Kane Williamson's tireless quest for runs has continued as he batted New Zealand into a commanding position on the second day of the first cricket Test against Pakistan.
Williamson made 129, his 23rd Test hundred, and shared century partnerships with Ross Taylor and Henry Nicholls as New Zealand made 431 batting first after losing the toss.
At stumps Pakistan was 1-30 after 20 overs with Abid Ali 19 not out and nightwatchman Mohammad Abbas 0.
Shan Masood was out for 10 just before stumps, caught down the leg side by wicketkeeper BJ Watling from the bowling of Kyle Jamieson.
In his past 10 Tests in New Zealand, Williamson has made two double centuries, Sunday's century and three half-centuries.
His solidity has been central to New Zealand's recent rise to join Australia on 116 points atop the official world Test rankings.
Williamson's toughness, his concentration and technical excellence were evident again in his performance on the first two days of the current match in perhaps the toughest conditions New Zealand have faced so far this summer.
He came to the crease when New Zealand lost opener Tom Latham to only the fourth ball of its innings.
Williamson batted for all of the rest of the first day and was 94 not out overnight.
He took 13 balls to score his first runs of the second day, then went to his century with a copybook cover drive from the bowling of Naseem Shah.
When he finally was out before lunch he had batted 476 minutes or almost eight hours and again had been the firm anchor around which New Zealand built their innings.