# Cards JD

> Cards JD (cardsjd.com) is a free website for playing classic card games in the browser: Cribbage, Spades, Hearts, Gin Rummy, Solitaire (including two-player Double Solitaire), Speed (Spit) and Nertz (Pounce). Most games can be played against computer opponents or online against friends and other players, with no download needed. It is made by JD Software LLC, which also publishes the same games as apps for iOS, Android and Windows.

Key facts:

- Price: free to play in the browser (ad-supported). App versions are available for iOS, Android and Windows.
- Modes: single-player against computer opponents, and online multiplayer with friends or other players, depending on the game.
- Each game has a rules page ("How to Play") and a strategy guide, written for beginners and experienced players.
- Developer: JD Software LLC. Cribbage strategy articles are written by Jim Donahue.

## Games

- [Cribbage](https://cardsjd.com/cribbage/): Play Cribbage online against the computer, friends or other players, with automatic scoring and large, readable cards.
- [Spades](https://cardsjd.com/spades/): Four-player partnership trick-taking game with bidding and nil bids, against bots or friends.
- [Hearts](https://cardsjd.com/hearts/): Classic four-player Hearts: pass cards, avoid the Queen of Spades, or shoot the moon.
- [Gin Rummy](https://cardsjd.com/ginrummy/): Two-player Gin Rummy with melds, knocking and going gin; also on iOS, Android and Facebook.
- [Solitaire](https://cardsjd.com/solitaire/): Double Solitaire, a two-player Klondike race to the foundations, plus classic single-player Klondike.
- [Speed](https://cardsjd.com/speed/): The fast two-player card game also called Spit or Slam, with online multiplayer.
- [Nertz](https://cardsjd.com/nertz/): Real-time multiplayer Nertz, also known as Nerts, Pounce or Racing Demon.

## Rules (How to Play)

- [How to Play Cribbage](https://cardsjd.com/cribbage/howtoplay.html): Setup, the crib, pegging, scoring and beginner tips.
- [How to Play Spades](https://cardsjd.com/spades/howtoplay.html): Setup, bidding, nil bids, bags and scoring.
- [How to Play Hearts](https://cardsjd.com/hearts/howtoplay.html): Passing, trick-taking rules, scoring and shooting the moon.
- [How to Play Gin Rummy](https://cardsjd.com/ginrummy/howtoplay.html): Drawing, melding, knocking, going gin and scoring.
- [How to Play Solitaire](https://cardsjd.com/solitaire/howtoplay.html): Klondike setup, tableau and foundation rules, draw-1 vs draw-3.
- [How to Play Speed](https://cardsjd.com/speed/howtoplay.html): The deal, side piles, play piles and the one-rank-up-or-down rule.
- [How to Play Nertz](https://cardsjd.com/nertz/howtoplay.html): The Nertz pile, tableau, shared foundations and scoring.

## Strategy Guides

- [Cribbage Strategy](https://cardsjd.com/cribbage/strategy/): Hub for counting, discarding, pegging and cribbage probability articles.
- [How to Count a Cribbage Hand](https://cardsjd.com/cribbage/strategy/howdoicountmyhandincribbage.html): Count in order: 15s, runs, pairs, flush, nobs, with point values for each.
- [Quick Counting Part 1: 15s and Complex Runs](https://cardsjd.com/cribbage/strategy/quickcountingcribbage.html): Every three-card 15, and the four run-with-pair patterns that always score 8, 10, 15 or 16.
- [Quick Counting Part 2: 15s and Pairs](https://cardsjd.com/cribbage/strategy/quickcountingcribbage-part-2.html): Combos built on A-7-7, 3-6-6, 7-4-4 and 9-3-3 that always score 8, 12, 14, 20 or 24.
- [Quick Counting Part 3: Monster Combos](https://cardsjd.com/cribbage/strategy/quickcountingcribbage-part-3.html): Big hands mixing runs, pairs and 15s, and hands built on four 5s.
- [Jacks in Cribbage](https://cardsjd.com/cribbage/strategy/jacksincribbage.html): His nobs is worth about 0.2 points on average (0.15 to 0.26); when to discard a jack.
- [How Many Cribbage Hands Are There?](https://cardsjd.com/cribbage/strategy/howmanydifferenthandsarethereincribbage.html): There are 12,994,800 possible hands; the most common scores are 4 and 2.
- [Cribbage Hand Score Odds](https://cardsjd.com/cribbage/strategy/chancesofgettingcertainscoreincribbage.html): Probability of every hand score from 0 to 29; 19, 25, 26 and 27 are impossible.
- [Is Cribbage JD Fair?](https://cardsjd.com/cribbage/fair-shuffle/): How the game shuffles and deals, what computer difficulty changes, and why random deals can look streaky.
- [Spades Strategy](https://cardsjd.com/spades/strategy/): Bidding, nil bids, bag management, trump control and partner play.
- [Hearts Strategy](https://cardsjd.com/hearts/strategy/): Passing, when to play the Queen of Spades, and shooting the moon.
- [Gin Rummy Strategy](https://cardsjd.com/ginrummy/strategy/): When to knock, building melds and managing deadwood.
- [Solitaire Strategy](https://cardsjd.com/solitaire/strategy/): Tableau management, foundation pacing and draw-1 vs draw-3 tactics.
- [Speed Strategy](https://cardsjd.com/speed/strategy/): Blocking, hand management, tempo and card placement.
- [Nertz Strategy](https://cardsjd.com/nertz/strategy/): Managing the tableau, racing to foundations and Nertz pile tactics.

