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jybridge 2011-11-18 03:07 AM

Double Dummy Problem

Just see this interesting problem in other forum, and share it for all of you:

Contract 6C by S, lead S2

                          S: KQJ
                          H: AK2
                          D: Q432
                          C: 543

      S: 5432                               S: T98     
      H: Q654                              H: T98
      D: K                                    D: AT98765
      C: T872                              C: -


                         S: A76
                         H: J73
                         D: J
                         C: AKQJ96

(Of course the only defence to down it is lead DK, overtake by DA and return D at trick 2 to promote W trump; otherwise declarer can make)

wanmartin 2011-11-18 02:49 PM

There is a clear losing trick for diamond, so we need to avoid a heart losing trick??
But without HT it seems not possible to fin the HQ???

[[i] 本帖最後由 wanmartin 於 2011-11-18 02:53 PM 編輯 [/i]]

jybridge 2011-11-18 03:51 PM

You have 11 tricks on top, and the 12th trick has to come with some sort of squeeze;

Let you try first before posting the answer ^^

taiwai 2011-11-20 05:36 PM

這條雙夢家謎在隔離 forum 都有三、四年歷史了。

AmemEvol 2011-11-22 02:17 AM

諗應該係抽乾王牌
以北的鑽Q棄掉南的紅心

jybridge 2011-11-22 04:59 AM

Yes DQ is obviously one of the threat to the defenders. But you need to combine with other threats and a precise order of play to perform the squeeze :)
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