Originally posted by MS Warehouse
IIRC they were his official guard, that's why the decoy wasn't obvious to the sith since it looked official. As far as what Anakin knows, obiwan fought a defensive battle against anakin so I'm not sure what your point is. That Anakin knows how to defend? At the end, anakin is both hindrance as well as his ill fated attempts at flying ala MJ netted obiwan a victory. I know obiwan has more than defeating anakin because that wasn't super impressive but he's not getting through krayt's defenses. If he wins, it will be a drawn out battle putting him on the defensive and wearing krayt out.
They looked like they were, but they were just Knights guarding a decoy.
Anakin fought alongside Kenobi several times, and knows both his defensive techniques weaknesses, and offensive techniques weaknesses, like the back of his hand. His mental fortitude lessened so he couldn't abuse it as well as Kenobi, but stalemating someone who fodderizes Drallig and can easily collapse and rip apart massive statues is a fairly good feat, I'd say.
And conversly, Krayt isn't scratching Kenobi with anything other than unarmed strikes, which Obi-Wan can deal with. So really, it'll be an impasse, of sorts, until Krayt tires or Kenobi takes the initiative and slices him up.