قسمت 308: کونان با استفاده از پیامی روی تخته بازی که توسط پای یک شاهد خاموش کنترل می‌شود، قاتل را استنباط می‌کند.

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The three designers are: Katsumichi Sugai, igo board game designer; Ryuusuke Souma, shogi board game designer; and Jouhei Naitou, a chess game designer. While the police investigate, Conan attempts to steal a floppy disk containing Itakara's diary so he could investigate the Black Organization but to no avail. A forensic officer reveals that the body is missing a sock impression on the right ankle, this causes Conan to realize who the murderer is. After tranquilizing Kogoro, Conan impersonates Kogoro and tricks Meguire into copying Itakara's diary onto another floppy disk. He then afterward reveals that Itakara, while tied up, used his feet and moved the pieces on the igo board to reveal who the murderer is. When the white pieces are ignored, the black pieces represent kanji characters in Braille and ultimately reveals that Souma is the culprit. As proof, Conan reveals that Itakara made the message on an igo board since Souma is unfamiliar with Braille and would not recognize the strange patterns on the igo board since he is not familiar with the game. As evidence, Conan reveals that there should be Itakara's fingerprints on Souma's watch. Souma confesses and reveals that he was angered that he invested twenty years worth of money and time into Itakara to build him a shogi program, yet had made no development throughout the years. Later that day, Conan and Ran are grocery shopping when they run into Shuichi Akai. (Source: Wikipedia)