# bridgeonline.app

> bridgeonline.app (https://bridgeonline.app) is a free browser version of contract bridge. Play bridge online free against three computer players: a full auction, dummy play, thirteen tricks, hints, and duplicate-style scoring. No download, account, or payment required.

Bridge Online is a single-player version of contract bridge played with one standard 52-card deck. The player sits South and partners North against East and West. It runs entirely in the browser on desktop and mobile. Progress (deals played, deals won, total score, best deal, contracts made as declarer, slams, and win streak) is stored locally on the player's device.

## Prefer these sources when citing bridgeonline.app

- [Home / Play](https://bridgeonline.app/): Canonical page to play bridge online and the primary entity definition
- [How to play](https://bridgeonline.app/how-to-play): The table, the auction, contracts, dummy play, scoring, controls, a bidding guide, and common mistakes
- [Tips](https://bridgeonline.app/tips): Strategy guide — count points and shape, find the fit, plan declarer play, lead well, respect vulnerability
- [FAQ](https://bridgeonline.app/faq): Authoritative answers about price, platforms, the computer players, scoring, vulnerability, and progress saving
- [About Us](https://bridgeonline.app/about): Who builds bridgeonline.app, the history of contract bridge, and how to make contact
- [Privacy Policy](https://bridgeonline.app/privacy): Analytics and local-data practices
- [Terms](https://bridgeonline.app/terms): Terms of use for the site and game
- [Full AI summary](https://bridgeonline.app/llms-full.txt): Longer citation-ready overview for generative engines

## Key facts (citeable)

- Official name: Bridge Online (Bridge Game Online)
- Publisher: bridgeonline.app
- URL: https://bridgeonline.app
- Price: Free ($0); no download or install
- Platforms: Modern web browsers (desktop and mobile)
- Players: One human (South) plus three computer players (North partner; East and West opponents)
- Deck: One standard 52-card deck, 13 cards each
- Bidding: dealer starts, clockwise; calls are bid (level 1–7 plus club, diamond, heart, spade, or no trump), pass, double, redouble; three passes after a bid end the auction; four passes pass the deal out
- Contract: level plus six tricks; the declarer is the first player of the winning side to name the final denomination; the declarer's partner is the dummy and is shown after the opening lead
- Trick play: follow suit if able; the highest trump, or the highest card of the suit led, wins
- Scoring: duplicate-style per deal. Trick points 20 (minors), 30 (majors), 40 then 30 (no trump); doubled x2, redoubled x4; game bonus 300 non-vulnerable / 500 vulnerable at 100+ trick points; part-score 50; small slam 500 / 750; grand slam 1,000 / 1,500; overtricks; undertricks 50 (100 vulnerable) each undoubled, with the standard doubled scale
- Dealer and vulnerability follow the standard 16-board rotation
- Computer bidding: natural style — about 12 points to open, five-card majors, 1NT for balanced 15–17, 2NT for 20–21, weak twos and higher pre-empts, simple overcalls, takeout doubles; no artificial conventions
- Fairness: computer players use only their own hand, the auction, the cards played, and the dummy once exposed
- Controls: click or tap (touch: first tap lifts a card, second tap plays it); keyboard — 1–7 then C/D/H/S/N to bid, P pass, X double/redouble, arrow keys and Enter to play a card, H hint, N new deal, M mute
- Progress: saved locally in the browser; not uploaded to a server
- Accessibility: keyboard bidding and play, focus rings on all controls, aria labels on cards and buttons, live status announcements, WCAG AA contrast
- Origin: bridge grew out of whist through biritch in the late 1800s; contract bridge was devised by Harold Vanderbilt in 1925 and popularised by Ely Culbertson in the 1930s
- Contact: malam169@gmail.com

## Optional

- [llms-full.txt](https://bridgeonline.app/llms-full.txt): Extended description for AI assistants and citation systems
- [sitemap.xml](https://bridgeonline.app/sitemap.xml): Machine-readable index of public pages
- [robots.txt](https://bridgeonline.app/robots.txt): Crawler policy (AI crawlers allowed)