Example: Triple Squeeze With Potential Misdefense
Here is an example of a triple squeeze that should not become progressive:
♠ | A 5 2 | ||||
♥ | J 10 8 2 | ||||
♦ | 9 4 2 | ||||
♣ | A 6 4 | ||||
♠ | Q J 10 |
N |
♠ | 8 7 6 4 | |
♥ | 6 3 | ♥ | 7 | ||
♦ | A K Q J 10 | ♦ | 8 7 5 3 | ||
♣ | Q J 10 | ♣ | 8 7 3 2 | ||
♠ | K 9 3 | ||||
♥ | A K Q 9 5 4 | ||||
♦ | 6 | ||||
♣ | K 9 5 |
South, pushed to 5♥ by the nonvulnerable opponents, ruffs the second diamond lead and runs hearts to reach this position:
♠ | A 5 2 | ||||
♥ | — | ||||
♦ | 9 | ||||
♣ | A 6 4 | ||||
♠ | Q J 10 |
N |
♠ | 8 7 6 | |
♥ | — | ♥ | — | ||
♦ | Q | ♦ | — | ||
♣ | Q J 10 | ♣ | 8 7 3 2 | ||
♠ | K 9 3 | ||||
♥ | 9 | ||||
♦ | — | ||||
♣ | K 9 5 |
South cannot be prevented from winning six more tricks, and if West isn't careful South will win all seven. When South leads his last heart, West is triple-squeezed and must discard the ♦Q to stop the overtrick. Now South discards dummy's ♠2 and crosses to the ♠A. Dummy's ♦9 is cashed, South discards the ♣5, and West lets go the ♣10. South can now cash two clubs and a spade but must give up either a spade or a club at the end.
If West discarded from a black suit when South cashed the final heart, the position would progress to another squeeze, of the simple squeeze variety. The reason that this does not occur after the ♦Q is discarded on the ♥9 is that a squeezed position requires that at least one threat sit over the squeezed opponent. After West discards, say, the ♣10 on the ♥9, dummy discards a small club, keeping dummy's ♦9 as a threat sitting over West's ♦Q. Now South can cash the ♣A, the ♣K and the ♣9 to effect another squeeze, a simple two-suit squeeze in spades and diamonds, against West.
But if West discards the ♦Q on South's final heart, South cannot arrange for a threat to sit over West's black suit holdings, a progressive squeeze cannot mature, and South is held to the one additional trick he gets from the triple squeeze.
Read more about this topic: Triple Squeeze
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