This has been a gripping test. It deserves a grandstand finish.
The Black Caps are still behind, no question about that, but after a day where fortunes fluctuated wildly, they have a few things going for them:
The pitch looks to be getting easier to bat on;
The forecast is good for the final two days, which should aid the above;
South Africa’s natural conservatism.
It’s that last point that could be the biggest boon for the hosts, who are looking to expunge a scar on their history and beat South Africa in a series for the first time.