan F"]
[Result "1-0"]
[ECO "C15"]
[PlyCount "43"]
[EventDate "1993.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "NED"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. a3 Bf8 5. Nf3 Nf6 6. Bg5 Be7 7. e5 Nfd7 8. h4 b6 9. Rh3 c5 10. Bxe7 Qxe7 11. Nb5 Nf8 12. Nd6+ Kd7 13. c4 dxc4 14. dxc5 Kc7 15. cxb6+ axb6 16. Rc1 Ra5 17. b4 Rd5 18. Rxc4+ Nc6 19. Rxc6+ Kxc6 20. Nd4+ Kd7 21. Qa4+ Kd8 22. Nc6+ 1-0

[Event "NED-ch H corr"]
[Site "Netherlands"]
[Date "1990.??.??"]
[Round "?"]
[White "Van Tienhoven, Richard M"]
[Black "Lens, Jan F"]
[Result "1-0"]
[ECO "A23"]
[PlyCount "43"]
[EventDate "1990.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "NED"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 Nf6 3. g3 c6 4. d4 exd4 5. Qxd4 Na6 6. Bg5 Be7 7. Bg2 0-0 8. e4 h6 9. Bf4 Nc7 10. Bd6 Ne6 11. Qd2 Ne8 12. Bxe7 Qxe7 13. Nge2 f5 14. exf5 Rxf5 15. f4 Qc5 16. Qd3 Rf8 17. 0-0-0 a6 18. Ne4 Qa5 19. Kb1 b5 20. Nd4 Nxd4 21. Qxd4 Rb8 22. c5 1-0

[Event "NED-ch H corr"]
[Site "Netherlands"]
[Date "1989.??.??"]
[Round "?"]
[White "Goebel, Wolfgang"]
[Black "Lens, Jan F"]
[Result "1-0"]
[ECO "C34"]
[PlyCount "71"]
[EventDate "1989.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "NED"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 e5 2. f4 exf4 3. Nf3 d6 4. Bc4 Be6 5. Bxe6 fxe6 6. d4 Qd7 7. Bxf4 Na6 8. Nc3 c6 9. 0-0 Ne7 10. Qd2 Ng6 11. Bg3 Be7 12. a3 0-0 13. Ne2 Nc7 14. Qd3 Rad8 15. c4 c5 16. e5 dxe5 17. Nxe5 Nxe5 18. Rxf8+ Rxf8 19. Bxe5 Bd6 20. Bxd6 Qxd6 21. Rd1 Rd8 22. Qe4 Qb6 23. Rd2 cxd4 24. Qe5 d3+ 25. c5 Qc6 26. Nf4 Rf8 27. Rxd3 Rf5 28. Rd8+ Kf7 29. Nd3 Ke7 30. Rd6 Qxc5+ 31. Nxc5 Rxe5 32. Rd7+ Ke8 33. Rxc7 Kd8 34. Nd3 Rd5 35. Rc3 e5 36. Kf1 1-0

[Event "NED-ch H corr"]
[Site "Netherlands"]
[Date "1989.??.??"]
[Round "?"]
[White "Hanssen, Frans WG"]
[Black "Lens, Jan F"]
[Result "1-0"]
[ECO "D53"]
[PlyCount "43"]
[EventDate "1989.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "NED"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. Bg5 Be7 5. Nf3 Nbd7 6. e3 a6 7. cxd5 exd5 8. Qc2 Nf8 9. Bd3 Ng6 10. h4 c6 11. 0-0-0 Qa5 12. Ne5 Nxe5 13. dxe5 Ng4 14. Bf4 b5 15. Nxd5 Bb7 16. Nxe7 Kxe7 17. Qc5+ Ke8 18. Bf5 Nxf2 19. Bd7+ Kd8 20. Bxc6+ Nxd1 21. Rxd1+ Kc8 22. Bxb7+ 1-0

[Event "NED-Cup corr"]
[Site "Netherlands"]
[Date "1989.??.??"]
[Round "?"]
[White "Sprinkhuizen, Arno PJ"]
[Black "Lens, Jan F"]
[Result "1-0"]
[ECO "B21"]
[PlyCount "41"]
[EventDate "1989.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "NED"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 Nc6 5. Nf3 g6 6. Bc4 Bg7 7. e5 Nh6 8. Bf4 0-0 9. Qe2 Qa5 10. 0-0 Nf5 11. Rfd1 e6 12. a3 h6 13. g4 Nfe7 14. b4 Qd8 15. g5 Nf5 16. Ne4 Qb6 17. Nf6+ Bxf6 18. gxf6 Kh7 19. Bd3 Ncd4 20. Nxd4 Nxd4 21. Qh5 1-0

