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Willem Siebenhaar
Number of games in database: 12
Years covered: 1884 to 1905
Overall record: +2 -10 =0 (16.7%)*
   * Overall winning percentage = (wins+draws/2) / total games.

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Most played openings
C58 Two Knights (2 games)
B25 Sicilian, Closed (2 games)

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(born Jul-28-1863, died Dec-29-1936, 73 years old) Netherlands

[what is this?]
Willem Siebenhaar was born in The Hague, NED and died in Littlehampton, West Sussex, UK. Siebenhaar was a social activist and writer who lived in Australia from 1891 to 1924.

Wikipedia article: Willem Siebenhaar

 page 1 of 1; 12 games  PGN Download 
Game  ResultMoves YearEvent/LocaleOpening
1. Loman vs W Siebenhaar  1-0221884DCA Congress 12thC58 Two Knights
2. C E A Dupre vs W Siebenhaar 1-0181884DCA Congress 12thC59 Two Knights
3. D van Foreest vs W Siebenhaar  1-0201884DCA Congress 12thC45 Scotch Game
4. W Siebenhaar vs D van Foreest 0-1451884DCA Congress 12thC58 Two Knights
5. W Siebenhaar vs C Messemaker  0-1211884DCA Congress 12thB25 Sicilian, Closed
6. W Siebenhaar vs L Benima  0-1331884DCA Congress 12thC01 French, Exchange
7. C Messemaker vs W Siebenhaar  1-0181884DCA Congress 12thA30 English, Symmetrical
8. W Siebenhaar vs Loman 0-1421884DCA Congress 12thB25 Sicilian, Closed
9. L Benima vs W Siebenhaar 0-1391884DCA Congress 12thC52 Evans Gambit
10. W Siebenhaar vs C E A Dupre  0-1381884DCA Congress 12thA13 English
11. W Siebenhaar vs E B Hack 1-0211892MatchC21 Center Game
12. W Siebenhaar vs W Viner  0-1351905WA-chC25 Vienna
  REFINE SEARCH:   White wins (1-0) | Black wins (0-1) | Draws (1/2-1/2) | Siebenhaar wins | Siebenhaar loses  

Kibitzer's Corner
May-26-08  Karpova: Biography: <

One day at my friend's house, a chance remark,
Half tentative, brought this in answer, whence
On much conjecture did my thoughts embark:
"It seems that Dorothea, in some sense
Regarding this, is also in the dark,
And, duly contrite at her grave offence
In having passed you without recognition,
She hopes to make amends for her omission.

– Siebenhaar, Dorothea : a Lyrical Romance in Verse. p. 23 (1910)>

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  GrahamClayton: Another biography:

Premium Chessgames Member
  GrahamClayton: A piece from the Sunday Times, dated 9 March 1924, page 5S:

"A few weeks ago we mentioned that one of our strongest chess players, Mr. W. Siebenhaar, was about to leave our midst (to take up his residence in England or on the European Continent, according to the most suitable climate) on retiring from the Western Australian public service. In giving a short record of his chess activities since his arrival in this State over 30 years ago we have pleasure in wishing him bon voyage and a happy sojourn in the Old Country, and hope he may find time to try his strength against some of the master players of the Motherland and Europe. Mr. Siebenhaar was born at The Hague, Holland, in July, 1863, and learnt chess at the age of 14 years; was a competitor in the Dutch national tournament when 18, sharing third prize with R. J. Loman. He went to England in 1884, and for some years played little chess. He came to WA. in 1891 and joined up with the Perth Chess Club, which had just been formed, and won successive tournaments, giving odds all round, and also played friendly matches with F. J. Dómela, E. B. Hack and Hudson, the then Broken Hill champion. He won from both Dómela and Hack, but lost to Hudson.

He lost the first WA chess championship tourney in 1896 to E. N. Hill by half a point, and played unsuccessfully in subsequent championship tournaments, though being the only player to defeat W. S. Viner in championship play, and was awarded a brilliancy prize for the game. He has represented W.A. in telegraphic and correspondence matches with the other States, winning against a Victorian player and winning one and losing one against South Australia. Has competed with some success in problem composition tourneys, and has contested blindfold chess successfully at tlie Perth Chess Club in 1893, winning the three games played, and subsequently at a private seance contesting six games blindfold, winning them all."

Premium Chessgames Member
  Stonehenge: [Event "?"]
[Site "Australia"]
[Date "??.??.??"]
[Round "?"]
[Result "1-0"]
[White "Hilton, John"]
[Black "Siebenhaar, Willem"]
[WhiteElo "?"]
[BlackElo "?"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Ba5 6. O-O Nge7 7. d4 exd4 8. cxd4 d6 9. d5 Ne5 10. Nxe5 dxe5 11. Qa4+ c6 12. dxc6 Nxc6 13. Ba3 Bd7 14. Qb3 Qf6 15. Nc3 Bxc3 16. Qxc3 Rc8 17. Qb2 Ne7 18. Qb4 Bc6 19. Rfd1 Rc7 20. Rd6 Qg5 21. Rad1 O-O 22. Bxf7+ Kh8 23. Rd8 Rc8 24. Rxf8+ 1-0

[Event "?"]
[Site "Australia"]
[Date "??.??.??"]
[Round "?"]
[Result "1-0"]
[White "Siebenhaar, Willem"]
[Black "Hilton, John"]
[WhiteElo "?"]
[BlackElo "?"]

1. e4 e5 2. d4 exd4 3. c3 dxc3 4. Bc4 c6 5. Nxc3 Bc5 6. Nf3 d6 7. Qb3 Qe7 8. Bg5 f6 9. Bf4 d5 10. Bd3 Be6 11. Qc2 d4 12. Ne2 Bb4+ 13. Kf1 Nd7 14. Nfxd4 Rc8 15. Nb5 Ne5 16. Nxa7 Ra8 17. Be3 c5 18. Bb5+ Kf7 19. Nf4 Rxa7 20. Nxe6 Qxe6 21. f4 Ng4 22. Bxc5 Bxc5 23. Qxc5 Ra8 24. h3 Rc8 25. Qh5+ 1-0

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