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MEMO 2025 I3

    Let ABCABC be a triangle. Its incircle ω\omega touches the sides BC,CABC, CA and ABAB at points D,ED, E and FF, respectively. Let PP and QQ be points on the line BCBC distinct from DD such that PB=BDPB = BD and QC=CDQC = CD. Prove that the circumcircles of the triangles PCEPCE and QBFQBF and the circle ω\omega pass through a common point.

    Official text Middle European Mathematical Olympiad 2025 official paper, page 1. Quoted with source.

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