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The simple squeeze is the most basic form of a squeeze in contract bridge. When declarer plays a winner in one suit (the ''squeeze card''), an opponent is forced to discard a stopper in one of declarer's two threat suits. The simple squeeze takes place against one opponent only and gains one trick only. That opponent must hold the defense's only stoppers in declarer's two threat suits. The simple squeeze requires that declarer has rectified the count: declarer must have already lost as many tricks as he can afford, and can win all but one of the remaining tricks with top cards. Positional squeezes, described next, also require that the defense's stoppers be located favorably for declarer. Other requirements are also discussed in this article. ==Positional squeezes== Example 1 shows the basic layout: When the A is cashed, West is squeezed in the major suits. West must discard before North plays. If West discards a spade, dummy discards the K and declarer then wins the AJ. If West discards the A, dummy discards the J and declarer then wins the A and the K. This squeeze will not work if East's and West's cards are swapped. It is a ''positional squeeze'', so called because its success depends on the position of the threats K and J relative to the defense's stoppers, the KQ and the A. Either the K or J, or both, must be in the upper hand: the hand that plays after the squeezed defender. Therefore, if East holds the guards KQ and the A, the squeeze will fail as in the following position: East can wait to see which threat card is played on the A and discard accordingly: if declarer throws the J, East discards a spade, and if declarer throws the K, East discards the A. (This example assumes that West holds at least one heart after following to the A; else, South's 2 becomes a legitimate threat and the squeeze is automatic -- see the next examples.) 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Simple squeeze」の詳細全文を読む スポンサード リンク
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