Cake Vs. Pie: Fail Event. GG Nexon.

That's one way of looking at it.
Another would be to say that you need less than two victories a day, each preceded by donating 401 cake/pie pieces, to get that chair.

Not that I have a chance. Those towns lag me even when they're empty.
I wish the bosses spawned at random, in all towns, like two years ago.

Well, the fact that I wanted to get each of the chairs on two character means that would be impossible. So I am screw on getting chairs once again. Fun.

Plus, Nexon for some reason likes making event chairs untradable.