The one card in the reserve remains face down until the stock is depleted, at which point it is turned face up, becoming your "last chance" for victory.
One deck of cards
Object: Play all cards to the foundation.
Tableau: 7 piles.
You can play any card here regardless of rank or suit.
You can not play to the tableau from another tableau pile. However, you can fill empty piles from the tableau.
You can not play to the tableau from the reserve.
You can pick up and play the top card of a pile.
Reserve: One card.
You can not play this card until the stock has been depleted, at which point it will flip face up.
Stock: Holds the 44 undealt cards.
Turns the top card face up.
Foundation: 4 piles.
Play "ace" cards to empty piles.
Rank is built up. Cards must match the same suit.
There are 7 tableau piles rather than 6, each dealt a card.
Empty tableau piles can be filled from another tableau pile.
There is one reserve card, kept face down until the stock is depleted.