DracoSuave
First Post
In the movement restrictions on charge it says you must move to the closest square to attack the enemy. This implies your choice of target occurs when you declare the charge. I would say that the readied charge would invalidate this choice of targets unless the character was charging the kobold that readied the action.
It still might be possible to move to that square however, in which case the kobold has not negated the character's movement, just complicated it; the action therefore must continue as declared. Just be prepared for the players to learn this tactic, as it actually pretty good.