Trump squeeze

Last updated

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.

AHearts trump
North on lead
A
K107

N

                 E

S

Q9
J98
1083
2
3

This end position illustrates a trump squeeze play. Hearts are trumps, and the lead is in the North hand. Declarer plays the A (the squeeze card), discarding the 3 from hand, and East has no good discard. If East plays a spade, declarer cashes the A to set up the spade suit, which he can reach with a club ruff after cashing North's K. If East plays a club, declarer cashes the K, ruffs a club, and has the Ace of spades as an entry to dummy.

AHearts trump
North on lead
J10
A

N

                 E

S

KQ
KQ
10
2
J10

Here is perhaps the simplest possible example. Assume hearts are trump and both red suit Aces have been played. When declarer leads the A from North, East must drop his guard in one of the minor suits. If he discards a diamond, then declarer ruffs a diamond, setting up the suit and takes the last two tricks with the A and the J.

If East instead discards a club, South cashes the A, ruffs a diamond and enjoys the J for the final trick.

This shows all the elements clearly:

  • A blocked threat in Suit A (the two clubs in the South hand) that is accompanied by a trump, which will provide the means of reaching the blocked threat if it becomes good because the defender drops his Suit A guard;
  • a second threat in Suit B in the other hand that can be established by ruffing if the defender drops his guard in Suit B (the two diamonds in the North hand); and
  • a single defender guarding both threats.

The North card that blocks the Suit A threat (A) provides the means of reaching the Suit B threat if it becomes good via ruffing.

The key elements are:

  • A suit that declarer can ruff to set up extra tricks
  • An entry to another suit which can also yield extra tricks
  • One defender who guards both suits

Another example illustrates the squeeze card (a trump) being led from South (declarer) and East being squeezed.

Spades trump
South on lead
A2
AK54

N

                 E

S

K9
J1098
83
Q6
32

Spades are trump and the lead of the 8 squeezes East after South discards a small diamond from dummy. The Q is the blocked threat and clubs can be established by ruffing if the squeezee discards a club.

If East discards a club, South will play the Ace and King of clubs, ruff the third round of that suit and then return to dummy with the A to cash the established club. If East instead elects to bare his K, South will play the two top clubs and the A, dropping the K and then ruffing a club back to hand to win his Q.

If West guards both minor suits, the trump squeeze is not necessary (although it will still work). South can simply play the two top clubs, ruff a club back to hand and then lead the final trump as the squeeze card, catching West in a simple positional squeeze.

A very rare example is the double trump squeeze, where both opponents suffer the same fate. Here is an example from the quarterfinals of the 2004 Olympiad, in the match between Italy and the USA. Declarer, Norberto Bocchi of Italy, declared 4 and achieved the following end position with the lead in dummy:

South in 41073
A10
Q42

N

W               E

S

J96
K7J9
North on leadAK8
Q10

Declarer led the Ace of hearts from dummy, discarding the 8, and the defence had no answer. If both pitched spades, declarer could play the Ace and King of spades, establishing the ten. If both pitched diamonds, a spade to the Ace and a diamond ruff would establish the Queen.

If one pitched a spade and the other a diamond, then declarer's play depended on who released the diamond guard. If it were West, a spade to the Ace and a ruff of the Ten of diamonds would set up the Queen. If it were East, a spade to the Ace and a lead of the Queen of diamonds would smother the Jack and create a ruffing finesse position, since declarer has the Ten (if West covers, declarer will ruff; if West ducks the Queen, declarer will discard from dummy and then ruff the Ten).

At the table, East (Michael Rosenberg) discarded a spade and West (Zia Mahmood) had to release his low diamond. Bocchi played a spade to reach his hand, then ruffed his low diamond, dropping the King from Zia and then made his Queen when he returned to hand with a high spade. [1]

Note that the squeeze was not automatic; if the East-West diamond holdings are reversed, the squeeze will fail, as it will if West holds King-Jack doubleton. Bocchi understood that his only chance was to find West (Zia) with the King-doubleton and East (Rosenberg) with the Jack-doubleton. He read the situation accurately when West discarded the seven of diamonds and made the only play that gave him a chance.

Notes

  1. See BIL Xmas Tournament writeup, at http://www.todheugh.plus.com/paul/bbo/xmas04.pdf

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.

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.

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.

A (bridge) signal is a move in the card game of contract bridge in which partners defending against a contract play particular cards in a manner which gives a coded meaning or signal to guide their subsequent card play. This may also be referred to as carding. Signals are usually given with the cards from the two-spot to the nine-spot. There are three types of signals:

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. This is not always a bad thing—see uppercut below.

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.

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.

A strip squeeze is a declarer technique at contract bridge combining elements of squeeze and endplay.

Pseudo-squeeze is a type of deceptive play in contract bridge. The declarer goes through the motions of executing a genuine squeeze where none exists, in the hope that a defender misreads the actual position and misdefends. The pseudo-squeeze simply gives the defender able to recognize the possibility of a squeezed position a chance to go wrong.

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.

A compound squeeze is a type of play in the game of contract bridge. In this squeeze one opponent is squeezed such that some form of other squeeze emerges involving either or both players. Usually this term is used to reference a pentagonal squeeze. In this form of squeeze both players guard two suits, and one player guards a third suit. On the play of a card the player guarding three suits must give up one of the shared guards . Now each opponent singly guards one suit, and there is a third suit that is jointly guarded. This means that a double squeeze matrix exists. Note that there are pseudo compound squeezes, where the triply squeezed opponent can select the 'correct' shared suit, such that the entry situation precludes the proper functioning of the double squeeze.

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.

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).

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:

A triple squeeze is a squeeze against one player, in three suits; a more explicit definition is "three simple squeezes against the same player."

Beer 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.

An entry squeeze is a move inn contract 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.