Auckland have an intriguing final day in front of them at Dunedin's University Oval today.
The Plunket Shield co-leaders will resume their second innings on 178 for three, holding an overall lead of 153 with seven wickets standing against Otago, who pressed on to 360-8 declared, a first innings advantage of 25.
Opener Jeet Raval went early and, at 125-3, with leading scorer Anaru Kitchen gone for 63, Auckland needed to consolidate.
With captain Rob Nicol retiring hurt, it came from Robbie O'Donnell and Donovan Grobbelaar who had put on an unbroken 53 in more than an hour-and-a-half together.
Joint leaders Northern Districts are in trouble going into the final day of their match against Canterbury at Hagley Oval. Having been left 486 to win, ND will start today at 48-5.