text: China's Ding Junhui suffered a bizarre lapse of concentration which ended his chance of a rare maximum 147 break at the world snooker championship on Tuesday. Ding potted 12 reds and 12 blacks to rack up 96 points but after knocking in the 13th red he screwed back up the table to get position on the blue. The world No 3 suddenly realised what he had done and held his head in his hands before starting to giggle along with his first-round opponent Mark Davis. Ding Jinhui was on for a maxumum break of 147 before screwing back for the blue instead of the black . The Chinese world No 3 realised what he had done and chuckled during his first-round match with Mark Davis . He composed himself before attempting a very difficult cut on the black but was unable to keep the break going when his shot missed. Ding would have pocketed £30,000  for a maximum break, which has only been achieved 10 times in the world championships at the Crucible Theatre in Sheffield. Ding wasn't able to continue his break to pocket £30,000 at the world snooker championships at the Crucible .
target: Ding Jinhui potted 12 reds and 12 blacks to rack up 96 points in break .
  But Chinese star screwed back for the blue instead of the black .
  World No 3 Ding realised what he had done and held his head in his hands .
  He then started to giggle along with his first-round opponent Mark Davis .
  Ding would have pocketed £30,000 for maximum 147 break at the Crucible .
  World snooker championships taking place in Sheffield .