[Event "corr"]
[Site "corr"]
[Date "1987.??.??"]
[Round "?"]
[White "De Vos"]
[Black "Lens, Jan F"]
[Result "1-0"]
[ECO "D06"]
[PlyCount "43"]
[EventDate "1987.??.??"]
[EventType "tourn (corr)"]
[EventRounds "12"]
[SourceTitle "Corr 2000"]
[Source "ChessBase"]
[SourceDate "2000.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. Nf3 d5 2. c4 Nf6 3. cxd5 Nxd5 4. e4 Nb6 5. d4 Bg4 6. Be2 e6 7. 0-0 Be7 8. Be3 0-0 9. Ne5 Bxe2 10. Qxe2 N8d7 11. Nc3 Nxe5 12. dxe5 c6 13. Qg4 Kh8 14. Rad1 Qc7 15. f4 Nc4 16. Bc1 Qb6+ 17. Kh1 Nxb2 18. Rd7 Rfe8 19. Qe2 Ba3 20. Nb1 Rad8 21. Rxd8 Rxd8 22. Nxa3 1-0

[Event "NED-ch H322 corr"]
[Site "Netherlands"]
[Date "1987.??.??"]
[Round "?"]
[White "Hotting, Arend"]
[Black "Lens, Jan F"]
[Result "1-0"]
[ECO "B99"]
[PlyCount "41"]
[EventDate "1987.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "NED"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Be7 8. Qf3 Qc7 9. 0-0-0 Nbd7 10. g4 b5 11. Bxf6 Nxf6 12. g5 Nd7 13. f5 Bxg5+ 14. Kb1 Nf6 15. Rg1 Bh6 16. fxe6 0-0 17. Qxf6 Kh8 18. Qf5 Bb7 19. Nd5 Qa5 20. e7 Rg8 21. Nb3 1-0

[Event "NED-ch H corr"]
[Site "Netherlands"]
[Date "1987.??.??"]
[Round "?"]
[White "Lens, Jan F"]
[Black "Kersten, Uwe"]
[Result "0-1"]
[ECO "B03"]
[PlyCount "44"]
[EventDate "1987.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "NED"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. f4 dxe5 6. fxe5 Bf5 7. Nf3 e6 8. Nc3 Be7 9. Be3 Nc6 10. Be2 0-0 11. 0-0 f6 12. exf6 Bxf6 13. Qd2 Qe7 14. Rfd1 Rad8 15. Qe1 Kh8 16. Rd2 e5 17. d5 Nd4 18. Nxd4 exd4 19. Bxd4 Bg5 20. Rdd1 Bc2 21. Bd3 Qxe1+ 22. Rxe1 Bxd3 0-1

[Event "EU-ch M corr"]
[Site "ICCF corr"]
[Date "1985.??.??"]
[Round "?"]
[White "Engel, Berthold"]
[Black "Lens, Jan F"]
[Result "1-0"]
[ECO "B01"]
[PlyCount "93"]
[EventDate "1985.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Nf6 3. d4 Nxd5 4. c4 Nb6 5. Nf3 Bg4 6. c5 Bxf3 7. Qxf3 Nd5 8. Qb3 Nc6 9. Qxb7 Nxd4 10. Bb5+ Nxb5 11. Qc6+ Qd7 12. Qxa8+ Qd8 13. Qxd8+ Kxd8 14. Be3 c6 15. a4 Nxe3 16. fxe3 Nc7 17. Nc3 e5 18. Rd1+ Kc8 19. Ne4 Nd5 20. Ke2 f5 21. Nd6+ Bxd6 22. cxd6 Kd7 23. Rhf1 f4 24. exf4 exf4 25. Rd3 Re8+ 26. Kd2 g5 27. Rh3 a5 28. Rxh7+ Kxd6 29. Rh6+ Kc7 30. Rc1 Nb4 31. Rc5 Rd8+ 32. Ke2 g4 33. Rf6 Re8+ 34. Kf1 Re4 35. b3 Re3 36. Rc4 Rxb3 37. Rfxf4 Rb1+ 38. Kf2 Nd3+ 39. Kg3 Nxf4 40. Rxf4 Kd6 41. Kxg4 Rb4 42. h4 Ke5 43. g3 c5 44. h5 Rb8 45. Kg5 Rb6 46. Rc4 Rc6 47. h6 1-0

