Fill four foundations that each swallow a whole suit twice over, holding back every second Ace until the first King lands, across two decks with a 90% win rate.

Thomas Warfield's two-deck take on FreeCell. Surprisingly, there are only four foundation piles instead of eight: each one takes a whole suit through two trips around the ranks, so you can't play a suit's second Ace until its first King is already down. It's a simple game, with a 90% chance of winning, and skill counts for more than luck.
Similar games include FreeCell Solitaire, Triple FreeCell Solitaire, FreeCell Duplex Solitaire, Repair, FreeCell Four Deck, Forecell, and Big FreeCell.
If you run into anything odd or have an idea that would make the game better, please contact me.
Have fun!
4 foundation piles: Build up in suit from Ace to King, wrapping to Ace and then to King again, until each pile has 26 cards. An Ace of each suit is dealt here at the start of the game.
6 cells: Each cell holds one card. The card can be played on the foundations or the tableau.
10 tableau piles: The piles are constructed from high to low with alternate colors. The top card can be used on the foundations, cells, or any other tableau pile. Move groupings of cards if they are in alternate color order and there are enough open cells for the cards to be moved separately. Any card can fill an empty pile. At the start of the game, each pile is given ten cards.
There are four foundation piles.
Each foundation pile is handed an ace at the start.
A card can be added to a foundation pile only if it's one rank higher and the same suit as the pile's current top card, so the only card that fits on a 6 of diamonds is a 7 of diamonds. You can wrap the foundation to play an ace on a king. You may resume with another ace once the entire sequence has been formed on a pile.
The top card of each foundation can be moved back into play if another pile will accept it.
Six cells, all empty at the start.
One card can be stored in each cell. Any available card can be played into any available cell. Cell cards can be played back to the tableau or the foundation.
10 tableau piles of ten cards each. Every card is dealt face-up.
A card can be added to a tableau pile only if it's one rank lower and the opposite color of the pile's current top card, so the only cards that fit on the 9 of diamonds are the 8 of spades and 8 of clubs.
Cards on the tableau that are not covered by another card can be played onto the foundation, an empty cell, or any other tableau pile.
Any card can fill an empty slot in the tableau.
Technically, only one card may be moved at a time, but because super-moves are allowed, we will allow you to move sequences when there are enough vacant cells or tableau columns to achieve the same result with a single card move.