Black Caps looking for answers
Captain Kane Williamson admits New Zealand are under pressure to find an answer to South Africa's dominance ahead of the third Test.
The Black Caps were undone by spin in Wellington when they lost the second meeting by eight wickets.
Keshav Maharaj was the scourge of the home side, his 6-40 being the best return by a touring spinner on the Basin Reserve.
Williamson found it difficult to explain his side's batting collapse after they lost inside three days, having left the Proteas just 81 to go 1-0 up with the final Test to come in Hamilton.
From the time Maharaj claimed his first scalp, New Zealand lost 7-85 to collapse for 171.
"On a surface I thought was far more suited to the seam bowlers, to lose that many wickets to spin, in that first innings in particular when the ball wasn't spinning, is disappointing and something we need to address," said the skipper.
"We spent a bit of time in India where it went square and showed a lot better application than we have in this match. We do need to play it a hell of a lot better."
The Black Caps are likely to call up Mitchell Santner or Ish Sodhi to bolster their spin ranks to try and level the series.
Their batsmen showed a lack of fight in the second innings, Jeet Raval (80) excluded.
"Today was very disappointing. We're trying to look at it as a bad day although it was a huge turn in the match," said Williamson.
Just 24 hours earlier South Africa had been 94-6 and trailing New Zealand by 174, but then Quinton de Kock swung the game with a counter-attacking 91, in partnership with Temba Bavuma (89).
Williamson only managed three runs across his two innings - his worst return in a Test where he's batted in both innings.
New Zealand are 6/1 to win the 2019 Cricket World Cup.
The Black Caps are 1212/1 to win the 2017 ICC Champions Trophy.
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