[Event "corr"]
[Site "corr"]
[Date "1985.??.??"]
[Round "?"]
[White "Lens, Jan F"]
[Black "De Groot, Adrianus Dingeman"]
[Result "0-1"]
[ECO "A48"]
[PlyCount "76"]
[EventDate "1985.09.20"]
[EventType "match (corr)"]
[EventRounds "10"]
[SourceTitle "Corr 2000"]
[Source "ChessBase"]
[SourceDate "2000.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. Bg5 Bg7 4. h3 d5 5. e3 Ne4 6. Bf4 c5 7. c3 Qb6 8. Qc1 Nc6 9. Nbd2 Nxd2 10. Qxd2 Bf5 11. Be2 0-0 12. 0-0 Rfd8 13. dxc5 Qxc5 14. Bg3 e5 15. Rfd1 f6 16. Kf1 Bh6 17. Qe1 a5 18. Kg1 a4 19. Nh2 Na5 20. Ng4 Bg7 21. Nh2 h5 22. Nf3 Kh7 23. Nh4 Be6 24. Nf3 Nc4 25. b3 axb3 26. axb3 Nd6 27. Rac1 Ne4 28. Bh2 Bh6 29. Bd3 Nxf2 30. Kxf2 Bf5 31. Bxf5 gxf5 32. Nh4 Bxe3+ 33. Qxe3 Ra2+ 34. Kf3 e4+ 35. Kf4 Qd6+ 36. Kxf5 Qxh2 37. g3 Rf2+ 38. Ke6 Qxh3+ 0-1

[Event "NED-ch M corr"]
[Site "Netherlands"]
[Date "1985.??.??"]
[Round "?"]
[White "Lens, Jan F"]
[Black "Elzerman, J."]
[Result "0-1"]
[ECO "B72"]
[PlyCount "60"]
[EventDate "1985.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "NED"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Be2 0-0 6. Nf3 c5 7. Be3 cxd4 8. Nxd4 Nc6 9. Nb3 a6 10. Bf3 Na5 11. Nxa5 Qxa5 12. 0-0 Be6 13. Nd5 Nxd5 14. exd5 Bd7 15. c3 b5 16. a3 Qc7 17. Qe2 Rab8 18. g4 b4 19. axb4 Bb5 20. Qe1 Bxf1 21. Qxf1 Ra8 22. Rxa6 Qb7 23. Rb6 Qa7 24. Kf2 Qa2 25. Qe1 Ra3 26. Be2 Rb3 27. c4 Rxb2 28. Qd1 Qxc4 29. Kf3 Qc3 30. b5 Rb3 0-1

[Event "NED-ch M corr"]
[Site "Netherlands"]
[Date "1985.??.??"]
[Round "?"]
[White "Lens, Jan F"]
[Black "Van der Kleij, Carel"]
[Result "1-0"]
[ECO "C07"]
[PlyCount "78"]
[EventDate "1985.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "NED"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 c5 4. Ngf3 Nf6 5. exd5 Nxd5 6. c3 cxd4 7. Nxd4 Be7 8. N2f3 0-0 9. a3 Bf6 10. Bd3 Nd7 11. 0-0 Nc5 12. Bc2 Bd7 13. c4 Ne7 14. Bg5 Ng6 15. Be3 Qc7 16. b4 Na6 17. Nd2 Rad8 18. g3 Nb8 19. Rb1 Nc6 20. Nb5 Qb8 21. Ne4 Be7 22. Qe2 f5 23. Nc5 Bc8 24. Rbd1 a6 25. Nd4 Nxd4 26. Bxd4 e5 27. Be3 Qc7 28. Na4 Qc6 29. b5 Qe6 30. Bc5 Bxc5 31. Nxc5 Qe7 32. Qe3 f4 33. gxf4 Nxf4 34. Ne4 Bf5 35. Rxd8 Qxd8 36. Kh1 Qh4 37. f3 Nh3 38. Qe2 Nf4 39. Qf2 Qe7 1-0

