Rule of 7 versus Preempt - When an opponent opens preemptively,
the Rule of 7 provides the overcaller a guideline on what values to
anticipate in partner's hand. First, the overcaller should have an
opening hand or better, with values and length in side suits.
the Rule of 7 (guideline) suggests the overcaller predict an ordinary 7
points in advancer's seat - one without controls in specific suits.
Using this criteria when advancer makes a minimum response, the overcaller
and advancer have a standard criteria to assess forward-going bids.
(2D) - X - (P) - ?
(2H) - X - (3D) - ?
expects advancer to hold a mediocre 7 point hand when responding. For
this illustration, imagine advancer holds:
poor 2-5 point hand, flat with no Aces, Kings, or useful features
lackluster 6-8 point hand, perhaps with 1 control but no appreciable length
good 7-9 point hand, with either 2 controls or 1 control and working length
||(2D) - X - (P) - ?
||(2D) - X - (3D) - ?
||Minimum bid (freebid)
Jump, cuebid, or Notrump
|Freebid or jump
the Rule of 7 also applies when Overcaller is faced with a difficult
decision whether to enter the auction in direct seat. While the rule
of thumb requires overcaller to have an opening hand with shortness in
opponent's suit (except bidding Notrump with stoppers), the astute
overcaller may profit by considering the Rule of 7 with lesser values.