I can do hardest mode without Chancellor/Moat in the kingdom. I'm not sure if that counts.
Kingdom: Chapel, Black Market, Doctor (Bane), Watchtower, Great Hall, Procession, Ironworks, Catacombs, Highway, Border Village, King's Court
On turns 1-9, you use Chapel and Doctor to trash your deck down to just 2 Ironworks, 2 Processions, and a Chapel. This is always possible; the proof is left as an exercise for the reader (which is a fancy way of saying I don't want to list every possible case in this post). Someone should probably verify this though, because it is quite possible that I made a mistake.
Notational warning: I letter each card so that generally, the first one you get is A, then B, etc. (i.e. the first Procession I get is Procession A, the next one is Procession B, then Procession C, etc.) However, I think a few of the cards mixed up the letterings and I was too lazy to fix them. For example, I think you get Catacombs G before Catacombs D-F. Since the labels are arbitrary, it doesn't affect the solution, but it might look funny. Similarly, Great Halls A and B don't exist because of herp derp. You can get some Great Halls where I say to get Estates at the end, but it doesn't matter.
Notational warning #2: Upon previewing my post, I see that typing three ?'s comes up as
, (when I first typed it up I had three ?'s) so I guess that will be the symbol that I use when you draw cards that can't be determined because of the shuffle. Usually when this happens, you draw the rest of your deck shortly after so that I know what is in your hand again. This happens a lot at the end when it doesn't matter because you're ending the game anyway.
On turn 10, you have this megaturn:
Your hand is Procession A, Procession B, Ironworks A, Ironworks B, Chapel A
Play Procession A:
Play Procession B twice:
Play Ironworks A twice:
Gain Watchtower A
Gain Great Hall C, re-shuffling and drawing either Great Hall C or Watchtower A
Trash Ironworks A
Gain Catacombs A
Play Ironworks B twice:
Gain Procession C
Gain Procession D
Trash Ironworks B
Gain Highway A
Trash Procession B
Gain Catacombs B
(If Great Hall C is in hand, play it to draw Watchtower A)
Play Watchtower A:
Draw Catacombs A, Catacombs B, Procession C, Procession D, Highway A
Play Highway A
Play Procession C:
Play Procession D twice:
Play Catacombs A twice
Trash Catacombs A
Gain Procession E
Gain Border Village A
Gain Catacombs C
Play Catacombs B twice
Draw Procession E, Border Village A, Catacombs C
Trash Catacombs B
Gain Procession F
Gain Border Village B
Gain Procession G
Trash Procession D
Gain Catacombs G
Play Procession E:
Play Catacombs C twice:
Draw Procession F, Procession G, Border Village B, Catacombs G
Trash Catacombs C
Gain Procession H
Gain Border Village C
Gain Catacombs D
Play Procession F:
Play Procession G twice:
Play Border Village A twice:
Draw
,
Trash Border Village A
Gain King's Court A
Play Border Village B twice:
Draw
, King's Court A
Trash Border Village B
Gain King's Court B
Trash Procession G
Gain Catacombs E
Play King's Court A:
Play Procession H three times:
Play Border Village C twice:
Draw King's Court B, Catacombs E
Trash Border Village C
Gain King's Court C
Play Catacombs D twice:
Draw King's Court C
Trash Catacombs C
Gain Ironworks C
Gain Border Village D
Gain Procession I
Play Catacombs E twice:
Draw Ironworks C, Border Village D, Procession I
Trash Catacombs E
Gain Procession J
Gain Border Village E
Gain Catacombs F
Play King's Court B:
Play King's Court C three times:
Play Procession I three times:
Play Border Village D twice:
Draw
,
Trash Border Village D
Gain King's Court D
Play Catacombs G twice:
Draw
,
Trash Catacombs G
Gain Ironworks D
Gain Border Village F
Gain Highway B
Play Border Village E twice:
Draw
,
Trash Border Village E
Gain King's Court E
Play King's Court D three times:
Play Procession J three times:
Play Catacombs F twice:
Draw
,
Trash Catacombs F
Gain Ironworks E
Gain Border Village G
Gain Black Market A
Play Border Village F twice:
Draw
,
Trash Border Village F
Gain King's Court F
Play Highway B twice:
Draw
,
Gain Border Village H
Gain Ironworks F
Play King's Court E three times:
Play King's Court F three times:
Play Ironworks C three times:
Gain Border Village I
Gain Ironworks G
Gain Border Village J
Gain Ironworks H
Gain Ironworks I
Play Ironworks D three times:
Gain Ironworks J
Gain Duchy A
(worst case) Draw Duchy A
Gain Duchy B
Draw
(not Duchy B, because of re-shuffle)
Play Ironworks E three times:
Gain Duchy C
Draw
Gain Duchy D
Draw
Gain Duchy E
Draw
Play Black Market A three times:
Buy Silk Road
Buy Tunnel
Buy Duke
There is at least one Ironworks in your hand; play it three times:
Gain Duchy F
Draw
Gain Duchy G
Draw
Gain Duchy H
Draw
There is at least one Ironworks in your hand; play it three times:
Gain Great Hall D
Draw
Gain Great Hall E
Draw
Gain Great Hall F
Draw
There are three Ironworks in your hand; play one of them three times:
Gain Great Hall G (if you run out of Great Halls to gain, just gain Estates)
Draw
Gain Great Hall H
Draw
Gain Estate D
Draw
There are two Ironworks in your hand; play one of them three times:
Gain Estate E
Draw
Gain Estate F
Draw
Gain Estate G
Draw
Play the last Ironworks in your hand three times:
Gain Estate H
Draw
Gain Estate I
Draw
Gain Estate J
Draw
You should have around 53 points, which is enough to beat the Lucky Chancellor. Silk Road should be worth at least 6, Duke should be worth 8.
Someone who has cards on Goko should verify my solution, I don't trust myself to get through a megaturn like that by hand without any mistakes. I would imagine though that even if there are mistakes, it can easily be adjusted.
This gets me wondering, with worst case shuffle luck, what is the fastest you could empty the supply?