|Win Percentage:||Getting Stat...|
|Win Ratio:||Getting Stat...|
|Fastest Win Time:||Getting Stat...|
|Average Win Time:||Getting Stat...|
|Highest Score:||Getting Stat...|
Move all cards to the eight Foundation piles in the same suit. The starting Foundation rank changes from game to game.
Using two decks, a single card is dealt to the first Foundation. Next, each of the six Columns are dealt one card. Finally, 40 cards are dealt to the Reserve Pile. Only the last card in the Reserve Pile is face up.
Foundations are built UP and IN SUIT starting with the rank of the card dealt to the first Foundation and ending with the rank one less. For example, if a 3 of hearts was dealt to the first Foundation, then the 4 of hearts would be played onto the 3, then the 5, 6, 7, 8, 9, 10, J, Q, K, A, and 2 of hearts. Each Foundation in this example must also start with a 3.
Columns are built DOWN in ALTERNATING COLOR. For example, a red 6 may be placed on a black 7.
All face up cards in any Column are available for movement to another Column as long as the above build rule is followed. For example, a red Queen, black Jack, and red 10 can all be moved to a black King because the connecting cards (the K and Q) follow the rule that cards are built Down and in Alternating Color.
The topmost card in any Column is available for play to either another Column or a Foundation.
Empty Columns may be filled with any card or group of cards that may be validly moved.
Cards from the Stock are flipped three at a time to a Discard Pile. When no cards remain in the Stock, the cards from the Discard Pile can be flipped over and may be played again an unlimited number of times.
Only the top card of the Discard Pile may be played elsewhere. When a card from the Discard Pile is played then the new top card can also be played.
One extra Column was added to this game on April 16, 2009 because it was extremely difficult with just five Columns.
This game was renamed as Double Canfield 40 so that Double Canfield can use the most common rules of dealing only 13 cards to the Reserve with 5 Columns.