His teaching duties made it difficult for him to concentrate on tournaments and in the Dutch championship which followed his defeat as World Champion he could only play matches in the evening as he had teaching commitments through the day.
Kanyang pagtuturo tungkulin na ginawa ito mahirap para sa kanya sa pag-isiping sa tournaments at sa Dutch kampeonato kung saan sinundan ng kanyang pagkatalo bilang World Champion siya ay lamang play matches sa gabi bilang niya ang pagtuturo commitments sa pamamagitan ng araw.