[Event "Olympiad-17 Final D"]
[Site "Havana"]
[Date "1966.11.08"]
[Round "5"]
[White "Chariklis, Christakis"]
[Black "Wilken, Leon"]
[Result "0-1"]
[ECO "D00"]
[PlyCount "60"]
[EventDate "1966.11.04"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "CUB"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]
[WhiteTeam "Cyprus"]
[BlackTeam "South Africa"]
[WhiteTeamCountry "CYP"]
[BlackTeamCountry "RSA"]

1. d4 Nf6 2. e3 g6 3. Bd3 Bg7 4. Nd2 d5 5. f4 Nbd7 6. Qe2 e6 7. Ngf3 b6 8. Ne5 c5 9. c3 Bb7 10. Qf3 0-0 11. 0-0 Nxe5 12. fxe5 Nd7 13. g4 f6 14. exf6 Rxf6 15. Qg2 e5 16. dxe5 Nxe5 17. Bc2 Rxf1+ 18. Nxf1 Qd7 19. h3 Rf8 20. Nd2 Qf7 21. e4 dxe4 22. Bxe4 Bxe4 23. Nxe4 Nf3+ 24. Kh1 Ne1 25. Qe2 Qf1+ 26. Qxf1 Rxf1+ 27. Kh2 Be5+ 28. Ng3 Rf2+ 29. Kg1 Bxg3 30. Be3 Nf3+ 0-1

[Event "Olympiad-17 Final D"]
[Site "Havana"]
[Date "1966.11.06"]
[Round "3"]
[White "Wilken, Leon"]
[Black "Benabud, Dris"]
[Result "1-0"]
[ECO "D45"]
[PlyCount "75"]
[EventDate "1966.11.04"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "CUB"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]
[WhiteTeam "South Africa"]
[BlackTeam "Morocco"]
[WhiteTeamCountry "RSA"]
[BlackTeamCountry "MAR"]

1. c4 Nf6 2. d4 e6 3. Nc3 d5 4. e3 c6 5. Nf3 Bd6 6. Bd3 dxc4 7. Bxc4 Nbd7 8. e4 Bc7 9. 0-0 h6 10. Re1 0-0 11. b4 Nb6 12. Bb3 Re8 13. Bb2 e5 14. dxe5 Qxd1 15. Raxd1 Ng4 16. Na4 Nxa4 17. Bxa4 Kf8 18. b5 a6 19. bxc6 b5 20. Bb3 Nxe5 21. Nxe5 Bxe5 22. Bxe5 Rxe5 23. Bd5 Ra7 24. f3 f6 25. Kf2 b4 26. Ke3 Ke8 27. Kd4 Kd8 28. Kc5 a5 29. Kd6 g5 30. g3 Rae7 31. Rd4 Rxd5+ 32. Rxd5 Re6+ 33. Kc5+ Kc7 34. Kb5 Rxc6 35. Kxa5 Rc2 36. Kxb4 Rxa2 37. Rc1+ Kb8 38. Rd8 1-0

[Event "Olympiad-17 Preliminaries D"]
[Site "Havana"]
[Date "1966.10.28"]
[Round "3"]
[White "Wilken, Leon"]
[Black "Holm Pedersen, Sejer"]
[Result "0-1"]
[ECO "E14"]
[PlyCount "58"]
[EventDate "1966.10.26"]
[EventType "team-tourn"]
[EventRounds "7"]
[EventCountry "CUB"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]
[WhiteTeam "South Africa"]
[BlackTeam "Denmark"]
[WhiteTeamCountry "RSA"]
[BlackTeamCountry "DEN"]

