One hand from deal to score
The auction ends in 4♠ doubled. The declaring side must take ten tricks; the opening lead comes from the player to declarer’s left. After that lead, dummy is shown and declarer chooses cards from both hands.
A beginner practice version
This is a single-table duplicate-bridge practice hand. It applies legal bid order, pass, double, redouble, follow-suit play, trump comparison, dummy control by declarer and a duplicate-style score for the hand. The built-in computer players use a small natural starter agreement: 1NT shows a balanced 15–17 high-card points; suit openings start at 12 points; responses and overcalls are deliberately basic. These opponents are practice bots, not expert bridge software. Tournament rulings, alerts, partnership conventions and matchpoint comparisons are outside this version.
Questions
Is this rubber bridge or duplicate bridge?
It scores each hand separately using duplicate-style contract scoring. It does not carry part-scores forward as rubber bridge does, and it does not compare your result with other tables.
What bidding system do the computer players use?
A beginner natural starter agreement is shown on the page. It is the same whichever interface language you choose; it is not a national bridge system or a complete tournament convention card.
Can I play online with other people?
No. One person plays South against three local computer players. There is no matchmaking, account or server game.
How does the game score a hand?
It shows the contract, vulnerability, tricks required and a duplicate-style score based on contract level, strain, double/redouble, overtricks or undertricks, and game or slam bonuses.
Does the computer play like a strong bridge partner?
No. The bots follow legal calls and plays but use simple beginner heuristics. Their decisions are not a model of expert bidding or card play.
Scope and limitations
This is a practice table, not an online bridge service, tournament director or expert solver. The starter bidding agreement is intentionally small and documented. Duplicate-style hand score is shown; matchpoints, IMPs, rubber scoring, alerts, claims, revoke rectifications and director rulings are not implemented.