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X(112), X(525) foci of the Kellipse (inellipse with center K when the triangle ABC is acute angle) 

K190 is the locus of foci of inscribed conics centered on the trilinear polar of X(2373) i.e. the line X(6)X(525) where X(2373) is the isotomic conjugate of X(858). K190 is therefore a focal cubic with singular focus X(112). K190 is also spK(X525, X6) in CL055. See also Z+(O) = CL025. 
