日批在线视频_内射毛片内射国产夫妻_亚洲三级小视频_在线观看亚洲大片短视频_女性向h片资源在线观看_亚洲最大网

US EUROPE AFRICA ASIA 中文
China / Life

In a grand slam, find 13 winners

By Phillip Alder (China Daily) Updated: 2017-04-15 07:40

Rube Goldberg, who won a Pulitzer Prize in 1948, is best known for a series of cartoons depicting complicated gadgets that perform simple tasks in indirect, convoluted ways.

Some bridge players can get like that, thinking in convoluted ways instead of in straight lines. In today's deal, for example, how should South play in seven hearts after West leads the club king?

First, note South's four-heart jump advance of his partner's takeout double. Remember that a bid of three hearts would have promised nothing (although North would have assumed his partner had six or seven points). So, South's jump suggested 9-11 points, which is what he had! Now North, envisioning a slam, used two doses of Blackwood. He would have felt much more comfortable using Roman Key Card Blackwood, because he would have known about South's heart king-queen. (South would have replied five spades to four no-trump to show the trump queen and two key cards, an ace and the trump king, or two aces.) Still, North was confident that his partner would not have the club ace and king, so took a slight chance on the heart suit in jumping to the grand slam.

Declarer has 11 top tricks: two spades, five hearts, three diamonds and one club. He cannot establish an extra winner anywhere, so must ruff two clubs on the board to bring his trick total up to 13. South should win with his club ace, ruff a club high, cross back to hand with a trump, ruff another club high, draw trumps and claim.

 

Highlights
Hot Topics

...
主站蜘蛛池模板: av资源免费| 黄色美女毛片 | 蜜桃一二三区 | 免费亚洲视频 | 精品一区视频 | 精品久久网 | 国产日产欧美一区二区 | 国产视频一区二区三区在线观看 | 看特级毛片 | 国产精品福利一区二区 | 亚洲日本天堂 | 在线免费观看毛片 | 91精品推荐 | 久久草视频在线 | 欧美一区二区三区在线观看视频 | 成人午夜大片 | 国产精品久久久 | 国产污| 美女免费av| 91狠狠干 | 欧美激情视频一区二区三区 | 天堂一区二区三区 | 日本高清视频免费看 | 欧美亚洲二区 | 蜜桃av一区 | 日韩欧美自拍 | 综合中文字幕 | 国产精品久久久免费 | 在线观看日本黄色 | 欧美在线网站 | 国产区一区二区三区 | 男人午夜影院 | 亚洲美女久久 | 久久熟| 在线看成人 | 成人在线一区二区 | 青草一区二区 | 久久中文字幕在线观看 | 日本污视频在线观看 | 国产一道本 | 精品日本一区二区三区在线观看 |