In bridge, the Deschapelles coup is the lead of an unsupported honor to create an entry in partner's hand; often confused with the Merrimac coup, the lead of an unsupported honor to kill an entry in an opponent's hand.
This sacrificial play was invented by Alexandre Deschapelles, a 19th-century French chess and whist player , [1] [2]
Geir Helgemo executed this Deschapelles Coup in a 1998 tournament. [3]
| South in 4♦ | ♠ | J 6 | |||
| ♥ | A J 10 8 3 | ||||
| ♦ | Q 6 2 | ||||
| ♣ | K J 8 | ||||
| ♠ | 5 4 3 2 | N | ♠ | K Q 10 8 7 | |
| ♥ | Q 5 | ♥ | K 9 6 2 | ||
| ♦ | J | ♦ | K 9 7 | ||
| ♣ | 10 9 7 5 3 2 | ♣ | A | ||
| Lead: ♠2 | ♠ | A 9 | |||
| ♥ | 7 4 | ||||
| ♦ | A 10 8 5 4 3 | ||||
| ♣ | Q 6 4 | ||||
Helgemo was East against South's 4♦. West led a small spade, Helgemo put up the ♠Q and South won the ♠A. South then returned a spade to Helgamo's ♠K. Helgemo cashed the ♣A and switched to the ♥K (the coup). Dummy won the ♥A and played the ♦Q to the ♦K, ♦A and ♦J.
Now declarer tried to enter dummy with the ♣K, but Helgemo ruffed, put West in with the ♥Q, and ruffed the club return for down two.
It would not have helped South to duck the ♥K because Helgemo would simply have continued hearts, winding up with a trick in each suit.
And it would not have helped Helgemo to switch to a low heart at trick four. South wins West's ♥Q with the ♥A, leads the ♦Q, covered and won, and then leads another heart to endplay Helgemo.
This is a particularly unusual Deschapelles coup, because it is combined with a Merrimac coup. The same play of the ♥K both establishes an entry for West and takes out an entry to dummy.
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.
The simple squeeze is the most basic form of a squeeze in contract bridge. When declarer plays a winner in one suit, an opponent is forced to discard a stopper in one of declarer's two threat suits.
Safety play in contract bridge is a generic name for plays in which declarer maximizes the chances for fulfilling the contract by ignoring a chance for a higher score. Declarer uses safety plays to cope with potentially unfavorable layouts of the opponent's cards. In so doing, declarer attempts to ensure the contract even in worst-case scenarios, by giving up the possibility of overtricks.
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.
An entry, in trick-taking card games such as bridge, is a means of gaining the lead in a particular hand, i.e. winning the trick in that hand. Gaining the lead when some other player led to the previous trick is referred to as entering one's hand; a card that wins a trick to which another player made the lead is therefore known as an entry card.
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.
The stepping-stone squeeze is an advanced type of squeeze in contract bridge. It is used when the declarer has enough high cards to take all but one of the remaining tricks, but does not have enough communication between the hands to cash them. It was analyzed and named by Terence Reese in the book "The Expert Game", also titled "Master Play in Contract Bridge".
A strip squeeze is a declarer technique at contract bridge combining elements of squeeze and endplay.
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.
Morton's fork is a coup in contract bridge that forces an opponent to choose between
Smother play in contract bridge is a type of endplay where an opponent's apparent trump trick goes away.
The trump coup is a contract bridge coup used when the hand on lead 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. 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.
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:
The Merrimac coup is a contract bridge coup where a player sacrifices a high card in order to eliminate a vital entry from an opponent's hand. It was named after American steam ship Merrimac, which was sunk during the Spanish–American War in 1898 in Santiago de Cuba in an attempt to bottle up the Spanish fleet.
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.
Shooting is an approach in bridge to the bidding or play of a hand which aims for a favorable result by making a choice that is slightly against the odds. A player might decide to shoot toward the end of a pairs game, when he judges that he needs tops to win, not just average-plus results.