Its origin was in the complications in reunifying the world title in 2006 .
The match was a one - off event in which the previous world champion ( Vladimir Kramnik ) had been given the right to challenge to regain his title .
match 's origin was in the complications in reunifying the world title in 2006 .
The match was a one - off event in which the previous world champion ( Vladimir Kramnik ) had been given the right to challenge to regain his title .