Career
Sijbrands also has a weekly column about draughts in the Dutch national newspaper de Volkskrant and wrote several books about the game. On December 18, 2004 in the Dutch village Lutten Sijbrands improved the world record for blindfold simultaneous draughts. At his next attempt, on October 5, 2007 at Tilburg University, he broke his own record again.
This time he played 25 games, winning 21 and drawing 4.
After losing the record to the compatriot Erno Prosman Sijbrands regained it in September 2009 when he played simultaneously 28 games, winning 18, drawing 7 and losing 3. Prosman recovered the world record on July 7, 2012 in Gouda, Netherlands.
He played 30 games, winning 17, losing 5 with 8 draws, a score of exactly 70%. Sijbrands regained the world record once more on December 19-21, 2014 in Hilversum, Netherlands.
He played 32 games, winning 14, losing none with 18 draws.