In how many turns can you end the game by giving all Provinces to your opponent in a single turn? For the purpose of this puzzle assume that your opponent just discards his hand every turn and that you have perfect shuffle luck.
If you play a Masquerade your opponent will pass in the following order Estate, Hovel, Overgrown Estate, Copper, Necropolis (delete Shelter or Estates from this list depending on setup).
As a baseline 9 turns:
1) Buy Iron Works (IW)
2) Buy Chapel
3) Chapel: Trash 3 Estate, 1 Copper
4) IW, gain Throne room (TR), buy Squire
5) Chapel: Trash 3 Copper, 1 Squire, gain Scrying Pool
6) TR, IW, gain TR, Bridge (Br), buy Ambassador (Amb)
from now on my deck consists of 3 Copper + action cards, so that I can draw my deck every turn with SP
7) SP, TR, TR, Br, IW, gain TR, Br, buy IW
8) SP, TRx3, Brx2, IW, IW, gain King's Court (KC), KC, Province, buy Amb, Amb
9) SP, KCx2, Ambx3
Merry Christmas