Foundations
How to Play Twenty Solitaire

Twenty runs two decks through a dual-foundation system: Ace foundations climb upward while King foundations count down. Click the stock to deal a card onto each of twenty reserve piles, where only the topmost card of each pile is in play.
Setup
- Use two full decks (104 cards total)
- Create 8 foundation piles: 4 for Aces (building upward) and 4 for Kings (building downward)
- Deal one Ace and one King of each suit to start these foundations
- Deal one card face-up to each of 20 reserve piles
- Place the remaining 76 cards in the stock
How to play
- Build the Ace foundations upward by suit (Ace through King)
- Build the King foundations downward by suit (King through Ace, wrapping around)
- Click the stock to deal one card onto every reserve pile at once; only the top card of each pile can be played, and you can't manually build a card onto another reserve card
- You can move a card onto an empty reserve pile
- Empty reserve piles are automatically refilled from the stock
- You get only one pass through the stock with no redeal
- When a card cannot be built on anything, it moves to the foundation automatically
How to win
Objective: Move all cards to the foundations
You win when all cards are in the foundations. The game ends when you run out of stock cards and can't move any more.
Tips
- Expose reserve cards strategically by clearing piles that block key cards
- Since there's no redeal, plan ahead about which stock cards you'll need
- Balance building both foundations to maximize your options
Play Twenty free on Windows
CardTray is a free solitaire app for Windows that includes Twenty alongside 300+ other games. It saves every move as you play, so you can close the window and pick the game up later, replay any deal, and take on a new Daily Challenge deal every day. Browse every game in the Game Gallery.
Related games
More games from the Foundations family:
- Aces and Kings — Use a double deck to build four foundations up from Aces and four foundations down from Kings simultaneously.
- Acey and Kingsley — A variant of Aces and Kings where foundation base cards (Aces and Kings) are dealt to you at the start instead of appearing as you draw them.
- Alexander the Great — A fan-layout game with four foundations split between Aces (red suits) and Kings (black suits), each building in opposite directions.
- Alternate — Alternate uses a single deck with four foundations that build in opposite directions: two ascending in alternating colors and two descending in alternating colors.
- Bisley — All 52 cards are laid out face up at once.
The tool for this — Game Gallery
Every game in one library: Klondike, Spider, FreeCell, Pyramid, Golf, Yukon and three hundred more. Each one shows a preview of its opening deal and how often you've played and won it. Learn more about the Game Gallery.
Windows 10/11 (x64) · Free · No account