“Vienna coup”的意思、由来-开放百科全书

词条

Vienna coup

释义

Examples
References

The Vienna coup is an unblocking technique in contract bridge made in preparation for a squeeze play.^[1] It is so named because it was originally published by James Clay (1804-1873) after observing it being executed in the days of whist by "the greatest player in Vienna" — identity unknown.^[2]

Examples

{{BridgeHandNES
|Label = Example 1
|Lead = South to lead
|A J|A|—|2
|K Q|K 4|—|—
|4|Q 2|—|A}} On the play of the {{Clubs}}A by South, East is squeezed but can escape by throwing a small heart. Although the {{Hearts}}Q is now set up, South must next play either the {{hearts}}Q, {{hearts}}2 or {{spades}}4 to be won in dummy and has no entry back to cash it; he must now lose a spade to East.{{Clear}}{{BridgeHandNES
|Label = Example 2
|Lead = North to lead
|A J|—|—|2
|K Q|K|—|—
|4|Q|—|A}} However, if instead, South plays the {{Hearts}}2 to the {{Hearts}}A, East is squeezed when declarer next leads the {{clubs}}2 to the ace.

If East discards the {{hearts}}K, declarer cashes the {{hearts}}Q discarding the {{spades}}J and leads to the {{spades}}A.
If East discards the {{spades}}K or {{spades}}Q, declarer cashes the {{spades}}A and {{spades}}J.

{{Clear}}{{BridgeHandNES
|Label = Example 3
|Lead = South to lead
|A J|—|2|—
|K Q|K|—|—
|4|Q|—|A}} In this layout there is no way to get back to the hand by playing the {{clubs}}2 to the ace. In this case, the {{Hearts}}A must have been cashed already at an earlier stage to squeeze East when declarer leads the {{clubs}}A and discards the {{diamonds}}2 from the table.{{Clear}}

References

1. ^{{OEB|7|470}}
2. ^{{cite book |last1 = Culbertson |first1 = Ely, Editor |authorlink1 = Ely Culbertson |title = The Encyclopedia of Bridge |edition = |publisher = The Bridge World, Inc |location = New York |page = 453 |series = |year = 1935 |doi = |isbn = }}

1 : Contract bridge coups

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