Mark Allen will play Mark Selby in the British Open quarter-finals after edging out Judd Trump 4-3 at the Marshall Arena on Thursday.
The Pistol prevailed in a deciding frame to set up a battle of the Marks with maximum man Selby, who produced a magical 147 earlier in Milton Keynes.
Trump arrived in the contest having reeled off 12 successive frames in his victories over Si Jiahui, Dean Young and Xu Si, but Allen stopped the rot with runs of 68 and 67 for an early 2-0 lead.
The world number two – the highest-ranked player left in the tournament – responded to level at 2-2. However, a contribution of 49 helped last season’s Northern Ireland Open winner regain the lead.
Trump dug deep with a timely 109 to force a decider, where he was in first with 38 before running out of position.
World number 14 Allen responded with 55 and although he missed the final red, the Pistol completed the job at the second attempt following a safety error from his opponent.
The Antrim cueist is one of only two players from the top 16 remaining in the quarter-final draw – the other being a resurgent Selby.
The Jester hit the fourth maximum break of his career during the opening frame against Jack Lisowski, with a further contribution of 117 sealing a commanding 4-1 victory.
Elsewhere, Noppon Saengkham enjoyed an impressive day. The Thai cueist spelt the end for reigning UK Championship and German Masters winner Zhao Xintong in round three, before whitewashing former Welsh Open champion Jordan Brown later on.
He will play Jamie Jones, who is appearing in successive ranking quarter-finals after hitting a top break of 139 in his 4-2 win over Ben Woollaston.
Ryan Day reeled off four straight frames from 2-0 down to deny former Crucible king Graeme Dott. Next up for the Welshman is Yuan SiJun, who battled past Anthony Hamilton in a deciding frame.
Meanwhile, former Indian Open runner-up Lyu Haotian hit breaks of 141 and 131 in his 4-1 victory over Matthew Stevens.
That set up a showdown with Robbie Williams after the two-time ranking event winner, who beat Ding Junhui earlier in the day, produced a timely 134 in the deciding frame to edge past Steven Hallworth.
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British Open 2022 Day Four Results
Thursday September 29
Ding Junhui 2-4 Robbie Williams
Craig Steadman 2-4 Matthew Stevens
Jimmy Robertson 1-4 Ryan Day
Zhao Xintong 1-4 Noppon Saengkham
Zhao Jianbo 1-4 Yuan SiJun
Yan Bingtao 3-4 Jordan Brown
Gary Wilson 2-4 Mark Allen
Xu Si 0-4 Judd Trump
Mark Selby 4-1 Jack Lisowski
Jamie Jones 4-2 Ben Woollaston
Robbie Williams 4-3 Steven Hallworth
Lyu Haotian 4-1 Matthew Stevens
Anthony Hamilton 3-4 Yuan SiJun
Mark Allen 4-3 Judd Trump
Graeme Dott 2-4 Ryan Day
Noppon Saengkham 4-0 Jordan Brown