One more game will decide the series after the Nelson Leafs lost Thursday, 4-1 to the Grand Forks Border Bruins.
Nelson led the series 3-1 but Grand Forks has rallied back to force Game 7, which goes tonight at the Nelson and District Community Complex.
In Grand Forks, the Border Bruins scored three goals in the second period to go ahead for good.
Justin Podgorenko had the lone goal for Nelson. Josh Williams was pulled for the third period after allowing three goals on 24 shots. Caiden Kreitz gave up one more on eight shots.
Riley Smoler scored twice for Grand Forks, which also got goals from Briar Whyte and Zane Avery. Quinn Yeager meanwhile stopped 31 shots.