The Double Dummy Solver

1. 1.Pick one of three ways to enter the deal: by hand, from a photo (Upload Image) or by voice (Speak Cards).
2. 2.To enter it by hand, click a seat in the compass, then click its cards suit by suit. The quick input also takes each suit as a string of ranks, such as AKQ2.
3. 3.Press Random Deal to fill any seat you leave empty. Once some cards are in, the same button reads Randomize Rest and keeps what you entered.
4. 4.To read a hand record, upload a screenshot or photo of the hand diagram (JPG or PNG). Keep all four hands in the picture and the diagram near the middle, then correct any card it misread.
5. 5.To speak the deal, use the microphone and call out each hand in normal bridge terms. The solver turns what you say into a complete deal.
6. 6.Run the analysis to see the grid, then play the deal out card by card.

Each row of the grid is a declarer and each column a strain. If South's figure under ♠ is 10, South makes ten tricks in spades against the best defense, so 4♠ makes and 5♠ goes one down. North and South often show the same figures, but they can differ, because the opening lead comes from a different hand.

Once the deal is in, you can play it out with the solver beside you. It shows which cards hold the double dummy result and which ones give a trick away, so replaying the hand the way it went at the table finds the card where a trick slipped.

• Manual entry is free and unlimited, with no account needed.
• A photo or screenshot of a hand diagram costs 2 credits.
• Voice input costs 2 credits.

Every new account gets 7 starter credits once, and they are not refilled each month. After that, credits come from a plan or from packs. Pro includes 20 credits a month for $7 a month or $60 a year, and Master includes 55 a month for $12 a month or $99 a year. Plan credits do not roll over. Credit packs never expire and come as 20 credits for 3.50, 55 for 8.50 and 120 for 17.50, in dollars or euros depending on where you are. The plans are compared on the pricing page.

• It gives double dummy results only. It does not work out the best play when declarer can see just dummy and the cards in hand.
• The photo reader works on hand diagrams. It does not read real playing cards laid out on a table.
• It analyzes a deal you already have. It does not bid, and there is no play against people or robots.
• It solves one fixed deal. How often a contract makes when the opponents' cards are unknown is a job for the contract success rate tool or the Bridge Lab simulator.