Trump coup

Last updated

The trump coup is a contract bridge coup used when the hand on lead (typically the dummy) has no trumps remaining, while the next hand in rotation has only trumps, including a high one that would have been onside for a direct finesse if a trump could have been led. [1] The play involves forcing that hand to ruff, only to be overruffed. A similar motive is met in coup en passant, where indirect finesse is used instead of direct.

Contents

In an earlier text by George S. Coffin, [2] he names the trump coup as an "Overruff Finesse Endplay".

Example

In the end position below, spades are trump and the lead is in dummy (North). The king of spades is onside, but declarer (South) cannot finesse against it because dummy has no trumps remaining.

A
32

N

W               E

S

K2
67
AK
AQ
2

In preparation for the trump coup, declarer must ensure that his right hand opponent has only trump cards and plays the A first. Next, when a club is led from dummy, East must ruff, and South can overruff with the ace or queen according to which spade East plays.

A trump coup is not possible in a double-finesse position, since declarer with a holding like A-Q-10 over defender's K-J-x would take the first trump trick and then would have to give the defender a free finesse. In effect, a trump coup against a king (or rather, the second-highest remaining trump) must find it guarded by exactly one other trump. (If East held another card instead of the small trump, say a diamond, North-South could still play the hand as just described, but the trump coup would be unnecessary as South could just drop the king of spades instead.)

Similarly, with A-K-J of trumps in hand, a trump coup against Q-x-x on the right is possible, and so on.

To execute a trump coup, declarer must have exactly the same number of trumps as the defender. If declarer had more trumps, entry could not be given to dummy at the critical point when the defender will have only trumps remaining. Sometimes a declarer with too many trumps, but needing to do a trump coup, can set up the desired position by entering dummy and leading a suit he can ruff, to shorten his own trumps.

Grand coup

If the card which is ruffed in order to shorten the trumps would have been a winner, the play is called a grand coup:

South in 68
652
K32
KQ10853
1073

N

W               E

S

9642
J83Q104
J109A8654
J9746
Lead:JAKQJ5
AK74
Q7
A2

South, having opened strong 2, plays in 6. West leads a diamond to East's ace, who returns a heart to South's ace. South plays A-K of trumps and discovers the bad break.

Now, South has to ruff his high spades in dummy twice to shorten its trumps to the same length as West; he cashes two high spades, discarding a heart from dummy, and ruffs the spade queen. Next, he enters his hand with the Q and ruffs another spade. He cashes the K, and reenters his hand with the K. At that point, North and West have only two trumps eachK10 and J9 respectively. Either a heart or a spade from South's hand completes the coup.

Endplay variation

A similar tactic can also be used to create an endplay situation, with similar results to the more ordinary trump coup:

Cavendish (1876)95432
10
J1087

N

W               E

S

Q6
9
J8
983
AK
J765

In this six-card ending, originally given as a whist hand, clubs are trumps and the lead is in the North hand.

To win five of the six remaining tricks (one trick must be lost in any event, as the 98 form a sure winner in the East hand), the 10 must be led from dummy and South must ruff with a low club (executing the grand coup in doing so). After this the AK must be cashed, and finally a low club led from hand. East can now win only one trump trickif he takes this trick he will be endplayed into leading into South's remaining trump tenace and lose the last two tricks, while if he ducks, he will of course prosaically lose his 9 or 8 to South's J and win only trick 13.

South wins a trick less if he plays otherwise, as the tempo of the situation is altered and it will be South who becomes endplayed at trick 12 to give up a second trump winner to Eastif he does not ruff dummy's heart winner, after giving up the first trump trick to East, the latter will still have a major suit card at trick 11 in addition to his two trumps, which he will lead to compel South to ruff and again lead trumps up to East. If he executes the coup but then fails to cash both spades before touching trumps, East will lead his remaining spade to force South back on lead to give up a second trump trick.

Often, for a trump coup to work, the key defender must have a suitable distribution in other suits, so that he cannot ruff a declarer's winner prematurely.

See also

Related Research Articles

In contract bridge and similar games, a finesse is a type of card play technique which will enable a player to win an additional trick or tricks should there be a favorable position of one or more cards in the hands of the opponents.

In the card game of contract bridge, to hold up means to play low to a trick led by the opponents, losing it intentionally in order to sever their communication. The primary purpose is to give as many tricks to opponents as needed to exhaust all the cards in the suit from one of their hands. If that hand regains the lead, it will not be able to put the partner on lead to cash its tricks. Hold up is one of basic techniques in play.

