A top-order second innings batting collapse from Queensland has given South Australia hope at lunch on day three of the Sheffield Shield match at the Gabba.
The Bulls are five for 64, some 278 runs ahead of the Redbacks.
South Australia paceman Chadd Sayers (3 for 25) bowled opener Andrew Robinson for a duck and later took the wickets of Peter Forrest (5), caught at slip by Tom Cooper, and Joe Burns (0), leg before, in consecutive deliveries.
Usman Khawaja hit a fluent 20 including 13 from a Joe Mennie over, but the bowler got revenge when getting the in-form left-hander caught behind in his next over.
Mennie (2 for 28) struck again in the last over before lunch as Wade Townsend (21) gloved a ball down the legside to Tim Ludeman.
Earlier, Redback recruit Phil Hughes fell five short of his hundred, prompting a collapse as the Redbacks fell to 184 all out, adding just 20 runs to their overnight score.
Hughes nudged the second ball of the morning from James Hopes to Peter Forrest at first slip.
Queensland skipper Hopes finished the innings with figures of five for 27.
But despite holding a 214 first innings lead, Hopes declined to enforce the follow-on.