[Event "NED-ch M corr"]
[Site "Netherlands"]
[Date "1984.??.??"]
[Round "?"]
[White "Lens, Jan F"]
[Black "Leeners, Henk JM"]
[Result "0-1"]
[ECO "C57"]
[PlyCount "38"]
[EventDate "1984.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "NED"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 b5 6. Bxb5 Qxd5 7. Bxc6+ Qxc6 8. Qf3 e4 9. Qb3 Bc5 10. Qxf7+ Kd8 11. 0-0 h6 12. Qxg7 Rg8 13. Qxh6 Bb7 14. Kh1 e3 15. f3 e2 16. Re1 Ne4 17. fxe4 Qxh6 18. Nf7+ Kd7 19. Nxh6 Raf8 0-1

[Event "Eur.Mansch.vorrunde DDR  corr"]
[Site "DDR corr"]
[Date "1984.??.??"]
[Round "?"]
[White "Lens, Jan F"]
[Black "Pietruske, Siegfried"]
[Result "0-1"]
[ECO "A10"]
[PlyCount "58"]
[EventDate "1984.??.??"]
[EventType "tourn (corr)"]
[EventCountry "DDR"]
[SourceTitle "Corr 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.24"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.24"]
[SourceQuality "1"]

1. c4 f5 2. g3 Nf6 3. Bg2 e6 4. Nc3 d5 5. cxd5 exd5 6. Nh3 d4 7. Nb1 c6 8. 0-0 Be6 9. Nf4 Bf7 10. d3 Bc5 11. Nd2 Nbd7 12. Nf3 Nd5 13. Nxd5 Bxd5 14. e4 dxe3 15. fxe3 Nf6 16. Nh4 g6 17. Bxd5 Qxd5 18. d4 Bb6 19. Qf3 0-0-0 20. Qxd5 Rxd5 21. Bd2 Re8 22. a4 Ne4 23. Be1 c5 24. Rc1 Kb8 25. a5 Bd8 26. dxc5 Nxc5 27. Rc4 Nd3 28. b4 Rxe3 29. Bd2 Re2 0-1

[Event "NED-ch M corr"]
[Site "Netherlands"]
[Date "1983.??.??"]
[Round "?"]
[White "Lens, Jan F"]
[Black "Den Hamer, Adri M"]
[Result "0-1"]
[ECO "D44"]
[PlyCount "64"]
[EventDate "1983.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "NED"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. c4 e6 2. Nc3 d5 3. d4 Nf6 4. Nf3 c6 5. Bg5 dxc4 6. Ne5 b5 7. a4 Bb4 8. axb5 cxb5 9. f3 Qb6 10. e4 Bb7 11. Kf2 Nbd7 12. Be3 Nxe5 13. dxe5 Bc5 14. Qc1 Nd7 15. b4 Bxe3+ 16. Qxe3 Qxe3+ 17. Kxe3 a6 18. f4 Nb8 19. Be2 Nc6 20. Rab1 0-0-0 21. Rhd1 Rxd1 22. Nxd1 Rd8 23. Nc3 Nd4 24. Rb2 Nxe2 25. Kxe2 Rd3 26. Rc2 Kc7 27. g3 Kb6 28. f5 a5 29. bxa5+ Kxa5 30. fxe6 fxe6 31. Kf2 Kb4 32. Na2+ Kb3 0-1

[Event "EU-ch M corr"]
[Site "ICCF corr"]
[Date "1980.??.??"]
[Round "?"]
[White "Knoll, Herwig"]
[Black "Lens, Jan F"]
[Result "1-0"]
[ECO "B97"]
[PlyCount "69"]
[EventDate "1980.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[SourceTitle "Corr 2000"]
[Source "ChessBase"]
[SourceDate "2000.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Qb6 8. Qd2 Qxb2 9. Rb1 Qa3 10. f5 Nc6 11. fxe6 fxe6 12. Nxc6 bxc6 13. e5 dxe5 14. Bxf6 gxf6 15. Ne4 Be7 16. Be2 h5 17. Rb3 Qa4 18. c4 f5 19. 0-0 fxe4 20. Qd1 Bc5+ 21. Kh1 Bd4 22. Bxh5+ Kd8 23. Rf7 Qxa2 24. Qf1 Bf2 25. Qd1+ Bd4 26. Qf1 Bf2 27. Rb1 Rxh5 28. Rxf2 Qxb1 29. Qxb1 Rf5 30. Qb5 Ke7 31. Rxf5 exf5 32. Qxc6 Be6 33. Qxa8 Bxc4 34. Qc8 Be6 35. Qxa6 1-0

