Geeks are logical, aren't they?  And Su Doku is a logic puzzle...

I used to be addicted to the hard Su Doku in the NZ Herald, but it isn't what it used to be.  It used to be really hard, but now I finish it in a few minutes, and it's quite unsatisfying.  It used to be harder than the Times Fiendish, but not quite the Super Fiendish.

Anyone agree?  Or, alternatively, can anyone suggest a better forum for this?