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Author Topic: Double dummy play problem.  (Read 4735 times)

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Offline brian_m

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Double dummy play problem.
« on: June 28, 2020, 08:40:39 PM »
https://www.bridgebase.com/tools/handviewer.html?bbo=y&lin=pn|brian_m,kasey,IBracem,brucek|st||md|3S24QAH36AD5C689JK%2CS356H4789JDJC457T%2CS89JHTD36TQKAC3QA%2C|rh||ah|Board 25|sv|e|mb|1C|mb|p|mb|2C!|an|!c positive%2C GF|mb|p|mb|2D|mb|p|mb|3C!|an|5 controls|mb|p|mb|6C|mb|p|mb|p|mb|p|pc|HK|pc|HA|pc|H4|pc|HT|pc|CK|pc|C4|pc|C3|pc|C2|pc|C6|pc|C5|pc|CQ|pc|H2|pc|CA|pc|H5|pc|C8|pc|C7|pc|DA|pc|D2|pc|D5|pc|DJ|pc|DK|pc|D4|pc|H3|pc|CT|pc|H7|pc|S8|pc|HQ|pc|H6|pc|S7|pc|SQ|pc|S3|pc|S9|pc|SA|pc|S5|pc|SJ|pc|ST|pc|CJ|pc|H8|pc|D3|pc|D7|pc|S4|pc|S6|pc|D6|pc|SK|pc|D9|pc|C9|pc|H9|pc|DT|pc|S2|pc|HJ|pc|DQ|pc|D8|

I'm not really endorsing Mark's precipitous jump to 6 !C, in fact I thought we might have missed 7 !C when I saw the two hands, but once I saw all four hands I'm having great difficulty in finding a line which makes 12 tricks on the K !H lead. If East did not have the 10 !S then I could possibly do it by leading away from AQ !S and getting another entry to dummy by finessing  !S 9, but unfortunately East's  !S are K10x not Kxx, which puts paid to that idea.

If you let West ruff a  !D then she will continue  !H.

Can anybody see a line which makes the slam?

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Please note that the responses I give are based on my current understanding of the system, and I've checked the website if in any doubt. I didn't attend Oliver's classes until 2021-22, so if Oliver has said anything different in his lessons in earlier years, I don't know about it!

Offline IBracem

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Re: Double dummy play problem.
« Reply #1 on: October 12, 2021, 06:13:21 PM »
ace h
rough h  with the 3 c
play two rounds of clubs ace and qc

hook the ks. 

now squeeze east in d and s

clear trumps now after s finesse.

go to daimonds on board throw last h
 
s can hook   or diamond is good six on board if east has been pitching them.   if they have thrown s then is easier.   

makes 7 I think
Mark





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Offline brian_m

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Re: Double dummy play problem.
« Reply #2 on: October 12, 2021, 06:44:04 PM »
You're right, six is easy. It was the need to immediately ruff a heart that I missed.
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Please note that the responses I give are based on my current understanding of the system, and I've checked the website if in any doubt. I didn't attend Oliver's classes until 2021-22, so if Oliver has said anything different in his lessons in earlier years, I don't know about it!

Offline iamadeus

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Re: Double dummy play problem.
« Reply #3 on: October 13, 2021, 03:51:47 PM »
The problem becomes more interesting after a diamond lead, which cuts off communication to the diamonds if we try to draw trumps. We need to play a high diamond, letting West ruff, then plan to ruff a diamond high to set up the suit. The timing is definitely off, so grand slam doesn’t make on this lead.

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