Originally posted by Razielim
Yes, he was blocking the blades but you claimed he had "no trouble" blocking them. Although he was keeping up with them, it's premature to say he was doing so without exerting himself.
After the initial attack by Anakin and Obi-Wan, Dooku settled, and said "I've been looking forward to this." With, if not exactly a grin on his face, definitely a look of excitement/enjoyment. If he had found it difficult to block both their blades, then he would not have made the comment, and would have looked concerned. The fact he seperated them was because he was supposed (so he thought) to be fighting Anakin, not Obi-Wan, and, although he could clearly deal with them both at once, he was just a) keeping things simple for himself and b) taking Obi-Wan out of the fight so he could then fight Anakin one on one, so Obi-Wan could not help him (with what Dooku thought was a test)
Originally posted by Razielim
Yes, I agree. But in the movie we can't tell if he's tired or not... The novelization and the script comes in to clarify.
I agree, the novelization can clarify some aspects, but, from the movie, I do not think Dooku did look tired, simply overpowered by a younger man.