Why did Anakin lose against Obi-Wan in Revenge of the Sith?

In Star Wars: Revenge of the Sith, Anakin probably lost his duel to Obi-Wan on Mustafar because he wasn’t using a key part of his power. He lost because he was over confident and thought he could jump over Obi-wan without Obi-wan being able to reach him.

Why did Anakin and Obi-Wan go to Mustafar?

After learning of Skywalker’s downfall with Grand Master Yoda at the Jedi Temple, Kenobi arrived on Mustafar, where he attempted to reason with the fallen Jedi, not believing the Sith Master known as Darth Sidious, revealed to be Emperor Palpatine, had taken control of Skywalker’s mind.

What lightsaber technique did Obi-Wan use?

Obi-Wan originally used Form IV commonly known as Ataru like his master, Qui-Gon Jinn. After Qui-Gon’s death, Obi-Wan realized the flaws of Form IV and instead became a practitioner of Form III, Soresu, which is the most defensive of the seven lightsaber forms.

Why did Anakin lose his duel to Obi-Wan on Mustafar?

In Star Wars: Revenge of the Sith, Anakin probably lost his duel to Obi-Wan on Mustafar because he wasn’t using a key part of his power. Anakin’s lava-filled duel with Obi-Wan Kenobi on Mustafar is one of the best and most consequential duels in all of Star Wars.

Did Obi-Wan know Vader was still alive on Mustafar?

When Obi-Wan defeats Vader on Mustafar, he leaves Vader alive. Sure, he’s missing his legs and has just caught on fire; but when Obi-Wan walks away, Vader is still alive. I think it’s likely that Obi-Wan would have sensed that Vader was still alive until he was a fair distance away from Mustafar, saving Padme.

Is Anakin Skywalker a good friend to Obi Wan?

Anakin was Obi-Wan’s best friend, student and a war buddy who saved his life many times. NOT someone you would be terribly interested in offing. If you recall the fight, he tried to TALK Anakin off of jumping him from a disadvantageous position which resulted in him being all cut up:

Why can’t Obi-Wan kill Darth Vader?

He has to; the next three movies make no sense if Vader dies on Mustafar. So, Obi-Wan can’t kill him. Whatever machination the script-writers needed to get Vader so badly disfigured he couldn’t live outside his suit, but NOT kill him, was the order of the day.