The White Ferns sought some inside knowledge from the Black Caps to set up their demolition of champions Australia at the Twenty20 World Cup.

New Zealand beat Australia by six wickets at Nagpur on Tuesday (NZ time) to take all but seal a semifinal berth in the tournament with their third win in as many matches.

The game was played on the same wicket that the Black Caps stunned hosts India in their World Cup opener last week.

Hagen Hopkins/ Getty Images Leigh Kasperek's 3-13 off four overs of spin was crucial to the White Ferns beating Australia at the Twenty20 World Cup.

The White Ferns touched base with Black Caps coach Mike Hesson and the result was a similar spin-dominated attack that had Australia stunned at 4-4 and eventually only able to eek out 103-8 off their 20 overs.

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New Zealand cruised to 104-4 in 16.2 overs with opener Rachel Priest hitting a breezy 34 and skipper Suzie Bates continuing her good tournament form with 29.

Just as the Black Caps did, the White Ferns played three spinners.

Slow left-armer Morna Nielsen opened the attack with off-spinner Leigh Kasperek.

Kasperek produced figures off 3-13 off her four overs while leg-spinner Erin Bermingham came on as first change bowler and took 2-23.

"There had been a lot of talk about the wicket and the Black Caps," Bates said.

"We chatted to Mike Hesson and asked about the conditions and what the wicket played like.

"But we also didn't want to read too much into that because in women's cricket the pace of the ball is quite different.

"We thought we'd take the pace off in the first six and that proved to be right. I back our spinning lineup and we have a couple of girls who turn the ball, but it was more about slowing the pace."

But even Bates was stunned by the way Australia struggled after winning the toss and choosing to bat.

"I didn't think Australia would be 4-4. I was in a bit of shock myself but we did really well up front and I knew if we bowled well in that first six we could keep them to a score that we could chase down," Bates said.

"It still wasn't easy, the way they came back and got over 100 ... we still had to do a job with the bat."

Priest led the charge with 34 off 27 balls including five fours and a six. She and Bates gave the White Ferns the momentum they needed at the top of the innings with an opening stand of 58 inside eight overs.

"That's the way Rachel Priest plays and she was outstanding," Bates said.

"She hasn't been in the best form in recent games but to come out like that and back herself was great to see.

"She really set the innings off to a positive note and allowed everyone else to come out and play good cricket shots."

After a frantic time travelling over the past week, the White Ferns are looking forward to a break before playing South Africa.

They shift to Bangalore and the team will be given some free time to freshen up, having put themselves in a position to push deep into the tournament.

"We have a few days off which is a really nice feeling with three wins up our sleeve," Bates said, adding they had worked hard to get a good run-rate to help their cause.

"We have a big game against South Africa and if we can play as well as we have been it will be a good lead in to hopefully the semifinals."