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Change in non-vulnerable penalties--- history?

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Change in non-vulnerable penalties--- history? - 2006/10/31 16:23 Could somebody supply a reference for the history leading up to the change from (100,300,500,700,900) to (100,300,500,800,1100)? I have heard this referred to as "the Marty Bergen rule", suggesting it was made largely in response to aggressive pre-emptive tactics he advocated at favorable vulnerability. It seems unlikely that a single player could have brought about such a major change, so I would like to know more about the deliberations that brought it about.

It seems to me that the change should have more of an impact at imp scoring than matchpoints. At the latter, down four against a vulnerable game was too much before the change. For a sacrifice against a vulnerable major-suit slam, down seven was a matchpoint profit under the old rules, down six under the new rules.



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re:Change in non-vulnerable penalties--- history? - 2006/10/31 22:30 Do they? I will have a look. The Egnlish version does not - I checked before I potsed the comment below.

I have a pretty well idea of all the differences between the English and Ameriucan vesrions of the Duplicate laws, but not of the differences in the Rubber laws.



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re:Change in non-vulnerable penalties--- history? - 2006/11/01 06:56 http://www.acbl.org/info/rlaws/front.stm



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re:Change in non-vulnerable penalties--- history? - 2006/11/01 21:38 Rules are consciously designed based on feedback & experience as good as logic, & there is little doubt that this particular change was because of experience of high level sacrifices, since that was the reason given at the time.

[s]

Why not? Because it is too dificult to remebmer.



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re:Change in non-vulnerable penalties--- history? - 2009/09/20 08:18 The 100, 300, 500, 700, was changed as a result of meckwell sacrificing in 7s against a cold 7h grand slam in the world cup final in 1881. He went 9 down for (then) 1700 and gained 510 for his team. Meckstroth's one and only bid was 7s after the opponents had confidently bid to 7h. The complete deal and bidding is given in http://www.pattayabridge.com/Scoringatbridge.htm



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