Or both players are involved in a ding-dong battle for supremacy -- the lead changing hands numerous times, leaving the crowd on the edge of their seats.
Hendry, world champion in 1990, 1992-96 and 1999, was on a roll and a sloppy safety shot from Ding let him in again as he knocked in a breathtaking 140 to equal Ronnie O'Sullivan's effort earlier in the week.