Acol at BBO
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Bidding and Alerts in our Tourneys

Only the Acol bidding system is allowed. (Although substitutes may play their own system.)

Accordingly :

  1. The normal system is that an opening 1NT is weak (12-14) and an opening 2NT is strong (20-22). Such bids do not require alerting. Any other ranges of an opening NT are the exception and need to be alerted.
  2. Openings of 1 of a major must be of 4+ cards. Any other partnership agreements need to be alerted.
  3. Multi-2s and other unusual conventions which some players include with Acol are allowed, but must be alerted.
  4. In every other situation, normal alerting rules apply.

PSYCHES and HUMS are not allowed. Please report players who bid psyches and HUMS to the TD.