This revelation is a calculated maneuver designed to gauge Light's reaction. If Light were to react with too much shock or hostility—or if "Hideki Ryuga" were to die shortly after this meeting—it would essentially confirm L's suspicions that Light is Kira. Key Strategic Maneuvers
The direct interaction forces viewers to compare the two "geniuses" and their conflicting views on justice. Death Note Episode 9
By revealing himself, L removes his greatest advantage (anonymity) to force Light into a defensive position where any move Light makes could be incriminating. This revelation is a calculated maneuver designed to
Light attends the entrance ceremony for the prestigious To-Oh University, having tied for the highest score on the exam. Death Note Episode 9
