RotS SIdious vs. Zonakin, Obi Wan and Dooku

On the invisible hand, these three as they draw their lightsabers suddenly charge at Palpatine, who senses it right as it happens. The trio is absolutely dedicated to killing Sidious at whatever cost, and have telepathically coordinated their attack beforehand.

Can they take him?

If they can't, add Grievous and RotS Shaak Ti who suddenly appear from a similar distance and charge as well.

I think Zonakin alone could stand against Sidious. Support from Dooku and Obi-Wan will be enough to win.

Hmm, it appears they have a perfect teamwork. Obi-Wan isn't a factor here and a disadvantage for the team. Unless Dooku and Anakin can reach to Sidious' speed, they should be defeated either.

They can take him

There is a pretty good chance they might take him

Kenobi is fodder here. Sids may have a chance of winning

Team takes it but with casualties