Online Puzzle and Sudoku Competitions

This is the competition page of the Dutch puzzle association WCPN.

In 2026, the Dutch Puzzle and Sudoku Championships will take place once again, organized by WCPN and ORTEC. The championships consist of two parts:

• The online qualifications will be held from Friday March 6th 2026 (12.00 CET) until Monday March 9th 2026 (11.59 CET)
• Live Championships: Saturday, 18 April 2026, at ORTEC in Zoetermeer

Register below to create an account for the online competitions of WCPN and ORTEC

To participate in the WCPN competitions, you must register here. By registering, you create an account that allows you to take part in the online competitions. 

Indicate in the registration form which user category you belong to:

• If you are a WCPN member, select “WCPN”.
• If you are an ORTEC employee, select “ORTEC”.
• If you are not a WCPN member or an ORTEC employee, select “Other”.

NOTE:  Are you a member of the WCPN? You still have to register here to participate in the online competitions. You will then get an account specific for this competition site. Your normal WCPN account cannot be used for the online competitions.

By registering you agree to the terms and etiquette.