In trick-taking games, to ruff means to play a trump card to a trick. According to the rules of most games, a player must have no cards left in the suit led in order to ruff. Since the other players are constrained to follow suit if they can, even a low trump can win a trick. In some games, like Pinochle and Preferans, the player who cannot follow suit is required to ruff. In others, like Bridge and Whist, he may instead discard. Normally, ruffing will win a trick. But it is also possible that a subsequent player will overruff. Historically, ruff meant to "rob" i.e. exchange a card with the stock.

In contract bridge, coup is a generic name for various techniques in play, denoting a specific pattern in the lie and the play of cards; it is a special play maneuver by declarer.

An endplay, in bridge and similar games, is a tactical play where a defender is put on lead at a strategic moment, and then has to make a play that loses one or more tricks. Most commonly the losing play either constitutes a free finesse, or else it gives declarer a ruff and discard. In a case where declarer has no entries to dummy, the defender may also be endplayed into leading a suit which can be won in that hand.

In contract bridge, the trump squeeze is a variant of the simple squeeze in which one threat is a suit that if unguarded can be established by ruffing.

In contract bridge, an uppercut is a defensive play that involves one of the defenders ruffing high in the knowledge that an overruff by the declarer will result in the promotion of a trump card in their partner's hand into a winner. Thus, the technique presents a type of trump promotion.

The Devil's Coup is a declarer play in contract bridge that prevents the defense from taking an apparently natural trump trick – often called "the disappearing trump trick".

Morton's fork is a coup in contract bridge that forces an opponent to choose between

  1. letting declarer establish extra tricks in the suit led; or
  2. losing the opportunity to win any trick in the suit led.

Smother play in contract bridge is a type of endplay where an opponent's apparent trump trick goes away.

Coup en passant is a type of coup in contract bridge where trump trick(s) are "stolen" by trying to ruff a card after the player who has the master trump(s).

These terms are used in contract bridge, using duplicate or rubber scoring. Some of them are also used in whist, bid whist, the obsolete game auction bridge, and other trick-taking games. This glossary supplements the Glossary of card game terms.

Trump promotion is a technique in contract bridge where the defenders create an otherwise non-existing trump trick for themselves. The most common type of trump promotion occurs when one defender plays a side suit through, in which both the declarer's hand and the other defender are void:

Loser on loser play is a type of declarer's play in contract bridge, usually in trump contracts, where the declarer discards a loser card on an opponent's winner, instead of ruffing.

<span class="mw-page-title-main">Beer card</span> Playing card

In trick-taking card games such as bridge, the beer card is a name informally given to the seven of diamonds. Players may agree that if a player wins the last trick of a hand with the 7♦, their partner must buy them a beer. This is not considered as part of the rules of these games, but is an optional and informal side-bet between players. This practice likely originates from Danish Tarok or Skat in the middle of the 20th century.

Backwash squeeze is a rare squeeze which involves squeezing an opponent which lies behind declarer's menace. A variation of this, known as the "Sydney Squeeze" or "Seres Squeeze", was discovered in play at a rubber bridge game in Sydney, Australia in 1965, by the Australian great Tim Seres; it was later attested by famous bridge theorist Géza Ottlik in an article in The Bridge World in 1974, as well as in his famous book Adventures in Card Play, co-authored with Hugh Kelsey.

In the card game of bridge, tempo is the timing advantage of being on lead, thus being first to initiate one's play strategy to develop tricks for one's side. Tempo also refers to the speed of play and more generally the rhythm of play over several tricks.

A forcing defense in contract bridge aims to force declarer to repeatedly ruff the defenders' leads. If this can be done often enough, declarer eventually runs out of trumps and may lose control of the hand. A forcing defense is therefore applicable only to contracts played in a trump suit.

An entry squeeze is a move in contract bridge

In bridge, a knockout squeeze is a squeeze in three suits, one of which is the trump suit. The defender's trump holding is needed to prevent declarer from making a successful play involving trumps, including one as prosaic as ruffing a loser. Because the knockout squeeze does not threaten to promote declarer's trumps to winners it is termed a non-material squeeze. Other non-material squeezes include entry squeezes, single-suit squeezes and winkles.

References

  1. Levé, Guy (2007). The Encyclopedia of Card Play Techniques at Bridge. Toronto: Master Point Press. p. 217. ISBN   978-1-897106-25-9.
  2. Coffin, George S. (1975). Endplays: Eliminations - Squeezes - Coups. Book 4 of Bridge Play Four Classics (6th ed.). Duckworth and Company. p. 156. The first edition of Endplays was published in 1932.