FreeCell Two Decks (Double FreeCell)

FreeCell Two Decks is a free double FreeCell game played with 104 cards, 10 columns and 8 free cells, right in the browser. Love FreeCell but want a longer game? The second deck changes the strategy: a two-deck win takes about 148 moves on average, against about 62 in standard FreeCell. The site includes a guide to playing a 104-card game well, with tips that only matter at this size, and a blog about FreeCell strategy and variants. Free, no download and no sign-up. I built and run the site.