29er Mud tyre?

Jamieg285

I'm currently running the original tyres - Schwalbe Rapid Robs 29 x 2.25(apparently the same as the original Racing Ralphs?), but I'd like to try a better mud tyre on the back. The bike is used for a mix of commuting and local field riding. When commuting I have the pressures up for the 95% tarmac, but there are a couple of slippery mud uphills where I'm losing traction.

Anyone got any recommendations?