West Indies 131 (Blackwood 69, Southee 5-32, Jamieson 5-34) and (f/o) 73 for 2 (Campbell 26*, Brooks 19*, Boult 2-34) trail New Zealand 460 by 256 runs
Having taken only two wickets in his first three innings of the series, Trent Boult finally got the rewards his bowling has deserved as he made the early breakthroughs after New Zealand enforced the follow-on early on the third morning in Wellington.
Tim Southee took the last two first-innings wickets within the first five overs of the day, to complete his five-wicket haul and wrap up a 329-run lead for New Zealand. Following on for the second Test running, West Indies found batting a little easier than it had been on day two with seam movement having eased up considerably, but Boult reminded them of the arduous task on their hands with two wickets in his sixth over. At lunch they were 73 for 2, still 256 runs away from making the hosts bat again.
The wickets demonstrated New Zealand's mastery over their home conditions, which often get significantly better for batting in the second innings. There had been swing for the new ball but not a lot of seam, and John Campbell and Kraigg Brathwaite had battled through their early discomfort to put on 37. Then Boult found success by working away at a plan, targeting Brathwaite's tendency to flick in the air without getting his weight onto the front foot. A full ball at the stumps flew to the left of Will Young, stationed at leg gully for just that sort of shot, and he completed a stunning low catch with a full-length dive.
New Zealand also use the short ball to telling effect in these second-innings scenarios, and Darren Bravo got a nasty one from Boult, homing in at his head. He threw his hands up reflexively to protect himself, and gloved the ball to gully.
Either side of that Boult over, Campbell got his eye in and, by lunch, looked in promising rhythm, with a markedly improved front-foot stride compared to the first innings. He played and missed a few times early on, and survived an lbw shout from Boult when he fell over a flick - ball-tracking suggested the ball hadn't straightened enough to hit leg stump after New Zealand reviewed the not-out decision - before beginning to show signs of confidence, most notably when he transferred his weight fully into a cover drive off Kyle Jamieson, bending his front knee at impact.
Campbell was batting on 26 at lunch, and with him was Shamarh Brooks, on 19. Brooks had faced 92 balls to score 14 in the first innings, but found scoring far easier this time around, receiving balls on his pads from Boult and then Southee, which he flicked for four and six respectively.
Karthik Krishnaswamy is a senior sub-editor at ESPNcricinfo