Seems to me the intended solution MIGHT be 2 King's Court, 2 Saboteur, 5 highways, and several Market/Grand Market. i.e. you highway everything down, to where provinces cost 3, KC a KC a market kind of card (well you don't really need to KC these... just need 4 buys at the end) a sab a sab. So that's 6 Saboteur plays, which can knock out 6 provinces each*, which they can turn into estates (I guess), so that's 30 points down for each of them. And then you snap up 4 provinces with your one KC'ed Market, giving you a net swing of 54 points over each of them. Neat. Unfortunately, if they have provinces in their hands, it doesn't work, if you draw all your non-highways before playing all your highways, it doesn't work, and 12 provinces to knock out from them also just means it doesn't work. Which means... back to the drawing board? Except I think something similar will be right, only you need to gain a lot of the pieces partway through. So you need to have ironworks, KC, Highway, Saboteur in the kingdom. Your deck consists of... highway highway highway, KC, KC, Ironworks? And some drawing card like lab is going to help a good bit. Heck, maybe even... margrave would be nice. You'll have enough actions. And with margrave, you can knock them down to 3 cards in hand. So they get to protect less. And they could have some kind of defenses, which is going to stop a lot of stuff... well, 10 plays of masquerade can knock anything out of their hands, but you'd need nothing in your hand, and then you still need to be able to play everything, which... you just can't ensure. I'm very confused.