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In contract bridge, an overcall is a bid made after an opening bid has been made by an opponent; the term refers only to the first such bid. A ''direct'' overcall is such a bid made by the player seated immediately to the left of the opener, i.e. next in the bidding rotation; an overcall in the 'last seat', i.e. by the player to the right of opener, which is made after two intervening passes, is referred to as a ''balancing'' overcall. ==Objectives== The overcaller has one or more of the following objectives: *To secure the contract *To suggest a good lead from partner *To induce the opponents to a higher-level contract *To find an effective sacrifice *To hinder the opponents in their bidding 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「overcall」の詳細全文を読む スポンサード リンク
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