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

USEUROPEAFRICAASIA 中文雙語Fran?ais
China
Home / 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.

 

Editor's picks
Copyright 1995 - . All rights reserved. The content (including but not limited to text, photo, multimedia information, etc) published in this site belongs to China Daily Information Co (CDIC). Without written authorization from CDIC, such content shall not be republished or used in any form. Note: Browsers with 1024*768 or higher resolution are suggested for this site.
License for publishing multimedia online 0108263

Registration Number: 130349
FOLLOW US
主站蜘蛛池模板: 美女激情av| 97久久久| 欧美一级艳片视频免费观看 | 国产一区在线观看免费 | 一区二区三区日韩在线 | 91视频麻豆 | av黄色在线 | 国产视频第二页 | 久久久精品免费观看 | 国产麻豆精品一区二区 | 在线观看毛片视频 | 中文字幕手机在线观看 | 天堂综合网久久 | 国产毛片高清 | 成年免费视频黄网站在线观看 | 青青操视频在线播放 | 99这里有精品 | 亚洲色图 校园春色 | 亚洲男人天堂2019 | 黑人巨大精品欧美一区二区免费 | 中文字幕av观看 | 亚洲一卡二卡在线 | 黄色a级片 | 日韩在线观看视频一区二区 | 国产第一页在线观看 | 黄色影视大全 | 久久久久99精品国产片 | 天堂综合 | 蜜桃av一区 | 激情黄页 | 日本在线观看中文字幕 | 久久久免费观看 | 久久国产一区二区 | 日韩欧美不卡 | 国精品人伦一区二区三区蜜桃 | 人人爽人人爽人人 | 五月激情天 | 自拍偷拍亚洲视频 | аⅴ资源新版在线天堂 | 成人亚洲网 | 久久久美女|