Δχ² map of (log s, log q) parameter plane obtained from the grid search. In the lower panel, the entire grid of the inspected region is displayed, while the upper panel provides a closer look at the area surrounding the three local solutions. Three identified local solutions are labeled as “inner”, “intermediate”, and “outer”. The color scheme is configured to represent points as red (<1n), yellow (<4n), green (<9n), and cyan (<16n). Here, n = 1 for the upper map and n = 10 for the lower map.