[3] Prodanov was the first Bulgarian to climb Mount Everest,[2] doing it via the most difficult way—the West Ridge—as well as alone and without oxygen.

Climbing the summit at 18:15 local time, he had to descend overnight and got lost shortly after that.

On the next afternoon, he reported he had lost his gloves and soon would be unable to hold the radio button long enough to talk.

His niece, Mariana Prodanova Maslarova,[4] attempted to climb Mt.

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