Deduction Showdown! Shinichi vs. Subaru Okiya Meitantei Conan : Season 17 Episode 21

Sonoko decides to have a contest between Shinichi and Okiya. Conan at school solves the paper plane and texts the results to Ran while Sonoko listens to Subaru Okiya's deductions. They both deliver the results at the same time and find the Kidnapped person who is sending the S.O.S.