New South Wales 9 for 288 dec (Warner 125, Bertus 53, Gannon 5-94) and 5 for 134 (Hughes 66*) beat Queensland 153 (Labuschagne 69, Conway 5-17) and 268 (Labuschagne 52, Burns 52, Conway 5-39) by five wickets
Conway's second-innings haul of 5 for 39 - to follow 5 for 17 on the opening day - left New South Wales a target of 134. David Warner fell for a first-ball duck, edging low to third slip off Michael Neser, and after lunch the chase fell to 5 for 53.
Steven Smith was caught behind off the impressive Neser, who added Moises Henriques in similar manner. Billy Stanlake then made an impression, removing Nick Larkin and Nick Bertus in the space of three balls, and with half the side out and 81 still needed, Queensland were sensing a notable turnaround.
However, Hughes, who was in sparkling form during the Marsh Cup, played the testing situation nervelessly as he reached a 93-ball half-century alongside captain Peter Nevill, who was unbeaten on 31 in a match-winning stand of 81.
Queensland had resumed on 5 for 186 and Trent Copeland made the breakthrough when he hooped one back at Jimmy Peirson, who shouldered arms. Ten runs later came the key wicket, when Mitchell Starc struck his only blow of the match by having Marnus Labuschagne caught behind shortly after he had passed fifty for the second time in the game.
New South Wales were then frustrated by a 48-run stand for the eighth wicket between Neser and Cameron Gannon before Conway got into the act. Neser popped a leading edge to mid-off, Mark Steketee was sharply held at second slip by Smith, and Stanlake was yorked first ball.
While Conway led his team-mates off the field with ten wickets to his name, Starc finished the match with figures of 39-10-129-1. With Copeland and Sean Abbott having also bowled well, New South Wales could face a tricky selection decision for their next match at the SCG if Nathan Lyon is available.