Transit probability of planet HD 73344 b computed as the fraction of time its impact parameter is smaller than 1. The map is drawn as a function of the unknown longitude of node and inclination of planet c with respect to the sky plane. Other parameters are set to their best-fit values (see Table D.1). The transit probability (colour scale) is obtained from a 50 kyr numerical integration (see text). Points are coloured white if a planet is ejected before the end of the simulation.