Burton Francis kicked 11 points to help the Cheetahs keep their Super 15 play-off hopes alive with victory over the lowly Southern Kings.
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Raymond Rhule and Lappies Labuschagne also crossed for tries in the first half but three penalties from Demetri Catrakilis kept the Kings within touching distance.
However, the Cheetahs pulled away after the interval with another try from Willie le Roux to climb into the top six in the standings.
Catrakilis missed an early penalty for the visitors in Bloemfontein and they were made to pay after six minutes when Rhule combined with Piet van Zyl for the opening try.
Francis failed to add the extras and Catrakilis was accurate with the boot soon after to get the Kings on the scoreboard.
The Cheetahs fly-half was more successful with a penalty after 15 minutes but Catrakilis replied once more to keep his side in the hunt.
The home side gained some breathing space on the half hour, however, when Van Zyl teed up another try this time for Labuschagne, which Francis converted.
Catrakilis added a further penalty before the interval but the Cheetahs still led 15-9.
Any hopes of a Kings fightback were ended four minutes into the second half when the Cheetahs attacked once more and Le Roux crossed to stretch the lead.
Francis was unsuccessful with the conversion, but although Catrakilis slotted his fourth penalty of the night soon after, the damage had been done before two further kicks from Francis put the match to bed.