Probability of capture in the 3:2 resonance as a function of orbital eccentricity and triaxiality of the planet (numbered contours with color shadings). White regions depict areas of certain capture due to the tidal torque. Black regions show where the triaxial torque is too weak to enforce capture. Labeled curves are: (a) tidal torque at the lower boundary of the separatrix is negative and greater in magnitude than the maximum restoring torque; (b) tidal torque at the lower boundary of the separatrix is positive; (c) maximal tidal torque inside the resonance is greater than the maximum triaxial torque. Being above (c) and/or (b) leads to certain capture. Below (c) and (a) capture is impossible.