The Finesse: A Beginner's Guide to Winning Tricks

You are declarer in 3NT. You count your tricks, find eight, and spot the ninth hiding in a suit where dummy holds the ace and queen and you hold two small cards. There is no long suit to establish and no ruff available. The extra trick has to come from a finesse — or not at all.

Most players meet the finesse early, usually after losing a trick they assumed was safe. The idea behind it is straightforward, and once you have played a few you will start seeing the chance in almost every deal.

What a Finesse Actually Does

A finesse is an attempt to win a trick with a card that is not the highest one left in the suit. You are not beating the opponents' honour with a bigger card of your own. Instead, you arrange matters so the opponent who can beat you has to play first, before you commit.

This is why direction matters so much. You lead towards your honours, never away from them. Lead a low card from the hand opposite your ace-queen, and the player who must play before your queen has to guess in the dark. If the card you fear is in their hand, they can take your queen with it — but then your ace captures it and the suit belongs to you. If they duck, your queen wins the trick outright. Both outcomes work in your favour.

The classic shape is called a tenace: two honours with a gap between them. A Q, K J, A J, A Q 10. Spot a tenace in the combined hands and you have the raw material for a finesse. What you need next is a way to lead towards it.

The Classic Example: Ace and Queen

Dummy holds ♠ A Q 5. Your hand holds ♠ 7 4.

You lead the 4 from hand, playing towards dummy. If the opponent on your left follows with a low card, you call for the queen. One of two things now happens. The player holding the king must either cover your queen with it — in which case you simply win with the ace instead, leaving the queen as the highest card left in the suit — or duck, in which case the queen takes the trick.

If the king sits with the opponent on your right, the same play loses. They take the queen with the king, and your ace wins a trick later. So the finesse produces two tricks in the suit when the king is with the player who plays before your queen, and one trick when it is not. We call the first case onside and the second offside.

There is no secret to guessing. Until the bidding tells you otherwise, the missing honour is roughly as likely to sit with one opponent as the other.

When to Finesse — and When to Look Elsewhere

Not every tenace deserves a finesse. Before you commit, ask three questions:

• Do I need this finesse, or is there a safer source of tricks elsewhere?
• Can I afford to lose the trick if it fails?
• What do the bidding and the opening lead suggest about where the missing honour sits?

If you can establish a long suit instead, or ruff a loser in the short hand, do that first. A finesse is a coin toss; a sure thing beats a coin toss every time. Finesses are what you fall back on when the sure things have run out.

One useful rule of thumb concerns the trump queen. With eight trumps between the two hands, finessing for her is usually right. With nine, playing for the drop — cashing the ace and king first — usually works out better. Treat it as a guide rather than a law, because counting the opponents' shape can overturn it.

How to Play a Simple Finesse: Step by Step

1. Count your tricks before you play to trick one. Work out how many more you need and which suit must provide them.
2. Find the tenace — two honours with a gap, in the same suit.
3. Check that the lead can come from the hand opposite the tenace. If your entries are all on the wrong side, plan how to reach the right hand first.
4. Lead a low card towards the tenace. Low, not an honour.
5. Watch the opponent's card. If they play low, call for your honour — the queen under the ace-queen.
6. If they play an honour that would beat your card, don't play your honour on top of it. Win with the ace instead and your queen becomes the highest card remaining in the suit.
7. Repeat if the suit is long enough and you still have entries and low cards to lead.

Entries: The Bit Everyone Forgets

A finesse only works from the correct side of the table. If the tenace is in dummy, the lead must come from your hand — which means you need a card in that suit and a way back to your own hand afterwards.

The most expensive beginner's error is cashing the ace on the first round and only then looking for a finesse. The ace is often an entry as well as a winner, and once it has gone you may never reach the tenace again. Hold on to it. With ♠ A Q 5 in dummy and small cards in hand, keep the ace in dummy until the finesse has been taken. When the first finesse succeeds, cross back in another suit and take a second one in the same suit.

Four Mistakes Beginners Make

• Cashing the ace before finessing. You have thrown away the advantage before you used it.
• Finessing when the count rules it out. If you have counted the hand and know the missing honour is badly placed, stop and look for another route — a long suit, a discard, a loser you can throw on a winner.
• Finessing with no way back. Calling for the queen may win the trick and leave you stranded in the wrong hand. Sort out your entries before you play a card.
• Ignoring the bidding. If an opponent made a strong overcall, or opened the bidding, the missing honour is more likely to be with them. That is inference, not counting, but it is useful inference.

Make the Finesse a Habit

Before you play to trick one, give yourself ten seconds. Count your tricks. Ask which suit can produce the one you still need. Look for a tenace and check whether the lead can come from the right side. Then decide whether the finesse really is your best chance, or whether the deal offers something more reliable.

Do that on every hand for a few weeks and it becomes automatic. Finesses stop being a gamble you take and become a tool you choose.

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