[Event "NED theme corr"]
[Site "Netherlands"]
[Date "1978.??.??"]
[Round "?"]
[White "Besemer, G."]
[Black "Lens, Jan F"]
[Result "0-1"]
[ECO "A82"]
[PlyCount "30"]
[EventDate "1978.??.??"]
[EventType "tourn (corr)"]
[EventRounds "12"]
[EventCountry "NED"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 d6 2. d4 f5 3. Nc3 Nf6 4. Bd3 fxe4 5. Nxe4 Nxe4 6. Bxe4 g6 7. Nf3 d5 8. Bd3 Qd6 9. Ne5 Nc6 10. Bf4 Qb4+ 11. Qd2 Qxd2+ 12. Kxd2 Nxd4 13. Nxg6 hxg6 14. Be5 Rh4 15. Bxc7 Bf5 0-1

[Event "NED theme corr"]
[Site "Netherlands"]
[Date "1978.??.??"]
[Round "?"]
[White "Borst, Johan M"]
[Black "Lens, Jan F"]
[Result "0-1"]
[ECO "A82"]
[PlyCount "40"]
[EventDate "1978.??.??"]
[EventType "tourn (corr)"]
[EventRounds "12"]
[EventCountry "NED"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 d6 2. d4 f5 3. Nc3 Nf6 4. Bd3 fxe4 5. Nxe4 Nxe4 6. Bxe4 g6 7. Nf3 d5 8. Bd3 Qd6 9. h3 Nc6 10. 0-0 Bg7 11. c3 0-0 12. Be3 Bf5 13. Qd2 Bxh3 14. gxh3 Rxf3 15. Kg2 Raf8 16. Be2 R8f7 17. Rad1 Nd8 18. b3 Ne6 19. Rde1 Nf4+ 20. Bxf4 R7xf4 0-1

[Event "NED theme corr"]
[Site "Netherlands"]
[Date "1978.??.??"]
[Round "?"]
[White "Knoek, J."]
[Black "Lens, Jan F"]
[Result "0-1"]
[ECO "A82"]
[PlyCount "40"]
[EventDate "1978.??.??"]
[EventType "tourn (corr)"]
[EventRounds "12"]
[EventCountry "NED"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 d6 2. d4 f5 3. Nc3 Nf6 4. Bd3 fxe4 5. Nxe4 Nxe4 6. Bxe4 g6 7. h4 c6 8. Nh3 Bf5 9. Qf3 Qd7 10. Bxf5 Qxf5 11. Qxf5 gxf5 12. Nf4 Kd7 13. Nd3 Na6 14. b3 Bg7 15. Bb2 Rhg8 16. g3 c5 17. c3 cxd4 18. cxd4 Rac8 19. Kd1 Bf6 20. Rg1 Rg4 0-1

[Event "NED theme corr"]
[Site "Netherlands"]
[Date "1978.??.??"]
[Round "?"]
[White "Lens, Jan F"]
[Black "Besemer, G."]
[Result "1-0"]
[ECO "A82"]
[PlyCount "55"]
[EventDate "1978.??.??"]
[EventType "tourn (corr)"]
[EventRounds "12"]
[EventCountry "NED"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 d6 2. d4 f5 3. Nc3 Nf6 4. exf5 Bxf5 5. Qf3 Bc8 6. Bg5 e6 7. 0-0-0 Be7 8. Nh3 Nc6 9. Bb5 0-0 10. Qg3 Nh5 11. Qh4 Bxg5+ 12. Nxg5 Rf5 13. Nce4 g6 14. Bxc6 bxc6 15. g4 Rf4 16. Qh3 h6 17. gxh5 hxg5 18. hxg6 Rh4 19. Qe3 g4 20. Qf4 Qe7 21. Rhg1 e5 22. dxe5 dxe5 23. Rd8+ Kg7 24. Re8 exf4 25. Rxe7+ Kxg6 26. Rxc7 Rxh2 27. Rxc6+ Kg7 28. Rxc8 1-0

