How to Count the Hand as Declarer

Counting the hand as declarer means keeping track of how many cards in each suit—and how many High Card Points (HCP)—remain in the defenders' hands as tricks are played. You calculate missing cards in any suit by subtracting the cards in your hand and dummy from 13. Combine this suit count with inferences from the bidding to locate missing honour cards with certainty.

Why counting the hand works

Bridge is a game of complete information by the final tricks, but declarer must uncover that information step by step. Because every suit contains exactly 13 cards and every deck contains 40 High Card Points (A=4, K=3, Q=2, J=1), tracking what you can see reveals what you cannot see.

When you know that ten cards in a suit have been played or are visible in hand and dummy, only three cards remain with the defenders. Counting replaces wild guesses with mathematical certainty, ensuring you make critical finesses (playing a low card hoping an opponent's honour is favourably placed) into the correct opponent.

A worked example: Counting trumps and distributions

You are declaring a 4♠ contract. You and dummy hold 9 Spades combined, leaving the defenders with 4 Spades.

Dummy (North):
♠ A 10 4

Declarer (South):
♠ K Q 9 5 2

Play of the Trump Suit:

• Trick 1: You lead the ♠K from hand. West plays the ♠2, dummy plays the ♠4, East plays the ♠7. (Two missing trumps played; two remain).
• Trick 2: You lead the ♠5 from hand. West discards a Heart (showing out), dummy plays the ♠10, East plays the ♠8.

Because West showed out on Trick 2, your count tells you that West started with 1 Spade and East started with 3 Spades. East holds the remaining Spade (the ♠J). Instead of playing dummy's ♠A on Trick 3, you safely finesse East on the next round to win the trick.

Four common mistakes

• Trying to count all four suits simultaneously on Trick 1 rather than starting with the trump suit.
• Counting tricks won instead of keeping track of cards remaining in the key suits.
• Ignoring clues from the opponents' bidding, such as opening bids or overcalls that guarantee 12+ HCP.
• Giving up on counting halfway through the hand when a contract becomes tricky.

When the rule does not apply

On fast, high-level contracts where the defenders threaten to cash top winners the moment they gain the lead, you may not have time to fully count the hand. In these emergency situations, take your best percentage plays immediately before defenders can take their tricks.

Key takeaways

• Subtract your combined suit length from 13 to know how many cards the defenders hold.
• Start by counting the trump suit first, then move to your key side-suits.
• Use opening bids and overcalls to calculate missing honour card locations.
• Practice counting one suit on every hand until the habit becomes automatic.