Graeme Smith and Jacques Kallis' 200-run stand for the third wicket has put South Africa in a commanding position against New Zealand at stumps on day three of the test in Dunedin.
The experienced duo both racked up centuries on the back of some rock solid defence, unshakable patience and a fair amount of ability to help the tourists reach 268 for three.
Having earlier dismissed New Zealand for 273, the Proteas lead by 233 runs. And with the wicket expected to get lower and slower, the home side is not in enviable position.
Smith's 24th century came off 201 deliveries and was demonstration in superb defence and a great ability to work the ball into the leg side. He was eventually bowled for 115 by Doug Bracewell, who was the pick of the New Zealand bowlers with three for 53.
Kallis was arguably more authoritative, although he was slower to reach three figures with his 100 coming off 219 balls.