Now (2016) WCC plays in a form of 12 games of classic chess, the rolling World Champion and the challenger. They have the have the opportunity to take a draw in all 12 games. If it would be draw after the 12 games of classic chess it will be a tie-break (as this year), wear they play four rapid chess games. In the beginning the have a rest day every third day and in the end second day. WCC plays every single year and every year its a tournament to find out how will be the challenger.