[Event "NED theme corr"]
[Site "Netherlands"]
[Date "1978.??.??"]
[Round "?"]
[White "Lens, Jan F"]
[Black "Borst, Johan M"]
[Result "1-0"]
[ECO "A82"]
[PlyCount "39"]
[EventDate "1978.??.??"]
[EventType "tourn (corr)"]
[EventRounds "12"]
[EventCountry "NED"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 d6 2. d4 f5 3. Nc3 Nf6 4. exf5 Bxf5 5. Qf3 Qc8 6. Bd3 Bxd3 7. Qxd3 Nc6 8. Nf3 Qd7 9. a3 0-0-0 10. 0-0 e6 11. Re1 Re8 12. Bg5 Be7 13. Re2 h6 14. Bxf6 Bxf6 15. Rae1 Nd8 16. Ne4 Ref8 17. c4 g5 18. Nxf6 Rxf6 19. d5 e5 20. c5 1-0

[Event "NED theme corr"]
[Site "Netherlands"]
[Date "1978.??.??"]
[Round "?"]
[White "Lens, Jan F"]
[Black "Knoek, J."]
[Result "1-0"]
[ECO "A82"]
[PlyCount "35"]
[EventDate "1978.??.??"]
[EventType "tourn (corr)"]
[EventRounds "12"]
[EventCountry "NED"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 d6 2. d4 f5 3. Nc3 Nf6 4. exf5 Bxf5 5. Qf3 Qc8 6. Bd3 Bxd3 7. Qxd3 e6 8. Nh3 Qd7 9. 0-0 Nc6 10. d5 exd5 11. Nxd5 Ne5 12. Nxf6+ gxf6 13. Qb3 0-0-0 14. Be3 Kb8 15. f3 Qf7 16. Qxf7 Nxf7 17. Bd4 Bg7 18. Nf4 1-0

[Event "NED theme corr"]
[Site "Netherlands"]
[Date "1978.??.??"]
[Round "?"]
[White "Lens, Jan F"]
[Black "Kruis, Rob P"]
[Result "1-0"]
[ECO "A82"]
[PlyCount "63"]
[EventDate "1978.??.??"]
[EventType "tourn (corr)"]
[EventRounds "12"]
[EventCountry "NED"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 d6 2. d4 f5 3. Nc3 Nf6 4. exf5 Bxf5 5. Qf3 Qc8 6. Bd3 Bg4 7. Qg3 Nc6 8. Be3 e5 9. dxe5 Nxe5 10. Bd4 Nxd3+ 11. Qxd3 Be7 12. f3 Bf5 13. Qd2 0-0 14. Nge2 Qe6 15. 0-0-0 Qc4 16. Qg5 Bd7 17. Nf4 Qf7 18. Qg3 c6 19. Rhe1 b5 20. Rd2 b4 21. Rde2 Bd8 22. Nb1 Qxa2 23. Re7 Bxe7 24. Rxe7 Rf7 25. Bxf6 Bf5 26. Bxg7 Qc4 27. Bf6+ Kf8 28. Rxf7+ Qxf7 29. Nh5 Qd7 30. Nd2 Bg6 31. Bg7+ Kf7 32. Qf4+ 1-0

[Event "NED corr"]
[Site "Netherlands"]
[Date "1978.??.??"]
[Round "?"]
[White "Lens, Jan F"]
[Black "Mus, H."]
[Result "0-1"]
[ECO "A82"]
[PlyCount "80"]
[EventDate "1978.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "NED"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 d6 2. d4 f5 3. Nc3 Nf6 4. Bd3 Nc6 5. exf5 Nxd4 6. g4 h5 7. f3 hxg4 8. fxg4 Qd7 9. h4 Qc6 10. Rh2 Qc5 11. Kf1 b6 12. Bg5 Bb7 13. Rf2 0-0-0 14. Rf4 Kb8 15. Qd2 Re8 16. Na4 Qd5 17. Nxb6 axb6 18. c4 Qh1 19. Rxd4 e5 20. fxe6 Rxe6 21. Bf5 Re5 22. Rd3 Rxf5+ 23. gxf5 Ne4 24. Qe2 Nxg5 25. Qe8+ Bc8 26. hxg5 Rh4 27. Qe2 Rh2 28. Qf3 Bxf5 29. Re3 Bh3+ 30. Qxh3 Rxh3 31. Rxh3 Qe4 32. b3 d5 33. Re1 Qg6 34. cxd5 Bb4 35. Re5 Qb1+ 36. Kg2 Bc5 37. Ne2 Qe1 38. Rf3 Qd2 39. g6 Bd6 40. Re8+ Kb7 0-1

