This is from the 2005 version of the Berkowitz-Cohen bridge notes. They retired in 2009. (There were later versions, but this is the latest available version for publication).
Warning: This is probably of use only to expert players who are in long-time regular partnerships.
ONLY PENALTY DOUBLES BELOW 2NT ARE IF:1) The opponents have already been “left in” or doubled for penalties (or we d
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