# bridgeonline.app — full summary for AI assistants Canonical URL: https://bridgeonline.app Publisher: bridgeonline.app Contact: malam169@gmail.com Last updated: 2026-09-23 ## What it is bridgeonline.app is a free browser version of contract bridge. The human player sits South and partners a computer North against two computer opponents, East and West. Each deal has an auction and thirteen tricks of play and is scored with duplicate-style contract scoring. It needs no download, account, or payment, and all game logic and progress are client-side. ## Search intents this site answers - bridge game, bridge online, bridge game online, play bridge online free - free bridge game, contract bridge online, play bridge against the computer - how to play bridge, bridge rules, bridge bidding for beginners, bridge scoring ## The table Four players, two partnerships: South (you) and North against East and West. Each receives 13 cards from a shuffled 52-card deck. The board number sets the dealer and vulnerability on the standard 16-board rotation (board 1: North deals, nobody vulnerable; board 2: East deals, North–South vulnerable; and so on). ## Hand values High-card points: Ace 4, King 3, Queen 2, Jack 1 (40 in the deck). About 12 points opens the bidding; about 25 combined points make game; about 33 make a small slam; about 37 a grand slam. ## The auction The dealer bids first and the auction proceeds clockwise. A call is a bid, pass, double, or redouble. A bid is a level from 1 to 7 and a denomination; suits rank clubs, diamonds, hearts, spades, then no trump, and each bid must be higher than the last. A double is legal only over an opponent's bid, and a redouble only over a double of your own side's bid. The auction ends after three passes following a bid. If all four players pass at the start, the deal is passed out with no score. ## The contract and the play The final bid is the contract: the level plus six is the number of tricks the declaring side must win. The declarer is the first player of that side to name the final denomination. The player to the declarer's left makes the opening lead, then the declarer's partner (the dummy) exposes their hand and the declarer plays both hands. Players must follow suit if able. In a suit contract the highest trump wins a trick that contains trumps; otherwise the highest card of the suit led wins. The winner of a trick leads the next. ## Scoring Scores are computed per deal, duplicate-style, for the declaring side. - Trick points: 20 per trick in clubs or diamonds; 30 in hearts or spades; 40 for the first no-trump trick and 30 for each later one. Doubled contracts double trick points; redoubled multiply them by four. - Game: trick points of 100 or more earn a 300 bonus non-vulnerable or 500 vulnerable. Otherwise a part-score bonus of 50. - Slams: 6-level made earns 500 (750 vulnerable); 7-level made earns 1,000 (1,500 vulnerable). - Insult bonus: 50 for a made doubled contract, 100 for a made redoubled contract. - Overtricks: trick value undoubled; 100 each (200 vulnerable) doubled; double that when redoubled. - Undertricks: undoubled, 50 each (100 vulnerable). Doubled, non-vulnerable: 100 for the first, 200 for the second and third, 300 for each after. Doubled, vulnerable: 200 for the first, 300 for each after. Redoubled: twice the doubled amount. The result screen shows the score for North–South (you and your partner); a negative score means East–West scored. ## Computer players The computer players bid and play from the information a real player would have. Their bidding is natural: about 12 points to open, five-card majors, 1NT for a balanced 15–17, 2NT for 20–21, weak twos and higher pre-empts, simple overcalls, and takeout doubles. They do not use artificial conventions. In the play they lead top of sequences and fourth-highest, draw trumps as declarer when they hold length, and play to win tricks cheaply. A hint button uses the same logic to suggest a call or a card. ## Controls - Bidding box: choose a level (1–7), then a denomination; Pass, X (double) and XX (redouble) are single buttons. - Card play: click a card. On touch screens the first tap lifts a card and the second tap plays it. - Keyboard: 1–7 then C, D, H, S, or N to bid; P to pass; X to double or redouble; left and right arrows to move across cards and Enter or Space to play; H for a hint; N for a new deal; M to mute. - The Play control in the site header scrolls to the table and starts a deal. ## Progress and privacy Deals played, deals won, total score, best single-deal score, contracts made as declarer, slams, current win streak, and longest streak are stored in the browser's local storage under a versioned key. The sound preference is stored there too. Nothing is uploaded. Aggregated usage analytics use Google Analytics; see https://bridgeonline.app/privacy. ## Accessibility Bidding and card play work by keyboard; every control has an accessible name and a visible focus ring; the current instruction is announced through a polite live region; colours meet WCAG AA contrast; the layout fits phone screens without horizontal scrolling. ## Pages - https://bridgeonline.app/ — play the game - https://bridgeonline.app/how-to-play — rules, bidding guide, scoring, controls - https://bridgeonline.app/tips — strategy - https://bridgeonline.app/faq — frequently asked questions - https://bridgeonline.app/about — history and design notes - https://bridgeonline.app/privacy and /terms — legal