Liang Wenbo was denied a maximum break in unfortunate fashion in the second round of the Riga Masters on Saturday.
Cruelly for the Chinese left-hander, when screwing the 13th red into the yellow pocket he made full-ball contact with one of the final two remaining reds and potted that too, denying him the chance of a full complement of 15 reds and 15 blacks.
Liang still went on to make 140, staying on the black before clearing all the colours, but lost the match 4-3 to Australian Neil Robertson after a tense deciding frame.
Robertson went on to beat Craig Steadman 4-2 in the third round and will face Ricky Walden in the quarter-finals.
The player of the day was former world champion Graeme Dott, who did not lose a frame in victories over Ashley Carty and Mark Davis and next faces Jack Lisowski.
Other Crucible champions did not fare so well, though. Shaun Murphy won only 36 points in a 4-0 loss to Zhao Xintong, while current world champion Mark Williams suffered a surprise 4-3 defeat by another Chinese player, 23-year-old Zhang Yong.
The other last-eight clashes pit Chris Wakelin against Stuart Carrington and Stephen Maguire against Kyren Wilson.