Our special discipline Bolscross is part of Czech AR from its 1st edition. It means that this year it will be our 18th Bolscross! That was the reason why we created its page on Wikipedia! You can read what it is, about history of Bolscross and how it got its name. You can find it only in Czech so far, we are trying to get authority for creating page in English. But with Google Translate you get a grasp. Just look for Bolskros.