问题描述：
英语翻译
overcalling can work out well,but its advocates often discount the deals on which their bid helps an opponent with his declarer play or defense.here is an example.
south gets into four spades,west having overcalling in hearts.after west leads the queen of his suit,how should declarer plan the play?
north's three hearts is called a cue-bid raise.it shows at least a game-invita-tional limit raise with three or more spades.(this permits north with a weaker hand and four-card spade support to jump per-emptively to three spades).
south could see only three possible losers:one spade,one heart and one diamond(the finesse was probably losing).but instead of plowing on without further thought,he paused to consider if there was any danger.well,was there?definitely!there were only 11 high-card points missing,which west probably had for his two-level bid.and if east had a singleton heart,he was threatening to get a heart ruff when west got in with the spade ace.however,that would not be a problem if east ruffed only low hearts,declarer's natural loser.so south called for dummy's heart ace and played a trump.
west won and gave his partner a heart ruff,but declarer won the diamond shift with his ace and drew the missing trump.he lost only one spade,that ruff and a diamond.
note,though,that if south had taken the first trick with his heart king,he would have gone down.at trick three,east would have ruffed dummy's heart ace,establishing a heart trick for west.
overcalling can work out well,but its advocates often discount the deals on which their bid helps an opponent with his declarer play or defense.here is an example.
south gets into four spades,west having overcalling in hearts.after west leads the queen of his suit,how should declarer plan the play?
north's three hearts is called a cue-bid raise.it shows at least a game-invita-tional limit raise with three or more spades.(this permits north with a weaker hand and four-card spade support to jump per-emptively to three spades).
south could see only three possible losers:one spade,one heart and one diamond(the finesse was probably losing).but instead of plowing on without further thought,he paused to consider if there was any danger.well,was there?definitely!there were only 11 high-card points missing,which west probably had for his two-level bid.and if east had a singleton heart,he was threatening to get a heart ruff when west got in with the spade ace.however,that would not be a problem if east ruffed only low hearts,declarer's natural loser.so south called for dummy's heart ace and played a trump.
west won and gave his partner a heart ruff,but declarer won the diamond shift with his ace and drew the missing trump.he lost only one spade,that ruff and a diamond.
note,though,that if south had taken the first trick with his heart king,he would have gone down.at trick three,east would have ruffed dummy's heart ace,establishing a heart trick for west.
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