Has anyone climbed Everest alone?

I'm curious, has there been anyone who has successfully scaled the majestic peak of Mount Everest without the accompaniment of a team or a guide? It's a daunting feat, considering the extreme conditions, treacherous terrain, and the sheer isolation one must face during such an endeavor. Has any individual dared to take on this challenge solo, braving the elements and pushing their limits to reach the summit of the world's highest mountain?