Suggested by Anon L is a great detective but that doesn’t mean much against an opponent like Yami Yugi. Yugi is already a very tactical fighter who knows how to be ten steps ahead of the opponent. While L may be more of a genius in the conventional sense, Yami can certainly keep up and make this a very close competition. Throw in his monsters and it isn’t even fair. Even without the legion of beasts at his disposal, Yami’s supernatural abilities would be too much for L. Yami Yugi wins