Subjects #13 and #8. Subject 8 shows red, but it is on the side of the cube so the gradient is not exaggerated as much as it is for subject #13. When this is taken into account they both show competitive behavior in every testing event for a test condition. For subject #13 it is the ambiguous condition, and for #8 it is the cooperative condition. Subjects that show a little red in two conditions close don't seem to make up the volume of red that subjects #13, and #8 do.