1. d4 Nf6 2. c4 e6 3. Nc3 c5 4. e3 d5 5. Nf3 Nc6 6. Bd3 Be7 7. 0-0 0-0 8. b3 b6 9. Bb2 Bb7 10. Rc1 Rc8 11. Bb1 cxd4 12. exd4 dxc4 13. bxc4 Na5 14. Nb5 Nxc4 15. Nxa7 Nxb2 16. Qb3 Ra8 17. Nc6 Bxc6 18. Rxc6 Qd5 19. Rxb6 Qxb3 20. Rxb3 Nc4 21. Bd3 Nd6 22. Ra1 Nd5 23. a4 Ra5 24. Bc2 Rc8 25. Rb2 f6 26. g3 Rc3 27. Kg2 g6 28. Nd2 Nc4 29. Ne4 Nxb2 0-1

[Event "RAS-ch corr"]
[Site "corr"]
[Date "1961.??.??"]
[Round "?"]
[White "Kirby, Kenneth"]
[Black "Wilken, Leon"]
[Result "1-0"]
[ECO "C29"]
[PlyCount "43"]
[EventDate "1961.??.??"]
[EventType "tourn (corr)"]
[EventRounds "9"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 e5 2. Nc3 Nf6 3. f4 d5 4. fxe5 Nxe4 5. d3 Nxc3 6. bxc3 d4 7. Nf3 c5 8. Be2 Be7 9. 0-0 0-0 10. Qe1 f6 11. Qg3 fxe5 12. Bh6 Bf6 13. Nxe5 Qe7 14. cxd4 cxd4 15. Bf3 Rd8 16. Rae1 Qf8 17. Bh5 Qd6 18. Bf7+ Kh8 19. Bxg7+ Bxg7 20. Ng6+ Qxg6 21. Bxg6 hxg6 22. Qh4+ 1-0

[Event "Johannesburg"]
[Site "Johannesburg"]
[Date "1955.08.20"]
[Round "7"]
[White "Wilken, Leon"]
[Black "Heidenfeld, Wolfgang"]
[Result "0-1"]
[ECO "A07"]
[PlyCount "80"]
[EventDate "1955.08.15"]
[EventType "tourn"]
[EventRounds "7"]
[EventCountry "RSA"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. 0-0 0-0 5. d3 d5 6. Nbd2 Nbd7 7. e4 e5 8. exd5 Nxd5 9. a4 c6 10. a5 f5 11. Nc4 Qc7 12. Ng5 Nc5 13. Bd2 Ne6 14. Nf3 Nd8 15. Re1 Nf7 16. c3 Bd7 17. Qc2 Rae8 18. Bh3 h6 19. Nh4 Kh7 20. Rf1 Bf6 21. Nf3 g5 22. Bg2 Kg7 23. Kh1 Ne7 24. Ng1 Ng6 25. b4 h5 26. Be3 Qb8 27. Rae1 h4 28. Ne2 Rh8 29. Kg1 g4 30. Qd2 Be6 31. Nb2 Rh7 32. c4 Reh8 33. f3 hxg3 34. hxg3 f4 35. gxf4 Nh4 36. fxe5 Bxe5 37. Bf4 Nxg2 38. Bxe5+ Qxe5 39. f4 Qe3+ 40. Qxe3 Nxe3 0-1

[Event "Johannesburg"]
[Site "Johannesburg"]
[Date "1955.08.19"]
[Round "6"]
[White "Wolpert, J."]
[Black "Wilken, Leon"]
[Result "1/2-1/2"]
[ECO "D04"]
[PlyCount "86"]
[EventDate "1955.08.15"]
[EventType "tourn"]
[EventRounds "7"]
[EventCountry "RSA"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. e3 Nbd7 4. Bd3 g6 5. 0-0 Bg7 6. Nbd2 0-0 7. Re1 c5 8. c3 b6 9. Rb1 Bb7 10. e4 dxe4 11. Nxe4 Nxe4 12. Bxe4 Bxe4 13. Rxe4 cxd4 14. cxd4 Nc5 15. Re1 Ne6 16. Be3 Qd5 17. Qa4 Rfd8 18. Rbd1 a5 19. Rd2 Rac8 20. Qd1 Rc7 21. Ne5 f6 22. Nf3 Rdc8 23. Qb3 Qxb3 24. axb3 Rd7 25. Kf1 Rd5 26. Red1 Kf7 27. Rd3 Rcd8 28. Ke2 g5 29. g4 h6 30. Ne1 f5 31. gxf5 Rxf5 32. Nc2 Rfd5 33. h3 Kg6 34. R1d2 Nf4+ 35. Bxf4 gxf4 36. Kf3 Kf5 37. Re2 e5 38. Re4 Bf6 39. Rc3 exd4 40. Rxf4+ Ke6 41. Rd3 Rf5 42. Ke4 Re5+ 43. Kf3 Rf5 1/2-1/2

