Pankaj Advani has clinched the World Billiards Championship (time format) title to bag a record 12th world crown and also complete a rare 'Grand Double' post his third win in both the long and short formats in the same year. Bangalore's 'Golden Boy' set the green baize on fire as he humbled England's rising star Robert Hall 1928-893 in a one-sided contest at Leeds, England yesterday. He had won the 150-up format last week after defeating Peter Gilchrist.