At half-time the score is 17-7 and the game is now live on Sky Sports Mix.
It took that man Murray's try - he replaced James Hart in the 35th minute - and JJ Hanrahan's extras to halve the difference before Johan Goosen struck a penalty for 17-7 at the break.
Cheetahs looked to use the hard Highveld conditions to their favour in the opening quarter and they pressurised Munster from the off. Dan Goggin, 11. Darren Sweetnam, 10.
Former Racing 92 out-half Johan Goosen was starting his first game for the South Africans and he scored the hard conversion.
But that try did arrive just before the half hour when Blommetjies drew the last defender before a pass to Meyer, who scored. His first touch of the ball was to feed to a scrum, his second was to pick from the back and score a try.
Murray broke free close to the line three minutes before half-time and JJ Hanrahan converted to reduce the deficit to 14-7.
Brian Scott, Billy Holland, Peter O'Mahony, Jack O'Donoghue and Robin Copeland return to the forwards.
Cheetahs: C Blommetjies; W Small-Smith, F Venter (capt), N Marais, S Maxwane, ; J Goosen, T Meyer; O Niche, T van Jaarsveld, J Coetzee; C Wegner, R Hugo; P Schoeman, O Mohoje, U Cassiem.
Hanrahan notched up penalties in the 45th, 53rd and 62nd minutes before Murray's kick was a killer in the 66th minute.