About Klondike Solitaire

Last updated September 13, 2026

klondikesolitaire.com is a single-purpose site: one classic Klondike Solitaire game that plays instantly in the browser, on any device, with no download, no account and no ads. It has been online since 2024 and is built and maintained by a single independent developer, who also writes the blog.

The game

• Standard Klondike rules with a single 52-card deck, in Turn 1 (draw one) and Turn 3 (draw three) modes.
• Winnable deals. Not every random Klondike deal can be won. New deals here are checked by a built-in solver that runs in your browser; when the ✓ mark is shown above the board, that deal has a proven winning line.
• Undo, hints, double-click to foundation, auto-complete, and a game that resumes where you left it, including offline.
• Historical card decks. Besides the default deck, you can play with reproductions of antique decks from public-domain library scans. Browse them at Playing Card Decks.

How the site is built

The game is written in TypeScript with no framework, rendered with plain HTML elements and a single sprite sheet, and served as static files. The solver and sprite preparation run in web workers so the page stays responsive. There is no server-side game logic and no user database; your statistics and saved game live only in your browser. Details of what is stored are in the privacy policy.

Contact

Found a bug, have a suggestion, or want to talk about the solver or the decks? Write to [email protected]. Bug reports are most useful with your browser, device, and what you were doing when it happened.