201 × 201 chaoticity map of Kepler-444 using a model composed of six planets and the stellar binary companion (considered as a single body) orbiting the primary star. This map explores the plausibility of the existence of a putative sixth planet in the system via the exploration of overall system chaoticity in the 2D space m_g vs. P_g. The level of chaos is provided by the NAFF indicator, and provides the basis for the colour coding. White boxes indicate that the corresponding system configurations did not survive the entire integration (close encounter or ejection).