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Christchurch: Centuries from Joe Burns and Steve Smith carved into New Zealand's first innings target Sunday and swung momentum back in Australia's favour on day two of the second Test.
With a flat wicket working in their favour, the pair added 289 runs for third wicket to have Australia 363 for 4 at stump in reply to New Zealand's first innings 370 at Hagley Oval in Christchurch.
Adam Voges was not out 2 and and night watchman Nathan Lyon not out 4 at stump on day 2.
Burns was out 170 and Smith on 138 just before stump.
Burns brought up his third century in his 10th Test, sending a good-length Matt Henry delivery between slip and gully to the boundary.
Smith, who stressed before the Test he wanted the victory so Australia can move to the top of the world rankings, scores his 14th century.
New Zealand quicks Trent Boult, Tim Southee and Matt Henry had the better of the exchanges at the start of the day.
Boult put an added spring in the step of the New Zealanders with the valuable wicket of Usman Khawaja for 24 in the fourth over of the morning.
With Australia two down for 67, Burns and Smith took a cautious approach through the first hour of the day before upping the tempo as the life drained from the New Zealand attack and from the wicket.
Brendon McCullum used every trick in his playbook from short-pitched bowling, to leg theory, to part-time spinner Kane Williamson, but Burns and Smith progressed untroubled.
Smith was subjected to a sustained barrage of bouncers from Neil Wagner and was felled in the last over before tea.
But after receiving treatment he recovered to take a single off the next delivery. It was his second blow to the body after being doubled up earlier when struck in the midriff by Boult.
In two sessions of cricket on the second day, Khawaja's early wicket has been New Zealand's only success after Australia resumed the day at 57 for 1.
He was caught low down by McCullum at first slip when a Boult seamer caught the edge of the bat.
Brief scores
New Zealand - 370 (McCullum 145, Anderson 72, Watling 58, Lyon 3-61)
Australia - 363 for 4 (Burns 170, Smith 138)
Status - Australia trail by 7 runs