[Event "NED theme corr"]
[Site "Netherlands"]
[Date "1978.??.??"]
[Round "?"]
[White "Lens, Jan F"]
[Black "Van Rikxoort, D."]
[Result "1/2-1/2"]
[ECO "A82"]
[PlyCount "43"]
[EventDate "1978.??.??"]
[EventType "tourn (corr)"]
[EventRounds "12"]
[EventCountry "NED"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 d6 2. d4 f5 3. Nc3 Nf6 4. exf5 Bxf5 5. Qf3 Qc8 6. Bd3 Bxd3 7. Qxd3 Nc6 8. Nf3 e6 9. 0-0 Be7 10. d5 exd5 11. Nxd5 Nxd5 12. Qxd5 Qg4 13. Ng5 Bxg5 14. Bxg5 Rf8 15. Rae1+ Kd7 16. Re4 Qf5 17. Qxf5+ Rxf5 18. h4 Re8 19. Rfe1 Rfe5 20. Rxe5 Rxe5 21. Rxe5 Nxe5 22. f3 1/2-1/2

[Event "NED theme corr"]
[Site "Netherlands"]
[Date "1978.??.??"]
[Round "?"]
[White "Lens, Jan F"]
[Black "Versteeg, Henny"]
[Result "1/2-1/2"]
[ECO "A82"]
[PlyCount "61"]
[EventDate "1978.??.??"]
[EventType "tourn (corr)"]
[EventRounds "12"]
[EventCountry "NED"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 d6 2. d4 f5 3. Nc3 Nf6 4. exf5 Bxf5 5. Qf3 Qc8 6. Bd3 Bxd3 7. Qxd3 c6 8. f3 Na6 9. a3 Qd7 10. Nh3 0-0-0 11. Be3 d5 12. Ng5 e6 13. 0-0-0 h6 14. Nh3 g5 15. Rhe1 Rg8 16. Re2 Nc7 17. Rde1 Bd6 18. g3 Rde8 19. Nf2 Qg7 20. Qd2 Nh5 21. Nd3 b6 22. Ne5 Kb7 23. g4 Nf6 24. h4 Bxe5 25. dxe5 Nd7 26. hxg5 hxg5 27. Bg1 Ref8 28. Qd3 Rh8 29. Nb1 Rh3 30. Nd2 Rf7 31. c4 1/2-1/2

[Event "NED theme corr"]
[Site "Netherlands"]
[Date "1978.??.??"]
[Round "?"]
[White "Van Rikxoort, D."]
[Black "Lens, Jan F"]
[Result "0-1"]
[ECO "A82"]
[PlyCount "66"]
[EventDate "1978.??.??"]
[EventType "tourn (corr)"]
[EventRounds "12"]
[EventCountry "NED"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 d6 2. d4 f5 3. Nc3 Nf6 4. Bd3 fxe4 5. Nxe4 Nxe4 6. Bxe4 g6 7. Nf3 d5 8. Bd3 Qd6 9. Ne5 Nc6 10. Nxc6 Qxc6 11. Qe2 Qf6 12. c3 Bg7 13. 0-0 Bd7 14. Re1 0-0 15. f4 Rf7 16. Bd2 Re8 17. Qe5 Qc6 18. Qe2 Qd6 19. g3 b6 20. b4 c5 21. bxc5 bxc5 22. Be3 c4 23. Bc2 Qa3 24. Qd2 Rb8 25. Qc1 Qxc3 26. Bxg6 Bxd4 27. Bxf7+ Kxf7 28. Bxd4 Qxd4+ 29. Re3 Rb2 30. Qe1 Bg4 31. Kh1 Re2 32. Rxe2 Bf3+ 33. Rg2 Qb2 0-1

