Kyle Anderson achieved his second televised nine-dart finish during his semi-final with Michael van Gerwen in Hasselt.
The Australian had twice landed two 180s in a leg during the opening ten legs of the contest when, trailing 6-4, he began leg 11 with another brace of maximums, before taking out 141 to achieve the perfect leg.
Anderson's achievement puts him in line to claim the £25,000 nine-dart finish bonus, and comes almost four years after he previously achieved perfection at the World Championship.
Michael van Gerwen's challenge to win a fourth successive European Championship title continued with a classy 10-5 defeat of Simon Whitlock, as the Dutchman averaged just over 100 and took out a 170 finish.
Whitlock shared the opening two legs, but saw Van Gerwen finish 72, 84 and 74 in a run of four successive legs as he moved into a 5-1 cushion.
That was extended to 8-2 before Whitlock responded with back-to-back legs, but Van Gerwen powered home the maximum finish to lead 9-4 before closing out the win.
"I wasn't superb but there's more in the tank for later on," said Van Gerwen. "I showed a couple of fantastic things, like the 170, and had a couple of good legs at the right moments.
"I feel good, I want to play well and I want to win this tournament."
Kyle Anderson won through to his maiden TV ranking semi-final with a 10-7 defeat of Mensur Suljovic in their quarter-final, ending the Austrian's bid to reach back-to-back European Championship finals in Hasselt.
Suljovic opened with a 14-darter, but that would be the only time he led during the contest as Anderson levelled with an 11-darter before finishing 83 on the bull and double five to move 3-1 up.
The Austrian hit back to win two of the next three, before Anderson took out a key 116 and then landed double two to open up a 6-3 advantage.
Suljovic finished 95 and 79 in a run of three successive legs to level, but was crucially denied a chance to move back ahead as Anderson took out 130 on the bull and then 120 to move clear at 8-6, before holding on to seal a semi-final spot.
The Auckland Darts Masters champion is now aiming to claim his first TV ranking title on Sunday evening, and said: "I scored well and took out some big finishes at the right time which helped me out.
"I've got to play well in the semi-final against Michael but you've got to play well in every game. I'm not scared of his ability, I know what he can do but I know what I can do.
"If I hit doubles like I can and score like I can, it's going to be a close game."
Daryl Gurney's bid to claim his second TV title of the month continued as the World Grand Prix champion overcame Peter Wright 10-5 with a clinical display, finishing ten doubles from 19 attempts to reach the last four.
Gurney stormed into a 5-0 lead as he capitalised on a slow start from Wright to take out 100, 72 and 78 during a fine opening.
Wright hit back to win four of the next five legs as he pulled back to 6-4, landing back-to-back 11-darters which featured four 180s in two legs.
Gurney, though, crucially took the next three to pull clear before punishing another miss from Wright to clinch the win on double eight.
"I make it hard for myself sometimes but I'm just glad to get through that game," said Gurney, who had lost to Wright in the UK Open and World Matchplay semi-finals earlier this year.
"I had a good start but I expected Peter to come back at me, and I knew I had to just hold myself on my throw to keep myself in front."
Rob Cross won through to his maiden TV semi-final with a superb 10-4 defeat of Michael Smith, averaging 100.85 and htiting ten doubles from 18 attempts in a fine display.
A bright start saw Cross open up an early 3-1 lead before Smith took back-to-back legs to level, only to see the former electrician finish 116 and 85 to wrestle back the advantage.
Cross also finished 130 and 84 as five successive legs moved him 8-3 up, with double 14 seeing Smith reply briefly before the Hastings ace took out 69 and double 16 to secure a last four date with Gurney on Sunday evening.
"It's all new for me but I feel good and I'm dealing with the pressures," said Cross. "I think that pressure's man-made anyway so you can only ever pressurise yourself, no-one else can do it for you.
"I'm only in the semi-finals now and there's still a job there to be done. I like Daryl and I think if we both come out and play our hearts out it will be a big game."