## Blog

- [Blog index](https://cardsjd.com/blog/): Card game tips, comparisons and strategy articles.
- [What Is the Best Cribbage Hand?](https://cardsjd.com/blog/cribbage-best-hand.html): The perfect 29-point hand explained: 5-5-5 and a jack in hand, with the fourth 5 cut in the jack's suit.
- [How to Count a Cribbage Hand in Under 10 Seconds](https://cardsjd.com/blog/cribbage-count-fast.html): Pattern-based counting used by experienced players.
- [5 Common Cribbage Mistakes Beginners Make](https://cardsjd.com/blog/cribbage-beginner-mistakes.html): Leading a 5, forgetting nobs, poor crib discards and more.
- [Cribbage vs Gin Rummy](https://cardsjd.com/blog/cribbage-vs-gin-rummy.html): Rules, strategy depth, game length and which suits which players.
- [How to Keep Score in Spades](https://cardsjd.com/blog/spades-keep-score.html): Bids, bags, sandbag penalties, nil and blind nil scoring.
- [Spades Bidding Strategy](https://cardsjd.com/blog/spades-bidding-strategy.html): Counting sure tricks, half-tricks and reading your partner's bid.
- [How to Shoot the Moon in Hearts](https://cardsjd.com/blog/hearts-shoot-the-moon.html): When to try it and how to control the hand.
- [Draw-1 vs Draw-3 Solitaire](https://cardsjd.com/blog/solitaire-draw1-vs-draw3.html): Win rates and strategy differences between the two modes.
- [Gin Rummy vs Rummy](https://cardsjd.com/blog/gin-rummy-vs-rummy.html): How the two games differ in speed, knocking and player count.
- [Speed vs Spit](https://cardsjd.com/blog/speed-vs-spit.html): The differences between two nearly identical fast card games.
- [Nertz vs Solitaire](https://cardsjd.com/blog/nertz-vs-solitaire.html): How multiplayer racing and shared foundations change Solitaire.

## Tools

- [Which Card Game Should I Play?](https://cardsjd.com/tools/which-card-game/): A short quiz that recommends a game by player count, game length and skill level.
- [Cribbage Calculator](https://cribbagecalculator.com/): Score any cribbage hand, crib or pegging sequence (JD Software's companion site).

## Related Sites and Apps

- [Mines JD](https://minesjd.com/): Online multiplayer Minesweeper by JD Software LLC.
- [Tournament JD](https://tournamentjd.com/): Live online card game tournaments.
- [Apps on the Apple App Store](https://apps.apple.com/us/developer/jd-software-llc/id1604729535): iPhone and iPad versions of the games.
- [Apps on Google Play](https://play.google.com/store/apps/dev?id=7142050184699202854): Android versions of the games.

## Optional

- [Contact](https://cardsjd.com/contact/): Support, feedback and business inquiries.
- [Privacy Policy](https://cardsjd.com/privacy/)
- [Terms of Service](https://cardsjd.com/terms/)