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In the card game bridge, CoCa or Comfy Canapé is a conventional defense against opposing 1NT openings. When playing CoCa, over a 1NT opening of the opponents, both a double as well as a 2 overcall are conventional and establish spades and hearts, respectively as anchor suits. Higher overcalls (2//) can be either natural (single suiters), or conventional (as explained below). The convention was published in ''Bridge'' Magazine IMP.〔Johannes Koelman, ''Bridge'' Magazine IMP, September 2006. (in Dutch)〕 ==CoCa overcalls== dbl = A) 4-card spades plus a longer suit, or B) 6-card spades 2 = A) 4-card hearts plus a longer suit, or B) 6-card hearts 2 = 4-4 majors 2 = 5-card plus minor suit 2 = 5-card plus minor suit The canapé structure of the dbl/2 CoCa bids (with a rebid in another suit denoting a longer suit) is what lends the convention its name. 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「Comfy Canapé」の詳細全文を読む スポンサード リンク
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