Note: As an editorial to the magazine The Bridge World, Mr. Manol Iliev of Sofia, Bulgaria, and who plays regularly at the Bridge Club Lime Blossom, authored the following and which he designated as the Bulgarian Squeeze. Source. The photograph is from the year 2009.

     

The Bulgarian Squeeze
A Sure-Trick Problem

by: Manol Iliev

North
K2
A10932
K5
A1093
South
A109
J54
A9432
K2

West leads the Queen of Diamonds against South's contract of three No Trump. How can declarer guarantee the contract against any distribution and defense?

Solution to the Puzzle

Win with the Diamond King and lead the Heart deuce to the Jack. No problem unless East plays low and West shows out; assume that. Continue with a Heart to the nine, taken by East. East cannot safely lead a Heart or a Club. If East returns a Diamond, win with the Ace. Unless East started with five Diamonds, work on Diamonds for a ninth trick. When East is five-five in the red suits, lead a Spade to dummy's king. If East follows, lead a Club to the King, establishing an extra trick in Clubs if East shows out, taking the black Aces to strip-squeeze East between the red suits otherwise. If East shows out of Spades (he is 0-5-5-3), lead a Spade to the Ace; if East keeps enough red-suit protection to stop an extra trick in those suits, he can hold at most two cCubs, after which Club Ace-King and a Diamond will endplay him. Assume that East returns a Spade at trick four.

Win with dummy's King, collecting a Spade honor in the process, and lead a Diamond. If East follows, win with the ace. If East started with five Diamonds, continue as in the previous paragraph; otherwise, lead another Diamond and continue working on that suit if West started with three or four Diamonds. If East started with four Diamonds, and leads a Spade (best), finesse the ten. At worst, West wins and leads a black suit, after which East is subject to a red-suit strip-squeeze. Assume that East shows out at trick five.

Duck the trick to West. His only safe leads are in the Minors. If he leads a high Diamond, discard the three of Clubs from dummy and duck. Now West's only safe lead is a Club. Win with the King, collecting a Club honor in the process. Cash the Diamond Ace, discarding a Spade from dummy. If East keeps only two Hearts, Ace and one Heart will set up a Heart in dummy and force the defender to lead a black suit, either making the Club ten a winner or allowing it to be discarded on the Ace of Spades. If East keeps three Hearts, cash the Ace of Spades, discarding a Heart from dummy. Then, if East has only two Hearts, playAace and another Heart; otherwise, finesse the ten of Clubs, either winning the trick of enabling dummy to win the rest. Assume that West leads a Club at trick six.

Win with the King, collecting a Club honor in the process (playing dummy's nine on a low lead). Cash the Diamond Ace, discarding a Spade from dummy. In the six-card ending, West has two Diamonds; East must keep three Hearts, else Ace and another Heart will establish a Heart and endplay him. That leaves East-West only seven black cards, so they have at most three cards in some black suit.

(1) If East-West have at most three Spades, cash the Spade Ace, discarding a Club from dummy.
    (a) If East shows out, play Ace and another Heart to endplay him.
    (b) If West shows out, finesse the ten of Clubs (either winning the trick or forcing East eventually to lead into a Heart tenace).
    (c) If both opponents follow low, finesse dummy's ten of Clubs. If this loses, East may cash a Spade but then must lead into a Heart tenace; if, instead, East wins and exits with a Club to dummy's Ace, a low Heart endplays him.
(2) If East-West have at most three Clubs, lead a Club
    (a) If West shows out and (a1) East has two Clubs, play Ace and another club; or (a2) East has three Clubs, play dummy's low Club to begin a double endplay against East.
    (b)

If East shows out, cash dummy's Aces and lead a Heart, eventually scoring the spade ace. (b2) If East wins and exits with a Club, cash dummy's Clubs; if East keeps three Hearts lead a low Heart, or if East keeps two hearts play Ace and another Heart.

If you wish to include this feature, or any other feature, of the game of bridge in your partnership agreement, then please make certain that the concept is understood by both partners. Be aware whether or not the feature is alertable or not and whether an announcement should or must be made. Check with the governing body and/or the bridge district and/or the bridge unit prior to the game to establish the guidelines applied. Please include the particular feature on your convention card in order that your opponents are also aware of this feature during the bidding process, since this information must be made known to them according to the Laws of Duplicate Contract Bridge. We do not always include the procedure regarding Alerts and/or Announcements, since these regulations are changed and revised during time by the governing body. It is our intention only to present the information as concisely and as accurately as possible.

 


     
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