Using only two landscapes, at most one of which is a Way, you can buy 8xProvince on turn 4. (Such kingdoms conform to the Menagerie rule book's randomization recommendations.)
SPOILER WARNING: there are no spoiler tagsShuffle luck required:
- Open 4/3 or 3/4
- Your third hand is 1st buy, 2nd buy, 2xCopper and at most one Estate (in retrospect, this can be relaxed to "hit $5 except in a particularly bad way")
- One very friendly shuffle near the end
The key ideas:
- Use Stockpile/Gamble to get a good chunk of money
- Use Cavalry/10xDestrier to play 10xStockpile for $30 instead of gambling them for $10.
- I think this can get to $56 and enough buys for 7xProvince and a 3-pile, with merely quite good shuffle luck.
- Use Animal Fair with Gamble to turn actions in hand into net +$2 per card trashed (and gaining buys)
- Use free Wayfarers as Animal Fair fodder.
- This gets to 8xProvince, using obscene shuffle luck.
The steps:Open Stockpile plus Bounty Hunter.
Exile Estate with Bounty Hunter on turn 3, play Stockpile and buy Stockpile plus Stampede.
On turn 4, draw 2xEstate, 5xCopper and 3 random among {2xCopper, 2xStockpile, Bounty Hunter}
Play everything in your deck except 2xEstate, by buying 2xGamble.
That is, play 6xCopper, 2xStockpile and Bounty Hunter exiling Copper, for $(15 - 4) = $11 and 3 buys.
(If you have Bounty Hunter in hand: play
it, exiling Copper, and all treasures, for enough to Gamble twice to play the last treasures. If you don't have Bounty Hunter in hand, reserve one Copper, play the other 4xCopper you were guaranteed to draw, plus all other treasures, with enough money to Gamble the rest into play. Either way you play your entire deck minus the exiled Copper and minus 2xEstate, and have 1 or 2 actions left depending on whether you gambled Bounty Hunter or not.)
(Your turn three hand can also be Bounty Hunter, Stockpile, 3xCopper; exile a Copper in turn 3 and an Estate in turn 4 instead. That exiles the same two cards, for +$3 each time, and you're guaranteed to have all Estates in hand so they don't interfere with Gamble. TL;DR: it's the same, it doesn't matter)
Buy Stockpile, gamble NxStockpile for net +$0 and +2 buys (N=3 initially). Repeat this a total of 7 times, leaving one Stockpile in the supply.
This nets you $(0 + ... + 6) = +$21 and +(2 + ... + 8) = +35 buys. You have $32 and 38 buys. [You can win now by 4-piling Estate, Stockpile, Destrier, Wayfarer, even if there are 12 Estates.]
Buy Stockpile (discarding 9xStockpile), 10xDestrier, 8xWayfarer, Cavalry. You have $25 and 18 buys. Draw 2xDestrier off Cavalry's on-gain. [If I cheat-shuffle, the deck is Destriers then Stockpiles then Cavalry then Wayfarers. Less rigid shuffles will do, but not by much. This is where the obscene shuffle luck happens.]
Play 10xDestrier for a hand of 10xStockpile, Cavalry, Wayfarer. Play Wayfarer drawing 3xWayfarer.
Play 10xStockpile. Have $55 and 28 buys.
[You could have $56 if you had bought a Copper and no Wayfarers, with only very good shuffle luck. This buys 7xProvince which is majority VP if you don't put cursers in the kingdom, and you can also three-pile Stockpile, Destrier, Wayfarer on top of this.]
Gamble a Wayfarer into a hand of Cavalry+6xWayfarer, and $53.
Buy 7xAnimal Fair by trashing your hand (you have 21 buys).
Gamble all of them, to hit $67 (each is net +$2, total +$14) and at least 21 buys.
Buy 8xProvince. Optionally buy Estate and the Curse pile.
Cards used: Bounty Hunter, Stockpile, Destrier, Wayfarer, Cavalry, Animal Fair // Gamble, Stampede
Come to think of it, you probably don't need Bounty Hunter. Just open 2xStockpile, buy Stampede in turn 3 and draw deck on turn 4. You need a bit of shuffle luck to draw 3xEstate and not have them interfere with your gambling, and you need to spend at most one Stockpile when you buy Stampede since you need 2 buys to kick off. If you spend one Stockpile on turn 3, you have an 11-card deck with $10 in it, out of which you need to spend $2 on a Gamble. So you start with $8 instead of my $11, and end with $64 instead of $67.
You can also wiggle the Wayfarer business a bit: the terminal one can draw 3xCopper instead of 3xWayfarer, and you can gamble twice instead of once if you buy 9xWayfarer. This transformation nets $1. If you gambled the turn 4 Bounty Hunter you have 2 actions and not just 1, so you can draw 6xCopper with 2xWayfarer, gamble twice and draw the remaining 6xWayfarer dead. This nets an additional $3 on top of the $1. So I think you can hit $71, and also empty three piles before playing Animal Fair (spending an additional 8 buys gross, 1 buy net).