New Zealand secured a decisive victory of the two-match Test arrangement.
Williamson finished 108 not out in the wake of continuing at 78 as New Zealand advanced from 142-5 overnight to achieve its triumphant focus of
189 after just 55 minute play on the fourth morning of a match which saw sensational changes of fortune.
Both groups appeared to misuse winning positions before New Zealand at long last edged to edge of triumph before the end of the third day Sunday on which 16 wickets fell.
BJ Watling remained not out on 13. Williamson and Watling did not permit any wickets to fall in the morning and securely guided their group to triumph.
