[Event "corr"]
[Site "corr"]
[Date "1992.??.??"]
[Round "?"]
[White "Clausen, Sigurd"]
[Black "Jensen, N."]
[Result "0-1"]
[ECO "C40"]
[PlyCount "40"]
[EventDate "1992.??.??"]
[EventType "tourn (corr)"]
[EventRounds "12"]
[SourceTitle "Corr 2000"]
[Source "ChessBase"]
[SourceDate "2000.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 d5 3. exd5 Bd6 4. Bb5+ c6 5. dxc6 bxc6 6. Bc4 e4 7. Qe2 Qe7 8. Nd4 Be5 9. c3 Nf6 10. 0-0 c5 11. Bb5+ Kf8 12. Nc6 Bxh2+ 13. Kh1 Qd6 14. d4 Ng4 15. Ne5 Bxe5 16. f3 Qf6 17. g3 Bxg3 18. fxg4 Qh4+ 19. Kg1 Bxg4 20. Qg2 Bh3 0-1

[Event "olm1 qual GP1 B3 corr"]
[Site "ICCA corr"]
[Date "1946.??.??"]
[Round "?"]
[White "Clausen, Sigurd"]
[Black "Klavestad, G."]
[Result "1-0"]
[ECO "C65"]
[PlyCount "85"]
[EventDate "1946.??.??"]
[EventType "team (corr)"]
[EventRounds "7"]
[SourceTitle "Corr 2002"]
[Source "ChessBase"]
[SourceDate "2002.05.23"]
[SourceVersion "1"]
[SourceVersionDate "2002.05.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bb5 Nf6 5. e5 Ne4 6. 0-0 Be7 7. Nxd4 0-0 8. Nf5 d5 9. Nxe7+ Nxe7 10. f3 Nc5 11. b4 a6 12. Be2 Ne6 13. a4 Re8 14. f4 Nc6 15. Ra3 Nf8 16. b5 Ne7 17. bxa6 bxa6 18. Be3 Bd7 19. Bc5 a5 20. Kh1 Rb8 21. Qe1 Ne6 22. Bg1 Rb4 23. Qd2 g6 24. Nc3 c6 25. g4 Ng7 26. Na2 Rb7 27. Nc1 Rb1 28. Rb3 Rxb3 29. Nxb3 Nc8 30. Nxa5 Qh4 31. Bf2 Qh3 32. Rg1 Qa3 33. Nb3 Qe7 34. Nc5 Rd8 35. Rb1 Ne6 36. Nd3 Re8 37. Rb7 h6 38. f5 Ng5 39. f6 Qe6 40. Bd4 Ne4 41. Qxh6 Nxf6 42. Qh4 Nd6 43. Nc5 1-0

[Event "olm1 qual GP1 B3 corr"]
[Site "ICCA corr"]
[Date "1946.??.??"]
[Round "?"]
[White "Clausen, Sigurd"]
[Black "Reilly, Brian Patrick"]
[Result "0-1"]
[ECO "B14"]
[PlyCount "54"]
[EventDate "1946.??.??"]
[EventType "team (corr)"]
[EventRounds "7"]
[SourceTitle "Corr 2002"]
[Source "ChessBase"]
[SourceDate "2002.05.23"]
[SourceVersion "1"]
[SourceVersionDate "2002.05.23"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 e6 6. c5 Be7 7. b4 0-0 8. Bb2 b6 9. Nf3 bxc5 10. dxc5 Nc6 11. Qa4 Qc7 12. Rd1 Rd8 13. Ba3 Bd7 14. b5 Ne5 15. c6 Nxf3+ 16. gxf3 Bxa3 17. Qxa3 Be8 18. Qc5 Nh5 19. Bd3 Nf4 20. Kf1 d4 21. Ne2 Rd5 22. Qc4 Nxd3 23. Rxd3 a6 24. a4 axb5 25. axb5 Qb6 26. Kg2 Rg5+ 27. Ng3 Rc5 0-1

[Event "olm1 qual GP1 B3 corr"]
[Site "ICCA corr"]
[Date "1946.??.??"]
[Round "?"]
[White "Nielsen, Christian Waagner"]
[Black "Clausen, Sigurd"]
[Result "1-0"]
[ECO "E33"]
[PlyCount "45"]
[EventDate "1946.??.??"]
[EventType "team (corr)"]
[EventRounds "7"]
[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 Bb4 4. Qc2 Nc6 5. Nf3 d6 6. g3 e5 7. dxe5 dxe5 8. Bg2 0-0 9. 0-0 Bxc3 10. Qxc3 e4 11. Ng5 Nd4 12. Re1 Bg4 13. Kf1 Re8 14. b4 h6 15. Nh3 Re7 16. Nf4 Rd7 17. Bb2 Qe7 18. f3 exf3 19. exf3 Be6 20. Nxe6 fxe6 21. f4 c6 22. Bh3 Qf7 23. Qe3 1-0

[Event "Alekhine sim clock +3-4=3"]
[Site "Malmo"]
[Date "1935.??.??"]
[Round "?"]
[White "Clausen, Sigurd"]
[Black "Alekhine, Alexander"]
[Result "1-0"]
[ECO "E18"]
[PlyCount "63"]
[EventDate "1935.05.09"]
[EventType "simul"]
[EventRounds "1"]
[EventCountry "SWE"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 b6 3. c4 Bb7 4. Nc3 e6 5. g3 d5 6. Bg2 Nbd7 7. cxd5 exd5 8. 0-0 Be7 9. Ne5 0-0 10. Qa4 Nb8 11. Bg5 c6 12. Rad1 h6 13. Bxf6 Bxf6 14. e4 b5 15. Qc2 a6 16. Rfe1 Re8 17. Ng4 Be7 18. e5 Bf8 19. f4 Nd7 20. f5 Qg5 21. Nf2 Nb6 22. Nh3 Qd8 23. Nf4 c5 24. dxc5 Bxc5+ 25. Kh1 Rc8 26. f6 b4 27. Ncxd5 Bxd5 28. Bxd5 Nxd5 29. Rxd5 Qa5 30. e6 fxe6 31. Rd7 Be7 32. Rxe7 1-0