[Event "NED theme corr"]
[Site "Netherlands"]
[Date "1978.??.??"]
[Round "?"]
[White "Versteeg, Henny"]
[Black "Lens, Jan F"]
[Result "1/2-1/2"]
[ECO "A82"]
[PlyCount "64"]
[EventDate "1978.??.??"]
[EventType "tourn (corr)"]
[EventRounds "12"]
[EventCountry "NED"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 d6 2. d4 f5 3. Nc3 Nf6 4. exf5 Bxf5 5. Qf3 Qc8 6. Bd3 Bxd3 7. Qxd3 Na6 8. f3 Qd7 9. a3 g6 10. Nh3 Bg7 11. Be3 e6 12. 0-0 c6 13. Rad1 Nc7 14. Ne2 Ncd5 15. Bc1 0-0-0 16. c4 Nc7 17. Be3 Rde8 18. b4 d5 19. c5 e5 20. dxe5 Rxe5 21. Bf4 Ree8 22. Nd4 Ne6 23. Nxe6 Qxe6 24. Bg3 Qe3+ 25. Bf2 Qxd3 26. Rxd3 Nd7 27. f4 Re2 28. Rfd1 Bf6 29. Kf1 Rhe8 30. Ng1 R2e4 31. g3 a5 32. Rb1 axb4 1/2-1/2

[Event "NED-Cup corr"]
[Site "Netherlands"]
[Date "1975.??.??"]
[Round "?"]
[White "Lens, Jan F"]
[Black "Van Oirschot, Cornelis JC"]
[Result "1-0"]
[ECO "C46"]
[PlyCount "45"]
[EventDate "1975.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "NED"]
[SourceTitle "Corr 2000"]
[Source "ChessBase"]
[SourceDate "2000.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 g6 4. d4 exd4 5. Nxd4 Bg7 6. Be3 d6 7. Nb3 Nf6 8. h3 0-0 9. Qd2 Re8 10. f3 Nh5 11. Bg5 Qd7 12. 0-0-0 Ng3 13. Qe1 Nxh1 14. Nc5 dxc5 15. Rxd7 Bxd7 16. Nd5 Be6 17. Nxc7 Bd4 18. Bb5 Bxa2 19. Qxh1 a6 20. Bxc6 bxc6 21. Nxe8 Rxe8 22. c3 Bg7 23. Qd1 1-0

[Event "NED BT corr"]
[Site "Netherlands"]
[Date "1974.??.??"]
[Round "?"]
[White "Lens, Jan F"]
[Black "Peperkamp, A."]
[Result "1-0"]
[ECO "B54"]
[PlyCount "61"]
[EventDate "1974.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "NED"]
[SourceTitle "Corr 2000"]
[Source "ChessBase"]
[SourceDate "2000.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 d6 5. Be3 Nf6 6. Nd2 b5 7. c4 bxc4 8. Bxc4 Bb7 9. Bd3 Nc6 10. Nxc6 Bxc6 11. 0-0 Be7 12. e5 Nd5 13. Qg4 g6 14. Bh6 Rb8 15. a3 Rxb2 16. Ba6 f5 17. exf6 Bxf6 18. Bd3 Bb5 19. Nc4 Rb3 20. Rab1 Rxd3 21. Nxd6+ Ke7 22. Nxb5 g5 23. Bxg5 Rg8 24. Qe4 Rxg5 25. Qxh7+ Rg7 26. Qxd3 Rxg2+ 27. Kh1 Qh8 28. h3 Bh4 29. f4 Rg7 30. Rf3 Qg8 31. Nc3 1-0

[Event "EU-ch M corr"]
[Site "ICCF corr"]
[Date "1970.??.??"]
[Round "?"]
[White "Karlsson, Einar"]
[Black "Lens, Jan F"]
[Result "1-0"]
[ECO "B77"]
[PlyCount "75"]
[EventDate "1970.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[SourceTitle "Corr 2000"]
[Source "ChessBase"]
[SourceDate "2000.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 Nbd7 8. Qd2 a6 9. Bc4 0-0 10. 0-0-0 Ne5 11. Bb3 Qc7 12. Bh6 Nc4 13. Bxc4 Qxc4 14. Bxg7 Kxg7 15. h4 h5 16. g4 e5 17. Nf5+ Bxf5 18. gxf5 Rad8 19. Rhg1 d5 20. exd5 Qxh4 21. fxg6 fxg6 22. Qd3 Qf4+ 23. Kb1 Qh6 24. d6 Rf7 25. Ne4 Nxe4 26. Qxe4 Kh7 27. Qxe5 Qf8 28. Rxg6 Rf5 29. Qe6 Rxf3 30. a3 Re3 31. Qxe3 Kxg6 32. Rg1+ Kh7 33. Qe4+ Kh8 34. Qe5+ Kh7 35. Qxh5+ Qh6 36. Qf5+ Kh8 37. Qe5+ Kh7 38. Qe7+ 1-0