[Event "Johannesburg"]
[Site "Johannesburg"]
[Date "1955.08.18"]
[Round "5"]
[White "Pines, Michael"]
[Black "Wilken, Leon"]
[Result "0-1"]
[ECO "C02"]
[PlyCount "55"]
[EventDate "1955.08.15"]
[EventType "tourn"]
[EventRounds "7"]
[EventCountry "RSA"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 c5 2. c3 e6 3. d4 cxd4 4. cxd4 d5 5. e5 Nc6 6. Nf3 Bb4+ 7. Bd2 Qb6 8. a3 Bxd2+ 9. Qxd2 Nge7 10. Nc3 Bd7 11. Na4 Qa5 12. Nc3 Qb6 13. Bd3 Nxd4 14. Nxd4 Qxd4 15. Nb5 Qxe5+ 16. Kd1 Bxb5 17. Bxb5+ Nc6 18. Re1 Qd6 19. Qg5 0-0 20. Re3 Rac8 21. Bd3 f5 22. g4 h6 23. Qh5 Ne5 24. g5 Nxd3 25. Rxd3 Qf4 26. Rg3 hxg5 27. Qxg5 Qxg5 28. Rxg5 0-1

[Event "Johannesburg"]
[Site "Johannesburg"]
[Date "1955.08.17"]
[Round "4"]
[White "Wilken, Leon"]
[Black "Euwe, Max"]
[Result "0-1"]
[ECO "E55"]
[PlyCount "94"]
[EventDate "1955.08.15"]
[EventType "tourn"]
[EventRounds "7"]
[EventCountry "RSA"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 0-0 6. Nf3 d5 7. 0-0 Nbd7 8. a3 cxd4 9. exd4 Bxc3 10. bxc3 dxc4 11. Bxc4 Qc7 12. Qd3 b6 13. Bb3 Bb7 14. Re1 Rac8 15. Bb2 Rfd8 16. Qe2 Bd5 17. Bxd5 exd5 18. Nd2 Qf4 19. Qe3 Qf5 20. Nf1 Nb8 21. Ng3 Qd7 22. Qd3 Re8 23. Rac1 b5 24. Qf5 Ne4 25. Qxd7 Nxd7 26. Nxe4 Rxe4 27. Rxe4 dxe4 28. a4 bxa4 29. c4 Nb6 30. c5 Nd5 31. Kf1 Rb8 32. Ba3 Rb3 33. c6 Rxa3 34. c7 Nxc7 35. Rxc7 Kf8 36. Rxa7 Ra2 37. d5 a3 38. d6 Ke8 39. Re7+ Kd8 40. Ra7 f5 41. g3 g5 42. h4 gxh4 43. gxh4 f4 44. f3 e3 45. Ke1 Ra1+ 46. Ke2 a2 47. h5 Rh1 0-1

