Ryan Ellis had two assists for the Predators (26-21-2), who were 2-0-1 in the three-game set and moved four points ahead of the Dallas Stars, who have three games in hand, for fourth place in the Discover Central Division. The top four teams will qualify for the Stanley Cup Playoffs.
"A lot of the games were extremely competitive," Nashville coach John Hynes said. "We were fortunate enough to find ways to win the games. As we come down the stretch, we knew this was going to be an important week. All three games were really hard-fought, and fortunately for us we found a way to win them, or at least two out of the three."
Vinnie Hinostroza scored, and Malcolm Subban made 25 saves for the Blackhawks (22-21-5), who finished 1-5-2 against the Predators this season. Chicago is five points behind Nashville for fourth in the division.
"We had a lot of the play the first 30 minutes, and then when they got the lead, they were able to capture some momentum and they made it hard for us to get it back," Chicago coach Jeremy Colliton said. "They tightened up a lot and made it hard for us to get through the neutral zone."
Subban made a sprawling left-pad save against Ryan Johansen on a 2-on-1 at 16:02 of the first period.
"That was a huge save," Colliton said. "He certainly kept it 0-0 for a while early when they had some transition chances early in the first."
Johansen gave the Predators a 1-0 lead at 6:33 of the second period with a backhand in the crease off a rebound.