2 Decks. Very Easy (97%). Mostly Luck.
To move all the cards to the .
|•||8 piles (across top) - build the first 4 piles from Ace to King (one for each suit), the last 4 from King to Ace (one for each suit).|
|•||20 piles (below ) - top card is available for play on the only. Each pile may contain up to 2 cards. Spaces are filled automatically from the . At the start of the game 1 card is dealt face up to each pile.|
|•|| (top left, face down) - Turn over 1 card to the by clicking. One .|
|•|| (below ) - Top card is available for play on the or .|
Grandfather is a 2 deck version of Sir Tommy and is closely related to Twenty. It is a very simple game to play and win.