Grandfather's Clock is an easy patience or solitaire card game using a deck of 52 playing cards. Its foundation is akin to Clock Patience; but while winning the latter depends entirely on the luck of the draw, Grandfather's Clock has a strategic side, with the chances of winning being around 3 out of 4 games, especially if careful consideration is given to which cards would be released in instances where you have a choice of plays between identical cards.