Last updated: March 2026
What Is Klondike Solitaire?
Klondike Solitaire is the most popular version of the classic one-player card game. It's the solitaire variant that was bundled with Microsoft Windows and became one of the most-played computer games in history.
The objective is simple: move all 52 cards to four foundation piles, one per suit, ordered from Ace to King. You build the foundations by arranging cards in the tableau — stacking in descending order with alternating colors.
This free online version includes drag-and-drop, unlimited undo, auto-complete detection, move counting, and a timer. No download, no ads, no signup — just classic solitaire.
Key Features
Smooth drag and drop. Move cards naturally with mouse or touch. Cards snap into place and invalid moves are rejected with clear visual feedback.
Unlimited undo. Made a mistake? Undo as many moves as you want to try a different strategy without starting over.
Auto-complete. When all cards are face-up and the game is essentially won, auto-complete finishes the game for you with a satisfying animation.
Clean, ad-free experience. No pop-ups, no banner ads, no interruptions. Just you and the cards.
Frequently Asked Questions
What is Klondike Solitaire?
Klondike Solitaire is the classic version of solitaire that most people know. The goal is to move all 52 cards to four foundation piles, sorted by suit from Ace to King. It's the version that was included with Windows for decades.
How do I win at Klondike Solitaire?
Build the four foundation piles from Ace to King by suit. In the tableau, stack cards in descending order with alternating colors. Reveal hidden cards by moving the cards on top of them. Use the stock pile when you run out of moves.
Is every game of Klondike Solitaire winnable?
No. Studies suggest roughly 80% of Klondike Solitaire deals are theoretically winnable, but the actual win rate for most players is much lower — typically 10-20% depending on skill and strategy.
Can I play on my phone?
Yes. This version is fully responsive with touch-friendly controls. Tap to move cards or drag and drop them. The layout adjusts automatically to your screen size.