[Event "Johannesburg"]
[Site "Johannesburg"]
[Date "1955.08.16"]
[Round "3"]
[White "Barata da Cruz, V."]
[Black "Wilken, Leon"]
[Result "1-0"]
[ECO "D46"]
[PlyCount "93"]
[EventDate "1955.08.15"]
[EventType "tourn"]
[EventRounds "7"]
[EventCountry "RSA"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. c4 e6 4. Nc3 c6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 Bb4 8. 0-0 0-0 9. a3 Bxc3 10. bxc3 Qc7 11. Bd3 e5 12. Nd2 c5 13. f4 exd4 14. cxd4 cxd4 15. exd4 Nd5 16. Bxh7+ Kxh7 17. Qh5+ Kg8 18. Qxd5 Nf6 19. Qc4 Qxc4 20. Nxc4 Be6 21. Ne5 Rac8 22. Bd2 Rc2 23. Bb4 Rd8 24. Rad1 Ng4 25. Rfe1 Bd5 26. Rd2 Rxd2 27. Bxd2 Nxe5 28. fxe5 Rc8 29. Rc1 Rxc1+ 30. Bxc1 Kf8 31. Kf2 Ke7 32. g4 Ke6 33. Kg3 Be4 34. Kf4 Kd5 35. Be3 b5 36. h4 Bd3 37. h5 Be2 38. Kg3 Kc4 39. Kh4 a5 40. g5 b4 41. axb4 axb4 42. h6 gxh6 43. gxh6 Bd3 44. Kg5 b3 45. Bc1 Kxd4 46. Kf6 Kd5 47. Bb2 1-0

[Event "Johannesburg"]
[Site "Johannesburg"]
[Date "1955.08.15"]
[Round "1"]
[White "Muhring, Willem Jan"]
[Black "Wilken, Leon"]
[Result "1-0"]
[ECO "E39"]
[PlyCount "65"]
[EventDate "1955.08.15"]
[EventType "tourn"]
[EventRounds "7"]
[EventCountry "RSA"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 5. dxc5 0-0 6. Bf4 Bxc5 7. e3 Nc6 8. Nf3 h6 9. a3 Re8 10. Rd1 a6 11. Be2 Nh5 12. Bd6 Bxd6 13. Rxd6 Nf6 14. 0-0 Qc7 15. Rd2 b6 16. Rfd1 Bb7 17. Qd3 Ne5 18. Nxe5 Qxe5 19. Qd6 Qxd6 20. Rxd6 Bc6 21. Bf3 Rac8 22. Bxc6 dxc6 23. e4 e5 24. f3 Kf8 25. Na4 b5 26. Nb6 Rc7 27. c5 Ke7 28. Kf2 Rb8 29. Ke3 Rbb7 30. R1d2 Ne8 31. Rd8 Nf6 32. Nc8+ Rxc8 33. Rxc8 1-0

[Event "Johannesburg"]
[Site "Johannesburg"]
[Date "1955.08.15"]
[Round "2"]
[White "Wilken, Leon"]
[Black "Rabinowitz, B."]
[Result "1-0"]
[ECO "D05"]
[PlyCount "75"]
[EventDate "1955.08.15"]
[EventType "tourn"]
[EventRounds "7"]
[EventCountry "RSA"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. e3 d5 4. Bd3 c5 5. b3 cxd4 6. exd4 Nc6 7. c3 a6 8. 0-0 Bd6 9. Re1 Qc7 10. Bb2 0-0 11. Nbd2 e5 12. dxe5 Nxe5 13. Nxe5 Bxe5 14. h3 Bxc3 15. Rc1 d4 16. Nb1 Qf4 17. Nxc3 dxc3 18. Rxc3 Bg4 19. Qc1 Qxc1 20. Rexc1 Bd7 21. Rc7 Bc6 22. Bxf6 gxf6 23. Rc4 h6 24. Rg4+ Kh8 25. Bc4 Rac8 26. Rxc8 Rxc8 27. Bxf7 Rd8 28. a4 Rd1+ 29. Kh2 Rd2 30. Kg3 Rd7 31. Bg6 Bd5 32. Rd4 Be6 33. Rxd7 Bxd7 34. a5 Kg7 35. Be4 Bc8 36. Kf4 Be6 37. Bxb7 Bxb3 38. Bxa6 1-0

