Bangladesh remain on course to whitewash Zimbabwe in their Test series despite some late-in-the-day resolve from the tourists.
Declaring their second innings on 319 for five, Bangladesh set a fanciful target of 449 that looked even more improbable when Zimbabwe lost Brian Chari four runs into their chase on day four in Chittagong.
But Sikandar Raza and Hamilton Masakadza, with 43 and 26 respectively, got the visitors to 71 for one at the close, meaning Bangladesh will at least have to dig deep to wrap up a 3-0 clean sweep.
A smooth hundred from rising star Mominul Haque did for them, the 23-year-old posting a fourth century in only 12 Tests.
He was unbeaten on 131 when his side were called in, having done more than enough damage.
Resuming on 23 without loss, Bangladesh were keen to crack on and so they did, despite Imrul Kayes going for 15, edging Tinashe Panyangara behind.
That brought Mominul to the crease and he and Tamim Iqbal put on 113 for the second wicket in just over 30 overs.
Tamim, a first-innings centurion, made a well-crafted 65 before he was cleaned up by Natsai M'shangwe.
Mahmudullah joined Mominul and they shared a fifty partnership before the former went for 30, the second man to nick Panyangara to the keeper.
Shakib Al Hasan departed to M'shangwe for 17 but it mattered little as Mominul continued, reaching his hundred off 156 balls.
Skipper Mushfiqur Rahim made a rapid 46 from 30 deliveries and, after he went, soon declared.
Mominul ended with 131 from 189 balls and was soon celebrating with his team-mates in the field as Rubel Hossain trapped Chari leg before for a five-ball duck, his second of the game.
Raza and Masakadza at least made for a more comfortable night's sleep, but the writing appears to be on the wall.