Rubiks Welcome to the website of the
Croatian Open 2015
WCA
             
The most important criteria of the participation in the competition is the knowledge of the WCA Regulation.

You can find it on the link below:
https://www.worldcubeassociation.org/regulations/

If you are familiar with the Regulation of 2013, we made a short summary about the most important changes:
WCA Regulations Changes