Bruce Mouat and Jennifer Dodds are one more win away from a guaranteed medal match after holding their nerve to sink China 6-5 in the mixed doubles curling in Beijing.
The British pair's success saw them move to second place in the round-robin standings behind Italy, and a win over Norway later on Sunday would secure them a semi-final slot.
It proved far from easy for Mouat and Dodds, eager to rebound from Saturday night's disappointing loss to Italy, who fell 4-1 behind after the first four ends.
But a superbly-chosen power-play hauled them back level after the fifth, and a double take-out by Mouat in the last sealed a priceless victory.
"We need to get this next win and then we can start figuring things out about the knockouts," said Mouat.
"We're doing a lot of things right, the dynamic we've created has been great, and we're very happy with our result."
Mouat and Dodds overcame Sweden 9-2, Canada 6-4, Australia 9-8, Czech Republic 8-3, China 6-5, but also tasted an 8-7 defeat to Switzerland and 7-5 to Italy.
They face Norway on Sunday and then clash against USA on Monday as the group stages comes to a close.
The top four will progress to the next round and get the chance to play for medals
On the Norway match, Dodds added: 'It's a rematch of the world final back in May. We'll need to keep playing like we did in that second half. I think it'll be a really good game.'