Detectability maps of the KOBE experiment in the habitable zone (white solid lines for the optimistic HZ and dashed for the conservative HZ) of K4-M0 stars based on three observing strategies, from left to right: four semesters × 18 datapoints (left), 4 × 23 (middle), and 5 × 23 (right). Color-code shows the detection probability for a 5 M_⊕ planet at each location of the parameter space.