Pro Colorado Solitaire is a free 2 deck card game for PC. It features 20 piles that can have cards from the stock pile placed on them without regard for rank or suit. There are also 8 foundations in the game.

One of the unique features of Pro Colorado Solitaire is the fact that it's played with 20 piles. Players are not restricted by rank or suit when placing cards from the stock pile on the piles. This brings a new level of excitement to the game that traditional solitaire games lack.
Another great feature is the game's 8 foundations. Out of the 8 foundations, 4 are built-up and the other 4 are built-down by suit. This creates more opportunities for players to strategize and plan their moves.
But what takes the game to the next level is the modification to make it more difficult than traditional Colorado Solitaire. 4 Kings and 4 Aces have been moved to the bottom of the deck, making it more challenging for players to complete the game.
Overall, Pro Colorado Solitaire is a game that's easy to learn but hard to master. Anyone who loves a good card game will enjoy this software. It's a great way to unwind and pass the time.
Version 1.0: New Release