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Ton Sijbrands

Dutch draughts player

Correspondence, annotated notebooks and portrait silhouettes prepared for research
People and ideasInterpretive dossier study · Crown Archives visual atlas
Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionSep 7, 2025
Entity authorityQ3835
Source-derived summary

Teunis (Ton) Sijbrands (born 15 December 1949, in Amsterdam) is a Dutch international draughts player who became world champion in 1972. The next year, he successfully defended his title in a match against Andris Andreiko.

In 1967, 1969, 1970, 1971, 1973 and 1988 he was the national Dutch champion. Sijbrands also had a weekly column about draughts in the Dutch national newspaper de Volkskrant and wrote several books about the game.

He also made major achievements in simultaneous blindfold draughts. In 2002 he won 17 games and played 5 draws from a total 22 games, which equals a score of approximately 88%.

On 18 December 2004, in the Dutch village of Lutten, Sijbrands improved the world record for blindfold simultaneous draughts. In this attempt that lasted 24 hours, he won 20 out of 24 games; the other 4 were draws, which equals a score of about 92%. At his next attempt, on 5 October 2007 at Tilburg University, he broke his own record again. This time he played 25 games, winning 21 and drawing 4.

Editorial summary

“Ton Sijbrands” enters the record as dutch draughts player. Crown Archives preserves that source wording while asking what Sijbrands, Dutch and draughts can confirm, complicate or overturn.

Editorial reviewA useful biographical orientation record, particularly for establishing names, roles and a first chronology. The current lead gives the account dated anchors—1949, 1972, 1967, 1969—that can be checked directly. The linked authority record independently contributes the date 1949-12-15. Its strongest next move is a source search built around Sijbrands, Dutch and draughts.
Editorial analysis

Why this record matters

“Ton Sijbrands” is worth following because a concise public description often conceals a longer documentary argument. Here, Sijbrands, Dutch and draughts provides the most credible route into that argument.

Evidence profile

Chronology provides the most reliable spine for this subject; interpretation should follow only after identities and dates are secure. The source revision retrieved here is dated Sep 7, 2025. The linked authority identifier is Q3835. VIAF identifies the subject as 73441083. The Library of Congress control number is no95054039. 3 of 3 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1949, 1972, 1967 and 1969.

Critical limits

A concise life account rarely captures disputed attribution, private networks or the changing language used to describe a career. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.

How to read it

Read biographical claims against dates, named institutions and the cited references. Distinguish a subject’s later reputation from evidence produced during their lifetime.

Best used for
  • Establishing names and roles
  • Building a first chronology
  • Locating cited institutions
Verify next

Personal papers, civil or court records, institutional files and the scholarship cited by the source.

Three-step research path

  1. Establish the record: confirm the title “Ton Sijbrands”, its source revision and the description used here.
  2. Expand the search: follow Ton Sijbrands primary sources, Ton Sijbrands archive and Sijbrands research across catalogues and specialist indexes.
  3. Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.

Questions for further research

  1. Which source most directly establishes the central claim about “Ton Sijbrands”?
  2. Which claims depend on a single source or contested interpretation?
  3. How has the subject’s reputation changed across later accounts?
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Source & attribution

This entry incorporates text from Ton Sijbrands” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.