NOTRUMP OVERCALLS

Direct:

    Indicate the HCP range when you overcall RHO's opening
    bid with 1NT.

Systems On:

    Check if you play the same responses to a 1NT overcall
    as to a 1NT opening bid.

Conv.:

    Check this box and add a description the conventional meaning of a notrump overcall. For example, you may play a "Sandwich NT" where
    1 - Pass - 1 - 1NT shows a weak hand with clubs and hearts.

Balancing:

    Show range of a balancing 1NT overcall in this type of auction:
    1 - Pass - Pass - 1NT: 15-17? 11-15? 9-11?

Jump to 2NT:

    Check the type of two-suiter shown:

    Minors:

    If 1 - 2NT or 1 - 2NT shows both minors, check Minors.

    2 Lowest:

    If 1 - 2NT shows 's and
    's and 1 - 2NT shows 's and 's, check 2 Lowest.

Conv.:

    Check this box and add a description the conventional meaning of a Jump to 2NT after RHO's opening bid. If you play any other conventional meanings of Notrump Overcalls, you may list them on this line.

The above is the official ACBL convention card guidelines as of Sep 2000.